/*---------------------------------------------------------------------------*/
void
board_init()
{
/* Disable global interrupts */
uint8_t int_disabled = ti_lib_int_master_disable();
power_domains_on();
/* Configure all clock domains to run at full speed */
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_SYSBUS, PRCM_CLOCK_DIV_1);
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_CPU, PRCM_CLOCK_DIV_1);
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_TIMER, PRCM_CLOCK_DIV_1);
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_SERIAL, PRCM_CLOCK_DIV_1);
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_PERIPH, PRCM_CLOCK_DIV_1);
/* Enable GPIO peripheral */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
/* Apply settings and wait for them to take effect */
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Enable GPT0 module - Wait for the clock to be enabled */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_TIMER0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Keys (input pullup) */
ti_lib_rom_ioc_pin_type_gpio_input(BOARD_IOID_KEY_LEFT);
ti_lib_rom_ioc_pin_type_gpio_input(BOARD_IOID_KEY_RIGHT);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_KEY_LEFT, IOC_IOPULL_UP);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_KEY_RIGHT, IOC_IOPULL_UP);
/* I2C controller */
board_i2c_init();
/* Sensor interface */
ti_lib_rom_ioc_pin_type_gpio_input(BOARD_IOID_MPU_INT);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_MPU_INT, IOC_IOPULL_DOWN);
ti_lib_rom_ioc_pin_type_gpio_input(BOARD_IOID_REED_RELAY);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_REED_RELAY, IOC_IOPULL_DOWN);
ti_lib_rom_ioc_pin_type_gpio_output(BOARD_IOID_MPU_POWER);
/* Flash interface */
ti_lib_rom_ioc_pin_type_gpio_output(BOARD_IOID_FLASH_CS);
ti_lib_gpio_pin_write(BOARD_FLASH_CS, 1);
buzzer_init();
lpm_register_module(&sensortag_module);
/* Re-enable interrupt if initially enabled. */
if(!int_disabled) {
ti_lib_int_master_enable();
}
}
/*---------------------------------------------------------------------------*/
void
rf_core_power_down()
{
bool interrupts_disabled = ti_lib_int_master_disable();
ti_lib_int_disable(INT_RF_CPE0);
ti_lib_int_disable(INT_RF_CPE1);
if(rf_core_is_accessible()) {
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIFG) = 0x0;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = 0x0;
/* need to send FS_POWERDOWN or analog components will use power */
fs_powerdown();
}
/* Shut down the RFCORE clock domain in the MCU VD */
ti_lib_prcm_domain_disable(PRCM_DOMAIN_RFCORE);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Turn off RFCORE PD */
ti_lib_prcm_power_domain_off(PRCM_DOMAIN_RFCORE);
while(ti_lib_prcm_power_domain_status(PRCM_DOMAIN_RFCORE)
!= PRCM_DOMAIN_POWER_OFF);
ti_lib_int_pend_clear(INT_RF_CPE0);
ti_lib_int_pend_clear(INT_RF_CPE1);
ti_lib_int_enable(INT_RF_CPE0);
ti_lib_int_enable(INT_RF_CPE1);
if(!interrupts_disabled) {
ti_lib_int_master_enable();
}
}
/*---------------------------------------------------------------------------*/
void
cc26xx_uart_set_input(int (*input)(unsigned char c))
{
input_handler = input;
/* Return early if disabled by user conf or if ports are misconfigured */
if(usable() == false) {
return;
}
if(input == NULL) {
/* Let the SERIAL PD power down */
uart_module.domain_lock = LPM_DOMAIN_NONE;
/* Disable module clocks under sleep and deep sleep */
ti_lib_prcm_peripheral_sleep_disable(PRCM_PERIPH_UART0);
ti_lib_prcm_peripheral_deep_sleep_disable(PRCM_PERIPH_UART0);
} else {
/* Request the SERIAL PD to stay on during deep sleep */
uart_module.domain_lock = LPM_DOMAIN_SERIAL;
/* Enable module clocks under sleep and deep sleep */
ti_lib_prcm_peripheral_sleep_enable(PRCM_PERIPH_UART0);
ti_lib_prcm_peripheral_deep_sleep_enable(PRCM_PERIPH_UART0);
}
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
enable();
return;
}
/*---------------------------------------------------------------------------*/
void
board_i2c_shutdown()
{
interface = NO_INTERFACE;
if(accessible()) {
ti_lib_i2c_master_disable(I2C0_BASE);
}
ti_lib_prcm_peripheral_run_disable(PRCM_PERIPH_I2C0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/*
* Set all pins to GPIO Input and disable the output driver. Set internal
* pull to match external pull
*
* SDA and SCL: external PU resistor
* SDA HP and SCL HP: MPU PWR low
*/
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_SDA_HP);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_SDA_HP, IOC_IOPULL_DOWN);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_SCL_HP);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_SCL_HP, IOC_IOPULL_DOWN);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_SDA);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_SDA, IOC_IOPULL_UP);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_SCL);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_SCL, IOC_IOPULL_UP);
}
/*---------------------------------------------------------------------------*/
void board_init()
{
uint8_t int_disabled = ti_lib_int_master_disable();
/* Turn on relevant PDs */
wakeup_handler();
/* Enable GPIO peripheral */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
/* Apply settings and wait for them to take effect */
ti_lib_prcm_load_set();
while (!ti_lib_prcm_load_get()) ;
lpm_register_module(&srf_module);
/* Re-enable interrupt if initially enabled. */
if (!int_disabled) {
ti_lib_int_master_enable();
}
/* Init of PWM */
pwm_init();
}
/*---------------------------------------------------------------------------*/
void
buzzer_start(int freq)
{
uint32_t load;
buzzer_on = 1;
lpm_pd_lock_obtain(&lock, PRCM_DOMAIN_PERIPH);
/* Stop the timer */
ti_lib_timer_disable(GPT0_BASE, TIMER_A);
if(freq > 0) {
load = (GET_MCU_CLOCK / freq);
ti_lib_timer_load_set(GPT0_BASE, TIMER_A, load);
ti_lib_timer_match_set(GPT0_BASE, TIMER_A, load / 2);
/* Start */
ti_lib_timer_enable(GPT0_BASE, TIMER_A);
}
/* Run in sleep mode */
ti_lib_prcm_peripheral_sleep_enable(PRCM_PERIPH_TIMER0);
ti_lib_prcm_peripheral_deep_sleep_enable(PRCM_PERIPH_TIMER0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
}
/*---------------------------------------------------------------------------*/
void
board_init()
{
/* Disable global interrupts */
bool int_disabled = ti_lib_int_master_disable();
/* Turn on relevant PDs */
wakeup_handler();
/* Enable GPIO peripheral */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
/* Apply settings and wait for them to take effect */
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Make sure the external flash is in the lower power mode */
ext_flash_init();
lpm_register_module(&launchpad_module);
/* For unsupported peripherals, select a default pin configuration */
configure_unused_pins();
/* Re-enable interrupt if initially enabled. */
if(!int_disabled) {
ti_lib_int_master_enable();
}
}
/*---------------------------------------------------------------------------*/
void
board_spi_close()
{
/* Power down SSI0 */
ti_lib_rom_prcm_peripheral_run_disable(PRCM_PERIPH_SSI0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
}
/*---------------------------------------------------------------------------*/
static void
lpm_drop_handler(uint8_t mode)
{
/*
* First, wait for any outstanding TX to complete. If we have an input
* handler, the SERIAL PD will be kept on and the UART module clock will
* be enabled under sleep as well as deep sleep. In theory, this means that
* we shouldn't lose any outgoing bytes, but we actually do on occasion.
* This byte loss may (or may not) be related to the freezing of IO latches
* between MCU and AON when we drop to deep sleep. This here is essentially a
* workaround
*/
if(accessible() == true) {
while(ti_lib_uart_busy(UART0_BASE));
}
/*
* If we have a registered input_handler then we need to retain RX
* capability. Thus, if this is not a shutdown notification and we have an
* input handler, we do nothing
*/
if((mode != LPM_MODE_SHUTDOWN) && (input_handler != NULL)) {
return;
}
/*
* If we reach here, we either don't care about staying awake or we have
* received a shutdown notification
*
* Only touch UART registers if the module is powered and clocked
*/
if(accessible() == true) {
/* Disable the module */
ti_lib_uart_disable(UART0_BASE);
/* Disable all UART interrupts and clear all flags */
disable_interrupts();
}
/*
* Always stop the clock in run mode. Also stop in Sleep and Deep Sleep if
* this is a request for full shutdown
*/
ti_lib_prcm_peripheral_run_disable(PRCM_PERIPH_UART0);
if(mode == LPM_MODE_SHUTDOWN) {
ti_lib_prcm_peripheral_sleep_disable(PRCM_PERIPH_UART0);
ti_lib_prcm_peripheral_deep_sleep_disable(PRCM_PERIPH_UART0);
}
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Set pins to low leakage configuration in preparation for deep sleep */
lpm_pin_set_default_state(BOARD_IOID_UART_TX);
lpm_pin_set_default_state(BOARD_IOID_UART_RX);
lpm_pin_set_default_state(BOARD_IOID_UART_CTS);
lpm_pin_set_default_state(BOARD_IOID_UART_RTS);
}
/*---------------------------------------------------------------------------*/
static void
power_and_clock(void)
{
/* Power on the SERIAL PD */
ti_lib_prcm_power_domain_on(PRCM_DOMAIN_SERIAL);
while(ti_lib_prcm_power_domain_status(PRCM_DOMAIN_SERIAL)
!= PRCM_DOMAIN_POWER_ON);
/* Enable UART clock in active mode */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_UART0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
}
/*---------------------------------------------------------------------------*/
void
board_i2c_wakeup()
{
/* First, make sure the SERIAL PD is on */
ti_lib_prcm_power_domain_on(PRCM_DOMAIN_SERIAL);
while((ti_lib_prcm_power_domain_status(PRCM_DOMAIN_SERIAL)
!= PRCM_DOMAIN_POWER_ON));
/* Enable the clock to I2C */
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_I2C0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* Enable and initialize the I2C master module */
ti_lib_i2c_master_init_exp_clk(I2C0_BASE, ti_lib_sys_ctrl_clock_get(),
true);
}
/*---------------------------------------------------------------------------*/
int
rf_core_power_up()
{
uint32_t cmd_status;
bool interrupts_disabled = ti_lib_int_master_disable();
ti_lib_int_pend_clear(INT_RF_CPE0);
ti_lib_int_pend_clear(INT_RF_CPE1);
ti_lib_int_disable(INT_RF_CPE0);
ti_lib_int_disable(INT_RF_CPE1);
/* Enable RF Core power domain */
ti_lib_prcm_power_domain_on(PRCM_DOMAIN_RFCORE);
while(ti_lib_prcm_power_domain_status(PRCM_DOMAIN_RFCORE)
!= PRCM_DOMAIN_POWER_ON);
ti_lib_prcm_domain_enable(PRCM_DOMAIN_RFCORE);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
while(!rf_core_is_accessible()) {
PRINTF("rf_core_power_up: Not ready\n");
}
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIFG) = 0x0;
HWREG(RFC_DBELL_NONBUF_BASE + RFC_DBELL_O_RFCPEIEN) = 0x0;
ti_lib_int_enable(INT_RF_CPE0);
ti_lib_int_enable(INT_RF_CPE1);
if(!interrupts_disabled) {
ti_lib_int_master_enable();
}
/* Let CPE boot */
HWREG(RFC_PWR_NONBUF_BASE + RFC_PWR_O_PWMCLKEN) = RF_CORE_CLOCKS_MASK;
/* Send ping (to verify RFCore is ready and alive) */
if(rf_core_send_cmd(CMDR_DIR_CMD(CMD_PING), &cmd_status) != RF_CORE_CMD_OK) {
PRINTF("rf_core_power_up: CMD_PING fail, CMDSTA=0x%08lx\n", cmd_status);
return RF_CORE_CMD_ERROR;
}
return RF_CORE_CMD_OK;
}
/*---------------------------------------------------------------------------*/
void
board_spi_open(uint32_t bit_rate, uint32_t clk_pin)
{
uint32_t buf;
/* SPI power */
ti_lib_rom_prcm_peripheral_run_enable(PRCM_PERIPH_SSI0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
/* SPI configuration */
ti_lib_ssi_int_disable(SSI0_BASE, SSI_RXOR | SSI_RXFF | SSI_RXTO | SSI_TXFF);
ti_lib_ssi_int_clear(SSI0_BASE, SSI_RXOR | SSI_RXTO);
ti_lib_rom_ssi_config_set_exp_clk(SSI0_BASE, CPU_FREQ, SSI_FRF_MOTO_MODE_0,
SSI_MODE_MASTER, bit_rate, 8);
ti_lib_rom_ioc_pin_type_ssi_master(SSI0_BASE, BOARD_IOID_SPI_MISO,
BOARD_IOID_SPI_MOSI, IOID_UNUSED, clk_pin);
ti_lib_ssi_enable(SSI0_BASE);
/* Get rid of residual data from SSI port */
while(ti_lib_ssi_data_get_non_blocking(SSI0_BASE, &buf));
}
/*---------------------------------------------------------------------------*/
void
buzzer_stop()
{
buzzer_on = 0;
lpm_pd_lock_release(&lock);
/* Stop the timer */
ti_lib_timer_disable(GPT0_BASE, TIMER_A);
/*
* Stop running in sleep mode.
* ToDo: Currently GPT0 is in use by clock_delay_usec (GPT0/TB) and by this
* module here (GPT0/TA). clock_delay_usec will never need GPT0/TB in sleep
* mode and we control TA here. Thus, with the current setup, it's OK to
* control whether GPT0 runs in sleep mode in this module here. However, if
* some other module at some point starts using GPT0, we should change this
* to happen through an umbrella module
*/
ti_lib_prcm_peripheral_sleep_disable(PRCM_PERIPH_TIMER0);
ti_lib_prcm_peripheral_deep_sleep_disable(PRCM_PERIPH_TIMER0);
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get());
}
