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drivers/bcm2835gpio: Migrate to adapter gpio commands 

Use the new "adapter gpio" commands to configure the GPIOs used by the
bcm2835gpio driver. The driver supports only 1 chip (gpiochip0).

The reset function now honours the srst_open_drain and trst_open_drain
options.

Signed-off-by: Steve Marple <stevemarple@googlemail.com>
Change-Id: I5b6c68b16362000cf5141a83394549d2bf3af108
Reviewed-on: https://review.openocd.org/c/openocd/+/7123
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Steve Marple 2022-06-25 23:45:18 +01:00 committed by Antonio Borneo
parent e643a494d4
commit 0dd969d83b
7 changed files with 460 additions and 457 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
doc/openocd.texi
View File

@ -3292,66 +3292,12 @@ able to coexist nicely with both sysfs bitbanging and various
peripherals' kernel drivers. The driver restores the previous
configuration on exit.
GPIO numbers >= 32 can't be used for performance reasons.
GPIO numbers >= 32 can't be used for performance reasons. GPIO configuration is
handled by the generic command @ref{adapter gpio, @command{adapter gpio}}.
See @file{interface/raspberrypi-native.cfg} for a sample config and
pinout.
@deffn {Config Command} {bcm2835gpio jtag_nums} @var{tck} @var{tms} @var{tdi} @var{tdo}
Set JTAG transport GPIO numbers for TCK, TMS, TDI, and TDO (in that order).
Must be specified to enable JTAG transport. These pins can also be specified
individually.
@end deffn
@deffn {Config Command} {bcm2835gpio tck_num} @var{tck}
Set TCK GPIO number. Must be specified to enable JTAG transport. Can also be
specified using the configuration command @command{bcm2835gpio jtag_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio tms_num} @var{tms}
Set TMS GPIO number. Must be specified to enable JTAG transport. Can also be
specified using the configuration command @command{bcm2835gpio jtag_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio tdo_num} @var{tdo}
Set TDO GPIO number. Must be specified to enable JTAG transport. Can also be
specified using the configuration command @command{bcm2835gpio jtag_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio tdi_num} @var{tdi}
Set TDI GPIO number. Must be specified to enable JTAG transport. Can also be
specified using the configuration command @command{bcm2835gpio jtag_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio swd_nums} @var{swclk} @var{swdio}
Set SWD transport GPIO numbers for SWCLK and SWDIO (in that order). Must be
specified to enable SWD transport. These pins can also be specified individually.
@end deffn
@deffn {Config Command} {bcm2835gpio swclk_num} @var{swclk}
Set SWCLK GPIO number. Must be specified to enable SWD transport. Can also be
specified using the configuration command @command{bcm2835gpio swd_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio swdio_num} @var{swdio}
Set SWDIO GPIO number. Must be specified to enable SWD transport. Can also be
specified using the configuration command @command{bcm2835gpio swd_nums}.
@end deffn
@deffn {Config Command} {bcm2835gpio swdio_dir_num} @var{swdio} @var{dir}
Set SWDIO direction control pin GPIO number. If specified, this pin can be used
to control the direction of an external buffer on the SWDIO pin (set=output
mode, clear=input mode). If not specified, this feature is disabled.
@end deffn
@deffn {Config Command} {bcm2835gpio srst_num} @var{srst}
Set SRST GPIO number. Must be specified to enable SRST.
@end deffn
@deffn {Config Command} {bcm2835gpio trst_num} @var{trst}
Set TRST GPIO number. Must be specified to enable TRST.
@end deffn
@deffn {Config Command} {bcm2835gpio speed_coeffs} @var{speed_coeff} @var{speed_offset}
Set SPEED_COEFF and SPEED_OFFSET for delay calculations. If unspecified,
speed_coeff defaults to 113714, and speed_offset defaults to 28.

594
src/jtag/drivers/bcm2835gpio.c
View File

@ -12,6 +12,7 @@
#include "config.h"
#endif
#include <jtag/adapter.h>
#include <jtag/interface.h>
#include <transport/transport.h>
#include "bitbang.h"
@ -24,13 +25,17 @@ uint32_t bcm2835_peri_base = 0x20000000;
#define BCM2835_PADS_GPIO_0_27 (bcm2835_peri_base + 0x100000)
#define BCM2835_PADS_GPIO_0_27_OFFSET (0x2c / 4)
/* See "GPIO Function Select Registers (GPFSELn)" in "Broadcom BCM2835 ARM Peripherals" datasheet. */
#define BCM2835_GPIO_MODE_INPUT 0
#define BCM2835_GPIO_MODE_OUTPUT 1
/* GPIO setup macros */
#define MODE_GPIO(g) (*(pio_base+((g)/10))>>(((g)%10)*3) & 7)
#define INP_GPIO(g) do { *(pio_base+((g)/10)) &= ~(7<<(((g)%10)*3)); } while (0)
#define SET_MODE_GPIO(g, m) do { /* clear the mode bits first, then set as necessary */ \
INP_GPIO(g); \
*(pio_base+((g)/10)) |= ((m)<<(((g)%10)*3)); } while (0)
#define OUT_GPIO(g) SET_MODE_GPIO(g, 1)
#define OUT_GPIO(g) SET_MODE_GPIO(g, BCM2835_GPIO_MODE_OUTPUT)
#define GPIO_SET (*(pio_base+7)) /* sets bits which are 1, ignores bits which are 0 */
#define GPIO_CLR (*(pio_base+10)) /* clears bits which are 1, ignores bits which are 0 */
@ -40,64 +45,109 @@ static int dev_mem_fd;
static volatile uint32_t *pio_base = MAP_FAILED;
static volatile uint32_t *pads_base = MAP_FAILED;
static bb_value_t bcm2835gpio_read(void);
static int bcm2835gpio_write(int tck, int tms, int tdi);
static int bcm2835_swdio_read(void);
static void bcm2835_swdio_drive(bool is_output);
static int bcm2835gpio_swd_write(int swclk, int swdio);
static int bcm2835gpio_init(void);
static int bcm2835gpio_quit(void);
static struct bitbang_interface bcm2835gpio_bitbang = {
.read = bcm2835gpio_read,
.write = bcm2835gpio_write,
.swdio_read = bcm2835_swdio_read,
.swdio_drive = bcm2835_swdio_drive,
.swd_write = bcm2835gpio_swd_write,
.blink = NULL
};
/* GPIO numbers for each signal. Negative values are invalid */
static int tck_gpio = -1;
static int tck_gpio_mode;
static int tms_gpio = -1;
static int tms_gpio_mode;
static int tdi_gpio = -1;
static int tdi_gpio_mode;
static int tdo_gpio = -1;
static int tdo_gpio_mode;
static int trst_gpio = -1;
static int trst_gpio_mode;
static int srst_gpio = -1;
static int srst_gpio_mode;
static int swclk_gpio = -1;
static int swclk_gpio_mode;
static int swdio_gpio = -1;
static int swdio_gpio_mode;
static int swdio_dir_gpio = -1;
static int swdio_dir_gpio_mode;
/* Transition delay coefficients */
static int speed_coeff = 113714;
static int speed_offset = 28;
static unsigned int jtag_delay;
static int is_gpio_valid(int gpio)
static const struct adapter_gpio_config *adapter_gpio_config;
static int initial_gpio_mode[ADAPTER_GPIO_IDX_NUM];
static bool is_gpio_config_valid(enum adapter_gpio_config_index idx)
{
return gpio >= 0 && gpio <= 31;
/* Only chip 0 is supported, accept unset value (-1) too */
return adapter_gpio_config[idx].chip_num >= -1
&& adapter_gpio_config[idx].chip_num <= 0
&& adapter_gpio_config[idx].gpio_num >= 0
&& adapter_gpio_config[idx].gpio_num <= 31;
}
static void set_gpio_value(const struct adapter_gpio_config *gpio_config, int value)
{
value = value ^ (gpio_config->active_low ? 1 : 0);
switch (gpio_config->drive) {
case ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL:
if (value)
GPIO_SET = 1 << gpio_config->gpio_num;
else
GPIO_CLR = 1 << gpio_config->gpio_num;
/* For performance reasons assume the GPIO is already set as an output
* and therefore the call can be omitted here.
*/
break;
case ADAPTER_GPIO_DRIVE_MODE_OPEN_DRAIN:
if (value) {
INP_GPIO(gpio_config->gpio_num);
} else {
GPIO_CLR = 1 << gpio_config->gpio_num;
OUT_GPIO(gpio_config->gpio_num);
}
break;
case ADAPTER_GPIO_DRIVE_MODE_OPEN_SOURCE:
if (value) {
GPIO_SET = 1 << gpio_config->gpio_num;
OUT_GPIO(gpio_config->gpio_num);
} else {
INP_GPIO(gpio_config->gpio_num);
}
break;
}
}
static void restore_gpio(enum adapter_gpio_config_index idx)
{
if (is_gpio_config_valid(idx))
SET_MODE_GPIO(adapter_gpio_config[idx].gpio_num, initial_gpio_mode[idx]);
}
static void initialize_gpio(enum adapter_gpio_config_index idx)
{
if (!is_gpio_config_valid(idx))
return;
initial_gpio_mode[idx] = MODE_GPIO(adapter_gpio_config[idx].gpio_num);
LOG_DEBUG("saved GPIO mode for %s (GPIO %d %d): %d",
adapter_gpio_get_name(idx), adapter_gpio_config[idx].chip_num, adapter_gpio_config[idx].gpio_num,
initial_gpio_mode[idx]);
if (adapter_gpio_config[idx].pull != ADAPTER_GPIO_PULL_NONE) {
LOG_WARNING("BCM2835 GPIO does not support pull-up or pull-down settings (signal %s)",
adapter_gpio_get_name(idx));
}
switch (adapter_gpio_config[idx].init_state) {
case ADAPTER_GPIO_INIT_STATE_INACTIVE:
set_gpio_value(&adapter_gpio_config[idx], 0);
break;
case ADAPTER_GPIO_INIT_STATE_ACTIVE:
set_gpio_value(&adapter_gpio_config[idx], 1);
break;
case ADAPTER_GPIO_INIT_STATE_INPUT:
INP_GPIO(adapter_gpio_config[idx].gpio_num);
break;
}
/* Direction for non push-pull is already set by set_gpio_value() */
if (adapter_gpio_config[idx].drive == ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL)
OUT_GPIO(adapter_gpio_config[idx].gpio_num);
}
static bb_value_t bcm2835gpio_read(void)
{
return (GPIO_LEV & 1<<tdo_gpio) ? BB_HIGH : BB_LOW;
unsigned int shift = adapter_gpio_config[ADAPTER_GPIO_IDX_TDO].gpio_num;
uint32_t value = (GPIO_LEV >> shift) & 1;
return value ^ (adapter_gpio_config[ADAPTER_GPIO_IDX_TDO].active_low ? BB_HIGH : BB_LOW);
}
static int bcm2835gpio_write(int tck, int tms, int tdi)
{
uint32_t set = tck<<tck_gpio | tms<<tms_gpio | tdi<<tdi_gpio;
uint32_t clear = !tck<<tck_gpio | !tms<<tms_gpio | !tdi<<tdi_gpio;
uint32_t set = tck << adapter_gpio_config[ADAPTER_GPIO_IDX_TCK].gpio_num |
tms << adapter_gpio_config[ADAPTER_GPIO_IDX_TMS].gpio_num |
tdi << adapter_gpio_config[ADAPTER_GPIO_IDX_TDI].gpio_num;
uint32_t clear = !tck << adapter_gpio_config[ADAPTER_GPIO_IDX_TCK].gpio_num |
!tms << adapter_gpio_config[ADAPTER_GPIO_IDX_TMS].gpio_num |
!tdi << adapter_gpio_config[ADAPTER_GPIO_IDX_TDI].gpio_num;
GPIO_SET = set;
GPIO_CLR = clear;
@ -108,10 +158,16 @@ static int bcm2835gpio_write(int tck, int tms, int tdi)
return ERROR_OK;
}
static int bcm2835gpio_swd_write(int swclk, int swdio)
/* Requires push-pull drive mode for swclk and swdio */
static int bcm2835gpio_swd_write_fast(int swclk, int swdio)
{
uint32_t set = swclk << swclk_gpio | swdio << swdio_gpio;
uint32_t clear = !swclk << swclk_gpio | !swdio << swdio_gpio;
swclk = swclk ^ (adapter_gpio_config[ADAPTER_GPIO_IDX_SWCLK].active_low ? 1 : 0);
swdio = swdio ^ (adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].active_low ? 1 : 0);
uint32_t set = swclk << adapter_gpio_config[ADAPTER_GPIO_IDX_SWCLK].gpio_num |
swdio << adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num;
uint32_t clear = !swclk << adapter_gpio_config[ADAPTER_GPIO_IDX_SWCLK].gpio_num |
!swdio << adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num;
GPIO_SET = set;
GPIO_CLR = clear;
@ -122,55 +178,62 @@ static int bcm2835gpio_swd_write(int swclk, int swdio)
return ERROR_OK;
}
/* Generic mode that works for open-drain/open-source drive modes, but slower */
static int bcm2835gpio_swd_write_generic(int swclk, int swdio)
{
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO], swdio);
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_SWCLK], swclk); /* Write clock last */
for (unsigned int i = 0; i < jtag_delay; ++i)
asm volatile ("");
return ERROR_OK;
}
/* (1) assert or (0) deassert reset lines */
static int bcm2835gpio_reset(int trst, int srst)
{
uint32_t set = 0;
uint32_t clear = 0;
/* As the "adapter reset_config" command keeps the srst and trst gpio drive
* mode settings in sync we can use our standard set_gpio_value() function
* that honours drive mode and active low.
*/
if (is_gpio_config_valid(ADAPTER_GPIO_IDX_SRST))
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_SRST], srst);
if (is_gpio_valid(trst_gpio)) {
set |= !trst<<trst_gpio;
clear |= trst<<trst_gpio;
}
if (is_gpio_valid(srst_gpio)) {
set |= !srst<<srst_gpio;
clear |= srst<<srst_gpio;
}
GPIO_SET = set;
GPIO_CLR = clear;
if (is_gpio_config_valid(ADAPTER_GPIO_IDX_TRST))
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_TRST], trst);
LOG_DEBUG("BCM2835 GPIO: bcm2835gpio_reset(%d, %d), trst_gpio: %d %d, srst_gpio: %d %d",
trst, srst,
adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].chip_num, adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].gpio_num,
adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].chip_num, adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].gpio_num);
return ERROR_OK;
}
static void bcm2835_swdio_drive(bool is_output)
{
if (is_gpio_valid(swdio_dir_gpio)) {
if (is_output) {
GPIO_SET = 1 << swdio_dir_gpio;
OUT_GPIO(swdio_gpio);
} else {
INP_GPIO(swdio_gpio);
GPIO_CLR = 1 << swdio_dir_gpio;
}
if (is_output) {
if (is_gpio_config_valid(ADAPTER_GPIO_IDX_SWDIO_DIR))
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO_DIR], 1);
OUT_GPIO(adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num);
} else {
if (is_output)
OUT_GPIO(swdio_gpio);
else
INP_GPIO(swdio_gpio);
INP_GPIO(adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num);
if (is_gpio_config_valid(ADAPTER_GPIO_IDX_SWDIO_DIR))
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO_DIR], 0);
}
}
static int bcm2835_swdio_read(void)
{
return !!(GPIO_LEV & 1 << swdio_gpio);
unsigned int shift = adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num;
uint32_t value = (GPIO_LEV >> shift) & 1;
return value ^ (adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].active_low ? 1 : 0);
}
static int bcm2835gpio_khz(int khz, int *jtag_speed)
{
if (!khz) {
LOG_DEBUG("RCLK not supported");
LOG_DEBUG("BCM2835 GPIO: RCLK not supported");
return ERROR_FAIL;
}
*jtag_speed = speed_coeff/khz - speed_offset;
@ -191,121 +254,6 @@ static int bcm2835gpio_speed(int speed)
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_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,
"BCM2835 GPIO config: tck = %d, tms = %d, tdi = %d, tdo = %d",
tck_gpio, tms_gpio, tdi_gpio, tdo_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_tck)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tck_gpio);
command_print(CMD, "BCM2835 GPIO config: tck = %d", tck_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_tms)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tms_gpio);
command_print(CMD, "BCM2835 GPIO config: tms = %d", tms_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_tdo)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tdo_gpio);
command_print(CMD, "BCM2835 GPIO config: tdo = %d", tdo_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_tdi)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], tdi_gpio);
command_print(CMD, "BCM2835 GPIO config: tdi = %d", tdi_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_srst)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], srst_gpio);
command_print(CMD, "BCM2835 GPIO config: srst = %d", srst_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_jtag_gpionum_trst)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], trst_gpio);
command_print(CMD, "BCM2835 GPIO config: trst = %d", trst_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_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,
"BCM2835 GPIO nums: swclk = %d, swdio = %d",
swclk_gpio, swdio_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_swd_gpionum_swclk)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swclk_gpio);
command_print(CMD, "BCM2835 num: swclk = %d", swclk_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_swd_gpionum_swdio)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swdio_gpio);
command_print(CMD, "BCM2835 num: swdio = %d", swdio_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_swd_dir_gpionum_swdio)
{
if (CMD_ARGC == 1)
COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], swdio_dir_gpio);
command_print(CMD, "BCM2835 num: swdio_dir = %d", swdio_dir_gpio);
return ERROR_OK;
}
COMMAND_HANDLER(bcm2835gpio_handle_speed_coeffs)
{
if (CMD_ARGC == 2) {
@ -329,83 +277,6 @@ COMMAND_HANDLER(bcm2835gpio_handle_peripheral_base)
}
static const struct command_registration bcm2835gpio_subcommand_handlers[] = {
{
.name = "jtag_nums",
.handler = &bcm2835gpio_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 = &bcm2835gpio_handle_jtag_gpionum_tck,
.mode = COMMAND_CONFIG,
.help = "gpio number for tck.",
.usage = "[tck]",
},
{
.name = "tms_num",
.handler = &bcm2835gpio_handle_jtag_gpionum_tms,
.mode = COMMAND_CONFIG,
.help = "gpio number for tms.",
.usage = "[tms]",
},
{
.name = "tdo_num",
.handler = &bcm2835gpio_handle_jtag_gpionum_tdo,
.mode = COMMAND_CONFIG,
.help = "gpio number for tdo.",
.usage = "[tdo]",
},
{
.name = "tdi_num",
.handler = &bcm2835gpio_handle_jtag_gpionum_tdi,
.mode = COMMAND_CONFIG,
.help = "gpio number for tdi.",
.usage = "[tdi]",
},
{
.name = "swd_nums",
.handler = &bcm2835gpio_handle_swd_gpionums,
.mode = COMMAND_CONFIG,
.help = "gpio numbers for swclk, swdio. (in that order)",
.usage = "[swclk swdio]",
},
{
.name = "swclk_num",
.handler = &bcm2835gpio_handle_swd_gpionum_swclk,
.mode = COMMAND_CONFIG,
.help = "gpio number for swclk.",
.usage = "[swclk]",
},
{
.name = "swdio_num",
.handler = &bcm2835gpio_handle_swd_gpionum_swdio,
.mode = COMMAND_CONFIG,
.help = "gpio number for swdio.",
.usage = "[swdio]",
},
{
.name = "swdio_dir_num",
.handler = &bcm2835gpio_handle_swd_dir_gpionum_swdio,
.mode = COMMAND_CONFIG,
.help = "gpio number for swdio direction control pin (set=output mode, clear=input mode)",
.usage = "[swdio_dir]",
},
{
.name = "srst_num",
.handler = &bcm2835gpio_handle_jtag_gpionum_srst,
.mode = COMMAND_CONFIG,
.help = "gpio number for srst.",
.usage = "[srst]",
},
{
.name = "trst_num",
.handler = &bcm2835gpio_handle_jtag_gpionum_trst,
.mode = COMMAND_CONFIG,
.help = "gpio number for trst.",
.usage = "[trst]",
},
{
.name = "speed_coeffs",
.handler = &bcm2835gpio_handle_speed_coeffs,
@ -435,49 +306,26 @@ static const struct command_registration bcm2835gpio_command_handlers[] = {
COMMAND_REGISTRATION_DONE
};
static const char * const bcm2835_transports[] = { "jtag", "swd", NULL };
static struct jtag_interface bcm2835gpio_interface = {
.supported = DEBUG_CAP_TMS_SEQ,
.execute_queue = bitbang_execute_queue,
};
struct adapter_driver bcm2835gpio_adapter_driver = {
.name = "bcm2835gpio",
.transports = bcm2835_transports,
.commands = bcm2835gpio_command_handlers,
.init = bcm2835gpio_init,
.quit = bcm2835gpio_quit,
.reset = bcm2835gpio_reset,
.speed = bcm2835gpio_speed,
.khz = bcm2835gpio_khz,
.speed_div = bcm2835gpio_speed_div,
.jtag_ops = &bcm2835gpio_interface,
.swd_ops = &bitbang_swd,
};
static bool bcm2835gpio_jtag_mode_possible(void)
{
if (!is_gpio_valid(tck_gpio))
return 0;
if (!is_gpio_valid(tms_gpio))
return 0;
if (!is_gpio_valid(tdi_gpio))
return 0;
if (!is_gpio_valid(tdo_gpio))
return 0;
return 1;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TCK))
return false;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TMS))
return false;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TDI))
return false;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_TDO))
return false;
return true;
}
static bool bcm2835gpio_swd_mode_possible(void)
{
if (!is_gpio_valid(swclk_gpio))
return 0;
if (!is_gpio_valid(swdio_gpio))
return 0;
return 1;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_SWCLK))
return false;
if (!is_gpio_config_valid(ADAPTER_GPIO_IDX_SWDIO))
return false;
return true;
}
static void bcm2835gpio_munmap(void)
@ -493,12 +341,22 @@ static void bcm2835gpio_munmap(void)
}
}
static struct bitbang_interface bcm2835gpio_bitbang = {
.read = bcm2835gpio_read,
.write = bcm2835gpio_write,
.swdio_read = bcm2835_swdio_read,
.swdio_drive = bcm2835_swdio_drive,
.swd_write = bcm2835gpio_swd_write_generic,
.blink = NULL
};
static int bcm2835gpio_init(void)
{
bitbang_interface = &bcm2835gpio_bitbang;
LOG_INFO("BCM2835 GPIO JTAG/SWD bitbang driver");
bitbang_interface = &bcm2835gpio_bitbang;
adapter_gpio_config = adapter_gpio_get_config();
if (transport_is_jtag() && !bcm2835gpio_jtag_mode_possible()) {
LOG_ERROR("Require tck, tms, tdi and tdo gpios for JTAG mode");
return ERROR_JTAG_INIT_FAILED;
@ -543,58 +401,45 @@ static int bcm2835gpio_init(void)
/* set 4mA drive strength, slew rate limited, hysteresis on */
pads_base[BCM2835_PADS_GPIO_0_27_OFFSET] = 0x5a000008 + 1;
/*
* Configure TDO as an input, and TDI, TCK, TMS, TRST, SRST
* as outputs. Drive TDI and TCK low, and TMS/TRST/SRST high.
/* Configure JTAG/SWD signals. Default directions and initial states are handled
* by adapter.c and "adapter gpio" command.
*/
if (transport_is_jtag()) {
tdo_gpio_mode = MODE_GPIO(tdo_gpio);
tdi_gpio_mode = MODE_GPIO(tdi_gpio);
tck_gpio_mode = MODE_GPIO(tck_gpio);
tms_gpio_mode = MODE_GPIO(tms_gpio);
INP_GPIO(tdo_gpio);
GPIO_CLR = 1<<tdi_gpio | 1<<tck_gpio;
GPIO_SET = 1<<tms_gpio;
OUT_GPIO(tdi_gpio);
OUT_GPIO(tck_gpio);
OUT_GPIO(tms_gpio);
if (is_gpio_valid(trst_gpio)) {
trst_gpio_mode = MODE_GPIO(trst_gpio);
GPIO_SET = 1 << trst_gpio;
OUT_GPIO(trst_gpio);
}
initialize_gpio(ADAPTER_GPIO_IDX_TDO);
initialize_gpio(ADAPTER_GPIO_IDX_TDI);
initialize_gpio(ADAPTER_GPIO_IDX_TMS);
initialize_gpio(ADAPTER_GPIO_IDX_TCK);
initialize_gpio(ADAPTER_GPIO_IDX_TRST);
}
if (transport_is_swd()) {
/* Make buffer an output before the GPIO connected to it */
if (is_gpio_valid(swdio_dir_gpio)) {
swdio_dir_gpio_mode = MODE_GPIO(swdio_dir_gpio);
GPIO_SET = 1 << swdio_dir_gpio;
OUT_GPIO(swdio_dir_gpio);
/* 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 of the AM335x is configured as an output while its
* external buffer is configured to send the swdio signal from the
* target to the AM335x.
*/
if (adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].init_state == ADAPTER_GPIO_INIT_STATE_INPUT) {
initialize_gpio(ADAPTER_GPIO_IDX_SWDIO);
initialize_gpio(ADAPTER_GPIO_IDX_SWDIO_DIR);
} else {
initialize_gpio(ADAPTER_GPIO_IDX_SWDIO_DIR);
initialize_gpio(ADAPTER_GPIO_IDX_SWDIO);
}
swclk_gpio_mode = MODE_GPIO(swclk_gpio);
swdio_gpio_mode = MODE_GPIO(swdio_gpio);
initialize_gpio(ADAPTER_GPIO_IDX_SWCLK);
GPIO_CLR = 1<<swdio_gpio | 1<<swclk_gpio;
OUT_GPIO(swclk_gpio);
OUT_GPIO(swdio_gpio);
if (adapter_gpio_config[ADAPTER_GPIO_IDX_SWCLK].drive == ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL &&
adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].drive == ADAPTER_GPIO_DRIVE_MODE_PUSH_PULL) {
LOG_DEBUG("BCM2835 GPIO using fast mode for SWD write");
bcm2835gpio_bitbang.swd_write = bcm2835gpio_swd_write_fast;
} else {
LOG_DEBUG("BCM2835 GPIO using generic mode for SWD write");
bcm2835gpio_bitbang.swd_write = bcm2835gpio_swd_write_generic;
}
}
if (is_gpio_valid(srst_gpio)) {
srst_gpio_mode = MODE_GPIO(srst_gpio);
GPIO_SET = 1 << srst_gpio;
OUT_GPIO(srst_gpio);
}
LOG_DEBUG("saved pinmux settings: tck %d tms %d tdi %d "
"tdo %d trst %d srst %d", tck_gpio_mode, tms_gpio_mode,
tdi_gpio_mode, tdo_gpio_mode, trst_gpio_mode, srst_gpio_mode);
initialize_gpio(ADAPTER_GPIO_IDX_SRST);
return ERROR_OK;
}
@ -602,26 +447,51 @@ static int bcm2835gpio_init(void)
static int bcm2835gpio_quit(void)
{
if (transport_is_jtag()) {
SET_MODE_GPIO(tdo_gpio, tdo_gpio_mode);
SET_MODE_GPIO(tdi_gpio, tdi_gpio_mode);
SET_MODE_GPIO(tck_gpio, tck_gpio_mode);
SET_MODE_GPIO(tms_gpio, tms_gpio_mode);
if (is_gpio_valid(trst_gpio))
SET_MODE_GPIO(trst_gpio, trst_gpio_mode);
restore_gpio(ADAPTER_GPIO_IDX_TDO);
restore_gpio(ADAPTER_GPIO_IDX_TDI);
restore_gpio(ADAPTER_GPIO_IDX_TCK);
restore_gpio(ADAPTER_GPIO_IDX_TMS);
restore_gpio(ADAPTER_GPIO_IDX_TRST);
}
if (transport_is_swd()) {
SET_MODE_GPIO(swclk_gpio, swclk_gpio_mode);
SET_MODE_GPIO(swdio_gpio, swdio_gpio_mode);
/* Restore swdio/swdio_dir to their initial modes, even if that means
* connecting two outputs. Begin by making swdio an input so that the
* current and final states of swdio and swdio_dir do not have to be
* considered to calculate the safe restoration order.
*/
INP_GPIO(adapter_gpio_config[ADAPTER_GPIO_IDX_SWDIO].gpio_num);
restore_gpio(ADAPTER_GPIO_IDX_SWDIO_DIR);
restore_gpio(ADAPTER_GPIO_IDX_SWDIO);
restore_gpio(ADAPTER_GPIO_IDX_SWCLK);
}
if (is_gpio_valid(srst_gpio))
SET_MODE_GPIO(srst_gpio, srst_gpio_mode);
if (is_gpio_valid(swdio_dir_gpio))
SET_MODE_GPIO(swdio_dir_gpio, swdio_dir_gpio_mode);
restore_gpio(ADAPTER_GPIO_IDX_SRST);
bcm2835gpio_munmap();
return ERROR_OK;
}
static const char * const bcm2835_transports[] = { "jtag", "swd", NULL };
static struct jtag_interface bcm2835gpio_interface = {
.supported = DEBUG_CAP_TMS_SEQ,
.execute_queue = bitbang_execute_queue,
};
struct adapter_driver bcm2835gpio_adapter_driver = {
.name = "bcm2835gpio",
.transports = bcm2835_transports,
.commands = bcm2835gpio_command_handlers,
.init = bcm2835gpio_init,
.quit = bcm2835gpio_quit,
.reset = bcm2835gpio_reset,
.speed = bcm2835gpio_speed,
.khz = bcm2835gpio_khz,
.speed_div = bcm2835gpio_speed_div,
.jtag_ops = &bcm2835gpio_interface,
.swd_ops = &bitbang_swd,
};

118
src/jtag/startup.tcl
View File

@ -455,70 +455,140 @@ proc vsllink_usb_interface args {
eval vsllink usb_interface $args
}
lappend _telnet_autocomplete_skip bcm2835_gpio_helper
proc bcm2835_gpio_helper {sig_name args} {
set caller [lindex [info level -1] 0]
echo "DEPRECATED! use 'adapter gpio $sig_name' not '$caller'"
switch [llength $args] {
0 {}
1 {eval adapter gpio $sig_name $args -chip 0}
2 {eval adapter gpio $sig_name [lindex $args 1] -chip [lindex $args 0]}
default {return -code 1 -level 1 "$caller: syntax error"}
}
eval adapter gpio $sig_name
}
lappend _telnet_autocomplete_skip bcm2835gpio_jtag_nums
proc bcm2835gpio_jtag_nums args {
echo "DEPRECATED! use 'bcm2835gpio jtag_nums' not 'bcm2835gpio_jtag_nums'"
eval bcm2835gpio jtag_nums $args
proc bcm2835gpio_jtag_nums {tck_num tms_num tdi_num tdo_num} {
echo "DEPRECATED! use 'adapter gpio tck; adapter gpio tms; adapter gpio tdi; adapter gpio tdo' not 'bcm2835gpio_jtag_nums'"
eval adapter gpio tck $tck_num -chip 0
eval adapter gpio tms $tms_num -chip 0
eval adapter gpio tdi $tdi_num -chip 0
eval adapter gpio tdo $tdo_num -chip 0
}
lappend _telnet_autocomplete_skip bcm2835gpio_tck_num
proc bcm2835gpio_tck_num args {
echo "DEPRECATED! use 'bcm2835gpio tck_num' not 'bcm2835gpio_tck_num'"
eval bcm2835gpio tck_num $args
eval bcm2835_gpio_helper tck $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_tms_num
proc bcm2835gpio_tms_num args {
echo "DEPRECATED! use 'bcm2835gpio tms_num' not 'bcm2835gpio_tms_num'"
eval bcm2835gpio tms_num $args
eval bcm2835_gpio_helper tms $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_tdo_num
proc bcm2835gpio_tdo_num args {
echo "DEPRECATED! use 'bcm2835gpio tdo_num' not 'bcm2835gpio_tdo_num'"
eval bcm2835gpio tdo_num $args
eval bcm2835_gpio_helper tdo $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_tdi_num
proc bcm2835gpio_tdi_num args {
echo "DEPRECATED! use 'bcm2835gpio tdi_num' not 'bcm2835gpio_tdi_num'"
eval bcm2835gpio tdi_num $args
eval bcm2835_gpio_helper tdi $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_swd_nums
proc bcm2835gpio_swd_nums args {
echo "DEPRECATED! use 'bcm2835gpio swd_nums' not 'bcm2835gpio_swd_nums'"
eval bcm2835gpio swd_nums $args
proc bcm2835gpio_swd_nums {swclk_num swdio_num} {
echo "DEPRECATED! use 'adapter gpio swclk; adapter gpio swdio' not 'bcm2835gpio_swd_nums'"
eval adapter gpio swclk $swclk_num -chip 0
eval adapter gpio swdio $swdio_num -chip 0
}
lappend _telnet_autocomplete_skip bcm2835gpio_swclk_num
proc bcm2835gpio_swclk_num args {
echo "DEPRECATED! use 'bcm2835gpio swclk_num' not 'bcm2835gpio_swclk_num'"
eval bcm2835gpio swclk_num $args
eval bcm2835_gpio_helper swclk $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_swdio_num
proc bcm2835gpio_swdio_num args {
echo "DEPRECATED! use 'bcm2835gpio swdio_num' not 'bcm2835gpio_swdio_num'"
eval bcm2835gpio swdio_num $args
eval bcm2835_gpio_helper swdio $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_swdio_dir_num
proc bcm2835gpio_swdio_dir_num args {
echo "DEPRECATED! use 'bcm2835gpio swdio_dir_num' not 'bcm2835gpio_swdio_dir_num'"
eval bcm2835gpio swdio_dir_num $args
eval bcm2835_gpio_helper swdio_dir $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_srst_num
proc bcm2835gpio_srst_num args {
echo "DEPRECATED! use 'bcm2835gpio srst_num' not 'bcm2835gpio_srst_num'"
eval bcm2835gpio srst_num $args
eval bcm2835_gpio_helper srst $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_trst_num
proc bcm2835gpio_trst_num args {
echo "DEPRECATED! use 'bcm2835gpio trst_num' not 'bcm2835gpio_trst_num'"
eval bcm2835gpio trst_num $args
eval bcm2835_gpio_helper trst $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio jtag_nums"
proc "bcm2835gpio jtag_nums" {tck_num tms_num tdi_num tdo_num} {
echo "DEPRECATED! use 'adapter gpio tck; adapter gpio tms; adapter gpio tdi; adapter gpio tdo' not 'bcm2835gpio jtag_nums'"
eval adapter gpio tck $tck_num -chip 0
eval adapter gpio tms $tms_num -chip 0
eval adapter gpio tdi $tdi_num -chip 0
eval adapter gpio tdo $tdo_num -chip 0
}
lappend _telnet_autocomplete_skip "bcm2835gpio tck_num"
proc "bcm2835gpio tck_num" args {
eval bcm2835_gpio_helper tck $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio tms_num"
proc "bcm2835gpio tms_num" args {
eval bcm2835_gpio_helper tms $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio tdo_num"
proc "bcm2835gpio tdo_num" args {
eval bcm2835_gpio_helper tdo $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio tdi_num"
proc "bcm2835gpio tdi_num" args {
eval bcm2835_gpio_helper tdi $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio swd_nums"
proc "bcm2835gpio swd_nums" {swclk_num swdio_num} {
echo "DEPRECATED! use 'adapter gpio swclk; adapter gpio swdio' not 'bcm2835gpio swd_nums'"
eval adapter gpio swclk $swclk_num -chip 0
eval adapter gpio swdio $swdio_num -chip 0
}
lappend _telnet_autocomplete_skip "bcm2835gpio swclk_num"
proc "bcm2835gpio swclk_num" args {
eval bcm2835_gpio_helper swclk $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio swdio_num"
proc "bcm2835gpio swdio_num" args {
eval bcm2835_gpio_helper swdio $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio swdio_dir_num"
proc "bcm2835gpio swdio_dir_num" args {
eval bcm2835_gpio_helper swdio_dir $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio srst_num"
proc "bcm2835gpio srst_num" args {
eval bcm2835_gpio_helper srst $args
}
lappend _telnet_autocomplete_skip "bcm2835gpio trst_num"
proc "bcm2835gpio trst_num" args {
eval bcm2835_gpio_helper trst $args
}
lappend _telnet_autocomplete_skip bcm2835gpio_speed_coeffs

18
tcl/interface/jtag_hat_rpi2.cfg
View File

@ -7,31 +7,35 @@
adapter driver bcm2835gpio
bcm2835gpio_peripheral_base 0x3F000000
bcm2835gpio peripheral_base 0x3F000000
# Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET
# These depend on system clock, calibrated for stock 700MHz
# bcm2835gpio_speed SPEED_COEFF SPEED_OFFSET
bcm2835gpio_speed_coeffs 146203 36
bcm2835gpio speed_coeffs 146203 36
# Each of the JTAG lines need a gpio number set: tck tms tdi tdo
# Header pin numbers: 23 22 19 21
bcm2835gpio_jtag_nums 11 25 10 9
adapter gpio tck -chip 0 11
adapter gpio tms -chip 0 25
adapter gpio tdi -chip 0 10
adapter gpio tdo -chip 0 9
# Each of the SWD lines need a gpio number set: swclk swdio
# Header pin numbers: 23 22
bcm2835gpio_swd_nums 11 25
adapter gpio swclk -chip 0 11
adapter gpio swdio -chip 0 25
# Direction pin for SWDIO level shifting buffer
bcm2835gpio_swdio_dir_num 6
adapter gpio swdio_dir -chip 0 6
# If you define trst or srst, use appropriate reset_config
# Header pin numbers: TRST - 26, SRST - 18
bcm2835gpio_trst_num 7
adapter gpio trst -chip 0 7
#reset_config trst_only
bcm2835gpio_srst_num 24
adapter gpio srst -chip 0 24
#reset_config srst_only
# or if you have both connected

12
tcl/interface/raspberrypi-native.cfg
View File

@ -21,19 +21,23 @@ bcm2835gpio speed_coeffs 113714 28
# Each of the JTAG lines need a gpio number set: tck tms tdi tdo
# Header pin numbers: 23 22 19 21
bcm2835gpio jtag_nums 11 25 10 9
adapter gpio tck -chip 0 11
adapter gpio tms -chip 0 25
adapter gpio tdi -chip 0 10
adapter gpio tdo -chip 0 9
# Each of the SWD lines need a gpio number set: swclk swdio
# Header pin numbers: 23 22
bcm2835gpio swd_nums 11 25
adapter gpio swclk -chip 0 11
adapter gpio swdio -chip 0 25
# If you define trst or srst, use appropriate reset_config
# Header pin numbers: TRST - 26, SRST - 18
# bcm2835gpio trst_num 7
# adapter gpio trst -chip 0 7
# reset_config trst_only
# bcm2835gpio srst_num 24
# adapter gpio srst -chip 0 24
# reset_config srst_only srst_push_pull
# or if you have both connected,

12
tcl/interface/raspberrypi2-native.cfg
View File

@ -21,19 +21,23 @@ bcm2835gpio speed_coeffs 146203 36
# Each of the JTAG lines need a gpio number set: tck tms tdi tdo
# Header pin numbers: 23 22 19 21
bcm2835gpio jtag_nums 11 25 10 9
adapter gpio tck -chip 0 11
adapter gpio tms -chip 0 25
adapter gpio tdi -chip 0 10
adapter gpio tdo -chip 0 9
# Each of the SWD lines need a gpio number set: swclk swdio
# Header pin numbers: 23 22
bcm2835gpio swd_nums 11 25
adapter gpio swclk -chip 0 11
adapter gpio swdio -chip 0 25
# If you define trst or srst, use appropriate reset_config
# Header pin numbers: TRST - 26, SRST - 18
# bcm2835gpio trst_num 7
# adapter gpio trst -chip 0 7
# reset_config trst_only
# bcm2835gpio srst_num 24
# adapter gpio srst -chip 0 24
# reset_config srst_only srst_push_pull
# or if you have both connected,

105
testing/test-bcm2835gpio-deprecated-commands.cfg Normal file
View File

@ -0,0 +1,105 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# OpenOCD script to test that the deprecated "bcm2835gpio *" and "bcm2835gpio_*"
# commands produce the expected results. Run this command as:
# openocd -f <path>/test-bcm2835gpio-deprecated-commands.cfg
# Raise an error if the "actual" value does not match the "expected" value. Trim
# whitespace (including newlines) from strings before comparing.
proc expected_value {expected actual} {
if {[string trim $expected] ne [string trim $actual]} {
error [puts "ERROR: '${actual}' != '${expected}'"]
}
}
set supported_signals {tdo tdi tms tck trst swdio swdio_dir swclk srst}
adapter speed 100
adapter driver bcm2835gpio
puts "Driver is '[adapter name]'"
expected_value "bcm2835gpio" [adapter name]
echo [adapter gpio]
#####################################
# Test the "bcm2835gpio *" commands
# Change the GPIO chip for all signals. Don't check directly here, do so when
# each signal command is tested.
# bcm2835gpio gpiochip 0
bcm2835gpio jtag_nums 1 2 3 4
expected_value "adapter gpio tck (output): num 1, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tck]
expected_value "adapter gpio tms (output): num 2, chip 0, active-high, push-pull, pull-none, init-state active" [eval adapter gpio tms]
expected_value "adapter gpio tdi (output): num 3, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tdi]
expected_value "adapter gpio tdo (input): num 4, chip 0, active-high, pull-none, init-state input" [eval adapter gpio tdo]
bcm2835gpio tck_num 5
expected_value "adapter gpio tck (output): num 5, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tck]
bcm2835gpio tms_num 6
expected_value "adapter gpio tms (output): num 6, chip 0, active-high, push-pull, pull-none, init-state active" [eval adapter gpio tms]
bcm2835gpio tdi_num 7
expected_value "adapter gpio tdi (output): num 7, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tdi]
bcm2835gpio tdo_num 8
expected_value "adapter gpio tdo (input): num 8, chip 0, active-high, pull-none, init-state input" [eval adapter gpio tdo]
bcm2835gpio swd_nums 9 10
expected_value "adapter gpio swclk (output): num 9, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swclk]
expected_value "adapter gpio swdio (bidirectional): num 10, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swdio]
bcm2835gpio swclk_num 11
expected_value "adapter gpio swclk (output): num 11, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swclk]
bcm2835gpio swdio_num 12
expected_value "adapter gpio swdio (bidirectional): num 12, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swdio]
bcm2835gpio swdio_dir_num 13
expected_value "adapter gpio swdio_dir (output): num 13, chip 0, active-high, push-pull, pull-none" [eval adapter gpio swdio_dir]
bcm2835gpio srst_num 14
expected_value "adapter gpio srst (output): num 14, chip 0, active-low, pull-none, init-state inactive" [eval adapter gpio srst]
bcm2835gpio trst_num 15
expected_value "adapter gpio trst (output): num 15, chip 0, active-low, pull-none, init-state inactive" [eval adapter gpio trst]
#####################################
# Test the old bcm2835gpio_* commands
# Reset the GPIO chip for all signals. Don't check directly here, do so when
# each signal command is tested.
foreach sig_name $supported_signals {
eval adapter gpio $sig_name -chip -1
}
bcm2835gpio_jtag_nums 17 18 19 20
expected_value "adapter gpio tck (output): num 17, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tck]
expected_value "adapter gpio tms (output): num 18, chip 0, active-high, push-pull, pull-none, init-state active" [eval adapter gpio tms]
expected_value "adapter gpio tdi (output): num 19, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tdi]
expected_value "adapter gpio tdo (input): num 20, chip 0, active-high, pull-none, init-state input" [eval adapter gpio tdo]
bcm2835gpio_tck_num 21
expected_value "adapter gpio tck (output): num 21, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tck]
bcm2835gpio_tms_num 22
expected_value "adapter gpio tms (output): num 22, chip 0, active-high, push-pull, pull-none, init-state active" [eval adapter gpio tms]
bcm2835gpio_tdi_num 23
expected_value "adapter gpio tdi (output): num 23, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio tdi]
bcm2835gpio_tdo_num 24
expected_value "adapter gpio tdo (input): num 24, chip 0, active-high, pull-none, init-state input" [eval adapter gpio tdo]
bcm2835gpio_swd_nums 25 26
expected_value "adapter gpio swclk (output): num 25, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swclk]
expected_value "adapter gpio swdio (bidirectional): num 26, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swdio]
bcm2835gpio_swclk_num 27
expected_value "adapter gpio swclk (output): num 27, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swclk]
bcm2835gpio_swdio_num 28
expected_value "adapter gpio swdio (bidirectional): num 28, chip 0, active-high, push-pull, pull-none, init-state inactive" [eval adapter gpio swdio]
puts "SUCCESS"