pwmcmds: Add Kconfig option to allow boards to disable hardware PWM commands

Some boards may not support hardware based PWM.  Update the build so
that those commands do not need to be compiled if they are not
available.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 2 insertions, 70 deletions

diff --git a/src/gpiocmds.c b/src/gpiocmds.c
index 283d3d2e..70608a6f 100644
--- a/src/gpiocmds.c
+++ b/src/gpiocmds.c
@@ -4,12 +4,11 @@
 //
 // This file may be distributed under the terms of the GNU GPLv3 license.
 
-#include <stddef.h> // offsetof
 #include "basecmd.h" // alloc_oid
-#include "board/gpio.h" // struct gpio
+#include "board/gpio.h" // struct gpio_out
 #include "board/irq.h" // irq_save
 #include "command.h" // DECL_COMMAND
-#include "sched.h" // DECL_TASK
+#include "sched.h" // sched_timer
 
 
 /****************************************************************
@@ -87,73 +86,6 @@ DECL_COMMAND(command_set_digital_out, "set_digital_out pin=%u value=%c");
 
 
 /****************************************************************
- * Hardware PWM pins
- ****************************************************************/
-
-struct pwm_out_s {
-    struct timer timer;
-    struct gpio_pwm pin;
-    uint32_t max_duration;
-    uint8_t value, default_value;
-};
-
-static uint8_t
-pwm_event(struct timer *timer)
-{
-    struct pwm_out_s *p = container_of(timer, struct pwm_out_s, timer);
-    gpio_pwm_write(p->pin, p->value);
-    if (p->value == p->default_value || !p->max_duration)
-        return SF_DONE;
-    p->timer.waketime += p->max_duration;
-    p->timer.func = digital_end_event;
-    return SF_RESCHEDULE;
-}
-
-void
-command_config_pwm_out(uint32_t *args)
-{
-    struct pwm_out_s *p = alloc_oid(args[0], command_config_pwm_out, sizeof(*p));
-    p->default_value = args[3];
-    p->pin = gpio_pwm_setup(args[1], args[2], p->default_value);
-    p->max_duration = args[4];
-}
-DECL_COMMAND(command_config_pwm_out,
-             "config_pwm_out oid=%c pin=%u cycle_ticks=%u default_value=%c"
-             " max_duration=%u");
-
-void
-command_schedule_pwm_out(uint32_t *args)
-{
-    struct pwm_out_s *p = lookup_oid(args[0], command_config_pwm_out);
-    sched_del_timer(&p->timer);
-    p->timer.func = pwm_event;
-    p->timer.waketime = args[1];
-    p->value = args[2];
-    sched_timer(&p->timer);
-}
-DECL_COMMAND(command_schedule_pwm_out,
-             "schedule_pwm_out oid=%c clock=%u value=%c");
-
-static void
-pwm_shutdown(void)
-{
-    uint8_t i;
-    struct pwm_out_s *p;
-    foreach_oid(i, p, command_config_pwm_out) {
-        gpio_pwm_write(p->pin, p->default_value);
-    }
-}
-DECL_SHUTDOWN(pwm_shutdown);
-
-void
-command_set_pwm_out(uint32_t *args)
-{
-    gpio_pwm_setup(args[0], args[1], args[2]);
-}
-DECL_COMMAND(command_set_pwm_out, "set_pwm_out pin=%u cycle_ticks=%u value=%c");
-
-
-/****************************************************************
  * Soft PWM output pins
  ****************************************************************/