extern uint8_t stm_usb_sram[] __attribute__ ((aligned(4)));
-//#define stm_usb_sram ((uint8_t *)0x40006000);
+//#define stm_usb_sram ((uint8_t *)0x40006000)
+
+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;
+
+#define stm_dma (*((struct stm_dma *) 0x40020000))
+
+/* 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 0xfUL
+#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 0xfUL
+#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_TX 6
+#define STM_DMA_CHANNEL_I2C1_RX 7
+#define STM_DMA_CHANNEL_TIM1_CH1 2
+#define STM_DMA_CHANNEL_TIM1_CH4 4
+#define STM_DMA_CHANNEL_TIM1_TRIG 4
+#define STM_DMA_CHANNEL_TIM1_COM 4
+#define STM_DMA_CHANNEL_TIM1_UP 5
+#define STM_DMA_CHANNEL_TIM1_CH3 6
+#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
+
+/* high density, xl-density and connectivity devices also have dma2 */
+
+#define STM_DMA2_CHANNEL_ADC3 5
+#define STM_DMA2_CHANNEL_SPI3_RX 1
+#define STM_DMA2_CHANNEL_SPI3_TX 2
+#define STM_DMA2_CHANNEL_UART4_RX 3
+#define STM_DMA2_CHANNEL_UART4_TX 5
+#define STM_DMA2_CHANNEL_TIM5_CH4 1
+#define STM_DMA2_CHANNEL_TIM5_TRIG 1
+#define STM_DMA2_CHANNEL_TIM5_CH3 2
+#define STM_DMA2_CHANNEL_TIM5_UP 2
+#define STM_DMA2_CHANNEL_TIM5_CH2 4
+#define STM_DMA2_CHANNEL_TIM5_CH1 5
+#define STM_DMA2_CHANNEL_TIM6_UP 3
+#define STM_DMA2_CHANNEL_DAC_CHANNEL1 3
+#define STM_DMA2_CHANNEL_TIM7_UP 4
+#define STM_DMA2_CHANNEL_DAC_CHANNEL2 4
+#define STM_DMA2_CHANNEL_TIM8_CH3 1
+#define STM_DMA2_CHANNEL_TIM8_UP 1
+#define STM_DMA2_CHANNEL_TIM8_CH4 2
+#define STM_DMA2_CHANNEL_TIM8_TRIG 2
+#define STM_DMA2_CHANNEL_TIM8_COM 2
+#define STM_DMA2_CHANNEL_TIM8_CH1 3
+#define STM_DMA2_CHANNEL_TIM8_CH2 5
+
+struct stm_spi {
+ vuint32_t cr1;
+ vuint32_t cr2;
+ vuint32_t sr;
+ vuint32_t dr;
+
+ vuint32_t crcpr;
+ vuint32_t rxcrcr;
+ vuint32_t txcrcr;
+ vuint32_t i2scfgr;
+
+ vuint32_t i2spr;
+};
+
+extern struct stm_spi stm_spi1, stm_spi2;
+
+//#define stm_spi1 (*((struct stm_spi *) 0x40013000))
+//#define stm_spi2 (*((struct stm_spi *) 0x40003800))
+
+/* SPI channels go from 1 to 2, instead of 0 to 1 (sigh)
+ */
+
+#define STM_NUM_SPI 2
+
+#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 7UL
+
+#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_FRE 8
+#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_UDR 3
+#define STM_SPI_SR_CHSIDE 2
+#define STM_SPI_SR_TXE 1
+#define STM_SPI_SR_RXNE 0
+
+
#define isr_decl(name) void stm_ ## name ## _isr(void)
projects / fw / altos / blobdiff