diff options
Diffstat (limited to 'drivers/input/touchscreen/msg2138/mstar_drv_utility_adaption.c')
| -rw-r--r-- | drivers/input/touchscreen/msg2138/mstar_drv_utility_adaption.c | 405 |
1 files changed, 405 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/msg2138/mstar_drv_utility_adaption.c b/drivers/input/touchscreen/msg2138/mstar_drv_utility_adaption.c new file mode 100644 index 00000000..7a2b4738 --- /dev/null +++ b/drivers/input/touchscreen/msg2138/mstar_drv_utility_adaption.c @@ -0,0 +1,405 @@ +//////////////////////////////////////////////////////////////////////////////// +// +// Copyright (c) 2006-2012 MStar Semiconductor, Inc. +// All rights reserved. +// +// Unless otherwise stipulated in writing, any and all information contained +// herein regardless in any format shall remain the sole proprietary of +// MStar Semiconductor Inc. and be kept in strict confidence +// (??MStar Confidential Information??) by the recipient. +// Any unauthorized act including without limitation unauthorized disclosure, +// copying, use, reproduction, sale, distribution, modification, disassembling, +// reverse engineering and compiling of the contents of MStar Confidential +// Information is unlawful and strictly prohibited. MStar hereby reserves the +// rights to any and all damages, losses, costs and expenses resulting therefrom. +// +//////////////////////////////////////////////////////////////////////////////// + +/** + * + * @file mstar_drv_utility_adaption.c + * + * @brief This file defines the interface of touch screen + * + * @version v2.2.0.0 + * + */ + +//////////////////////////////////////////////////////////// +/// Included Files +//////////////////////////////////////////////////////////// +#include "mstar_drv_utility_adaption.h" + +//////////////////////////////////////////////////////////// +/// Data Types +//////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////// +/// Constant +//////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////// +/// Variables +//////////////////////////////////////////////////////////// +extern struct i2c_client *g_I2cClient; + +//////////////////////////////////////////////////////////// +/// Macro +//////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////// +/// Function Prototypes +//////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////// +/// Function Implementation +//////////////////////////////////////////////////////////// + + +#ifdef CONFIG_ENABLE_DMA_IIC +#include <linux/dma-mapping.h> +#include <linux/mm_types.h> +#include <linux/mm.h> +#include <asm/uaccess.h> +#include <asm/page.h> +#include <linux/vmalloc.h> + +static unsigned char *I2CDMABuf_va = NULL; +static volatile unsigned int I2CDMABuf_pa = NULL; + +void DmaAlloc(void) +{ + if (NULL == I2CDMABuf_va) + { + I2CDMABuf_va = (u8 *)dma_alloc_coherent(NULL, 4096, &I2CDMABuf_pa, GFP_KERNEL); + } + + if (NULL == I2CDMABuf_va) + { + DBG("DrvCommonDmaAlloc FAILED!"); + } + else + { + DBG("DrvCommonDmaAlloc SUCCESS!"); + } +} + +void DmaFree(void) +{ + if (NULL != I2CDMABuf_va) + { + dma_free_coherent(NULL, 4096, I2CDMABuf_va, I2CDMABuf_pa); + I2CDMABuf_va = NULL; + I2CDMABuf_pa = 0; + } +} +#endif //CONFIG_ENABLE_DMA_IIC + +//------------------------------------------------------------------------------// + +u16 RegGet16BitValue(u16 nAddr) +{ + u8 tx_data[3] = {0x10, (nAddr >> 8) & 0xFF, nAddr & 0xFF}; + u8 rx_data[2] = {0}; + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 3); + IicReadData(SLAVE_I2C_ID_DBBUS, &rx_data[0], 2); + + return (rx_data[1] << 8 | rx_data[0]); +} + +u8 RegGetLByteValue(u16 nAddr) +{ + u8 tx_data[3] = {0x10, (nAddr >> 8) & 0xFF, nAddr & 0xFF}; + u8 rx_data = {0}; + + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 3); + IicReadData(SLAVE_I2C_ID_DBBUS, &rx_data, 1); + + return (rx_data); +} + +u8 RegGetHByteValue(u16 nAddr) +{ + u8 tx_data[3] = {0x10, (nAddr >> 8) & 0xFF, (nAddr & 0xFF) + 1}; + u8 rx_data = {0}; + + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 3); + IicReadData(SLAVE_I2C_ID_DBBUS, &rx_data, 1); + + return (rx_data); +} + +void RegSet16BitValue(u16 nAddr, u16 nData) +{ + u8 tx_data[5] = {0x10, (nAddr >> 8) & 0xFF, nAddr & 0xFF, nData & 0xFF, nData >> 8}; + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 5); +} + +void RegSetLByteValue(u16 nAddr, u8 nData) +{ + u8 tx_data[4] = {0x10, (nAddr >> 8) & 0xFF, nAddr & 0xFF, nData}; + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 4); +} + +void RegSetHByteValue(u16 nAddr, u8 nData) +{ + u8 tx_data[4] = {0x10, (nAddr >> 8) & 0xFF, (nAddr & 0xFF) + 1, nData}; + IicWriteData(SLAVE_I2C_ID_DBBUS, &tx_data[0], 4); +} + +void RegSet16BitValueOn(u16 nAddr, u16 nData) //Set bit on nData from 0 to 1 +{ + u16 rData = RegGet16BitValue(nAddr); + rData |= nData; + RegSet16BitValue(nAddr, rData); +} + +void RegSet16BitValueOff(u16 nAddr, u16 nData) //Set bit on nData from 1 to 0 +{ + u16 rData = RegGet16BitValue(nAddr); + rData &= (~nData); + RegSet16BitValue(nAddr, rData); +} + +void DbBusEnterSerialDebugMode(void) +{ + u8 data[5]; + + // Enter the Serial Debug Mode + data[0] = 0x53; + data[1] = 0x45; + data[2] = 0x52; + data[3] = 0x44; + data[4] = 0x42; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 5); +} + +void DbBusExitSerialDebugMode(void) +{ + u8 data[1]; + + // Exit the Serial Debug Mode + data[0] = 0x45; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); + + // Delay some interval to guard the next transaction +// udelay(200); // delay about 0.2ms +} + +void DbBusIICUseBus(void) +{ + u8 data[1]; + + // IIC Use Bus + data[0] = 0x35; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); +} + +void DbBusIICNotUseBus(void) +{ + u8 data[1]; + + // IIC Not Use Bus + data[0] = 0x34; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); +} + +void DbBusIICReshape(void) +{ + u8 data[1]; + + // IIC Re-shape + data[0] = 0x71; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); +} + +void DbBusStopMCU(void) +{ + u8 data[1]; + + // Stop the MCU + data[0] = 0x37; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); +} + +void DbBusNotStopMCU(void) +{ + u8 data[1]; + + // Not Stop the MCU + data[0] = 0x36; + + IicWriteData(SLAVE_I2C_ID_DBBUS, data, 1); +} + +s32 IicWriteData(u8 nSlaveId, u8* pBuf, u16 nSize) +{ + s32 rc = 0; + +#if defined(CONFIG_TOUCH_DRIVER_RUN_ON_SPRD_PLATFORM) || defined(CONFIG_TOUCH_DRIVER_RUN_ON_QCOM_PLATFORM) + struct i2c_msg msgs[] = + { + { + .addr = nSlaveId, + .flags = 0, // if read flag is undefined, then it means write flag. + .len = nSize, + .buf = pBuf, + }, + }; + + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + if (g_I2cClient != NULL) + { + rc = i2c_transfer(g_I2cClient->adapter, msgs, 1); + if (rc < 0) + { + PRINTF_ERR("IicWriteData() error %d\n", rc); + } + } + else + { + PRINTF_ERR("i2c client is NULL\n"); + } +#elif defined(CONFIG_TOUCH_DRIVER_RUN_ON_MTK_PLATFORM) + if (g_I2cClient != NULL) + { + u8 nAddrBefore = g_I2cClient->addr; + g_I2cClient->addr = nSlaveId; +// g_I2cClient->addr = (g_I2cClient->addr & I2C_MASK_FLAG ) | (I2C_ENEXT_FLAG); + +#ifdef CONFIG_ENABLE_DMA_IIC + if (nSize > 8 && NULL != I2CDMABuf_va) + { + s32 i = 0; + + for (i = 0; i < nSize; i ++) + { + I2CDMABuf_va[i] = pBuf[i]; + } + g_I2cClient->ext_flag = g_I2cClient->ext_flag | I2C_DMA_FLAG; + rc = i2c_master_send(g_I2cClient, (unsigned char *)I2CDMABuf_pa, nSize); + } + else + { + g_I2cClient->ext_flag = g_I2cClient->ext_flag & (~I2C_DMA_FLAG); + rc = i2c_master_send(g_I2cClient, pBuf, nSize); + } +#else + rc = i2c_master_send(g_I2cClient, pBuf, nSize); +#endif //CONFIG_ENABLE_DMA_IIC + g_I2cClient->addr = nAddrBefore; + + if (rc < 0) + { + PRINTF_ERR("IicWriteData() error %d, nSlaveId=%d, nSize=%d\n", rc, nSlaveId, nSize); + } + } + else + { + PRINTF_ERR("i2c client is NULL\n"); + } +#endif + + return rc; +} + +s32 IicReadData(u8 nSlaveId, u8* pBuf, u16 nSize) +{ + s32 rc = 0; + +#if defined(CONFIG_TOUCH_DRIVER_RUN_ON_SPRD_PLATFORM) || defined(CONFIG_TOUCH_DRIVER_RUN_ON_QCOM_PLATFORM) + struct i2c_msg msgs[] = + { + { + .addr = nSlaveId, + .flags = I2C_M_RD, // read flag + .len = nSize, + .buf = pBuf, + }, + }; + + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + if (g_I2cClient != NULL) + { + rc = i2c_transfer(g_I2cClient->adapter, msgs, 1); + if (rc < 0) + { + PRINTF_ERR("IicReadData() error %d\n", rc); + } + } + else + { + PRINTF_ERR("i2c client is NULL\n"); + } +#elif defined(CONFIG_TOUCH_DRIVER_RUN_ON_MTK_PLATFORM) + if (g_I2cClient != NULL) + { + u8 nAddrBefore = g_I2cClient->addr; + g_I2cClient->addr = nSlaveId; +// g_I2cClient->addr = (g_I2cClient->addr & I2C_MASK_FLAG) | (I2C_ENEXT_FLAG); + +#ifdef CONFIG_ENABLE_DMA_IIC + if (nSize > 8 && NULL != I2CDMABuf_va) + { + s32 i = 0; + + g_I2cClient->ext_flag = g_I2cClient->ext_flag | I2C_DMA_FLAG; + rc = i2c_master_recv(g_I2cClient, (unsigned char *)I2CDMABuf_pa, nSize); + + for (i = 0; i < nSize; i ++) + { + pBuf[i] = I2CDMABuf_va[i]; + } + } + else + { + g_I2cClient->ext_flag = g_I2cClient->ext_flag & (~I2C_DMA_FLAG); + rc = i2c_master_recv(g_I2cClient, pBuf, nSize); + } +#else + rc = i2c_master_recv(g_I2cClient, pBuf, nSize); +#endif //CONFIG_ENABLE_DMA_IIC + g_I2cClient->addr = nAddrBefore; + + if (rc < 0) + { + PRINTF_ERR("IicReadData() error %d, nSlaveId=%d, nSize=%d\n", rc, nSlaveId, nSize); + } + } + else + { + PRINTF_ERR("i2c client is NULL\n"); + } +#endif + + return rc; +} + +void mstpMemSet(void *pDst, s8 nVal, u32 nSize) +{ + memset(pDst, nVal, nSize); +} + +void mstpMemCopy(void *pDst, void *pSource, u32 nSize) +{ + memcpy(pDst, pSource, nSize); +} + +void mstpDelay(u32 nTime) +{ + mdelay(nTime); +} + +//------------------------------------------------------------------------------// |