diff options
Diffstat (limited to 'drivers/staging/rts5208/spi.c')
| -rw-r--r-- | drivers/staging/rts5208/spi.c | 372 |
1 files changed, 265 insertions, 107 deletions
diff --git a/drivers/staging/rts5208/spi.c b/drivers/staging/rts5208/spi.c index 29f4a80844fa..e67e7ecc2cbd 100644 --- a/drivers/staging/rts5208/spi.c +++ b/drivers/staging/rts5208/spi.c @@ -25,9 +25,6 @@ #include <linux/sched.h> #include "rtsx.h" -#include "rtsx_transport.h" -#include "rtsx_scsi.h" -#include "rtsx_card.h" #include "spi.h" static inline void spi_set_err_code(struct rtsx_chip *chip, u8 err_code) @@ -39,10 +36,20 @@ static inline void spi_set_err_code(struct rtsx_chip *chip, u8 err_code) static int spi_init(struct rtsx_chip *chip) { - RTSX_WRITE_REG(chip, SPI_CONTROL, 0xFF, - CS_POLARITY_LOW | DTO_MSB_FIRST | SPI_MASTER | SPI_MODE0 | - SPI_AUTO); - RTSX_WRITE_REG(chip, SPI_TCTL, EDO_TIMING_MASK, SAMPLE_DELAY_HALF); + int retval; + + retval = rtsx_write_register(chip, SPI_CONTROL, 0xFF, + CS_POLARITY_LOW | DTO_MSB_FIRST | SPI_MASTER | SPI_MODE0 | SPI_AUTO); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, SPI_TCTL, EDO_TIMING_MASK, + SAMPLE_DELAY_HALF); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -52,25 +59,51 @@ static int spi_set_init_para(struct rtsx_chip *chip) struct spi_info *spi = &(chip->spi); int retval; - RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER1, 0xFF, (u8)(spi->clk_div >> 8)); - RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER0, 0xFF, (u8)(spi->clk_div)); + retval = rtsx_write_register(chip, SPI_CLK_DIVIDER1, 0xFF, + (u8)(spi->clk_div >> 8)); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, SPI_CLK_DIVIDER0, 0xFF, + (u8)(spi->clk_div)); + if (retval) { + rtsx_trace(chip); + return retval; + } retval = switch_clock(chip, spi->spi_clock); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = select_card(chip, SPI_CARD); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } - RTSX_WRITE_REG(chip, CARD_CLK_EN, SPI_CLK_EN, SPI_CLK_EN); - RTSX_WRITE_REG(chip, CARD_OE, SPI_OUTPUT_EN, SPI_OUTPUT_EN); + retval = rtsx_write_register(chip, CARD_CLK_EN, SPI_CLK_EN, + SPI_CLK_EN); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, CARD_OE, SPI_OUTPUT_EN, + SPI_OUTPUT_EN); + if (retval) { + rtsx_trace(chip); + return retval; + } wait_timeout(10); retval = spi_init(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } return STATUS_SUCCESS; } @@ -91,7 +124,8 @@ static int sf_polling_status(struct rtsx_chip *chip, int msec) if (retval < 0) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_BUSY_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -119,7 +153,8 @@ static int sf_enable_write(struct rtsx_chip *chip, u8 ins) if (retval < 0) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -147,7 +182,8 @@ static int sf_disable_write(struct rtsx_chip *chip, u8 ins) if (retval < 0) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -205,7 +241,8 @@ static int sf_erase(struct rtsx_chip *chip, u8 ins, u8 addr_mode, u32 addr) if (retval < 0) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -221,25 +258,56 @@ static int spi_init_eeprom(struct rtsx_chip *chip) else clk = CLK_30; - RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER1, 0xFF, 0x00); - RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER0, 0xFF, 0x27); + retval = rtsx_write_register(chip, SPI_CLK_DIVIDER1, 0xFF, 0x00); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, SPI_CLK_DIVIDER0, 0xFF, 0x27); + if (retval) { + rtsx_trace(chip); + return retval; + } retval = switch_clock(chip, clk); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = select_card(chip, SPI_CARD); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } - RTSX_WRITE_REG(chip, CARD_CLK_EN, SPI_CLK_EN, SPI_CLK_EN); - RTSX_WRITE_REG(chip, CARD_OE, SPI_OUTPUT_EN, SPI_OUTPUT_EN); + retval = rtsx_write_register(chip, CARD_CLK_EN, SPI_CLK_EN, + SPI_CLK_EN); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, CARD_OE, SPI_OUTPUT_EN, + SPI_OUTPUT_EN); + if (retval) { + rtsx_trace(chip); + return retval; + } wait_timeout(10); - RTSX_WRITE_REG(chip, SPI_CONTROL, 0xFF, - CS_POLARITY_HIGH | SPI_EEPROM_AUTO); - RTSX_WRITE_REG(chip, SPI_TCTL, EDO_TIMING_MASK, SAMPLE_DELAY_HALF); + retval = rtsx_write_register(chip, SPI_CONTROL, 0xFF, + CS_POLARITY_HIGH | SPI_EEPROM_AUTO); + if (retval) { + rtsx_trace(chip); + return retval; + } + retval = rtsx_write_register(chip, SPI_TCTL, EDO_TIMING_MASK, + SAMPLE_DELAY_HALF); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -258,8 +326,10 @@ static int spi_eeprom_program_enable(struct rtsx_chip *chip) SPI_TRANSFER0_END); retval = rtsx_send_cmd(chip, 0, 100); - if (retval < 0) - TRACE_RET(chip, STATUS_FAIL); + if (retval < 0) { + rtsx_trace(chip); + return STATUS_FAIL; + } return STATUS_SUCCESS; } @@ -269,12 +339,16 @@ int spi_erase_eeprom_chip(struct rtsx_chip *chip) int retval; retval = spi_init_eeprom(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = spi_eeprom_program_enable(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } rtsx_init_cmd(chip); @@ -288,10 +362,16 @@ int spi_erase_eeprom_chip(struct rtsx_chip *chip) SPI_TRANSFER0_END); retval = rtsx_send_cmd(chip, 0, 100); - if (retval < 0) - TRACE_RET(chip, STATUS_FAIL); + if (retval < 0) { + rtsx_trace(chip); + return STATUS_FAIL; + } - RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01); + retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -301,12 +381,16 @@ int spi_erase_eeprom_byte(struct rtsx_chip *chip, u16 addr) int retval; retval = spi_init_eeprom(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = spi_eeprom_program_enable(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } rtsx_init_cmd(chip); @@ -322,10 +406,16 @@ int spi_erase_eeprom_byte(struct rtsx_chip *chip, u16 addr) SPI_TRANSFER0_END); retval = rtsx_send_cmd(chip, 0, 100); - if (retval < 0) - TRACE_RET(chip, STATUS_FAIL); + if (retval < 0) { + rtsx_trace(chip); + return STATUS_FAIL; + } - RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01); + retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -337,8 +427,10 @@ int spi_read_eeprom(struct rtsx_chip *chip, u16 addr, u8 *val) u8 data; retval = spi_init_eeprom(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } rtsx_init_cmd(chip); @@ -355,16 +447,26 @@ int spi_read_eeprom(struct rtsx_chip *chip, u16 addr, u8 *val) SPI_TRANSFER0_END); retval = rtsx_send_cmd(chip, 0, 100); - if (retval < 0) - TRACE_RET(chip, STATUS_FAIL); + if (retval < 0) { + rtsx_trace(chip); + return STATUS_FAIL; + } wait_timeout(5); - RTSX_READ_REG(chip, SPI_DATA, &data); + retval = rtsx_read_register(chip, SPI_DATA, &data); + if (retval) { + rtsx_trace(chip); + return retval; + } if (val) *val = data; - RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01); + retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -374,12 +476,16 @@ int spi_write_eeprom(struct rtsx_chip *chip, u16 addr, u8 val) int retval; retval = spi_init_eeprom(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = spi_eeprom_program_enable(chip); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } rtsx_init_cmd(chip); @@ -396,10 +502,16 @@ int spi_write_eeprom(struct rtsx_chip *chip, u16 addr, u8 val) SPI_TRANSFER0_END); retval = rtsx_send_cmd(chip, 0, 100); - if (retval < 0) - TRACE_RET(chip, STATUS_FAIL); + if (retval < 0) { + rtsx_trace(chip); + return STATUS_FAIL; + } - RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01); + retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01); + if (retval) { + rtsx_trace(chip); + return retval; + } return STATUS_SUCCESS; } @@ -449,13 +561,15 @@ int spi_read_flash_id(struct scsi_cmnd *srb, struct rtsx_chip *chip) len = ((u16)(srb->cmnd[7]) << 8) | srb->cmnd[8]; if (len > 512) { spi_set_err_code(chip, SPI_INVALID_COMMAND); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } retval = spi_set_init_para(chip); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } rtsx_init_cmd(chip); @@ -497,19 +611,23 @@ int spi_read_flash_id(struct scsi_cmnd *srb, struct rtsx_chip *chip) if (retval < 0) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } if (len) { buf = kmalloc(len, GFP_KERNEL); - if (!buf) - TRACE_RET(chip, STATUS_ERROR); + if (!buf) { + rtsx_trace(chip); + return STATUS_ERROR; + } retval = rtsx_read_ppbuf(chip, buf, len); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_READ_ERR); kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } rtsx_stor_set_xfer_buf(buf, scsi_bufflen(srb), srb); @@ -541,12 +659,15 @@ int spi_read_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) retval = spi_set_init_para(chip); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL); - if (buf == NULL) - TRACE_RET(chip, STATUS_ERROR); + if (buf == NULL) { + rtsx_trace(chip); + return STATUS_ERROR; + } while (len) { u16 pagelen = SF_PAGE_LEN - (u8)addr; @@ -598,7 +719,8 @@ int spi_read_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } rtsx_stor_access_xfer_buf(buf, pagelen, srb, &index, &offset, @@ -634,19 +756,23 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) retval = spi_set_init_para(chip); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } if (program_mode == BYTE_PROGRAM) { buf = kmalloc(4, GFP_KERNEL); - if (!buf) - TRACE_RET(chip, STATUS_ERROR); + if (!buf) { + rtsx_trace(chip); + return STATUS_ERROR; + } while (len) { retval = sf_enable_write(chip, SPI_WREN); if (retval != STATUS_SUCCESS) { kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } rtsx_stor_access_xfer_buf(buf, 1, srb, &index, &offset, @@ -665,13 +791,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } retval = sf_polling_status(chip, 100); if (retval != STATUS_SUCCESS) { kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } addr++; @@ -684,12 +812,16 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) int first_byte = 1; retval = sf_enable_write(chip, SPI_WREN); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } buf = kmalloc(4, GFP_KERNEL); - if (!buf) - TRACE_RET(chip, STATUS_ERROR); + if (!buf) { + rtsx_trace(chip); + return STATUS_ERROR; + } while (len) { rtsx_stor_access_xfer_buf(buf, 1, srb, &index, &offset, @@ -713,13 +845,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } retval = sf_polling_status(chip, 100); if (retval != STATUS_SUCCESS) { kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } len--; @@ -728,16 +862,22 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); retval = sf_disable_write(chip, SPI_WRDI); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = sf_polling_status(chip, 100); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } } else if (program_mode == PAGE_PROGRAM) { buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL); - if (!buf) - TRACE_RET(chip, STATUS_NOMEM); + if (!buf) { + rtsx_trace(chip); + return STATUS_NOMEM; + } while (len) { u16 pagelen = SF_PAGE_LEN - (u8)addr; @@ -748,7 +888,8 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) retval = sf_enable_write(chip, SPI_WREN); if (retval != STATUS_SUCCESS) { kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } rtsx_init_cmd(chip); @@ -767,13 +908,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } retval = sf_polling_status(chip, 100); if (retval != STATUS_SUCCESS) { kfree(buf); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } addr += pagelen; @@ -783,7 +926,8 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) kfree(buf); } else { spi_set_err_code(chip, SPI_INVALID_COMMAND); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -805,28 +949,38 @@ int spi_erase_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip) retval = spi_set_init_para(chip); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } if (erase_mode == PAGE_ERASE) { retval = sf_enable_write(chip, SPI_WREN); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = sf_erase(chip, ins, 1, addr); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } } else if (erase_mode == CHIP_ERASE) { retval = sf_enable_write(chip, SPI_WREN); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } retval = sf_erase(chip, ins, 0, 0); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } } else { spi_set_err_code(chip, SPI_INVALID_COMMAND); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; @@ -844,12 +998,15 @@ int spi_write_flash_status(struct scsi_cmnd *srb, struct rtsx_chip *chip) retval = spi_set_init_para(chip); if (retval != STATUS_SUCCESS) { spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } retval = sf_enable_write(chip, ewsr); - if (retval != STATUS_SUCCESS) - TRACE_RET(chip, STATUS_FAIL); + if (retval != STATUS_SUCCESS) { + rtsx_trace(chip); + return STATUS_FAIL; + } rtsx_init_cmd(chip); @@ -871,7 +1028,8 @@ int spi_write_flash_status(struct scsi_cmnd *srb, struct rtsx_chip *chip) if (retval != STATUS_SUCCESS) { rtsx_clear_spi_error(chip); spi_set_err_code(chip, SPI_HW_ERR); - TRACE_RET(chip, STATUS_FAIL); + rtsx_trace(chip); + return STATUS_FAIL; } return STATUS_SUCCESS; |