11 static inline void spi_reset(spi_inst_t *spi) {  in spi_reset()  argument
12     invalid_params_if(HARDWARE_SPI, spi != spi0 && spi != spi1);  in spi_reset()
13     reset_block_num(spi == spi0 ? RESET_SPI0 : RESET_SPI1);  in spi_reset()
16 static inline void spi_unreset(spi_inst_t *spi) {  in spi_unreset()  argument
17     invalid_params_if(HARDWARE_SPI, spi != spi0 && spi != spi1);  in spi_unreset()
18     unreset_block_num_wait_blocking(spi == spi0 ? RESET_SPI0 : RESET_SPI1);  in spi_unreset()
21 uint spi_init(spi_inst_t *spi, uint baudrate) {  in spi_init()  argument
22     spi_reset(spi);  in spi_init()
23     spi_unreset(spi);  in spi_init()
25     uint baud = spi_set_baudrate(spi, baudrate);  in spi_init()
26     spi_set_format(spi, 8, SPI_CPOL_0, SPI_CPHA_0, SPI_MSB_FIRST);  in spi_init()
28     hw_set_bits(&spi_get_hw(spi)->dmacr, SPI_SSPDMACR_TXDMAE_BITS | SPI_SSPDMACR_RXDMAE_BITS);  in spi_init()
31     hw_set_bits(&spi_get_hw(spi)->cr1, SPI_SSPCR1_SSE_BITS);  in spi_init()
36 void spi_deinit(spi_inst_t *spi) {  in spi_deinit()  argument
37     hw_clear_bits(&spi_get_hw(spi)->cr1, SPI_SSPCR1_SSE_BITS);  in spi_deinit()
38     hw_clear_bits(&spi_get_hw(spi)->dmacr, SPI_SSPDMACR_TXDMAE_BITS | SPI_SSPDMACR_RXDMAE_BITS);  in spi_deinit()
39     spi_reset(spi);  in spi_deinit()
42 uint spi_set_baudrate(spi_inst_t *spi, uint baudrate) {  in spi_set_baudrate()  argument
48     uint32_t enable_mask = spi_get_hw(spi)->cr1 & SPI_SSPCR1_SSE_BITS;  in spi_set_baudrate()
49     hw_clear_bits(&spi_get_hw(spi)->cr1, SPI_SSPCR1_SSE_BITS);  in spi_set_baudrate()
66     spi_get_hw(spi)->cpsr = prescale;  in spi_set_baudrate()
67 …  hw_write_masked(&spi_get_hw(spi)->cr0, (postdiv - 1) << SPI_SSPCR0_SCR_LSB, SPI_SSPCR0_SCR_BITS);  in spi_set_baudrate()
70     hw_set_bits(&spi_get_hw(spi)->cr1, enable_mask);  in spi_set_baudrate()
76 uint spi_get_baudrate(const spi_inst_t *spi) {  in spi_get_baudrate()  argument
77     uint prescale = spi_get_const_hw(spi)->cpsr;  in spi_get_baudrate()
78     uint postdiv = ((spi_get_const_hw(spi)->cr0  & SPI_SSPCR0_SCR_BITS) >> SPI_SSPCR0_SCR_LSB) + 1;  in spi_get_baudrate()
84 int __not_in_flash_func(spi_write_read_blocking)(spi_inst_t *spi, const uint8_t *src, uint8_t *dst,…  in __not_in_flash_func()
93         if (tx_remaining && spi_is_writable(spi) && rx_remaining < tx_remaining + fifo_depth) {  in __not_in_flash_func()
94             spi_get_hw(spi)->dr = (uint32_t) *src++;  in __not_in_flash_func()
97         if (rx_remaining && spi_is_readable(spi)) {  in __not_in_flash_func()
98             *dst++ = (uint8_t) spi_get_hw(spi)->dr;  in __not_in_flash_func()
107 int __not_in_flash_func(spi_write_blocking)(spi_inst_t *spi, const uint8_t *src, size_t len) {  in __not_in_flash_func()
113         while (!spi_is_writable(spi))  in __not_in_flash_func()
115         spi_get_hw(spi)->dr = (uint32_t)src[i];  in __not_in_flash_func()
119     while (spi_is_readable(spi))  in __not_in_flash_func()
120         (void)spi_get_hw(spi)->dr;  in __not_in_flash_func()
121     while (spi_get_hw(spi)->sr & SPI_SSPSR_BSY_BITS)  in __not_in_flash_func()
123     while (spi_is_readable(spi))  in __not_in_flash_func()
124         (void)spi_get_hw(spi)->dr;  in __not_in_flash_func()
127     spi_get_hw(spi)->icr = SPI_SSPICR_RORIC_BITS;  in __not_in_flash_func()
136 int __not_in_flash_func(spi_read_blocking)(spi_inst_t *spi, uint8_t repeated_tx_data, uint8_t *dst,…  in __not_in_flash_func()
142         if (tx_remaining && spi_is_writable(spi) && rx_remaining < tx_remaining + fifo_depth) {  in __not_in_flash_func()
143             spi_get_hw(spi)->dr = (uint32_t) repeated_tx_data;  in __not_in_flash_func()
146         if (rx_remaining && spi_is_readable(spi)) {  in __not_in_flash_func()
147             *dst++ = (uint8_t) spi_get_hw(spi)->dr;  in __not_in_flash_func()
156 int __not_in_flash_func(spi_write16_read16_blocking)(spi_inst_t *spi, const uint16_t *src, uint16_t…  in __not_in_flash_func()
164         if (tx_remaining && spi_is_writable(spi) && rx_remaining < tx_remaining + fifo_depth) {  in __not_in_flash_func()
165             spi_get_hw(spi)->dr = (uint32_t) *src++;  in __not_in_flash_func()
168         if (rx_remaining && spi_is_readable(spi)) {  in __not_in_flash_func()
169             *dst++ = (uint16_t) spi_get_hw(spi)->dr;  in __not_in_flash_func()
178 int __not_in_flash_func(spi_write16_blocking)(spi_inst_t *spi, const uint16_t *src, size_t len) {  in __not_in_flash_func()
183         while (!spi_is_writable(spi))  in __not_in_flash_func()
185         spi_get_hw(spi)->dr = (uint32_t)src[i];  in __not_in_flash_func()
188     while (spi_is_readable(spi))  in __not_in_flash_func()
189         (void)spi_get_hw(spi)->dr;  in __not_in_flash_func()
190     while (spi_get_hw(spi)->sr & SPI_SSPSR_BSY_BITS)  in __not_in_flash_func()
192     while (spi_is_readable(spi))  in __not_in_flash_func()
193         (void)spi_get_hw(spi)->dr;  in __not_in_flash_func()
196     spi_get_hw(spi)->icr = SPI_SSPICR_RORIC_BITS;  in __not_in_flash_func()
203 int __not_in_flash_func(spi_read16_blocking)(spi_inst_t *spi, uint16_t repeated_tx_data, uint16_t *…  in __not_in_flash_func()
209         if (tx_remaining && spi_is_writable(spi) && rx_remaining < tx_remaining + fifo_depth) {  in __not_in_flash_func()
210             spi_get_hw(spi)->dr = (uint32_t) repeated_tx_data;  in __not_in_flash_func()
213         if (rx_remaining && spi_is_readable(spi)) {  in __not_in_flash_func()
214             *dst++ = (uint16_t) spi_get_hw(spi)->dr;  in __not_in_flash_func()