mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-11-19 18:12:54 -05:00
imx233: completely rework the sd driver
Change-Id: I456df0d9f5eaee435bdfd5a3f667055715e53d2a
This commit is contained in:
Amaury Pouly
parent
3f59cf9708
commit
8b53c0f9a9
3 changed files with 246 additions and 125 deletions
|
|
@ -24,62 +24,107 @@
|
|||
#include "sdmmc.h"
|
||||
#include "ssp-imx233.h"
|
||||
#include "pinctrl-imx233.h"
|
||||
#include "partitions-imx233.h"
|
||||
#include "button-target.h"
|
||||
#include "fat.h"
|
||||
#include "disk.h"
|
||||
#include "usb.h"
|
||||
#include "debug.h"
|
||||
|
||||
/**
|
||||
* This code assumes a single SD card slot
|
||||
*/
|
||||
struct sd_config_t
|
||||
{
|
||||
const char *name; /* name(for debug) */
|
||||
int flags; /* flags */
|
||||
int power_pin; /* power pin */
|
||||
int power_delay; /* extra power up delay */
|
||||
int ssp; /* associated ssp block */
|
||||
};
|
||||
|
||||
/* flags */
|
||||
#define POWER_PIN (1 << 0)
|
||||
#define POWER_INVERTED (1 << 1)
|
||||
#define REMOVABLE (1 << 2)
|
||||
#define DETECT_INVERTED (1 << 3)
|
||||
#define POWER_DELAY (1 << 4)
|
||||
#define WINDOW (1 << 5)
|
||||
|
||||
#define PIN(bank,pin) ((bank) << 5 | (pin))
|
||||
#define PIN2BANK(v) ((v) >> 5)
|
||||
#define PIN2PIN(v) ((v) & 0x1f)
|
||||
|
||||
struct sd_config_t sd_config[] =
|
||||
{
|
||||
#ifdef SANSA_FUZEPLUS
|
||||
#define SD_SSP 1
|
||||
/* The Fuze+ uses pin #B0P8 for power */
|
||||
{
|
||||
.name = "microSD",
|
||||
.flags = POWER_PIN | POWER_INVERTED | REMOVABLE,
|
||||
.power_pin = PIN(0, 8),
|
||||
.ssp = 1
|
||||
},
|
||||
#else
|
||||
#error You need to configure the ssp to use
|
||||
#error You need to write the sd config!
|
||||
#endif
|
||||
};
|
||||
|
||||
static tCardInfo card_info;
|
||||
static long sd_stack [(DEFAULT_STACK_SIZE*2 + 0x200)/sizeof(long)];
|
||||
#define SD_NUM_DRIVES (sizeof(sd_config) / sizeof(sd_config[0]))
|
||||
|
||||
#define SD_CONF(drive) sd_config[drive]
|
||||
#define SD_FLAGS(drive) SD_CONF(drive).flags
|
||||
#define SD_SSP(drive) SD_CONF(drive).ssp
|
||||
#define IF_FIRST_DRIVE(drive) if((drive) == 0)
|
||||
#define IF_SECOND_DRIVE(drive) if((drive) == 1)
|
||||
|
||||
static tCardInfo card_info[SD_NUM_DRIVES];
|
||||
static long sd_stack[(DEFAULT_STACK_SIZE*2 + 0x200)/sizeof(long)];
|
||||
static struct mutex sd_mutex;
|
||||
static const char sd_thread_name[] = "sd";
|
||||
static struct event_queue sd_queue;
|
||||
static int sd_first_drive;
|
||||
static int last_disk_activity;
|
||||
static unsigned sd_window_start[SD_NUM_DRIVES];
|
||||
static unsigned sd_window_end[SD_NUM_DRIVES];
|
||||
|
||||
static void sd_detect_callback(int ssp)
|
||||
{
|
||||
(void)ssp;
|
||||
/* This is called only if the state was stable for 300ms - check state
|
||||
* and post appropriate event. */
|
||||
if(imx233_ssp_sdmmc_detect(SD_SSP))
|
||||
if(imx233_ssp_sdmmc_detect(ssp))
|
||||
queue_broadcast(SYS_HOTSWAP_INSERTED, 0);
|
||||
else
|
||||
queue_broadcast(SYS_HOTSWAP_EXTRACTED, 0);
|
||||
imx233_ssp_sdmmc_setup_detect(SD_SSP, true, sd_detect_callback, false);
|
||||
imx233_ssp_sdmmc_setup_detect(ssp, true, sd_detect_callback, false,
|
||||
imx233_ssp_sdmmc_is_detect_inverted(ssp));
|
||||
}
|
||||
|
||||
void sd_power(bool on)
|
||||
void sd_power(int drive, bool on)
|
||||
{
|
||||
#ifdef SANSA_FUZEPLUS
|
||||
/* The Fuze+ uses pin B0P8 for whatever reason, power ? */
|
||||
imx233_pinctrl_acquire_pin(0, 8, "sd power");
|
||||
imx233_set_pin_function(0, 8, PINCTRL_FUNCTION_GPIO);
|
||||
imx233_enable_gpio_output(0, 8, true);
|
||||
imx233_set_gpio_output(0, 8, !on);
|
||||
/* disable pull ups when not needed to save power */
|
||||
/* power chip if needed */
|
||||
if(SD_FLAGS(drive) & POWER_PIN)
|
||||
{
|
||||
int bank = PIN2BANK(SD_CONF(drive).power_pin);
|
||||
int pin = PIN2PIN(SD_CONF(drive).power_pin);
|
||||
imx233_pinctrl_acquire_pin(bank, pin, "sd power");
|
||||
imx233_set_pin_function(bank, pin, PINCTRL_FUNCTION_GPIO);
|
||||
imx233_enable_gpio_output(bank, pin, true);
|
||||
if(SD_FLAGS(drive) & POWER_INVERTED)
|
||||
imx233_set_gpio_output(bank, pin, !on);
|
||||
else
|
||||
imx233_set_gpio_output(bank, pin, on);
|
||||
}
|
||||
if(SD_FLAGS(drive) & POWER_DELAY)
|
||||
sleep(SD_CONF(drive).power_delay);
|
||||
/* setup pins, never use alternatives pin on SSP1 because these are force
|
||||
* bus width >= 4 and SD cannot use more than 4 data lines. */
|
||||
if(SD_SSP(drive) == 1)
|
||||
imx233_ssp_setup_ssp1_sd_mmc_pins(on, 4, PINCTRL_DRIVE_4mA, false);
|
||||
#endif
|
||||
else
|
||||
imx233_ssp_setup_ssp2_sd_mmc_pins(on, 4, PINCTRL_DRIVE_4mA);
|
||||
}
|
||||
|
||||
void sd_enable(bool on)
|
||||
{
|
||||
static int sd_enable = 2; /* 2 means not on and not off, for init purpose */
|
||||
if(sd_enable == on)
|
||||
return;
|
||||
|
||||
sd_enable = on;
|
||||
(void) on;
|
||||
}
|
||||
|
||||
#define MCI_NO_RESP 0
|
||||
|
|
@ -89,15 +134,15 @@ void sd_enable(bool on)
|
|||
#define MCI_NOCRC (1<<3)
|
||||
#define MCI_BUSY (1<<4)
|
||||
|
||||
static bool send_cmd(uint8_t cmd, uint32_t arg, uint32_t flags, uint32_t *resp)
|
||||
static bool send_cmd(int drive, uint8_t cmd, uint32_t arg, uint32_t flags, uint32_t *resp)
|
||||
{
|
||||
if((flags & MCI_ACMD) && !send_cmd(SD_APP_CMD, card_info.rca, MCI_RESP, resp))
|
||||
if((flags & MCI_ACMD) && !send_cmd(drive, SD_APP_CMD, card_info[drive].rca, MCI_RESP, resp))
|
||||
return false;
|
||||
|
||||
enum imx233_ssp_resp_t resp_type = (flags & MCI_LONG_RESP) ? SSP_LONG_RESP :
|
||||
(flags & MCI_RESP) ? SSP_SHORT_RESP : SSP_NO_RESP;
|
||||
enum imx233_ssp_error_t ret = imx233_ssp_sd_mmc_transfer(SD_SSP, cmd, arg,
|
||||
resp_type, NULL, 0, !!(flags & MCI_BUSY), false, resp);
|
||||
enum imx233_ssp_error_t ret = imx233_ssp_sd_mmc_transfer(SD_SSP(drive), cmd,
|
||||
arg, resp_type, NULL, 0, !!(flags & MCI_BUSY), false, resp);
|
||||
if(resp_type == SSP_LONG_RESP)
|
||||
{
|
||||
/* Our SD codes assume most significant word first, so reverse resp */
|
||||
|
|
@ -111,7 +156,7 @@ static bool send_cmd(uint8_t cmd, uint32_t arg, uint32_t flags, uint32_t *resp)
|
|||
return ret == SSP_SUCCESS;
|
||||
}
|
||||
|
||||
static int sd_wait_for_tran_state(void)
|
||||
static int sd_wait_for_tran_state(int drive)
|
||||
{
|
||||
unsigned long response;
|
||||
unsigned int timeout = current_tick + 5*HZ;
|
||||
|
|
@ -119,7 +164,7 @@ static int sd_wait_for_tran_state(void)
|
|||
|
||||
while (1)
|
||||
{
|
||||
while(!send_cmd(SD_SEND_STATUS, card_info.rca, MCI_RESP, &response) && cmd_retry > 0)
|
||||
while(!send_cmd(drive, SD_SEND_STATUS, card_info[drive].rca, MCI_RESP, &response) && cmd_retry > 0)
|
||||
cmd_retry--;
|
||||
|
||||
if(cmd_retry <= 0)
|
||||
|
|
@ -135,33 +180,35 @@ static int sd_wait_for_tran_state(void)
|
|||
}
|
||||
}
|
||||
|
||||
static int sd_init_card(void)
|
||||
static int sd_init_card(int drive)
|
||||
{
|
||||
sd_enable(false);
|
||||
sd_power(false);
|
||||
sd_power(true);
|
||||
sd_enable(true);
|
||||
imx233_ssp_start(SD_SSP);
|
||||
imx233_ssp_softreset(SD_SSP);
|
||||
imx233_ssp_set_mode(SD_SSP, HW_SSP_CTRL1__SSP_MODE__SD_MMC);
|
||||
/* sanity check against bad configuration of SD_NUM_DRIVES/NUM_DRIVES */
|
||||
if((unsigned)drive >= SD_NUM_DRIVES)
|
||||
panicf("drive >= SD_NUM_DRIVES in sd_init_card!");
|
||||
int ssp = SD_SSP(drive);
|
||||
sd_power(drive, false);
|
||||
sd_power(drive, true);
|
||||
imx233_ssp_start(ssp);
|
||||
imx233_ssp_softreset(ssp);
|
||||
imx233_ssp_set_mode(ssp, HW_SSP_CTRL1__SSP_MODE__SD_MMC);
|
||||
/* SSPCLK @ 96MHz
|
||||
* gives bitrate of 96000 / 240 / 1 = 400kHz */
|
||||
imx233_ssp_set_timings(SD_SSP, 240, 0, 0xffff);
|
||||
imx233_ssp_set_timings(ssp, 240, 0, 0xffff);
|
||||
|
||||
imx233_ssp_sd_mmc_power_up_sequence(SD_SSP);
|
||||
imx233_ssp_set_bus_width(SD_SSP, 1);
|
||||
imx233_ssp_set_block_size(SD_SSP, 9);
|
||||
imx233_ssp_sd_mmc_power_up_sequence(ssp);
|
||||
imx233_ssp_set_bus_width(ssp, 1);
|
||||
imx233_ssp_set_block_size(ssp, 9);
|
||||
|
||||
card_info.rca = 0;
|
||||
card_info[drive].rca = 0;
|
||||
bool sd_v2 = false;
|
||||
uint32_t resp;
|
||||
long init_timeout;
|
||||
/* go to idle state */
|
||||
if(!send_cmd(SD_GO_IDLE_STATE, 0, MCI_NO_RESP, NULL))
|
||||
if(!send_cmd(drive, SD_GO_IDLE_STATE, 0, MCI_NO_RESP, NULL))
|
||||
return -1;
|
||||
/* CMD8 Check for v2 sd card. Must be sent before using ACMD41
|
||||
Non v2 cards will not respond to this command */
|
||||
if(send_cmd(SD_SEND_IF_COND, 0x1AA, MCI_RESP, &resp))
|
||||
if(send_cmd(drive, SD_SEND_IF_COND, 0x1AA, MCI_RESP, &resp))
|
||||
if((resp & 0xFFF) == 0x1AA)
|
||||
sd_v2 = true;
|
||||
/* timeout for initialization is 1sec, from SD Specification 2.00 */
|
||||
|
|
@ -173,67 +220,84 @@ static int sd_init_card(void)
|
|||
return -2;
|
||||
|
||||
/* ACMD41 For v2 cards set HCS bit[30] & send host voltage range to all */
|
||||
if(!send_cmd(SD_APP_OP_COND, (0x00FF8000 | (sd_v2 ? 1<<30 : 0)),
|
||||
MCI_ACMD|MCI_NOCRC|MCI_RESP, &card_info.ocr))
|
||||
if(!send_cmd(drive, SD_APP_OP_COND, (0x00FF8000 | (sd_v2 ? 1<<30 : 0)),
|
||||
MCI_ACMD|MCI_NOCRC|MCI_RESP, &card_info[drive].ocr))
|
||||
return -100;
|
||||
} while(!(card_info.ocr & (1<<31)));
|
||||
} while(!(card_info[drive].ocr & (1<<31)));
|
||||
|
||||
/* CMD2 send CID */
|
||||
if(!send_cmd(SD_ALL_SEND_CID, 0, MCI_RESP|MCI_LONG_RESP, card_info.cid))
|
||||
if(!send_cmd(drive, SD_ALL_SEND_CID, 0, MCI_RESP|MCI_LONG_RESP, card_info[drive].cid))
|
||||
return -3;
|
||||
|
||||
/* CMD3 send RCA */
|
||||
if(!send_cmd(SD_SEND_RELATIVE_ADDR, 0, MCI_RESP, &card_info.rca))
|
||||
if(!send_cmd(drive, SD_SEND_RELATIVE_ADDR, 0, MCI_RESP, &card_info[drive].rca))
|
||||
return -4;
|
||||
|
||||
/* Try to switch V2 cards to HS timings, non HS seem to ignore this */
|
||||
if(sd_v2)
|
||||
{
|
||||
/* CMD7 w/rca: Select card to put it in TRAN state */
|
||||
if(!send_cmd(SD_SELECT_CARD, card_info.rca, MCI_RESP, NULL))
|
||||
if(!send_cmd(drive, SD_SELECT_CARD, card_info[drive].rca, MCI_RESP, NULL))
|
||||
return -5;
|
||||
|
||||
if(sd_wait_for_tran_state())
|
||||
if(sd_wait_for_tran_state(drive))
|
||||
return -6;
|
||||
|
||||
/* CMD6 */
|
||||
if(!send_cmd(SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL))
|
||||
if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL))
|
||||
return -7;
|
||||
sleep(HZ/10);
|
||||
|
||||
/* go back to STBY state so we can read csd */
|
||||
/* CMD7 w/rca=0: Deselect card to put it in STBY state */
|
||||
if(!send_cmd(SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
||||
if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
||||
return -8;
|
||||
}
|
||||
|
||||
/* CMD9 send CSD */
|
||||
if(!send_cmd(SD_SEND_CSD, card_info.rca, MCI_RESP|MCI_LONG_RESP, card_info.csd))
|
||||
if(!send_cmd(drive, SD_SEND_CSD, card_info[drive].rca, MCI_RESP|MCI_LONG_RESP, card_info[drive].csd))
|
||||
return -9;
|
||||
|
||||
sd_parse_csd(&card_info);
|
||||
sd_parse_csd(&card_info[drive]);
|
||||
|
||||
/* SSPCLK @ 96MHz
|
||||
* gives bitrate of 96 / 4 / 1 = 24MHz */
|
||||
imx233_ssp_set_timings(SD_SSP, 4, 0, 0xffff);
|
||||
imx233_ssp_set_timings(ssp, 4, 0, 0xffff);
|
||||
|
||||
/* CMD7 w/rca: Select card to put it in TRAN state */
|
||||
if(!send_cmd(SD_SELECT_CARD, card_info.rca, MCI_RESP, &resp))
|
||||
if(!send_cmd(drive, SD_SELECT_CARD, card_info[drive].rca, MCI_RESP, &resp))
|
||||
return -12;
|
||||
if(sd_wait_for_tran_state() < 0)
|
||||
if(sd_wait_for_tran_state(drive) < 0)
|
||||
return -13;
|
||||
|
||||
/* ACMD6: set bus width to 4-bit */
|
||||
if(!send_cmd(SD_SET_BUS_WIDTH, 2, MCI_RESP|MCI_ACMD, &resp))
|
||||
if(!send_cmd(drive, SD_SET_BUS_WIDTH, 2, MCI_RESP|MCI_ACMD, &resp))
|
||||
return -15;
|
||||
/* ACMD42: disconnect the pull-up resistor on CD/DAT3 */
|
||||
if(!send_cmd(SD_SET_CLR_CARD_DETECT, 0, MCI_RESP|MCI_ACMD, &resp))
|
||||
if(!send_cmd(drive, SD_SET_CLR_CARD_DETECT, 0, MCI_RESP|MCI_ACMD, &resp))
|
||||
return -17;
|
||||
|
||||
/* Switch to 4-bit */
|
||||
imx233_ssp_set_bus_width(SD_SSP, 4);
|
||||
imx233_ssp_set_bus_width(ssp, 4);
|
||||
|
||||
card_info.initialized = 1;
|
||||
card_info[drive].initialized = 1;
|
||||
|
||||
/* compute window */
|
||||
sd_window_start[drive] = 0;
|
||||
sd_window_end[drive] = card_info[drive].numblocks;
|
||||
if((SD_FLAGS(drive) & WINDOW) && imx233_partitions_is_window_enabled())
|
||||
{
|
||||
/* WARNING: sd_first_drive is not set at this point */
|
||||
uint8_t mbr[512];
|
||||
int ret = sd_read_sectors(IF_MD2(drive,) 0, 1, mbr);
|
||||
if(ret)
|
||||
panicf("Cannot read MBR: %d", ret);
|
||||
ret = imx233_partitions_compute_window(mbr, &sd_window_start[drive],
|
||||
&sd_window_end[drive]);
|
||||
if(ret)
|
||||
panicf("cannot compute partitions window: %d", ret);
|
||||
card_info[drive].numblocks = sd_window_end[drive] - sd_window_start[drive];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -253,29 +317,36 @@ static void sd_thread(void)
|
|||
case SYS_HOTSWAP_EXTRACTED:
|
||||
{
|
||||
int microsd_init = 1;
|
||||
fat_lock(); /* lock-out FAT activity first -
|
||||
prevent deadlocking via disk_mount that
|
||||
would cause a reverse-order attempt with
|
||||
another thread */
|
||||
mutex_lock(&sd_mutex); /* lock-out card activity - direct calls
|
||||
into driver that bypass the fat cache */
|
||||
/* lock-out FAT activity first -
|
||||
* prevent deadlocking via disk_mount that
|
||||
* would cause a reverse-order attempt with
|
||||
* another thread */
|
||||
fat_lock();
|
||||
/* lock-out card activity - direct calls
|
||||
* into driver that bypass the fat cache */
|
||||
mutex_lock(&sd_mutex);
|
||||
|
||||
/* We now have exclusive control of fat cache and sd */
|
||||
|
||||
disk_unmount(sd_first_drive); /* release "by force", ensure file
|
||||
descriptors aren't leaked and any busy
|
||||
ones are invalid if mounting */
|
||||
/* We now have exclusive control of fat cache and sd.
|
||||
* Release "by force", ensure file
|
||||
* descriptors aren't leaked and any busy
|
||||
* ones are invalid if mounting. */
|
||||
for(unsigned drive = 0; drive < SD_NUM_DRIVES; drive++)
|
||||
{
|
||||
/* Skip non-removable drivers */
|
||||
if(!sd_removable(drive))
|
||||
continue;
|
||||
disk_unmount(sd_first_drive + drive);
|
||||
/* Force card init for new card, re-init for re-inserted one or
|
||||
* clear if the last attempt to init failed with an error. */
|
||||
card_info.initialized = 0;
|
||||
card_info[drive].initialized = 0;
|
||||
|
||||
if(ev.id == SYS_HOTSWAP_INSERTED)
|
||||
{
|
||||
microsd_init = sd_init_card();
|
||||
microsd_init = sd_init_card(drive);
|
||||
if(microsd_init < 0) /* initialisation failed */
|
||||
panicf("microSD init failed : %d", microsd_init);
|
||||
panicf("%s init failed : %d", SD_CONF(drive).name, microsd_init);
|
||||
|
||||
microsd_init = disk_mount(sd_first_drive); /* 0 if fail */
|
||||
microsd_init = disk_mount(sd_first_drive + drive); /* 0 if fail */
|
||||
}
|
||||
/*
|
||||
* Mount succeeded, or this was an EXTRACTED event,
|
||||
|
|
@ -283,15 +354,14 @@ static void sd_thread(void)
|
|||
*/
|
||||
if(microsd_init)
|
||||
queue_broadcast(SYS_FS_CHANGED, 0);
|
||||
|
||||
sd_enable(false);
|
||||
}
|
||||
/* Access is now safe */
|
||||
mutex_unlock(&sd_mutex);
|
||||
fat_unlock();
|
||||
break;
|
||||
}
|
||||
case SYS_TIMEOUT:
|
||||
if(!TIME_BEFORE(current_tick, last_disk_activity+(3*HZ)))
|
||||
if(!TIME_BEFORE(current_tick, last_disk_activity +3 * HZ))
|
||||
sd_enable(false);
|
||||
break;
|
||||
case SYS_USB_CONNECTED:
|
||||
|
|
@ -309,8 +379,13 @@ int sd_init(void)
|
|||
queue_init(&sd_queue, true);
|
||||
create_thread(sd_thread, sd_stack, sizeof(sd_stack), 0,
|
||||
sd_thread_name IF_PRIO(, PRIORITY_USER_INTERFACE) IF_COP(, CPU));
|
||||
sd_enable(false);
|
||||
imx233_ssp_sdmmc_setup_detect(SD_SSP, true, sd_detect_callback, false);
|
||||
|
||||
for(unsigned drive = 0; drive < SD_NUM_DRIVES; drive++)
|
||||
{
|
||||
if(SD_FLAGS(drive) & REMOVABLE)
|
||||
imx233_ssp_sdmmc_setup_detect(SD_SSP(drive), true, sd_detect_callback,
|
||||
false, SD_FLAGS(drive) & DETECT_INVERTED);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -324,21 +399,28 @@ static int transfer_sectors(IF_MD2(int drive,) unsigned long start, int count, v
|
|||
last_disk_activity = current_tick;
|
||||
|
||||
mutex_lock(&sd_mutex);
|
||||
sd_enable(true);
|
||||
|
||||
if(card_info.initialized <= 0)
|
||||
if(card_info[drive].initialized <= 0)
|
||||
{
|
||||
ret = sd_init_card();
|
||||
if(card_info.initialized <= 0)
|
||||
ret = sd_init_card(drive);
|
||||
if(card_info[drive].initialized <= 0)
|
||||
goto Lend;
|
||||
}
|
||||
|
||||
if(!send_cmd(SD_SELECT_CARD, card_info.rca, MCI_NO_RESP, NULL))
|
||||
/* check window */
|
||||
start += sd_window_start[drive];
|
||||
if((start + count) > sd_window_end[drive])
|
||||
{
|
||||
ret = -201;
|
||||
goto Lend;
|
||||
}
|
||||
|
||||
if(!send_cmd(drive, SD_SELECT_CARD, card_info[drive].rca, MCI_NO_RESP, NULL))
|
||||
{
|
||||
ret = -20;
|
||||
goto Lend;
|
||||
}
|
||||
ret = sd_wait_for_tran_state();
|
||||
ret = sd_wait_for_tran_state(drive);
|
||||
if(ret < 0)
|
||||
goto Ldeselect;
|
||||
while(count != 0)
|
||||
|
|
@ -346,13 +428,14 @@ static int transfer_sectors(IF_MD2(int drive,) unsigned long start, int count, v
|
|||
int this_count = MIN(count, IMX233_MAX_SSP_XFER_SIZE / 512);
|
||||
/* Set bank_start to the correct unit (blocks or bytes) */
|
||||
int bank_start = start;
|
||||
if(!(card_info.ocr & (1<<30))) /* not SDHC */
|
||||
if(!(card_info[drive].ocr & (1<<30))) /* not SDHC */
|
||||
bank_start *= SD_BLOCK_SIZE;
|
||||
ret = imx233_ssp_sd_mmc_transfer(SD_SSP, read ? SD_READ_MULTIPLE_BLOCK : SD_WRITE_MULTIPLE_BLOCK,
|
||||
ret = imx233_ssp_sd_mmc_transfer(SD_SSP(drive),
|
||||
read ? SD_READ_MULTIPLE_BLOCK : SD_WRITE_MULTIPLE_BLOCK,
|
||||
bank_start, SSP_SHORT_RESP, buf, this_count, false, read, &resp);
|
||||
if(ret != SSP_SUCCESS)
|
||||
break;
|
||||
if(!send_cmd(SD_STOP_TRANSMISSION, 0, MCI_RESP|MCI_BUSY, &resp))
|
||||
if(!send_cmd(drive, SD_STOP_TRANSMISSION, 0, MCI_RESP|MCI_BUSY, &resp))
|
||||
{
|
||||
ret = -15;
|
||||
break;
|
||||
|
|
@ -364,51 +447,48 @@ static int transfer_sectors(IF_MD2(int drive,) unsigned long start, int count, v
|
|||
|
||||
Ldeselect:
|
||||
/* CMD7 w/rca =0 : deselects card & puts it in STBY state */
|
||||
if(!send_cmd(SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
||||
if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
||||
ret = -23;
|
||||
Lend:
|
||||
mutex_unlock(&sd_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int sd_read_sectors(IF_MD2(int drive,) unsigned long start, int count,
|
||||
void* buf)
|
||||
int sd_read_sectors(IF_MD2(int drive,) unsigned long start, int count, void* buf)
|
||||
{
|
||||
return transfer_sectors(IF_MD2(drive,) start, count, buf, true);
|
||||
}
|
||||
|
||||
int sd_write_sectors(IF_MD2(int drive,) unsigned long start, int count,
|
||||
const void* buf)
|
||||
int sd_write_sectors(IF_MD2(int drive,) unsigned long start, int count, const void* buf)
|
||||
{
|
||||
return transfer_sectors(IF_MD2(drive,) start, count, (void *)buf, false);
|
||||
}
|
||||
|
||||
tCardInfo *card_get_info_target(int card_no)
|
||||
{
|
||||
(void)card_no;
|
||||
return &card_info;
|
||||
return &card_info[card_no];
|
||||
}
|
||||
|
||||
int sd_num_drives(int first_drive)
|
||||
{
|
||||
sd_first_drive = first_drive;
|
||||
return 1;
|
||||
return SD_NUM_DRIVES;
|
||||
}
|
||||
|
||||
bool sd_present(IF_MD(int drive))
|
||||
bool sd_present(IF_MV_NONVOID(int drive))
|
||||
{
|
||||
IF_MD((void) drive);
|
||||
return imx233_ssp_sdmmc_detect(SD_SSP);
|
||||
}
|
||||
|
||||
bool sd_removable(IF_MD(int drive))
|
||||
{
|
||||
IF_MD((void) drive);
|
||||
if(SD_FLAGS(drive) & REMOVABLE)
|
||||
return imx233_ssp_sdmmc_detect(SD_SSP(drive));
|
||||
else
|
||||
return true;
|
||||
}
|
||||
|
||||
bool sd_removable(IF_MV_NONVOID(int drive))
|
||||
{
|
||||
return SD_FLAGS(drive) & REMOVABLE;
|
||||
}
|
||||
|
||||
long sd_last_disk_activity(void)
|
||||
{
|
||||
return last_disk_activity;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -28,6 +28,13 @@
|
|||
#include "pinctrl-imx233.h"
|
||||
#include "dma-imx233.h"
|
||||
|
||||
/* for debug purpose */
|
||||
#if 0
|
||||
#define ASSERT_SSP(ssp) if(ssp < 1 || ssp > 2) panicf("ssp=%d in %s", ssp, __func__);
|
||||
#else
|
||||
#define ASSERT_SSP(ssp)
|
||||
#endif
|
||||
|
||||
/* Used for DMA */
|
||||
struct ssp_dma_command_t
|
||||
{
|
||||
|
|
@ -46,6 +53,7 @@ static struct ssp_dma_command_t ssp_dma_cmd[2];
|
|||
static uint32_t ssp_bus_width[2];
|
||||
static unsigned ssp_log_block_size[2];
|
||||
static ssp_detect_cb_t ssp_detect_cb[2];
|
||||
static bool ssp_detect_invert[2];
|
||||
|
||||
void INT_SSP(int ssp)
|
||||
{
|
||||
|
|
@ -93,6 +101,7 @@ void imx233_ssp_init(void)
|
|||
|
||||
void imx233_ssp_start(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
if(ssp_in_use[ssp - 1])
|
||||
return;
|
||||
ssp_in_use[ssp - 1] = true;
|
||||
|
|
@ -117,6 +126,7 @@ void imx233_ssp_start(int ssp)
|
|||
|
||||
void imx233_ssp_stop(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
if(!ssp_in_use[ssp - 1])
|
||||
return;
|
||||
ssp_in_use[ssp - 1] = false;
|
||||
|
|
@ -135,11 +145,13 @@ void imx233_ssp_stop(int ssp)
|
|||
|
||||
void imx233_ssp_softreset(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
imx233_reset_block(&HW_SSP_CTRL0(ssp));
|
||||
}
|
||||
|
||||
void imx233_ssp_set_timings(int ssp, int divide, int rate, int timeout)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
HW_SSP_TIMING(ssp) = divide << HW_SSP_TIMING__CLOCK_DIVIDE_BP | rate |
|
||||
timeout << HW_SSP_TIMING__CLOCK_TIMEOUT_BP;
|
||||
}
|
||||
|
|
@ -209,6 +221,7 @@ void imx233_ssp_setup_ssp2_sd_mmc_pins(bool enable_pullups, unsigned bus_width,
|
|||
|
||||
void imx233_ssp_set_mode(int ssp, unsigned mode)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
switch(mode)
|
||||
{
|
||||
case HW_SSP_CTRL1__SSP_MODE__SD_MMC:
|
||||
|
|
@ -226,6 +239,7 @@ void imx233_ssp_set_mode(int ssp, unsigned mode)
|
|||
|
||||
void imx233_ssp_set_bus_width(int ssp, unsigned width)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
switch(width)
|
||||
{
|
||||
case 1: ssp_bus_width[ssp - 1] = HW_SSP_CTRL0__BUS_WIDTH__ONE_BIT; break;
|
||||
|
|
@ -236,6 +250,7 @@ void imx233_ssp_set_bus_width(int ssp, unsigned width)
|
|||
|
||||
void imx233_ssp_set_block_size(int ssp, unsigned log_block_size)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
ssp_log_block_size[ssp - 1] = log_block_size;
|
||||
}
|
||||
|
||||
|
|
@ -243,6 +258,7 @@ enum imx233_ssp_error_t imx233_ssp_sd_mmc_transfer(int ssp, uint8_t cmd,
|
|||
uint32_t cmd_arg, enum imx233_ssp_resp_t resp, void *buffer, unsigned block_count,
|
||||
bool wait4irq, bool read, uint32_t *resp_ptr)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
mutex_lock(&ssp_mutex[ssp - 1]);
|
||||
/* Enable all interrupts */
|
||||
imx233_icoll_enable_interrupt(INT_SRC_SSP_DMA(ssp), true);
|
||||
|
|
@ -312,6 +328,7 @@ enum imx233_ssp_error_t imx233_ssp_sd_mmc_transfer(int ssp, uint8_t cmd,
|
|||
|
||||
void imx233_ssp_sd_mmc_power_up_sequence(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
__REG_CLR(HW_SSP_CMD0(ssp)) = HW_SSP_CMD0__SLOW_CLKING_EN;
|
||||
__REG_SET(HW_SSP_CMD0(ssp)) = HW_SSP_CMD0__CONT_CLKING_EN;
|
||||
mdelay(1);
|
||||
|
|
@ -320,6 +337,7 @@ void imx233_ssp_sd_mmc_power_up_sequence(int ssp)
|
|||
|
||||
static int ssp_detect_oneshot_callback(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
if(ssp_detect_cb[ssp - 1])
|
||||
ssp_detect_cb[ssp - 1](ssp);
|
||||
|
||||
|
|
@ -348,11 +366,14 @@ static void detect_irq(int bank, int pin)
|
|||
timeout_register(&ssp2_detect_oneshot, ssp2_detect_oneshot_callback, (3*HZ/10), 0);
|
||||
}
|
||||
|
||||
void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn, bool first_time)
|
||||
void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn,
|
||||
bool first_time, bool invert)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
int bank = ssp == 1 ? 2 : 0;
|
||||
int pin = ssp == 1 ? 1 : 19;
|
||||
ssp_detect_cb[ssp - 1] = fn;
|
||||
ssp_detect_invert[ssp - 1] = invert;
|
||||
if(enable)
|
||||
{
|
||||
imx233_pinctrl_acquire_pin(bank, pin, ssp == 1 ? "ssp1 detect" : "ssp2 detect");
|
||||
|
|
@ -361,10 +382,23 @@ void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn, boo
|
|||
}
|
||||
if(first_time && imx233_ssp_sdmmc_detect(ssp))
|
||||
detect_irq(bank, pin);
|
||||
imx233_setup_pin_irq(bank, pin, enable, true, !imx233_ssp_sdmmc_detect(ssp), detect_irq);
|
||||
imx233_setup_pin_irq(bank, pin, enable, true, !imx233_ssp_sdmmc_detect_raw(ssp), detect_irq);
|
||||
}
|
||||
|
||||
bool imx233_ssp_sdmmc_is_detect_inverted(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
return ssp_detect_invert[ssp - 1];
|
||||
}
|
||||
|
||||
bool imx233_ssp_sdmmc_detect_raw(int ssp)
|
||||
{
|
||||
ASSERT_SSP(ssp)
|
||||
return !!(HW_SSP_STATUS(ssp) & HW_SSP_STATUS__CARD_DETECT);
|
||||
}
|
||||
|
||||
bool imx233_ssp_sdmmc_detect(int ssp)
|
||||
{
|
||||
return !!(HW_SSP_STATUS(ssp) & HW_SSP_STATUS__CARD_DETECT);
|
||||
ASSERT_SSP(ssp)
|
||||
return imx233_ssp_sdmmc_detect_raw(ssp) != ssp_detect_invert[ssp - 1];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
* \/ \/ \/ \/ \/
|
||||
* $Id$
|
||||
*
|
||||
* Copyright (C) 2011 by amaury Pouly
|
||||
* Copyright (C) 2011 by Amaury Pouly
|
||||
*
|
||||
* Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
|
||||
* and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
|
||||
|
|
@ -170,8 +170,15 @@ void imx233_ssp_setup_ssp2_sd_mmc_pins(bool enable_pullups, unsigned bus_width,
|
|||
/* after callback is fired, imx233_ssp_sdmmc_setup_detect needs to be called
|
||||
* to enable detection again. If first_time is true, the callback will
|
||||
* be called if the sd card is inserted when the function is called, otherwise
|
||||
* it will be called on the next insertion change. */
|
||||
void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn, bool first_time);
|
||||
* it will be called on the next insertion change.
|
||||
* By default, sd_detect=1 means sd inserted; invert reverses this behaviour */
|
||||
void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn,
|
||||
bool first_time, bool invert);
|
||||
/* needs prior setup with imx233_ssp_sdmmc_setup_detect */
|
||||
bool imx233_ssp_sdmmc_is_detect_inverted(int spp);
|
||||
/* raw value of the detect pin */
|
||||
bool imx233_ssp_sdmmc_detect_raw(int ssp);
|
||||
/* corrected value given the invert setting */
|
||||
bool imx233_ssp_sdmmc_detect(int ssp);
|
||||
/* SD/MMC requires that the card be provided the clock during an init sequence of
|
||||
* at least 1msec (or 74 clocks). Does NOT touch the clock so it has to be correct. */
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue