Automatically prepend v1 mass storage protocol.

This patch prepend the v1 mass storage protocol to the command
buffer and simplify the usb read/write handling.


Change-Id: I709602600e93cd1eb5848fa9f4d15659ba85eb35
Signed-off-by: Mathias K <kesmtp@freenet.de>
Reviewed-on: http://openocd.zylin.com/506
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Mathias K 2012-03-08 17:07:47 +01:00 committed by Spencer Oliver
parent 8e198e9471
commit cfdfe5119d
1 changed files with 262 additions and 310 deletions

View File

@ -37,11 +37,13 @@
#define ENDPOINT_IN 0x80
#define ENDPOINT_OUT 0x00
#define STLINK_RX_EP (1|ENDPOINT_IN)
#define STLINK_TX_EP (2|ENDPOINT_OUT)
#define STLINK_CMD_SIZE (16)
#define STLINK_TX_SIZE (4*128)
#define STLINK_RX_SIZE (4*128)
#define STLINK_NULL_EP 0
#define STLINK_RX_EP (1|ENDPOINT_IN)
#define STLINK_TX_EP (2|ENDPOINT_OUT)
#define STLINK_SG_SIZE (31)
#define STLINK_DATA_SIZE (4*128)
#define STLINK_CMD_SIZE_V2 (16)
#define STLINK_CMD_SIZE_V1 (10)
enum stlink_jtag_api_version {
STLINK_JTAG_API_V1 = 0,
@ -67,9 +69,13 @@ struct stlink_usb_handle_s {
/** */
struct libusb_transfer *trans;
/** */
uint8_t txbuf[STLINK_TX_SIZE];
uint8_t cmdbuf[STLINK_SG_SIZE];
/** */
uint8_t rxbuf[STLINK_RX_SIZE];
uint8_t cmdidx;
/** */
uint8_t direction;
/** */
uint8_t databuf[STLINK_DATA_SIZE];
/** */
enum stlink_transports transport;
/** */
@ -78,8 +84,6 @@ struct stlink_usb_handle_s {
uint16_t vid;
/** */
uint16_t pid;
/** */
uint32_t sg_tag;
/** this is the currently used jtag api */
enum stlink_jtag_api_version jtag_api;
};
@ -157,41 +161,13 @@ enum stlink_mode {
STLINK_MODE_DEBUG_SWIM
};
/** */
static int stlink_usb_xfer_v1_send_cmd(void *handle, const uint8_t *cmd, int cmdsize, int ep, int size)
{
uint8_t sg_buffer[31];
struct stlink_usb_handle_s *h;
#define REQUEST_SENSE 0x03
#define REQUEST_SENSE_LENGTH 18
assert(handle != NULL);
assert(cmdsize <= 16);
h = (struct stlink_usb_handle_s *)handle;
h->sg_tag = (h->sg_tag + 1) & 1; /* seriously? */
memset(sg_buffer, 0, sizeof(sg_buffer));
h_u32_to_le(sg_buffer, 0x43425355); /* USBC */
h_u32_to_le(&sg_buffer[4], h->sg_tag);
h_u32_to_le(&sg_buffer[8], size);
sg_buffer[12] = (ep == STLINK_RX_EP ? ENDPOINT_IN : ENDPOINT_OUT);
/* sg_buffer[13] = 0; */
sg_buffer[14] = (uint8_t)cmdsize;
memcpy(&sg_buffer[15], cmd, cmdsize);
if (jtag_libusb_bulk_write(h->fd, STLINK_TX_EP, (char *)sg_buffer, sizeof(sg_buffer),
1000) != sizeof(sg_buffer)) {
LOG_DEBUG("send failed\n");
return ERROR_FAIL;
}
return ERROR_OK;
}
static void stlink_usb_init_buffer(void *handle, uint8_t direction, uint32_t size);
/** */
static int stlink_usb_xfer_v1_get_status(void *handle, uint8_t *sg_buffer, int len)
static int stlink_usb_xfer_v1_get_status(void *handle)
{
struct stlink_usb_handle_s *h;
@ -200,134 +176,33 @@ static int stlink_usb_xfer_v1_get_status(void *handle, uint8_t *sg_buffer, int l
h = (struct stlink_usb_handle_s *)handle;
/* read status */
memset(sg_buffer, 0, len);
memset(h->cmdbuf, 0, STLINK_SG_SIZE);
if (jtag_libusb_bulk_read(h->fd, STLINK_RX_EP, (char *)sg_buffer,
len, 1000) != len)
if (jtag_libusb_bulk_read(h->fd, STLINK_RX_EP, (char *)h->cmdbuf,
13, 1000) != 13)
return ERROR_FAIL;
uint32_t t1 = le_to_h_u32(sg_buffer+0);
/* uint32_t t2 = le_to_h_u32(sg_buffer+4); */
uint32_t t1;
t1 = buf_get_u32(h->cmdbuf, 0, 32);
/* check for USBS */
if (t1 != 0x53425355)
return ERROR_FAIL;
return ERROR_OK;
}
/** */
static int stlink_usb_xfer_rw(void *handle, int ep, uint8_t *buf, int size)
{
struct stlink_usb_handle_s *h;
h = (struct stlink_usb_handle_s *)handle;
if (!size)
return ERROR_OK;
if (ep == STLINK_RX_EP) {
if (jtag_libusb_bulk_read(h->fd, STLINK_RX_EP, (char *)buf,
size, 1000) != size) {
return ERROR_FAIL;
}
} else {
if (jtag_libusb_bulk_write(h->fd, STLINK_TX_EP, (char *)buf,
size, 1000) != size) {
return ERROR_FAIL;
}
}
return ERROR_OK;
}
/**
* http://en.wikipedia.org/wiki/SCSI_Request_Sense_Command
*/
static int stlink_usb_xfer_v1_get_sense(void *handle)
{
int err;
uint8_t cdb[STLINK_CMD_SIZE];
uint8_t sense[18];
uint8_t status[13];
assert(handle != NULL);
memset(cdb, 0, sizeof(cdb));
cdb[0] = 0x03;
cdb[4] = sizeof(sense);
err = stlink_usb_xfer_v1_send_cmd(handle, cdb, sizeof(cdb), STLINK_RX_EP, sizeof(sense));
if (err != ERROR_OK)
return err;
err = stlink_usb_xfer_rw(handle, STLINK_RX_EP, sense, sizeof(sense));
if (err != ERROR_OK)
return err;
err = stlink_usb_xfer_v1_get_status(handle, status, sizeof(status));
if (err != ERROR_OK)
return err;
/* check for sense */
if (status[12] != 0)
/*
* CSW status:
* 0 success
* 1 command failure
* 2 phase error
*/
if (h->cmdbuf[12] != 0)
return ERROR_FAIL;
/* if (sense[0] != 0x70 && sense[0] != 0x71) */
return err;
return ERROR_OK;
}
/** */
static int stlink_usb_xfer_v1_check_status(void *handle)
{
int err;
uint8_t sg_buffer[13];
err = stlink_usb_xfer_v1_get_status(handle, sg_buffer, sizeof(sg_buffer));
if (err != ERROR_OK)
return err;
/* check for sense */
if (sg_buffer[12] == 1) {
LOG_DEBUG("get sense");
err = stlink_usb_xfer_v1_get_sense(handle);
}
return err;
}
/** */
static int stlink_usb_xfer_v1(void *handle, const uint8_t *cmd, int cmdsize, int ep,
uint8_t *buf, int size)
{
int err;
assert(handle != NULL);
err = stlink_usb_xfer_v1_send_cmd(handle, cmd, cmdsize, ep, size);
if (err != ERROR_OK)
return err;
err = stlink_usb_xfer_rw(handle, ep, buf, size);
if (err != ERROR_OK)
return err;
return stlink_usb_xfer_v1_check_status(handle);
}
/** */
static int stlink_usb_xfer_v2(void *handle, const uint8_t *cmd, int cmdsize, int ep,
uint8_t *buf, int size)
static int stlink_usb_xfer_rw(void *handle, int cmdsize, const uint8_t *buf, int size)
{
struct stlink_usb_handle_s *h;
@ -335,57 +210,125 @@ static int stlink_usb_xfer_v2(void *handle, const uint8_t *cmd, int cmdsize, int
h = (struct stlink_usb_handle_s *)handle;
if (jtag_libusb_bulk_write(h->fd, STLINK_TX_EP, (char *)cmd, cmdsize,
if (jtag_libusb_bulk_write(h->fd, STLINK_TX_EP, (char *)h->cmdbuf, cmdsize,
1000) != cmdsize) {
return ERROR_FAIL;
}
return stlink_usb_xfer_rw(handle, ep, buf, size);
if (h->direction == STLINK_TX_EP && size) {
if (jtag_libusb_bulk_write(h->fd, STLINK_TX_EP, (char *)buf,
size, 1000) != size) {
LOG_DEBUG("bulk write failed");
return ERROR_FAIL;
}
} else if (h->direction == STLINK_RX_EP && size) {
if (jtag_libusb_bulk_read(h->fd, STLINK_RX_EP, (char *)buf,
size, 1000) != size) {
LOG_DEBUG("bulk read failed");
return ERROR_FAIL;
}
}
return ERROR_OK;
}
/** */
static int stlink_usb_xfer(void *handle, const uint8_t *cmd, int cmdsize, int ep,
uint8_t *buf, int size)
static int stlink_usb_xfer_v1_get_sense(void *handle)
{
int res;
struct stlink_usb_handle_s *h;
assert(handle != NULL);
assert(cmdsize == STLINK_CMD_SIZE);
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle, STLINK_RX_EP, 16);
h->cmdbuf[h->cmdidx++] = REQUEST_SENSE;
h->cmdbuf[h->cmdidx++] = 0;
h->cmdbuf[h->cmdidx++] = 0;
h->cmdbuf[h->cmdidx++] = 0;
h->cmdbuf[h->cmdidx++] = REQUEST_SENSE_LENGTH;
res = stlink_usb_xfer_rw(handle, REQUEST_SENSE_LENGTH, h->databuf, 16);
if (res != ERROR_OK)
return res;
if (stlink_usb_xfer_v1_get_status(handle) != ERROR_OK)
return ERROR_FAIL;
return ERROR_OK;
}
/** */
static int stlink_usb_xfer(void *handle, const uint8_t *buf, int size)
{
int err, cmdsize = STLINK_CMD_SIZE_V2;
struct stlink_usb_handle_s *h;
assert(handle != NULL);
h = (struct stlink_usb_handle_s *)handle;
if (h->version.stlink == 1)
cmdsize = STLINK_SG_SIZE;
err = stlink_usb_xfer_rw(handle, cmdsize, buf, size);
if (err != ERROR_OK)
return err;
if (h->version.stlink == 1) {
return stlink_usb_xfer_v1(handle, cmd, cmdsize, ep, buf, size);
} else {
return stlink_usb_xfer_v2(handle, cmd, cmdsize, ep, buf, size);
if (stlink_usb_xfer_v1_get_status(handle) != ERROR_OK) {
/* check csw status */
if (h->cmdbuf[12] == 1) {
LOG_DEBUG("get sense");
if (stlink_usb_xfer_v1_get_sense(handle) != ERROR_OK)
return ERROR_FAIL;
}
return ERROR_FAIL;
}
}
return ERROR_OK;
}
/** */
static int stlink_usb_recv(void *handle, const uint8_t *cmd, int cmdsize, uint8_t *rxbuf,
int rxsize)
{
return stlink_usb_xfer(handle, cmd, cmdsize, STLINK_RX_EP, rxbuf, rxsize);
}
/** */
static int stlink_usb_send(void *handle, const uint8_t *cmd, int cmdsize, uint8_t *txbuf,
int txsize)
{
return stlink_usb_xfer(handle, cmd, cmdsize, STLINK_TX_EP, txbuf, txsize);
}
/** */
static void stlink_usb_init_buffer(void *handle)
static void stlink_usb_xfer_v1_create_cmd(void *handle, uint8_t direction, uint32_t size)
{
struct stlink_usb_handle_s *h;
assert(handle != NULL);
h = (struct stlink_usb_handle_s *)handle;
/* fill the send buffer */
strcpy((char *)h->cmdbuf, "USBC");
h->cmdidx += 4;
/* csw tag not used */
h->cmdidx += 4;
buf_set_u32(h->cmdbuf+h->cmdidx, 0, 32, size);
h->cmdidx += 4;
h->cmdbuf[h->cmdidx++] = (direction == STLINK_RX_EP ? ENDPOINT_IN : ENDPOINT_OUT);
h->cmdbuf[h->cmdidx++] = 0; /* lun */
h->cmdbuf[h->cmdidx++] = STLINK_CMD_SIZE_V1;
}
/** */
static void stlink_usb_init_buffer(void *handle, uint8_t direction, uint32_t size)
{
struct stlink_usb_handle_s *h;
h = (struct stlink_usb_handle_s *)handle;
memset(h->txbuf, 0, STLINK_TX_SIZE);
memset(h->rxbuf, 0, STLINK_RX_SIZE);
h->direction = direction;
h->cmdidx = 0;
memset(h->cmdbuf, 0, STLINK_SG_SIZE);
memset(h->databuf, 0, STLINK_DATA_SIZE);
if (h->version.stlink == 1)
stlink_usb_xfer_v1_create_cmd(handle, direction, size);
}
static const char * const stlink_usb_error_msg[] = {
@ -405,9 +348,9 @@ static int stlink_usb_error_check(void *handle)
/* TODO: no error checking yet on api V1 */
if (h->jtag_api == STLINK_JTAG_API_V1)
h->rxbuf[0] = STLINK_DEBUG_ERR_OK;
h->databuf[0] = STLINK_DEBUG_ERR_OK;
switch (h->rxbuf[0]) {
switch (h->databuf[0]) {
case STLINK_DEBUG_ERR_OK:
res = ERROR_OK;
break;
@ -419,7 +362,7 @@ static int stlink_usb_error_check(void *handle)
}
if (res != ERROR_OK)
LOG_DEBUG("status error: %d ('%s')", h->rxbuf[0], err_msg);
LOG_DEBUG("status error: %d ('%s')", h->databuf[0], err_msg);
return res;
}
@ -435,22 +378,22 @@ static int stlink_usb_version(void *handle)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 6);
h->txbuf[0] = STLINK_GET_VERSION;
h->cmdbuf[h->cmdidx++] = STLINK_GET_VERSION;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 6);
res = stlink_usb_xfer(handle, h->databuf, 6);
if (res != ERROR_OK)
return res;
v = (h->rxbuf[0] << 8) | h->rxbuf[1];
v = (h->databuf[0] << 8) | h->databuf[1];
h->version.stlink = (v >> 12) & 0x0f;
h->version.jtag = (v >> 6) & 0x3f;
h->version.swim = v & 0x3f;
h->vid = buf_get_u32(h->rxbuf, 16, 16);
h->pid = buf_get_u32(h->rxbuf, 32, 16);
h->vid = buf_get_u32(h->databuf, 16, 16);
h->pid = buf_get_u32(h->databuf, 32, 16);
/* set the supported jtag api version
* V1 doesn't support API V2 at all
@ -482,16 +425,16 @@ static int stlink_usb_current_mode(void *handle, uint8_t *mode)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_GET_CURRENT_MODE;
h->cmdbuf[h->cmdidx++] = STLINK_GET_CURRENT_MODE;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
*mode = h->rxbuf[0];
*mode = h->databuf[0];
return ERROR_OK;
}
@ -507,35 +450,6 @@ static int stlink_usb_mode_enter(void *handle, enum stlink_mode type)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
switch (type) {
case STLINK_MODE_DEBUG_JTAG:
h->txbuf[0] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_ENTER;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_ENTER;
h->txbuf[2] = STLINK_DEBUG_ENTER_JTAG;
break;
case STLINK_MODE_DEBUG_SWD:
h->txbuf[0] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_ENTER;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_ENTER;
h->txbuf[2] = STLINK_DEBUG_ENTER_SWD;
break;
case STLINK_MODE_DEBUG_SWIM:
h->txbuf[0] = STLINK_SWIM_COMMAND;
h->txbuf[1] = STLINK_SWIM_ENTER;
break;
case STLINK_MODE_DFU:
case STLINK_MODE_MASS:
default:
return ERROR_FAIL;
}
/* on api V2 we are able the read the latest command
* status
* TODO: we need the test on api V1 too
@ -543,7 +457,36 @@ static int stlink_usb_mode_enter(void *handle, enum stlink_mode type)
if (h->jtag_api == STLINK_JTAG_API_V2)
rx_size = 2;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, rx_size);
stlink_usb_init_buffer(handle, STLINK_RX_EP, rx_size);
switch (type) {
case STLINK_MODE_DEBUG_JTAG:
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_ENTER;
else
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_ENTER;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_ENTER_JTAG;
break;
case STLINK_MODE_DEBUG_SWD:
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_ENTER;
else
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_ENTER;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_ENTER_SWD;
break;
case STLINK_MODE_DEBUG_SWIM:
h->cmdbuf[h->cmdidx++] = STLINK_SWIM_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_SWIM_ENTER;
break;
case STLINK_MODE_DFU:
case STLINK_MODE_MASS:
default:
return ERROR_FAIL;
}
res = stlink_usb_xfer(handle, h->databuf, rx_size);
if (res != ERROR_OK)
return res;
@ -563,28 +506,28 @@ static int stlink_usb_mode_leave(void *handle, enum stlink_mode type)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_NULL_EP, 0);
switch (type) {
case STLINK_MODE_DEBUG_JTAG:
case STLINK_MODE_DEBUG_SWD:
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_EXIT;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_EXIT;
break;
case STLINK_MODE_DEBUG_SWIM:
h->txbuf[0] = STLINK_SWIM_COMMAND;
h->txbuf[1] = STLINK_SWIM_EXIT;
h->cmdbuf[h->cmdidx++] = STLINK_SWIM_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_SWIM_EXIT;
break;
case STLINK_MODE_DFU:
h->txbuf[0] = STLINK_DFU_COMMAND;
h->txbuf[1] = STLINK_DFU_EXIT;
h->cmdbuf[h->cmdidx++] = STLINK_DFU_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DFU_EXIT;
break;
case STLINK_MODE_MASS:
default:
return ERROR_FAIL;
}
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, 0, 0);
res = stlink_usb_xfer(handle, 0, 0);
if (res != ERROR_OK)
return res;
@ -689,17 +632,17 @@ static int stlink_usb_idcode(void *handle, uint32_t *idcode)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 4);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_READCOREID;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_READCOREID;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 4);
res = stlink_usb_xfer(handle, h->databuf, 4);
if (res != ERROR_OK)
return res;
*idcode = le_to_h_u32(h->rxbuf);
*idcode = le_to_h_u32(h->databuf);
LOG_DEBUG("IDCODE: %08X", *idcode);
@ -719,19 +662,19 @@ static enum target_state stlink_usb_state(void *handle)
if (h->jtag_api == STLINK_JTAG_API_V2)
return TARGET_UNKNOWN;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_GETSTATUS;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_GETSTATUS;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return TARGET_UNKNOWN;
if (h->rxbuf[0] == STLINK_CORE_RUNNING)
if (h->databuf[0] == STLINK_CORE_RUNNING)
return TARGET_RUNNING;
if (h->rxbuf[0] == STLINK_CORE_HALTED)
if (h->databuf[0] == STLINK_CORE_HALTED)
return TARGET_HALTED;
return TARGET_UNKNOWN;
@ -747,21 +690,21 @@ static int stlink_usb_reset(void *handle)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_RESETSYS;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_RESETSYS;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_RESETSYS;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_RESETSYS;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
LOG_DEBUG("RESET: %08X", h->rxbuf[0]);
LOG_DEBUG("RESET: %08X", h->databuf[0]);
return ERROR_OK;
}
@ -779,12 +722,12 @@ static int stlink_usb_run(void *handle)
if (h->jtag_api == STLINK_JTAG_API_V2)
return ERROR_FAIL;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_RUNCORE;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_RUNCORE;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
@ -805,12 +748,12 @@ static int stlink_usb_halt(void *handle)
if (h->jtag_api == STLINK_JTAG_API_V2)
return ERROR_FAIL;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_FORCEDEBUG;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_FORCEDEBUG;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
@ -831,12 +774,12 @@ static int stlink_usb_step(void *handle)
if (h->jtag_api == STLINK_JTAG_API_V2)
return ERROR_FAIL;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_STEPCORE;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_STEPCORE;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
@ -854,15 +797,15 @@ static int stlink_usb_read_regs(void *handle)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 84);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_READALLREGS;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_READALLREGS;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_READALLREGS;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_READALLREGS;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 84);
res = stlink_usb_xfer(handle, h->databuf, 84);
if (res != ERROR_OK)
return res;
@ -880,21 +823,21 @@ static int stlink_usb_read_reg(void *handle, int num, uint32_t *val)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 4);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_READREG;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_READREG;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_READREG;
h->txbuf[2] = num;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_READREG;
h->cmdbuf[h->cmdidx++] = num;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 4);
res = stlink_usb_xfer(handle, h->databuf, 4);
if (res != ERROR_OK)
return res;
*val = le_to_h_u32(h->rxbuf);
*val = le_to_h_u32(h->databuf);
return ERROR_OK;
}
@ -909,17 +852,18 @@ static int stlink_usb_write_reg(void *handle, int num, uint32_t val)
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, 2);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
if (h->jtag_api == STLINK_JTAG_API_V1)
h->txbuf[1] = STLINK_DEBUG_APIV1_WRITEREG;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV1_WRITEREG;
else
h->txbuf[1] = STLINK_DEBUG_APIV2_WRITEREG;
h->txbuf[2] = num;
h_u32_to_le(h->txbuf + 3, val);
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_APIV2_WRITEREG;
h->cmdbuf[h->cmdidx++] = num;
h_u32_to_le(h->cmdbuf+h->cmdidx, val);
h->cmdidx += 4;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, 2);
res = stlink_usb_xfer(handle, h->databuf, 2);
if (res != ERROR_OK)
return res;
@ -939,23 +883,25 @@ static int stlink_usb_read_mem8(void *handle, uint32_t addr, uint16_t len,
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_RX_EP, read_len);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_READMEM_8BIT;
h_u32_to_le(h->txbuf + 2, addr);
h_u16_to_le(h->txbuf + 2 + 4, len);
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_READMEM_8BIT;
h_u32_to_le(h->cmdbuf+h->cmdidx, addr);
h->cmdidx += 4;
h_u16_to_le(h->cmdbuf+h->cmdidx, len);
h->cmdidx += 2;
/* we need to fix read length for single bytes */
if (read_len == 1)
read_len++;
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, read_len);
res = stlink_usb_xfer(handle, h->databuf, read_len);
if (res != ERROR_OK)
return res;
memcpy(buffer, h->rxbuf, len);
memcpy(buffer, h->databuf, len);
return ERROR_OK;
}
@ -971,14 +917,16 @@ static int stlink_usb_write_mem8(void *handle, uint32_t addr, uint16_t len,
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
stlink_usb_init_buffer(handle, STLINK_TX_EP, len);
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_WRITEMEM_8BIT;
h_u32_to_le(h->txbuf + 2, addr);
h_u16_to_le(h->txbuf + 2 + 4, len);
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_WRITEMEM_8BIT;
h_u32_to_le(h->cmdbuf+h->cmdidx, addr);
h->cmdidx += 4;
h_u16_to_le(h->cmdbuf+h->cmdidx, len);
h->cmdidx += 2;
res = stlink_usb_send(handle, h->txbuf, STLINK_CMD_SIZE, (uint8_t *) buffer, len);
res = stlink_usb_xfer(handle, (uint8_t *) buffer, len);
if (res != ERROR_OK)
return res;
@ -997,21 +945,23 @@ static int stlink_usb_read_mem32(void *handle, uint32_t addr, uint16_t len,
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
len *= 4;
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_READMEM_32BIT;
h_u32_to_le(h->txbuf + 2, addr);
h_u16_to_le(h->txbuf + 2 + 4, len);
stlink_usb_init_buffer(handle, STLINK_RX_EP, len);
res = stlink_usb_recv(handle, h->txbuf, STLINK_CMD_SIZE, h->rxbuf, len);
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_READMEM_32BIT;
h_u32_to_le(h->cmdbuf+h->cmdidx, addr);
h->cmdidx += 4;
h_u16_to_le(h->cmdbuf+h->cmdidx, len);
h->cmdidx += 2;
res = stlink_usb_xfer(handle, h->databuf, len);
if (res != ERROR_OK)
return res;
memcpy(buffer, h->rxbuf, len);
memcpy(buffer, h->databuf, len);
return ERROR_OK;
}
@ -1027,16 +977,18 @@ static int stlink_usb_write_mem32(void *handle, uint32_t addr, uint16_t len,
h = (struct stlink_usb_handle_s *)handle;
stlink_usb_init_buffer(handle);
len *= 4;
h->txbuf[0] = STLINK_DEBUG_COMMAND;
h->txbuf[1] = STLINK_DEBUG_WRITEMEM_32BIT;
h_u32_to_le(h->txbuf + 2, addr);
h_u16_to_le(h->txbuf + 2 + 4, len);
stlink_usb_init_buffer(handle, STLINK_TX_EP, len);
res = stlink_usb_send(handle, h->txbuf, STLINK_CMD_SIZE, (uint8_t *) buffer, len);
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_COMMAND;
h->cmdbuf[h->cmdidx++] = STLINK_DEBUG_WRITEMEM_32BIT;
h_u32_to_le(h->cmdbuf+h->cmdidx, addr);
h->cmdidx += 4;
h_u16_to_le(h->cmdbuf+h->cmdidx, len);
h->cmdidx += 2;
res = stlink_usb_xfer(handle, (uint8_t *) buffer, len);
if (res != ERROR_OK)
return res;