// Lua: stop( id )
static int ICACHE_FLASH_ATTR lpwm_stop( lua_State* L )
{
unsigned id;
id = luaL_checkinteger( L, 1 );
MOD_CHECK_ID( pwm, id );
platform_pwm_stop( id );
return 0;
}
static int lpwm_stop(lua_State* L) {
int id = luaL_checkinteger(L, 1);
if (!platform_pwm_exists(L, id)) {
return luaL_error(L, "pwm%d does not exist", id);
}
if (!pwm[id - 1].configured) {
return luaL_error(L, "pwm%d is not setup", id);
}
platform_pwm_stop(L, id);
pwm[id - 1].started = 0;
return 0;
}
OSStatus MicoPwmStop( mico_pwm_t pwm )
{
if ( pwm >= MICO_PWM_NONE )
return kUnsupportedErr;
return (OSStatus) platform_pwm_stop( &platform_pwm_peripherals[pwm] );
}
static int lpwm_setup(lua_State* L) {
double duty;
int res, val, khz;
res = 0;
khz = 0;
duty = 0;
val = 0;
int id = luaL_checkinteger(L, 1);
int mode = luaL_checkinteger(L, 2);
if (!platform_pwm_exists(L, id)) {
return luaL_error(L, "pwm%d does not exist", id);
}
switch (mode) {
case 0:
khz = luaL_checkinteger(L, 3);
duty = luaL_checknumber(L, 4);
break;
case 1:
res = luaL_checkinteger(L, 3);
val = luaL_checknumber(L, 4);
break;
default:
return luaL_error(L, "invalid setup mode");
}
// Check for setup needed
if (pwm[id - 1].configured && (pwm[id - 1].mode == mode) && (pwm[id - 1].res == res) && (pwm[id - 1].khz == khz)) {
// No changes
lua_pushinteger(L, platform_pwm_freq(L, id));
return 1;
}
// Setup is needed, if configured, stop first
if (pwm[id - 1].configured) {
platform_pwm_stop(L, id);
}
// Configure
switch (mode) {
case 0:
lua_pushinteger(L, platform_pwm_setup_freq(L, id, khz, duty));
break;
case 1:
lua_pushinteger(L, platform_pwm_setup_res(L, id, res, val));
break;
default:
return luaL_error(L, "invalid setup mode");
}
pwm[id - 1].mode = mode;
pwm[id - 1].res = res;
pwm[id - 1].khz = khz;
pwm[id - 1].configured = 1;
return 1;
}
