drivers/sysfsgpio: fix usage messages

[openocd.git] / src / jtag / drivers / sysfsgpio.c

diff --git a/src/jtag/drivers/sysfsgpio.c b/src/jtag/drivers/sysfsgpio.c
index 5a4651df194b85f9a3e38ba714422b992678085a..90e93f5a664b4cf5d4a284ca0c9d021448269b60 100644 (file)
--- a/src/jtag/drivers/sysfsgpio.c
+++ b/src/jtag/drivers/sysfsgpio.c
@@ -58,11 +58,11 @@
 /*
  * Helper func to determine if gpio number valid
  *
- * Assume here that there will be less than 1000 gpios on a system
+ * Assume here that there will be less than 10000 gpios on a system
  */
 static int is_gpio_valid(int gpio)
 {
-       return gpio >= 0 && gpio < 1000;
+       return gpio >= 0 && gpio < 10000;
 }
 
 /*
@@ -89,7 +89,7 @@ static int open_write_close(const char *name, const char *valstr)
  */
 static void unexport_sysfs_gpio(int gpio)
 {
-       char gpiostr[4];
+       char gpiostr[5];
 
        if (!is_gpio_valid(gpio))
                return;
@@ -113,7 +113,7 @@ static void unexport_sysfs_gpio(int gpio)
 static int setup_sysfs_gpio(int gpio, int is_output, int init_high)
 {
        char buf[40];
-       char gpiostr[4];
+       char gpiostr[5];
        int ret;
 
        if (!is_gpio_valid(gpio))
@@ -457,62 +457,70 @@ static const struct command_registration sysfsgpio_command_handlers[] = {
                .handler = &sysfsgpio_handle_jtag_gpionums,
                .mode = COMMAND_CONFIG,
                .help = "gpio numbers for tck, tms, tdi, tdo. (in that order)",
-               .usage = "(tck tms tdi tdo)* ",
+               .usage = "[tck tms tdi tdo]",
        },
        {
                .name = "sysfsgpio_tck_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_tck,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for tck.",
+               .usage = "[tck]",
        },
        {
                .name = "sysfsgpio_tms_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_tms,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for tms.",
+               .usage = "[tms]",
        },
        {
                .name = "sysfsgpio_tdo_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_tdo,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for tdo.",
+               .usage = "[tdo]",
        },
        {
                .name = "sysfsgpio_tdi_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_tdi,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for tdi.",
+               .usage = "[tdi]",
        },
        {
                .name = "sysfsgpio_srst_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_srst,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for srst.",
+               .usage = "[srst]",
        },
        {
                .name = "sysfsgpio_trst_num",
                .handler = &sysfsgpio_handle_jtag_gpionum_trst,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for trst.",
+               .usage = "[trst]",
        },
        {
                .name = "sysfsgpio_swd_nums",
                .handler = &sysfsgpio_handle_swd_gpionums,
                .mode = COMMAND_CONFIG,
                .help = "gpio numbers for swclk, swdio. (in that order)",
-               .usage = "(swclk swdio)* ",
+               .usage = "[swclk swdio]",
        },
        {
                .name = "sysfsgpio_swclk_num",
                .handler = &sysfsgpio_handle_swd_gpionum_swclk,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for swclk.",
+               .usage = "[swclk]",
        },
        {
                .name = "sysfsgpio_swdio_num",
                .handler = &sysfsgpio_handle_swd_gpionum_swdio,
                .mode = COMMAND_CONFIG,
                .help = "gpio number for swdio.",
+               .usage = "[swdio]",
        },
        COMMAND_REGISTRATION_DONE
 };
@@ -561,6 +569,8 @@ static void cleanup_all_fds(void)
        cleanup_fd(tdo_fd, tdo_gpio);
        cleanup_fd(trst_fd, trst_gpio);
        cleanup_fd(srst_fd, srst_gpio);
+       cleanup_fd(swclk_fd, swclk_gpio);
+       cleanup_fd(swdio_fd, swdio_gpio);
 }
 
 static bool sysfsgpio_jtag_mode_possible(void)