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peripheralman.c: Added PWM

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Signed-off-by: Sanrio Alvares <sanrio.alvares@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Sanrio Alvares
2017-03-20 09:00:29 -07:00
committed by Noel Eck
parent 567a92fde5
commit beaba463f7
3 changed files with 109 additions and 2 deletions
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89
src/peripheralman/peripheralman.c
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@@ -38,6 +38,77 @@ char **spi_busses = NULL;
int spi_busses_count = 0;
char **uart_devices = NULL;
int uart_busses_count = 0;
char **pwm_devices = NULL;
int pwm_dev_count = 0;
static mraa_pwm_context
mraa_pman_pwm_init_replace(int pin)
{
mraa_pwm_context dev;
if (APeripheralManagerClient_openPwm(client, pwm_devices[pin], &dev->bpwm) != 0) {
APwmDevice_delete(dev->bpwm);
return NULL;
}
return dev;
}
static mraa_result_t
mraa_pman_pwm_period_replace(mraa_pwm_context dev, int period)
{
if (!dev) {
syslog(LOG_ERR, "pwm: stop: context is NULL");
return 0;
}
if (APwm_setFrequencyHz(dev->bpwm, period) != 0) {
return 0;
}
return MRAA_SUCCESS;
}
static mraa_result_t
mraa_pman_pwm_duty_cycle_replace(mraa_pwm_context dev, int duty_cycle)
{
if (!dev) {
syslog(LOG_ERR, "pwm: stop: context is NULL");
return 0;
}
if (APwm_setDutyCycle(dev->bpwm, duty_cycle) != 0) {
return 0;
}
return MRAA_SUCCESS;
}
static mraa_result_t
mraa_pman_pwm_enable_replace(mraa_pwm_context dev, int enable)
{
if (!dev) {
syslog(LOG_ERR, "pwm: stop: context is NULL");
return 0;
}
if (APwm_setEnabled(dev->bpwm, enable) != 0) {
return 0;
}
return MRAA_SUCCESS;
}
static float
mraa_pman_pwm_read_replace(mraa_pwm_context dev)
{
return -MRAA_ERROR_FEATURE_NOT_SUPPORTED;
}
static mraa_result_t
mraa_pman_pwm_write_replace(mraa_pwm_context dev, fload duty)
{
return -MRAA_ERROR_FEATURE_NOT_SUPPORTED;
}
static mraa_result_t
mraa_pman_uart_init_raw_replace(mraa_uart_context dev, const char* path)
@@ -676,6 +747,7 @@ mraa_peripheralman_plat_init()
i2c_busses = APeripheralManagerClient_listI2cBuses(client, &i2c_busses_count);
spi_busses = APeripheralManagerClient_listSpiBuses(client, &spi_busses_count);
uart_devices = APeripheralManagerClient_listUartDevices(client, &uart_busses_count);
pwm_devices = APeripheralManagerClient_listPwmDevices(client, &pwm_dev_count);
b->platform_name = "peripheralmanager";
// query this from peripheral manager?
@@ -690,9 +762,14 @@ mraa_peripheralman_plat_init()
b->i2c_bus_count = i2c_busses_count;
b->spi_bus_count = spi_busses_count;
b->uart_dev_count = uart_busses_count;
b->pwm_dev_count = pwm_dev_count;
b->pwm_default_period = 5000;
b->pwm_max_period = 218453;
b->pwm_min_period = 1;
b->def_i2c_bus = 0;
b->def_spi_bus = 0;
b->def_uart_dev = 0;
b->def_pwm_dev = 0;
b->pins = (mraa_pininfo_t*) calloc(b->phy_pin_count, sizeof(mraa_pininfo_t));
if (b->pins == NULL) {
@@ -727,6 +804,11 @@ mraa_peripheralman_plat_init()
b->spi_bus[i].cs = -1;
}
//Updating PWM structure
for (i = 0; i < pwm_dev_count; i++) {
b->pwm_dev[i].index = i;
}
b->adv_func = (mraa_adv_func_t*) calloc(1, sizeof(mraa_adv_func_t));
if (b->adv_func == NULL) {
free(b->pins);
@@ -780,6 +862,12 @@ mraa_peripheralman_plat_init()
b->adv_func->uart_write_replace = &mraa_pman_uart_write_replace;
b->adv_func->uart_read_replace = &mraa_pman_uart_read_replace;
b->adv_func->pwm_init_replace = &mraa_pman_pwm_init_replace;
b->adv_func->pwm_period_replace = &mraa_pman_pwm_period_replace;
b->adv_func->pwm_duty_cycle_replace = &mraa_pman_pwm_duty_cycle_replace;
b->adv_func->pwm_enable_replace = &mraa_pman_pwm_enable_replace;
b->adv_func->pwm_read_replace = &mraa_pman_pwm_read_replace;
b->adv_func->pwm_write_replace = &mraa_pman_pwm_write_replace;
return b;
}
@@ -809,6 +897,7 @@ free_resources(char ***resources, int count)
void
pman_mraa_deinit()
{
free_resources(&pwm_devices, pwm_dev_count);
free_resources(&uart_devices, uart_busses_count);
free_resources(&spi_busses, spi_busses_count);
free_resources(&i2c_busses, i2c_busses_count);