diff options
Diffstat (limited to 'drivers/char/mux_spi_hal/ipc_spi.h')
| -rw-r--r-- | drivers/char/mux_spi_hal/ipc_spi.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/char/mux_spi_hal/ipc_spi.h b/drivers/char/mux_spi_hal/ipc_spi.h new file mode 100644 index 00000000..99672618 --- /dev/null +++ b/drivers/char/mux_spi_hal/ipc_spi.h @@ -0,0 +1,147 @@ +/* + * linux/drivers/mmc/host/sdio_hal.h - Secure Digital Host Controller Interface driver + * + * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ +#ifndef __IPC_SPI_H +#define __IPC_SPI_H + +#include <linux/kfifo.h> +#include <linux/miscdevice.h> +#include <linux/wakelock.h> +#include <mach/modem_interface.h> + + +//#define SETUP_PACKET_SIZE (128) +#define MAX_RECEIVER_SIZE (8*1024) + +//#define SETUP_MAGIC 0x1a2b +#define DATA_MAGIC 0x3c4d +#define ACK_MAGIC 0x5e6f +//#define SETUP_ACK_MAGIC 0x789a +#define DATA_ACK_MAGIC 0x9abc +#define DUMMY_MAGIC 0x5a5a + +#define CP2AP_NOIRQ 0x0 +#define CP2AP_FALLING 0x1 +#define CP2AP_RASING 0x2 + +//#define REMOTE_ALIVE_STATUS 0x1 +//#define REMOTE_ASSERT_STATUS 0x2 + +typedef enum { + TYPE_ACK = 0x1, + TYPE_NAK, + TYPE_NAKALL, //if receive this ack , cancel the data you want to resend + TYPE_DATA, + TYPE_MAX +}packet_type; + +struct ack_packet { + u16 magic; + u16 checksum; + u16 type; + u16 dummy; + u32 seq_begin; + u32 seq_end; +}; + +// data packet type like below + +struct data_packet_header { + u16 magic; + u16 checksum; + union { + struct ack_packet ack; + }; + u32 seqnum; + u32 len; +}; + + +enum ipc_status { + IDLE_STATUS, + ACK_STATUS, + NAK_STATUS, + NAKALL_STATUS, + MAX_STATUS +}; + +struct frame_list { + struct list_head frame_list_head; + struct mutex list_mutex; + u32 counter; +}; + +struct ipc_transfer_frame { + u8* buf_ptr; + u32 buf_size; + u16 pos; + u16 flag; + u32 status; + u32 seq; + struct list_head link; +}; + + +struct ipc_transfer +{ + struct mutex transfer_mutex; + struct list_head frame_fifo; + struct ipc_transfer_frame* cur_frame_ptr; + u32 counter; +}; + +struct timer_info { + unsigned long long time; + u32 status; +}; + +struct ipc_spi_dev { + bool bneedrcv; + bool ipc_enable; + bool bneedread; + bool bneedsend; + u16 rx_ctl; // gpio control no irq: 0 , falling: 1, rasing: 2 + u16 rwctrl; /* read write controlled by mux */ + u16 rx_status; // rx status + u32 rx_seqnum; /* received num */ + u32 tx_seqnum; + u32 remote_status; + struct frame_list tx_free_lst; + struct ipc_transfer tx_transfer; + struct frame_list rx_free_lst; + struct frame_list rx_recv_lst; + struct ipc_transfer_frame* rx_curframe; + struct ipc_transfer_frame *tx_curframe; + wait_queue_head_t wait; + wait_queue_head_t rx_read_wait; + wait_queue_head_t tx_frame_wait; // tx frame wait + struct task_struct *task; + struct spi_device *spi; + struct miscdevice miscdev; + struct wake_lock wake_lock; + struct modemsts_chg modemsts; +#ifdef CONFIG_PM + bool bsuspend; +#endif + u32 irq_num; /* use for debug cp side irq num */ + u32 task_count; /* use for debug task run count*/ + u32 task_status; /* use for debug record the status of task */ + u32 rwnum; + u32 tx_irqennum; /* use for debug enable gpio num */ + u32 tx_irqdisnum; /* usefor debug disable gpio num */ + u32 ap_infocnt; + struct timer_info cp2ap[100]; + struct timer_info ap_info[100]; +}; + + + + +#endif /* __SDHCI_H */ |