diff options
Diffstat (limited to 'drivers/media/tdmb/fc8050/fc8050_spi.c')
| -rw-r--r-- | drivers/media/tdmb/fc8050/fc8050_spi.c | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/drivers/media/tdmb/fc8050/fc8050_spi.c b/drivers/media/tdmb/fc8050/fc8050_spi.c deleted file mode 100644 index 23db2d5..0000000 --- a/drivers/media/tdmb/fc8050/fc8050_spi.c +++ /dev/null @@ -1,324 +0,0 @@ -/***************************************************************************** - Copyright(c) 2009 FCI Inc. All Rights Reserved - - File name : fc8050_spi.c - - Description : fc8050 host interface - - 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. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - History : - ---------------------------------------------------------------------- - 2009/08/29 jason initial -*******************************************************************************/ -#include <linux/input.h> -#include <linux/spi/spi.h> - -#include "fci_types.h" -#include "fc8050_regs.h" -#include "fci_oal.h" -#include "fc8050_spi.h" - -#include "tdmb.h" - -#define DRIVER_NAME "fc8050_spi" - -#define HPIC_READ 0x01 /* read command */ -#define HPIC_WRITE 0x02 /* write command */ -#define HPIC_AINC 0x04 /* address increment */ -#define HPIC_BMODE 0x00 /* byte mode */ -#define HPIC_WMODE 0x10 /* word mode */ -#define HPIC_LMODE 0x20 /* long mode */ -#define HPIC_ENDIAN 0x00 /* little endian */ -#define HPIC_CLEAR 0x80 /* currently not used */ - -#define CHIPID 0 -#if (CHIPID == 0) -#define SPI_CMD_WRITE 0x0 -#define SPI_CMD_READ 0x1 -#define SPI_CMD_BURST_WRITE 0x2 -#define SPI_CMD_BURST_READ 0x3 -#else -#define SPI_CMD_WRITE 0x4 -#define SPI_CMD_READ 0x5 -#define SPI_CMD_BURST_WRITE 0x6 -#define SPI_CMD_BURST_READ 0x7 -#endif - -struct spi_device *fc8050_spi; - -static u8 tx_data[10]; - -static DEFINE_MUTEX(lock); - -int fc8050_spi_write_then_read( - struct spi_device *spi - , u8 *txbuf - , u16 tx_length - , u8 *rxbuf - , u16 rx_length) -{ - s32 res; - - struct spi_message message; - struct spi_transfer x; - - spi_message_init(&message); - memset(&x, 0, sizeof x); - - spi_message_add_tail(&x, &message); - - x.tx_buf = txbuf; - x.rx_buf = txbuf; - x.len = tx_length + rx_length; - - res = spi_sync(spi, &message); - - memcpy(rxbuf, x.rx_buf + tx_length, rx_length); - - return res; -} - -int fc8050_spi_write_then_burstread( - struct spi_device *spi - , u8 *txbuf - , u16 tx_length - , u8 *rxbuf - , u16 rx_length) -{ - s32 res; - - struct spi_message message; - struct spi_transfer x; - - spi_message_init(&message); - memset(&x, 0, sizeof x); - - spi_message_add_tail(&x, &message); - - x.tx_buf = txbuf; - x.rx_buf = rxbuf; - x.len = tx_length + rx_length; - - res = spi_sync(spi, &message); - - return res; -} - -static int spi_bulkread(HANDLE hDevice, u8 addr, u8 *data, u16 length) -{ - s32 ret; - - tx_data[0] = SPI_CMD_BURST_READ; - tx_data[1] = addr; - - fc8050_spi = tdmb_get_spi_handle(); - ret = fc8050_spi_write_then_read( - fc8050_spi, &tx_data[0], 2, &data[0], length); - - if (ret) { - print_log(0, "fc8050_spi_bulkread fail : %d\n", ret); - return BBM_NOK; - } - - return BBM_OK; -} - -static int spi_bulkwrite(HANDLE hDevice, u8 addr, u8 *data, u16 length) -{ - s32 ret; - s32 i; - - tx_data[0] = SPI_CMD_BURST_WRITE; - tx_data[1] = addr; - - for (i = 0; i < length; i++) - tx_data[2+i] = data[i]; - - fc8050_spi = tdmb_get_spi_handle(); - ret = fc8050_spi_write_then_read( - fc8050_spi, &tx_data[0], length+2, NULL, 0); - - if (ret) { - print_log(0, "fc8050_spi_bulkwrite fail : %d\n", ret); - return BBM_NOK; - } - - return BBM_OK; -} - -static int spi_dataread(HANDLE hDevice, u8 addr, u8 *data, u16 length) -{ - s32 ret = 0; - - tx_data[0] = SPI_CMD_BURST_READ; - tx_data[1] = addr; - - fc8050_spi = tdmb_get_spi_handle(); - - ret = fc8050_spi_write_then_burstread( - fc8050_spi, &tx_data[0], 2, &data[0], length); - - if (ret) { - print_log(0, "fc8050_spi_dataread fail : %d\n", ret); - return BBM_NOK; - } - - return BBM_OK; -} - -int fc8050_spi_init(HANDLE hDevice, u16 param1, u16 param2) -{ - - return BBM_OK; -} - -int fc8050_spi_byteread(HANDLE hDevice, u16 addr, u8 *data) -{ - int res; - u8 command = HPIC_READ | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkread(hDevice, BBM_DATA_REG, data, 1); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_wordread(HANDLE hDevice, u16 addr, u16 *data) -{ - int res; - u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - if (BBM_SCI_DATA <= addr && BBM_SCI_SYNCRX >= addr) - command = HPIC_READ | HPIC_WMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkread(hDevice, BBM_DATA_REG, (u8 *)data, 2); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_longread(HANDLE hDevice, u16 addr, u32 *data) -{ - int res; - u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkread(hDevice, BBM_DATA_REG, (u8 *)data, 4); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_bulkread(HANDLE hDevice, u16 addr, u8 *data, u16 length) -{ - int res; - u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkread(hDevice, BBM_DATA_REG, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_bytewrite(HANDLE hDevice, u16 addr, u8 data) -{ - int res; - u8 command = HPIC_WRITE | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 1); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_wordwrite(HANDLE hDevice, u16 addr, u16 data) -{ - int res; - u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - if (BBM_SCI_DATA <= addr && BBM_SCI_SYNCRX >= addr) - command = HPIC_WRITE | HPIC_WMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 2); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_longwrite(HANDLE hDevice, u16 addr, u32 data) -{ - int res; - u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 4); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_bulkwrite(HANDLE hDevice, u16 addr, u8 *data, u16 length) -{ - int res; - u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_bulkwrite(hDevice, BBM_DATA_REG, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_dataread(HANDLE hDevice, u16 addr, u8 *data, u16 length) -{ - int res; - u8 command = HPIC_READ | HPIC_BMODE | HPIC_ENDIAN; - - mutex_lock(&lock); - res = spi_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1); - res |= spi_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2); - res |= spi_dataread(hDevice, BBM_DATA_REG, data, length); - mutex_unlock(&lock); - - return res; -} - -int fc8050_spi_deinit(HANDLE hDevice) -{ - print_log(NULL, "fc8050_spi_deinit\n"); - return BBM_OK; -} |