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jtag/adapter: retype adapter_gpio_config.{gpio,chip}_num 

Previously, the gpio_num and chip_num members of adapter_gpio_config
were typed as 'int' and a sentinel value of -1 was used to denote
unconfigured values.

Now, these members are typed as 'unsigned int' to better reflect their
expected value range.

The sentinel value now maps to UINT_MAX as all adapters either define an
upper bound for these members or, in the case of bcm2835gpio, only
operate on a specific chip, in which case the value doesn't matter.

Format specifiers have been left as %d since, when configured, valid
values are within the positive range of 'int'. This allows unconfigured
values to display as a more readable value of -1 instead of UINT_MAX.

Change-Id: Ieb20e5327b2e2e443a8e43d8689cb29538a5c9c1
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8124
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Vincent Fazio 2024-01-31 09:06:20 -06:00 committed by Tomas Vanek
parent 4593c75f0b
commit 0d3d4c981a
5 changed files with 34 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/jtag/adapter.c
View File

@ -94,8 +94,9 @@ static void adapter_driver_gpios_init(void)
return;
for (int i = 0; i < ADAPTER_GPIO_IDX_NUM; ++i) {
adapter_config.gpios[i].gpio_num = -1;
adapter_config.gpios[i].chip_num = -1;
/* Use ADAPTER_GPIO_NOT_SET as the sentinel 'unset' value. */
adapter_config.gpios[i].gpio_num = ADAPTER_GPIO_NOT_SET;
adapter_config.gpios[i].chip_num = ADAPTER_GPIO_NOT_SET;
if (gpio_map[i].direction == ADAPTER_GPIO_DIRECTION_INPUT)
adapter_config.gpios[i].init_state = ADAPTER_GPIO_INIT_STATE_INPUT;
}
@ -848,6 +849,11 @@ static COMMAND_HELPER(helper_adapter_gpio_print_config, enum adapter_gpio_config
const char *pull = "";
const char *init_state = "";
if (gpio_config->gpio_num == ADAPTER_GPIO_NOT_SET) {
command_print(CMD, "adapter gpio %s: not configured", gpio_map[gpio_idx].name);
return ERROR_OK;
}
switch (gpio_map[gpio_idx].direction) {
case ADAPTER_GPIO_DIRECTION_INPUT:
dir = "input";
@ -900,8 +906,8 @@ static COMMAND_HELPER(helper_adapter_gpio_print_config, enum adapter_gpio_config
}
}
command_print(CMD, "adapter gpio %s (%s): num %d, chip %d, active-%s%s%s%s",
gpio_map[gpio_idx].name, dir, gpio_config->gpio_num, gpio_config->chip_num, active_state,
command_print(CMD, "adapter gpio %s (%s): num %u, chip %d, active-%s%s%s%s",
gpio_map[gpio_idx].name, dir, gpio_config->gpio_num, (int)gpio_config->chip_num, active_state,
drive, pull, init_state);
return ERROR_OK;
@ -942,9 +948,7 @@ COMMAND_HANDLER(adapter_gpio_config_handler)
LOG_DEBUG("Processing %s", CMD_ARGV[i]);
if (isdigit(*CMD_ARGV[i])) {
int gpio_num; /* Use a meaningful output parameter for more helpful error messages */
COMMAND_PARSE_NUMBER(int, CMD_ARGV[i], gpio_num);
gpio_config->gpio_num = gpio_num;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[i], gpio_config->gpio_num);
++i;
continue;
}
@ -955,9 +959,7 @@ COMMAND_HANDLER(adapter_gpio_config_handler)
return ERROR_FAIL;
}
LOG_DEBUG("-chip arg is %s", CMD_ARGV[i + 1]);
int chip_num; /* Use a meaningful output parameter for more helpful error messages */
COMMAND_PARSE_NUMBER(int, CMD_ARGV[i + 1], chip_num);
gpio_config->chip_num = chip_num;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[i + 1], gpio_config->chip_num);
i += 2;
continue;
}

7
src/jtag/adapter.h
View File

@ -10,6 +10,7 @@
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <limits.h>
/** Supported output drive modes for adaptor GPIO */
enum adapter_gpio_drive_mode {
@ -56,8 +57,8 @@ enum adapter_gpio_config_index {
/** Configuration options for a single GPIO */
struct adapter_gpio_config {
int gpio_num;
int chip_num;
unsigned int gpio_num;
unsigned int chip_num;
enum adapter_gpio_drive_mode drive; /* For outputs only */
enum adapter_gpio_init_state init_state;
bool active_low;
@ -121,4 +122,6 @@ const char *adapter_gpio_get_name(enum adapter_gpio_config_index idx);
*/
const struct adapter_gpio_config *adapter_gpio_get_config(void);
#define ADAPTER_GPIO_NOT_SET UINT_MAX
#endif /* OPENOCD_JTAG_ADAPTER_H */

15
src/jtag/drivers/am335xgpio.c
View File

@ -86,9 +86,7 @@ static const struct adapter_gpio_config *adapter_gpio_config;
static bool is_gpio_config_valid(const struct adapter_gpio_config *gpio_config)
{
return gpio_config->chip_num >= 0
&& gpio_config->chip_num < AM335XGPIO_NUM_GPIO_CHIPS
&& gpio_config->gpio_num >= 0
return gpio_config->chip_num < AM335XGPIO_NUM_GPIO_CHIPS
&& gpio_config->gpio_num < AM335XGPIO_NUM_GPIO_PER_CHIP;
}
@ -249,10 +247,13 @@ static int am335xgpio_reset(int trst, int srst)
if (is_gpio_config_valid(&adapter_gpio_config[ADAPTER_GPIO_IDX_TRST]))
set_gpio_value(&adapter_gpio_config[ADAPTER_GPIO_IDX_TRST], trst);
LOG_DEBUG("am335xgpio_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);
LOG_DEBUG("trst %d gpio: %d %d, srst %d gpio: %d %d",
trst,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].chip_num,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].gpio_num,
srst,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].chip_num,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].gpio_num);
return ERROR_OK;
}

16
src/jtag/drivers/bcm2835gpio.c
View File

@ -84,10 +84,7 @@ static inline void bcm2835_delay(void)
static bool is_gpio_config_valid(enum adapter_gpio_config_index idx)
{
/* 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;
return adapter_gpio_config[idx].gpio_num <= 31;
}
static void set_gpio_value(const struct adapter_gpio_config *gpio_config, int value)
@ -243,10 +240,13 @@ static int bcm2835gpio_reset(int trst, int srst)
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);
LOG_DEBUG("trst %d gpio: %d %d, srst %d gpio: %d %d",
trst,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].chip_num,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_TRST].gpio_num,
srst,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].chip_num,
(int)adapter_gpio_config[ADAPTER_GPIO_IDX_SRST].gpio_num);
return ERROR_OK;
}

4
src/jtag/drivers/linuxgpiod.c
View File

@ -37,9 +37,7 @@ static const struct adapter_gpio_config *adapter_gpio_config;
*/
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
return adapter_gpio_config[idx].chip_num < 1000
&& adapter_gpio_config[idx].gpio_num < 10000;
}