diff options
Diffstat (limited to 'drivers/net/wireless/bcmdhd/dhd_pcie.c')
| -rw-r--r-- | drivers/net/wireless/bcmdhd/dhd_pcie.c | 4385 |
1 files changed, 4385 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd/dhd_pcie.c b/drivers/net/wireless/bcmdhd/dhd_pcie.c new file mode 100644 index 00000000..b26ba859 --- /dev/null +++ b/drivers/net/wireless/bcmdhd/dhd_pcie.c @@ -0,0 +1,4385 @@ +/* + * DHD Bus Module for PCIE + * + * $Copyright Open Broadcom Corporation$ + * + * $Id: dhd_pcie.c 491657 2014-07-17 06:29:40Z $ + */ + + +/* include files */ +#include <typedefs.h> +#include <bcmutils.h> +#include <bcmdevs.h> +#include <siutils.h> +#include <hndsoc.h> +#include <hndpmu.h> +#include <sbchipc.h> +#if defined(DHD_DEBUG) +#include <hnd_armtrap.h> +#include <hnd_cons.h> +#endif /* defined(DHD_DEBUG) */ +#include <dngl_stats.h> +#include <pcie_core.h> +#include <dhd.h> +#include <dhd_bus.h> +#include <dhd_flowring.h> +#include <dhd_proto.h> +#include <dhd_dbg.h> +#include <dhdioctl.h> +#include <sdiovar.h> +#include <bcmmsgbuf.h> +#include <pcicfg.h> +#include <dhd_pcie.h> +#include <bcmpcie.h> +#include <bcmendian.h> +#ifdef DHDTCPACK_SUPPRESS +#include <dhd_ip.h> +#endif /* DHDTCPACK_SUPPRESS */ + +#ifdef BCMEMBEDIMAGE +#include BCMEMBEDIMAGE +#endif /* BCMEMBEDIMAGE */ + +#define MEMBLOCK 2048 /* Block size used for downloading of dongle image */ +#define MAX_NVRAMBUF_SIZE 6144 /* max nvram buf size */ + +#define ARMCR4REG_BANKIDX (0x40/sizeof(uint32)) +#define ARMCR4REG_BANKPDA (0x4C/sizeof(uint32)) +/* Temporary war to fix precommit till sync issue between trunk & precommit branch is resolved */ + +int dhd_dongle_memsize; +int dhd_dongle_ramsize; +#ifdef DHD_DEBUG +static int dhdpcie_checkdied(dhd_bus_t *bus, char *data, uint size); +static int dhdpcie_bus_readconsole(dhd_bus_t *bus); +#endif +static int dhdpcie_bus_membytes(dhd_bus_t *bus, bool write, ulong address, uint8 *data, uint size); +static int dhdpcie_bus_doiovar(dhd_bus_t *bus, const bcm_iovar_t *vi, uint32 actionid, + const char *name, void *params, + int plen, void *arg, int len, int val_size); +static int dhdpcie_bus_lpback_req(struct dhd_bus *bus, uint32 intval); +static int dhdpcie_bus_dmaxfer_req(struct dhd_bus *bus, + uint32 len, uint32 srcdelay, uint32 destdelay); +static int dhdpcie_bus_download_state(dhd_bus_t *bus, bool enter); +static int _dhdpcie_download_firmware(struct dhd_bus *bus); +static int dhdpcie_download_firmware(dhd_bus_t *bus, osl_t *osh); +static int dhdpcie_bus_write_vars(dhd_bus_t *bus); +static void dhdpcie_bus_process_mailbox_intr(dhd_bus_t *bus, uint32 intstatus); +static void dhdpci_bus_read_frames(dhd_bus_t *bus); +static int dhdpcie_readshared(dhd_bus_t *bus); +static void dhdpcie_init_shared_addr(dhd_bus_t *bus); +static bool dhdpcie_dongle_attach(dhd_bus_t *bus); +static void dhdpcie_bus_intr_enable(dhd_bus_t *bus); +static void dhdpcie_bus_dongle_setmemsize(dhd_bus_t *bus, int mem_size); +static void dhdpcie_bus_release_dongle(dhd_bus_t *bus, osl_t *osh, + bool dongle_isolation, bool reset_flag); +static void dhdpcie_bus_release_malloc(dhd_bus_t *bus, osl_t *osh); +static int dhdpcie_downloadvars(dhd_bus_t *bus, void *arg, int len); +static uint8 dhdpcie_bus_rtcm8(dhd_bus_t *bus, ulong offset); +static void dhdpcie_bus_wtcm8(dhd_bus_t *bus, ulong offset, uint8 data); +static void dhdpcie_bus_wtcm16(dhd_bus_t *bus, ulong offset, uint16 data); +static uint16 dhdpcie_bus_rtcm16(dhd_bus_t *bus, ulong offset); +static void dhdpcie_bus_wtcm32(dhd_bus_t *bus, ulong offset, uint32 data); +static uint32 dhdpcie_bus_rtcm32(dhd_bus_t *bus, ulong offset); +static void dhdpcie_bus_wtcm64(dhd_bus_t *bus, ulong offset, uint64 data); +static uint64 dhdpcie_bus_rtcm64(dhd_bus_t *bus, ulong offset); +static void dhdpcie_bus_cfg_set_bar0_win(dhd_bus_t *bus, uint32 data); +static void dhdpcie_bus_reg_unmap(osl_t *osh, ulong addr, int size); +static int dhdpcie_cc_nvmshadow(dhd_bus_t *bus, struct bcmstrbuf *b); +static void dhdpcie_send_mb_data(dhd_bus_t *bus, uint32 h2d_mb_data); +static void dhd_fillup_ring_sharedptr_info(dhd_bus_t *bus, ring_info_t *ring_info); +extern void dhd_dpc_kill(dhd_pub_t *dhdp); + +#ifdef BCMEMBEDIMAGE +static int dhdpcie_download_code_array(dhd_bus_t *bus); +#endif /* BCMEMBEDIMAGE */ + + + +#define PCI_VENDOR_ID_BROADCOM 0x14e4 + +/* IOVar table */ +enum { + IOV_INTR = 1, + IOV_MEMBYTES, + IOV_MEMSIZE, + IOV_SET_DOWNLOAD_STATE, + IOV_DEVRESET, + IOV_VARS, + IOV_MSI_SIM, + IOV_PCIE_LPBK, + IOV_CC_NVMSHADOW, + IOV_RAMSIZE, + IOV_RAMSTART, + IOV_SLEEP_ALLOWED, + IOV_PCIE_DMAXFER, + IOV_PCIE_SUSPEND, + IOV_PCIEREG, + IOV_PCIECFGREG, + IOV_PCIECOREREG, + IOV_PCIESERDESREG, + IOV_BAR0_SECWIN_REG, + IOV_SBREG, + IOV_DONGLEISOLATION, + IOV_LTRSLEEPON_UNLOOAD, + IOV_RX_METADATALEN, + IOV_TX_METADATALEN, + IOV_TXP_THRESHOLD, + IOV_BUZZZ_DUMP, + IOV_DUMP_RINGUPD_BLOCK, + IOV_DMA_RINGINDICES, + IOV_DB1_FOR_MB, + IOV_FLOW_PRIO_MAP +}; + + +const bcm_iovar_t dhdpcie_iovars[] = { + {"intr", IOV_INTR, 0, IOVT_BOOL, 0 }, + {"membytes", IOV_MEMBYTES, 0, IOVT_BUFFER, 2 * sizeof(int) }, + {"memsize", IOV_MEMSIZE, 0, IOVT_UINT32, 0 }, + {"dwnldstate", IOV_SET_DOWNLOAD_STATE, 0, IOVT_BOOL, 0 }, + {"vars", IOV_VARS, 0, IOVT_BUFFER, 0 }, + {"devreset", IOV_DEVRESET, 0, IOVT_BOOL, 0 }, + {"pcie_lpbk", IOV_PCIE_LPBK, 0, IOVT_UINT32, 0 }, + {"cc_nvmshadow", IOV_CC_NVMSHADOW, 0, IOVT_BUFFER, 0 }, + {"ramsize", IOV_RAMSIZE, 0, IOVT_UINT32, 0 }, + {"ramstart", IOV_RAMSTART, 0, IOVT_UINT32, 0 }, + {"pciereg", IOV_PCIEREG, 0, IOVT_BUFFER, 2 * sizeof(int32) }, + {"pciecfgreg", IOV_PCIECFGREG, 0, IOVT_BUFFER, 2 * sizeof(int32) }, + {"pciecorereg", IOV_PCIECOREREG, 0, IOVT_BUFFER, 2 * sizeof(int32) }, + {"pcieserdesreg", IOV_PCIESERDESREG, 0, IOVT_BUFFER, 3 * sizeof(int32) }, + {"bar0secwinreg", IOV_BAR0_SECWIN_REG, 0, IOVT_BUFFER, 2 * sizeof(int32) }, + {"sbreg", IOV_SBREG, 0, IOVT_BUFFER, sizeof(sdreg_t) }, + {"pcie_dmaxfer", IOV_PCIE_DMAXFER, 0, IOVT_BUFFER, 3 * sizeof(int32) }, + {"pcie_suspend", IOV_PCIE_SUSPEND, 0, IOVT_UINT32, 0 }, + {"sleep_allowed", IOV_SLEEP_ALLOWED, 0, IOVT_BOOL, 0 }, + {"dngl_isolation", IOV_DONGLEISOLATION, 0, IOVT_UINT32, 0 }, + {"ltrsleep_on_unload", IOV_LTRSLEEPON_UNLOOAD, 0, IOVT_UINT32, 0 }, + {"dump_ringupdblk", IOV_DUMP_RINGUPD_BLOCK, 0, IOVT_BUFFER, 0 }, + {"dma_ring_indices", IOV_DMA_RINGINDICES, 0, IOVT_UINT32, 0}, + {"rx_metadata_len", IOV_RX_METADATALEN, 0, IOVT_UINT32, 0 }, + {"tx_metadata_len", IOV_TX_METADATALEN, 0, IOVT_UINT32, 0 }, + {"db1_for_mb", IOV_DB1_FOR_MB, 0, IOVT_UINT32, 0 }, + {"txp_thresh", IOV_TXP_THRESHOLD, 0, IOVT_UINT32, 0 }, + {"buzzz_dump", IOV_BUZZZ_DUMP, 0, IOVT_UINT32, 0 }, + {"flow_prio_map", IOV_FLOW_PRIO_MAP, 0, IOVT_UINT32, 0 }, + {NULL, 0, 0, 0, 0 } +}; + +#define MAX_READ_TIMEOUT 5 * 1000 * 1000 + +/* Register/Unregister functions are called by the main DHD entry + * point (e.g. module insertion) to link with the bus driver, in + * order to look for or await the device. + */ + +int +dhd_bus_register(void) +{ + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + return dhdpcie_bus_register(); +} + +void +dhd_bus_unregister(void) +{ + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + dhdpcie_bus_unregister(); + return; +} + + +/** returns a host virtual address */ +uint32 * +dhdpcie_bus_reg_map(osl_t *osh, ulong addr, int size) +{ + return (uint32 *)REG_MAP(addr, size); +} + +void +dhdpcie_bus_reg_unmap(osl_t *osh, ulong addr, int size) +{ + REG_UNMAP((void*)(uintptr)addr); + return; +} + +/** + * 'regs' is the host virtual address that maps to the start of the PCIe BAR0 window. The first 4096 + * bytes in this window are mapped to the backplane address in the PCIEBAR0Window register. The + * precondition is that the PCIEBAR0Window register 'points' at the PCIe core. + * + * 'tcm' is the *host* virtual address at which tcm is mapped. + */ +dhd_bus_t* dhdpcie_bus_attach(osl_t *osh, volatile char* regs, volatile char* tcm) +{ + dhd_bus_t *bus; + + DHD_TRACE(("%s: ENTER\n", __FUNCTION__)); + + do { + if (!(bus = MALLOC(osh, sizeof(dhd_bus_t)))) { + DHD_ERROR(("%s: MALLOC of dhd_bus_t failed\n", __FUNCTION__)); + break; + } + bzero(bus, sizeof(dhd_bus_t)); + bus->regs = regs; + bus->tcm = tcm; + bus->osh = osh; + + dll_init(&bus->const_flowring); + + /* Attach pcie shared structure */ + bus->pcie_sh = MALLOC(osh, sizeof(pciedev_shared_t)); + + /* dhd_common_init(osh); */ + + if (dhdpcie_dongle_attach(bus)) { + DHD_ERROR(("%s: dhdpcie_probe_attach failed\n", __FUNCTION__)); + break; + } + + /* software resources */ + if (!(bus->dhd = dhd_attach(osh, bus, PCMSGBUF_HDRLEN))) { + DHD_ERROR(("%s: dhd_attach failed\n", __FUNCTION__)); + + break; + } + bus->dhd->busstate = DHD_BUS_DOWN; + bus->db1_for_mb = TRUE; + bus->dhd->hang_report = TRUE; + + DHD_TRACE(("%s: EXIT SUCCESS\n", + __FUNCTION__)); + + return bus; + } while (0); + + DHD_TRACE(("%s: EXIT FAILURE\n", __FUNCTION__)); + + return NULL; +} + +uint +dhd_bus_chip(struct dhd_bus *bus) +{ + ASSERT(bus->sih != NULL); + return bus->sih->chip; +} + +uint +dhd_bus_chiprev(struct dhd_bus *bus) +{ + ASSERT(bus); + ASSERT(bus->sih != NULL); + return bus->sih->chiprev; +} + +void * +dhd_bus_pub(struct dhd_bus *bus) +{ + return bus->dhd; +} + +void * +dhd_bus_sih(struct dhd_bus *bus) +{ + return (void *)bus->sih; +} + +void * +dhd_bus_txq(struct dhd_bus *bus) +{ + return &bus->txq; +} + +/* Get Chip ID version */ +uint dhd_bus_chip_id(dhd_pub_t *dhdp) +{ + dhd_bus_t *bus = dhdp->bus; + return bus->sih->chip; +} + +/* Get Chip Rev ID version */ +uint dhd_bus_chiprev_id(dhd_pub_t *dhdp) +{ + dhd_bus_t *bus = dhdp->bus; + return bus->sih->chiprev; +} + +/* Get Chip Pkg ID version */ +uint dhd_bus_chippkg_id(dhd_pub_t *dhdp) +{ + dhd_bus_t *bus = dhdp->bus; + return bus->sih->chippkg; +} + + +/* + +Name: dhdpcie_bus_isr + +Parametrs: + +1: IN int irq -- interrupt vector +2: IN void *arg -- handle to private data structure + +Return value: + +Status (TRUE or FALSE) + +Description: +Interrupt Service routine checks for the status register, +disable interrupt and queue DPC if mail box interrupts are raised. +*/ + + +int32 +dhdpcie_bus_isr(dhd_bus_t *bus) +{ + + do { + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + /* verify argument */ + if (!bus) { + DHD_ERROR(("%s : bus is null pointer , exit \n", __FUNCTION__)); + break; + } + + if (bus->dhd->busstate == DHD_BUS_DOWN) { + DHD_ERROR(("%s : bus is down. we have nothing to do\n", + __FUNCTION__)); + break; + } + + /* Overall operation: + * - Mask further interrupts + * - Read/ack intstatus + * - Take action based on bits and state + * - Reenable interrupts (as per state) + */ + + /* Count the interrupt call */ + bus->intrcount++; + + /* read interrupt status register!! Status bits will be cleared in DPC !! */ + bus->ipend = TRUE; + dhdpcie_bus_intr_disable(bus); /* Disable interrupt!! */ + bus->intdis = TRUE; + +#if defined(PCIE_ISR_THREAD) + + DHD_TRACE(("Calling dhd_bus_dpc() from %s\n", __FUNCTION__)); + DHD_OS_WAKE_LOCK(bus->dhd); + while (dhd_bus_dpc(bus)); + DHD_OS_WAKE_UNLOCK(bus->dhd); +#else + bus->dpc_sched = TRUE; + dhd_sched_dpc(bus->dhd); /* queue DPC now!! */ +#endif /* defined(SDIO_ISR_THREAD) */ + + DHD_TRACE(("%s: Exit Success DPC Queued\n", __FUNCTION__)); + return TRUE; + + } while (0); + + DHD_TRACE(("%s: Exit Failure\n", __FUNCTION__)); + return FALSE; +} + +static bool +dhdpcie_dongle_attach(dhd_bus_t *bus) +{ + + osl_t *osh = bus->osh; + void *regsva = (void*)bus->regs; + uint16 devid = bus->cl_devid; + uint32 val; + sbpcieregs_t *sbpcieregs; + + DHD_TRACE(("%s: ENTER\n", + __FUNCTION__)); + + bus->alp_only = TRUE; + bus->sih = NULL; + + /* Set bar0 window to si_enum_base */ + dhdpcie_bus_cfg_set_bar0_win(bus, SI_ENUM_BASE); + + /* si_attach() will provide an SI handle and scan the backplane */ + if (!(bus->sih = si_attach((uint)devid, osh, regsva, PCI_BUS, bus, + &bus->vars, &bus->varsz))) { + DHD_ERROR(("%s: si_attach failed!\n", __FUNCTION__)); + goto fail; + } + + + si_setcore(bus->sih, PCIE2_CORE_ID, 0); + sbpcieregs = (sbpcieregs_t*)(bus->regs); + + /* WAR where the BAR1 window may not be sized properly */ + W_REG(osh, &sbpcieregs->configaddr, 0x4e0); + val = R_REG(osh, &sbpcieregs->configdata); + W_REG(osh, &sbpcieregs->configdata, val); + + /* Get info on the ARM and SOCRAM cores... */ + /* Should really be qualified by device id */ + if ((si_setcore(bus->sih, ARM7S_CORE_ID, 0)) || + (si_setcore(bus->sih, ARMCM3_CORE_ID, 0)) || + (si_setcore(bus->sih, ARMCR4_CORE_ID, 0))) { + bus->armrev = si_corerev(bus->sih); + } else { + DHD_ERROR(("%s: failed to find ARM core!\n", __FUNCTION__)); + goto fail; + } + + if (!si_setcore(bus->sih, ARMCR4_CORE_ID, 0)) { + if (!(bus->orig_ramsize = si_socram_size(bus->sih))) { + DHD_ERROR(("%s: failed to find SOCRAM memory!\n", __FUNCTION__)); + goto fail; + } + } else { + /* cr4 has a different way to find the RAM size from TCM's */ + if (!(bus->orig_ramsize = si_tcm_size(bus->sih))) { + DHD_ERROR(("%s: failed to find CR4-TCM memory!\n", __FUNCTION__)); + goto fail; + } + /* also populate base address */ + switch ((uint16)bus->sih->chip) { + case BCM4339_CHIP_ID: + case BCM4335_CHIP_ID: + bus->dongle_ram_base = CR4_4335_RAM_BASE; + break; + case BCM4358_CHIP_ID: + case BCM4356_CHIP_ID: + case BCM4354_CHIP_ID: + case BCM43567_CHIP_ID: + case BCM43569_CHIP_ID: + case BCM4350_CHIP_ID: + case BCM43570_CHIP_ID: + bus->dongle_ram_base = CR4_4350_RAM_BASE; + break; + case BCM4360_CHIP_ID: + bus->dongle_ram_base = CR4_4360_RAM_BASE; + break; + case BCM4345_CHIP_ID: + bus->dongle_ram_base = CR4_4345_RAM_BASE; + break; + case BCM43602_CHIP_ID: + bus->dongle_ram_base = CR4_43602_RAM_BASE; + break; + case BCM4349_CHIP_GRPID: + bus->dongle_ram_base = CR4_4349_RAM_BASE; + break; + default: + bus->dongle_ram_base = 0; + DHD_ERROR(("%s: WARNING: Using default ram base at 0x%x\n", + __FUNCTION__, bus->dongle_ram_base)); + } + } + bus->ramsize = bus->orig_ramsize; + if (dhd_dongle_memsize) + dhdpcie_bus_dongle_setmemsize(bus, dhd_dongle_memsize); + + DHD_ERROR(("DHD: dongle ram size is set to %d(orig %d) at 0x%x\n", + bus->ramsize, bus->orig_ramsize, bus->dongle_ram_base)); + + bus->srmemsize = si_socram_srmem_size(bus->sih); + + + bus->def_intmask = PCIE_MB_D2H_MB_MASK | PCIE_MB_TOPCIE_FN0_0 | PCIE_MB_TOPCIE_FN0_1; + + /* Set the poll and/or interrupt flags */ + bus->intr = (bool)dhd_intr; + + bus->wait_for_d3_ack = 1; + DHD_TRACE(("%s: EXIT: SUCCESS\n", + __FUNCTION__)); + return 0; + +fail: + if (bus->sih != NULL) + si_detach(bus->sih); + DHD_TRACE(("%s: EXIT: FAILURE\n", + __FUNCTION__)); + return -1; +} + +int +dhpcie_bus_unmask_interrupt(dhd_bus_t *bus) +{ + dhdpcie_bus_cfg_write_dword(bus, PCIIntmask, 4, I_MB); + return 0; +} +int +dhpcie_bus_mask_interrupt(dhd_bus_t *bus) +{ + dhdpcie_bus_cfg_write_dword(bus, PCIIntmask, 4, 0x0); + return 0; +} + +void +dhdpcie_bus_intr_enable(dhd_bus_t *bus) +{ + DHD_TRACE(("enable interrupts\n")); + + if (!bus || !bus->sih) + return; + + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + dhpcie_bus_unmask_interrupt(bus); + } + else if (bus->sih) { + si_corereg(bus->sih, bus->sih->buscoreidx, PCIMailBoxMask, + bus->def_intmask, bus->def_intmask); + } +} + +void +dhdpcie_bus_intr_disable(dhd_bus_t *bus) +{ + + DHD_TRACE(("%s Enter\n", __FUNCTION__)); + + if (!bus || !bus->sih) + return; + + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + dhpcie_bus_mask_interrupt(bus); + } + else if (bus->sih) { + si_corereg(bus->sih, bus->sih->buscoreidx, PCIMailBoxMask, + bus->def_intmask, 0); + } + + DHD_TRACE(("%s Exit\n", __FUNCTION__)); +} + + +/* Detach and free everything */ +void +dhdpcie_bus_release(dhd_bus_t *bus) +{ + bool dongle_isolation = FALSE; + osl_t *osh = NULL; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (bus) { + + osh = bus->osh; + ASSERT(osh); + + if (bus->dhd) { + dongle_isolation = bus->dhd->dongle_isolation; + dhd_detach(bus->dhd); + + if (bus->intr) { + dhdpcie_bus_intr_disable(bus); + dhdpcie_free_irq(bus); + } + dhdpcie_bus_release_dongle(bus, osh, dongle_isolation, TRUE); + dhd_free(bus->dhd); + bus->dhd = NULL; + } + + /* unmap the regs and tcm here!! */ + if (bus->regs) { + dhdpcie_bus_reg_unmap(osh, (ulong)bus->regs, DONGLE_REG_MAP_SIZE); + bus->regs = NULL; + } + if (bus->tcm) { + dhdpcie_bus_reg_unmap(osh, (ulong)bus->tcm, DONGLE_TCM_MAP_SIZE); + bus->tcm = NULL; + } + + dhdpcie_bus_release_malloc(bus, osh); + /* Detach pcie shared structure */ + if (bus->pcie_sh) + MFREE(osh, bus->pcie_sh, sizeof(pciedev_shared_t)); + +#ifdef DHD_DEBUG + + if (bus->console.buf != NULL) + MFREE(osh, bus->console.buf, bus->console.bufsize); +#endif + + + /* Finally free bus info */ + MFREE(osh, bus, sizeof(dhd_bus_t)); + + } + + DHD_TRACE(("%s: Exit\n", __FUNCTION__)); + +} + + +void +dhdpcie_bus_release_dongle(dhd_bus_t *bus, osl_t *osh, bool dongle_isolation, bool reset_flag) +{ + + DHD_TRACE(("%s Enter\n", __FUNCTION__)); + + DHD_TRACE(("%s: Enter bus->dhd %p bus->dhd->dongle_reset %d \n", __FUNCTION__, + bus->dhd, bus->dhd->dongle_reset)); + + if ((bus->dhd && bus->dhd->dongle_reset) && reset_flag) { + DHD_TRACE(("%s Exit\n", __FUNCTION__)); + return; + } + + if (bus->sih) { + + if (!dongle_isolation) + pcie_watchdog_reset(bus->osh, bus->sih, (sbpcieregs_t *)(bus->regs)); + + if (bus->ltrsleep_on_unload) { + si_corereg(bus->sih, bus->sih->buscoreidx, + OFFSETOF(sbpcieregs_t, u.pcie2.ltr_state), ~0, 0); + } + si_detach(bus->sih); + if (bus->vars && bus->varsz) + MFREE(osh, bus->vars, bus->varsz); + bus->vars = NULL; + } + + DHD_TRACE(("%s Exit\n", __FUNCTION__)); +} + +uint32 +dhdpcie_bus_cfg_read_dword(dhd_bus_t *bus, uint32 addr, uint32 size) +{ + uint32 data = OSL_PCI_READ_CONFIG(bus->osh, addr, size); + return data; +} + +/* 32 bit config write */ +void +dhdpcie_bus_cfg_write_dword(dhd_bus_t *bus, uint32 addr, uint32 size, uint32 data) +{ + OSL_PCI_WRITE_CONFIG(bus->osh, addr, size, data); +} + +void +dhdpcie_bus_cfg_set_bar0_win(dhd_bus_t *bus, uint32 data) +{ + OSL_PCI_WRITE_CONFIG(bus->osh, PCI_BAR0_WIN, 4, data); +} + +void +dhdpcie_bus_dongle_setmemsize(struct dhd_bus *bus, int mem_size) +{ + int32 min_size = DONGLE_MIN_MEMSIZE; + /* Restrict the memsize to user specified limit */ + DHD_ERROR(("user: Restrict the dongle ram size to %d, min accepted %d\n", + dhd_dongle_memsize, min_size)); + if ((dhd_dongle_memsize > min_size) && + (dhd_dongle_memsize < (int32)bus->orig_ramsize)) + bus->ramsize = dhd_dongle_memsize; +} + +void +dhdpcie_bus_release_malloc(dhd_bus_t *bus, osl_t *osh) +{ + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (bus->dhd && bus->dhd->dongle_reset) + return; + + if (bus->vars && bus->varsz) { + MFREE(osh, bus->vars, bus->varsz); + bus->vars = NULL; + } + + DHD_TRACE(("%s: Exit\n", __FUNCTION__)); + return; + +} + +/* Stop bus module: clear pending frames, disable data flow */ +void dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex) +{ + uint32 status; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (!bus->dhd) + return; + + if (bus->dhd->busstate == DHD_BUS_DOWN) { + DHD_ERROR(("%s: already down by net_dev_reset\n", __FUNCTION__)); + goto done; + } + + bus->dhd->busstate = DHD_BUS_DOWN; + dhdpcie_bus_intr_disable(bus); + status = dhdpcie_bus_cfg_read_dword(bus, PCIIntstatus, 4); + dhdpcie_bus_cfg_write_dword(bus, PCIIntstatus, 4, status); + if (!dhd_download_fw_on_driverload) + dhd_dpc_kill(bus->dhd); + + /* Clear rx control and wake any waiters */ + bus->rxlen = 0; + dhd_os_ioctl_resp_wake(bus->dhd); + +done: + return; +} + +/* Watchdog timer function */ +bool dhd_bus_watchdog(dhd_pub_t *dhd) +{ +#ifdef DHD_DEBUG + dhd_bus_t *bus; + bus = dhd->bus; + + + + /* Poll for console output periodically */ + if (dhd->busstate == DHD_BUS_DATA && dhd_console_ms != 0) { + bus->console.count += dhd_watchdog_ms; + if (bus->console.count >= dhd_console_ms) { + bus->console.count -= dhd_console_ms; + /* Make sure backplane clock is on */ + if (dhdpcie_bus_readconsole(bus) < 0) + dhd_console_ms = 0; /* On error, stop trying */ + } + } +#endif /* DHD_DEBUG */ + + return FALSE; +} + + + +/* Download firmware image and nvram image */ +int +dhd_bus_download_firmware(struct dhd_bus *bus, osl_t *osh, + char *pfw_path, char *pnv_path) +{ + int ret; + + bus->fw_path = pfw_path; + bus->nv_path = pnv_path; + + ret = dhdpcie_download_firmware(bus, osh); + + return ret; +} + +static int +dhdpcie_download_firmware(struct dhd_bus *bus, osl_t *osh) +{ + int ret = 0; + + DHD_TRACE_HW4(("%s: firmware path=%s, nvram path=%s\n", + __FUNCTION__, bus->fw_path, bus->nv_path)); + + DHD_OS_WAKE_LOCK(bus->dhd); + + ret = _dhdpcie_download_firmware(bus); + + DHD_OS_WAKE_UNLOCK(bus->dhd); + return ret; +} + +static int +dhdpcie_download_code_file(struct dhd_bus *bus, char *pfw_path) +{ + int bcmerror = -1; + int offset = 0; + int len; + void *image = NULL; + uint8 *memblock = NULL, *memptr; + + DHD_ERROR(("%s: download firmware %s\n", __FUNCTION__, pfw_path)); + + /* Should succeed in opening image if it is actually given through registry + * entry or in module param. + */ + image = dhd_os_open_image(pfw_path); + if (image == NULL) + goto err; + + memptr = memblock = MALLOC(bus->dhd->osh, MEMBLOCK + DHD_SDALIGN); + if (memblock == NULL) { + DHD_ERROR(("%s: Failed to allocate memory %d bytes\n", __FUNCTION__, MEMBLOCK)); + goto err; + } + if ((uint32)(uintptr)memblock % DHD_SDALIGN) + memptr += (DHD_SDALIGN - ((uint32)(uintptr)memblock % DHD_SDALIGN)); + + /* Download image */ + while ((len = dhd_os_get_image_block((char*)memptr, MEMBLOCK, image))) { + if (len < 0) { + DHD_ERROR(("%s: dhd_os_get_image_block failed (%d)\n", __FUNCTION__, len)); + bcmerror = BCME_ERROR; + goto err; + } + /* check if CR4 */ + if (si_setcore(bus->sih, ARMCR4_CORE_ID, 0)) { + /* if address is 0, store the reset instruction to be written in 0 */ + + if (offset == 0) { + bus->resetinstr = *(((uint32*)memptr)); + /* Add start of RAM address to the address given by user */ + offset += bus->dongle_ram_base; + } + } + + bcmerror = dhdpcie_bus_membytes(bus, TRUE, offset, memptr, len); + if (bcmerror) { + DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n", + __FUNCTION__, bcmerror, MEMBLOCK, offset)); + goto err; + } + + offset += MEMBLOCK; + } + +err: + if (memblock) + MFREE(bus->dhd->osh, memblock, MEMBLOCK + DHD_SDALIGN); + + if (image) + dhd_os_close_image(image); + + return bcmerror; +} + + +static int +dhdpcie_download_nvram(struct dhd_bus *bus) +{ + int bcmerror = -1; + uint len; + void * image = NULL; + char * memblock = NULL; + char *bufp; + char *pnv_path; + bool nvram_file_exists; + + pnv_path = bus->nv_path; + + nvram_file_exists = ((pnv_path != NULL) && (pnv_path[0] != '\0')); + if (!nvram_file_exists && (bus->nvram_params == NULL)) + return (0); + + if (nvram_file_exists) { + image = dhd_os_open_image(pnv_path); + if (image == NULL) + goto err; + } + + memblock = MALLOC(bus->dhd->osh, MAX_NVRAMBUF_SIZE); + if (memblock == NULL) { + DHD_ERROR(("%s: Failed to allocate memory %d bytes\n", + __FUNCTION__, MAX_NVRAMBUF_SIZE)); + goto err; + } + + /* Download variables */ + if (nvram_file_exists) { + len = dhd_os_get_image_block(memblock, MAX_NVRAMBUF_SIZE, image); + } + else { + + /* nvram is string with null terminated. cannot use strlen */ + len = bus->nvram_params_len; + ASSERT(len <= MAX_NVRAMBUF_SIZE); + memcpy(memblock, bus->nvram_params, len); + } + if (len > 0 && len < MAX_NVRAMBUF_SIZE) { + bufp = (char *)memblock; + bufp[len] = 0; + + if (nvram_file_exists) + len = process_nvram_vars(bufp, len); + + if (len % 4) { + len += 4 - (len % 4); + } + bufp += len; + *bufp++ = 0; + if (len) + bcmerror = dhdpcie_downloadvars(bus, memblock, len + 1); + if (bcmerror) { + DHD_ERROR(("%s: error downloading vars: %d\n", + __FUNCTION__, bcmerror)); + } + } + else { + DHD_ERROR(("%s: error reading nvram file: %d\n", + __FUNCTION__, len)); + bcmerror = BCME_ERROR; + } + +err: + if (memblock) + MFREE(bus->dhd->osh, memblock, MAX_NVRAMBUF_SIZE); + + if (image) + dhd_os_close_image(image); + + return bcmerror; +} + + +#ifdef BCMEMBEDIMAGE +int +dhdpcie_download_code_array(struct dhd_bus *bus) +{ + int bcmerror = -1; + int offset = 0; + unsigned char *p_dlarray = NULL; + unsigned int dlarray_size = 0; + unsigned int downloded_len, remaining_len, len; + char *p_dlimagename, *p_dlimagever, *p_dlimagedate; + uint8 *memblock = NULL, *memptr; + + downloded_len = 0; + remaining_len = 0; + len = 0; + + p_dlarray = dlarray; + dlarray_size = sizeof(dlarray); + p_dlimagename = dlimagename; + p_dlimagever = dlimagever; + p_dlimagedate = dlimagedate; + + if ((p_dlarray == 0) || (dlarray_size == 0) ||(dlarray_size > bus->ramsize) || + (p_dlimagename == 0) || (p_dlimagever == 0) || (p_dlimagedate == 0)) + goto err; + + memptr = memblock = MALLOC(bus->dhd->osh, MEMBLOCK + DHD_SDALIGN); + if (memblock == NULL) { + DHD_ERROR(("%s: Failed to allocate memory %d bytes\n", __FUNCTION__, MEMBLOCK)); + goto err; + } + if ((uint32)(uintptr)memblock % DHD_SDALIGN) + memptr += (DHD_SDALIGN - ((uint32)(uintptr)memblock % DHD_SDALIGN)); + + while (downloded_len < dlarray_size) { + remaining_len = dlarray_size - downloded_len; + if (remaining_len >= MEMBLOCK) + len = MEMBLOCK; + else + len = remaining_len; + + memcpy(memptr, (p_dlarray + downloded_len), len); + /* check if CR4 */ + if (si_setcore(bus->sih, ARMCR4_CORE_ID, 0)) { + /* if address is 0, store the reset instruction to be written in 0 */ + if (offset == 0) { + bus->resetinstr = *(((uint32*)memptr)); + /* Add start of RAM address to the address given by user */ + offset += bus->dongle_ram_base; + } + } + bcmerror = dhdpcie_bus_membytes(bus, TRUE, offset, (uint8 *)memptr, len); + downloded_len += len; + if (bcmerror) { + DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n", + __FUNCTION__, bcmerror, MEMBLOCK, offset)); + goto err; + } + offset += MEMBLOCK; + } + +#ifdef DHD_DEBUG + /* Upload and compare the downloaded code */ + { + unsigned char *ularray = NULL; + unsigned int uploded_len; + uploded_len = 0; + bcmerror = -1; + ularray = MALLOC(bus->dhd->osh, dlarray_size); + if (ularray == NULL) + goto upload_err; + /* Upload image to verify downloaded contents. */ + offset = bus->dongle_ram_base; + memset(ularray, 0xaa, dlarray_size); + while (uploded_len < dlarray_size) { + remaining_len = dlarray_size - uploded_len; + if (remaining_len >= MEMBLOCK) + len = MEMBLOCK; + else + len = remaining_len; + bcmerror = dhdpcie_bus_membytes(bus, FALSE, offset, + (uint8 *)(ularray + uploded_len), len); + if (bcmerror) { + DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n", + __FUNCTION__, bcmerror, MEMBLOCK, offset)); + goto upload_err; + } + + uploded_len += len; + offset += MEMBLOCK; + } + + if (memcmp(p_dlarray, ularray, dlarray_size)) { + DHD_ERROR(("%s: Downloaded image is corrupted (%s, %s, %s).\n", + __FUNCTION__, p_dlimagename, p_dlimagever, p_dlimagedate)); + goto upload_err; + + } else + DHD_ERROR(("%s: Download, Upload and compare succeeded (%s, %s, %s).\n", + __FUNCTION__, p_dlimagename, p_dlimagever, p_dlimagedate)); +upload_err: + if (ularray) + MFREE(bus->dhd->osh, ularray, dlarray_size); + } +#endif /* DHD_DEBUG */ +err: + + if (memblock) + MFREE(bus->dhd->osh, memblock, MEMBLOCK + DHD_SDALIGN); + + return bcmerror; +} +#endif /* BCMEMBEDIMAGE */ + + +static int +_dhdpcie_download_firmware(struct dhd_bus *bus) +{ + int bcmerror = -1; + + bool embed = FALSE; /* download embedded firmware */ + bool dlok = FALSE; /* download firmware succeeded */ + + /* Out immediately if no image to download */ + if ((bus->fw_path == NULL) || (bus->fw_path[0] == '\0')) { +#ifdef BCMEMBEDIMAGE + embed = TRUE; +#else + DHD_ERROR(("%s: no fimrware file\n", __FUNCTION__)); + return 0; +#endif + } + + /* Keep arm in reset */ + if (dhdpcie_bus_download_state(bus, TRUE)) { + DHD_ERROR(("%s: error placing ARM core in reset\n", __FUNCTION__)); + goto err; + } + + /* External image takes precedence if specified */ + if ((bus->fw_path != NULL) && (bus->fw_path[0] != '\0')) { + if (dhdpcie_download_code_file(bus, bus->fw_path)) { + DHD_ERROR(("%s: dongle image file download failed\n", __FUNCTION__)); +#ifdef BCMEMBEDIMAGE + embed = TRUE; +#else + goto err; +#endif + } + else { + embed = FALSE; + dlok = TRUE; + } + } + +#ifdef BCMEMBEDIMAGE + if (embed) { + if (dhdpcie_download_code_array(bus)) { + DHD_ERROR(("%s: dongle image array download failed\n", __FUNCTION__)); + goto err; + } + else { + dlok = TRUE; + } + } +#else + BCM_REFERENCE(embed); +#endif + if (!dlok) { + DHD_ERROR(("%s: dongle image download failed\n", __FUNCTION__)); + goto err; + } + + /* EXAMPLE: nvram_array */ + /* If a valid nvram_arry is specified as above, it can be passed down to dongle */ + /* dhd_bus_set_nvram_params(bus, (char *)&nvram_array); */ + + + /* External nvram takes precedence if specified */ + if (dhdpcie_download_nvram(bus)) { + DHD_ERROR(("%s: dongle nvram file download failed\n", __FUNCTION__)); + goto err; + } + + /* Take arm out of reset */ + if (dhdpcie_bus_download_state(bus, FALSE)) { + DHD_ERROR(("%s: error getting out of ARM core reset\n", __FUNCTION__)); + goto err; + } + + bcmerror = 0; + +err: + return bcmerror; +} + +int dhd_bus_rxctl(struct dhd_bus *bus, uchar *msg, uint msglen) +{ + int timeleft; + uint rxlen = 0; + bool pending; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (bus->dhd->dongle_reset) + return -EIO; + + /* Wait until control frame is available */ + timeleft = dhd_os_ioctl_resp_wait(bus->dhd, &bus->rxlen, &pending); + if (timeleft == 0) { + DHD_ERROR(("%s: resumed on timeout\n", __FUNCTION__)); + bus->ioct_resp.cmn_hdr.request_id = 0; + bus->ioct_resp.compl_hdr.status = 0xffff; + bus->rxlen = 0; + } + rxlen = bus->rxlen; + bcopy(&bus->ioct_resp, msg, sizeof(ioctl_comp_resp_msg_t)); + bus->rxlen = 0; + + if (rxlen) { + DHD_CTL(("%s: resumed on rxctl frame, got %d\n", __FUNCTION__, rxlen)); + } else if (timeleft == 0) { + DHD_ERROR(("%s: resumed on timeout\n", __FUNCTION__)); + } else if (pending == TRUE) { + DHD_CTL(("%s: canceled\n", __FUNCTION__)); + return -ERESTARTSYS; + } else { + DHD_CTL(("%s: resumed for unknown reason?\n", __FUNCTION__)); + } + if (timeleft == 0) { + bus->dhd->rxcnt_timeout++; + DHD_ERROR(("%s: rxcnt_timeout=%d\n", __FUNCTION__, bus->dhd->rxcnt_timeout)); + } + else + bus->dhd->rxcnt_timeout = 0; + + if (rxlen) + bus->dhd->rx_ctlpkts++; + else + bus->dhd->rx_ctlerrs++; + + if (bus->dhd->rxcnt_timeout >= MAX_CNTL_TX_TIMEOUT) + return -ETIMEDOUT; + + if (bus->dhd->dongle_trap_occured) + return -EREMOTEIO; + + return rxlen ? (int)rxlen : -EIO; + +} + +#define CONSOLE_LINE_MAX 192 + +#ifdef DHD_DEBUG +static int +dhdpcie_bus_readconsole(dhd_bus_t *bus) +{ + dhd_console_t *c = &bus->console; + uint8 line[CONSOLE_LINE_MAX], ch; + uint32 n, idx, addr; + int rv; + + /* Don't do anything until FWREADY updates console address */ + if (bus->console_addr == 0) + return -1; + + /* Read console log struct */ + addr = bus->console_addr + OFFSETOF(hnd_cons_t, log); + + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, (uint8 *)&c->log, sizeof(c->log))) < 0) + return rv; + + /* Allocate console buffer (one time only) */ + if (c->buf == NULL) { + c->bufsize = ltoh32(c->log.buf_size); + if ((c->buf = MALLOC(bus->dhd->osh, c->bufsize)) == NULL) + return BCME_NOMEM; + } + idx = ltoh32(c->log.idx); + + /* Protect against corrupt value */ + if (idx > c->bufsize) + return BCME_ERROR; + + /* Skip reading the console buffer if the index pointer has not moved */ + if (idx == c->last) + return BCME_OK; + + /* Read the console buffer */ + addr = ltoh32(c->log.buf); + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, c->buf, c->bufsize)) < 0) + return rv; + + while (c->last != idx) { + for (n = 0; n < CONSOLE_LINE_MAX - 2; n++) { + if (c->last == idx) { + /* This would output a partial line. Instead, back up + * the buffer pointer and output this line next time around. + */ + if (c->last >= n) + c->last -= n; + else + c->last = c->bufsize - n; + goto break2; + } + ch = c->buf[c->last]; + c->last = (c->last + 1) % c->bufsize; + if (ch == '\n') + break; + line[n] = ch; + } + + if (n > 0) { + if (line[n - 1] == '\r') + n--; + line[n] = 0; + printf("CONSOLE: %s\n", line); + } + } +break2: + + return BCME_OK; +} + +static int +dhdpcie_checkdied(dhd_bus_t *bus, char *data, uint size) +{ + int bcmerror = 0; + uint msize = 512; + char *mbuffer = NULL; + char *console_buffer = NULL; + uint maxstrlen = 256; + char *str = NULL; + trap_t tr; + pciedev_shared_t *pciedev_shared = bus->pcie_sh; + struct bcmstrbuf strbuf; + uint32 console_ptr, console_size, console_index; + uint8 line[CONSOLE_LINE_MAX], ch; + uint32 n, i, addr; + int rv; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (DHD_NOCHECKDIED_ON()) + return 0; + + if (data == NULL) { + /* + * Called after a rx ctrl timeout. "data" is NULL. + * allocate memory to trace the trap or assert. + */ + size = msize; + mbuffer = data = MALLOC(bus->dhd->osh, msize); + + if (mbuffer == NULL) { + DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, msize)); + bcmerror = BCME_NOMEM; + goto done; + } + } + + if ((str = MALLOC(bus->dhd->osh, maxstrlen)) == NULL) { + DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, maxstrlen)); + bcmerror = BCME_NOMEM; + goto done; + } + + if ((bcmerror = dhdpcie_readshared(bus)) < 0) + goto done; + + bcm_binit(&strbuf, data, size); + + bcm_bprintf(&strbuf, "msgtrace address : 0x%08X\nconsole address : 0x%08X\n", + pciedev_shared->msgtrace_addr, pciedev_shared->console_addr); + + if ((pciedev_shared->flags & PCIE_SHARED_ASSERT_BUILT) == 0) { + /* NOTE: Misspelled assert is intentional - DO NOT FIX. + * (Avoids conflict with real asserts for programmatic parsing of output.) + */ + bcm_bprintf(&strbuf, "Assrt not built in dongle\n"); + } + + if ((bus->pcie_sh->flags & (PCIE_SHARED_ASSERT|PCIE_SHARED_TRAP)) == 0) { + /* NOTE: Misspelled assert is intentional - DO NOT FIX. + * (Avoids conflict with real asserts for programmatic parsing of output.) + */ + bcm_bprintf(&strbuf, "No trap%s in dongle", + (bus->pcie_sh->flags & PCIE_SHARED_ASSERT_BUILT) + ?"/assrt" :""); + } else { + if (bus->pcie_sh->flags & PCIE_SHARED_ASSERT) { + /* Download assert */ + bcm_bprintf(&strbuf, "Dongle assert"); + if (bus->pcie_sh->assert_exp_addr != 0) { + str[0] = '\0'; + if ((bcmerror = dhdpcie_bus_membytes(bus, FALSE, + bus->pcie_sh->assert_exp_addr, + (uint8 *)str, maxstrlen)) < 0) + goto done; + + str[maxstrlen - 1] = '\0'; + bcm_bprintf(&strbuf, " expr \"%s\"", str); + } + + if (bus->pcie_sh->assert_file_addr != 0) { + str[0] = '\0'; + if ((bcmerror = dhdpcie_bus_membytes(bus, FALSE, + bus->pcie_sh->assert_file_addr, + (uint8 *)str, maxstrlen)) < 0) + goto done; + + str[maxstrlen - 1] = '\0'; + bcm_bprintf(&strbuf, " file \"%s\"", str); + } + + bcm_bprintf(&strbuf, " line %d ", bus->pcie_sh->assert_line); + } + + if (bus->pcie_sh->flags & PCIE_SHARED_TRAP) { + bus->dhd->dongle_trap_occured = TRUE; + if ((bcmerror = dhdpcie_bus_membytes(bus, FALSE, + bus->pcie_sh->trap_addr, + (uint8*)&tr, sizeof(trap_t))) < 0) + goto done; + + bcm_bprintf(&strbuf, + "Dongle trap type 0x%x @ epc 0x%x, cpsr 0x%x, spsr 0x%x, sp 0x%x," + "lp 0x%x, rpc 0x%x Trap offset 0x%x, " + "r0 0x%x, r1 0x%x, r2 0x%x, r3 0x%x, " + "r4 0x%x, r5 0x%x, r6 0x%x, r7 0x%x\n\n", + ltoh32(tr.type), ltoh32(tr.epc), ltoh32(tr.cpsr), ltoh32(tr.spsr), + ltoh32(tr.r13), ltoh32(tr.r14), ltoh32(tr.pc), + ltoh32(bus->pcie_sh->trap_addr), + ltoh32(tr.r0), ltoh32(tr.r1), ltoh32(tr.r2), ltoh32(tr.r3), + ltoh32(tr.r4), ltoh32(tr.r5), ltoh32(tr.r6), ltoh32(tr.r7)); + + addr = bus->pcie_sh->console_addr + OFFSETOF(hnd_cons_t, log); + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, + (uint8 *)&console_ptr, sizeof(console_ptr))) < 0) + goto printbuf; + + addr = bus->pcie_sh->console_addr + OFFSETOF(hnd_cons_t, log.buf_size); + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, + (uint8 *)&console_size, sizeof(console_size))) < 0) + goto printbuf; + + addr = bus->pcie_sh->console_addr + OFFSETOF(hnd_cons_t, log.idx); + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, + (uint8 *)&console_index, sizeof(console_index))) < 0) + goto printbuf; + + console_ptr = ltoh32(console_ptr); + console_size = ltoh32(console_size); + console_index = ltoh32(console_index); + + if (console_size > CONSOLE_BUFFER_MAX || + !(console_buffer = MALLOC(bus->dhd->osh, console_size))) + goto printbuf; + + if ((rv = dhdpcie_bus_membytes(bus, FALSE, console_ptr, + (uint8 *)console_buffer, console_size)) < 0) + goto printbuf; + + for (i = 0, n = 0; i < console_size; i += n + 1) { + for (n = 0; n < CONSOLE_LINE_MAX - 2; n++) { + ch = console_buffer[(console_index + i + n) % console_size]; + if (ch == '\n') + break; + line[n] = ch; + } + + + if (n > 0) { + if (line[n - 1] == '\r') + n--; + line[n] = 0; + /* Don't use DHD_ERROR macro since we print + * a lot of information quickly. The macro + * will truncate a lot of the printfs + */ + + if (dhd_msg_level & DHD_ERROR_VAL) + printf("CONSOLE: %s\n", line); + } + } + } + } + +printbuf: + if (bus->pcie_sh->flags & (PCIE_SHARED_ASSERT | PCIE_SHARED_TRAP)) { + DHD_ERROR(("%s: %s\n", __FUNCTION__, strbuf.origbuf)); + } + +done: + if (mbuffer) + MFREE(bus->dhd->osh, mbuffer, msize); + if (str) + MFREE(bus->dhd->osh, str, maxstrlen); + + if (console_buffer) + MFREE(bus->dhd->osh, console_buffer, console_size); + + return bcmerror; +} +#endif /* DHD_DEBUG */ + + +/** + * Transfers bytes from host to dongle using pio mode. + * Parameter 'address' is a backplane address. + */ +static int +dhdpcie_bus_membytes(dhd_bus_t *bus, bool write, ulong address, uint8 *data, uint size) +{ + int bcmerror = 0; + uint dsize; + int detect_endian_flag = 0x01; + bool little_endian; + + /* Detect endianness. */ + little_endian = *(char *)&detect_endian_flag; + + /* In remap mode, adjust address beyond socram and redirect + * to devram at SOCDEVRAM_BP_ADDR since remap address > orig_ramsize + * is not backplane accessible + */ + + /* Determine initial transfer parameters */ + dsize = sizeof(uint64); + + /* Do the transfer(s) */ + if (write) { + while (size) { + if (size >= sizeof(uint64) && little_endian) + dhdpcie_bus_wtcm64(bus, address, *((uint64 *)data)); + else { + dsize = sizeof(uint8); + dhdpcie_bus_wtcm8(bus, address, *data); + } + + /* Adjust for next transfer (if any) */ + if ((size -= dsize)) { + data += dsize; + address += dsize; + } + } + } else { + while (size) { + if (size >= sizeof(uint64) && little_endian) + *(uint64 *)data = dhdpcie_bus_rtcm64(bus, address); + else { + dsize = sizeof(uint8); + *data = dhdpcie_bus_rtcm8(bus, address); + } + + /* Adjust for next transfer (if any) */ + if ((size -= dsize) > 0) { + data += dsize; + address += dsize; + } + } + } + return bcmerror; +} + +int BCMFASTPATH +dhd_bus_schedule_queue(struct dhd_bus *bus, uint16 flow_id, bool txs) +{ + flow_ring_node_t *flow_ring_node; + int ret = BCME_OK; + + DHD_INFO(("%s: flow_id is %d\n", __FUNCTION__, flow_id)); + /* ASSERT on flow_id */ + if (flow_id >= bus->max_sub_queues) { + DHD_ERROR(("%s: flow_id is invalid %d, max %d\n", __FUNCTION__, + flow_id, bus->max_sub_queues)); + return 0; + } + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flow_id); + + { + unsigned long flags; + void *txp = NULL; + flow_queue_t *queue; + + queue = &flow_ring_node->queue; /* queue associated with flow ring */ + + DHD_QUEUE_LOCK(queue->lock, flags); + + while ((txp = dhd_flow_queue_dequeue(bus->dhd, queue)) != NULL) { + PKTORPHAN(txp); + +#ifdef DHDTCPACK_SUPPRESS + dhd_tcpack_check_xmit(bus->dhd, txp); +#endif /* DHDTCPACK_SUPPRESS */ + /* Attempt to transfer packet over flow ring */ + + ret = dhd_prot_txdata(bus->dhd, txp, flow_ring_node->flow_info.ifindex); + if (ret != BCME_OK) { /* may not have resources in flow ring */ + DHD_INFO(("%s: Reinserrt %d\n", __FUNCTION__, ret)); + dhd_prot_txdata_write_flush(bus->dhd, flow_id, FALSE); + /* reinsert at head */ + dhd_flow_queue_reinsert(bus->dhd, queue, txp); + DHD_QUEUE_UNLOCK(queue->lock, flags); + + /* If we are able to requeue back, return success */ + return BCME_OK; + } + } + + dhd_prot_txdata_write_flush(bus->dhd, flow_id, FALSE); + + DHD_QUEUE_UNLOCK(queue->lock, flags); + } + + return ret; +} + +/* Send a data frame to the dongle. Callee disposes of txp. */ +int BCMFASTPATH +dhd_bus_txdata(struct dhd_bus *bus, void *txp, uint8 ifidx) +{ + unsigned long flags; + int ret = BCME_OK; + void *txp_pend = NULL; + if (!bus->txmode_push) { + uint16 flowid; + flow_queue_t *queue; + flow_ring_node_t *flow_ring_node; + if (!bus->dhd->flowid_allocator) { + DHD_ERROR(("%s: Flow ring not intited yet \n", __FUNCTION__)); + goto toss; + } + + flowid = DHD_PKTTAG_FLOWID((dhd_pkttag_fr_t*)PKTTAG(txp)); + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flowid); + + DHD_TRACE(("%s: pkt flowid %d, status %d active %d\n", + __FUNCTION__, flowid, flow_ring_node->status, + flow_ring_node->active)); + + if ((flowid >= bus->dhd->num_flow_rings) || + (!flow_ring_node->active) || + (flow_ring_node->status == FLOW_RING_STATUS_DELETE_PENDING)) { + DHD_INFO(("%s: Dropping pkt flowid %d, status %d active %d\n", + __FUNCTION__, flowid, flow_ring_node->status, + flow_ring_node->active)); + ret = BCME_ERROR; + goto toss; + } + + queue = &flow_ring_node->queue; /* queue associated with flow ring */ + + DHD_QUEUE_LOCK(queue->lock, flags); + + if ((ret = dhd_flow_queue_enqueue(bus->dhd, queue, txp)) != BCME_OK) + txp_pend = txp; + + DHD_QUEUE_UNLOCK(queue->lock, flags); + + if (flow_ring_node->status) { + DHD_INFO(("%s: Enq pkt flowid %d, status %d active %d\n", + __FUNCTION__, flowid, flow_ring_node->status, + flow_ring_node->active)); + if (txp_pend) { + txp = txp_pend; + goto toss; + } + return BCME_OK; + } + ret = dhd_bus_schedule_queue(bus, flowid, FALSE); + + /* If we have anything pending, try to push into q */ + if (txp_pend) { + DHD_QUEUE_LOCK(queue->lock, flags); + + if ((ret = dhd_flow_queue_enqueue(bus->dhd, queue, txp_pend)) != BCME_OK) { + DHD_QUEUE_UNLOCK(queue->lock, flags); + txp = txp_pend; + goto toss; + } + + DHD_QUEUE_UNLOCK(queue->lock, flags); + } + + return ret; + + } else { /* bus->txmode_push */ + return dhd_prot_txdata(bus->dhd, txp, ifidx); + } + +toss: + DHD_INFO(("%s: Toss %d\n", __FUNCTION__, ret)); + PKTCFREE(bus->dhd->osh, txp, TRUE); + return ret; +} + + +void +dhd_bus_stop_queue(struct dhd_bus *bus) +{ + dhd_txflowcontrol(bus->dhd, ALL_INTERFACES, ON); + bus->bus_flowctrl = TRUE; +} + +void +dhd_bus_start_queue(struct dhd_bus *bus) +{ + dhd_txflowcontrol(bus->dhd, ALL_INTERFACES, OFF); + bus->bus_flowctrl = TRUE; +} + +void +dhd_bus_update_retlen(dhd_bus_t *bus, uint32 retlen, uint32 pkt_id, uint16 status, + uint32 resp_len) +{ + bus->rxlen = retlen; + bus->ioct_resp.cmn_hdr.request_id = pkt_id; + bus->ioct_resp.compl_hdr.status = status; + bus->ioct_resp.resp_len = (uint16)resp_len; +} + +#if defined(DHD_DEBUG) +/* Device console input function */ +int dhd_bus_console_in(dhd_pub_t *dhd, uchar *msg, uint msglen) +{ + dhd_bus_t *bus = dhd->bus; + uint32 addr, val; + int rv; + /* Address could be zero if CONSOLE := 0 in dongle Makefile */ + if (bus->console_addr == 0) + return BCME_UNSUPPORTED; + + /* Don't allow input if dongle is in reset */ + if (bus->dhd->dongle_reset) { + dhd_os_sdunlock(bus->dhd); + return BCME_NOTREADY; + } + + /* Zero cbuf_index */ + addr = bus->console_addr + OFFSETOF(hnd_cons_t, cbuf_idx); + val = htol32(0); + if ((rv = dhdpcie_bus_membytes(bus, TRUE, addr, (uint8 *)&val, sizeof(val))) < 0) + goto done; + + /* Write message into cbuf */ + addr = bus->console_addr + OFFSETOF(hnd_cons_t, cbuf); + if ((rv = dhdpcie_bus_membytes(bus, TRUE, addr, (uint8 *)msg, msglen)) < 0) + goto done; + + /* Write length into vcons_in */ + addr = bus->console_addr + OFFSETOF(hnd_cons_t, vcons_in); + val = htol32(msglen); + if ((rv = dhdpcie_bus_membytes(bus, TRUE, addr, (uint8 *)&val, sizeof(val))) < 0) + goto done; + + /* generate an interurpt to dongle to indicate that it needs to process cons command */ + dhdpcie_send_mb_data(bus, H2D_HOST_CONS_INT); +done: + return rv; +} +#endif /* defined(DHD_DEBUG) */ + +/* Process rx frame , Send up the layer to netif */ +void BCMFASTPATH +dhd_bus_rx_frame(struct dhd_bus *bus, void* pkt, int ifidx, uint pkt_count) +{ + dhd_rx_frame(bus->dhd, ifidx, pkt, pkt_count, 0); +} + +/** 'offset' is a backplane address */ +void +dhdpcie_bus_wtcm8(dhd_bus_t *bus, ulong offset, uint8 data) +{ +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + *(volatile uint8 *)(bus->tcm + offset) = (uint8)data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +} + +uint8 +dhdpcie_bus_rtcm8(dhd_bus_t *bus, ulong offset) +{ + volatile uint8 data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +#ifdef BCM47XX_ACP_WAR + data = R_REG(bus->dhd->osh, (volatile uint8 *)(bus->tcm + offset)); +#else + data = *(volatile uint8 *)(bus->tcm + offset); +#endif +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return data; +} + +void +dhdpcie_bus_wtcm32(dhd_bus_t *bus, ulong offset, uint32 data) +{ +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + *(volatile uint32 *)(bus->tcm + offset) = (uint32)data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +} +void +dhdpcie_bus_wtcm16(dhd_bus_t *bus, ulong offset, uint16 data) +{ +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + *(volatile uint16 *)(bus->tcm + offset) = (uint16)data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +} +void +dhdpcie_bus_wtcm64(dhd_bus_t *bus, ulong offset, uint64 data) +{ +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + *(volatile uint64 *)(bus->tcm + offset) = (uint64)data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +} + +uint16 +dhdpcie_bus_rtcm16(dhd_bus_t *bus, ulong offset) +{ + volatile uint16 data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +#ifdef BCM47XX_ACP_WAR + data = R_REG(bus->dhd->osh, (volatile uint16 *)(bus->tcm + offset)); +#else + data = *(volatile uint16 *)(bus->tcm + offset); +#endif +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return data; +} + +uint32 +dhdpcie_bus_rtcm32(dhd_bus_t *bus, ulong offset) +{ + volatile uint32 data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +#ifdef BCM47XX_ACP_WAR + data = R_REG(bus->dhd->osh, (volatile uint32 *)(bus->tcm + offset)); +#else + data = *(volatile uint32 *)(bus->tcm + offset); +#endif +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return data; +} + +uint64 +dhdpcie_bus_rtcm64(dhd_bus_t *bus, ulong offset) +{ + volatile uint64 data; +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ +#ifdef BCM47XX_ACP_WAR + data = R_REG(bus->dhd->osh, (volatile uint64 *)(bus->tcm + offset)); +#else + data = *(volatile uint64 *)(bus->tcm + offset); +#endif +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return data; +} + +void +dhd_bus_cmn_writeshared(dhd_bus_t *bus, void * data, uint32 len, uint8 type, uint16 ringid) +{ + uint64 long_data; + ulong tcm_offset; + pciedev_shared_t *sh; + pciedev_shared_t *shmem = NULL; + + sh = (pciedev_shared_t*)bus->shared_addr; + + DHD_INFO(("%s: writing to msgbuf type %d, len %d\n", __FUNCTION__, type, len)); + + switch (type) { + case DNGL_TO_HOST_DMA_SCRATCH_BUFFER: + long_data = HTOL64(*(uint64 *)data); + tcm_offset = (ulong)&(sh->host_dma_scratch_buffer); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8*) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case DNGL_TO_HOST_DMA_SCRATCH_BUFFER_LEN : + tcm_offset = (ulong)&(sh->host_dma_scratch_buffer_len); + dhdpcie_bus_wtcm32(bus, tcm_offset, (uint32) HTOL32(*(uint32 *)data)); + prhex(__FUNCTION__, data, len); + break; + + case HOST_TO_DNGL_DMA_WRITEINDX_BUFFER: + /* ring_info_ptr stored in pcie_sh */ + shmem = (pciedev_shared_t *)bus->pcie_sh; + + long_data = HTOL64(*(uint64 *)data); + tcm_offset = (ulong)shmem->rings_info_ptr; + tcm_offset += OFFSETOF(ring_info_t, h2d_w_idx_hostaddr); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8*) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case HOST_TO_DNGL_DMA_READINDX_BUFFER: + /* ring_info_ptr stored in pcie_sh */ + shmem = (pciedev_shared_t *)bus->pcie_sh; + + long_data = HTOL64(*(uint64 *)data); + tcm_offset = (ulong)shmem->rings_info_ptr; + tcm_offset += OFFSETOF(ring_info_t, h2d_r_idx_hostaddr); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8*) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case DNGL_TO_HOST_DMA_WRITEINDX_BUFFER: + /* ring_info_ptr stored in pcie_sh */ + shmem = (pciedev_shared_t *)bus->pcie_sh; + + long_data = HTOL64(*(uint64 *)data); + tcm_offset = (ulong)shmem->rings_info_ptr; + tcm_offset += OFFSETOF(ring_info_t, d2h_w_idx_hostaddr); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8*) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case DNGL_TO_HOST_DMA_READINDX_BUFFER: + /* ring_info_ptr stored in pcie_sh */ + shmem = (pciedev_shared_t *)bus->pcie_sh; + + long_data = HTOL64(*(uint64 *)data); + tcm_offset = (ulong)shmem->rings_info_ptr; + tcm_offset += OFFSETOF(ring_info_t, d2h_r_idx_hostaddr); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8*) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case RING_LEN_ITEMS : + tcm_offset = bus->ring_sh[ringid].ring_mem_addr; + tcm_offset += OFFSETOF(ring_mem_t, len_items); + dhdpcie_bus_wtcm16(bus, tcm_offset, (uint16) HTOL16(*(uint16 *)data)); + break; + + case RING_MAX_ITEM : + tcm_offset = bus->ring_sh[ringid].ring_mem_addr; + tcm_offset += OFFSETOF(ring_mem_t, max_item); + dhdpcie_bus_wtcm16(bus, tcm_offset, (uint16) HTOL16(*(uint16 *)data)); + break; + + case RING_BUF_ADDR : + long_data = HTOL64(*(uint64 *)data); + tcm_offset = bus->ring_sh[ringid].ring_mem_addr; + tcm_offset += OFFSETOF(ring_mem_t, base_addr); + dhdpcie_bus_membytes(bus, TRUE, tcm_offset, (uint8 *) &long_data, len); + prhex(__FUNCTION__, data, len); + break; + + case RING_WRITE_PTR : + tcm_offset = bus->ring_sh[ringid].ring_state_w; + dhdpcie_bus_wtcm16(bus, tcm_offset, (uint16) HTOL16(*(uint16 *)data)); + break; + case RING_READ_PTR : + tcm_offset = bus->ring_sh[ringid].ring_state_r; + dhdpcie_bus_wtcm16(bus, tcm_offset, (uint16) HTOL16(*(uint16 *)data)); + break; + + case DTOH_MB_DATA: + dhdpcie_bus_wtcm32(bus, bus->d2h_mb_data_ptr_addr, + (uint32) HTOL32(*(uint32 *)data)); + break; + + case HTOD_MB_DATA: + dhdpcie_bus_wtcm32(bus, bus->h2d_mb_data_ptr_addr, + (uint32) HTOL32(*(uint32 *)data)); + break; + default: + break; + } +} + + +void +dhd_bus_cmn_readshared(dhd_bus_t *bus, void* data, uint8 type, uint16 ringid) +{ + pciedev_shared_t *sh; + ulong tcm_offset; + + sh = (pciedev_shared_t*)bus->shared_addr; + + switch (type) { + case RING_WRITE_PTR : + tcm_offset = bus->ring_sh[ringid].ring_state_w; + *(uint16*)data = LTOH16(dhdpcie_bus_rtcm16(bus, tcm_offset)); + break; + case RING_READ_PTR : + tcm_offset = bus->ring_sh[ringid].ring_state_r; + *(uint16*)data = LTOH16(dhdpcie_bus_rtcm16(bus, tcm_offset)); + break; + case TOTAL_LFRAG_PACKET_CNT : + *(uint16*)data = LTOH16(dhdpcie_bus_rtcm16(bus, + (ulong) &sh->total_lfrag_pkt_cnt)); + break; + case HTOD_MB_DATA: + *(uint32*)data = LTOH32(dhdpcie_bus_rtcm32(bus, bus->h2d_mb_data_ptr_addr)); + break; + case DTOH_MB_DATA: + *(uint32*)data = LTOH32(dhdpcie_bus_rtcm32(bus, bus->d2h_mb_data_ptr_addr)); + break; + case MAX_HOST_RXBUFS : + *(uint16*)data = LTOH16(dhdpcie_bus_rtcm16(bus, + (ulong) &sh->max_host_rxbufs)); + break; + default : + break; + } +} + +uint32 dhd_bus_get_sharedflags(dhd_bus_t *bus) +{ + return ((pciedev_shared_t*)bus->pcie_sh)->flags; +} + +void +dhd_bus_clearcounts(dhd_pub_t *dhdp) +{ +} + +int +dhd_bus_iovar_op(dhd_pub_t *dhdp, const char *name, + void *params, int plen, void *arg, int len, bool set) +{ + dhd_bus_t *bus = dhdp->bus; + const bcm_iovar_t *vi = NULL; + int bcmerror = 0; + int val_size; + uint32 actionid; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + ASSERT(name); + ASSERT(len >= 0); + + /* Get MUST have return space */ + ASSERT(set || (arg && len)); + + /* Set does NOT take qualifiers */ + ASSERT(!set || (!params && !plen)); + + DHD_INFO(("%s: %s %s, len %d plen %d\n", __FUNCTION__, + name, (set ? "set" : "get"), len, plen)); + + /* Look up var locally; if not found pass to host driver */ + if ((vi = bcm_iovar_lookup(dhdpcie_iovars, name)) == NULL) { + goto exit; + } + + + /* set up 'params' pointer in case this is a set command so that + * the convenience int and bool code can be common to set and get + */ + if (params == NULL) { + params = arg; + plen = len; + } + + if (vi->type == IOVT_VOID) + val_size = 0; + else if (vi->type == IOVT_BUFFER) + val_size = len; + else + /* all other types are integer sized */ + val_size = sizeof(int); + + actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid); + bcmerror = dhdpcie_bus_doiovar(bus, vi, actionid, name, params, plen, arg, len, val_size); + +exit: + return bcmerror; +} + +#ifdef BCM_BUZZZ +#include <bcm_buzzz.h> + +int dhd_buzzz_dump_cntrs3(char *p, uint32 *core, uint32 * ovhd, uint32 *log) +{ + int bytes = 0; + uint32 ctr, curr[3], prev[3], delta[3]; + + /* Compute elapsed counter values per counter event type */ + for (ctr = 0U; ctr < 3; ctr++) { + prev[ctr] = core[ctr]; + curr[ctr] = *log++; + core[ctr] = curr[ctr]; /* saved for next log */ + + if (curr[ctr] < prev[ctr]) + delta[ctr] = curr[ctr] + (~0U - prev[ctr]); + else + delta[ctr] = (curr[ctr] - prev[ctr]); + + /* Adjust for instrumentation overhead */ + if (delta[ctr] >= ovhd[ctr]) + delta[ctr] -= ovhd[ctr]; + else + delta[ctr] = 0; + + bytes += sprintf(p + bytes, "%12u ", delta[ctr]); + } + + return bytes; +} + +typedef union cm3_cnts { /* export this in bcm_buzzz.h */ + uint32 u32; + uint8 u8[4]; + struct { + uint8 cpicnt; + uint8 exccnt; + uint8 sleepcnt; + uint8 lsucnt; + }; +} cm3_cnts_t; + +int dhd_buzzz_dump_cntrs6(char *p, uint32 *core, uint32 * ovhd, uint32 *log) +{ + int bytes = 0; + + uint32 cyccnt, instrcnt; + cm3_cnts_t cm3_cnts; + uint8 foldcnt; + + { /* 32bit cyccnt */ + uint32 curr, prev, delta; + prev = core[0]; curr = *log++; core[0] = curr; + if (curr < prev) + delta = curr + (~0U - prev); + else + delta = (curr - prev); + if (delta >= ovhd[0]) + delta -= ovhd[0]; + else + delta = 0; + + bytes += sprintf(p + bytes, "%12u ", delta); + cyccnt = delta; + } + + { /* Extract the 4 cnts: cpi, exc, sleep and lsu */ + int i; + uint8 max8 = ~0; + cm3_cnts_t curr, prev, delta; + prev.u32 = core[1]; curr.u32 = * log++; core[1] = curr.u32; + for (i = 0; i < 4; i++) { + if (curr.u8[i] < prev.u8[i]) + delta.u8[i] = curr.u8[i] + (max8 - prev.u8[i]); + else + delta.u8[i] = (curr.u8[i] - prev.u8[i]); + if (delta.u8[i] >= ovhd[i + 1]) + delta.u8[i] -= ovhd[i + 1]; + else + delta.u8[i] = 0; + bytes += sprintf(p + bytes, "%4u ", delta.u8[i]); + } + cm3_cnts.u32 = delta.u32; + } + + { /* Extract the foldcnt from arg0 */ + uint8 curr, prev, delta, max8 = ~0; + buzzz_arg0_t arg0; arg0.u32 = *log; + prev = core[2]; curr = arg0.klog.cnt; core[2] = curr; + if (curr < prev) + delta = curr + (max8 - prev); + else + delta = (curr - prev); + if (delta >= ovhd[5]) + delta -= ovhd[5]; + else + delta = 0; + bytes += sprintf(p + bytes, "%4u ", delta); + foldcnt = delta; + } + + instrcnt = cyccnt - (cm3_cnts.u8[0] + cm3_cnts.u8[1] + cm3_cnts.u8[2] + + cm3_cnts.u8[3]) + foldcnt; + if (instrcnt > 0xFFFFFF00) + bytes += sprintf(p + bytes, "[%10s] ", "~"); + else + bytes += sprintf(p + bytes, "[%10u] ", instrcnt); + return bytes; +} + +int dhd_buzzz_dump_log(char * p, uint32 * core, uint32 * log, buzzz_t * buzzz) +{ + int bytes = 0; + buzzz_arg0_t arg0; + static uint8 * fmt[] = BUZZZ_FMT_STRINGS; + + if (buzzz->counters == 6) { + bytes += dhd_buzzz_dump_cntrs6(p, core, buzzz->ovhd, log); + log += 2; /* 32bit cyccnt + (4 x 8bit) CM3 */ + } else { + bytes += dhd_buzzz_dump_cntrs3(p, core, buzzz->ovhd, log); + log += 3; /* (3 x 32bit) CR4 */ + } + + /* Dump the logged arguments using the registered formats */ + arg0.u32 = *log++; + + switch (arg0.klog.args) { + case 0: + bytes += sprintf(p + bytes, fmt[arg0.klog.id]); + break; + case 1: + { + uint32 arg1 = *log++; + bytes += sprintf(p + bytes, fmt[arg0.klog.id], arg1); + break; + } + default: + printf("Maximum one argument supported\n"); + break; + } + bytes += sprintf(p + bytes, "\n"); + + return bytes; +} + +void dhd_buzzz_dump(buzzz_t * buzzz_p, void * buffer_p, char * p) +{ + int i; + uint32 total, part1, part2, log_sz, core[BUZZZ_COUNTERS_MAX]; + void * log; + + for (i = 0; i < BUZZZ_COUNTERS_MAX; i++) + core[i] = 0; + + log_sz = buzzz_p->log_sz; + + part1 = ((uint32)buzzz_p->cur - (uint32)buzzz_p->log) / log_sz; + + if (buzzz_p->wrap == TRUE) { + part2 = ((uint32)buzzz_p->end - (uint32)buzzz_p->cur) / log_sz; + total = (buzzz_p->buffer_sz - BUZZZ_LOGENTRY_MAXSZ) / log_sz; + } else { + part2 = 0U; + total = buzzz_p->count; + } + + if (total == 0U) { + printf("buzzz_dump total<%u> done\n", total); + return; + } else { + printf("buzzz_dump total<%u> : part2<%u> + part1<%u>\n", + total, part2, part1); + } + + if (part2) { /* with wrap */ + log = (void*)((size_t)buffer_p + (buzzz_p->cur - buzzz_p->log)); + while (part2--) { /* from cur to end : part2 */ + p[0] = '\0'; + dhd_buzzz_dump_log(p, core, (uint32 *)log, buzzz_p); + printf("%s", p); + log = (void*)((size_t)log + buzzz_p->log_sz); + } + } + + log = (void*)buffer_p; + while (part1--) { + p[0] = '\0'; + dhd_buzzz_dump_log(p, core, (uint32 *)log, buzzz_p); + printf("%s", p); + log = (void*)((size_t)log + buzzz_p->log_sz); + } + + printf("buzzz_dump done.\n"); +} + +int dhd_buzzz_dump_dngl(dhd_bus_t *bus) +{ + buzzz_t * buzzz_p = NULL; + void * buffer_p = NULL; + char * page_p = NULL; + pciedev_shared_t *sh; + int ret = 0; + + if (bus->dhd->busstate != DHD_BUS_DATA) { + return BCME_UNSUPPORTED; + } + if ((page_p = (char *)MALLOC(bus->dhd->osh, 4096)) == NULL) { + printf("Page memory allocation failure\n"); + goto done; + } + if ((buzzz_p = MALLOC(bus->dhd->osh, sizeof(buzzz_t))) == NULL) { + printf("Buzzz memory allocation failure\n"); + goto done; + } + + ret = dhdpcie_readshared(bus); + if (ret < 0) { + DHD_ERROR(("%s :Shared area read failed \n", __FUNCTION__)); + goto done; + } + + sh = bus->pcie_sh; + + DHD_INFO(("%s buzzz:%08x\n", __FUNCTION__, sh->buzzz)); + + if (sh->buzzz != 0U) { /* Fetch and display dongle BUZZZ Trace */ + dhdpcie_bus_membytes(bus, FALSE, (ulong)sh->buzzz, + (uint8 *)buzzz_p, sizeof(buzzz_t)); + if (buzzz_p->count == 0) { + printf("Empty dongle BUZZZ trace\n\n"); + goto done; + } + if (buzzz_p->counters != 3) { /* 3 counters for CR4 */ + printf("Counters<%u> mismatch\n", buzzz_p->counters); + goto done; + } + /* Allocate memory for trace buffer and format strings */ + buffer_p = MALLOC(bus->dhd->osh, buzzz_p->buffer_sz); + if (buffer_p == NULL) { + printf("Buffer memory allocation failure\n"); + goto done; + } + /* Fetch the trace and format strings */ + dhdpcie_bus_membytes(bus, FALSE, (uint32)buzzz_p->log, /* Trace */ + (uint8 *)buffer_p, buzzz_p->buffer_sz); + /* Process and display the trace using formatted output */ + printf("<#cycle> <#instruction> <#ctr3> <event information>\n"); + dhd_buzzz_dump(buzzz_p, buffer_p, page_p); + printf("----- End of dongle BUZZZ Trace -----\n\n"); + MFREE(bus->dhd->osh, buffer_p, buzzz_p->buffer_sz); buffer_p = NULL; + } + +done: + + if (page_p) MFREE(bus->dhd->osh, page_p, 4096); + if (buzzz_p) MFREE(bus->dhd->osh, buzzz_p, sizeof(buzzz_t)); + if (buffer_p) MFREE(bus->dhd->osh, buffer_p, buzzz_p->buffer_sz); + + return BCME_OK; +} +#endif /* BCM_BUZZZ */ + +#define PCIE_GEN2(sih) ((BUSTYPE((sih)->bustype) == PCI_BUS) && \ + ((sih)->buscoretype == PCIE2_CORE_ID)) + +static bool +pcie2_mdiosetblock(dhd_bus_t *bus, uint blk) +{ + uint mdiodata, mdioctrl, i = 0; + uint pcie_serdes_spinwait = 200; + + mdioctrl = MDIOCTL2_DIVISOR_VAL | (0x1F << MDIOCTL2_REGADDR_SHF); + mdiodata = (blk << MDIODATA2_DEVADDR_SHF) | MDIODATA2_DONE; + + si_corereg(bus->sih, bus->sih->buscoreidx, PCIE2_MDIO_CONTROL, ~0, mdioctrl); + si_corereg(bus->sih, bus->sih->buscoreidx, PCIE2_MDIO_WR_DATA, ~0, mdiodata); + + OSL_DELAY(10); + /* retry till the transaction is complete */ + while (i < pcie_serdes_spinwait) { + uint mdioctrl_read = si_corereg(bus->sih, bus->sih->buscoreidx, PCIE2_MDIO_WR_DATA, + 0, 0); + if (!(mdioctrl_read & MDIODATA2_DONE)) { + break; + } + OSL_DELAY(1000); + i++; + } + + if (i >= pcie_serdes_spinwait) { + DHD_ERROR(("pcie_mdiosetblock: timed out\n")); + return FALSE; + } + + return TRUE; +} + + +static int +pcie2_mdioop(dhd_bus_t *bus, uint physmedia, uint regaddr, bool write, uint *val, + bool slave_bypass) +{ + uint pcie_serdes_spinwait = 200, i = 0, mdio_ctrl; + uint32 reg32; + + pcie2_mdiosetblock(bus, physmedia); + + /* enable mdio access to SERDES */ + mdio_ctrl = MDIOCTL2_DIVISOR_VAL; + mdio_ctrl |= (regaddr << MDIOCTL2_REGADDR_SHF); + + if (slave_bypass) + mdio_ctrl |= MDIOCTL2_SLAVE_BYPASS; + + if (!write) + mdio_ctrl |= MDIOCTL2_READ; + + si_corereg(bus->sih, bus->sih->buscoreidx, PCIE2_MDIO_CONTROL, ~0, mdio_ctrl); + + if (write) { + reg32 = PCIE2_MDIO_WR_DATA; + si_corereg(bus->sih, bus->sih->buscoreidx, PCIE2_MDIO_WR_DATA, ~0, + *val | MDIODATA2_DONE); + } + else + reg32 = PCIE2_MDIO_RD_DATA; + + /* retry till the transaction is complete */ + while (i < pcie_serdes_spinwait) { + uint done_val = si_corereg(bus->sih, bus->sih->buscoreidx, reg32, 0, 0); + if (!(done_val & MDIODATA2_DONE)) { + if (!write) { + *val = si_corereg(bus->sih, bus->sih->buscoreidx, + PCIE2_MDIO_RD_DATA, 0, 0); + *val = *val & MDIODATA2_MASK; + } + return 0; + } + OSL_DELAY(1000); + i++; + } + return -1; +} + +int +dhd_bus_devreset(dhd_pub_t *dhdp, uint8 flag) +{ + dhd_bus_t *bus = dhdp->bus; + int bcmerror = 0; +#ifdef CONFIG_ARCH_MSM + int retry = POWERUP_MAX_RETRY; +#endif /* CONFIG_ARCH_MSM */ + + if (dhd_download_fw_on_driverload) { + bcmerror = dhd_bus_start(dhdp); + } else { + if (flag == TRUE) { /* Turn off WLAN */ + /* Removing Power */ + DHD_ERROR(("%s: == Power OFF ==\n", __FUNCTION__)); + bus->dhd->up = FALSE; + if (bus->dhd->busstate != DHD_BUS_DOWN) { + dhd_prot_clear(dhdp); + dhd_os_wd_timer(dhdp, 0); + dhd_bus_stop(bus, TRUE); +#ifdef CONFIG_ARCH_MSM + dhd_bus_release_dongle(bus); +#endif /* CONFIG_ARCH_MSM */ + dhdpcie_bus_free_resource(bus); + bcmerror = dhdpcie_bus_disable_device(bus); + if (bcmerror) { + DHD_ERROR(("%s: dhdpcie_bus_disable_device: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } +#ifdef CONFIG_ARCH_MSM + bcmerror = dhdpcie_bus_clock_stop(bus); + if (bcmerror) { + DHD_ERROR(("%s: host clock stop failed: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } +#endif /* CONFIG_ARCH_MSM */ + bus->dhd->busstate = DHD_BUS_DOWN; + } else { + dhd_prot_clear(dhdp); +#ifdef CONFIG_ARCH_MSM + dhd_bus_release_dongle(bus); +#endif /* CONFIG_ARCH_MSM */ + dhdpcie_bus_free_resource(bus); + bcmerror = dhdpcie_bus_disable_device(bus); + if (bcmerror) { + DHD_ERROR(("%s: dhdpcie_bus_disable_device: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } + +#ifdef CONFIG_ARCH_MSM + bcmerror = dhdpcie_bus_clock_stop(bus); + if (bcmerror) { + DHD_ERROR(("%s: host clock stop failed: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } +#endif /* CONFIG_ARCH_MSM */ + } + + bus->dhd->dongle_reset = TRUE; + DHD_ERROR(("%s: WLAN OFF Done\n", __FUNCTION__)); + + } else { /* Turn on WLAN */ + if (bus->dhd->busstate == DHD_BUS_DOWN) { + /* Powering On */ + DHD_ERROR(("%s: == Power ON ==\n", __FUNCTION__)); +#ifdef CONFIG_ARCH_MSM + while (retry--) { + bcmerror = dhdpcie_bus_clock_start(bus); + if (!bcmerror) { + DHD_ERROR(("%s: dhdpcie_bus_clock_start OK\n", + __FUNCTION__)); + break; + } + else + OSL_SLEEP(10); + } + + if (bcmerror && !retry) { + DHD_ERROR(("%s: host pcie clock enable failed: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } +#endif /* CONFIG_ARCH_MSM */ + bcmerror = dhdpcie_bus_enable_device(bus); + if (bcmerror) { + DHD_ERROR(("%s: host configuration restore failed: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } + + bcmerror = dhdpcie_bus_alloc_resource(bus); + if (bcmerror) { + DHD_ERROR(("%s: dhdpcie_bus_resource_alloc failed: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } + + bcmerror = dhdpcie_bus_dongle_attach(bus); + if (bcmerror) { + DHD_ERROR(("%s: dhdpcie_bus_dongle_attach: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } + + bus->dhd->dongle_reset = FALSE; + + bcmerror = dhd_bus_start(dhdp); + if (bcmerror) { + DHD_ERROR(("%s: dhd_bus_start: %d\n", + __FUNCTION__, bcmerror)); + goto done; + } + + bus->dhd->up = TRUE; + DHD_ERROR(("%s: WLAN Power On Done\n", __FUNCTION__)); + } else { + DHD_ERROR(("%s: what should we do here\n", __FUNCTION__)); + goto done; + } + } + } +done: + if (bcmerror) + bus->dhd->busstate = DHD_BUS_DOWN; + + return bcmerror; +} + +static int +dhdpcie_bus_doiovar(dhd_bus_t *bus, const bcm_iovar_t *vi, uint32 actionid, const char *name, + void *params, int plen, void *arg, int len, int val_size) +{ + int bcmerror = 0; + int32 int_val = 0; + int32 int_val2 = 0; + int32 int_val3 = 0; + bool bool_val = 0; + + DHD_TRACE(("%s: Enter, action %d name %s params %p plen %d arg %p len %d val_size %d\n", + __FUNCTION__, actionid, name, params, plen, arg, len, val_size)); + + if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, IOV_ISSET(actionid))) != 0) + goto exit; + + if (plen >= (int)sizeof(int_val)) + bcopy(params, &int_val, sizeof(int_val)); + + if (plen >= (int)sizeof(int_val) * 2) + bcopy((void*)((uintptr)params + sizeof(int_val)), &int_val2, sizeof(int_val2)); + + if (plen >= (int)sizeof(int_val) * 3) + bcopy((void*)((uintptr)params + 2 * sizeof(int_val)), &int_val3, sizeof(int_val3)); + + bool_val = (int_val != 0) ? TRUE : FALSE; + + /* Check if dongle is in reset. If so, only allow DEVRESET iovars */ + if (bus->dhd->dongle_reset && !(actionid == IOV_SVAL(IOV_DEVRESET) || + actionid == IOV_GVAL(IOV_DEVRESET))) { + bcmerror = BCME_NOTREADY; + goto exit; + } + + switch (actionid) { + + + case IOV_SVAL(IOV_VARS): + bcmerror = dhdpcie_downloadvars(bus, arg, len); + break; + + case IOV_SVAL(IOV_PCIEREG): + si_corereg(bus->sih, bus->sih->buscoreidx, OFFSETOF(sbpcieregs_t, configaddr), ~0, + int_val); + si_corereg(bus->sih, bus->sih->buscoreidx, OFFSETOF(sbpcieregs_t, configdata), ~0, + int_val2); + break; + + case IOV_GVAL(IOV_PCIEREG): + si_corereg(bus->sih, bus->sih->buscoreidx, OFFSETOF(sbpcieregs_t, configaddr), ~0, + int_val); + int_val = si_corereg(bus->sih, bus->sih->buscoreidx, + OFFSETOF(sbpcieregs_t, configdata), 0, 0); + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_BAR0_SECWIN_REG): + { + uint32 cur_base, base; + uchar *bar0; + volatile uint32 *offset; + /* set the bar0 secondary window to this */ + /* write the register value */ + cur_base = dhdpcie_bus_cfg_read_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint)); + base = int_val & 0xFFFFF000; + dhdpcie_bus_cfg_write_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint32), base); + bar0 = (uchar *)bus->regs; + offset = (uint32 *)(bar0 + 0x4000 + (int_val & 0xFFF)); + int_val = *offset; + bcopy(&int_val, arg, val_size); + dhdpcie_bus_cfg_write_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint32), cur_base); + } + break; + case IOV_SVAL(IOV_BAR0_SECWIN_REG): + { + uint32 cur_base, base; + uchar *bar0; + volatile uint32 *offset; + /* set the bar0 secondary window to this */ + /* write the register value */ + cur_base = dhdpcie_bus_cfg_read_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint)); + base = int_val & 0xFFFFF000; + dhdpcie_bus_cfg_write_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint32), base); + bar0 = (uchar *)bus->regs; + offset = (uint32 *)(bar0 + 0x4000 + (int_val & 0xFFF)); + *offset = int_val2; + bcopy(&int_val2, arg, val_size); + dhdpcie_bus_cfg_write_dword(bus, PCIE2_BAR0_CORE2_WIN, sizeof(uint32), cur_base); + } + break; + + case IOV_SVAL(IOV_PCIECOREREG): + si_corereg(bus->sih, bus->sih->buscoreidx, int_val, ~0, int_val2); + break; + case IOV_GVAL(IOV_SBREG): + { + sdreg_t sdreg; + uint32 addr, coreidx; + + bcopy(params, &sdreg, sizeof(sdreg)); + + addr = sdreg.offset; + coreidx = (addr & 0xF000) >> 12; + + int_val = si_corereg(bus->sih, coreidx, (addr & 0xFFF), 0, 0); + bcopy(&int_val, arg, sizeof(int32)); + break; + } + + case IOV_SVAL(IOV_SBREG): + { + sdreg_t sdreg; + uint32 addr, coreidx; + + bcopy(params, &sdreg, sizeof(sdreg)); + + addr = sdreg.offset; + coreidx = (addr & 0xF000) >> 12; + + si_corereg(bus->sih, coreidx, (addr & 0xFFF), ~0, sdreg.value); + + break; + } + + case IOV_GVAL(IOV_PCIESERDESREG): + { + uint val; + if (!PCIE_GEN2(bus->sih)) { + DHD_ERROR(("supported only in pcie gen2\n")); + bcmerror = BCME_ERROR; + break; + } + if (!pcie2_mdioop(bus, int_val, int_val2, FALSE, &val, FALSE)) { + bcopy(&val, arg, sizeof(int32)); + } + else { + DHD_ERROR(("pcie2_mdioop failed.\n")); + bcmerror = BCME_ERROR; + } + break; + } + case IOV_SVAL(IOV_PCIESERDESREG): + if (!PCIE_GEN2(bus->sih)) { + DHD_ERROR(("supported only in pcie gen2\n")); + bcmerror = BCME_ERROR; + break; + } + if (pcie2_mdioop(bus, int_val, int_val2, TRUE, &int_val3, FALSE)) { + DHD_ERROR(("pcie2_mdioop failed.\n")); + bcmerror = BCME_ERROR; + } + break; + case IOV_GVAL(IOV_PCIECOREREG): + int_val = si_corereg(bus->sih, bus->sih->buscoreidx, int_val, 0, 0); + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_PCIECFGREG): + OSL_PCI_WRITE_CONFIG(bus->osh, int_val, 4, int_val2); + break; + + case IOV_GVAL(IOV_PCIECFGREG): + int_val = OSL_PCI_READ_CONFIG(bus->osh, int_val, 4); + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_PCIE_LPBK): + bcmerror = dhdpcie_bus_lpback_req(bus, int_val); + break; + + case IOV_SVAL(IOV_PCIE_DMAXFER): + bcmerror = dhdpcie_bus_dmaxfer_req(bus, int_val, int_val2, int_val3); + break; + + case IOV_GVAL(IOV_PCIE_SUSPEND): + int_val = (bus->dhd->busstate == DHD_BUS_SUSPEND) ? 1 : 0; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_PCIE_SUSPEND): + dhdpcie_bus_suspend(bus, bool_val); + break; + + case IOV_GVAL(IOV_MEMSIZE): + int_val = (int32)bus->ramsize; + bcopy(&int_val, arg, val_size); + break; + case IOV_SVAL(IOV_MEMBYTES): + case IOV_GVAL(IOV_MEMBYTES): + { + uint32 address; /* absolute backplane address */ + uint size, dsize; + uint8 *data; + + bool set = (actionid == IOV_SVAL(IOV_MEMBYTES)); + + ASSERT(plen >= 2*sizeof(int)); + + address = (uint32)int_val; + bcopy((char *)params + sizeof(int_val), &int_val, sizeof(int_val)); + size = (uint)int_val; + + /* Do some validation */ + dsize = set ? plen - (2 * sizeof(int)) : len; + if (dsize < size) { + DHD_ERROR(("%s: error on %s membytes, addr 0x%08x size %d dsize %d\n", + __FUNCTION__, (set ? "set" : "get"), address, size, dsize)); + bcmerror = BCME_BADARG; + break; + } + + DHD_INFO(("%s: Request to %s %d bytes at address 0x%08x\n dsize %d ", __FUNCTION__, + (set ? "write" : "read"), size, address, dsize)); + + /* check if CR4 */ + if (si_setcore(bus->sih, ARMCR4_CORE_ID, 0)) { + /* if address is 0, store the reset instruction to be written in 0 */ + if (set && address == bus->dongle_ram_base) { + bus->resetinstr = *(((uint32*)params) + 2); + } + } else { + /* If we know about SOCRAM, check for a fit */ + if ((bus->orig_ramsize) && + ((address > bus->orig_ramsize) || (address + size > bus->orig_ramsize))) + { + uint8 enable, protect, remap; + si_socdevram(bus->sih, FALSE, &enable, &protect, &remap); + if (!enable || protect) { + DHD_ERROR(("%s: ramsize 0x%08x doesn't have %d bytes at 0x%08x\n", + __FUNCTION__, bus->orig_ramsize, size, address)); + DHD_ERROR(("%s: socram enable %d, protect %d\n", + __FUNCTION__, enable, protect)); + bcmerror = BCME_BADARG; + break; + } + + if (!REMAP_ENAB(bus) && (address >= SOCDEVRAM_ARM_ADDR)) { + uint32 devramsize = si_socdevram_size(bus->sih); + if ((address < SOCDEVRAM_ARM_ADDR) || + (address + size > (SOCDEVRAM_ARM_ADDR + devramsize))) { + DHD_ERROR(("%s: bad address 0x%08x, size 0x%08x\n", + __FUNCTION__, address, size)); + DHD_ERROR(("%s: socram range 0x%08x,size 0x%08x\n", + __FUNCTION__, SOCDEVRAM_ARM_ADDR, devramsize)); + bcmerror = BCME_BADARG; + break; + } + /* move it such that address is real now */ + address -= SOCDEVRAM_ARM_ADDR; + address += SOCDEVRAM_BP_ADDR; + DHD_INFO(("%s: Request to %s %d bytes @ Mapped address 0x%08x\n", + __FUNCTION__, (set ? "write" : "read"), size, address)); + } else if (REMAP_ENAB(bus) && REMAP_ISADDR(bus, address) && remap) { + /* Can not access remap region while devram remap bit is set + * ROM content would be returned in this case + */ + DHD_ERROR(("%s: Need to disable remap for address 0x%08x\n", + __FUNCTION__, address)); + bcmerror = BCME_ERROR; + break; + } + } + } + + /* Generate the actual data pointer */ + data = set ? (uint8*)params + 2 * sizeof(int): (uint8*)arg; + + /* Call to do the transfer */ + bcmerror = dhdpcie_bus_membytes(bus, set, address, data, size); + + break; + } + +#ifdef BCM_BUZZZ + case IOV_GVAL(IOV_BUZZZ_DUMP): + bcmerror = dhd_buzzz_dump_dngl(bus); + break; +#endif /* BCM_BUZZZ */ + + case IOV_SVAL(IOV_SET_DOWNLOAD_STATE): + bcmerror = dhdpcie_bus_download_state(bus, bool_val); + break; + + case IOV_GVAL(IOV_RAMSIZE): + int_val = (int32)bus->ramsize; + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_RAMSTART): + int_val = (int32)bus->dongle_ram_base; + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_CC_NVMSHADOW): + { + struct bcmstrbuf dump_b; + + bcm_binit(&dump_b, arg, len); + bcmerror = dhdpcie_cc_nvmshadow(bus, &dump_b); + break; + } + + case IOV_GVAL(IOV_SLEEP_ALLOWED): + bool_val = bus->sleep_allowed; + bcopy(&bool_val, arg, val_size); + break; + + case IOV_SVAL(IOV_SLEEP_ALLOWED): + bus->sleep_allowed = bool_val; + break; + + case IOV_GVAL(IOV_DONGLEISOLATION): + int_val = bus->dhd->dongle_isolation; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_DONGLEISOLATION): + bus->dhd->dongle_isolation = bool_val; + break; + + case IOV_GVAL(IOV_LTRSLEEPON_UNLOOAD): + int_val = bus->ltrsleep_on_unload; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_LTRSLEEPON_UNLOOAD): + bus->ltrsleep_on_unload = bool_val; + break; + + case IOV_GVAL(IOV_DUMP_RINGUPD_BLOCK): + { + struct bcmstrbuf dump_b; + bcm_binit(&dump_b, arg, len); + bcmerror = dhd_prot_ringupd_dump(bus->dhd, &dump_b); + break; + } + case IOV_GVAL(IOV_DMA_RINGINDICES): + { int h2d_support, d2h_support; + + d2h_support = DMA_INDX_ENAB(bus->dhd->dma_d2h_ring_upd_support) ? 1 : 0; + h2d_support = DMA_INDX_ENAB(bus->dhd->dma_h2d_ring_upd_support) ? 1 : 0; + int_val = d2h_support | (h2d_support << 1); + bcopy(&int_val, arg, val_size); + break; + } + case IOV_SVAL(IOV_DMA_RINGINDICES): + /* Can change it only during initialization/FW download */ + if (bus->dhd->busstate == DHD_BUS_DOWN) { + if ((int_val > 3) || (int_val < 0)) { + DHD_ERROR(("Bad argument. Possible values: 0, 1, 2 & 3\n")); + bcmerror = BCME_BADARG; + } else { + bus->dhd->dma_d2h_ring_upd_support = (int_val & 1) ? TRUE : FALSE; + bus->dhd->dma_h2d_ring_upd_support = (int_val & 2) ? TRUE : FALSE; + } + } else { + DHD_ERROR(("%s: Can change only when bus down (before FW download)\n", + __FUNCTION__)); + bcmerror = BCME_NOTDOWN; + } + break; + + case IOV_GVAL(IOV_RX_METADATALEN): + int_val = dhd_prot_metadatalen_get(bus->dhd, TRUE); + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_RX_METADATALEN): + if (int_val > 64) { + bcmerror = BCME_BUFTOOLONG; + break; + } + dhd_prot_metadatalen_set(bus->dhd, int_val, TRUE); + break; + + case IOV_SVAL(IOV_TXP_THRESHOLD): + dhd_prot_txp_threshold(bus->dhd, TRUE, int_val); + break; + + case IOV_GVAL(IOV_TXP_THRESHOLD): + int_val = dhd_prot_txp_threshold(bus->dhd, FALSE, int_val); + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_DB1_FOR_MB): + if (int_val) + bus->db1_for_mb = TRUE; + else + bus->db1_for_mb = FALSE; + break; + + case IOV_GVAL(IOV_DB1_FOR_MB): + if (bus->db1_for_mb) + int_val = 1; + else + int_val = 0; + bcopy(&int_val, arg, val_size); + break; + + case IOV_GVAL(IOV_TX_METADATALEN): + int_val = dhd_prot_metadatalen_get(bus->dhd, FALSE); + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_TX_METADATALEN): + if (int_val > 64) { + bcmerror = BCME_BUFTOOLONG; + break; + } + dhd_prot_metadatalen_set(bus->dhd, int_val, FALSE); + break; + + case IOV_GVAL(IOV_FLOW_PRIO_MAP): + int_val = bus->dhd->flow_prio_map_type; + bcopy(&int_val, arg, val_size); + break; + + case IOV_SVAL(IOV_FLOW_PRIO_MAP): + int_val = (int32)dhd_update_flow_prio_map(bus->dhd, (uint8)int_val); + bcopy(&int_val, arg, val_size); + break; + + default: + bcmerror = BCME_UNSUPPORTED; + break; + } + +exit: + return bcmerror; +} + +/* Transfers bytes from host to dongle using pio mode */ +static int +dhdpcie_bus_lpback_req(struct dhd_bus *bus, uint32 len) +{ + if (bus->dhd == NULL) { + DHD_ERROR(("bus not inited\n")); + return 0; + } + if (bus->dhd->prot == NULL) { + DHD_ERROR(("prot is not inited\n")); + return 0; + } + if (bus->dhd->busstate != DHD_BUS_DATA) { + DHD_ERROR(("not in a readystate to LPBK is not inited\n")); + return 0; + } + dhdmsgbuf_lpbk_req(bus->dhd, len); + return 0; +} + +void +dhd_bus_set_suspend_resume(dhd_pub_t *dhdp, bool state) +{ + struct dhd_bus *bus = dhdp->bus; + if (bus) { + dhdpcie_bus_suspend(bus, state); + } +} + +int +dhdpcie_bus_suspend(struct dhd_bus *bus, bool state) +{ + + int timeleft; + bool pending; + int rc = 0; + + if (bus->dhd == NULL) { + DHD_ERROR(("bus not inited\n")); + return BCME_ERROR; + } + if (bus->dhd->prot == NULL) { + DHD_ERROR(("prot is not inited\n")); + return BCME_ERROR; + } + if (bus->dhd->busstate != DHD_BUS_DATA && bus->dhd->busstate != DHD_BUS_SUSPEND) { + DHD_ERROR(("not in a readystate to LPBK is not inited\n")); + return BCME_ERROR; + } + if (bus->dhd->dongle_reset) + return -EIO; + + if (state == (bus->dhd->busstate == DHD_BUS_SUSPEND)) /* Set to same state */ + return BCME_OK; + + if (state) { +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_set_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + bus->wait_for_d3_ack = 0; + DHD_OS_WAKE_LOCK_WAIVE(bus->dhd); + dhdpcie_send_mb_data(bus, H2D_HOST_D3_INFORM); + timeleft = dhd_os_ioctl_resp_wait(bus->dhd, &bus->wait_for_d3_ack, &pending); + DHD_OS_WAKE_LOCK_RESTORE(bus->dhd); + if (bus->wait_for_d3_ack) { + /* Got D3 Ack. Suspend the bus */ + rc = dhdpcie_pci_suspend_resume(bus->dev, state); + bus->dhd->busstate = DHD_BUS_SUSPEND; + } else if (timeleft == 0) { + DHD_ERROR(("%s: resumed on timeout\n", __FUNCTION__)); +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return -ETIMEDOUT; + } + bus->wait_for_d3_ack = 1; + } + else { + /* Resume */ + rc = dhdpcie_pci_suspend_resume(bus->dev, state); + bus->dhd->busstate = DHD_BUS_DATA; + + } +#ifdef EXYNOS5433_PCIE_WAR + exynos_pcie_clear_l1_exit(); +#endif /* EXYNOS5433_PCIE_WAR */ + return rc; +} + +/* Transfers bytes from host to dongle and to host again using DMA */ +static int +dhdpcie_bus_dmaxfer_req(struct dhd_bus *bus, uint32 len, uint32 srcdelay, uint32 destdelay) +{ + if (bus->dhd == NULL) { + DHD_ERROR(("bus not inited\n")); + return BCME_ERROR; + } + if (bus->dhd->prot == NULL) { + DHD_ERROR(("prot is not inited\n")); + return BCME_ERROR; + } + if (bus->dhd->busstate != DHD_BUS_DATA) { + DHD_ERROR(("not in a readystate to LPBK is not inited\n")); + return BCME_ERROR; + } + + if (len < 5 || len > 4194296) { + DHD_ERROR(("len is too small or too large\n")); + return BCME_ERROR; + } + return dhdmsgbuf_dmaxfer_req(bus->dhd, len, srcdelay, destdelay); +} + + + +static int +dhdpcie_bus_download_state(dhd_bus_t *bus, bool enter) +{ + int bcmerror = 0; + uint32 *cr4_regs; + + if (!bus->sih) + return BCME_ERROR; + /* To enter download state, disable ARM and reset SOCRAM. + * To exit download state, simply reset ARM (default is RAM boot). + */ + if (enter) { + bus->alp_only = TRUE; + + /* some chips (e.g. 43602) have two ARM cores, the CR4 is receives the firmware. */ + cr4_regs = si_setcore(bus->sih, ARMCR4_CORE_ID, 0); + + if (cr4_regs == NULL && !(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) && + !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + if (cr4_regs == NULL) { /* no CR4 present on chip */ + si_core_disable(bus->sih, 0); + + if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + si_core_reset(bus->sih, 0, 0); + + + /* Clear the top bit of memory */ + if (bus->ramsize) { + uint32 zeros = 0; + if (dhdpcie_bus_membytes(bus, TRUE, bus->ramsize - 4, + (uint8*)&zeros, 4) < 0) { + bcmerror = BCME_ERROR; + goto fail; + } + } + } else { + /* For CR4, + * Halt ARM + * Remove ARM reset + * Read RAM base address [0x18_0000] + * [next] Download firmware + * [done at else] Populate the reset vector + * [done at else] Remove ARM halt + */ + /* Halt ARM & remove reset */ + si_core_reset(bus->sih, SICF_CPUHALT, SICF_CPUHALT); + if (bus->sih->chip == BCM43602_CHIP_ID) { + W_REG(bus->pcie_mb_intr_osh, cr4_regs + ARMCR4REG_BANKIDX, 5); + W_REG(bus->pcie_mb_intr_osh, cr4_regs + ARMCR4REG_BANKPDA, 0); + W_REG(bus->pcie_mb_intr_osh, cr4_regs + ARMCR4REG_BANKIDX, 7); + W_REG(bus->pcie_mb_intr_osh, cr4_regs + ARMCR4REG_BANKPDA, 0); + } + /* reset last 4 bytes of RAM address. to be used for shared area */ + dhdpcie_init_shared_addr(bus); + } + } else { + if (!si_setcore(bus->sih, ARMCR4_CORE_ID, 0)) { + if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + if (!si_iscoreup(bus->sih)) { + DHD_ERROR(("%s: SOCRAM core is down after reset?\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + + /* Enable remap before ARM reset but after vars. + * No backplane access in remap mode + */ + + if (!si_setcore(bus->sih, PCMCIA_CORE_ID, 0) && + !si_setcore(bus->sih, SDIOD_CORE_ID, 0)) { + DHD_ERROR(("%s: Can't change back to SDIO core?\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + + if (!(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) && + !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + } else { + if (bus->sih->chip == BCM43602_CHIP_ID) { + /* Firmware crashes on SOCSRAM access when core is in reset */ + if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find SOCRAM core!\n", + __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + si_core_reset(bus->sih, 0, 0); + si_setcore(bus->sih, ARMCR4_CORE_ID, 0); + } + + /* write vars */ + if ((bcmerror = dhdpcie_bus_write_vars(bus))) { + DHD_ERROR(("%s: could not write vars to RAM\n", __FUNCTION__)); + goto fail; + } + + + /* switch back to arm core again */ + if (!(si_setcore(bus->sih, ARMCR4_CORE_ID, 0))) { + DHD_ERROR(("%s: Failed to find ARM CR4 core!\n", __FUNCTION__)); + bcmerror = BCME_ERROR; + goto fail; + } + + /* write address 0 with reset instruction */ + bcmerror = dhdpcie_bus_membytes(bus, TRUE, 0, + (uint8 *)&bus->resetinstr, sizeof(bus->resetinstr)); + + /* now remove reset and halt and continue to run CR4 */ + } + + si_core_reset(bus->sih, 0, 0); + + /* Allow HT Clock now that the ARM is running. */ + bus->alp_only = FALSE; + + bus->dhd->busstate = DHD_BUS_LOAD; + } + +fail: + /* Always return to PCIE core */ + si_setcore(bus->sih, PCIE2_CORE_ID, 0); + + return bcmerror; +} + +static int +dhdpcie_bus_write_vars(dhd_bus_t *bus) +{ + int bcmerror = 0; + uint32 varsize, phys_size; + uint32 varaddr; + uint8 *vbuffer; + uint32 varsizew; +#ifdef DHD_DEBUG + uint8 *nvram_ularray; +#endif /* DHD_DEBUG */ + + /* Even if there are no vars are to be written, we still need to set the ramsize. */ + varsize = bus->varsz ? ROUNDUP(bus->varsz, 4) : 0; + varaddr = (bus->ramsize - 4) - varsize; + + varaddr += bus->dongle_ram_base; + + if (bus->vars) { + + vbuffer = (uint8 *)MALLOC(bus->dhd->osh, varsize); + if (!vbuffer) + return BCME_NOMEM; + + bzero(vbuffer, varsize); + bcopy(bus->vars, vbuffer, bus->varsz); + /* Write the vars list */ + bcmerror = dhdpcie_bus_membytes(bus, TRUE, varaddr, vbuffer, varsize); + + /* Implement read back and verify later */ +#ifdef DHD_DEBUG + /* Verify NVRAM bytes */ + DHD_INFO(("Compare NVRAM dl & ul; varsize=%d\n", varsize)); + nvram_ularray = (uint8*)MALLOC(bus->dhd->osh, varsize); + if (!nvram_ularray) + return BCME_NOMEM; + + /* Upload image to verify downloaded contents. */ + memset(nvram_ularray, 0xaa, varsize); + + /* Read the vars list to temp buffer for comparison */ + bcmerror = dhdpcie_bus_membytes(bus, FALSE, varaddr, nvram_ularray, varsize); + if (bcmerror) { + DHD_ERROR(("%s: error %d on reading %d nvram bytes at 0x%08x\n", + __FUNCTION__, bcmerror, varsize, varaddr)); + } + + /* Compare the org NVRAM with the one read from RAM */ + if (memcmp(vbuffer, nvram_ularray, varsize)) { + DHD_ERROR(("%s: Downloaded NVRAM image is corrupted.\n", __FUNCTION__)); + } else + DHD_ERROR(("%s: Download, Upload and compare of NVRAM succeeded.\n", + __FUNCTION__)); + + MFREE(bus->dhd->osh, nvram_ularray, varsize); +#endif /* DHD_DEBUG */ + + MFREE(bus->dhd->osh, vbuffer, varsize); + } + + phys_size = REMAP_ENAB(bus) ? bus->ramsize : bus->orig_ramsize; + + phys_size += bus->dongle_ram_base; + + /* adjust to the user specified RAM */ + DHD_INFO(("Physical memory size: %d, usable memory size: %d\n", + phys_size, bus->ramsize)); + DHD_INFO(("Vars are at %d, orig varsize is %d\n", + varaddr, varsize)); + varsize = ((phys_size - 4) - varaddr); + + /* + * Determine the length token: + * Varsize, converted to words, in lower 16-bits, checksum in upper 16-bits. + */ + if (bcmerror) { + varsizew = 0; + bus->nvram_csm = varsizew; + } else { + varsizew = varsize / 4; + varsizew = (~varsizew << 16) | (varsizew & 0x0000FFFF); + bus->nvram_csm = varsizew; + varsizew = htol32(varsizew); + } + + DHD_INFO(("New varsize is %d, length token=0x%08x\n", varsize, varsizew)); + + /* Write the length token to the last word */ + bcmerror = dhdpcie_bus_membytes(bus, TRUE, (phys_size - 4), + (uint8*)&varsizew, 4); + + return bcmerror; +} + +int +dhdpcie_downloadvars(dhd_bus_t *bus, void *arg, int len) +{ + int bcmerror = BCME_OK; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + /* Basic sanity checks */ + if (bus->dhd->up) { + bcmerror = BCME_NOTDOWN; + goto err; + } + if (!len) { + bcmerror = BCME_BUFTOOSHORT; + goto err; + } + + /* Free the old ones and replace with passed variables */ + if (bus->vars) + MFREE(bus->dhd->osh, bus->vars, bus->varsz); + + bus->vars = MALLOC(bus->dhd->osh, len); + bus->varsz = bus->vars ? len : 0; + if (bus->vars == NULL) { + bcmerror = BCME_NOMEM; + goto err; + } + + /* Copy the passed variables, which should include the terminating double-null */ + bcopy(arg, bus->vars, bus->varsz); +err: + return bcmerror; +} + +/* Add bus dump output to a buffer */ +void dhd_bus_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf) +{ + uint16 flowid; + flow_ring_node_t *flow_ring_node; + + dhd_prot_print_info(dhdp, strbuf); + for (flowid = 0; flowid < dhdp->num_flow_rings; flowid++) { + flow_ring_node = DHD_FLOW_RING(dhdp, flowid); + if (flow_ring_node->active) { + bcm_bprintf(strbuf, "Flow:%d IF %d Prio %d Qlen %d ", + flow_ring_node->flowid, flow_ring_node->flow_info.ifindex, + flow_ring_node->flow_info.tid, flow_ring_node->queue.len); + dhd_prot_print_flow_ring(dhdp, flow_ring_node->prot_info, strbuf); + } + } +} + +static void +dhd_update_txflowrings(dhd_pub_t *dhd) +{ + dll_t *item, *next; + flow_ring_node_t *flow_ring_node; + struct dhd_bus *bus = dhd->bus; + + for (item = dll_head_p(&bus->const_flowring); + !dll_end(&bus->const_flowring, item); item = next) { + next = dll_next_p(item); + + flow_ring_node = dhd_constlist_to_flowring(item); + ASSERT(flow_ring_node->active); + dhd_prot_update_txflowring(dhd, flow_ring_node->flowid, flow_ring_node->prot_info); + } +} + + +/* Mailbox ringbell Function */ +static void +dhd_bus_gen_devmb_intr(struct dhd_bus *bus) +{ + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + DHD_ERROR(("mailbox communication not supported\n")); + return; + } + if (bus->db1_for_mb) { + /* this is a pcie core register, not the config regsiter */ + DHD_INFO(("writing a mail box interrupt to the device, through doorbell 1\n")); + si_corereg(bus->sih, bus->sih->buscoreidx, PCIH2D_DB1, ~0, 0x12345678); + } + else { + DHD_INFO(("writing a mail box interrupt to the device, through config space\n")); + dhdpcie_bus_cfg_write_dword(bus, PCISBMbx, 4, (1 << 0)); + dhdpcie_bus_cfg_write_dword(bus, PCISBMbx, 4, (1 << 0)); + } +} + +/* doorbell ring Function */ +void +dhd_bus_ringbell(struct dhd_bus *bus, uint32 value) +{ + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + si_corereg(bus->sih, bus->sih->buscoreidx, PCIMailBoxInt, PCIE_INTB, PCIE_INTB); + } else { + /* this is a pcie core register, not the config regsiter */ + DHD_INFO(("writing a door bell to the device\n")); + si_corereg(bus->sih, bus->sih->buscoreidx, PCIH2D_MailBox, ~0, 0x12345678); + } +} + +static void +dhd_bus_ringbell_fast(struct dhd_bus *bus, uint32 value) +{ + W_REG(bus->pcie_mb_intr_osh, bus->pcie_mb_intr_addr, value); +} + +static void +dhd_bus_ringbell_oldpcie(struct dhd_bus *bus, uint32 value) +{ + uint32 w; + w = (R_REG(bus->pcie_mb_intr_osh, bus->pcie_mb_intr_addr) & ~PCIE_INTB) | PCIE_INTB; + W_REG(bus->pcie_mb_intr_osh, bus->pcie_mb_intr_addr, w); +} + +dhd_mb_ring_t +dhd_bus_get_mbintr_fn(struct dhd_bus *bus) +{ + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + bus->pcie_mb_intr_addr = si_corereg_addr(bus->sih, bus->sih->buscoreidx, + PCIMailBoxInt); + if (bus->pcie_mb_intr_addr) { + bus->pcie_mb_intr_osh = si_osh(bus->sih); + return dhd_bus_ringbell_oldpcie; + } + } else { + bus->pcie_mb_intr_addr = si_corereg_addr(bus->sih, bus->sih->buscoreidx, + PCIH2D_MailBox); + if (bus->pcie_mb_intr_addr) { + bus->pcie_mb_intr_osh = si_osh(bus->sih); + return dhd_bus_ringbell_fast; + } + } + return dhd_bus_ringbell; +} + +bool BCMFASTPATH +dhd_bus_dpc(struct dhd_bus *bus) +{ + uint32 intstatus = 0; + uint32 newstatus = 0; + bool resched = FALSE; /* Flag indicating resched wanted */ + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (bus->dhd->busstate == DHD_BUS_DOWN) { + DHD_ERROR(("%s: Bus down, ret\n", __FUNCTION__)); + bus->intstatus = 0; + return 0; + } + + if (bus->dhd->busstate == DHD_BUS_SUSPEND) { + resched = TRUE; + DHD_ERROR(("%s : pcie is still in suspend state!!!\n", __FUNCTION__)); + OSL_DELAY(20 * 1000); /* 20ms */ + return resched; + } + + intstatus = bus->intstatus; + + if ((bus->sih->buscorerev == 6) || (bus->sih->buscorerev == 4) || + (bus->sih->buscorerev == 2)) { + newstatus = dhdpcie_bus_cfg_read_dword(bus, PCIIntstatus, 4); + dhdpcie_bus_cfg_write_dword(bus, PCIIntstatus, 4, newstatus); + /* Merge new bits with previous */ + intstatus |= newstatus; + bus->intstatus = 0; + if (intstatus & I_MB) { + dhdpcie_bus_process_mailbox_intr(bus, intstatus); + } + } else { + /* this is a PCIE core register..not a config register... */ + newstatus = si_corereg(bus->sih, bus->sih->buscoreidx, PCIMailBoxInt, 0, 0); + intstatus |= (newstatus & bus->def_intmask); + si_corereg(bus->sih, bus->sih->buscoreidx, PCIMailBoxInt, intstatus, intstatus); + if (intstatus & bus->def_intmask) { + dhdpcie_bus_process_mailbox_intr(bus, intstatus); + intstatus &= ~bus->def_intmask; + } + } + + dhdpcie_bus_intr_enable(bus); + return resched; + +} + + +static void +dhdpcie_send_mb_data(dhd_bus_t *bus, uint32 h2d_mb_data) +{ + uint32 cur_h2d_mb_data = 0; + + dhd_bus_cmn_readshared(bus, &cur_h2d_mb_data, HTOD_MB_DATA, 0); + + if (cur_h2d_mb_data != 0) { + uint32 i = 0; + DHD_INFO(("GRRRRRRR: MB transaction is already pending 0x%04x\n", cur_h2d_mb_data)); + while ((i++ < 100) && cur_h2d_mb_data) { + OSL_DELAY(10); + dhd_bus_cmn_readshared(bus, &cur_h2d_mb_data, HTOD_MB_DATA, 0); + } + if (i >= 100) + DHD_ERROR(("waited 1ms for the dngl to ack the previous mb transaction\n")); + } + + dhd_bus_cmn_writeshared(bus, &h2d_mb_data, sizeof(uint32), HTOD_MB_DATA, 0); + dhd_bus_gen_devmb_intr(bus); + + if (h2d_mb_data == H2D_HOST_D3_INFORM) + DHD_INFO_HW4(("%s: send H2D_HOST_D3_INFORM to dongle\n", __FUNCTION__)); +} + +static void +dhdpcie_handle_mb_data(dhd_bus_t *bus) +{ + uint32 d2h_mb_data = 0; + uint32 zero = 0; + dhd_bus_cmn_readshared(bus, &d2h_mb_data, DTOH_MB_DATA, 0); + if (!d2h_mb_data) + return; + + dhd_bus_cmn_writeshared(bus, &zero, sizeof(uint32), DTOH_MB_DATA, 0); + + DHD_INFO(("D2H_MB_DATA: 0x%04x\n", d2h_mb_data)); + if (d2h_mb_data & D2H_DEV_DS_ENTER_REQ) { + /* what should we do */ + DHD_INFO(("D2H_MB_DATA: DEEP SLEEP REQ\n")); + dhdpcie_send_mb_data(bus, H2D_HOST_DS_ACK); + DHD_INFO(("D2H_MB_DATA: sent DEEP SLEEP ACK\n")); + } + if (d2h_mb_data & D2H_DEV_DS_EXIT_NOTE) { + /* what should we do */ + DHD_INFO(("D2H_MB_DATA: DEEP SLEEP EXIT\n")); + } + if (d2h_mb_data & D2H_DEV_D3_ACK) { + /* what should we do */ + DHD_INFO_HW4(("%s D2H_MB_DATA: Received D3 ACK\n", __FUNCTION__)); + if (!bus->wait_for_d3_ack) { + bus->wait_for_d3_ack = 1; + dhd_os_ioctl_resp_wake(bus->dhd); + } + } + if (d2h_mb_data & D2H_DEV_FWHALT) { + DHD_INFO(("FW trap has happened\n")); +#ifdef DHD_DEBUG + dhdpcie_checkdied(bus, NULL, 0); +#endif + bus->dhd->busstate = DHD_BUS_DOWN; + } +} + +static void +dhdpcie_bus_process_mailbox_intr(dhd_bus_t *bus, uint32 intstatus) +{ + + if ((bus->sih->buscorerev == 2) || (bus->sih->buscorerev == 6) || + (bus->sih->buscorerev == 4)) { + /* Msg stream interrupt */ + if (intstatus & I_BIT1) { + dhdpci_bus_read_frames(bus); + } else if (intstatus & I_BIT0) { + /* do nothing for Now */ + } + } + else { + if (intstatus & (PCIE_MB_TOPCIE_FN0_0 | PCIE_MB_TOPCIE_FN0_1)) + dhdpcie_handle_mb_data(bus); + if (intstatus & PCIE_MB_D2H_MB_MASK) { + dhdpci_bus_read_frames(bus); + } + } +} + +/* Decode dongle to host message stream */ +static void +dhdpci_bus_read_frames(dhd_bus_t *bus) +{ + /* There may be frames in both ctrl buf and data buf; check ctrl buf first */ + DHD_PERIM_LOCK(bus->dhd); /* Take the perimeter lock */ + + dhd_prot_process_ctrlbuf(bus->dhd); + + /* update the flow ring cpls */ + dhd_update_txflowrings(bus->dhd); + + dhd_prot_process_msgbuf_txcpl(bus->dhd); + + dhd_prot_process_msgbuf_rxcpl(bus->dhd); + + DHD_PERIM_UNLOCK(bus->dhd); /* Release the perimeter lock */ +} + +static int +dhdpcie_readshared(dhd_bus_t *bus) +{ + uint32 addr = 0; + int rv, w_init, r_init; + uint32 shaddr = 0; + pciedev_shared_t *sh = bus->pcie_sh; + dhd_timeout_t tmo; + + shaddr = bus->dongle_ram_base + bus->ramsize - 4; + /* start a timer for 5 seconds */ + dhd_timeout_start(&tmo, MAX_READ_TIMEOUT); + + while (((addr == 0) || (addr == bus->nvram_csm)) && !dhd_timeout_expired(&tmo)) { + /* Read last word in memory to determine address of sdpcm_shared structure */ + addr = LTOH32(dhdpcie_bus_rtcm32(bus, shaddr)); + } + + if ((addr == 0) || (addr == bus->nvram_csm) || (addr < bus->dongle_ram_base) || + (addr > shaddr)) { + DHD_ERROR(("%s: address (0x%08x) of pciedev_shared invalid\n", + __FUNCTION__, addr)); + DHD_ERROR(("Waited %u usec, dongle is not ready\n", tmo.elapsed)); + return BCME_ERROR; + } else { + bus->shared_addr = (ulong)addr; + DHD_ERROR(("PCIe shared addr read took %u usec " + "before dongle is ready\n", tmo.elapsed)); + } + + /* Read hndrte_shared structure */ + if ((rv = dhdpcie_bus_membytes(bus, FALSE, addr, (uint8 *)sh, + sizeof(pciedev_shared_t))) < 0) { + DHD_ERROR(("Failed to read PCIe shared struct," + "size read %d < %d\n", rv, (int)sizeof(pciedev_shared_t))); + return rv; + } + + /* Endianness */ + sh->flags = ltoh32(sh->flags); + sh->trap_addr = ltoh32(sh->trap_addr); + sh->assert_exp_addr = ltoh32(sh->assert_exp_addr); + sh->assert_file_addr = ltoh32(sh->assert_file_addr); + sh->assert_line = ltoh32(sh->assert_line); + sh->console_addr = ltoh32(sh->console_addr); + sh->msgtrace_addr = ltoh32(sh->msgtrace_addr); + sh->dma_rxoffset = ltoh32(sh->dma_rxoffset); + sh->rings_info_ptr = ltoh32(sh->rings_info_ptr); + /* load bus console address */ + +#ifdef DHD_DEBUG + bus->console_addr = sh->console_addr; +#endif + + /* Read the dma rx offset */ + bus->dma_rxoffset = bus->pcie_sh->dma_rxoffset; + dhd_prot_rx_dataoffset(bus->dhd, bus->dma_rxoffset); + + DHD_ERROR(("DMA RX offset from shared Area %d\n", bus->dma_rxoffset)); + + if ((sh->flags & PCIE_SHARED_VERSION_MASK) > PCIE_SHARED_VERSION) { + DHD_ERROR(("%s: pcie_shared version %d in dhd " + "is older than pciedev_shared version %d in dongle\n", + __FUNCTION__, PCIE_SHARED_VERSION, + sh->flags & PCIE_SHARED_VERSION_MASK)); + return BCME_ERROR; + } + if ((sh->flags & PCIE_SHARED_VERSION_MASK) >= 4) { + if (sh->flags & PCIE_SHARED_TXPUSH_SPRT) { +#ifdef DHDTCPACK_SUPPRESS + /* Do not use tcpack suppress as packets don't stay in queue */ + dhd_tcpack_suppress_set(bus->dhd, TCPACK_SUP_OFF); +#endif + bus->txmode_push = TRUE; + } else + bus->txmode_push = FALSE; + } + DHD_ERROR(("bus->txmode_push is set to %d\n", bus->txmode_push)); + + /* Does the FW support DMA'ing r/w indices */ + if (sh->flags & PCIE_SHARED_DMA_INDEX) { + + DHD_ERROR(("%s: Host support DMAing indices: H2D:%d - D2H:%d. FW supports it\n", + __FUNCTION__, + (DMA_INDX_ENAB(bus->dhd->dma_h2d_ring_upd_support) ? 1 : 0), + (DMA_INDX_ENAB(bus->dhd->dma_d2h_ring_upd_support) ? 1 : 0))); + + } else if (DMA_INDX_ENAB(bus->dhd->dma_d2h_ring_upd_support) || + DMA_INDX_ENAB(bus->dhd->dma_h2d_ring_upd_support)) { + +#ifdef BCM_INDX_DMA + DHD_ERROR(("%s: Incompatible FW. FW does not support DMAing indices\n", + __FUNCTION__)); + return BCME_ERROR; +#endif + DHD_ERROR(("%s: Host supports DMAing indices but FW does not\n", + __FUNCTION__)); + bus->dhd->dma_d2h_ring_upd_support = FALSE; + bus->dhd->dma_h2d_ring_upd_support = FALSE; + } + + + /* get ring_info, ring_state and mb data ptrs and store the addresses in bus structure */ + { + ring_info_t ring_info; + + if ((rv = dhdpcie_bus_membytes(bus, FALSE, sh->rings_info_ptr, + (uint8 *)&ring_info, sizeof(ring_info_t))) < 0) + return rv; + + bus->h2d_mb_data_ptr_addr = ltoh32(sh->h2d_mb_data_ptr); + bus->d2h_mb_data_ptr_addr = ltoh32(sh->d2h_mb_data_ptr); + + + bus->max_sub_queues = ltoh16(ring_info.max_sub_queues); + + /* If both FW and Host support DMA'ing indices, allocate memory and notify FW + * The max_sub_queues is read from FW initialized ring_info + */ + if (DMA_INDX_ENAB(bus->dhd->dma_h2d_ring_upd_support)) { + w_init = dhd_prot_init_index_dma_block(bus->dhd, + HOST_TO_DNGL_DMA_WRITEINDX_BUFFER, + bus->max_sub_queues); + r_init = dhd_prot_init_index_dma_block(bus->dhd, + DNGL_TO_HOST_DMA_READINDX_BUFFER, + BCMPCIE_D2H_COMMON_MSGRINGS); + + if ((w_init != BCME_OK) || (r_init != BCME_OK)) { + DHD_ERROR(("%s: Failed to allocate memory for dma'ing h2d indices" + "Host will use w/r indices in TCM\n", + __FUNCTION__)); + bus->dhd->dma_h2d_ring_upd_support = FALSE; + } + } + + if (DMA_INDX_ENAB(bus->dhd->dma_d2h_ring_upd_support)) { + w_init = dhd_prot_init_index_dma_block(bus->dhd, + DNGL_TO_HOST_DMA_WRITEINDX_BUFFER, + BCMPCIE_D2H_COMMON_MSGRINGS); + r_init = dhd_prot_init_index_dma_block(bus->dhd, + HOST_TO_DNGL_DMA_READINDX_BUFFER, + bus->max_sub_queues); + + if ((w_init != BCME_OK) || (r_init != BCME_OK)) { + DHD_ERROR(("%s: Failed to allocate memory for dma'ing d2h indices" + "Host will use w/r indices in TCM\n", + __FUNCTION__)); + bus->dhd->dma_d2h_ring_upd_support = FALSE; + } + } + + /* read ringmem and ringstate ptrs from shared area and store in host variables */ + dhd_fillup_ring_sharedptr_info(bus, &ring_info); + + bcm_print_bytes("ring_info_raw", (uchar *)&ring_info, sizeof(ring_info_t)); + DHD_INFO(("ring_info\n")); + + DHD_ERROR(("max H2D queues %d\n", ltoh16(ring_info.max_sub_queues))); + + DHD_INFO(("mail box address\n")); + DHD_INFO(("h2d_mb_data_ptr_addr 0x%04x\n", bus->h2d_mb_data_ptr_addr)); + DHD_INFO(("d2h_mb_data_ptr_addr 0x%04x\n", bus->d2h_mb_data_ptr_addr)); + } + return BCME_OK; +} +/* Read ring mem and ring state ptr info from shared are in TCM */ +static void +dhd_fillup_ring_sharedptr_info(dhd_bus_t *bus, ring_info_t *ring_info) +{ + uint16 i = 0; + uint16 j = 0; + uint32 tcm_memloc; + uint32 d2h_w_idx_ptr, d2h_r_idx_ptr, h2d_w_idx_ptr, h2d_r_idx_ptr; + + /* Ring mem ptr info */ + /* Alloated in the order + H2D_MSGRING_CONTROL_SUBMIT 0 + H2D_MSGRING_RXPOST_SUBMIT 1 + D2H_MSGRING_CONTROL_COMPLETE 2 + D2H_MSGRING_TX_COMPLETE 3 + D2H_MSGRING_RX_COMPLETE 4 + TX_FLOW_RING 5 + */ + + { + /* ringmemptr holds start of the mem block address space */ + tcm_memloc = ltoh32(ring_info->ringmem_ptr); + + /* Find out ringmem ptr for each ring common ring */ + for (i = 0; i <= BCMPCIE_COMMON_MSGRING_MAX_ID; i++) { + bus->ring_sh[i].ring_mem_addr = tcm_memloc; + /* Update mem block */ + tcm_memloc = tcm_memloc + sizeof(ring_mem_t); + DHD_INFO(("ring id %d ring mem addr 0x%04x \n", + i, bus->ring_sh[i].ring_mem_addr)); + } + + /* Tx flow Ring */ + if (bus->txmode_push) { + bus->ring_sh[i].ring_mem_addr = tcm_memloc; + DHD_INFO(("TX ring ring id %d ring mem addr 0x%04x \n", + i, bus->ring_sh[i].ring_mem_addr)); + } + } + + /* Ring state mem ptr info */ + { + d2h_w_idx_ptr = ltoh32(ring_info->d2h_w_idx_ptr); + d2h_r_idx_ptr = ltoh32(ring_info->d2h_r_idx_ptr); + h2d_w_idx_ptr = ltoh32(ring_info->h2d_w_idx_ptr); + h2d_r_idx_ptr = ltoh32(ring_info->h2d_r_idx_ptr); + /* Store h2d common ring write/read pointers */ + for (i = 0; i < BCMPCIE_H2D_COMMON_MSGRINGS; i++) { + bus->ring_sh[i].ring_state_w = h2d_w_idx_ptr; + bus->ring_sh[i].ring_state_r = h2d_r_idx_ptr; + + /* update mem block */ + h2d_w_idx_ptr = h2d_w_idx_ptr + sizeof(uint32); + h2d_r_idx_ptr = h2d_r_idx_ptr + sizeof(uint32); + + DHD_INFO(("h2d w/r : idx %d write %x read %x \n", i, + bus->ring_sh[i].ring_state_w, bus->ring_sh[i].ring_state_r)); + } + /* Store d2h common ring write/read pointers */ + for (j = 0; j < BCMPCIE_D2H_COMMON_MSGRINGS; j++, i++) { + bus->ring_sh[i].ring_state_w = d2h_w_idx_ptr; + bus->ring_sh[i].ring_state_r = d2h_r_idx_ptr; + + /* update mem block */ + d2h_w_idx_ptr = d2h_w_idx_ptr + sizeof(uint32); + d2h_r_idx_ptr = d2h_r_idx_ptr + sizeof(uint32); + + DHD_INFO(("d2h w/r : idx %d write %x read %x \n", i, + bus->ring_sh[i].ring_state_w, bus->ring_sh[i].ring_state_r)); + } + + /* Store txflow ring write/read pointers */ + if (bus->txmode_push) { + bus->ring_sh[i].ring_state_w = h2d_w_idx_ptr; + bus->ring_sh[i].ring_state_r = h2d_r_idx_ptr; + + DHD_INFO(("txflow : idx %d write %x read %x \n", i, + bus->ring_sh[i].ring_state_w, bus->ring_sh[i].ring_state_r)); + } else { + for (j = 0; j < (bus->max_sub_queues - BCMPCIE_H2D_COMMON_MSGRINGS); + i++, j++) + { + bus->ring_sh[i].ring_state_w = h2d_w_idx_ptr; + bus->ring_sh[i].ring_state_r = h2d_r_idx_ptr; + + /* update mem block */ + h2d_w_idx_ptr = h2d_w_idx_ptr + sizeof(uint32); + h2d_r_idx_ptr = h2d_r_idx_ptr + sizeof(uint32); + + DHD_INFO(("FLOW Rings h2d w/r : idx %d write %x read %x \n", i, + bus->ring_sh[i].ring_state_w, + bus->ring_sh[i].ring_state_r)); + } + } + } +} +/* Initialize bus module: prepare for communication w/dongle */ +int dhd_bus_init(dhd_pub_t *dhdp, bool enforce_mutex) +{ + dhd_bus_t *bus = dhdp->bus; + int ret = 0; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + ASSERT(bus->dhd); + if (!bus->dhd) + return 0; + + /* Make sure we're talking to the core. */ + bus->reg = si_setcore(bus->sih, PCIE2_CORE_ID, 0); + ASSERT(bus->reg != NULL); + + /* before opening up bus for data transfer, check if shared are is intact */ + ret = dhdpcie_readshared(bus); + if (ret < 0) { + DHD_ERROR(("%s :Shared area read failed \n", __FUNCTION__)); + return ret; + } + + + /* Make sure we're talking to the core. */ + bus->reg = si_setcore(bus->sih, PCIE2_CORE_ID, 0); + ASSERT(bus->reg != NULL); + + /* Set bus state according to enable result */ + dhdp->busstate = DHD_BUS_DATA; + + /* Enable the interrupt after device is up */ + dhdpcie_bus_intr_enable(bus); + + /* bcmsdh_intr_unmask(bus->sdh); */ + + return ret; + +} + + +static void +dhdpcie_init_shared_addr(dhd_bus_t *bus) +{ + uint32 addr = 0; + uint32 val = 0; + addr = bus->dongle_ram_base + bus->ramsize - 4; + dhdpcie_bus_membytes(bus, TRUE, addr, (uint8 *)&val, sizeof(val)); +} + + +bool +dhdpcie_chipmatch(uint16 vendor, uint16 device) +{ + if (vendor != PCI_VENDOR_ID_BROADCOM) { + DHD_ERROR(("%s: Unsupported vendor %x device %x\n", __FUNCTION__, + vendor, device)); + return (-ENODEV); + } + + if ((device == BCM4350_D11AC_ID) || (device == BCM4350_D11AC2G_ID) || + (device == BCM4350_D11AC5G_ID) || BCM4350_CHIP(device)) + return 0; + + if ((device == BCM4354_D11AC_ID) || (device == BCM4354_D11AC2G_ID) || + (device == BCM4354_D11AC5G_ID) || (device == BCM4354_CHIP_ID)) + return 0; + + if ((device == BCM4356_D11AC_ID) || (device == BCM4356_D11AC2G_ID) || + (device == BCM4356_D11AC5G_ID) || (device == BCM4356_CHIP_ID)) + return 0; + + if ((device == BCM4345_D11AC_ID) || (device == BCM4345_D11AC2G_ID) || + (device == BCM4345_D11AC5G_ID) || (device == BCM4345_CHIP_ID)) + return 0; + + if ((device == BCM4335_D11AC_ID) || (device == BCM4335_D11AC2G_ID) || + (device == BCM4335_D11AC5G_ID) || (device == BCM4335_CHIP_ID)) + return 0; + + if ((device == BCM43602_D11AC_ID) || (device == BCM43602_D11AC2G_ID) || + (device == BCM43602_D11AC5G_ID) || (device == BCM43602_CHIP_ID)) + return 0; + + if ((device == BCM43569_D11AC_ID) || (device == BCM43569_D11AC2G_ID) || + (device == BCM43569_D11AC5G_ID) || (device == BCM43569_CHIP_ID)) + return 0; + + if ((device == BCM4358_D11AC_ID) || (device == BCM4358_D11AC2G_ID) || + (device == BCM4358_D11AC5G_ID) || (device == BCM4358_CHIP_ID)) + return 0; + + if ((device == BCM4349_D11AC_ID) || (device == BCM4349_D11AC2G_ID) || + (device == BCM4349_D11AC5G_ID) || (device == BCM4349_CHIP_ID)) + return 0; + if ((device == BCM4355_D11AC_ID) || (device == BCM4355_D11AC2G_ID) || + (device == BCM4355_D11AC5G_ID) || (device == BCM4355_CHIP_ID)) + return 0; + if ((device == BCM4359_D11AC_ID) || (device == BCM4359_D11AC2G_ID) || + (device == BCM4359_D11AC5G_ID) || (device == BCM4359_CHIP_ID)) + return 0; + + + DHD_ERROR(("%s: Unsupported vendor %x device %x\n", __FUNCTION__, vendor, device)); + return (-ENODEV); +} + + +/* + +Name: dhdpcie_cc_nvmshadow + +Description: +A shadow of OTP/SPROM exists in ChipCommon Region +betw. 0x800 and 0xBFF (Backplane Addr. 0x1800_0800 and 0x1800_0BFF). +Strapping option (SPROM vs. OTP), presence of OTP/SPROM and its size +can also be read from ChipCommon Registers. +*/ + +static int +dhdpcie_cc_nvmshadow(dhd_bus_t *bus, struct bcmstrbuf *b) +{ + uint16 dump_offset = 0; + uint32 dump_size = 0, otp_size = 0, sprom_size = 0; + + /* Table for 65nm OTP Size (in bits) */ + int otp_size_65nm[8] = {0, 2048, 4096, 8192, 4096, 6144, 512, 1024}; + + volatile uint16 *nvm_shadow; + + uint cur_coreid; + uint chipc_corerev; + chipcregs_t *chipcregs; + + + /* Save the current core */ + cur_coreid = si_coreid(bus->sih); + /* Switch to ChipC */ + chipcregs = (chipcregs_t *)si_setcore(bus->sih, CC_CORE_ID, 0); + chipc_corerev = si_corerev(bus->sih); + + /* Check ChipcommonCore Rev */ + if (chipc_corerev < 44) { + DHD_ERROR(("%s: ChipcommonCore Rev %d < 44\n", __FUNCTION__, chipc_corerev)); + return BCME_UNSUPPORTED; + } + + /* Check ChipID */ + if (((uint16)bus->sih->chip != BCM4350_CHIP_ID) && + ((uint16)bus->sih->chip != BCM4345_CHIP_ID)) { + DHD_ERROR(("%s: cc_nvmdump cmd. supported for 4350/4345 only\n", + __FUNCTION__)); + return BCME_UNSUPPORTED; + } + + /* Check if SRC_PRESENT in SpromCtrl(0x190 in ChipCommon Regs) is set */ + if (chipcregs->sromcontrol & SRC_PRESENT) { + /* SPROM Size: 1Kbits (0x0), 4Kbits (0x1), 16Kbits(0x2) */ + sprom_size = (1 << (2 * ((chipcregs->sromcontrol & SRC_SIZE_MASK) + >> SRC_SIZE_SHIFT))) * 1024; + bcm_bprintf(b, "\nSPROM Present (Size %d bits)\n", sprom_size); + } + + if (chipcregs->sromcontrol & SRC_OTPPRESENT) { + bcm_bprintf(b, "\nOTP Present"); + + if (((chipcregs->otplayout & OTPL_WRAP_TYPE_MASK) >> OTPL_WRAP_TYPE_SHIFT) + == OTPL_WRAP_TYPE_40NM) { + /* 40nm OTP: Size = (OtpSize + 1) * 1024 bits */ + otp_size = (((chipcregs->capabilities & CC_CAP_OTPSIZE) + >> CC_CAP_OTPSIZE_SHIFT) + 1) * 1024; + bcm_bprintf(b, "(Size %d bits)\n", otp_size); + } else { + /* This part is untested since newer chips have 40nm OTP */ + otp_size = otp_size_65nm[(chipcregs->capabilities & CC_CAP_OTPSIZE) + >> CC_CAP_OTPSIZE_SHIFT]; + bcm_bprintf(b, "(Size %d bits)\n", otp_size); + DHD_INFO(("%s: 65nm/130nm OTP Size not tested. \n", + __FUNCTION__)); + } + } + + if (((chipcregs->sromcontrol & SRC_PRESENT) == 0) && + ((chipcregs->capabilities & CC_CAP_OTPSIZE) == 0)) { + DHD_ERROR(("%s: SPROM and OTP could not be found \n", + __FUNCTION__)); + return BCME_NOTFOUND; + } + + /* Check the strapping option in SpromCtrl: Set = OTP otherwise SPROM */ + if ((chipcregs->sromcontrol & SRC_OTPSEL) && + (chipcregs->sromcontrol & SRC_OTPPRESENT)) { + + bcm_bprintf(b, "OTP Strap selected.\n" + "\nOTP Shadow in ChipCommon:\n"); + + dump_size = otp_size / 16 ; /* 16bit words */ + + } else if (((chipcregs->sromcontrol & SRC_OTPSEL) == 0) && + (chipcregs->sromcontrol & SRC_PRESENT)) { + + bcm_bprintf(b, "SPROM Strap selected\n" + "\nSPROM Shadow in ChipCommon:\n"); + + /* If SPROM > 8K only 8Kbits is mapped to ChipCommon (0x800 - 0xBFF) */ + /* dump_size in 16bit words */ + dump_size = sprom_size > 8 ? (8 * 1024) / 16 : sprom_size / 16; + } + else { + DHD_ERROR(("%s: NVM Shadow does not exist in ChipCommon\n", + __FUNCTION__)); + return BCME_NOTFOUND; + } + + if (bus->regs == NULL) { + DHD_ERROR(("ChipCommon Regs. not initialized\n")); + return BCME_NOTREADY; + } else { + bcm_bprintf(b, "\n OffSet:"); + + /* Point to the SPROM/OTP shadow in ChipCommon */ + nvm_shadow = chipcregs->sromotp; + + /* + * Read 16 bits / iteration. + * dump_size & dump_offset in 16-bit words + */ + while (dump_offset < dump_size) { + if (dump_offset % 2 == 0) + /* Print the offset in the shadow space in Bytes */ + bcm_bprintf(b, "\n 0x%04x", dump_offset * 2); + + bcm_bprintf(b, "\t0x%04x", *(nvm_shadow + dump_offset)); + dump_offset += 0x1; + } + } + + /* Switch back to the original core */ + si_setcore(bus->sih, cur_coreid, 0); + + return BCME_OK; +} + + +uint8 BCMFASTPATH +dhd_bus_is_txmode_push(dhd_bus_t *bus) +{ + return bus->txmode_push; +} + +void dhd_bus_clean_flow_ring(dhd_bus_t *bus, uint16 flowid) +{ + void *pkt; + flow_queue_t *queue; + flow_ring_node_t *flow_ring_node; + unsigned long flags; + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flowid); + ASSERT(flow_ring_node->flowid == flowid); + + queue = &flow_ring_node->queue; + + /* Call Flow ring clean up */ + dhd_prot_clean_flow_ring(bus->dhd, flow_ring_node->prot_info); + dhd_flowid_free(bus->dhd, flow_ring_node->flow_info.ifindex, + flow_ring_node->flowid); + + /* clean up BUS level info */ + DHD_QUEUE_LOCK(queue->lock, flags); + +#ifdef DHDTCPACK_SUPPRESS + /* Clean tcp_ack_info_tbl in order to prevent access to flushed pkt, + * when there is a newly coming packet from network stack. + */ + dhd_tcpack_info_tbl_clean(bus->dhd); +#endif /* DHDTCPACK_SUPPRESS */ + /* Flush all pending packets in the queue, if any */ + while ((pkt = dhd_flow_queue_dequeue(bus->dhd, queue)) != NULL) { + PKTFREE(bus->dhd->osh, pkt, TRUE); + } + ASSERT(flow_queue_empty(queue)); + + DHD_QUEUE_UNLOCK(queue->lock, flags); + + flow_ring_node->active = FALSE; + + dll_delete(&flow_ring_node->list); +} + +/* + * Allocate a Flow ring buffer, + * Init Ring buffer, + * Send Msg to device about flow ring creation +*/ +int +dhd_bus_flow_ring_create_request(dhd_bus_t *bus, void *arg) +{ + flow_ring_node_t *flow_ring_node = (flow_ring_node_t *)arg; + + DHD_INFO(("%s :Flow create\n", __FUNCTION__)); + + /* Send Msg to device about flow ring creation */ + dhd_prot_flow_ring_create(bus->dhd, flow_ring_node); + + flow_ring_node->status = FLOW_RING_STATUS_PENDING; + + dll_prepend(&bus->const_flowring, &flow_ring_node->list); + + return BCME_OK; +} + +void +dhd_bus_flow_ring_create_response(dhd_bus_t *bus, uint16 flowid, int32 status) +{ + flow_ring_node_t *flow_ring_node; + + DHD_INFO(("%s :Flow Response %d \n", __FUNCTION__, flowid)); + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flowid); + ASSERT(flow_ring_node->flowid == flowid); + + if (status != BCME_OK) { + DHD_ERROR(("%s Flow create Response failure error status = %d \n", + __FUNCTION__, status)); + /* Call Flow clean up */ + dhd_bus_clean_flow_ring(bus, flowid); + return; + } + + flow_ring_node->status = FLOW_RING_STATUS_OPEN; + + dhd_bus_schedule_queue(bus, flowid, FALSE); + + return; +} + +int +dhd_bus_flow_ring_delete_request(dhd_bus_t *bus, void *arg) +{ + void * pkt; + flow_queue_t *queue; + flow_ring_node_t *flow_ring_node; + unsigned long flags; + + DHD_INFO(("%s :Flow Delete\n", __FUNCTION__)); + + flow_ring_node = (flow_ring_node_t *)arg; + + if (flow_ring_node->status & FLOW_RING_STATUS_DELETE_PENDING) { + DHD_ERROR(("%s :Delete Pending\n", __FUNCTION__)); + return BCME_ERROR; + } + + queue = &flow_ring_node->queue; /* queue associated with flow ring */ + + DHD_QUEUE_LOCK(queue->lock, flags); + +#ifdef DHDTCPACK_SUPPRESS + /* Clean tcp_ack_info_tbl in order to prevent access to flushed pkt, + * when there is a newly coming packet from network stack. + */ + dhd_tcpack_info_tbl_clean(bus->dhd); +#endif /* DHDTCPACK_SUPPRESS */ + /* Flush all pending packets in the queue, if any */ + while ((pkt = dhd_flow_queue_dequeue(bus->dhd, queue)) != NULL) { + PKTFREE(bus->dhd->osh, pkt, TRUE); + } + ASSERT(flow_queue_empty(queue)); + + DHD_QUEUE_UNLOCK(queue->lock, flags); + + /* Send Msg to device about flow ring deletion */ + dhd_prot_flow_ring_delete(bus->dhd, flow_ring_node); + + flow_ring_node->status = FLOW_RING_STATUS_DELETE_PENDING; + return BCME_OK; +} + +void +dhd_bus_flow_ring_delete_response(dhd_bus_t *bus, uint16 flowid, uint32 status) +{ + flow_ring_node_t *flow_ring_node; + + DHD_INFO(("%s :Flow Delete Response %d \n", __FUNCTION__, flowid)); + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flowid); + ASSERT(flow_ring_node->flowid == flowid); + + if (status != BCME_OK) { + DHD_ERROR(("%s Flow Delete Response failure error status = %d \n", + __FUNCTION__, status)); + return; + } + /* Call Flow clean up */ + dhd_bus_clean_flow_ring(bus, flowid); + + flow_ring_node->status = FLOW_RING_STATUS_OPEN; + flow_ring_node->active = FALSE; + return; + +} + +int dhd_bus_flow_ring_flush_request(dhd_bus_t *bus, void *arg) +{ + void *pkt; + flow_queue_t *queue; + flow_ring_node_t *flow_ring_node; + unsigned long flags; + + DHD_INFO(("%s :Flow Delete\n", __FUNCTION__)); + + flow_ring_node = (flow_ring_node_t *)arg; + queue = &flow_ring_node->queue; /* queue associated with flow ring */ + + DHD_QUEUE_LOCK(queue->lock, flags); + +#ifdef DHDTCPACK_SUPPRESS + /* Clean tcp_ack_info_tbl in order to prevent access to flushed pkt, + * when there is a newly coming packet from network stack. + */ + dhd_tcpack_info_tbl_clean(bus->dhd); +#endif /* DHDTCPACK_SUPPRESS */ + /* Flush all pending packets in the queue, if any */ + while ((pkt = dhd_flow_queue_dequeue(bus->dhd, queue)) != NULL) { + PKTFREE(bus->dhd->osh, pkt, TRUE); + } + ASSERT(flow_queue_empty(queue)); + + DHD_QUEUE_UNLOCK(queue->lock, flags); + + /* Send Msg to device about flow ring flush */ + dhd_prot_flow_ring_flush(bus->dhd, flow_ring_node); + + flow_ring_node->status = FLOW_RING_STATUS_FLUSH_PENDING; + return BCME_OK; +} + +void +dhd_bus_flow_ring_flush_response(dhd_bus_t *bus, uint16 flowid, uint32 status) +{ + flow_ring_node_t *flow_ring_node; + + if (status != BCME_OK) { + DHD_ERROR(("%s Flow flush Response failure error status = %d \n", + __FUNCTION__, status)); + return; + } + + flow_ring_node = DHD_FLOW_RING(bus->dhd, flowid); + ASSERT(flow_ring_node->flowid == flowid); + + flow_ring_node->status = FLOW_RING_STATUS_OPEN; + return; +} + +uint32 +dhd_bus_max_h2d_queues(struct dhd_bus *bus, uint8 *txpush) +{ + if (bus->txmode_push) + *txpush = 1; + else + *txpush = 0; + return bus->max_sub_queues; +} + +int +dhdpcie_bus_clock_start(struct dhd_bus *bus) +{ + return dhdpcie_start_host_pcieclock(bus); +} + +int +dhdpcie_bus_clock_stop(struct dhd_bus *bus) +{ + return dhdpcie_stop_host_pcieclock(bus); +} + +int +dhdpcie_bus_disable_device(struct dhd_bus *bus) +{ + return dhdpcie_disable_device(bus); +} + +int +dhdpcie_bus_enable_device(struct dhd_bus *bus) +{ + return dhdpcie_enable_device(bus); +} + +int +dhdpcie_bus_alloc_resource(struct dhd_bus *bus) +{ + return dhdpcie_alloc_resource(bus); +} + +void +dhdpcie_bus_free_resource(struct dhd_bus *bus) +{ + dhdpcie_free_resource(bus); +} + +bool +dhdpcie_bus_dongle_attach(struct dhd_bus *bus) +{ + return dhdpcie_dongle_attach(bus); +} + +int +dhd_bus_release_dongle(struct dhd_bus *bus) +{ + bool dongle_isolation; + osl_t *osh; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (bus) { + osh = bus->osh; + ASSERT(osh); + + if (bus->dhd) { + dongle_isolation = bus->dhd->dongle_isolation; + dhdpcie_bus_release_dongle(bus, osh, dongle_isolation, TRUE); + } + } + + return 0; +} |