- 根目录:
- drivers
- staging
- rts5208
- rtsx_card.c
/* Driver for Realtek PCI-Express card reader
*
* Copyright(c) 2009-2013 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:
* Wei WANG (wei_wang@realsil.com.cn)
* Micky Ching (micky_ching@realsil.com.cn)
*/
#include <linux/blkdev.h>
#include <linux/kthread.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/kernel.h>
#include "rtsx.h"
#include "sd.h"
#include "xd.h"
#include "ms.h"
void do_remaining_work(struct rtsx_chip *chip)
{
struct sd_info *sd_card = &(chip->sd_card);
#ifdef XD_DELAY_WRITE
struct xd_info *xd_card = &(chip->xd_card);
#endif
struct ms_info *ms_card = &(chip->ms_card);
if (chip->card_ready & SD_CARD) {
if (sd_card->seq_mode) {
rtsx_set_stat(chip, RTSX_STAT_RUN);
sd_card->cleanup_counter++;
} else {
sd_card->cleanup_counter = 0;
}
}
#ifdef XD_DELAY_WRITE
if (chip->card_ready & XD_CARD) {
if (xd_card->delay_write.delay_write_flag) {
rtsx_set_stat(chip, RTSX_STAT_RUN);
xd_card->cleanup_counter++;
} else {
xd_card->cleanup_counter = 0;
}
}
#endif
if (chip->card_ready & MS_CARD) {
if (CHK_MSPRO(ms_card)) {
if (ms_card->seq_mode) {
rtsx_set_stat(chip, RTSX_STAT_RUN);
ms_card->cleanup_counter++;
} else {
ms_card->cleanup_counter = 0;
}
} else {
#ifdef MS_DELAY_WRITE
if (ms_card->delay_write.delay_write_flag) {
rtsx_set_stat(chip, RTSX_STAT_RUN);
ms_card->cleanup_counter++;
} else {
ms_card->cleanup_counter = 0;
}
#endif
}
}
if (sd_card->cleanup_counter > POLLING_WAIT_CNT)
sd_cleanup_work(chip);
if (xd_card->cleanup_counter > POLLING_WAIT_CNT)
xd_cleanup_work(chip);
if (ms_card->cleanup_counter > POLLING_WAIT_CNT)
ms_cleanup_work(chip);
}
void try_to_switch_sdio_ctrl(struct rtsx_chip *chip)
{
u8 reg1 = 0, reg2 = 0;
rtsx_read_register(chip, 0xFF34, ®1);
rtsx_read_register(chip, 0xFF38, ®2);
dev_dbg(rtsx_dev(chip), "reg 0xFF34: 0x%x, reg 0xFF38: 0x%x\n",
reg1, reg2);
if ((reg1 & 0xC0) && (reg2 & 0xC0)) {
chip->sd_int = 1;
rtsx_write_register(chip, SDIO_CTRL, 0xFF,
SDIO_BUS_CTRL | SDIO_CD_CTRL);
rtsx_write_register(chip, PWR_GATE_CTRL,
LDO3318_PWR_MASK, LDO_ON);
}
}
#ifdef SUPPORT_SDIO_ASPM
void dynamic_configure_sdio_aspm(struct rtsx_chip *chip)
{
u8 buf[12], reg;
int i;
for (i = 0; i < 12; i++)
rtsx_read_register(chip, 0xFF08 + i, &buf[i]);
rtsx_read_register(chip, 0xFF25, ®);
if ((memcmp(buf, chip->sdio_raw_data, 12) != 0) || (reg & 0x03)) {
chip->sdio_counter = 0;
chip->sdio_idle = 0;
} else {
if (!chip->sdio_idle) {
chip->sdio_counter++;
if (chip->sdio_counter >= SDIO_IDLE_COUNT) {
chip->sdio_counter = 0;
chip->sdio_idle = 1;
}
}
}
memcpy(chip->sdio_raw_data, buf, 12);
if (chip->sdio_idle) {
if (!chip->sdio_aspm) {
dev_dbg(rtsx_dev(chip), "SDIO enter ASPM!\n");
rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFC,
0x30 | (chip->aspm_level[1] << 2));
chip->sdio_aspm = 1;
}
} else {
if (chip->sdio_aspm) {
dev_dbg(rtsx_dev(chip), "SDIO exit ASPM!\n");
rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFC, 0x30);
chip->sdio_aspm = 0;
}
}
}
#endif
void do_reset_sd_card(struct rtsx_chip *chip)
{
int retval;
dev_dbg(rtsx_dev(chip), "%s: %d, card2lun = 0x%x\n", __func__,
chip->sd_reset_counter, chip->card2lun[SD_CARD]);
if (chip->card2lun[SD_CARD] >= MAX_ALLOWED_LUN_CNT) {
clear_bit(SD_NR, &(chip->need_reset));
chip->sd_reset_counter = 0;
chip->sd_show_cnt = 0;
return;
}
chip->rw_fail_cnt[chip->card2lun[SD_CARD]] = 0;
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_write_register(chip, SDIO_CTRL, 0xFF, 0);
retval = reset_sd_card(chip);
if (chip->need_release & SD_CARD)
return;
if (retval == STATUS_SUCCESS) {
clear_bit(SD_NR, &(chip->need_reset));
chip->sd_reset_counter = 0;
chip->sd_show_cnt = 0;
chip->card_ready |= SD_CARD;
chip->card_fail &= ~SD_CARD;
chip->rw_card[chip->card2lun[SD_CARD]] = sd_rw;
} else {
if (chip->sd_io || (chip->sd_reset_counter >= MAX_RESET_CNT)) {
clear_bit(SD_NR, &(chip->need_reset));
chip->sd_reset_counter = 0;
chip->sd_show_cnt = 0;
} else {
chip->sd_reset_counter++;
}
chip->card_ready &= ~SD_CARD;
chip->card_fail |= SD_CARD;
chip->capacity[chip->card2lun[SD_CARD]] = 0;
chip->rw_card[chip->card2lun[SD_CARD]] = NULL;
rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN, 0);
if (!chip->ft2_fast_mode)
card_power_off(chip, SD_CARD);
if (chip->sd_io) {
chip->sd_int = 0;
try_to_switch_sdio_ctrl(chip);
} else {
disable_card_clock(chip, SD_CARD);
}
}
}
void do_reset_xd_card(struct rtsx_chip *chip)
{
int retval;
dev_dbg(rtsx_dev(chip), "%s: %d, card2lun = 0x%x\n", __func__,
chip->xd_reset_counter, chip->card2lun[XD_CARD]);
if (chip->card2lun[XD_CARD] >= MAX_ALLOWED_LUN_CNT) {
clear_bit(XD_NR, &(chip->need_reset));
chip->xd_reset_counter = 0;
chip->xd_show_cnt = 0;
return;
}
chip->rw_fail_cnt[chip->card2lun[XD_CARD]] = 0;
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_write_register(chip, SDIO_CTRL, 0xFF, 0);
retval = reset_xd_card(chip);
if (chip->need_release & XD_CARD)
return;
if (retval == STATUS_SUCCESS) {
clear_bit(XD_NR, &(chip->need_reset));
chip->xd_reset_counter = 0;
chip->card_ready |= XD_CARD;
chip->card_fail &= ~XD_CARD;
chip->rw_card[chip->card2lun[XD_CARD]] = xd_rw;
} else {
if (chip->xd_reset_counter >= MAX_RESET_CNT) {
clear_bit(XD_NR, &(chip->need_reset));
chip->xd_reset_counter = 0;
chip->xd_show_cnt = 0;
} else {
chip->xd_reset_counter++;
}
chip->card_ready &= ~XD_CARD;
chip->card_fail |= XD_CARD;
chip->capacity[chip->card2lun[XD_CARD]] = 0;
chip->rw_card[chip->card2lun[XD_CARD]] = NULL;
rtsx_write_register(chip, CARD_OE, XD_OUTPUT_EN, 0);
if (!chip->ft2_fast_mode)
card_power_off(chip, XD_CARD);
disable_card_clock(chip, XD_CARD);
}
}
void do_reset_ms_card(struct rtsx_chip *chip)
{
int retval;
dev_dbg(rtsx_dev(chip), "%s: %d, card2lun = 0x%x\n", __func__,
chip->ms_reset_counter, chip->card2lun[MS_CARD]);
if (chip->card2lun[MS_CARD] >= MAX_ALLOWED_LUN_CNT) {
clear_bit(MS_NR, &(chip->need_reset));
chip->ms_reset_counter = 0;
chip->ms_show_cnt = 0;
return;
}
chip->rw_fail_cnt[chip->card2lun[MS_CARD]] = 0;
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_write_register(chip, SDIO_CTRL, 0xFF, 0);
retval = reset_ms_card(chip);
if (chip->need_release & MS_CARD)
return;
if (retval == STATUS_SUCCESS) {
clear_bit(MS_NR, &(chip->need_reset));
chip->ms_reset_counter = 0;
chip->card_ready |= MS_CARD;
chip->card_fail &= ~MS_CARD;
chip->rw_card[chip->card2lun[MS_CARD]] = ms_rw;
} else {
if (chip->ms_reset_counter >= MAX_RESET_CNT) {
clear_bit(MS_NR, &(chip->need_reset));
chip->ms_reset_counter = 0;
chip->ms_show_cnt = 0;
} else {
chip->ms_reset_counter++;
}
chip->card_ready &= ~MS_CARD;
chip->card_fail |= MS_CARD;
chip->capacity[chip->card2lun[MS_CARD]] = 0;
chip->rw_card[chip->card2lun[MS_CARD]] = NULL;
rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN, 0);
if (!chip->ft2_fast_mode)
card_power_off(chip, MS_CARD);
disable_card_clock(chip, MS_CARD);
}
}
static void release_sdio(struct rtsx_chip *chip)
{
if (chip->sd_io) {
rtsx_write_register(chip, CARD_STOP, SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
if (chip->chip_insert_with_sdio) {
chip->chip_insert_with_sdio = 0;
if (CHECK_PID(chip, 0x5288))
rtsx_write_register(chip, 0xFE5A, 0x08, 0x00);
else
rtsx_write_register(chip, 0xFE70, 0x80, 0x00);
}
rtsx_write_register(chip, SDIO_CTRL, SDIO_CD_CTRL, 0);
chip->sd_io = 0;
}
}
void rtsx_power_off_card(struct rtsx_chip *chip)
{
if ((chip->card_ready & SD_CARD) || chip->sd_io) {
sd_cleanup_work(chip);
sd_power_off_card3v3(chip);
}
if (chip->card_ready & XD_CARD) {
xd_cleanup_work(chip);
xd_power_off_card3v3(chip);
}
if (chip->card_ready & MS_CARD) {
ms_cleanup_work(chip);
ms_power_off_card3v3(chip);
}
}
void rtsx_release_cards(struct rtsx_chip *chip)
{
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if ((chip->card_ready & SD_CARD) || chip->sd_io) {
if (chip->int_reg & SD_EXIST)
sd_cleanup_work(chip);
release_sd_card(chip);
}
if (chip->card_ready & XD_CARD) {
if (chip->int_reg & XD_EXIST)
xd_cleanup_work(chip);
release_xd_card(chip);
}
if (chip->card_ready & MS_CARD) {
if (chip->int_reg & MS_EXIST)
ms_cleanup_work(chip);
release_ms_card(chip);
}
}
void rtsx_reset_cards(struct rtsx_chip *chip)
{
if (!chip->need_reset)
return;
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_force_power_on(chip, SSC_PDCTL | OC_PDCTL);
rtsx_disable_aspm(chip);
if ((chip->need_reset & SD_CARD) && chip->chip_insert_with_sdio)
clear_bit(SD_NR, &(chip->need_reset));
if (chip->need_reset & XD_CARD) {
chip->card_exist |= XD_CARD;
if (chip->xd_show_cnt >= MAX_SHOW_CNT)
do_reset_xd_card(chip);
else
chip->xd_show_cnt++;
}
if (CHECK_PID(chip, 0x5288) && CHECK_BARO_PKG(chip, QFN)) {
if (chip->card_exist & XD_CARD) {
clear_bit(SD_NR, &(chip->need_reset));
clear_bit(MS_NR, &(chip->need_reset));
}
}
if (chip->need_reset & SD_CARD) {
chip->card_exist |= SD_CARD;
if (chip->sd_show_cnt >= MAX_SHOW_CNT) {
rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
do_reset_sd_card(chip);
} else {
chip->sd_show_cnt++;
}
}
if (chip->need_reset & MS_CARD) {
chip->card_exist |= MS_CARD;
if (chip->ms_show_cnt >= MAX_SHOW_CNT)
do_reset_ms_card(chip);
else
chip->ms_show_cnt++;
}
}
void rtsx_reinit_cards(struct rtsx_chip *chip, int reset_chip)
{
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_force_power_on(chip, SSC_PDCTL | OC_PDCTL);
if (reset_chip)
rtsx_reset_chip(chip);
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if ((chip->int_reg & SD_EXIST) && (chip->need_reinit & SD_CARD)) {
release_sdio(chip);
release_sd_card(chip);
wait_timeout(100);
chip->card_exist |= SD_CARD;
do_reset_sd_card(chip);
}
if ((chip->int_reg & XD_EXIST) && (chip->need_reinit & XD_CARD)) {
release_xd_card(chip);
wait_timeout(100);
chip->card_exist |= XD_CARD;
do_reset_xd_card(chip);
}
if ((chip->int_reg & MS_EXIST) && (chip->need_reinit & MS_CARD)) {
release_ms_card(chip);
wait_timeout(100);
chip->card_exist |= MS_CARD;
do_reset_ms_card(chip);
}
chip->need_reinit = 0;
}
#ifdef DISABLE_CARD_INT
void card_cd_debounce(struct rtsx_chip *chip, unsigned long *need_reset,
unsigned long *need_release)
{
u8 release_map = 0, reset_map = 0;
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if (chip->card_exist) {
if (chip->card_exist & XD_CARD) {
if (!(chip->int_reg & XD_EXIST))
release_map |= XD_CARD;
} else if (chip->card_exist & SD_CARD) {
if (!(chip->int_reg & SD_EXIST))
release_map |= SD_CARD;
} else if (chip->card_exist & MS_CARD) {
if (!(chip->int_reg & MS_EXIST))
release_map |= MS_CARD;
}
} else {
if (chip->int_reg & XD_EXIST)
reset_map |= XD_CARD;
else if (chip->int_reg & SD_EXIST)
reset_map |= SD_CARD;
else if (chip->int_reg & MS_EXIST)
reset_map |= MS_CARD;
}
if (reset_map) {
int xd_cnt = 0, sd_cnt = 0, ms_cnt = 0;
int i;
for (i = 0; i < (DEBOUNCE_CNT); i++) {
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if (chip->int_reg & XD_EXIST)
xd_cnt++;
else
xd_cnt = 0;
if (chip->int_reg & SD_EXIST)
sd_cnt++;
else
sd_cnt = 0;
if (chip->int_reg & MS_EXIST)
ms_cnt++;
else
ms_cnt = 0;
wait_timeout(30);
}
reset_map = 0;
if (!(chip->card_exist & XD_CARD) &&
(xd_cnt > (DEBOUNCE_CNT-1)))
reset_map |= XD_CARD;
if (!(chip->card_exist & SD_CARD) &&
(sd_cnt > (DEBOUNCE_CNT-1)))
reset_map |= SD_CARD;
if (!(chip->card_exist & MS_CARD) &&
(ms_cnt > (DEBOUNCE_CNT-1)))
reset_map |= MS_CARD;
}
if (CHECK_PID(chip, 0x5288) && CHECK_BARO_PKG(chip, QFN))
rtsx_write_register(chip, HOST_SLEEP_STATE, 0xC0, 0x00);
if (need_reset)
*need_reset = reset_map;
if (need_release)
*need_release = release_map;
}
#endif
void rtsx_init_cards(struct rtsx_chip *chip)
{
if (RTSX_TST_DELINK(chip) && (rtsx_get_stat(chip) != RTSX_STAT_SS)) {
dev_dbg(rtsx_dev(chip), "Reset chip in polling thread!\n");
rtsx_reset_chip(chip);
RTSX_CLR_DELINK(chip);
}
#ifdef DISABLE_CARD_INT
card_cd_debounce(chip, &(chip->need_reset), &(chip->need_release));
#endif
if (chip->need_release) {
if (CHECK_PID(chip, 0x5288) && CHECK_BARO_PKG(chip, QFN)) {
if (chip->int_reg & XD_EXIST) {
clear_bit(SD_NR, &(chip->need_release));
clear_bit(MS_NR, &(chip->need_release));
}
}
if (!(chip->card_exist & SD_CARD) && !chip->sd_io)
clear_bit(SD_NR, &(chip->need_release));
if (!(chip->card_exist & XD_CARD))
clear_bit(XD_NR, &(chip->need_release));
if (!(chip->card_exist & MS_CARD))
clear_bit(MS_NR, &(chip->need_release));
dev_dbg(rtsx_dev(chip), "chip->need_release = 0x%x\n",
(unsigned int)(chip->need_release));
#ifdef SUPPORT_OCP
if (chip->need_release) {
if (chip->ocp_stat & (CARD_OC_NOW | CARD_OC_EVER))
rtsx_write_register(chip, OCPCLR,
CARD_OC_INT_CLR | CARD_OC_CLR,
CARD_OC_INT_CLR | CARD_OC_CLR);
chip->ocp_stat = 0;
}
#endif
if (chip->need_release) {
rtsx_set_stat(chip, RTSX_STAT_RUN);
rtsx_force_power_on(chip, SSC_PDCTL | OC_PDCTL);
}
if (chip->need_release & SD_CARD) {
clear_bit(SD_NR, &(chip->need_release));
chip->card_exist &= ~SD_CARD;
chip->card_ejected &= ~SD_CARD;
chip->card_fail &= ~SD_CARD;
CLR_BIT(chip->lun_mc, chip->card2lun[SD_CARD]);
chip->rw_fail_cnt[chip->card2lun[SD_CARD]] = 0;
rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
release_sdio(chip);
release_sd_card(chip);
}
if (chip->need_release & XD_CARD) {
clear_bit(XD_NR, &(chip->need_release));
chip->card_exist &= ~XD_CARD;
chip->card_ejected &= ~XD_CARD;
chip->card_fail &= ~XD_CARD;
CLR_BIT(chip->lun_mc, chip->card2lun[XD_CARD]);
chip->rw_fail_cnt[chip->card2lun[XD_CARD]] = 0;
release_xd_card(chip);
if (CHECK_PID(chip, 0x5288) &&
CHECK_BARO_PKG(chip, QFN))
rtsx_write_register(chip, HOST_SLEEP_STATE,
0xC0, 0xC0);
}
if (chip->need_release & MS_CARD) {
clear_bit(MS_NR, &(chip->need_release));
chip->card_exist &= ~MS_CARD;
chip->card_ejected &= ~MS_CARD;
chip->card_fail &= ~MS_CARD;
CLR_BIT(chip->lun_mc, chip->card2lun[MS_CARD]);
chip->rw_fail_cnt[chip->card2lun[MS_CARD]] = 0;
release_ms_card(chip);
}
dev_dbg(rtsx_dev(chip), "chip->card_exist = 0x%x\n",
chip->card_exist);
if (!chip->card_exist)
turn_off_led(chip, LED_GPIO);
}
if (chip->need_reset) {
dev_dbg(rtsx_dev(chip), "chip->need_reset = 0x%x\n",
(unsigned int)(chip->need_reset));
rtsx_reset_cards(chip);
}
if (chip->need_reinit) {
dev_dbg(rtsx_dev(chip), "chip->need_reinit = 0x%x\n",
(unsigned int)(chip->need_reinit));
rtsx_reinit_cards(chip, 0);
}
}
static inline u8 double_depth(u8 depth)
{
return (depth > 1) ? (depth - 1) : depth;
}
int switch_ssc_clock(struct rtsx_chip *chip, int clk)
{
int retval;
u8 N = (u8)(clk - 2), min_N, max_N;
u8 mcu_cnt, div, max_div, ssc_depth, ssc_depth_mask;
int sd_vpclk_phase_reset = 0;
if (chip->cur_clk == clk)
return STATUS_SUCCESS;
min_N = 60;
max_N = 120;
max_div = CLK_DIV_4;
dev_dbg(rtsx_dev(chip), "Switch SSC clock to %dMHz (cur_clk = %d)\n",
clk, chip->cur_clk);
if ((clk <= 2) || (N > max_N)) {
rtsx_trace(chip);
return STATUS_FAIL;
}
mcu_cnt = (u8)(125/clk + 3);
if (mcu_cnt > 7)
mcu_cnt = 7;
div = CLK_DIV_1;
while ((N < min_N) && (div < max_div)) {
N = (N + 2) * 2 - 2;
div++;
}
dev_dbg(rtsx_dev(chip), "N = %d, div = %d\n", N, div);
if (chip->ssc_en) {
ssc_depth = 0x01;
N -= 2;
} else {
ssc_depth = 0;
}
ssc_depth_mask = 0x03;
dev_dbg(rtsx_dev(chip), "ssc_depth = %d\n", ssc_depth);
rtsx_init_cmd(chip);
rtsx_add_cmd(chip, WRITE_REG_CMD, CLK_CTL, CLK_LOW_FREQ, CLK_LOW_FREQ);
rtsx_add_cmd(chip, WRITE_REG_CMD, CLK_DIV, 0xFF, (div << 4) | mcu_cnt);
rtsx_add_cmd(chip, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, 0);
rtsx_add_cmd(chip, WRITE_REG_CMD, SSC_CTL2, ssc_depth_mask, ssc_depth);
rtsx_add_cmd(chip, WRITE_REG_CMD, SSC_DIV_N_0, 0xFF, N);
rtsx_add_cmd(chip, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, SSC_RSTB);
if (sd_vpclk_phase_reset) {
rtsx_add_cmd(chip, WRITE_REG_CMD, SD_VPCLK0_CTL,
PHASE_NOT_RESET, 0);
rtsx_add_cmd(chip, WRITE_REG_CMD, SD_VPCLK0_CTL,
PHASE_NOT_RESET, PHASE_NOT_RESET);
}
retval = rtsx_send_cmd(chip, 0, WAIT_TIME);
if (retval < 0) {
rtsx_trace(chip);
return STATUS_ERROR;
}
udelay(10);
retval = rtsx_write_register(chip, CLK_CTL, CLK_LOW_FREQ, 0);
if (retval) {
rtsx_trace(chip);
return retval;
}
chip->cur_clk = clk;
return STATUS_SUCCESS;
}
int switch_normal_clock(struct rtsx_chip *chip, int clk)
{
int retval;
u8 sel, div, mcu_cnt;
int sd_vpclk_phase_reset = 0;
if (chip->cur_clk == clk)
return STATUS_SUCCESS;
switch (clk) {
case CLK_20:
dev_dbg(rtsx_dev(chip), "Switch clock to 20MHz\n");
sel = SSC_80;
div = CLK_DIV_4;
mcu_cnt = 7;
break;
case CLK_30:
dev_dbg(rtsx_dev(chip), "Switch clock to 30MHz\n");
sel = SSC_120;
div = CLK_DIV_4;
mcu_cnt = 7;
break;
case CLK_40:
dev_dbg(rtsx_dev(chip), "Switch clock to 40MHz\n");
sel = SSC_80;
div = CLK_DIV_2;
mcu_cnt = 7;
break;
case CLK_50:
dev_dbg(rtsx_dev(chip), "Switch clock to 50MHz\n");
sel = SSC_100;
div = CLK_DIV_2;
mcu_cnt = 6;
break;
case CLK_60:
dev_dbg(rtsx_dev(chip), "Switch clock to 60MHz\n");
sel = SSC_120;
div = CLK_DIV_2;
mcu_cnt = 6;
break;
case CLK_80:
dev_dbg(rtsx_dev(chip), "Switch clock to 80MHz\n");
sel = SSC_80;
div = CLK_DIV_1;
mcu_cnt = 5;
break;
case CLK_100:
dev_dbg(rtsx_dev(chip), "Switch clock to 100MHz\n");
sel = SSC_100;
div = CLK_DIV_1;
mcu_cnt = 5;
break;
case CLK_120:
dev_dbg(rtsx_dev(chip), "Switch clock to 120MHz\n");
sel = SSC_120;
div = CLK_DIV_1;
mcu_cnt = 5;
break;
case CLK_150:
dev_dbg(rtsx_dev(chip), "Switch clock to 150MHz\n");
sel = SSC_150;
div = CLK_DIV_1;
mcu_cnt = 4;
break;
case CLK_200:
dev_dbg(rtsx_dev(chip), "Switch clock to 200MHz\n");
sel = SSC_200;
div = CLK_DIV_1;
mcu_cnt = 4;
break;
default:
dev_dbg(rtsx_dev(chip), "Try to switch to an illegal clock (%d)\n",
clk);
rtsx_trace(chip);
return STATUS_FAIL;
}
retval = rtsx_write_register(chip, CLK_CTL, 0xFF, CLK_LOW_FREQ);
if (retval) {
rtsx_trace(chip);
return retval;
}
if (sd_vpclk_phase_reset) {
retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
PHASE_NOT_RESET, 0);
if (retval) {
rtsx_trace(chip);
return retval;
}
retval = rtsx_write_register(chip, SD_VPCLK1_CTL,
PHASE_NOT_RESET, 0);
if (retval) {
rtsx_trace(chip);
return retval;
}
}
retval = rtsx_write_register(chip, CLK_DIV, 0xFF,
(div << 4) | mcu_cnt);
if (retval) {
rtsx_trace(chip);
return retval;
}
retval = rtsx_write_register(chip, CLK_SEL, 0xFF, sel);
if (retval) {
rtsx_trace(chip);
return retval;
}
if (sd_vpclk_phase_reset) {
udelay(200);
retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
PHASE_NOT_RESET, PHASE_NOT_RESET);
if (retval) {
rtsx_trace(chip);
return retval;
}
retval = rtsx_write_register(chip, SD_VPCLK1_CTL,
PHASE_NOT_RESET, PHASE_NOT_RESET);
if (retval) {
rtsx_trace(chip);
return retval;
}
udelay(200);
}
retval = rtsx_write_register(chip, CLK_CTL, 0xFF, 0);
if (retval) {
rtsx_trace(chip);
return retval;
}
chip->cur_clk = clk;
return STATUS_SUCCESS;
}
void trans_dma_enable(enum dma_data_direction dir, struct rtsx_chip *chip,
u32 byte_cnt, u8 pack_size)
{
if (pack_size > DMA_1024)
pack_size = DMA_512;
rtsx_add_cmd(chip, WRITE_REG_CMD, IRQSTAT0, DMA_DONE_INT, DMA_DONE_INT);
rtsx_add_cmd(chip, WRITE_REG_CMD, DMATC3, 0xFF, (u8)(byte_cnt >> 24));
rtsx_add_cmd(chip, WRITE_REG_CMD, DMATC2, 0xFF, (u8)(byte_cnt >> 16));
rtsx_add_cmd(chip, WRITE_REG_CMD, DMATC1, 0xFF, (u8)(byte_cnt >> 8));
rtsx_add_cmd(chip, WRITE_REG_CMD, DMATC0, 0xFF, (u8)byte_cnt);
if (dir == DMA_FROM_DEVICE) {
rtsx_add_cmd(chip, WRITE_REG_CMD, DMACTL,
0x03 | DMA_PACK_SIZE_MASK,
DMA_DIR_FROM_CARD | DMA_EN | pack_size);
} else {
rtsx_add_cmd(chip, WRITE_REG_CMD, DMACTL,
0x03 | DMA_PACK_SIZE_MASK,
DMA_DIR_TO_CARD | DMA_EN | pack_size);
}
rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01, RING_BUFFER);
}
int enable_card_clock(struct rtsx_chip *chip, u8 card)
{
int retval;
u8 clk_en = 0;
if (card & XD_CARD)
clk_en |= XD_CLK_EN;
if (card & SD_CARD)
clk_en |= SD_CLK_EN;
if (card & MS_CARD)
clk_en |= MS_CLK_EN;
retval = rtsx_write_register(chip, CARD_CLK_EN, clk_en, clk_en);
if (retval) {
rtsx_trace(chip);
return retval;
}
return STATUS_SUCCESS;
}
int disable_card_clock(struct rtsx_chip *chip, u8 card)
{
int retval;
u8 clk_en = 0;
if (card & XD_CARD)
clk_en |= XD_CLK_EN;
if (card & SD_CARD)
clk_en |= SD_CLK_EN;
if (card & MS_CARD)
clk_en |= MS_CLK_EN;
retval = rtsx_write_register(chip, CARD_CLK_EN, clk_en, 0);
if (retval) {
rtsx_trace(chip);
return retval;
}
return STATUS_SUCCESS;
}
int card_power_on(struct rtsx_chip *chip, u8 card)
{
int retval;
u8 mask, val1, val2;
if (CHECK_LUN_MODE(chip, SD_MS_2LUN) && (card == MS_CARD)) {
mask = MS_POWER_MASK;
val1 = MS_PARTIAL_POWER_ON;
val2 = MS_POWER_ON;
} else {
mask = SD_POWER_MASK;
val1 = SD_PARTIAL_POWER_ON;
val2 = SD_POWER_ON;
}
rtsx_init_cmd(chip);
rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val1);
retval = rtsx_send_cmd(chip, 0, 100);
if (retval != STATUS_SUCCESS) {
rtsx_trace(chip);
return STATUS_FAIL;
}
udelay(chip->pmos_pwr_on_interval);
rtsx_init_cmd(chip);
rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val2);
retval = rtsx_send_cmd(chip, 0, 100);
if (retval != STATUS_SUCCESS) {
rtsx_trace(chip);
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
int card_power_off(struct rtsx_chip *chip, u8 card)
{
int retval;
u8 mask, val;
if (CHECK_LUN_MODE(chip, SD_MS_2LUN) && (card == MS_CARD)) {
mask = MS_POWER_MASK;
val = MS_POWER_OFF;
} else {
mask = SD_POWER_MASK;
val = SD_POWER_OFF;
}
retval = rtsx_write_register(chip, CARD_PWR_CTL, mask, val);
if (retval) {
rtsx_trace(chip);
return retval;
}
return STATUS_SUCCESS;
}
int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
u32 sec_addr, u16 sec_cnt)
{
int retval;
unsigned int lun = SCSI_LUN(srb);
int i;
if (chip->rw_card[lun] == NULL) {
rtsx_trace(chip);
return STATUS_FAIL;
}
for (i = 0; i < 3; i++) {
chip->rw_need_retry = 0;
retval = chip->rw_card[lun](srb, chip, sec_addr, sec_cnt);
if (retval != STATUS_SUCCESS) {
if (rtsx_check_chip_exist(chip) != STATUS_SUCCESS) {
rtsx_release_chip(chip);
rtsx_trace(chip);
return STATUS_FAIL;
}
if (detect_card_cd(chip, chip->cur_card) !=
STATUS_SUCCESS) {
rtsx_trace(chip);
return STATUS_FAIL;
}
if (!chip->rw_need_retry) {
dev_dbg(rtsx_dev(chip), "RW fail, but no need to retry\n");
break;
}
} else {
chip->rw_need_retry = 0;
break;
}
dev_dbg(rtsx_dev(chip), "Retry RW, (i = %d)\n", i);
}
return retval;
}
int card_share_mode(struct rtsx_chip *chip, int card)
{
int retval;
u8 mask, value;
if (CHECK_PID(chip, 0x5208)) {
mask = CARD_SHARE_MASK;
if (card == SD_CARD)
value = CARD_SHARE_48_SD;
else if (card == MS_CARD)
value = CARD_SHARE_48_MS;
else if (card == XD_CARD)
value = CARD_SHARE_48_XD;
else {
rtsx_trace(chip);
return STATUS_FAIL;
}
} else if (CHECK_PID(chip, 0x5288)) {
mask = 0x03;
if (card == SD_CARD)
value = CARD_SHARE_BAROSSA_SD;
else if (card == MS_CARD)
value = CARD_SHARE_BAROSSA_MS;
else if (card == XD_CARD)
value = CARD_SHARE_BAROSSA_XD;
else {
rtsx_trace(chip);
return STATUS_FAIL;
}
} else {
rtsx_trace(chip);
return STATUS_FAIL;
}
retval = rtsx_write_register(chip, CARD_SHARE_MODE, mask, value);
if (retval) {
rtsx_trace(chip);
return retval;
}
return STATUS_SUCCESS;
}
int select_card(struct rtsx_chip *chip, int card)
{
int retval;
if (chip->cur_card != card) {
u8 mod;
if (card == SD_CARD)
mod = SD_MOD_SEL;
else if (card == MS_CARD)
mod = MS_MOD_SEL;
else if (card == XD_CARD)
mod = XD_MOD_SEL;
else if (card == SPI_CARD)
mod = SPI_MOD_SEL;
else {
rtsx_trace(chip);
return STATUS_FAIL;
}
retval = rtsx_write_register(chip, CARD_SELECT, 0x07, mod);
if (retval) {
rtsx_trace(chip);
return retval;
}
chip->cur_card = card;
retval = card_share_mode(chip, card);
if (retval != STATUS_SUCCESS) {
rtsx_trace(chip);
return STATUS_FAIL;
}
}
return STATUS_SUCCESS;
}
void toggle_gpio(struct rtsx_chip *chip, u8 gpio)
{
u8 temp_reg;
rtsx_read_register(chip, CARD_GPIO, &temp_reg);
temp_reg ^= (0x01 << gpio);
rtsx_write_register(chip, CARD_GPIO, 0xFF, temp_reg);
}
void turn_on_led(struct rtsx_chip *chip, u8 gpio)
{
if (CHECK_PID(chip, 0x5288))
rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio),
(u8)(1 << gpio));
else
rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), 0);
}
void turn_off_led(struct rtsx_chip *chip, u8 gpio)
{
if (CHECK_PID(chip, 0x5288))
rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), 0);
else
rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio),
(u8)(1 << gpio));
}
int detect_card_cd(struct rtsx_chip *chip, int card)
{
u32 card_cd, status;
if (card == SD_CARD) {
card_cd = SD_EXIST;
} else if (card == MS_CARD) {
card_cd = MS_EXIST;
} else if (card == XD_CARD) {
card_cd = XD_EXIST;
} else {
dev_dbg(rtsx_dev(chip), "Wrong card type: 0x%x\n", card);
rtsx_trace(chip);
return STATUS_FAIL;
}
status = rtsx_readl(chip, RTSX_BIPR);
if (!(status & card_cd)) {
rtsx_trace(chip);
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
int check_card_exist(struct rtsx_chip *chip, unsigned int lun)
{
if (chip->card_exist & chip->lun2card[lun])
return 1;
return 0;
}
int check_card_ready(struct rtsx_chip *chip, unsigned int lun)
{
if (chip->card_ready & chip->lun2card[lun])
return 1;
return 0;
}
int check_card_wp(struct rtsx_chip *chip, unsigned int lun)
{
if (chip->card_wp & chip->lun2card[lun])
return 1;
return 0;
}
int check_card_fail(struct rtsx_chip *chip, unsigned int lun)
{
if (chip->card_fail & chip->lun2card[lun])
return 1;
return 0;
}
int check_card_ejected(struct rtsx_chip *chip, unsigned int lun)
{
if (chip->card_ejected & chip->lun2card[lun])
return 1;
return 0;
}
u8 get_lun_card(struct rtsx_chip *chip, unsigned int lun)
{
if ((chip->card_ready & chip->lun2card[lun]) == XD_CARD)
return (u8)XD_CARD;
else if ((chip->card_ready & chip->lun2card[lun]) == SD_CARD)
return (u8)SD_CARD;
else if ((chip->card_ready & chip->lun2card[lun]) == MS_CARD)
return (u8)MS_CARD;
return 0;
}
void eject_card(struct rtsx_chip *chip, unsigned int lun)
{
do_remaining_work(chip);
if ((chip->card_ready & chip->lun2card[lun]) == SD_CARD) {
release_sd_card(chip);
chip->card_ejected |= SD_CARD;
chip->card_ready &= ~SD_CARD;
chip->capacity[lun] = 0;
} else if ((chip->card_ready & chip->lun2card[lun]) == XD_CARD) {
release_xd_card(chip);
chip->card_ejected |= XD_CARD;
chip->card_ready &= ~XD_CARD;
chip->capacity[lun] = 0;
} else if ((chip->card_ready & chip->lun2card[lun]) == MS_CARD) {
release_ms_card(chip);
chip->card_ejected |= MS_CARD;
chip->card_ready &= ~MS_CARD;
chip->capacity[lun] = 0;
}
}