X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fdrivers%2Fao_ms5607.c;h=8f1dcbe1688b268c00d5f6b526a2cc8f9a62cd5e;hp=1b55b7fdeea61d4f99101425fb3f38aed1606a4c;hb=2fa87754c5c11bb86e9b1878580c3d4f4b2463f5;hpb=f46d94ca5c969c88dd307d1b684d6fafa2157020 diff --git a/src/drivers/ao_ms5607.c b/src/drivers/ao_ms5607.c index 1b55b7fd..8f1dcbe1 100644 --- a/src/drivers/ao_ms5607.c +++ b/src/drivers/ao_ms5607.c @@ -17,21 +17,21 @@ #include #include -#include "ao_ms5607.h" +#include + +#if HAS_MS5607 || HAS_MS5611 static struct ao_ms5607_prom ms5607_prom; static uint8_t ms5607_configured; static void ao_ms5607_start(void) { - ao_spi_get(AO_MS5607_SPI_INDEX,AO_SPI_SPEED_FAST); - stm_gpio_set(AO_MS5607_CS_GPIO, AO_MS5607_CS, 0); + ao_spi_get_bit(AO_MS5607_CS_PORT, AO_MS5607_CS_PIN, AO_MS5607_CS, AO_MS5607_SPI_INDEX, AO_SPI_SPEED_FAST); } static void ao_ms5607_stop(void) { - stm_gpio_set(AO_MS5607_CS_GPIO, AO_MS5607_CS, 1); - ao_spi_put(AO_MS5607_SPI_INDEX); + ao_spi_put_bit(AO_MS5607_CS_PORT, AO_MS5607_CS_PIN, AO_MS5607_CS, AO_MS5607_SPI_INDEX); } static void @@ -51,7 +51,6 @@ ao_ms5607_crc(uint8_t *prom) uint8_t crc_byte = prom[15]; uint8_t cnt; uint16_t n_rem = 0; - uint16_t crc_read; uint8_t n_bit; prom[15] = 0; @@ -87,10 +86,12 @@ ao_ms5607_prom_read(struct ao_ms5607_prom *prom) } crc = ao_ms5607_crc((uint8_t *) prom); if (crc != (((uint8_t *) prom)[15] & 0xf)) { +#if HAS_TASK printf ("MS5607 PROM CRC error (computed %x actual %x)\n", crc, (((uint8_t *) prom)[15] & 0xf)); flush(); - ao_panic(AO_PANIC_SELF_TEST); +#endif + ao_panic(AO_PANIC_SELF_TEST_MS5607); } #if __BYTE_ORDER == __LITTLE_ENDIAN @@ -103,7 +104,7 @@ ao_ms5607_prom_read(struct ao_ms5607_prom *prom) #endif } -static void +void ao_ms5607_setup(void) { if (ms5607_configured) @@ -113,36 +114,37 @@ ao_ms5607_setup(void) ao_ms5607_prom_read(&ms5607_prom); } -static uint8_t ao_ms5607_done; +static volatile uint8_t ao_ms5607_done; static void ao_ms5607_isr(void) { - ao_exti_disable(AO_MS5607_MISO_GPIO, AO_MS5607_MISO); + ao_exti_disable(AO_MS5607_MISO_PORT, AO_MS5607_MISO_PIN); ao_ms5607_done = 1; - ao_wakeup(&ao_ms5607_done); + ao_wakeup((void *) &ao_ms5607_done); } static uint32_t ao_ms5607_get_sample(uint8_t cmd) { uint8_t reply[3]; uint8_t read; - uint16_t now; ao_ms5607_done = 0; ao_ms5607_start(); ao_spi_send(&cmd, 1, AO_MS5607_SPI_INDEX); - ao_exti_enable(AO_MS5607_MISO_GPIO, AO_MS5607_MISO); + + ao_exti_enable(AO_MS5607_MISO_PORT, AO_MS5607_MISO_PIN); + #if AO_MS5607_PRIVATE_PINS ao_spi_put(AO_MS5607_SPI_INDEX); #endif - cli(); + ao_arch_block_interrupts(); while (!ao_ms5607_done) - ao_sleep(&ao_ms5607_done); - sei(); + ao_sleep((void *) &ao_ms5607_done); + ao_arch_release_interrupts(); #if AO_MS5607_PRIVATE_PINS - stm_gpio_set(AO_MS5607_CS_GPIO, AO_MS5607_CS, 1); + stm_gpio_set(AO_MS5607_CS_PORT, AO_MS5607_CS_PIN, 1); #else ao_ms5607_stop(); #endif @@ -156,53 +158,31 @@ ao_ms5607_get_sample(uint8_t cmd) { return ((uint32_t) reply[0] << 16) | ((uint32_t) reply[1] << 8) | (uint32_t) reply[2]; } +#ifndef AO_MS5607_BARO_OVERSAMPLE +#define AO_MS5607_BARO_OVERSAMPLE 2048 +#endif + +#ifndef AO_MS5607_TEMP_OVERSAMPLE +#define AO_MS5607_TEMP_OVERSAMPLE AO_MS5607_BARO_OVERSAMPLE +#endif + +#define token_paster(x,y) x ## y +#define token_evaluator(x,y) token_paster(x,y) + +#define AO_CONVERT_D1 token_evaluator(AO_MS5607_CONVERT_D1_, AO_MS5607_BARO_OVERSAMPLE) +#define AO_CONVERT_D2 token_evaluator(AO_MS5607_CONVERT_D2_, AO_MS5607_TEMP_OVERSAMPLE) + void ao_ms5607_sample(struct ao_ms5607_sample *sample) { - sample->pres = ao_ms5607_get_sample(AO_MS5607_CONVERT_D1_2048); - sample->temp = ao_ms5607_get_sample(AO_MS5607_CONVERT_D2_2048); + sample->pres = ao_ms5607_get_sample(AO_CONVERT_D1); + sample->temp = ao_ms5607_get_sample(AO_CONVERT_D2); } -void -ao_ms5607_convert(struct ao_ms5607_sample *sample, struct ao_ms5607_value *value) -{ - uint8_t addr; - int32_t dT; - int32_t TEMP; - int64_t OFF; - int64_t SENS; - int32_t P; - - dT = sample->temp - ((int32_t) ms5607_prom.tref << 8); - - TEMP = 2000 + (((int64_t) dT * ms5607_prom.tempsens) >> 23); - - OFF = ((int64_t) ms5607_prom.off << 17) + (((int64_t) ms5607_prom.tco * dT) >> 6); - - SENS = ((int64_t) ms5607_prom.sens << 16) + (((int64_t) ms5607_prom.tcs * dT) >> 7); - - if (TEMP < 2000) { - int32_t T2 = ((int64_t) dT * (int64_t) dT) >> 31; - int32_t TEMPM = TEMP - 2000; - int64_t OFF2 = (61 * (int64_t) TEMPM * (int64_t) TEMPM) >> 4; - int64_t SENS2 = 2 * (int64_t) TEMPM * (int64_t) TEMPM; - if (TEMP < 1500) { - int32_t TEMPP = TEMP + 1500; - int64_t TEMPP2 = TEMPP * TEMPP; - OFF2 = OFF2 + 15 * TEMPP2; - SENS2 = SENS2 + 8 * TEMPP2; - } - TEMP -= T2; - OFF -= OFF2; - SENS -= SENS2; - } - - value->pres = ((((int64_t) sample->pres * SENS) >> 21) - OFF) >> 15; - value->temp = TEMP; -} +#include "ao_ms5607_convert.c" +#if HAS_TASK struct ao_ms5607_sample ao_ms5607_current; -uint8_t ao_ms5607_valid; static void ao_ms5607(void) @@ -210,13 +190,11 @@ ao_ms5607(void) ao_ms5607_setup(); for (;;) { - static struct ao_ms5607_sample ao_ms5607_next; - ao_ms5607_sample(&ao_ms5607_next); + ao_ms5607_sample(&ao_ms5607_current); ao_arch_critical( - ao_ms5607_current = ao_ms5607_next; - ao_ms5607_valid = 1; + AO_DATA_PRESENT(AO_DATA_MS5607); + AO_DATA_WAIT(); ); - ao_delay(0); } } @@ -238,13 +216,11 @@ ao_ms5607_info(void) static void ao_ms5607_dump(void) { - struct ao_ms5607_sample sample; struct ao_ms5607_value value; - sample = ao_ms5607_current; - ao_ms5607_convert(&sample, &value); - printf ("Pressure: %8u %8d\n", sample.pres, value.pres); - printf ("Temperature: %8u %8d\n", sample.temp, value.temp); + ao_ms5607_convert(&ao_ms5607_current, &value); + printf ("Pressure: %8u %8d\n", ao_ms5607_current.pres, value.pres); + printf ("Temperature: %8u %8d\n", ao_ms5607_current.temp, value.temp); printf ("Altitude: %ld\n", ao_pa_to_altitude(value.pres)); } @@ -252,30 +228,28 @@ __code struct ao_cmds ao_ms5607_cmds[] = { { ao_ms5607_dump, "B\0Display MS5607 data" }, { 0, NULL }, }; +#endif /* HAS_TASK */ void ao_ms5607_init(void) { ms5607_configured = 0; - ao_ms5607_valid = 0; - ao_cmd_register(&ao_ms5607_cmds[0]); - ao_spi_init_cs(AO_MS5607_CS_GPIO, (1 << AO_MS5607_CS)); + ao_spi_init_cs(AO_MS5607_CS_PORT, (1 << AO_MS5607_CS_PIN)); +#if HAS_TASK + ao_cmd_register(&ao_ms5607_cmds[0]); ao_add_task(&ao_ms5607_task, ao_ms5607, "ms5607"); +#endif /* Configure the MISO pin as an interrupt; when the * conversion is complete, the MS5607 will raise this * pin as a signal */ - ao_exti_setup(AO_MS5607_MISO_GPIO, - AO_MS5607_MISO, - AO_EXTI_MODE_RISING, + ao_exti_setup(AO_MS5607_MISO_PORT, + AO_MS5607_MISO_PIN, + AO_EXTI_MODE_RISING| + AO_EXTI_PIN_NOCONFIGURE, ao_ms5607_isr); - - /* Reset the pin from INPUT to ALTERNATE so that SPI works - * This needs an abstraction at some point... - */ - stm_moder_set(AO_MS5607_MISO_GPIO, - AO_MS5607_MISO, - STM_MODER_ALTERNATE); } + +#endif