97 строки
2.3 KiB
C
97 строки
2.3 KiB
C
#ifndef _AU1XMMC_H_
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#define _AU1XMMC_H_
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/* Hardware definitions */
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#define AU1XMMC_DESCRIPTOR_COUNT 1
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#define AU1XMMC_DESCRIPTOR_SIZE 2048
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#define AU1XMMC_OCR ( MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | \
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MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33 | \
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MMC_VDD_33_34 | MMC_VDD_34_35 | MMC_VDD_35_36)
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/* Easy access macros */
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#define HOST_STATUS(h) ((h)->iobase + SD_STATUS)
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#define HOST_CONFIG(h) ((h)->iobase + SD_CONFIG)
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#define HOST_ENABLE(h) ((h)->iobase + SD_ENABLE)
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#define HOST_TXPORT(h) ((h)->iobase + SD_TXPORT)
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#define HOST_RXPORT(h) ((h)->iobase + SD_RXPORT)
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#define HOST_CMDARG(h) ((h)->iobase + SD_CMDARG)
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#define HOST_BLKSIZE(h) ((h)->iobase + SD_BLKSIZE)
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#define HOST_CMD(h) ((h)->iobase + SD_CMD)
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#define HOST_CONFIG2(h) ((h)->iobase + SD_CONFIG2)
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#define HOST_TIMEOUT(h) ((h)->iobase + SD_TIMEOUT)
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#define HOST_DEBUG(h) ((h)->iobase + SD_DEBUG)
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#define DMA_CHANNEL(h) \
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( ((h)->flags & HOST_F_XMIT) ? (h)->tx_chan : (h)->rx_chan)
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/* This gives us a hard value for the stop command that we can write directly
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* to the command register
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*/
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#define STOP_CMD (SD_CMD_RT_1B|SD_CMD_CT_7|(0xC << SD_CMD_CI_SHIFT)|SD_CMD_GO)
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/* This is the set of interrupts that we configure by default */
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#if 0
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#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | SD_CONFIG_DD | \
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SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
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#endif
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#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | \
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SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
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/* The poll event (looking for insert/remove events runs twice a second */
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#define AU1XMMC_DETECT_TIMEOUT (HZ/2)
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struct au1xmmc_host {
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struct mmc_host *mmc;
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struct mmc_request *mrq;
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u32 id;
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u32 flags;
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u32 iobase;
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u32 clock;
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u32 bus_width;
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u32 power_mode;
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int status;
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struct {
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int len;
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int dir;
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} dma;
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struct {
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int index;
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int offset;
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int len;
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} pio;
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u32 tx_chan;
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u32 rx_chan;
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struct timer_list timer;
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struct tasklet_struct finish_task;
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struct tasklet_struct data_task;
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spinlock_t lock;
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};
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/* Status flags used by the host structure */
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#define HOST_F_XMIT 0x0001
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#define HOST_F_RECV 0x0002
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#define HOST_F_DMA 0x0010
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#define HOST_F_ACTIVE 0x0100
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#define HOST_F_STOP 0x1000
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#define HOST_S_IDLE 0x0001
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#define HOST_S_CMD 0x0002
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#define HOST_S_DATA 0x0003
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#define HOST_S_STOP 0x0004
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#endif
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