484 lines
12 KiB
C
484 lines
12 KiB
C
// Platform-dependent functions
|
|
|
|
#include "platform.h"
|
|
#include "c_stdio.h"
|
|
#include "c_string.h"
|
|
#include "c_stdlib.h"
|
|
#include "gpio.h"
|
|
#include "user_interface.h"
|
|
#include "driver/uart.h"
|
|
// Platform specific includes
|
|
|
|
static void pwms_init();
|
|
|
|
int platform_init()
|
|
{
|
|
// Setup PWMs
|
|
pwms_init();
|
|
|
|
cmn_platform_init();
|
|
// All done
|
|
return PLATFORM_OK;
|
|
}
|
|
|
|
// ****************************************************************************
|
|
// KEY_LED functions
|
|
uint8_t platform_key_led( uint8_t level){
|
|
uint8_t temp;
|
|
gpio16_output_set(1); // set to high first, for reading key low level
|
|
gpio16_input_conf();
|
|
temp = gpio16_input_get();
|
|
gpio16_output_conf();
|
|
gpio16_output_set(level);
|
|
return temp;
|
|
}
|
|
|
|
// ****************************************************************************
|
|
// GPIO functions
|
|
#ifdef GPIO_INTERRUPT_ENABLE
|
|
extern void lua_gpio_unref(unsigned pin);
|
|
#endif
|
|
int platform_gpio_mode( unsigned pin, unsigned mode, unsigned pull )
|
|
{
|
|
// NODE_DBG("Function platform_gpio_mode() is called. pin_mux:%d, func:%d\n",pin_mux[pin],pin_func[pin]);
|
|
if (pin >= NUM_GPIO)
|
|
return -1;
|
|
if(pin == 0){
|
|
if(mode==PLATFORM_GPIO_INPUT)
|
|
gpio16_input_conf();
|
|
else
|
|
gpio16_output_conf();
|
|
return 1;
|
|
}
|
|
|
|
platform_pwm_close(pin); // closed from pwm module, if it is used in pwm
|
|
|
|
switch(pull){
|
|
case PLATFORM_GPIO_PULLUP:
|
|
PIN_PULLDWN_DIS(pin_mux[pin]);
|
|
PIN_PULLUP_EN(pin_mux[pin]);
|
|
break;
|
|
case PLATFORM_GPIO_PULLDOWN:
|
|
PIN_PULLUP_DIS(pin_mux[pin]);
|
|
PIN_PULLDWN_EN(pin_mux[pin]);
|
|
break;
|
|
case PLATFORM_GPIO_FLOAT:
|
|
PIN_PULLUP_DIS(pin_mux[pin]);
|
|
PIN_PULLDWN_DIS(pin_mux[pin]);
|
|
break;
|
|
default:
|
|
PIN_PULLUP_DIS(pin_mux[pin]);
|
|
PIN_PULLDWN_DIS(pin_mux[pin]);
|
|
break;
|
|
}
|
|
|
|
switch(mode){
|
|
case PLATFORM_GPIO_INPUT:
|
|
#ifdef GPIO_INTERRUPT_ENABLE
|
|
lua_gpio_unref(pin); // unref the lua ref call back.
|
|
#endif
|
|
GPIO_DIS_OUTPUT(pin_num[pin]);
|
|
case PLATFORM_GPIO_OUTPUT:
|
|
ETS_GPIO_INTR_DISABLE();
|
|
#ifdef GPIO_INTERRUPT_ENABLE
|
|
pin_int_type[pin] = GPIO_PIN_INTR_DISABLE;
|
|
#endif
|
|
PIN_FUNC_SELECT(pin_mux[pin], pin_func[pin]);
|
|
//disable interrupt
|
|
gpio_pin_intr_state_set(GPIO_ID_PIN(pin_num[pin]), GPIO_PIN_INTR_DISABLE);
|
|
//clear interrupt status
|
|
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, BIT(pin_num[pin]));
|
|
GPIO_REG_WRITE(GPIO_PIN_ADDR(GPIO_ID_PIN(pin_num[pin])), GPIO_REG_READ(GPIO_PIN_ADDR(GPIO_ID_PIN(pin_num[pin]))) & (~ GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_ENABLE))); //disable open drain;
|
|
ETS_GPIO_INTR_ENABLE();
|
|
break;
|
|
#ifdef GPIO_INTERRUPT_ENABLE
|
|
case PLATFORM_GPIO_INT:
|
|
ETS_GPIO_INTR_DISABLE();
|
|
PIN_FUNC_SELECT(pin_mux[pin], pin_func[pin]);
|
|
GPIO_DIS_OUTPUT(pin_num[pin]);
|
|
gpio_register_set(GPIO_PIN_ADDR(GPIO_ID_PIN(pin_num[pin])), GPIO_PIN_INT_TYPE_SET(GPIO_PIN_INTR_DISABLE)
|
|
| GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_DISABLE)
|
|
| GPIO_PIN_SOURCE_SET(GPIO_AS_PIN_SOURCE));
|
|
ETS_GPIO_INTR_ENABLE();
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int platform_gpio_write( unsigned pin, unsigned level )
|
|
{
|
|
// NODE_DBG("Function platform_gpio_write() is called. pin:%d, level:%d\n",GPIO_ID_PIN(pin_num[pin]),level);
|
|
if (pin >= NUM_GPIO)
|
|
return -1;
|
|
if(pin == 0){
|
|
gpio16_output_conf();
|
|
gpio16_output_set(level);
|
|
return 1;
|
|
}
|
|
|
|
GPIO_OUTPUT_SET(GPIO_ID_PIN(pin_num[pin]), level);
|
|
}
|
|
|
|
int platform_gpio_read( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_gpio_read() is called. pin:%d\n",GPIO_ID_PIN(pin_num[pin]));
|
|
if (pin >= NUM_GPIO)
|
|
return -1;
|
|
|
|
if(pin == 0){
|
|
gpio16_input_conf();
|
|
return 0x1 & gpio16_input_get();
|
|
}
|
|
|
|
GPIO_DIS_OUTPUT(pin_num[pin]);
|
|
return 0x1 & GPIO_INPUT_GET(GPIO_ID_PIN(pin_num[pin]));
|
|
}
|
|
|
|
#ifdef GPIO_INTERRUPT_ENABLE
|
|
static void platform_gpio_intr_dispatcher( platform_gpio_intr_handler_fn_t cb){
|
|
uint8 i, level;
|
|
uint32 gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
|
|
for (i = 0; i < GPIO_PIN_NUM; i++) {
|
|
if (pin_int_type[i] && (gpio_status & BIT(pin_num[i])) ) {
|
|
//disable interrupt
|
|
gpio_pin_intr_state_set(GPIO_ID_PIN(pin_num[i]), GPIO_PIN_INTR_DISABLE);
|
|
//clear interrupt status
|
|
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, gpio_status & BIT(pin_num[i]));
|
|
level = 0x1 & GPIO_INPUT_GET(GPIO_ID_PIN(pin_num[i]));
|
|
if(cb){
|
|
cb(i, level);
|
|
}
|
|
gpio_pin_intr_state_set(GPIO_ID_PIN(pin_num[i]), pin_int_type[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void platform_gpio_init( platform_gpio_intr_handler_fn_t cb )
|
|
{
|
|
ETS_GPIO_INTR_ATTACH(platform_gpio_intr_dispatcher, cb);
|
|
}
|
|
|
|
int platform_gpio_intr_init( unsigned pin, GPIO_INT_TYPE type )
|
|
{
|
|
if (pin >= NUM_GPIO)
|
|
return -1;
|
|
ETS_GPIO_INTR_DISABLE();
|
|
//clear interrupt status
|
|
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, BIT(pin_num[pin]));
|
|
pin_int_type[pin] = type;
|
|
//enable interrupt
|
|
gpio_pin_intr_state_set(GPIO_ID_PIN(pin_num[pin]), type);
|
|
ETS_GPIO_INTR_ENABLE();
|
|
}
|
|
#endif
|
|
|
|
// ****************************************************************************
|
|
// UART
|
|
// TODO: Support timeouts.
|
|
|
|
// UartDev is defined and initialized in rom code.
|
|
extern UartDevice UartDev;
|
|
uint32_t platform_uart_setup( unsigned id, uint32_t baud, int databits, int parity, int stopbits )
|
|
{
|
|
switch( baud )
|
|
{
|
|
case BIT_RATE_9600:
|
|
case BIT_RATE_19200:
|
|
case BIT_RATE_38400:
|
|
case BIT_RATE_57600:
|
|
case BIT_RATE_74880:
|
|
case BIT_RATE_115200:
|
|
case BIT_RATE_230400:
|
|
case BIT_RATE_460800:
|
|
case BIT_RATE_921600:
|
|
UartDev.baut_rate = baud;
|
|
break;
|
|
default:
|
|
UartDev.baut_rate = BIT_RATE_9600;
|
|
break;
|
|
}
|
|
|
|
switch( databits )
|
|
{
|
|
case 5:
|
|
UartDev.data_bits = FIVE_BITS;
|
|
break;
|
|
case 6:
|
|
UartDev.data_bits = SIX_BITS;
|
|
break;
|
|
case 7:
|
|
UartDev.data_bits = SEVEN_BITS;
|
|
break;
|
|
case 8:
|
|
UartDev.data_bits = EIGHT_BITS;
|
|
break;
|
|
default:
|
|
UartDev.data_bits = EIGHT_BITS;
|
|
break;
|
|
}
|
|
|
|
switch (stopbits)
|
|
{
|
|
case PLATFORM_UART_STOPBITS_1:
|
|
UartDev.stop_bits = ONE_STOP_BIT;
|
|
break;
|
|
case PLATFORM_UART_STOPBITS_2:
|
|
UartDev.stop_bits = TWO_STOP_BIT;
|
|
break;
|
|
default:
|
|
UartDev.stop_bits = ONE_STOP_BIT;
|
|
break;
|
|
}
|
|
|
|
switch (parity)
|
|
{
|
|
case PLATFORM_UART_PARITY_EVEN:
|
|
UartDev.parity = EVEN_BITS;
|
|
break;
|
|
case PLATFORM_UART_PARITY_ODD:
|
|
UartDev.parity = ODD_BITS;
|
|
break;
|
|
default:
|
|
UartDev.parity = NONE_BITS;
|
|
break;
|
|
}
|
|
|
|
uart_setup(id);
|
|
|
|
return baud;
|
|
}
|
|
|
|
// Send: version with and without mux
|
|
void platform_uart_send( unsigned id, u8 data )
|
|
{
|
|
uart_tx_one_char(id, data);
|
|
}
|
|
|
|
// ****************************************************************************
|
|
// PWMs
|
|
|
|
static uint16_t pwms_duty[NUM_PWM] = {0};
|
|
|
|
static void pwms_init()
|
|
{
|
|
int i;
|
|
for(i=0;i<NUM_PWM;i++){
|
|
pwms_duty[i] = DUTY(0);
|
|
}
|
|
pwm_init(500, NULL);
|
|
// NODE_DBG("Function pwms_init() is called.\n");
|
|
}
|
|
|
|
// Return the PWM clock
|
|
// NOTE: Can't find a function to query for the period set for the timer,
|
|
// therefore using the struct.
|
|
// This may require adjustment if driver libraries are updated.
|
|
uint32_t platform_pwm_get_clock( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_get_clock() is called.\n");
|
|
if( pin >= NUM_PWM)
|
|
return 0;
|
|
if(!pwm_exist(pin))
|
|
return 0;
|
|
|
|
return (uint32_t)pwm_get_freq(pin);
|
|
}
|
|
|
|
// Set the PWM clock
|
|
uint32_t platform_pwm_set_clock( unsigned pin, uint32_t clock )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_set_clock() is called.\n");
|
|
if( pin >= NUM_PWM)
|
|
return 0;
|
|
if(!pwm_exist(pin))
|
|
return 0;
|
|
|
|
pwm_set_freq((uint16_t)clock, pin);
|
|
pwm_start();
|
|
return (uint32_t)pwm_get_freq( pin );
|
|
}
|
|
|
|
uint32_t platform_pwm_get_duty( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_get_duty() is called.\n");
|
|
if( pin < NUM_PWM){
|
|
if(!pwm_exist(pin))
|
|
return 0;
|
|
// return NORMAL_DUTY(pwm_get_duty(pin));
|
|
return pwms_duty[pin];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Set the PWM duty
|
|
uint32_t platform_pwm_set_duty( unsigned pin, uint32_t duty )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_set_duty() is called.\n");
|
|
if ( pin < NUM_PWM)
|
|
{
|
|
if(!pwm_exist(pin))
|
|
return 0;
|
|
pwm_set_duty(DUTY(duty), pin);
|
|
} else {
|
|
return 0;
|
|
}
|
|
pwm_start();
|
|
pwms_duty[pin] = NORMAL_DUTY(pwm_get_duty(pin));
|
|
return pwms_duty[pin];
|
|
}
|
|
|
|
uint32_t platform_pwm_setup( unsigned pin, uint32_t frequency, unsigned duty )
|
|
{
|
|
uint32_t clock;
|
|
if ( pin < NUM_PWM)
|
|
{
|
|
platform_gpio_mode(pin, PLATFORM_GPIO_OUTPUT, PLATFORM_GPIO_FLOAT); // disable gpio interrupt first
|
|
if(!pwm_add(pin))
|
|
return 0;
|
|
// pwm_set_duty(DUTY(duty), pin);
|
|
pwm_set_duty(0, pin);
|
|
pwms_duty[pin] = duty;
|
|
pwm_set_freq((uint16_t)frequency, pin);
|
|
} else {
|
|
return 0;
|
|
}
|
|
clock = platform_pwm_get_clock( pin );
|
|
pwm_start();
|
|
return clock;
|
|
}
|
|
|
|
void platform_pwm_close( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_stop() is called.\n");
|
|
if ( pin < NUM_PWM)
|
|
{
|
|
pwm_delete(pin);
|
|
pwm_start();
|
|
}
|
|
}
|
|
|
|
void platform_pwm_start( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_start() is called.\n");
|
|
if ( pin < NUM_PWM)
|
|
{
|
|
if(!pwm_exist(pin))
|
|
return;
|
|
pwm_set_duty(DUTY(pwms_duty[pin]), pin);
|
|
pwm_start();
|
|
}
|
|
}
|
|
|
|
void platform_pwm_stop( unsigned pin )
|
|
{
|
|
// NODE_DBG("Function platform_pwm_stop() is called.\n");
|
|
if ( pin < NUM_PWM)
|
|
{
|
|
if(!pwm_exist(pin))
|
|
return;
|
|
pwm_set_duty(0, pin);
|
|
pwm_start();
|
|
}
|
|
}
|
|
|
|
// *****************************************************************************
|
|
// I2C platform interface
|
|
|
|
uint32_t platform_i2c_setup( unsigned id, uint8_t sda, uint8_t scl, uint32_t speed ){
|
|
if (sda >= NUM_GPIO || scl >= NUM_GPIO)
|
|
return 0;
|
|
|
|
// platform_pwm_close(sda);
|
|
// platform_pwm_close(scl);
|
|
|
|
// disable gpio interrupt first
|
|
platform_gpio_mode(sda, PLATFORM_GPIO_INPUT, PLATFORM_GPIO_PULLUP); // inside this func call platform_pwm_close
|
|
platform_gpio_mode(scl, PLATFORM_GPIO_INPUT, PLATFORM_GPIO_PULLUP); // disable gpio interrupt first
|
|
|
|
i2c_master_gpio_init(sda, scl);
|
|
return PLATFORM_I2C_SPEED_SLOW;
|
|
}
|
|
|
|
void platform_i2c_send_start( unsigned id ){
|
|
i2c_master_start();
|
|
}
|
|
|
|
void platform_i2c_send_stop( unsigned id ){
|
|
i2c_master_stop();
|
|
}
|
|
|
|
int platform_i2c_send_address( unsigned id, uint16_t address, int direction ){
|
|
// Convert enum codes to R/w bit value.
|
|
// If TX == 0 and RX == 1, this test will be removed by the compiler
|
|
if ( ! ( PLATFORM_I2C_DIRECTION_TRANSMITTER == 0 &&
|
|
PLATFORM_I2C_DIRECTION_RECEIVER == 1 ) ) {
|
|
direction = ( direction == PLATFORM_I2C_DIRECTION_TRANSMITTER ) ? 0 : 1;
|
|
}
|
|
|
|
i2c_master_writeByte( (uint8_t) ((address << 1) | direction ));
|
|
// Low-level returns nack (0=acked); we return ack (1=acked).
|
|
return ! i2c_master_getAck();
|
|
}
|
|
|
|
int platform_i2c_send_byte( unsigned id, uint8_t data ){
|
|
i2c_master_writeByte(data);
|
|
// Low-level returns nack (0=acked); we return ack (1=acked).
|
|
return ! i2c_master_getAck();
|
|
}
|
|
|
|
int platform_i2c_recv_byte( unsigned id, int ack ){
|
|
uint8_t r = i2c_master_readByte();
|
|
i2c_master_setAck( !ack );
|
|
return r;
|
|
}
|
|
|
|
// ****************************************************************************
|
|
// Flash access functions
|
|
|
|
uint32_t platform_s_flash_write( const void *from, uint32_t toaddr, uint32_t size )
|
|
{
|
|
toaddr -= INTERNAL_FLASH_START_ADDRESS;
|
|
SpiFlashOpResult r;
|
|
const uint32_t blkmask = INTERNAL_FLASH_WRITE_UNIT_SIZE - 1;
|
|
uint32_t *apbuf = NULL;
|
|
if( ((uint32_t)from) & blkmask ){
|
|
apbuf = (uint32_t *)c_malloc(size);
|
|
if(!apbuf)
|
|
return 0;
|
|
c_memcpy(apbuf, from, size);
|
|
}
|
|
WRITE_PERI_REG(0x60000914, 0x73);
|
|
r = flash_write(toaddr, apbuf?(uint32 *)apbuf:(uint32 *)from, size);
|
|
if(apbuf)
|
|
c_free(apbuf);
|
|
if(SPI_FLASH_RESULT_OK == r)
|
|
return size;
|
|
else{
|
|
NODE_ERR( "ERROR in flash_write: r=%d at %08X\n", ( int )r, ( unsigned )toaddr+INTERNAL_FLASH_START_ADDRESS );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
uint32_t platform_s_flash_read( void *to, uint32_t fromaddr, uint32_t size )
|
|
{
|
|
fromaddr -= INTERNAL_FLASH_START_ADDRESS;
|
|
SpiFlashOpResult r;
|
|
WRITE_PERI_REG(0x60000914, 0x73);
|
|
r = flash_read(fromaddr, (uint32 *)to, size);
|
|
if(SPI_FLASH_RESULT_OK == r)
|
|
return size;
|
|
else{
|
|
NODE_ERR( "ERROR in flash_read: r=%d at %08X\n", ( int )r, ( unsigned )fromaddr+INTERNAL_FLASH_START_ADDRESS );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int platform_flash_erase_sector( uint32_t sector_id )
|
|
{
|
|
WRITE_PERI_REG(0x60000914, 0x73);
|
|
return flash_erase( sector_id ) == SPI_FLASH_RESULT_OK ? PLATFORM_OK : PLATFORM_ERR;
|
|
}
|