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beaglebone.c: Add PWM output configuration

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Signed-off-by: Salah-Eddine Missri <missrisalaheddine@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Salah-Eddine Missri
2015-07-29 14:20:33 +02:00
committed by Brendan Le Foll
parent 49d70cd2a9
commit ba2a7cb776
1 changed files with 82 additions and 18 deletions
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100
src/arm/beaglebone.c
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@@ -377,6 +377,12 @@ mraa_beaglebone()
unsigned int uart3_enabled = 0;
unsigned int uart4_enabled = 0;
unsigned int uart5_enabled = 0;
unsigned int ehrpwm0a_enabled = 0;
unsigned int ehrpwm0b_enabled = 0;
unsigned int ehrpwm1a_enabled = 0;
unsigned int ehrpwm1b_enabled = 0;
unsigned int ehrpwm2a_enabled = 0;
unsigned int ehrpwm2b_enabled = 0;
unsigned int is_rev_c = 0;
size_t len = 0;
char* line = NULL;
@@ -446,6 +452,36 @@ mraa_beaglebone()
else
uart5_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm0"))
ehrpwm0a_enabled = 1;
else
ehrpwm0a_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm1"))
ehrpwm0b_enabled = 1;
else
ehrpwm0b_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm3"))
ehrpwm1a_enabled = 1;
else
ehrpwm1a_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm4"))
ehrpwm1b_enabled = 1;
else
ehrpwm1b_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm5"))
ehrpwm2a_enabled = 1;
else
ehrpwm2a_enabled = 0;
if (mraa_file_exist("/sys/class/pwm/pwm6"))
ehrpwm2b_enabled = 1;
else
ehrpwm2b_enabled = 0;
mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
if (b == NULL)
return NULL;
@@ -570,11 +606,17 @@ mraa_beaglebone()
b->pins[12].gpio.parent_id = 0;
b->pins[12].gpio.mux_total = 0;
strncpy(b->pins[13].name, "GPIO23", MRAA_PIN_NAME_SIZE);
b->pins[13].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
if (ehrpwm2b_enabled == 1) {
strncpy(b->pins[13].name, "EHRPWM2B", MRAA_PIN_NAME_SIZE);
b->pins[13].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
} else {
strncpy(b->pins[13].name, "GPIO23", MRAA_PIN_NAME_SIZE);
b->pins[13].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
}
b->pins[13].gpio.pinmap = 23;
b->pins[13].gpio.parent_id = 0;
b->pins[13].gpio.mux_total = 0;
b->pins[13].pwm.mux_total = 0;
strncpy(b->pins[14].name, "GPIO26", MRAA_PIN_NAME_SIZE);
b->pins[14].capabilites = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
@@ -607,12 +649,17 @@ mraa_beaglebone()
b->pins[18].gpio.parent_id = 0;
b->pins[18].gpio.mux_total = 0;
// TODO PWM_2A
strncpy(b->pins[19].name, "GPIO22", MRAA_PIN_NAME_SIZE);
b->pins[19].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
if (ehrpwm2a_enabled == 1) {
strncpy(b->pins[19].name, "EHRPWM2A", MRAA_PIN_NAME_SIZE);
b->pins[19].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
} else {
strncpy(b->pins[19].name, "GPIO22", MRAA_PIN_NAME_SIZE);
b->pins[19].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
}
b->pins[19].gpio.pinmap = 22;
b->pins[19].gpio.parent_id = 0;
b->pins[19].gpio.mux_total = 0;
b->pins[19].pwm.mux_total = 0;
if (emmc_enabled == 1) {
strncpy(b->pins[20].name, "MMC1_CMD", MRAA_PIN_NAME_SIZE);
@@ -992,26 +1039,36 @@ mraa_beaglebone()
b->pins[59].gpio.mux_total = 0;
b->pins[59].uart.mux_total = 0;
// TODO PWM_1A
strncpy(b->pins[60].name, "GPIO40", MRAA_PIN_NAME_SIZE);
b->pins[60].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
if (ehrpwm1a_enabled == 1) {
strncpy(b->pins[60].name, "EHRPWM1A", MRAA_PIN_NAME_SIZE);
b->pins[60].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
} else {
strncpy(b->pins[60].name, "GPIO50", MRAA_PIN_NAME_SIZE);
b->pins[60].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
}
b->pins[60].gpio.pinmap = 50;
b->pins[60].gpio.parent_id = 0;
b->pins[60].gpio.mux_total = 0;
b->pins[60].pwm.mux_total = 0;
// TODO PWM_TRIP2_IN is this PWM?????
// TODO PWM_TRIP2_IN (not a PWM output, but used for sync cf ref. manual)
strncpy(b->pins[61].name, "GPIO48", MRAA_PIN_NAME_SIZE);
b->pins[61].capabilites = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
b->pins[61].gpio.pinmap = 48;
b->pins[61].gpio.parent_id = 0;
b->pins[61].gpio.mux_total = 0;
// TODO PWM_1B
strncpy(b->pins[62].name, "GPIO51", MRAA_PIN_NAME_SIZE);
b->pins[62].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
if (ehrpwm1b_enabled == 1) {
strncpy(b->pins[62].name, "EHRPWM1B", MRAA_PIN_NAME_SIZE);
b->pins[62].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
} else {
strncpy(b->pins[62].name, "GPIO51", MRAA_PIN_NAME_SIZE);
b->pins[62].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 0, 0, 0, 0 };
}
b->pins[62].gpio.pinmap = 51;
b->pins[62].gpio.parent_id = 0;
b->pins[62].gpio.mux_total = 0;
b->pins[62].pwm.mux_total = 0;
if ((i2c0_enabled == 1) || (spi0_enabled == 1)) {
if (i2c0_enabled == 1) {
@@ -1077,18 +1134,22 @@ mraa_beaglebone()
b->pins[66].gpio.mux_total = 0;
b->pins[66].i2c.mux_total = 0;
if ((spi0_enabled == 1) || uart2_enabled == 1) {
if ((spi0_enabled == 1) || uart2_enabled == 1 || ehrpwm0b_enabled == 1) {
if (uart2_enabled == 1) {
strncpy(b->pins[67].name, "UART2_TX", MRAA_PIN_NAME_SIZE);
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 1 };
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 1 };
}
if (spi0_enabled == 1) {
strncpy(b->pins[67].name, "SPI0D0", MRAA_PIN_NAME_SIZE);
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 };
}
if (ehrpwm0b_enabled == 1) {
strncpy(b->pins[67].name, "EHRPWM0B", MRAA_PIN_NAME_SIZE);
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
}
} else {
strncpy(b->pins[67].name, "GPIO3", MRAA_PIN_NAME_SIZE);
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 1 };
b->pins[67].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 1, 0, 0, 1 };
}
b->pins[67].gpio.pinmap = 3;
b->pins[67].gpio.parent_id = 0;
@@ -1096,8 +1157,7 @@ mraa_beaglebone()
b->pins[67].spi.mux_total = 0;
b->pins[67].uart.mux_total = 0;
if ((spi0_enabled == 1) || uart2_enabled == 1) {
if ((spi0_enabled == 1) || uart2_enabled == 1 || ehrpwm0a_enabled == 1) {
if (uart2_enabled == 1) {
strncpy(b->pins[68].name, "UART2_RX", MRAA_PIN_NAME_SIZE);
b->pins[68].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 1 };
@@ -1106,9 +1166,13 @@ mraa_beaglebone()
strncpy(b->pins[68].name, "SPI0CLK", MRAA_PIN_NAME_SIZE);
b->pins[68].capabilites = (mraa_pincapabilities_t){ 1, 0, 0, 0, 1, 0, 0, 0 };
}
if (ehrpwm0a_enabled == 1) {
strncpy(b->pins[68].name, "EHRPWM0A", MRAA_PIN_NAME_SIZE);
b->pins[68].capabilites = (mraa_pincapabilities_t){ 1, 0, 1, 0, 0, 0, 0, 0 };
}
} else {
strncpy(b->pins[68].name, "GPIO2", MRAA_PIN_NAME_SIZE);
b->pins[68].capabilites = (mraa_pincapabilities_t){ 1, 1, 0, 0, 1, 0, 0, 1 };
b->pins[68].capabilites = (mraa_pincapabilities_t){ 1, 1, 1, 0, 1, 0, 0, 1 };
}
b->pins[68].gpio.pinmap = 2;
b->pins[68].gpio.parent_id = 0;