X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstm%2Fstm32l.h;h=54d95c9ac574edb80d406b9593d7f14c1ad69f62;hb=e9362841b1075a2ae59eecc73137b20e700567a8;hp=50e5cc346a9ee0f404f06729a68ab6cc18f53182;hpb=a953ac32033ded18adf0cb3ca20134385fcd0a6d;p=fw%2Faltos diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h index 50e5cc34..54d95c9a 100644 --- a/src/stm/stm32l.h +++ b/src/stm/stm32l.h @@ -21,6 +21,7 @@ #include typedef volatile uint32_t vuint32_t; +typedef volatile void * vvoid_t; struct stm_gpio { vuint32_t moder; @@ -133,6 +134,10 @@ stm_pupdr_get(struct stm_gpio *gpio, int pin) { static inline void stm_afr_set(struct stm_gpio *gpio, int pin, uint32_t value) { + /* + * Set alternate pin mode too + */ + stm_moder_set(gpio, pin, STM_MODER_ALTERNATE); if (pin < 8) gpio->afrl = ((gpio->afrl & ~(STM_AFR_MASK << STM_AFR_SHIFT(pin))) | @@ -155,6 +160,17 @@ stm_afr_get(struct stm_gpio *gpio, int pin) { } } +static inline void +stm_gpio_set(struct stm_gpio *gpio, int pin, uint8_t value) { + /* Use the bit set/reset register to do this atomically */ + gpio->bsrr = ((uint32_t) (value ^ 1) << (pin + 16)) | ((uint32_t) value << pin); +} + +static inline uint8_t +stm_gpio_isset(struct stm_gpio *gpio, int pin) { + return (gpio->idr >> pin) & 1; +} + extern struct stm_gpio stm_gpioa; extern struct stm_gpio stm_gpiob; extern struct stm_gpio stm_gpioc; @@ -234,11 +250,6 @@ extern struct stm_usart stm_usart3; #define STM_USART_CR3_IREN (1) /* IrDA mode enable */ #define STM_USART_CR3_EIE (0) /* Error interrupt enable */ -struct stm_spi { -}; - -extern struct stm_spi stm_spi1; - struct stm_tim { }; @@ -838,4 +849,395 @@ isr(tim7) #define STM_ISR_TIM6_POS 43 #define STM_ISR_TIM7_POS 44 +struct stm_dma_channel { + vuint32_t ccr; + vuint32_t cndtr; + vvoid_t cpar; + vvoid_t cmar; + vuint32_t reserved; +}; + +#define STM_NUM_DMA 7 + +struct stm_dma { + vuint32_t isr; + vuint32_t ifcr; + struct stm_dma_channel channel[STM_NUM_DMA]; +}; + +extern struct stm_dma stm_dma; + +/* DMA channels go from 1 to 7, instead of 0 to 6 (sigh) + */ + +#define STM_DMA_INDEX(channel) ((channel) - 1) + +#define STM_DMA_ISR(index) ((index) << 2) +#define STM_DMA_ISR_MASK 0xf +#define STM_DMA_ISR_TEIF 3 +#define STM_DMA_ISR_HTIF 2 +#define STM_DMA_ISR_TCIF 1 +#define STM_DMA_ISR_GIF 0 + +#define STM_DMA_IFCR(index) ((index) << 2) +#define STM_DMA_IFCR_MASK 0xf +#define STM_DMA_IFCR_CTEIF 3 +#define STM_DMA_IFCR_CHTIF 2 +#define STM_DMA_IFCR_CTCIF 1 +#define STM_DMA_IFCR_CGIF 0 + +#define STM_DMA_CCR_MEM2MEM (14) + +#define STM_DMA_CCR_PL (12) +#define STM_DMA_CCR_PL_LOW (0) +#define STM_DMA_CCR_PL_MEDIUM (1) +#define STM_DMA_CCR_PL_HIGH (2) +#define STM_DMA_CCR_PL_VERY_HIGH (3) +#define STM_DMA_CCR_PL_MASK (3) + +#define STM_DMA_CCR_MSIZE (10) +#define STM_DMA_CCR_MSIZE_8 (0) +#define STM_DMA_CCR_MSIZE_16 (1) +#define STM_DMA_CCR_MSIZE_32 (2) +#define STM_DMA_CCR_MSIZE_MASK (3) + +#define STM_DMA_CCR_PSIZE (8) +#define STM_DMA_CCR_PSIZE_8 (0) +#define STM_DMA_CCR_PSIZE_16 (1) +#define STM_DMA_CCR_PSIZE_32 (2) +#define STM_DMA_CCR_PSIZE_MASK (3) + +#define STM_DMA_CCR_MINC (7) +#define STM_DMA_CCR_PINC (6) +#define STM_DMA_CCR_CIRC (5) +#define STM_DMA_CCR_DIR (4) +#define STM_DMA_CCR_DIR_PER_TO_MEM 0 +#define STM_DMA_CCR_DIR_MEM_TO_PER 1 +#define STM_DMA_CCR_TEIE (3) +#define STM_DMA_CCR_HTIE (2) +#define STM_DMA_CCR_TCIE (1) +#define STM_DMA_CCR_EN (0) + +#define STM_DMA_CHANNEL_ADC1 1 +#define STM_DMA_CHANNEL_SPI1_RX 2 +#define STM_DMA_CHANNEL_SPI1_TX 3 +#define STM_DMA_CHANNEL_SPI2_RX 4 +#define STM_DMA_CHANNEL_SPI2_TX 5 +#define STM_DMA_CHANNEL_USART3_TX 2 +#define STM_DMA_CHANNEL_USART3_RX 3 +#define STM_DMA_CHANNEL_USART1_TX 4 +#define STM_DMA_CHANNEL_USART1_RX 5 +#define STM_DMA_CHANNEL_USART2_RX 6 +#define STM_DMA_CHANNEL_USART2_TX 7 +#define STM_DMA_CHANNEL_I2C2_TX 4 +#define STM_DMA_CHANNEL_I2C2_RX 5 +#define STM_DMA_CHANNEL_I2C1_RX 6 +#define STM_DMA_CHANNEL_I2C1_TX 7 +#define STM_DMA_CHANNEL_TIM2_CH3 1 +#define STM_DMA_CHANNEL_TIM2_UP 2 +#define STM_DMA_CHANNEL_TIM2_CH1 5 +#define STM_DMA_CHANNEL_TIM2_CH2 7 +#define STM_DMA_CHANNEL_TIM2_CH4 7 +#define STM_DMA_CHANNEL_TIM3_CH3 2 +#define STM_DMA_CHANNEL_TIM3_CH4 3 +#define STM_DMA_CHANNEL_TIM3_UP 3 +#define STM_DMA_CHANNEL_TIM3_CH1 6 +#define STM_DMA_CHANNEL_TIM3_TRIG 6 +#define STM_DMA_CHANNEL_TIM4_CH1 1 +#define STM_DMA_CHANNEL_TIM4_CH2 4 +#define STM_DMA_CHANNEL_TIM4_CH3 5 +#define STM_DMA_CHANNEL_TIM4_UP 7 +#define STM_DMA_CHANNEL_TIM6_UP_DA 2 +#define STM_DMA_CHANNEL_C_CHANNEL1 2 +#define STM_DMA_CHANNEL_TIM7_UP_DA 3 +#define STM_DMA_CHANNEL_C_CHANNEL2 3 + +/* + * Only spi channel 1 and 2 can use DMA + */ +#define STM_NUM_SPI 2 + +struct stm_spi { + vuint32_t cr1; + vuint32_t cr2; + vuint32_t sr; + vuint32_t dr; + vuint32_t crcpr; + vuint32_t rxcrcr; + vuint32_t txcrcr; +}; + +extern struct stm_spi stm_spi1, stm_spi2, stm_spi3; + +/* SPI channels go from 1 to 3, instead of 0 to 2 (sigh) + */ + +#define STM_SPI_INDEX(channel) ((channel) - 1) + +#define STM_SPI_CR1_BIDIMODE 15 +#define STM_SPI_CR1_BIDIOE 14 +#define STM_SPI_CR1_CRCEN 13 +#define STM_SPI_CR1_CRCNEXT 12 +#define STM_SPI_CR1_DFF 11 +#define STM_SPI_CR1_RXONLY 10 +#define STM_SPI_CR1_SSM 9 +#define STM_SPI_CR1_SSI 8 +#define STM_SPI_CR1_LSBFIRST 7 +#define STM_SPI_CR1_SPE 6 +#define STM_SPI_CR1_BR 3 +#define STM_SPI_CR1_BR_PCLK_2 0 +#define STM_SPI_CR1_BR_PCLK_4 1 +#define STM_SPI_CR1_BR_PCLK_8 2 +#define STM_SPI_CR1_BR_PCLK_16 3 +#define STM_SPI_CR1_BR_PCLK_32 4 +#define STM_SPI_CR1_BR_PCLK_64 5 +#define STM_SPI_CR1_BR_PCLK_128 6 +#define STM_SPI_CR1_BR_PCLK_256 7 +#define STM_SPI_CR1_BR_MASK 7 + +#define STM_SPI_CR1_MSTR 2 +#define STM_SPI_CR1_CPOL 1 +#define STM_SPI_CR1_CPHA 0 + +#define STM_SPI_CR2_TXEIE 7 +#define STM_SPI_CR2_RXNEIE 6 +#define STM_SPI_CR2_ERRIE 5 +#define STM_SPI_CR2_SSOE 2 +#define STM_SPI_CR2_TXDMAEN 1 +#define STM_SPI_CR2_RXDMAEN 0 + +#define STM_SPI_SR_BSY 7 +#define STM_SPI_SR_OVR 6 +#define STM_SPI_SR_MODF 5 +#define STM_SPI_SR_CRCERR 4 +#define STM_SPI_SR_TXE 1 +#define STM_SPI_SR_RXNE 0 + +struct stm_adc { + vuint32_t sr; + vuint32_t cr1; + vuint32_t cr2; + vuint32_t smpr1; + vuint32_t smpr2; + vuint32_t smpr3; + vuint32_t jofr1; + vuint32_t jofr2; + vuint32_t jofr3; + vuint32_t jofr4; + vuint32_t htr; + vuint32_t ltr; + vuint32_t sqr1; + vuint32_t sqr2; + vuint32_t sqr3; + vuint32_t sqr4; + vuint32_t sqr5; + vuint32_t jsqr; + vuint32_t jdr1; + vuint32_t jdr2; + vuint32_t jdr3; + vuint32_t jdr4; + vuint32_t dr; + uint8_t reserved[0x300 - 0x5c]; + vuint32_t csr; + vuint32_t ccr; +}; + +extern struct stm_adc stm_adc; + +#define STM_ADC_SR_JCNR 9 +#define STM_ADC_SR_RCNR 8 +#define STM_ADC_SR_ADONS 6 +#define STM_ADC_SR_OVR 5 +#define STM_ADC_SR_STRT 4 +#define STM_ADC_SR_JSTRT 3 +#define STM_ADC_SR_JEOC 2 +#define STM_ADC_SR_EOC 1 +#define STM_ADC_SR_AWD 0 + +#define STM_ADC_CR1_OVRIE 26 +#define STM_ADC_CR1_RES 24 +#define STM_ADC_CR1_RES_12 0 +#define STM_ADC_CR1_RES_10 1 +#define STM_ADC_CR1_RES_8 2 +#define STM_ADC_CR1_RES_6 3 +#define STM_ADC_CR1_RES_MASK 3 +#define STM_ADC_CR1_AWDEN 23 +#define STM_ADC_CR1_JAWDEN 22 +#define STM_ADC_CR1_PDI 17 +#define STM_ADC_CR1_PDD 16 +#define STM_ADC_CR1_DISCNUM 13 +#define STM_ADC_CR1_DISCNUM_1 0 +#define STM_ADC_CR1_DISCNUM_2 1 +#define STM_ADC_CR1_DISCNUM_3 2 +#define STM_ADC_CR1_DISCNUM_4 3 +#define STM_ADC_CR1_DISCNUM_5 4 +#define STM_ADC_CR1_DISCNUM_6 5 +#define STM_ADC_CR1_DISCNUM_7 6 +#define STM_ADC_CR1_DISCNUM_8 7 +#define STM_ADC_CR1_DISCNUM_MASK 7 +#define STM_ADC_CR1_JDISCEN 12 +#define STM_ADC_CR1_DISCEN 11 +#define STM_ADC_CR1_JAUTO 10 +#define STM_ADC_CR1_AWDSGL 9 +#define STM_ADC_CR1_SCAN 8 +#define STM_ADC_CR1_JEOCIE 7 +#define STM_ADC_CR1_AWDIE 6 +#define STM_ADC_CR1_EOCIE 5 +#define STM_ADC_CR1_AWDCH 0 +#define STM_ADC_CR1_AWDCH_MASK 0x1f + +#define STM_ADC_CR2_SWSTART 30 +#define STM_ADC_CR2_EXTEN 28 +#define STM_ADC_CR2_EXTEN_DISABLE 0 +#define STM_ADC_CR2_EXTEN_RISING 1 +#define STM_ADC_CR2_EXTEN_FALLING 2 +#define STM_ADC_CR2_EXTEN_BOTH 3 +#define STM_ADC_CR2_EXTEN_MASK 3 +#define STM_ADC_CR2_EXTSEL 24 +#define STM_ADC_CR2_EXTSEL_TIM9_CC2 0 +#define STM_ADC_CR2_EXTSEL_TIM9_TRGO 1 +#define STM_ADC_CR2_EXTSEL_TIM2_CC3 2 +#define STM_ADC_CR2_EXTSEL_TIM2_CC2 3 +#define STM_ADC_CR2_EXTSEL_TIM3_TRGO 4 +#define STM_ADC_CR2_EXTSEL_TIM4_CC4 5 +#define STM_ADC_CR2_EXTSEL_TIM2_TRGO 6 +#define STM_ADC_CR2_EXTSEL_TIM3_CC1 7 +#define STM_ADC_CR2_EXTSEL_TIM3_CC3 8 +#define STM_ADC_CR2_EXTSEL_TIM4_TRGO 9 +#define STM_ADC_CR2_EXTSEL_TIM6_TRGO 10 +#define STM_ADC_CR2_EXTSEL_EXTI_11 15 +#define STM_ADC_CR2_EXTSEL_MASK 15 +#define STM_ADC_CR2_JWSTART 22 +#define STM_ADC_CR2_JEXTEN 20 +#define STM_ADC_CR2_JEXTEN_DISABLE 0 +#define STM_ADC_CR2_JEXTEN_RISING 1 +#define STM_ADC_CR2_JEXTEN_FALLING 2 +#define STM_ADC_CR2_JEXTEN_BOTH 3 +#define STM_ADC_CR2_JEXTEN_MASK 3 +#define STM_ADC_CR2_JEXTSEL 16 +#define STM_ADC_CR2_JEXTSEL_TIM9_CC1 0 +#define STM_ADC_CR2_JEXTSEL_TIM9_TRGO 1 +#define STM_ADC_CR2_JEXTSEL_TIM2_TRGO 2 +#define STM_ADC_CR2_JEXTSEL_TIM2_CC1 3 +#define STM_ADC_CR2_JEXTSEL_TIM3_CC4 4 +#define STM_ADC_CR2_JEXTSEL_TIM4_TRGO 5 +#define STM_ADC_CR2_JEXTSEL_TIM4_CC1 6 +#define STM_ADC_CR2_JEXTSEL_TIM4_CC2 7 +#define STM_ADC_CR2_JEXTSEL_TIM4_CC3 8 +#define STM_ADC_CR2_JEXTSEL_TIM10_CC1 9 +#define STM_ADC_CR2_JEXTSEL_TIM7_TRGO 10 +#define STM_ADC_CR2_JEXTSEL_EXTI_15 15 +#define STM_ADC_CR2_JEXTSEL_MASK 15 +#define STM_ADC_CR2_ALIGN 11 +#define STM_ADC_CR2_EOCS 10 +#define STM_ADC_CR2_DDS 9 +#define STM_ADC_CR2_DMA 8 +#define STM_ADC_CR2_DELS 4 +#define STM_ADC_CR2_DELS_NONE 0 +#define STM_ADC_CR2_DELS_UNTIL_READ 1 +#define STM_ADC_CR2_DELS_7 2 +#define STM_ADC_CR2_DELS_15 3 +#define STM_ADC_CR2_DELS_31 4 +#define STM_ADC_CR2_DELS_63 5 +#define STM_ADC_CR2_DELS_127 6 +#define STM_ADC_CR2_DELS_255 7 +#define STM_ADC_CR2_DELS_MASK 7 +#define STM_ADC_CR2_CONT 1 +#define STM_ADC_CR2_ADON 0 + +#define STM_ADC_CCR_TSVREFE 23 +#define STM_ADC_CCR_ADCPRE 16 +#define STM_ADC_CCR_ADCPRE_HSI_1 0 +#define STM_ADC_CCR_ADCPRE_HSI_2 1 +#define STM_ADC_CCR_ADCPRE_HSI_4 2 +#define STM_ADC_CCR_ADCPRE_MASK 3 + +struct stm_temp_cal { + uint16_t vref; + uint16_t ts_cal_cold; + uint16_t reserved; + uint16_t ts_cal_hot; +}; + +extern struct stm_temp_cal stm_temp_cal; + +#define stm_temp_cal_cold 25 +#define stm_temp_cal_hot 110 + +#define STM_NUM_I2C 2 + +#define STM_I2C_INDEX(channel) ((channel) - 1) + +struct stm_i2c { + vuint32_t cr1; + vuint32_t cr2; + vuint32_t oar1; + vuint32_t oar2; + vuint32_t dr; + vuint32_t sr1; + vuint32_t sr2; + vuint32_t ccr; + vuint32_t trise; +}; + +extern struct stm_i2c stm_i2c1, stm_i2c2; + +#define STM_I2C_CR1_SWRST 15 +#define STM_I2C_CR1_ALERT 13 +#define STM_I2C_CR1_PEC 12 +#define STM_I2C_CR1_POS 11 +#define STM_I2C_CR1_ACK 10 +#define STM_I2C_CR1_STOP 9 +#define STM_I2C_CR1_START 8 +#define STM_I2C_CR1_NOSTRETCH 7 +#define STM_I2C_CR1_ENGC 6 +#define STM_I2C_CR1_ENPEC 5 +#define STM_I2C_CR1_ENARP 4 +#define STM_I2C_CR1_SMBTYPE 3 +#define STM_I2C_CR1_SMBUS 1 +#define STM_I2C_CR1_PE 0 + +#define STM_I2C_CR2_LAST 12 +#define STM_I2C_CR2_DMAEN 11 +#define STM_I2C_CR2_ITBUFEN 10 +#define STM_I2C_CR2_ITEVTEN 9 +#define STM_I2C_CR2_ITERREN 8 +#define STM_I2C_CR2_FREQ 0 +#define STM_I2C_CR2_FREQ_2_MHZ 2 +#define STM_I2C_CR2_FREQ_4_MHZ 4 +#define STM_I2C_CR2_FREQ_8_MHZ 8 +#define STM_I2C_CR2_FREQ_16_MHZ 16 +#define STM_I2C_CR2_FREQ_32_MHZ 32 +#define STM_I2C_CR2_FREQ_MASK 0x3f; + +#define STM_I2C_SR1_SMBALERT 15 +#define STM_I2C_SR1_TIMEOUT 14 +#define STM_I2C_SR1_PECERR 12 +#define STM_I2C_SR1_OVR 11 +#define STM_I2C_SR1_AF 10 +#define STM_I2C_SR1_ARLO 9 +#define STM_I2C_SR1_BERR 8 +#define STM_I2C_SR1_TXE 7 +#define STM_I2C_SR1_RXNE 6 +#define STM_I2C_SR1_STOPF 4 +#define STM_I2C_SR1_ADD10 3 +#define STM_I2C_SR1_BTF 2 +#define STM_I2C_SR1_ADDR 1 +#define STM_I2C_SR1_SB 0 + +#define STM_I2C_SR2_PEC 8 +#define STM_I2C_SR2_PEC_MASK 0xff00 +#define STM_I2C_SR2_DUALF 7 +#define STM_I2C_SR2_SMBHOST 6 +#define STM_I2C_SR2_SMBDEFAULT 5 +#define STM_I2C_SR2_GENCALL 4 +#define STM_I2C_SR2_TRA 2 +#define STM_I2C_SR2_BUSY 1 +#define STM_I2C_SR2_MSL 0 + +#define STM_I2C_CCR_FS 15 +#define STM_I2C_CCR_DUTY 14 +#define STM_I2C_CCR_CCR 0 +#define STM_I2C_CCR_MASK 0x7ff + #endif /* _STM32L_H_ */