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sd_cprm.c
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sd_cprm.c
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/* Driver for Realtek RTS51xx USB card reader
*
* Copyright(c) 2009 Realtek Semiconductor Corp. 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, 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, see <http://www.gnu.org/licenses/>.
*
* Author:
* wwang (wei_wang@realsil.com.cn)
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
* Maintainer:
* Edwin Rong (edwin_rong@realsil.com.cn)
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
*/
#include <linux/blkdev.h>
#include <linux/kthread.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include "debug.h"
#include "trace.h"
#include "rts51x.h"
#include "rts51x_transport.h"
#include "rts51x_scsi.h"
#include "rts51x_card.h"
#include "rts51x_chip.h"
#include "sd.h"
#ifdef SUPPORT_CPRM
static inline int get_rsp_type(u8 rsp_code, u8 *rsp_type, int *rsp_len)
{
if (!rsp_type || !rsp_len)
return STATUS_FAIL;
switch (rsp_code) {
case 0x03:
*rsp_type = SD_RSP_TYPE_R0; /* no response */
*rsp_len = 0;
break;
case 0x04:
*rsp_type = SD_RSP_TYPE_R1; /* R1,R6(,R4,R5) */
*rsp_len = 6;
break;
case 0x05:
*rsp_type = SD_RSP_TYPE_R1b; /* R1b */
*rsp_len = 6;
break;
case 0x06:
*rsp_type = SD_RSP_TYPE_R2; /* R2 */
*rsp_len = 17;
break;
case 0x07:
*rsp_type = SD_RSP_TYPE_R3; /* R3 */
*rsp_len = 6;
break;
default:
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
static int ext_sd_send_cmd_get_rsp(struct rts51x_chip *chip, u8 cmd_idx,
u32 arg, u8 rsp_type, u8 *rsp, int rsp_len,
int special_check)
{
int retval;
int timeout = 50;
u16 reg_addr;
u8 buf[17], stat;
int len = 2;
int rty_cnt = 0;
RTS51X_DEBUGP("EXT SD/MMC CMD %d\n", cmd_idx);
if (rsp_type == SD_RSP_TYPE_R1b)
timeout = 3000;
RTY_SEND_CMD:
rts51x_init_cmd(chip);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF, 0x40 | cmd_idx);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD1, 0xFF, (u8) (arg >> 24));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD2, 0xFF, (u8) (arg >> 16));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD3, 0xFF, (u8) (arg >> 8));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD4, 0xFF, (u8) arg);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF, rsp_type);
rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE,
0x01, PINGPONG_BUFFER);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER,
0xFF, SD_TM_CMD_RSP | SD_TRANSFER_START);
rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER, SD_TRANSFER_END,
SD_TRANSFER_END);
rts51x_add_cmd(chip, READ_REG_CMD, SD_STAT1, 0, 0);
if (CHECK_USB(chip, USB_20)) {
if (rsp_type == SD_RSP_TYPE_R2) {
for (reg_addr = PPBUF_BASE2;
reg_addr < PPBUF_BASE2 + 16; reg_addr++) {
rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0,
0);
}
len = 19;
} else if (rsp_type != SD_RSP_TYPE_R0) {
/* Read data from SD_CMDx registers */
for (reg_addr = SD_CMD0; reg_addr <= SD_CMD4;
reg_addr++) {
rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0,
0);
}
len = 8;
} else {
len = 3;
}
rts51x_add_cmd(chip, READ_REG_CMD, SD_CMD5, 0, 0);
} else {
len = 2;
}
retval = rts51x_send_cmd(chip, MODE_CR, 100);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, retval);
retval = rts51x_get_rsp(chip, len, timeout);
if (CHECK_SD_TRANS_FAIL(chip, retval)) {
rts51x_clear_sd_error(chip);
if (retval == STATUS_TIMEDOUT) {
if (rsp_type & SD_WAIT_BUSY_END) {
retval = sd_check_data0_status(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, retval);
}
}
TRACE_RET(chip, STATUS_FAIL);
}
if (rsp_type == SD_RSP_TYPE_R0)
return STATUS_SUCCESS;
if (CHECK_USB(chip, USB_20)) {
rts51x_read_rsp_buf(chip, 2, buf, len - 2);
} else {
if (rsp_type == SD_RSP_TYPE_R2) {
reg_addr = PPBUF_BASE2;
len = 16;
} else {
reg_addr = SD_CMD0;
len = 5;
}
retval =
rts51x_seq_read_register(chip, reg_addr,
(unsigned short)len, buf);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, retval);
RTS51X_READ_REG(chip, SD_CMD5, buf + len);
}
stat = chip->rsp_buf[1];
if ((buf[0] & 0xC0) != 0)
TRACE_RET(chip, STATUS_FAIL);
if (!(rsp_type & SD_NO_CHECK_CRC7)) {
if (stat & SD_CRC7_ERR) {
if (cmd_idx == WRITE_MULTIPLE_BLOCK)
TRACE_RET(chip, STATUS_FAIL);
if (rty_cnt < SD_MAX_RETRY_COUNT) {
wait_timeout(20);
rty_cnt++;
goto RTY_SEND_CMD;
} else {
TRACE_RET(chip, STATUS_FAIL);
}
}
}
if ((cmd_idx == SELECT_CARD) || (cmd_idx == APP_CMD) ||
(cmd_idx == SEND_STATUS) || (cmd_idx == STOP_TRANSMISSION)) {
if ((cmd_idx != STOP_TRANSMISSION) && (special_check == 0)) {
if (buf[1] & 0x80)
TRACE_RET(chip, STATUS_FAIL);
}
if (buf[1] & 0x7F)
TRACE_RET(chip, STATUS_FAIL);
if (buf[2] & 0xF8)
TRACE_RET(chip, STATUS_FAIL);
if (cmd_idx == SELECT_CARD) {
if (rsp_type == SD_RSP_TYPE_R2) {
if ((buf[3] & 0x1E) && (buf[3] != 0x04))
TRACE_RET(chip, STATUS_FAIL);
} else if (rsp_type == SD_RSP_TYPE_R2) {
if ((buf[3] & 0x1E) && (buf[3] != 0x03))
TRACE_RET(chip, STATUS_FAIL);
}
}
}
if (rsp && rsp_len)
memcpy(rsp, buf, rsp_len);
return STATUS_SUCCESS;
}
static int ext_sd_get_rsp(struct rts51x_chip *chip, int len,
u8 *rsp, u8 rsp_type)
{
int retval, rsp_len;
u16 reg_addr;
if (rsp_type == SD_RSP_TYPE_R0)
return STATUS_SUCCESS;
rts51x_init_cmd(chip);
if (rsp_type == SD_RSP_TYPE_R2) {
for (reg_addr = PPBUF_BASE2; reg_addr < PPBUF_BASE2 + 16;
reg_addr++) {
rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0xFF, 0);
}
rsp_len = 17;
} else if (rsp_type != SD_RSP_TYPE_R0) {
for (reg_addr = SD_CMD0; reg_addr <= SD_CMD4; reg_addr++)
rts51x_add_cmd(chip, READ_REG_CMD, reg_addr, 0xFF, 0);
rsp_len = 6;
}
rts51x_add_cmd(chip, READ_REG_CMD, SD_CMD5, 0xFF, 0);
retval = rts51x_send_cmd(chip, MODE_CR, 100);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, retval);
retval = rts51x_get_rsp(chip, rsp_len, 100);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, retval);
if (rsp) {
int min_len = (rsp_len < len) ? rsp_len : len;
memcpy(rsp, rts51x_get_rsp_data(chip), min_len);
RTS51X_DEBUGP("min_len = %d\n", min_len);
RTS51X_DEBUGP("Response in cmd buf: 0x%x 0x%x 0x%x 0x%x\n",
rsp[0], rsp[1], rsp[2], rsp[3]);
}
return STATUS_SUCCESS;
}
int ext_rts51x_sd_execute_no_data(struct rts51x_chip *chip, unsigned int lun,
u8 cmd_idx, u8 standby, u8 acmd, u8 rsp_code,
u32 arg)
{
struct sd_info *sd_card = &(chip->sd_card);
int retval, rsp_len;
u8 rsp_type;
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, TRANSPORT_FAILED);
if (sd_card->pre_cmd_err) {
sd_card->pre_cmd_err = 0;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
retval = get_rsp_type(rsp_code, &rsp_type, &rsp_len);
if (retval != STATUS_SUCCESS) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
sd_card->last_rsp_type = rsp_type;
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, TRANSPORT_FAILED);
/* Set H/W SD/MMC Bus Width */
rts51x_write_register(chip, SD_CFG1, 0x03, SD_BUS_WIDTH_4);
if (standby) {
retval = rts51x_sd_select_card(chip, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
}
if (acmd) {
retval =
ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
}
retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
sd_card->rsp, rsp_len, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
if (standby) {
retval = rts51x_sd_select_card(chip, 1);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
}
return TRANSPORT_GOOD;
SD_Execute_Cmd_Failed:
sd_card->pre_cmd_err = 1;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
rts51x_release_sd_card(chip);
rts51x_do_rts51x_reset_sd_card(chip);
if (!(chip->card_ready & SD_CARD))
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
int ext_rts51x_sd_execute_read_data(struct rts51x_chip *chip, unsigned int lun,
u8 cmd_idx, u8 cmd12, u8 standby,
u8 acmd, u8 rsp_code, u32 arg, u32 data_len,
void *data_buf, unsigned int buf_len, int use_sg)
{
struct sd_info *sd_card = &(chip->sd_card);
int retval, rsp_len, i;
int cmd13_checkbit = 0, read_err = 0;
u8 rsp_type, bus_width;
if (sd_card->pre_cmd_err) {
sd_card->pre_cmd_err = 0;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, STATUS_FAIL);
retval = get_rsp_type(rsp_code, &rsp_type, &rsp_len);
if (retval != STATUS_SUCCESS) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
sd_card->last_rsp_type = rsp_type;
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, TRANSPORT_FAILED);
bus_width = SD_BUS_WIDTH_4;
if (data_len < 512) {
retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
if (standby) {
retval = rts51x_sd_select_card(chip, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
if (acmd) {
retval =
ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
if (data_len <= 512) {
int min_len;
u8 *buf;
u16 byte_cnt, blk_cnt;
u8 cmd[5];
unsigned int offset = 0;
void *sg = NULL;
byte_cnt = (u16) (data_len & 0x3FF);
blk_cnt = 1;
cmd[0] = 0x40 | cmd_idx;
cmd[1] = (u8) (arg >> 24);
cmd[2] = (u8) (arg >> 16);
cmd[3] = (u8) (arg >> 8);
cmd[4] = (u8) arg;
buf = kmalloc(data_len, GFP_KERNEL);
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
retval = sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, byte_cnt,
blk_cnt, bus_width, buf, data_len, 2000);
if (retval != STATUS_SUCCESS) {
read_err = 1;
kfree(buf);
rts51x_write_register(chip, CARD_STOP,
SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
min_len = min(data_len, buf_len);
if (use_sg)
rts51x_access_sglist(buf, min_len, (void *)data_buf,
&sg, &offset, TO_XFER_BUF);
else
memcpy(data_buf, buf, min_len);
kfree(buf);
} else if (!(data_len & 0x1FF)) {
rts51x_init_cmd(chip);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 0x02);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x00);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H,
0xFF, (u8) (data_len >> 17));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L,
0xFF, (u8) ((data_len & 0x0001FE00) >> 9));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD0, 0xFF,
0x40 | cmd_idx);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD1, 0xFF,
(u8) (arg >> 24));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD2, 0xFF,
(u8) (arg >> 16));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD3, 0xFF,
(u8) (arg >> 8));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CMD4, 0xFF, (u8) arg);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG1, 0x03, bus_width);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_CFG2, 0xFF, rsp_type);
rts51x_trans_dma_enable(DMA_FROM_DEVICE, chip, data_len, DMA_512);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
SD_TM_AUTO_READ_2 | SD_TRANSFER_START);
rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
SD_TRANSFER_END, SD_TRANSFER_END);
retval = rts51x_send_cmd(chip, MODE_CDIR, 100);
if (retval != STATUS_SUCCESS) {
read_err = 1;
rts51x_ep0_write_register(chip, CARD_STOP,
SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
retval =
rts51x_transfer_data_rcc(chip, RCV_BULK_PIPE(chip),
data_buf, buf_len, use_sg, NULL,
10000, STAGE_DI);
if (retval != STATUS_SUCCESS) {
read_err = 1;
rts51x_ep0_write_register(chip, CARD_STOP,
SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
retval = rts51x_get_rsp(chip, 1, 500);
if (CHECK_SD_TRANS_FAIL(chip, retval)) {
read_err = 1;
rts51x_ep0_write_register(chip, CARD_STOP,
SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
} else {
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
retval = ext_sd_get_rsp(chip, rsp_len, sd_card->rsp, rsp_type);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
if (standby) {
retval = rts51x_sd_select_card(chip, 1);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
if (cmd12) {
retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
0, SD_RSP_TYPE_R1b, NULL, 0,
0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
}
if (data_len < 512) {
retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
rts51x_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
rts51x_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
}
if (standby || cmd12)
cmd13_checkbit = 1;
for (i = 0; i < 3; i++) {
retval =
ext_sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
SD_RSP_TYPE_R1, NULL, 0,
cmd13_checkbit);
if (retval == STATUS_SUCCESS)
break;
}
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
return TRANSPORT_GOOD;
SD_Execute_Read_Cmd_Failed:
sd_card->pre_cmd_err = 1;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
if (read_err)
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
rts51x_release_sd_card(chip);
rts51x_do_rts51x_reset_sd_card(chip);
if (!(chip->card_ready & SD_CARD))
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
int ext_rts51x_sd_execute_write_data(struct rts51x_chip *chip, unsigned int lun,
u8 cmd_idx, u8 cmd12, u8 standby, u8 acmd,
u8 rsp_code, u32 arg, u32 data_len,
void *data_buf, unsigned int buf_len, int use_sg)
{
struct sd_info *sd_card = &(chip->sd_card);
int retval, rsp_len;
int cmd13_checkbit = 0, write_err = 0;
u8 rsp_type;
u32 i;
if (sd_card->pre_cmd_err) {
sd_card->pre_cmd_err = 0;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, STATUS_FAIL);
retval = get_rsp_type(rsp_code, &rsp_type, &rsp_len);
if (retval != STATUS_SUCCESS) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
sd_card->last_rsp_type = rsp_type;
retval = rts51x_sd_switch_clock(chip);
if (retval != STATUS_SUCCESS)
TRACE_RET(chip, TRANSPORT_FAILED);
rts51x_write_register(chip, SD_CFG1, 0x03, SD_BUS_WIDTH_4);
if (data_len < 512) {
retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (standby) {
retval = rts51x_sd_select_card(chip, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (acmd) {
retval =
ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
sd_card->rsp, rsp_len, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
if (data_len <= 512) {
u8 *buf;
unsigned int offset = 0;
void *sg = NULL;
buf = kmalloc(data_len, GFP_KERNEL);
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
if (use_sg)
rts51x_access_sglist(buf, data_len, (void *)data_buf,
&sg, &offset, FROM_XFER_BUF);
else
memcpy(buf, data_buf, data_len);
if (data_len > 256) {
rts51x_init_cmd(chip);
for (i = 0; i < 256; i++) {
rts51x_add_cmd(chip, WRITE_REG_CMD,
(u16) (PPBUF_BASE2 + i), 0xFF,
buf[i]);
}
retval = rts51x_send_cmd(chip, MODE_C, 250);
if (retval != STATUS_SUCCESS) {
kfree(buf);
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
rts51x_init_cmd(chip);
for (i = 256; i < data_len; i++) {
rts51x_add_cmd(chip, WRITE_REG_CMD,
(u16) (PPBUF_BASE2 + i), 0xFF,
buf[i]);
}
retval = rts51x_send_cmd(chip, MODE_C, 250);
if (retval != STATUS_SUCCESS) {
kfree(buf);
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
} else {
rts51x_init_cmd(chip);
for (i = 0; i < data_len; i++) {
rts51x_add_cmd(chip, WRITE_REG_CMD,
(u16) (PPBUF_BASE2 + i), 0xFF,
buf[i]);
}
retval = rts51x_send_cmd(chip, MODE_C, 250);
if (retval != STATUS_SUCCESS) {
kfree(buf);
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
}
kfree(buf);
rts51x_init_cmd(chip);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF,
(u8) ((data_len >> 8) & 0x03));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF,
(u8) data_len);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, 0x00);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L, 0xFF, 0x01);
rts51x_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01,
PINGPONG_BUFFER);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
SD_TM_AUTO_WRITE_3 | SD_TRANSFER_START);
rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
SD_TRANSFER_END, SD_TRANSFER_END);
retval = rts51x_send_cmd(chip, MODE_CR, 100);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
retval = rts51x_get_rsp(chip, 1, 250);
if (CHECK_SD_TRANS_FAIL(chip, retval))
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
} else if (!(data_len & 0x1FF)) {
rts51x_init_cmd(chip);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_H, 0xFF, 0x02);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BYTE_CNT_L, 0xFF, 0x00);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_H,
0xFF, (u8) (data_len >> 17));
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_BLOCK_CNT_L,
0xFF, (u8) ((data_len & 0x0001FE00) >> 9));
rts51x_trans_dma_enable(DMA_TO_DEVICE, chip, data_len, DMA_512);
rts51x_add_cmd(chip, WRITE_REG_CMD, SD_TRANSFER, 0xFF,
SD_TM_AUTO_WRITE_3 | SD_TRANSFER_START);
rts51x_add_cmd(chip, CHECK_REG_CMD, SD_TRANSFER,
SD_TRANSFER_END, SD_TRANSFER_END);
retval = rts51x_send_cmd(chip, MODE_CDOR, 100);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
retval =
rts51x_transfer_data_rcc(chip, SND_BULK_PIPE(chip),
data_buf, buf_len, use_sg, NULL,
10000, STAGE_DO);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
retval = rts51x_get_rsp(chip, 1, 10000);
if (CHECK_SD_TRANS_FAIL(chip, retval))
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
} else {
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (retval < 0) {
write_err = 1;
rts51x_write_register(chip, CARD_STOP, SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (standby) {
retval = rts51x_sd_select_card(chip, 1);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (cmd12) {
retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
0, SD_RSP_TYPE_R1b, NULL, 0,
0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
}
if (data_len < 512) {
retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
SD_RSP_TYPE_R1, NULL, 0, 0);
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
rts51x_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
rts51x_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
}
if (cmd12 || standby) {
/* There is CMD7 or CMD12 sent before CMD13 */
cmd13_checkbit = 1;
}
for (i = 0; i < 3; i++) {
retval =
ext_sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
SD_RSP_TYPE_R1, NULL, 0,
cmd13_checkbit);
if (retval == STATUS_SUCCESS)
break;
}
if (retval != STATUS_SUCCESS)
TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
return TRANSPORT_GOOD;
SD_Execute_Write_Cmd_Failed:
sd_card->pre_cmd_err = 1;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
if (write_err)
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
rts51x_release_sd_card(chip);
rts51x_do_rts51x_reset_sd_card(chip);
if (!(chip->card_ready & SD_CARD))
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
int rts51x_sd_pass_thru_mode(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
unsigned int lun = SCSI_LUN(srb);
int len;
u8 buf[18] = {
0x00,
0x00,
0x00,
0x0E,
0x00, /* Version Number */
0x00, /* WP | Media Type */
0x00, /* RCA (Low byte) */
0x00, /* RCA (High byte) */
0x53, /* 'S' */
0x44, /* 'D' */
0x20, /* ' ' */
0x43, /* 'C' */
0x61, /* 'a' */
0x72, /* 'r' */
0x64, /* 'd' */
0x00, /* Max LUN Number */
0x00,
0x00,
};
sd_card->pre_cmd_err = 0;
if (!(CHK_BIT(chip->lun_mc, lun))) {
SET_BIT(chip->lun_mc, lun);
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if ((0x53 != srb->cmnd[2]) || (0x44 != srb->cmnd[3])
|| (0x20 != srb->cmnd[4]) || (0x43 != srb->cmnd[5])
|| (0x61 != srb->cmnd[6]) || (0x72 != srb->cmnd[7])
|| (0x64 != srb->cmnd[8])) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
switch (srb->cmnd[1] & 0x0F) {
case 0:
sd_card->sd_pass_thru_en = 0;
break;
case 1:
sd_card->sd_pass_thru_en = 1;
break;
default:
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
/* 0x01:SD Memory Card; 0x02:Other Media; 0x03:Illegal Media; */
buf[5] = (1 == CHK_SD(sd_card)) ? 0x01 : 0x02;
if (chip->card_wp & SD_CARD)
buf[5] |= 0x80;
buf[6] = (u8) (sd_card->sd_addr >> 16);
buf[7] = (u8) (sd_card->sd_addr >> 24);
buf[15] = chip->max_lun;
len = min_t(unsigned, 18, scsi_bufflen(srb));
rts51x_set_xfer_buf(buf, len, srb);
return TRANSPORT_GOOD;
}
int rts51x_sd_execute_no_data(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
unsigned int lun = SCSI_LUN(srb);
int retval;
u8 cmd_idx, rsp_code;
u8 standby = 0, acmd = 0;
u32 arg;
if (!sd_card->sd_pass_thru_en) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
cmd_idx = srb->cmnd[2] & 0x3F;
if (srb->cmnd[1] & 0x02)
standby = 1;
if (srb->cmnd[1] & 0x01)
acmd = 1;
arg = ((u32) srb->cmnd[3] << 24) | ((u32) srb->cmnd[4] << 16) |
((u32) srb->cmnd[5] << 8) | srb->cmnd[6];
rsp_code = srb->cmnd[10];
retval =
ext_rts51x_sd_execute_no_data(chip, lun, cmd_idx, standby, acmd, rsp_code,
arg);
scsi_set_resid(srb, 0);
return retval;
}
int rts51x_sd_execute_read_data(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
int retval;
unsigned int lun = SCSI_LUN(srb);
u8 cmd_idx, rsp_code, send_cmd12 = 0, standby = 0, acmd = 0;
u32 arg, data_len;
if (!sd_card->sd_pass_thru_en) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
cmd_idx = srb->cmnd[2] & 0x3F;
if (srb->cmnd[1] & 0x04)
send_cmd12 = 1;
if (srb->cmnd[1] & 0x02)
standby = 1;
if (srb->cmnd[1] & 0x01)
acmd = 1;
arg = ((u32) srb->cmnd[3] << 24) | ((u32) srb->cmnd[4] << 16) |
((u32) srb->cmnd[5] << 8) | srb->cmnd[6];
data_len =
((u32) srb->cmnd[7] << 16) | ((u32) srb->cmnd[8] << 8) |
srb->cmnd[9];
rsp_code = srb->cmnd[10];
retval =
ext_rts51x_sd_execute_read_data(chip, lun, cmd_idx, send_cmd12, standby,
acmd, rsp_code, arg, data_len,
scsi_sglist(srb), scsi_bufflen(srb),
scsi_sg_count(srb));
scsi_set_resid(srb, 0);
return retval;
}
int rts51x_sd_execute_write_data(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
int retval;
unsigned int lun = SCSI_LUN(srb);
u8 cmd_idx, rsp_code, send_cmd12 = 0, standby = 0, acmd = 0;
u32 data_len, arg;
if (!sd_card->sd_pass_thru_en) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
cmd_idx = srb->cmnd[2] & 0x3F;
if (srb->cmnd[1] & 0x04)
send_cmd12 = 1;
if (srb->cmnd[1] & 0x02)
standby = 1;
if (srb->cmnd[1] & 0x01)
acmd = 1;
data_len =
((u32) srb->cmnd[7] << 16) | ((u32) srb->cmnd[8] << 8) |
srb->cmnd[9];
arg =
((u32) srb->cmnd[3] << 24) | ((u32) srb->cmnd[4] << 16) |
((u32) srb->cmnd[5] << 8) | srb->cmnd[6];
rsp_code = srb->cmnd[10];
retval =
ext_rts51x_sd_execute_write_data(chip, lun, cmd_idx, send_cmd12, standby,
acmd, rsp_code, arg, data_len,
scsi_sglist(srb), scsi_bufflen(srb),
scsi_sg_count(srb));
scsi_set_resid(srb, 0);
return retval;
}
int rts51x_sd_get_cmd_rsp(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
unsigned int lun = SCSI_LUN(srb);
int count;
u16 data_len;
if (!sd_card->sd_pass_thru_en) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if (sd_card->pre_cmd_err) {
sd_card->pre_cmd_err = 0;
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
data_len = ((u16) srb->cmnd[7] << 8) | srb->cmnd[8];
if (sd_card->last_rsp_type == SD_RSP_TYPE_R0) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
} else if (sd_card->last_rsp_type == SD_RSP_TYPE_R2) {
count = (data_len < 17) ? data_len : 17;
} else {
count = (data_len < 6) ? data_len : 6;
}
rts51x_set_xfer_buf(sd_card->rsp, count, srb);
RTS51X_DEBUGP("Response length: %d\n", data_len);
RTS51X_DEBUGP("Response: 0x%x 0x%x 0x%x 0x%x\n",
sd_card->rsp[0], sd_card->rsp[1], sd_card->rsp[2],
sd_card->rsp[3]);
scsi_set_resid(srb, 0);
return TRANSPORT_GOOD;
}
int rts51x_sd_hw_rst(struct scsi_cmnd *srb, struct rts51x_chip *chip)