#endif
#include <gpiod.h>
+#include <jtag/adapter.h>
#include <jtag/interface.h>
#include <transport/transport.h>
#include "bitbang.h"
-/* gpio numbers for each gpio. Negative values are invalid */
-static int tck_gpio = -1;
-static int tms_gpio = -1;
-static int tdi_gpio = -1;
-static int tdo_gpio = -1;
-static int trst_gpio = -1;
-static int srst_gpio = -1;
-static int swclk_gpio = -1;
-static int swdio_gpio = -1;
-static int swdio_dir_gpio = -1;
-static int led_gpio = -1;
-static int gpiochip = -1;
-static int tck_gpiochip = -1;
-static int tms_gpiochip = -1;
-static int tdi_gpiochip = -1;
-static int tdo_gpiochip = -1;
-static int trst_gpiochip = -1;
-static int srst_gpiochip = -1;
-static int swclk_gpiochip = -1;
-static int swdio_gpiochip = -1;
-static int swdio_dir_gpiochip = -1;
-static int led_gpiochip = -1;
-
-static struct gpiod_chip *gpiod_chip_tck;
-static struct gpiod_chip *gpiod_chip_tms;
-static struct gpiod_chip *gpiod_chip_tdi;
-static struct gpiod_chip *gpiod_chip_tdo;
-static struct gpiod_chip *gpiod_chip_trst;
-static struct gpiod_chip *gpiod_chip_srst;
-static struct gpiod_chip *gpiod_chip_swclk;
-static struct gpiod_chip *gpiod_chip_swdio;
-static struct gpiod_chip *gpiod_chip_swdio_dir;
-static struct gpiod_chip *gpiod_chip_led;
-
-static struct gpiod_line *gpiod_tck;
-static struct gpiod_line *gpiod_tms;
-static struct gpiod_line *gpiod_tdi;
-static struct gpiod_line *gpiod_tdo;
-static struct gpiod_line *gpiod_trst;
-static struct gpiod_line *gpiod_swclk;
-static struct gpiod_line *gpiod_swdio;
-static struct gpiod_line *gpiod_swdio_dir;
-static struct gpiod_line *gpiod_srst;
-static struct gpiod_line *gpiod_led;
+static struct gpiod_chip *gpiod_chip[ADAPTER_GPIO_IDX_NUM] = {};
+static struct gpiod_line *gpiod_line[ADAPTER_GPIO_IDX_NUM] = {};
static int last_swclk;
static int last_swdio;
static bool last_stored;
static bool swdio_input;
-static bool swdio_dir_is_active_high = true;
+
+static const struct adapter_gpio_config *adapter_gpio_config;
+
+/*
+ * Helper function to determine if gpio config is valid
+ *
+ * Assume here that there will be less than 10000 gpios per gpiochip, and less
+ * than 1000 gpiochips.
+ */
+static bool is_gpio_config_valid(enum adapter_gpio_config_index idx)
+{
+ return adapter_gpio_config[idx].chip_num >= 0
+ && adapter_gpio_config[idx].chip_num < 1000
+ && adapter_gpio_config[idx].gpio_num >= 0
+ && adapter_gpio_config[idx].gpio_num < 10000;
+}
/* Bitbang interface read of TDO */
static bb_value_t linuxgpiod_read(void)
{
int retval;
- retval = gpiod_line_get_value(gpiod_tdo);
+ retval = gpiod_line_get_value(gpiod_line[ADAPTER_GPIO_IDX_TDO]);
if (retval < 0) {
LOG_WARNING("reading tdo failed");
return 0;
}
if (tdi != last_tdi) {
- retval = gpiod_line_set_value(gpiod_tdi, tdi);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_TDI], tdi);
if (retval < 0)
LOG_WARNING("writing tdi failed");
}
if (tms != last_tms) {
- retval = gpiod_line_set_value(gpiod_tms, tms);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_TMS], tms);
if (retval < 0)
LOG_WARNING("writing tms failed");
}
/* write clk last */
if (tck != last_tck) {
- retval = gpiod_line_set_value(gpiod_tck, tck);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_TCK], tck);
if (retval < 0)
LOG_WARNING("writing tck failed");
}
{
int retval;
- retval = gpiod_line_get_value(gpiod_swdio);
+ retval = gpiod_line_get_value(gpiod_line[ADAPTER_GPIO_IDX_SWDIO]);
if (retval < 0) {
LOG_WARNING("Fail read swdio");
return 0;
* https://stackoverflow.com/questions/58735140/
* this would change in future libgpiod
*/
- gpiod_line_release(gpiod_swdio);
+ gpiod_line_release(gpiod_line[ADAPTER_GPIO_IDX_SWDIO]);
if (is_output) {
- if (gpiod_swdio_dir) {
- retval = gpiod_line_set_value(gpiod_swdio_dir, swdio_dir_is_active_high ? 1 : 0);
+ if (gpiod_line[ADAPTER_GPIO_IDX_SWDIO_DIR]) {
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_SWDIO_DIR], 1);
if (retval < 0)
LOG_WARNING("Fail set swdio_dir");
}
- retval = gpiod_line_request_output(gpiod_swdio, "OpenOCD", 1);
+ retval = gpiod_line_request_output(gpiod_line[ADAPTER_GPIO_IDX_SWDIO], "OpenOCD", 1);
if (retval < 0)
LOG_WARNING("Fail request_output line swdio");
} else {
- retval = gpiod_line_request_input(gpiod_swdio, "OpenOCD");
+ retval = gpiod_line_request_input(gpiod_line[ADAPTER_GPIO_IDX_SWDIO], "OpenOCD");
if (retval < 0)
LOG_WARNING("Fail request_input line swdio");
- if (gpiod_swdio_dir) {
- retval = gpiod_line_set_value(gpiod_swdio_dir, swdio_dir_is_active_high ? 0 : 1);
+ if (gpiod_line[ADAPTER_GPIO_IDX_SWDIO_DIR]) {
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_SWDIO_DIR], 0);
if (retval < 0)
LOG_WARNING("Fail set swdio_dir");
}
if (!swdio_input) {
if (!last_stored || (swdio != last_swdio)) {
- retval = gpiod_line_set_value(gpiod_swdio, swdio);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_SWDIO], swdio);
if (retval < 0)
LOG_WARNING("Fail set swdio");
}
/* write swclk last */
if (!last_stored || (swclk != last_swclk)) {
- retval = gpiod_line_set_value(gpiod_swclk, swclk);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_SWCLK], swclk);
if (retval < 0)
LOG_WARNING("Fail set swclk");
}
{
int retval;
- if (!gpiod_led)
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_LED))
return ERROR_OK;
- retval = gpiod_line_set_value(gpiod_led, on);
+ retval = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_LED], on);
if (retval < 0)
LOG_WARNING("Fail set led");
return retval;
LOG_DEBUG("linuxgpiod_reset");
- /* assume active low */
- if (gpiod_srst) {
- retval1 = gpiod_line_set_value(gpiod_srst, srst ? 0 : 1);
+ /*
+ * active low behaviour handled by "adaptor gpio" command and
+ * GPIOD_LINE_REQUEST_FLAG_ACTIVE_LOW flag when requesting the line.
+ */
+ if (gpiod_line[ADAPTER_GPIO_IDX_SRST]) {
+ retval1 = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_SRST], srst);
if (retval1 < 0)
LOG_WARNING("set srst value failed");
}
- /* assume active low */
- if (gpiod_trst) {
- retval2 = gpiod_line_set_value(gpiod_trst, trst ? 0 : 1);
+ if (gpiod_line[ADAPTER_GPIO_IDX_TRST]) {
+ retval2 = gpiod_line_set_value(gpiod_line[ADAPTER_GPIO_IDX_TRST], trst);
if (retval2 < 0)
LOG_WARNING("set trst value failed");
}
return ((retval1 < 0) || (retval2 < 0)) ? ERROR_FAIL : ERROR_OK;
}
-/*
- * Helper function to determine if gpio number is valid
- *
- * Assume here that there will be less than 10000 gpios per gpiochip
- */
-static bool is_gpio_valid(int gpio)
-{
- return gpio >= 0 && gpio < 10000;
-}
-
static bool linuxgpiod_jtag_mode_possible(void)
{
- if (!is_gpio_valid(tck_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TCK))
return false;
- if (!is_gpio_valid(tms_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TMS))
return false;
- if (!is_gpio_valid(tdi_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TDI))
return false;
- if (!is_gpio_valid(tdo_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TDO))
return false;
return true;
}
static bool linuxgpiod_swd_mode_possible(void)
{
- if (!is_gpio_valid(swclk_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_SWCLK))
return false;
- if (!is_gpio_valid(swdio_gpio))
+ if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_SWDIO))
return false;
return true;
}
-static inline void helper_release(struct gpiod_line *line, struct gpiod_chip *chip)
+static inline void helper_release(enum adapter_gpio_config_index idx)
{
- if (line)
- gpiod_line_release(line);
- if (chip)
- gpiod_chip_close(chip);
+ if (gpiod_line[idx]) {
+ gpiod_line_release(gpiod_line[idx]);
+ gpiod_line[idx] = NULL;
+ }
+ if (gpiod_chip[idx]) {
+ gpiod_chip_close(gpiod_chip[idx]);
+ gpiod_chip[idx] = NULL;
+ }
}
static int linuxgpiod_quit(void)
{
- helper_release(gpiod_led, gpiod_chip_led);
- helper_release(gpiod_srst, gpiod_chip_srst);
- helper_release(gpiod_swdio, gpiod_chip_swdio);
- helper_release(gpiod_swdio_dir, gpiod_chip_swdio_dir);
- helper_release(gpiod_swclk, gpiod_chip_swclk);
- helper_release(gpiod_trst, gpiod_chip_trst);
- helper_release(gpiod_tms, gpiod_chip_tms);
- helper_release(gpiod_tck, gpiod_chip_tck);
- helper_release(gpiod_tdi, gpiod_chip_tdi);
- helper_release(gpiod_tdo, gpiod_chip_tdo);
+ LOG_DEBUG("linuxgpiod_quit");
+ for (int i = 0; i < ADAPTER_GPIO_IDX_NUM; ++i)
+ helper_release(i);
return ERROR_OK;
}
-static struct gpiod_line *helper_get_line(const char *label,
- struct gpiod_chip *gpiod_chip, unsigned int offset,
- int val, int dir, int flags)
+int helper_get_line(enum adapter_gpio_config_index idx)
{
- struct gpiod_line *line;
- int retval;
+ if (!is_gpio_config_valid(idx))
+ return ERROR_OK;
+
+ int dir = GPIOD_LINE_REQUEST_DIRECTION_INPUT, flags = 0, val = 0, retval;
+
+ gpiod_chip[idx] = gpiod_chip_open_by_number(adapter_gpio_config[idx].chip_num);
+ if (!gpiod_chip[idx]) {
+ LOG_ERROR("Cannot open LinuxGPIOD chip %d for %s", adapter_gpio_config[idx].chip_num,
+ adapter_gpio_get_name(idx));
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ gpiod_line[idx] = gpiod_chip_get_line(gpiod_chip[idx], adapter_gpio_config[idx].gpio_num);
+ if (!gpiod_line[idx]) {
+ LOG_ERROR("Error get line %s", adapter_gpio_get_name(idx));
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ switch (adapter_gpio_config[idx].init_state) {
+ case ADAPTER_GPIO_INIT_STATE_INPUT:
+ dir = GPIOD_LINE_REQUEST_DIRECTION_INPUT;
+ break;
+ case ADAPTER_GPIO_INIT_STATE_INACTIVE:
+ dir = GPIOD_LINE_REQUEST_DIRECTION_OUTPUT;
+ val = 0;
+ break;
+ case ADAPTER_GPIO_INIT_STATE_ACTIVE:
+ dir = GPIOD_LINE_REQUEST_DIRECTION_OUTPUT;
+ val = 1;
+ break;
+ }
+
+ switch (adapter_gpio_config[idx].drive) {
+ case ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL:
+ break;
+ case ADAPTER_GPIO_DRIVE_MODE_OPEN_DRAIN:
+ flags |= GPIOD_LINE_REQUEST_FLAG_OPEN_DRAIN;
+ break;
+ case ADAPTER_GPIO_DRIVE_MODE_OPEN_SOURCE:
+ flags |= GPIOD_LINE_REQUEST_FLAG_OPEN_SOURCE;
+ break;
+ }
- line = gpiod_chip_get_line(gpiod_chip, offset);
- if (!line) {
- LOG_ERROR("Error get line %s", label);
- return NULL;
+ switch (adapter_gpio_config[idx].pull) {
+ case ADAPTER_GPIO_PULL_NONE:
+#ifdef GPIOD_LINE_REQUEST_FLAG_BIAS_DISABLE
+ flags |= GPIOD_LINE_REQUEST_FLAG_BIAS_DISABLE;
+#endif
+ break;
+ case ADAPTER_GPIO_PULL_UP:
+#ifdef GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_UP
+ flags |= GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_UP;
+#else
+ LOG_WARNING("linuxgpiod: ignoring request for pull-up on %s: not supported by gpiod v%s",
+ adapter_gpio_get_name(idx), gpiod_version_string());
+#endif
+ break;
+ case ADAPTER_GPIO_PULL_DOWN:
+#ifdef GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_DOWN
+ flags |= GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_DOWN;
+#else
+ LOG_WARNING("linuxgpiod: ignoring request for pull-down on %s: not supported by gpiod v%s",
+ adapter_gpio_get_name(idx), gpiod_version_string());
+#endif
+ break;
}
+ if (adapter_gpio_config[idx].active_low)
+ flags |= GPIOD_LINE_REQUEST_FLAG_ACTIVE_LOW;
+
struct gpiod_line_request_config config = {
.consumer = "OpenOCD",
.request_type = dir,
.flags = flags,
};
- retval = gpiod_line_request(line, &config, val);
+ retval = gpiod_line_request(gpiod_line[idx], &config, val);
if (retval < 0) {
- LOG_ERROR("Error requesting gpio line %s", label);
- return NULL;
+ LOG_ERROR("Error requesting gpio line %s", adapter_gpio_get_name(idx));
+ return ERROR_JTAG_INIT_FAILED;
}
- return line;
-}
-
-static struct gpiod_line *helper_get_input_line(const char *label,
- struct gpiod_chip *gpiod_chip, unsigned int offset)
-{
- return helper_get_line(label, gpiod_chip, offset, 0,
- GPIOD_LINE_REQUEST_DIRECTION_INPUT, 0);
-}
-
-static struct gpiod_line *helper_get_output_line(const char *label,
- struct gpiod_chip *gpiod_chip, unsigned int offset, int val)
-{
- return helper_get_line(label, gpiod_chip, offset, val,
- GPIOD_LINE_REQUEST_DIRECTION_OUTPUT, 0);
-}
-
-static struct gpiod_line *helper_get_open_drain_output_line(const char *label,
- struct gpiod_chip *gpiod_chip, unsigned int offset, int val)
-{
- return helper_get_line(label, gpiod_chip, offset, val,
- GPIOD_LINE_REQUEST_DIRECTION_OUTPUT, GPIOD_LINE_REQUEST_FLAG_OPEN_DRAIN);
+ return ERROR_OK;
}
static int linuxgpiod_init(void)
LOG_INFO("Linux GPIOD JTAG/SWD bitbang driver");
bitbang_interface = &linuxgpiod_bitbang;
+ adapter_gpio_config = adapter_gpio_get_config();
/*
- * Configure TDO as an input, and TDI, TCK, TMS, TRST, SRST
- * as outputs. Drive TDI and TCK low, and TMS/TRST/SRST high.
- * For SWD, SWCLK and SWDIO are configures as output high.
+ * Configure JTAG/SWD signals. Default directions and initial states are handled
+ * by adapter.c and "adapter gpio" command.
*/
if (transport_is_jtag()) {
goto out_error;
}
- gpiod_chip_tdo = gpiod_chip_open_by_number(tdo_gpiochip);
- if (!gpiod_chip_tdo) {
- LOG_ERROR("Cannot open LinuxGPIOD tdo_gpiochip %d", tdo_gpiochip);
- goto out_error;
- }
- gpiod_chip_tdi = gpiod_chip_open_by_number(tdi_gpiochip);
- if (!gpiod_chip_tdi) {
- LOG_ERROR("Cannot open LinuxGPIOD tdi_gpiochip %d", tdi_gpiochip);
- goto out_error;
- }
- gpiod_chip_tck = gpiod_chip_open_by_number(tck_gpiochip);
- if (!gpiod_chip_tck) {
- LOG_ERROR("Cannot open LinuxGPIOD tck_gpiochip %d", tck_gpiochip);
- goto out_error;
- }
- gpiod_chip_tms = gpiod_chip_open_by_number(tms_gpiochip);
- if (!gpiod_chip_tms) {
- LOG_ERROR("Cannot open LinuxGPIOD tms_gpiochip %d", tms_gpiochip);
- goto out_error;
- }
-
- gpiod_tdo = helper_get_input_line("tdo", gpiod_chip_tdo, tdo_gpio);
- if (!gpiod_tdo)
- goto out_error;
-
- gpiod_tdi = helper_get_output_line("tdi", gpiod_chip_tdi, tdi_gpio, 0);
- if (!gpiod_tdi)
- goto out_error;
-
- gpiod_tck = helper_get_output_line("tck", gpiod_chip_tck, tck_gpio, 0);
- if (!gpiod_tck)
- goto out_error;
-
- gpiod_tms = helper_get_output_line("tms", gpiod_chip_tms, tms_gpio, 1);
- if (!gpiod_tms)
- goto out_error;
-
- if (is_gpio_valid(trst_gpio)) {
- gpiod_chip_trst = gpiod_chip_open_by_number(trst_gpiochip);
- if (!gpiod_chip_trst) {
- LOG_ERROR("Cannot open LinuxGPIOD trst_gpiochip %d", trst_gpiochip);
+ if (helper_get_line(ADAPTER_GPIO_IDX_TDO) != ERROR_OK ||
+ helper_get_line(ADAPTER_GPIO_IDX_TDI) != ERROR_OK ||
+ helper_get_line(ADAPTER_GPIO_IDX_TCK) != ERROR_OK ||
+ helper_get_line(ADAPTER_GPIO_IDX_TMS) != ERROR_OK ||
+ helper_get_line(ADAPTER_GPIO_IDX_TRST) != ERROR_OK)
goto out_error;
- }
-
- if (jtag_get_reset_config() & RESET_TRST_OPEN_DRAIN)
- gpiod_trst = helper_get_open_drain_output_line("trst", gpiod_chip_trst, trst_gpio, 1);
- else
- gpiod_trst = helper_get_output_line("trst", gpiod_chip_trst, trst_gpio, 1);
-
- if (!gpiod_trst)
- goto out_error;
- }
}
if (transport_is_swd()) {
+ int retval1, retval2;
if (!linuxgpiod_swd_mode_possible()) {
LOG_ERROR("Require swclk and swdio gpio for SWD mode");
goto out_error;
}
- gpiod_chip_swclk = gpiod_chip_open_by_number(swclk_gpiochip);
- if (!gpiod_chip_swclk) {
- LOG_ERROR("Cannot open LinuxGPIOD swclk_gpiochip %d", swclk_gpiochip);
- goto out_error;
+ /*
+ * swdio and its buffer should be initialized in the order that prevents
+ * two outputs from being connected together. This will occur if the
+ * swdio GPIO is configured as an output while the external buffer is
+ * configured to send the swdio signal from the target to the GPIO.
+ */
+ if (adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].init_state == ADAPTER_GPIO_INIT_STATE_INPUT) {
+ retval1 = helper_get_line(ADAPTER_GPIO_IDX_SWDIO);
+ retval2 = helper_get_line(ADAPTER_GPIO_IDX_SWDIO_DIR);
+ } else {
+ retval1 = helper_get_line(ADAPTER_GPIO_IDX_SWDIO_DIR);
+ retval2 = helper_get_line(ADAPTER_GPIO_IDX_SWDIO);
}
- gpiod_chip_swdio = gpiod_chip_open_by_number(swdio_gpiochip);
- if (!gpiod_chip_swdio) {
- LOG_ERROR("Cannot open LinuxGPIOD swdio_gpiochip %d", swdio_gpiochip);
+ if (retval1 != ERROR_OK || retval2 != ERROR_OK)
goto out_error;
- }
-
- if (is_gpio_valid(swdio_dir_gpio)) {
- gpiod_chip_swdio_dir = gpiod_chip_open_by_number(swdio_dir_gpiochip);
- if (!gpiod_chip_swdio_dir) {
- LOG_ERROR("Cannot open LinuxGPIOD swdio_dir_gpiochip %d", swdio_dir_gpiochip);
- goto out_error;
- }
- }
- gpiod_swclk = helper_get_output_line("swclk", gpiod_chip_swclk, swclk_gpio, 1);
- if (!gpiod_swclk)
- goto out_error;
-
- /* Set buffer direction before making SWDIO an output */
- if (is_gpio_valid(swdio_dir_gpio)) {
- gpiod_swdio_dir = helper_get_output_line("swdio_dir", gpiod_chip_swdio_dir, swdio_dir_gpio,
- swdio_dir_is_active_high ? 1 : 0);
- if (!gpiod_swdio_dir)
- goto out_error;
- }
-
- gpiod_swdio = helper_get_output_line("swdio", gpiod_chip_swdio, swdio_gpio, 1);
- if (!gpiod_swdio)
+ if (helper_get_line(ADAPTER_GPIO_IDX_SWCLK) != ERROR_OK)
goto out_error;
}
- if (is_gpio_valid(srst_gpio)) {
- gpiod_chip_srst = gpiod_chip_open_by_number(srst_gpiochip);
- if (!gpiod_chip_srst) {
- LOG_ERROR("Cannot open LinuxGPIOD srst_gpiochip %d", srst_gpiochip);
- goto out_error;
- }
-
- if (jtag_get_reset_config() & RESET_SRST_PUSH_PULL)
- gpiod_srst = helper_get_output_line("srst", gpiod_chip_srst, srst_gpio, 1);
- else
- gpiod_srst = helper_get_open_drain_output_line("srst", gpiod_chip_srst, srst_gpio, 1);
-
- if (!gpiod_srst)
- goto out_error;
- }
-
- if (is_gpio_valid(led_gpio)) {
- gpiod_chip_led = gpiod_chip_open_by_number(led_gpiochip);
- if (!gpiod_chip_led) {
- LOG_ERROR("Cannot open LinuxGPIOD led_gpiochip %d", led_gpiochip);
- goto out_error;
- }
-
- gpiod_led = helper_get_output_line("led", gpiod_chip_led, led_gpio, 0);
- if (!gpiod_led)
+ if (helper_get_line(ADAPTER_GPIO_IDX_SRST) != ERROR_OK ||
+ helper_get_line(ADAPTER_GPIO_IDX_LED) != ERROR_OK)
goto out_error;
- }
return ERROR_OK;
return ERROR_JTAG_INIT_FAILED;
}
-COMMAND_HELPER(linuxgpiod_helper_gpionum, const char *name, int *chip, int *line)
-{
- int i = 0;
- if (CMD_ARGC > 2)
- return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 2) {
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], *chip);
- i = 1;
- }
- if (CMD_ARGC > 0)
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[i], *line);
- command_print(CMD, "LinuxGPIOD %s: chip = %d, num = %d", name, *chip, *line);
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionums)
-{
- if (CMD_ARGC == 4) {
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tck_gpio);
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], tms_gpio);
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], tdi_gpio);
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], tdo_gpio);
- } else if (CMD_ARGC != 0) {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- command_print(CMD,
- "LinuxGPIOD nums: tck = %d, tms = %d, tdi = %d, tdo = %d",
- tck_gpio, tms_gpio, tdi_gpio, tdo_gpio);
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tck)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "tck", &tck_gpiochip,
- &tck_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tms)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "tms", &tms_gpiochip,
- &tms_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tdo)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "tdo", &tdo_gpiochip,
- &tdo_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_tdi)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "tdi", &tdi_gpiochip,
- &tdi_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_srst)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "srst", &srst_gpiochip,
- &srst_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_jtag_gpionum_trst)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "trst", &trst_gpiochip,
- &trst_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_swd_gpionums)
-{
- if (CMD_ARGC == 2) {
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swclk_gpio);
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], swdio_gpio);
- } else if (CMD_ARGC != 0) {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- command_print(CMD,
- "LinuxGPIOD nums: swclk = %d, swdio = %d",
- swclk_gpio, swdio_gpio);
-
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_swd_gpionum_swclk)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "swclk", &swclk_gpiochip,
- &swclk_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_swd_gpionum_swdio)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "swdio", &swdio_gpiochip,
- &swdio_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_swd_gpionum_swdio_dir)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "swdio_dir", &swdio_dir_gpiochip,
- &swdio_dir_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_gpionum_led)
-{
- return CALL_COMMAND_HANDLER(linuxgpiod_helper_gpionum, "led", &led_gpiochip,
- &led_gpio);
-}
-
-COMMAND_HANDLER(linuxgpiod_handle_gpiochip)
-{
- if (CMD_ARGC == 1) {
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], gpiochip);
- tck_gpiochip = gpiochip;
- tms_gpiochip = gpiochip;
- tdi_gpiochip = gpiochip;
- tdo_gpiochip = gpiochip;
- trst_gpiochip = gpiochip;
- srst_gpiochip = gpiochip;
- swclk_gpiochip = gpiochip;
- swdio_gpiochip = gpiochip;
- swdio_dir_gpiochip = gpiochip;
- led_gpiochip = gpiochip;
- }
-
- command_print(CMD, "LinuxGPIOD gpiochip = %d", gpiochip);
- return ERROR_OK;
-}
-
-static const struct command_registration linuxgpiod_subcommand_handlers[] = {
- {
- .name = "jtag_nums",
- .handler = linuxgpiod_handle_jtag_gpionums,
- .mode = COMMAND_CONFIG,
- .help = "gpio numbers for tck, tms, tdi, tdo. (in that order)",
- .usage = "tck tms tdi tdo",
- },
- {
- .name = "tck_num",
- .handler = linuxgpiod_handle_jtag_gpionum_tck,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for tck.",
- .usage = "[chip] tck",
- },
- {
- .name = "tms_num",
- .handler = linuxgpiod_handle_jtag_gpionum_tms,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for tms.",
- .usage = "[chip] tms",
- },
- {
- .name = "tdo_num",
- .handler = linuxgpiod_handle_jtag_gpionum_tdo,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for tdo.",
- .usage = "[chip] tdo",
- },
- {
- .name = "tdi_num",
- .handler = linuxgpiod_handle_jtag_gpionum_tdi,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for tdi.",
- .usage = "[chip] tdi",
- },
- {
- .name = "srst_num",
- .handler = linuxgpiod_handle_jtag_gpionum_srst,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for srst.",
- .usage = "[chip] srst",
- },
- {
- .name = "trst_num",
- .handler = linuxgpiod_handle_jtag_gpionum_trst,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for trst.",
- .usage = "[chip] trst",
- },
- {
- .name = "swd_nums",
- .handler = linuxgpiod_handle_swd_gpionums,
- .mode = COMMAND_CONFIG,
- .help = "gpio numbers for swclk, swdio. (in that order)",
- .usage = "swclk swdio",
- },
- {
- .name = "swclk_num",
- .handler = linuxgpiod_handle_swd_gpionum_swclk,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for swclk.",
- .usage = "[chip] swclk",
- },
- {
- .name = "swdio_num",
- .handler = linuxgpiod_handle_swd_gpionum_swdio,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for swdio.",
- .usage = "[chip] swdio",
- },
- {
- .name = "swdio_dir_num",
- .handler = linuxgpiod_handle_swd_gpionum_swdio_dir,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for swdio_dir.",
- .usage = "[chip] swdio_dir",
- },
- {
- .name = "led_num",
- .handler = linuxgpiod_handle_gpionum_led,
- .mode = COMMAND_CONFIG,
- .help = "gpio chip number (optional) and gpio number for LED.",
- .usage = "[chip] led",
- },
- {
- .name = "gpiochip",
- .handler = linuxgpiod_handle_gpiochip,
- .mode = COMMAND_CONFIG,
- .help = "number of the gpiochip.",
- .usage = "gpiochip",
- },
- COMMAND_REGISTRATION_DONE
-};
-
-static const struct command_registration linuxgpiod_command_handlers[] = {
- {
- .name = "linuxgpiod",
- .mode = COMMAND_ANY,
- .help = "perform linuxgpiod management",
- .chain = linuxgpiod_subcommand_handlers,
- .usage = "",
- },
- COMMAND_REGISTRATION_DONE
-};
-
static const char *const linuxgpiod_transport[] = { "swd", "jtag", NULL };
static struct jtag_interface linuxgpiod_interface = {
struct adapter_driver linuxgpiod_adapter_driver = {
.name = "linuxgpiod",
.transports = linuxgpiod_transport,
- .commands = linuxgpiod_command_handlers,
.init = linuxgpiod_init,
.quit = linuxgpiod_quit,
Code Review / openocd.git / blobdiff