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pwmout - NANO100 - add read methods for period and pulsewidth

pull/13492/head
talorion 2020-08-25 23:44:29 +02:00 committed by Gregor Mayramhof
parent 05128898a5
commit 20dce73257
1 changed files with 29 additions and 20 deletions
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49
targets/TARGET_NUVOTON/TARGET_NANO100/pwmout_api.c
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@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pwmout_api.h"
#if DEVICE_PWMOUT
@ -52,18 +52,18 @@ static const struct nu_modinit_s pwm_modinit_tab[] = {
{PWM_0_1, PWM0_CH01_MODULE, CLK_CLKSEL1_PWM0_CH01_S_HCLK, 0, PWM0_RST, PWM0_IRQn, &pwm0_01_var},
{PWM_0_2, PWM0_CH23_MODULE, CLK_CLKSEL1_PWM0_CH23_S_HCLK, 0, PWM0_RST, PWM0_IRQn, &pwm0_23_var},
{PWM_0_3, PWM0_CH23_MODULE, CLK_CLKSEL1_PWM0_CH23_S_HCLK, 0, PWM0_RST, PWM0_IRQn, &pwm0_23_var},
{PWM_1_0, PWM1_CH01_MODULE, CLK_CLKSEL2_PWM1_CH01_S_HCLK, 0, PWM1_RST, PWM1_IRQn, &pwm1_01_var},
{PWM_1_1, PWM1_CH01_MODULE, CLK_CLKSEL2_PWM1_CH01_S_HCLK, 0, PWM1_RST, PWM1_IRQn, &pwm1_01_var},
{PWM_1_2, PWM1_CH23_MODULE, CLK_CLKSEL2_PWM1_CH23_S_HCLK, 0, PWM1_RST, PWM1_IRQn, &pwm1_23_var},
{PWM_1_3, PWM1_CH23_MODULE, CLK_CLKSEL2_PWM1_CH23_S_HCLK, 0, PWM1_RST, PWM1_IRQn, &pwm1_23_var},
{NC, 0, 0, 0, 0, (IRQn_Type) 0, NULL}
};
static void pwmout_config(pwmout_t* obj);
static void pwmout_config(pwmout_t *obj);
void pwmout_init(pwmout_t* obj, PinName pin)
void pwmout_init(pwmout_t *obj, PinName pin)
{
obj->pwm = (PWMName) pinmap_peripheral(pin, PinMap_PWM);
MBED_ASSERT((int) obj->pwm != NC);
@ -108,22 +108,22 @@ void pwmout_init(pwmout_t* obj, PinName pin)
}
}
void pwmout_free(pwmout_t* obj)
void pwmout_free(pwmout_t *obj)
{
PWM_T *pwm_base = (PWM_T *) NU_MODBASE(obj->pwm);
uint32_t chn = NU_MODSUBINDEX(obj->pwm);
PWM_ForceStop(pwm_base, 1 << chn);
const struct nu_modinit_s *modinit = get_modinit(obj->pwm, pwm_modinit_tab);
MBED_ASSERT(modinit != NULL);
MBED_ASSERT((PWMName) modinit->modname == obj->pwm);
((struct nu_pwm_var *) modinit->var)->en_msk &= ~(1 << chn);
if ((((struct nu_pwm_var *) modinit->var)->en_msk & 0xF) == 0) {
CLK_DisableModuleClock(modinit->clkidx);
}
if (((struct nu_pwm_var *) modinit->var)->en_msk == 0) {
// Mark this module to be deinited.
int i = modinit - pwm_modinit_tab;
@ -135,29 +135,29 @@ void pwmout_free(pwmout_t* obj)
obj->pin = NC;
}
void pwmout_write(pwmout_t* obj, float value)
void pwmout_write(pwmout_t *obj, float value)
{
obj->pulsewidth_us = NU_CLAMP((uint32_t) (value * obj->period_us), 0, obj->period_us);
obj->pulsewidth_us = NU_CLAMP((uint32_t)(value * obj->period_us), 0, obj->period_us);
pwmout_config(obj);
}
float pwmout_read(pwmout_t* obj)
float pwmout_read(pwmout_t *obj)
{
return NU_CLAMP((((float) obj->pulsewidth_us) / obj->period_us), 0.0f, 1.0f);
}
void pwmout_period(pwmout_t* obj, float seconds)
void pwmout_period(pwmout_t *obj, float seconds)
{
pwmout_period_us(obj, seconds * 1000000.0f);
}
void pwmout_period_ms(pwmout_t* obj, int ms)
void pwmout_period_ms(pwmout_t *obj, int ms)
{
pwmout_period_us(obj, ms * 1000);
}
// Set the PWM period, keeping the duty cycle the same.
void pwmout_period_us(pwmout_t* obj, int us)
void pwmout_period_us(pwmout_t *obj, int us)
{
uint32_t period_us_old = obj->period_us;
uint32_t pulsewidth_us_old = obj->pulsewidth_us;
@ -166,23 +166,32 @@ void pwmout_period_us(pwmout_t* obj, int us)
pwmout_config(obj);
}
void pwmout_pulsewidth(pwmout_t* obj, float seconds)
int pwmout_read_period_us(pwmout_t *obj)
{
return obj->period_us;
}
void pwmout_pulsewidth(pwmout_t *obj, float seconds)
{
pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
}
void pwmout_pulsewidth_ms(pwmout_t* obj, int ms)
void pwmout_pulsewidth_ms(pwmout_t *obj, int ms)
{
pwmout_pulsewidth_us(obj, ms * 1000);
}
void pwmout_pulsewidth_us(pwmout_t* obj, int us)
void pwmout_pulsewidth_us(pwmout_t *obj, int us)
{
obj->pulsewidth_us = NU_CLAMP(us, 0, obj->period_us);
pwmout_config(obj);
}
static void pwmout_config(pwmout_t* obj)
int pwmout_read_pulsewidth_us(pwmout_t *obj {
return obj->pulsewidth_us;
}
static void pwmout_config(pwmout_t *obj)
{
PWM_T *pwm_base = (PWM_T *) NU_MODBASE(obj->pwm);
uint32_t chn = NU_MODSUBINDEX(obj->pwm);