diff options
Diffstat (limited to 'drivers/media/isdbt/fc8150/fc8150_spi.c')
| -rw-r--r-- | drivers/media/isdbt/fc8150/fc8150_spi.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/drivers/media/isdbt/fc8150/fc8150_spi.c b/drivers/media/isdbt/fc8150/fc8150_spi.c deleted file mode 100644 index 9903fc8..0000000 --- a/drivers/media/isdbt/fc8150/fc8150_spi.c +++ /dev/null @@ -1,293 +0,0 @@ -/***************************************************************************** - Copyright(c) 2012 FCI Inc. All Rights Reserved - - File name : fc8150_spi.c - - Description : fc8150 host interface - -*******************************************************************************/ -#include <linux/spi/spi.h> -#include <linux/slab.h> - -#include "fci_types.h" -#include "fc8150_regs.h" -#include "fci_oal.h" - -#define SPI_BMODE 0x00 -#define SPI_WMODE 0x10 -#define SPI_LMODE 0x20 -#define SPI_READ 0x40 -#define SPI_WRITE 0x00 -#define SPI_AINC 0x80 -#define CHIPID (0 << 3) - -#define DRIVER_NAME "fc8150_spi" - -struct spi_device *fc8150_spi; - -static u8 tx_data[10]; -static u8 rdata_buf[8192]; -static u8 wdata_buf[8192]; - -static DEFINE_MUTEX(lock); - -static int __devinit fc8150_spi_probe(struct spi_device *spi) -{ - s32 ret; - - PRINTF(0, "fc8150_spi_probe\n"); - - spi->max_speed_hz = 24000000; - spi->bits_per_word = 8; - spi->mode = SPI_MODE_0; - - ret = spi_setup(spi); - - if (ret < 0) - return ret; - - fc8150_spi = spi; - - return ret; -} - -static int fc8150_spi_remove(struct spi_device *spi) -{ - - return 0; -} - -static struct spi_driver fc8150_spi_driver = { - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .probe = fc8150_spi_probe, - .remove = __devexit_p(fc8150_spi_remove), -}; - -static int fc8150_spi_write_then_read(struct spi_device *spi - , u8 *txbuf, u16 tx_length, u8 *rxbuf, u16 rx_length) -{ - int res = 0; - - struct spi_message message; - struct spi_transfer x; - - spi_message_init(&message); - memset(&x, 0, sizeof x); - - spi_message_add_tail(&x, &message); - - memcpy(&wdata_buf[0], txbuf, tx_length); - - x.tx_buf = &wdata_buf[0]; - x.rx_buf = &rdata_buf[0]; - x.len = tx_length + rx_length; - x.cs_change = 0; - x.bits_per_word = 8; - res = spi_sync(spi, &message); - - memcpy(rxbuf, x.rx_buf + tx_length, rx_length); - - return res; -} - -static int spi_bulkread(HANDLE hDevice, u16 addr - , u8 command, u8 *data, u16 length) -{ - int res; - - tx_data[0] = addr & 0xff; - tx_data[1] = (addr >> 8) & 0xff; - tx_data[2] = (command & 0xf0) | CHIPID | ((length >> 16) & 0x07); - tx_data[3] = (length >> 8) & 0xff; - tx_data[4] = length & 0xff; - - res = fc8150_spi_write_then_read(fc8150_spi, &tx_data[0] - , 5, data, length); - - if (res) { - PRINTF(0, "fc8150_spi_bulkread fail : %d\n", res); - return BBM_NOK; - } - - return BBM_OK; -} - -static int spi_bulkwrite(HANDLE hDevice, u16 addr - , u8 command, u8 *data, u16 length) -{ - int i; - int res; - - tx_data[0] = addr & 0xff; - tx_data[1] = (addr >> 8) & 0xff; - tx_data[2] = (command & 0xf0) | CHIPID | ((length >> 16) & 0x07); - tx_data[3] = (length >> 8) & 0xff; - tx_data[4] = length & 0xff; - - for (i = 0; i < length; i++) - tx_data[5+i] = data[i]; - - res = fc8150_spi_write_then_read(fc8150_spi - , &tx_data[0], length+5, NULL, 0); - - if (res) { - PRINTF(0, "fc8150_spi_bulkwrite fail : %d\n", res); - return BBM_NOK; - } - - return BBM_OK; -} - -static int spi_dataread(HANDLE hDevice, u16 addr - , u8 command, u8 *data, u32 length) -{ - int res; - - tx_data[0] = addr & 0xff; - tx_data[1] = (addr >> 8) & 0xff; - tx_data[2] = (command & 0xf0) | CHIPID | ((length >> 16) & 0x07); - tx_data[3] = (length >> 8) & 0xff; - tx_data[4] = length & 0xff; - - res = fc8150_spi_write_then_read(fc8150_spi - , &tx_data[0], 5, data, length); - - if (res) { - PRINTF(0, "fc8150_spi_dataread fail : %d\n", res); - return BBM_NOK; - } - - return BBM_OK; -} - -int fc8150_spi_init(HANDLE hDevice, u16 param1, u16 param2) -{ - int res = 0; - - PRINTF(0, "fc8150_spi_init : %d\n", res); - - res = spi_register_driver(&fc8150_spi_driver); - - if (res) { - PRINTF(0, "fc8150_spi register fail : %d\n", res); - return BBM_NOK; - } - - return res; -} - -int fc8150_spi_byteread(HANDLE hDevice, u16 addr, u8 *data) -{ - int res; - u8 command = SPI_READ; - - mutex_lock(&lock); - res = spi_bulkread(hDevice, addr, command, data, 1); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_wordread(HANDLE hDevice, u16 addr, u16 *data) -{ - int res; - u8 command = SPI_READ | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkread(hDevice, addr, command, (u8 *)data, 2); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_longread(HANDLE hDevice, u16 addr, u32 *data) -{ - int res; - u8 command = SPI_READ | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkread(hDevice, addr, command, (u8 *)data, 4); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_bulkread(HANDLE hDevice, u16 addr, u8 *data, u16 length) -{ - int res; - u8 command = SPI_READ | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkread(hDevice, addr, command, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_bytewrite(HANDLE hDevice, u16 addr, u8 data) -{ - int res; - u8 command = SPI_WRITE; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, addr, command, (u8 *)&data, 1); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_wordwrite(HANDLE hDevice, u16 addr, u16 data) -{ - int res; - u8 command = SPI_WRITE | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, addr, command, (u8 *)&data, 2); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_longwrite(HANDLE hDevice, u16 addr, u32 data) -{ - int res; - u8 command = SPI_WRITE | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, addr, command, (u8 *)&data, 4); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_bulkwrite(HANDLE hDevice, u16 addr, u8 *data, u16 length) -{ - int res; - u8 command = SPI_WRITE | SPI_AINC; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, addr, command, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_dataread(HANDLE hDevice, u16 addr, u8 *data, u32 length) -{ - int res; - u8 command = SPI_READ; - - mutex_lock(&lock); - res = spi_dataread(hDevice, addr, command, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8150_spi_deinit(HANDLE hDevice) -{ - return BBM_OK; -} |