X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fcortex-m3%2Fdrv%2Fhsmci_sam3.c;h=9d3356df23c15e66aeef570e5ecaed73ca4d7e18;hb=4229991b9a3b7cc09ef8899e02fb12f7075fe28f;hp=b797f7b5a81753460842e60571bfcc35dcd2ce87;hpb=55574912ce4d7364597388a112805147a9618351;p=bertos.git diff --git a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c index b797f7b5..9d3356df 100644 --- a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c +++ b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c @@ -36,39 +36,19 @@ #include "hsmci_sam3.h" +#include "hw/hw_sd.h" #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; - +#include +#include #define HSMCI_CLK_DIV(RATE) ((CPU_FREQ / (RATE << 1)) - 1) -#define HSMCI_ERROR_MASK (BV(HSMCI_SR_RINDE) | \ - BV(HSMCI_SR_RDIRE) | \ - BV(HSMCI_SR_RCRCE) | \ - BV(HSMCI_SR_RENDE) | \ - BV(HSMCI_SR_RTOE) | \ - BV(HSMCI_SR_DCRCE) | \ - BV(HSMCI_SR_DTOE) | \ - BV(HSMCI_SR_CSTOE) | \ - BV(HSMCI_SR_BLKOVRE) | \ - BV(HSMCI_SR_ACKRCVE)) - #define HSMCI_RESP_ERROR_MASK (BV(HSMCI_SR_RINDE) | BV(HSMCI_SR_RDIRE) \ | BV(HSMCI_SR_RENDE)| BV(HSMCI_SR_RTOE)) @@ -87,22 +67,8 @@ typedef struct DmacDesc cpu_relax(); \ } while (!(HSMCI_SR & BV(HSMCI_SR_RXRDY))) -#define HSMCI_ERROR() (HSMCI_SR & HSMCI_ERROR_MASK) -#define HSMCI_HW_INIT() \ -do { \ - PIOA_PDR = BV(19) | BV(20) | BV(21) | BV(22) | BV(23) | BV(24); \ - PIO_PERIPH_SEL(PIOA_BASE, BV(19) | BV(20) | BV(21) | BV(22) | BV(23) | BV(24), PIO_PERIPH_A); \ -} while (0) - - -#define STROBE_ON() PIOB_SODR = BV(13) -#define STROBE_OFF() PIOB_CODR = BV(13) -#define STROBE_INIT() \ - do { \ - PIOB_OER = BV(13); \ - PIOB_PER = BV(13); \ - } while(0) +#define HSMCI_DMAC_CH 0 static DECLARE_ISR(hsmci_irq) { @@ -113,16 +79,6 @@ static DECLARE_ISR(hsmci_irq) } -static DECLARE_ISR(dmac_irq) -{ - uint32_t stat = DMAC_EBCISR; - - if (stat & BV(DMAC_EBCISR_ERR3)) - { - kprintf("err %08lx\n", stat); - } -} - void hsmci_readResp(uint32_t *resp, size_t len) { ASSERT(resp); @@ -133,7 +89,6 @@ void hsmci_readResp(uint32_t *resp, size_t len) bool hsmci_sendCmd(uint8_t index, uint32_t argument, uint32_t reply_type) { - STROBE_ON(); HSMCI_WAIT(); HSMCI_ARGR = argument; @@ -150,56 +105,39 @@ bool hsmci_sendCmd(uint8_t index, uint32_t argument, uint32_t reply_type) status = HSMCI_SR; } - STROBE_OFF(); return 0; } -INLINE void hsmci_setBlockSize(size_t blk_size) +void hsmci_write(const 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; -} - -void hsmci_prgTxDMA(uint32_t *buf, size_t word_num, size_t blk_size) -{ - - hsmci_setBlockSize(blk_size); - - DMAC_CHDR = BV(DMAC_CHDR_DIS0); - - DMAC_SADDR0 = (uint32_t)buf; - DMAC_DADDR0 = (uint32_t)&HSMCI_TDR; - DMAC_DSCR0 = 0; - - 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)); - ASSERT(!(DMAC_CHSR & BV(DMAC_CHSR_ENA0))); - DMAC_CHER = BV(DMAC_CHER_ENA0); + uint32_t cfg = BV(DMAC_CFG_DST_H2SEL); + uint32_t ctrla = DMAC_CTRLA_SRC_WIDTH_WORD | DMAC_CTRLA_DST_WIDTH_WORD; + uint32_t 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_setSources(HSMCI_DMAC_CH, (uint32_t)buf, (uint32_t)&HSMCI_TDR); + dmac_configureDmac(HSMCI_DMAC_CH, word_num, cfg, ctrla, ctrlb); + dmac_start(HSMCI_DMAC_CH); } -void hsmci_prgRxDMA(uint32_t *buf, size_t word_num, size_t blk_size) +void hsmci_read(uint32_t *buf, size_t word_num, size_t blk_size) { - hsmci_setBlockSize(blk_size); - - DMAC_CHDR = BV(DMAC_CHDR_DIS0); - - DMAC_SADDR0 = (uint32_t)&HSMCI_RDR; - DMAC_DADDR0 = (uint32_t)buf; - DMAC_DSCR0 = 0; + HSMCI_DMA |= BV(HSMCI_DMA_DMAEN); + HSMCI_BLKR = blk_size << HSMCI_BLKR_BLKLEN_SHIFT; - 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)); + uint32_t cfg = BV(DMAC_CFG_SRC_H2SEL); + uint32_t ctrla = DMAC_CTRLA_SRC_WIDTH_WORD | DMAC_CTRLA_DST_WIDTH_WORD; + uint32_t 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); + dmac_setSources(HSMCI_DMAC_CH, (uint32_t)&HSMCI_RDR, (uint32_t)buf); + dmac_configureDmac(HSMCI_DMAC_CH, word_num, cfg, ctrla, ctrlb); + dmac_start(HSMCI_DMAC_CH); } @@ -211,7 +149,7 @@ 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); @@ -225,8 +163,7 @@ void hsmci_init(Hsmci *hsmci) { (void)hsmci; - HSMCI_HW_INIT(); - STROBE_INIT(); + SD_PIN_INIT(); pmc_periphEnable(HSMCI_ID); HSMCI_CR = BV(HSMCI_CR_SWRST); @@ -242,14 +179,5 @@ void hsmci_init(Hsmci *hsmci) 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); }