X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fcortex-m3%2Fdrv%2Fhsmci_sam3.c;h=b0c0ad0af522693a3afc08a548ee997352e4298d;hb=088cc866a57a0402f6ba3f232fcf8f59c79626d1;hp=51b79d9cd4723b11a411cdd782c5d8f9dea28734;hpb=a5cc64b8fb7daebbb65b96034757c4daee115649;p=bertos.git diff --git a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c index 51b79d9c..b0c0ad0a 100644 --- a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c +++ b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c @@ -40,20 +40,14 @@ #include #include +#include + +#include #include #include -/** DMA Transfer Descriptor as well as Linked List Item */ -typedef struct DmacDesc -{ - uint32_t src_addr; /**< Source buffer address */ - uint32_t dst_addr; /**< Destination buffer address */ - uint32_t ctrl_a; /**< Control A register settings */ - uint32_t ctrl_b; /**< Control B register settings */ - uint32_t dsc_addr; /**< Next descriptor address */ -} DmacDesc; #define HSMCI_CLK_DIV(RATE) ((CPU_FREQ / (RATE << 1)) - 1) @@ -75,23 +69,9 @@ typedef struct DmacDesc cpu_relax(); \ } while (!(HSMCI_SR & BV(HSMCI_SR_RXRDY))) -static DECLARE_ISR(hsmci_irq) -{ - uint32_t status = HSMCI_SR; - if (status & BV(HSMCI_IER_DMADONE)) - { - } -} -static DECLARE_ISR(dmac_irq) -{ - uint32_t stat = DMAC_EBCISR; +#define HSMCI_DMAC_CH 3 - if (stat & BV(DMAC_EBCISR_ERR3)) - { - kprintf("err %08lx\n", stat); - } -} void hsmci_readResp(uint32_t *resp, size_t len) { @@ -108,66 +88,63 @@ bool hsmci_sendCmd(uint8_t index, uint32_t argument, uint32_t reply_type) HSMCI_ARGR = argument; HSMCI_CMDR = index | reply_type | BV(HSMCI_CMDR_MAXLAT); - uint32_t status = HSMCI_SR; - while (!(status & BV(HSMCI_SR_CMDRDY))) - { + uint32_t status; + do { + status = HSMCI_SR; + if (status & HSMCI_RESP_ERROR_MASK) return status; cpu_relax(); - status = HSMCI_SR; - } + } while (!(status & BV(HSMCI_SR_CMDRDY))); return 0; } -INLINE void hsmci_setBlockSize(size_t blk_size) -{ - HSMCI_DMA |= BV(HSMCI_DMA_DMAEN); - HSMCI_BLKR = blk_size << HSMCI_BLKR_BLKLEN_SHIFT; -} - -void hsmci_prgTxDMA(const uint32_t *buf, size_t word_num, size_t blk_size) -{ +#define HSMCI_WRITE_DMAC_CFG (BV(DMAC_CFG_DST_H2SEL) | \ + BV(DMAC_CFG_SOD) | \ + ((0 << DMAC_CFG_DST_PER_SHIFT) & DMAC_CFG_DST_PER_MASK) | \ + (0 & DMAC_CFG_SRC_PER_MASK)) - hsmci_setBlockSize(blk_size); +#define HSMCI_WRITE_DMAC_CTRLB (BV(DMAC_CTRLB_SRC_DSCR) | BV(DMAC_CTRLB_DST_DSCR) | \ + DMAC_CTRLB_FC_MEM2PER_DMA_FC | \ + DMAC_CTRLB_DST_INCR_FIXED | DMAC_CTRLB_SRC_INCR_INCREMENTING) - DMAC_CHDR = BV(DMAC_CHDR_DIS0); +#define HSMCI_WRITE_DMAC_CTRLA (DMAC_CTRLA_SRC_WIDTH_WORD | \ + DMAC_CTRLA_DST_WIDTH_WORD) - DMAC_SADDR0 = (uint32_t)buf; - DMAC_DADDR0 = (uint32_t)&HSMCI_TDR; - DMAC_DSCR0 = 0; +#define HSMCI_READ_DMAC_CFG (BV(DMAC_CFG_SRC_H2SEL) | \ + BV(DMAC_CFG_SOD) | \ + ((0 << DMAC_CFG_DST_PER_SHIFT) & DMAC_CFG_DST_PER_MASK) | \ + (0 & DMAC_CFG_SRC_PER_MASK)) - DMAC_CFG0 = BV(DMAC_CFG_DST_H2SEL) | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT); - DMAC_CTRLA0 = (word_num & DMAC_CTRLA_BTSIZE_MASK) | - DMAC_CTRLA_SRC_WIDTH_WORD | DMAC_CTRLA_DST_WIDTH_WORD; - DMAC_CTRLB0 = (BV(DMAC_CTRLB_SRC_DSCR) | BV(DMAC_CTRLB_DST_DSCR) | DMAC_CTRLB_FC_MEM2PER_DMA_FC | - DMAC_CTRLB_DST_INCR_FIXED | DMAC_CTRLB_SRC_INCR_INCREMENTING | BV(DMAC_CTRLB_IEN)); +#define HSMCI_READ_DMAC_CTRLB (BV(DMAC_CTRLB_SRC_DSCR) | BV(DMAC_CTRLB_DST_DSCR) | \ + DMAC_CTRLB_FC_PER2MEM_DMA_FC | \ + DMAC_CTRLB_DST_INCR_INCREMENTING | DMAC_CTRLB_SRC_INCR_FIXED) - ASSERT(!(DMAC_CHSR & BV(DMAC_CHSR_ENA0))); - DMAC_CHER = BV(DMAC_CHER_ENA0); +#define HSMCI_READ_DMAC_CTRLA (DMAC_CTRLA_SRC_WIDTH_WORD | \ + DMAC_CTRLA_DST_WIDTH_WORD) -} -void hsmci_prgRxDMA(uint32_t *buf, size_t word_num, size_t blk_size) +void hsmci_write(const uint32_t *buf, size_t word_num, size_t blk_size) { - hsmci_setBlockSize(blk_size); - - DMAC_CHDR = BV(DMAC_CHDR_DIS0); + HSMCI_DMA |= BV(HSMCI_DMA_DMAEN); + HSMCI_BLKR = (blk_size << HSMCI_BLKR_BLKLEN_SHIFT) & ~0x30000; - DMAC_SADDR0 = (uint32_t)&HSMCI_RDR; - DMAC_DADDR0 = (uint32_t)buf; - DMAC_DSCR0 = 0; + dmac_setSources(HSMCI_DMAC_CH, (uint32_t)buf, (uint32_t)&HSMCI_TDR); + dmac_configureDmac(HSMCI_DMAC_CH, word_num, HSMCI_WRITE_DMAC_CFG, HSMCI_WRITE_DMAC_CTRLA, HSMCI_WRITE_DMAC_CTRLB); + dmac_start(HSMCI_DMAC_CH); +} - DMAC_CFG0 = BV(DMAC_CFG_SRC_H2SEL) | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT); - DMAC_CTRLA0 = (word_num & DMAC_CTRLA_BTSIZE_MASK) | - DMAC_CTRLA_SRC_WIDTH_WORD | DMAC_CTRLA_DST_WIDTH_WORD; - DMAC_CTRLB0 = (BV(DMAC_CTRLB_SRC_DSCR) | BV(DMAC_CTRLB_DST_DSCR) | DMAC_CTRLB_FC_PER2MEM_DMA_FC | - DMAC_CTRLB_DST_INCR_INCREMENTING | DMAC_CTRLB_SRC_INCR_FIXED | BV(DMAC_CTRLB_IEN)); +void hsmci_read(uint32_t *buf, size_t word_num, size_t blk_size) +{ + HSMCI_DMA |= BV(HSMCI_DMA_DMAEN); + HSMCI_BLKR = blk_size << HSMCI_BLKR_BLKLEN_SHIFT; - ASSERT(!(DMAC_CHSR & BV(DMAC_CHSR_ENA0))); - DMAC_CHER = BV(DMAC_CHER_ENA0); + dmac_setSources(HSMCI_DMAC_CH, (uint32_t)&HSMCI_RDR, (uint32_t)buf); + dmac_configureDmac(HSMCI_DMAC_CH, word_num, HSMCI_READ_DMAC_CFG, HSMCI_READ_DMAC_CTRLA, HSMCI_READ_DMAC_CTRLB); + dmac_start(HSMCI_DMAC_CH); } @@ -179,12 +156,12 @@ void hsmci_waitTransfer(void) void hsmci_setSpeed(uint32_t data_rate, int flag) { - if (flag) + if (flag & HSMCI_HS_MODE) HSMCI_CFG |= BV(HSMCI_CFG_HSMODE); else HSMCI_CFG &= ~BV(HSMCI_CFG_HSMODE); - HSMCI_MR = HSMCI_CLK_DIV(data_rate) | ((0x7u << HSMCI_MR_PWSDIV_SHIFT) & HSMCI_MR_PWSDIV_MASK); + HSMCI_MR = HSMCI_CLK_DIV(data_rate); timer_delay(10); } @@ -202,20 +179,11 @@ void hsmci_init(Hsmci *hsmci) HSMCI_DTOR = 0xFF | HSMCI_DTOR_DTOMUL_1048576; HSMCI_CSTOR = 0xFF | HSMCI_CSTOR_CSTOMUL_1048576; - HSMCI_MR = HSMCI_CLK_DIV(HSMCI_INIT_SPEED) | ((0x7u << HSMCI_MR_PWSDIV_SHIFT) & HSMCI_MR_PWSDIV_MASK) | BV(HSMCI_MR_RDPROOF); + HSMCI_MR = HSMCI_CLK_DIV(HSMCI_INIT_SPEED); HSMCI_CFG = BV(HSMCI_CFG_FIFOMODE) | BV(HSMCI_CFG_FERRCTRL); - sysirq_setHandler(INT_HSMCI, hsmci_irq); HSMCI_CR = BV(HSMCI_CR_MCIEN); HSMCI_DMA = 0; - //init DMAC - DMAC_EBCIDR = 0x3FFFFF; - DMAC_CHDR = 0x1F; - - pmc_periphEnable(DMAC_ID); - DMAC_EN = BV(DMAC_EN_ENABLE); - sysirq_setHandler(INT_DMAC, dmac_irq); - - DMAC_EBCIER = BV(DMAC_EBCIER_BTC0) | BV(DMAC_EBCIER_ERR0); + dmac_enableCh(HSMCI_DMAC_CH, NULL); }