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@@ -0,0 +1,1273 @@
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+/*
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+ * File : sdio.c
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+ * This file is part of RT-Thread RTOS
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+ * COPYRIGHT (C) 2006, RT-Thread Development Team
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+ *
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+ * The license and distribution terms for this file may be
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+ * found in the file LICENSE in this distribution or at
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+ * http://www.rt-thread.org/license/LICENSE
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+ *
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+ * Change Logs:
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+ * Date Author Notes
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+ * 2012-01-13 weety first version
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+ */
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+
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+#include "mmcsd_core.h"
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+#include "mmcsd_cmd.h"
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+#include "list.h"
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+
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+#ifndef RT_SDIO_STACK_SIZE
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+#define RT_SDIO_STACK_SIZE 512
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+#endif
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+#ifndef RT_SDIO_THREAD_PREORITY
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+#define RT_SDIO_THREAD_PREORITY 0x40
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+#endif
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+
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+static rt_list_t sdio_cards;
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+static rt_list_t sdio_drivers;
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+
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+struct sdio_card {
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+ struct rt_mmcsd_card *card;
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+ rt_list_t list;
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+};
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+
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+struct sdio_driver {
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+ struct rt_sdio_driver *drv;
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+ rt_list_t list;
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+};
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+
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+#define MIN(a, b) (a < b ? a : b)
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+
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+static const rt_uint8_t speed_value[16] =
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+ { 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 };
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+
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+static const rt_uint32_t speed_unit[8] =
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+ { 10000, 100000, 1000000, 10000000, 0, 0, 0, 0 };
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+
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+rt_int32_t sdio_io_send_op_cond(struct rt_mmcsd_host *host, rt_uint32_t ocr, rt_uint32_t
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+*cmd5_resp)
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+{
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+ struct rt_mmcsd_cmd cmd;
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+ rt_int32_t i, err = 0;
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+
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+ RT_ASSERT(host != RT_NULL);
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+
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+ rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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+
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+ cmd.cmd_code = SD_IO_SEND_OP_COND;
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+ cmd.arg = ocr;
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+ cmd.flags = RESP_SPI_R4 | RESP_R4 | CMD_BCR;
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+
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+ for (i = 100; i; i--)
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+ {
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+ err = mmcsd_send_cmd(host, &cmd, 0);
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+ if (err)
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+ break;
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+
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+ /* if we're just probing, do a single pass */
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+ if (ocr == 0)
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+ break;
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+
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+ /* otherwise wait until reset completes */
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+ if (controller_is_spi(host))
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+ {
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+ /*
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+ * Both R1_SPI_IDLE and MMC_CARD_BUSY indicate
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+ * an initialized card under SPI, but some cards
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+ * (Marvell's) only behave when looking at this
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+ * one.
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+ */
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+ if (cmd.resp[1] & CARD_BUSY)
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+ break;
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+ }
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+ else
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+ {
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+ if (cmd.resp[0] & CARD_BUSY)
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+ break;
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+ }
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+
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+ err = -RT_ETIMEOUT;
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+
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+ mmcsd_delay_ms(10);
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+ }
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+
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+ if (cmd5_resp)
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+ *cmd5_resp = cmd.resp[controller_is_spi(host) ? 1 : 0];
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+
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+ return err;
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+}
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+
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+
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+rt_int32_t sdio_io_rw_direct(struct rt_mmcsd_card *card, rt_int32_t rw, rt_uint32_t fn,
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+ rt_uint32_t reg_addr, rt_uint8_t *pdata, rt_uint8_t raw)
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+{
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+ struct rt_mmcsd_cmd cmd;
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+ rt_int32_t err;
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+
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+ RT_ASSERT(card != RT_NULL);
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+ RT_ASSERT(fn <= SDIO_MAX_FUNCTIONS);
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+
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+ if (reg_addr & ~SDIO_ARG_CMD53_REG_MASK)
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+ return -RT_ERROR;
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+
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+ rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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+
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+ cmd.cmd_code = SD_IO_RW_DIRECT;
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+ cmd.arg = rw ? SDIO_ARG_CMD52_WRITE : SDIO_ARG_CMD52_READ;
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+ cmd.arg |= fn << SDIO_ARG_CMD52_FUNC_SHIFT;
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+ cmd.arg |= raw ? SDIO_ARG_CMD52_RAW_FLAG : 0x00000000;
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+ cmd.arg |= reg_addr << SDIO_ARG_CMD52_REG_SHIFT;
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+ cmd.arg |= *pdata;
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+ cmd.flags = RESP_SPI_R5 | RESP_R5 | CMD_AC;
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+
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+ err = mmcsd_send_cmd(card->host, &cmd, 0);
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+ if (err)
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+ return err;
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+
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+ if (!controller_is_spi(card->host))
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+ {
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+ if (cmd.resp[0] & R5_ERROR)
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+ return -RT_EIO;
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+ if (cmd.resp[0] & R5_FUNCTION_NUMBER)
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+ return -RT_ERROR;
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+ if (cmd.resp[0] & R5_OUT_OF_RANGE)
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+ return -RT_ERROR;
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+ }
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+
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+ if (!rw || raw)
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+ {
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+ if (controller_is_spi(card->host))
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+ *pdata = (cmd.resp[0] >> 8) & 0xFF;
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+ else
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+ *pdata = cmd.resp[0] & 0xFF;
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+ }
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+
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+ return 0;
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+}
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+
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+rt_int32_t sdio_io_rw_extended(struct rt_mmcsd_card *card, rt_int32_t rw, rt_uint32_t fn,
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+ rt_uint32_t addr, rt_int32_t op_code, rt_uint8_t *buf, rt_uint32_t blocks, rt_uint32_t blksize)
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+{
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+ struct rt_mmcsd_req req;
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+ struct rt_mmcsd_cmd cmd;
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+ struct rt_mmcsd_data data;
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+
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+ RT_ASSERT(card != RT_NULL);
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+ RT_ASSERT(fn <= SDIO_MAX_FUNCTIONS);
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+ RT_ASSERT(blocks != 1 || blksize <= 512);
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+ RT_ASSERT(blocks != 0);
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+ RT_ASSERT(blksize != 0);
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+
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+ if (addr & ~SDIO_ARG_CMD53_REG_MASK)
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+ return -RT_ERROR;
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+
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+ rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
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+ rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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+ rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
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+
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+ req.cmd = &cmd;
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+ req.data = &data;
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+
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+ cmd.cmd_code = SD_IO_RW_EXTENDED;
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+ cmd.arg = rw ? SDIO_ARG_CMD53_WRITE : SDIO_ARG_CMD53_READ;
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+ cmd.arg |= fn << SDIO_ARG_CMD53_FUNC_SHIFT;
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+ cmd.arg |= op_code ? SDIO_ARG_CMD53_INCREMENT : 0x00000000;
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+ cmd.arg |= addr << SDIO_ARG_CMD53_REG_SHIFT;
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+ if (blocks == 1 && blksize <= 512)
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+ cmd.arg |= (blksize == 512) ? 0 : blksize; /* byte mode */
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+ else
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+ cmd.arg |= SDIO_ARG_CMD53_BLOCK_MODE | blocks; /* block mode */
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+ cmd.flags = RESP_SPI_R5 | RESP_R5 | CMD_ADTC;
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+
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+ data.blksize = blksize;
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+ data.blks = blocks;
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+ data.flags = rw ? DATA_DIR_WRITE : DATA_DIR_READ;
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+ data.buf = (rt_uint32_t *)buf;
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+
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+ mmcsd_set_data_timeout(&data, card);
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+
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+ mmcsd_send_request(card->host, &req);
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+
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+ if (cmd.err)
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+ return cmd.err;
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+ if (data.err)
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+ return data.err;
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+
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+ if (!controller_is_spi(card->host))
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+ {
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+ if (cmd.resp[0] & R5_ERROR)
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+ return -RT_EIO;
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+ if (cmd.resp[0] & R5_FUNCTION_NUMBER)
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+ return -RT_ERROR;
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+ if (cmd.resp[0] & R5_OUT_OF_RANGE)
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+ return -RT_ERROR;
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+ }
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+
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+ return 0;
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+}
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+
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+rt_inline rt_uint32_t sdio_max_block_size(struct rt_sdio_function *func)
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+{
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+ rt_uint32_t size = MIN(func->card->host->max_seg_size,
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+ func->card->host->max_blk_size);
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+ size = MIN(size, func->max_blk_size);
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+ return MIN(size, 512u); /* maximum size for byte mode */
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+}
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+
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+static rt_int32_t sdio_io_rw_extended_block(struct rt_sdio_function *func, rt_int32_t rw,
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+ rt_uint32_t addr, rt_int32_t op_code, rt_uint8_t *buf, rt_uint32_t len)
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+{
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+ rt_int32_t ret;
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+ rt_uint32_t left_size;
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+ rt_uint32_t max_blks, blks;
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+
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+ left_size = len;
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+
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+ /* Do the bulk of the transfer using block mode (if supported). */
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+ if (func->card->cccr.multi_block && (len > sdio_max_block_size(func))) {
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+ max_blks = MIN(func->card->host->max_blk_count,
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+ func->card->host->max_seg_size / func->cur_blk_size);
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+ max_blks = MIN(max_blks, 511u);
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+
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+ while (left_size > func->cur_blk_size) {
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+
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+ blks = left_size / func->cur_blk_size;
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+ if (blks > max_blks)
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+ blks = max_blks;
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+ len = blks * func->cur_blk_size;
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+
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+ ret = sdio_io_rw_extended(func->card, rw, func->num,
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+ addr, op_code, buf, blks, func->cur_blk_size);
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+ if (ret)
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+ return ret;
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+
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+ left_size -= len;
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+ buf += len;
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+ if (op_code)
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+ addr += len;
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+ }
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+ }
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+
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+ while (left_size > 0) {
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+ len = MIN(left_size, sdio_max_block_size(func));
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+
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+ ret = sdio_io_rw_extended(func->card, rw, func->num,
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+ addr, op_code, buf, 1, len);
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+ if (ret)
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+ return ret;
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+
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+ left_size -= len;
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+ buf += len;
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+ if (op_code)
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+ addr += len;
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+ }
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+
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+ return 0;
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+}
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+
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+
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+rt_uint8_t sdio_io_readb(struct rt_sdio_function *func,
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+ rt_uint32_t reg, rt_int32_t *err)
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+{
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+ rt_uint8_t data;
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+ rt_int32_t ret;
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+
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+ ret = sdio_io_rw_direct(func->card, 0, func->num, reg, &data, 0);
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+
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+ if (err)
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+ {
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+ *err = ret;
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+ }
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+
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+ return data;
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+}
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+
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+rt_int32_t sdio_io_writeb(struct rt_sdio_function *func,
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+ rt_uint32_t reg, rt_uint8_t data)
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+{
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+ return sdio_io_rw_direct(func->card, 1, func->num, reg, &data, 0);
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+}
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+
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+rt_uint16_t sdio_io_readw(struct rt_sdio_function *func, rt_uint32_t addr, rt_int32_t *err)
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+{
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+ rt_int32_t ret;
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+ rt_uint32_t dmabuf;
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+
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+ if (err)
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+ *err = 0;
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+
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+ ret = sdio_io_rw_extended_block(func, 0, addr, 1, (rt_uint8_t *)&dmabuf, 2);
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+ if (ret)
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+ {
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+ if (err)
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+ *err = ret;
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+ }
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+
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+ return (rt_uint16_t)dmabuf;
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+}
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+
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+rt_int32_t sdio_io_writew(struct rt_sdio_function *func, rt_uint16_t data, rt_uint32_t addr)
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+{
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+ rt_uint32_t dmabuf = data;
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+
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+ return sdio_io_rw_extended_block(func, 1, addr, 1, (rt_uint8_t *)&dmabuf, 2);
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+}
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+
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+rt_int32_t sdio_io_read_multi_fifo_1(struct rt_sdio_function *func,
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+ rt_uint32_t addr, rt_uint8_t *buf, rt_uint32_t len)
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+{
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+ return sdio_io_rw_extended_block(func, 0, addr, 0, buf, len);
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+}
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+
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+rt_int32_t sdio_io_write_multi_fifo_1(struct rt_sdio_function *func,
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+ rt_uint32_t addr, rt_uint8_t *buf, rt_uint32_t len)
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+{
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+ return sdio_io_rw_extended_block(func, 1, addr, 0, buf, len);
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+}
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+
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+
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+
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+static rt_int32_t sdio_read_cccr(struct rt_mmcsd_card *card)
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+{
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+ rt_int32_t ret;
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+ rt_int32_t cccr_version;
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+ rt_uint8_t data;
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+
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+ rt_memset(&card->cccr, 0, sizeof(struct rt_sdio_cccr));
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+
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+ data = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_CCCR_REV, &ret);
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+ if (ret)
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+ goto out;
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+
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+ cccr_version = data & 0x0f;
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+
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+ if (cccr_version > SDIO_CCCR_REV_1_20)
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+ {
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+ rt_kprintf("unrecognised CCCR structure version %d\n", cccr_version);
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+ return -RT_ERROR;
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+ }
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+
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+ card->cccr.sdio_version = (data & 0xf0) >> 4;
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+
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+ data = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_CARD_CAPS, &ret);
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+ if (ret)
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+ goto out;
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+
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+ if (data & SDIO_CCCR_CAP_SMB)
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+ card->cccr.multi_block = 1;
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+ if (data & SDIO_CCCR_CAP_LSC)
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+ card->cccr.low_speed = 1;
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+ if (data & SDIO_CCCR_CAP_4BLS)
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+ card->cccr.wide_bus = 1;
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+
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+ if (cccr_version >= SDIO_CCCR_REV_1_10)
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+ {
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+ data = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_POWER_CTRL, &ret);
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+ if (ret)
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+ goto out;
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+
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+ if (data & SDIO_POWER_SMPC)
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+ card->cccr.high_power = 1;
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+ }
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+
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+ if (cccr_version >= SDIO_CCCR_REV_1_20)
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+ {
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+ data = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_SPEED, &ret);
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+ if (ret)
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+ goto out;
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+
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+ if (data & SDIO_SPEED_SHS)
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+ card->cccr.high_speed = 1;
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+ }
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+
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+out:
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+ return ret;
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+}
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+
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+static rt_int32_t cistpl_funce_func0(struct rt_mmcsd_card *card,
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+ const rt_uint8_t *buf, rt_uint32_t size)
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+{
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+ if (size < 0x04 || buf[0] != 0)
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+ return -RT_ERROR;
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+
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|
+ /* TPLFE_FN0_BLK_SIZE */
|
|
|
+ card->cis.func0_blk_size = buf[1] | (buf[2] << 8);
|
|
|
+
|
|
|
+ /* TPLFE_MAX_TRAN_SPEED */
|
|
|
+ card->cis.max_tran_speed = speed_value[(buf[3] >> 3) & 15] *
|
|
|
+ speed_unit[buf[3] & 7];
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static rt_int32_t cistpl_funce_func(struct rt_sdio_function *func,
|
|
|
+ const rt_uint8_t *buf, rt_uint32_t size)
|
|
|
+{
|
|
|
+ rt_uint32_t version;
|
|
|
+ rt_uint32_t min_size;
|
|
|
+
|
|
|
+ version = func->card->cccr.sdio_version;
|
|
|
+ min_size = (version == SDIO_SDIO_REV_1_00) ? 28 : 42;
|
|
|
+
|
|
|
+ if (size < min_size || buf[0] != 1)
|
|
|
+ return -RT_ERROR;
|
|
|
+
|
|
|
+ /* TPLFE_MAX_BLK_SIZE */
|
|
|
+ func->max_blk_size = buf[12] | (buf[13] << 8);
|
|
|
+
|
|
|
+ /* TPLFE_ENABLE_TIMEOUT_VAL, present in ver 1.1 and above */
|
|
|
+ if (version > SDIO_SDIO_REV_1_00)
|
|
|
+ func->enable_timeout_val = (buf[28] | (buf[29] << 8)) * 10;
|
|
|
+ else
|
|
|
+ func->enable_timeout_val = 1000; /* 1000ms */
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static rt_int32_t sdio_read_cis(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ struct rt_sdio_function_tuple *curr, **prev;
|
|
|
+ rt_uint32_t i, cisptr = 0;
|
|
|
+ rt_uint8_t data;
|
|
|
+ rt_uint8_t tpl_code, tpl_link;
|
|
|
+
|
|
|
+ struct rt_mmcsd_card *card = func->card;
|
|
|
+ struct rt_sdio_function *func0 = card->sdio_func0;
|
|
|
+
|
|
|
+ RT_ASSERT(func0 != RT_NULL);
|
|
|
+
|
|
|
+ for (i = 0; i < 3; i++)
|
|
|
+ {
|
|
|
+ data = sdio_io_readb(func,
|
|
|
+ SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_CIS + i, &ret);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+ cisptr |= data << (i * 8);
|
|
|
+ }
|
|
|
+
|
|
|
+ prev = &func->tuples;
|
|
|
+
|
|
|
+ do {
|
|
|
+ tpl_code = sdio_io_readb(func0, cisptr++, &ret);
|
|
|
+ if (ret)
|
|
|
+ break;
|
|
|
+ tpl_link = sdio_io_readb(func0, cisptr++, &ret);
|
|
|
+ if (ret)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if ((tpl_code == CISTPL_END) || (tpl_link == 0xff))
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (tpl_code == CISTPL_NULL)
|
|
|
+ continue;
|
|
|
+
|
|
|
+
|
|
|
+ curr = rt_malloc(sizeof(struct rt_sdio_function_tuple) + tpl_link);
|
|
|
+ if (!curr)
|
|
|
+ return -RT_ENOMEM;
|
|
|
+ curr->data = (rt_uint8_t *)curr + sizeof(struct rt_sdio_function_tuple);
|
|
|
+
|
|
|
+ for (i = 0; i < tpl_link; i++)
|
|
|
+ {
|
|
|
+ curr->data[i] = sdio_io_readb(func0, cisptr + i, &ret);
|
|
|
+ if (ret)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (ret)
|
|
|
+ {
|
|
|
+ rt_free(curr);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ switch (tpl_code)
|
|
|
+ {
|
|
|
+ case CISTPL_MANFID:
|
|
|
+ if (tpl_link < 4)
|
|
|
+ {
|
|
|
+ rt_kprintf("bad CISTPL_MANFID length\n");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (func->num != 0)
|
|
|
+ {
|
|
|
+ func->manufacturer = curr->data[0];
|
|
|
+ func->manufacturer = curr->data[1] << 8;
|
|
|
+ func->product = curr->data[2];
|
|
|
+ func->product = curr->data[3] << 8;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ card->cis.manufacturer = curr->data[0];
|
|
|
+ card->cis.manufacturer = curr->data[1] << 8;
|
|
|
+ card->cis.product = curr->data[2];
|
|
|
+ card->cis.product = curr->data[3] << 8;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case CISTPL_FUNCE:
|
|
|
+ if (func->num != 0)
|
|
|
+ ret = cistpl_funce_func(func, curr->data, tpl_link);
|
|
|
+ else
|
|
|
+ ret = cistpl_funce_func0(card, curr->data, tpl_link);
|
|
|
+
|
|
|
+ if (ret)
|
|
|
+ {
|
|
|
+ rt_kprintf("bad CISTPL_FUNCE size %u "
|
|
|
+ "type %u\n", tpl_link, curr->data[0]);
|
|
|
+ }
|
|
|
+
|
|
|
+ break;
|
|
|
+ case CISTPL_VERS_1:
|
|
|
+ if (tpl_link < 2)
|
|
|
+ {
|
|
|
+ rt_kprintf("CISTPL_VERS_1 too short\n");
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ /* this tuple is unknown to the core */
|
|
|
+ curr->next = RT_NULL;
|
|
|
+ curr->code = tpl_code;
|
|
|
+ curr->size = tpl_link;
|
|
|
+ *prev = curr;
|
|
|
+ prev = &curr->next;
|
|
|
+ rt_kprintf( "CIS tuple code %#x, length %d\n",
|
|
|
+ tpl_code, tpl_link);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ cisptr += tpl_link;
|
|
|
+ } while (1);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Link in all unknown tuples found in the common CIS so that
|
|
|
+ * drivers don't have to go digging in two places.
|
|
|
+ */
|
|
|
+ if (func->num != 0)
|
|
|
+ *prev = func0->tuples;
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+void sdio_free_cis(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ struct rt_sdio_function_tuple *tuple, *tmp;
|
|
|
+ struct rt_mmcsd_card *card = func->card;
|
|
|
+
|
|
|
+ tuple = func->tuples;
|
|
|
+
|
|
|
+ while (tuple && ((tuple != card->sdio_func0->tuples) || (!func->num)))
|
|
|
+ {
|
|
|
+ tmp = tuple;
|
|
|
+ tuple = tuple->next;
|
|
|
+ rt_free(tmp);
|
|
|
+ }
|
|
|
+
|
|
|
+ func->tuples = RT_NULL;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+static rt_int32_t sdio_read_fbr(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t data;
|
|
|
+
|
|
|
+ data = sdio_io_readb(func,
|
|
|
+ SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_STD_FUNC_IF, &ret);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ data &= 0x0f;
|
|
|
+
|
|
|
+ if (data == 0x0f)
|
|
|
+ {
|
|
|
+ data = sdio_io_readb(func,
|
|
|
+ SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_STD_IF_EXT, &ret);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+
|
|
|
+ func->func_code = data;
|
|
|
+
|
|
|
+err:
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static rt_int32_t sdio_initialize_function(struct rt_mmcsd_card *card, rt_uint32_t func_num)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ struct rt_sdio_function *func;
|
|
|
+
|
|
|
+ RT_ASSERT(func_num <= SDIO_MAX_FUNCTIONS);
|
|
|
+
|
|
|
+ func = rt_malloc(sizeof(struct rt_sdio_function));
|
|
|
+ if (!func)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc rt_sdio_function failed\n");
|
|
|
+ ret = -RT_ENOMEM;
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+ rt_memset(func, 0, sizeof(struct rt_sdio_function));
|
|
|
+
|
|
|
+ func->num = func_num;
|
|
|
+
|
|
|
+ ret = sdio_read_fbr(func);
|
|
|
+ if (ret)
|
|
|
+ goto err1;
|
|
|
+
|
|
|
+ ret = sdio_read_cis(func);
|
|
|
+ if (ret)
|
|
|
+ goto err1;
|
|
|
+
|
|
|
+ card->sdio_function[func_num - 1] = func;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err1:
|
|
|
+ sdio_free_cis(func);
|
|
|
+ rt_free(func);
|
|
|
+ card->sdio_function[func_num - 1] = RT_NULL;
|
|
|
+err:
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static rt_int32_t sdio_set_highspeed(struct rt_mmcsd_card *card)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t speed;
|
|
|
+
|
|
|
+ if (!(card->host->flags & MMCSD_SUP_HIGHSPEED))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (!card->cccr.high_speed)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ speed = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_SPEED, &ret);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ speed |= SDIO_SPEED_EHS;
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(card->sdio_func0, SDIO_REG_CCCR_SPEED, speed);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ card->flags |= CARD_FLAG_HIGHSPEED;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static rt_int32_t sdio_set_bus_wide(struct rt_mmcsd_card *card)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t busif;
|
|
|
+
|
|
|
+ if (!(card->host->flags & MMCSD_BUSWIDTH_4))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (card->cccr.low_speed && !card->cccr.wide_bus)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ busif = sdio_io_readb(card->sdio_func0, SDIO_REG_CCCR_BUS_IF, &ret);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ busif |= SDIO_BUS_WIDTH_4BIT;
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(card->sdio_func0, SDIO_REG_CCCR_BUS_IF, busif);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ mmcsd_set_bus_width(card->host, MMCSD_BUS_WIDTH_4);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static rt_int32_t sdio_register_card(struct rt_mmcsd_card *card)
|
|
|
+{
|
|
|
+ struct sdio_card *sc;
|
|
|
+
|
|
|
+ sc = rt_malloc(sizeof(struct sdio_card));
|
|
|
+ if (sc == RT_NULL)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc sdio card failed\n");
|
|
|
+ return -RT_ENOMEM;
|
|
|
+ }
|
|
|
+ list_insert_after(&sdio_cards, &sc->list);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static rt_int32_t sdio_init_card(struct rt_mmcsd_host *host, rt_uint32_t ocr)
|
|
|
+{
|
|
|
+ rt_int32_t err = 0;
|
|
|
+ rt_int32_t i, function_num;
|
|
|
+ rt_uint32_t cmd5_resp;
|
|
|
+ struct rt_mmcsd_card *card;
|
|
|
+
|
|
|
+ err = sdio_io_send_op_cond(host, ocr, &cmd5_resp);
|
|
|
+ if (err)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ if (controller_is_spi(host))
|
|
|
+ {
|
|
|
+ err = mmcsd_spi_use_crc(host, host->spi_use_crc);
|
|
|
+ if (err)
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+
|
|
|
+ function_num = (cmd5_resp & 0x70000000) >> 28;
|
|
|
+
|
|
|
+ card = rt_malloc(sizeof(struct rt_mmcsd_card));
|
|
|
+ if (!card)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc card failed\n");
|
|
|
+ err = -RT_ENOMEM;
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+ rt_memset(card, 0, sizeof(struct rt_mmcsd_card));
|
|
|
+
|
|
|
+ card->card_type = CARD_TYPE_SDIO;
|
|
|
+ card->sdio_function_num = function_num;
|
|
|
+ card->host = host;
|
|
|
+ host->card = card;
|
|
|
+
|
|
|
+ card->sdio_func0 = rt_malloc(sizeof(struct rt_sdio_function));
|
|
|
+ if (!card->sdio_func0)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc sdio_func0 failed\n");
|
|
|
+ err = -RT_ENOMEM;
|
|
|
+ goto err1;
|
|
|
+ }
|
|
|
+ rt_memset(card->sdio_func0, 0, sizeof(struct rt_sdio_function));
|
|
|
+ card->sdio_func0->card = card;
|
|
|
+ card->sdio_func0->num = 0;
|
|
|
+
|
|
|
+ if (!controller_is_spi(host))
|
|
|
+ {
|
|
|
+ err = mmcsd_get_card_addr(host, &card->rca);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+
|
|
|
+ mmcsd_set_bus_mode(host, MMCSD_BUSMODE_PUSHPULL);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!controller_is_spi(host))
|
|
|
+ {
|
|
|
+ err = mmcsd_select_card(card);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = sdio_read_cccr(card);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+
|
|
|
+ err = sdio_read_cis(card->sdio_func0);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+
|
|
|
+ err = sdio_set_highspeed(card);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+
|
|
|
+ if (card->flags & CARD_FLAG_HIGHSPEED)
|
|
|
+ {
|
|
|
+ mmcsd_set_clock(host, 50000000);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ mmcsd_set_clock(host, card->cis.max_tran_speed);
|
|
|
+ }
|
|
|
+
|
|
|
+ err = sdio_set_bus_wide(card);
|
|
|
+ if (err)
|
|
|
+ goto err2;
|
|
|
+
|
|
|
+ for (i = 0; i < function_num; i++)
|
|
|
+ {
|
|
|
+ err = sdio_initialize_function(card, i + 1);
|
|
|
+ if (err)
|
|
|
+ goto err3;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ /* register sdio card */
|
|
|
+ err = sdio_register_card(card);
|
|
|
+ if (err)
|
|
|
+ {
|
|
|
+ goto err3;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err3:
|
|
|
+ if (host->card)
|
|
|
+ {
|
|
|
+ for (i = 0; i < host->card->sdio_function_num; i++)
|
|
|
+ {
|
|
|
+ if (host->card->sdio_function[i])
|
|
|
+ {
|
|
|
+ sdio_free_cis(host->card->sdio_function[i]);
|
|
|
+ rt_free(host->card->sdio_function[i]);
|
|
|
+ host->card->sdio_function[i] = RT_NULL;
|
|
|
+ rt_free(host->card);
|
|
|
+ host->card = RT_NULL;
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+err2:
|
|
|
+ if (host->card && host->card->sdio_func0)
|
|
|
+ {
|
|
|
+ sdio_free_cis(host->card->sdio_func0);
|
|
|
+ rt_free(host->card->sdio_func0);
|
|
|
+ host->card->sdio_func0 = RT_NULL;
|
|
|
+ }
|
|
|
+err1:
|
|
|
+ if (host->card)
|
|
|
+ {
|
|
|
+ rt_free(host->card);
|
|
|
+ }
|
|
|
+err:
|
|
|
+ rt_kprintf("error %d while initialising SDIO card\n", err);
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+rt_int32_t init_sdio(struct rt_mmcsd_host *host, rt_uint32_t ocr)
|
|
|
+{
|
|
|
+ rt_int32_t err;
|
|
|
+ rt_uint32_t current_ocr;
|
|
|
+
|
|
|
+ RT_ASSERT(host != RT_NULL);
|
|
|
+
|
|
|
+ if (ocr & 0x7F)
|
|
|
+ {
|
|
|
+ rt_kprintf("Card ocr below the defined voltage rang.\n");
|
|
|
+ ocr &= ~0x7F;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (ocr & VDD_165_195)
|
|
|
+ {
|
|
|
+ rt_kprintf("Can't support the low voltage SDIO card.\n");
|
|
|
+ ocr &= ~VDD_165_195;
|
|
|
+ }
|
|
|
+
|
|
|
+ current_ocr = mmcsd_select_voltage(host, ocr);
|
|
|
+
|
|
|
+ if (!current_ocr)
|
|
|
+ {
|
|
|
+ err = -RT_ERROR;
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = sdio_init_card(host, current_ocr);
|
|
|
+ if (err)
|
|
|
+ goto remove_card;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+remove_card:
|
|
|
+ rt_free(host->card);
|
|
|
+ host->card = RT_NULL;
|
|
|
+err:
|
|
|
+
|
|
|
+ rt_kprintf("init SDIO card failed\n");
|
|
|
+
|
|
|
+ return err;
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static void sdio_irq_thread(void *param)
|
|
|
+{
|
|
|
+ rt_int32_t i, ret;
|
|
|
+ rt_uint8_t pending;
|
|
|
+ struct rt_mmcsd_card *card;
|
|
|
+ struct rt_mmcsd_host *host = (struct rt_mmcsd_host *)param;
|
|
|
+ RT_ASSERT(host != RT_NULL);
|
|
|
+ card = host->card;
|
|
|
+ RT_ASSERT(card != RT_NULL);
|
|
|
+
|
|
|
+ while (1)
|
|
|
+ {
|
|
|
+ if (rt_sem_take(host->sdio_irq_sem, RT_WAITING_FOREVER) == RT_EOK)
|
|
|
+ {
|
|
|
+ mmcsd_host_lock(host);
|
|
|
+ pending = sdio_io_readb(host->card->sdio_func0,
|
|
|
+ SDIO_REG_CCCR_INT_PEND, &ret);
|
|
|
+ if (ret)
|
|
|
+ {
|
|
|
+ mmcsd_dbg("error %d reading SDIO_REG_CCCR_INT_PEND\n", ret);
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (i = 1; i <= 7; i++)
|
|
|
+ {
|
|
|
+ if (pending & (1 << i))
|
|
|
+ {
|
|
|
+ struct rt_sdio_function *func = card->sdio_function[i - 1];
|
|
|
+ if (!func)
|
|
|
+ {
|
|
|
+ mmcsd_dbg("pending IRQ for "
|
|
|
+ "non-existant function %d\n", func->num);
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ else if (func->irq_handler)
|
|
|
+ {
|
|
|
+ func->irq_handler(func);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ mmcsd_dbg("pending IRQ with no register handler\n");
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ out:
|
|
|
+ mmcsd_host_unlock(host);
|
|
|
+ if (host->flags & MMCSD_SUP_SDIO_IRQ)
|
|
|
+ host->ops->enable_sdio_irq(host, 1);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static rt_int32_t sdio_irq_thread_create(struct rt_mmcsd_card *card)
|
|
|
+{
|
|
|
+ struct rt_mmcsd_host *host = card->host;
|
|
|
+
|
|
|
+ /* init semaphore and create sdio irq processing thread */
|
|
|
+ if (!host->sdio_irq_num)
|
|
|
+ {
|
|
|
+ host->sdio_irq_num++;
|
|
|
+ host->sdio_irq_sem = rt_sem_create("sdio_irq", 0, RT_IPC_FLAG_FIFO);
|
|
|
+ RT_ASSERT(host->sdio_irq_sem != RT_NULL);
|
|
|
+
|
|
|
+ host->sdio_irq_thread = rt_thread_create("sdio_irq", sdio_irq_thread, host,
|
|
|
+ RT_SDIO_STACK_SIZE, RT_SDIO_THREAD_PREORITY, 20);
|
|
|
+ if (host->sdio_irq_thread != RT_NULL)
|
|
|
+ {
|
|
|
+ rt_thread_startup(host->sdio_irq_thread);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static rt_int32_t sdio_irq_thread_delete(struct rt_mmcsd_card *card)
|
|
|
+{
|
|
|
+ struct rt_mmcsd_host *host = card->host;
|
|
|
+
|
|
|
+ RT_ASSERT(host->sdio_irq_num > 0);
|
|
|
+
|
|
|
+ host->sdio_irq_num--;
|
|
|
+ if (!host->sdio_irq_num)
|
|
|
+ {
|
|
|
+ if (host->flags & MMCSD_SUP_SDIO_IRQ)
|
|
|
+ host->ops->enable_sdio_irq(host, 0);
|
|
|
+ rt_sem_delete(host->sdio_irq_sem);
|
|
|
+ host->sdio_irq_sem = RT_NULL;
|
|
|
+ rt_thread_delete(host->sdio_irq_thread);
|
|
|
+ host->sdio_irq_thread = RT_NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+rt_int32_t sdio_attach_irq(struct rt_sdio_function *func, rt_sdio_irq_handler_t *handler)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t reg;
|
|
|
+
|
|
|
+ RT_ASSERT(func != RT_NULL);
|
|
|
+ RT_ASSERT(func->card != RT_NULL);
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: enabling IRQ for function %d\n", func->num);
|
|
|
+
|
|
|
+ if (func->irq_handler)
|
|
|
+ {
|
|
|
+ mmcsd_dbg("SDIO: IRQ for already in use.\n");
|
|
|
+ return -RT_EBUSY;
|
|
|
+ }
|
|
|
+
|
|
|
+ reg = sdio_io_readb(func, SDIO_REG_CCCR_INT_EN, &ret);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ reg |= 1 << func->num;
|
|
|
+
|
|
|
+ reg |= 1; /* Master interrupt enable */
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_CCCR_INT_EN, reg);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ func->irq_handler = handler;
|
|
|
+
|
|
|
+ ret = sdio_irq_thread_create(func->card);
|
|
|
+ if (ret)
|
|
|
+ func->irq_handler = RT_NULL;
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+rt_int32_t sdio_detach_irq(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t reg;
|
|
|
+
|
|
|
+ RT_ASSERT(func != RT_NULL);
|
|
|
+ RT_ASSERT(func->card != RT_NULL);
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: disabling IRQ for function %d\n", func->num);
|
|
|
+
|
|
|
+ if (func->irq_handler)
|
|
|
+ {
|
|
|
+ func->irq_handler = RT_NULL;
|
|
|
+ sdio_irq_thread_delete(func->card);
|
|
|
+ }
|
|
|
+
|
|
|
+ reg = sdio_io_readb(func, SDIO_REG_CCCR_INT_EN, &ret);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ reg &= ~(1 << func->num);
|
|
|
+
|
|
|
+ /* Disable master interrupt with the last function interrupt */
|
|
|
+ if (!(reg & 0xFE))
|
|
|
+ reg = 0;
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_CCCR_INT_EN, reg);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+void sdio_irq_wakeup(struct rt_mmcsd_host *host)
|
|
|
+{
|
|
|
+ host->ops->enable_sdio_irq(host, 0);
|
|
|
+ rt_sem_release(host->sdio_irq_sem);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+rt_int32_t sdio_enable_func(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t reg;
|
|
|
+ rt_uint32_t timeout;
|
|
|
+
|
|
|
+ RT_ASSERT(func != RT_NULL);
|
|
|
+ RT_ASSERT(func->card != RT_NULL);
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: enabling function %d\n", func->num);
|
|
|
+
|
|
|
+ reg = sdio_io_readb(func, SDIO_REG_CCCR_IO_EN, &ret);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ reg |= 1 << func->num;
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_CCCR_IO_EN, reg);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ timeout = rt_tick_get() + func->enable_timeout_val * 1000 / RT_TICK_PER_SECOND;
|
|
|
+
|
|
|
+ while (1)
|
|
|
+ {
|
|
|
+ reg = sdio_io_readb(func, SDIO_REG_CCCR_IO_RDY, &ret);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+ if (reg & (1 << func->num))
|
|
|
+ break;
|
|
|
+ ret = -RT_ETIMEOUT;
|
|
|
+ if (rt_tick_get() > timeout)
|
|
|
+ goto err;
|
|
|
+ }
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: enabled function successfull\n");
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err:
|
|
|
+ mmcsd_dbg("SDIO: failed to enable function %d\n", func->num);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+rt_int32_t sdio_disable_func(struct rt_sdio_function *func)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+ rt_uint8_t reg;
|
|
|
+
|
|
|
+ RT_ASSERT(func != RT_NULL);
|
|
|
+ RT_ASSERT(func->card != RT_NULL);
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: disabling function %d\n", func->num);
|
|
|
+
|
|
|
+ reg = sdio_io_readb(func, SDIO_REG_CCCR_IO_EN, &ret);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ reg &= ~(1 << func->num);
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_CCCR_IO_EN, reg);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ mmcsd_dbg("SDIO: disabled function successfull\n");
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err:
|
|
|
+ mmcsd_dbg("SDIO: failed to disable function %d\n", func->num);
|
|
|
+ return -RT_EIO;
|
|
|
+}
|
|
|
+
|
|
|
+rt_int32_t sdio_set_block_size(struct rt_sdio_function *func, rt_uint32_t blksize)
|
|
|
+{
|
|
|
+ rt_int32_t ret;
|
|
|
+
|
|
|
+ if (blksize > func->card->host->max_blk_size)
|
|
|
+ return -RT_ERROR;
|
|
|
+
|
|
|
+ if (blksize == 0)
|
|
|
+ {
|
|
|
+ blksize = MIN(func->max_blk_size, func->card->host->max_blk_size);
|
|
|
+ blksize = MIN(blksize, 512u);
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE,
|
|
|
+ blksize & 0xff);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+ ret = sdio_io_writeb(func, SDIO_REG_FBR_BASE(func->num) + SDIO_REG_FBR_BLKSIZE + 1,
|
|
|
+ (blksize >> 8) & 0xff);
|
|
|
+ if (ret)
|
|
|
+ return ret;
|
|
|
+ func->cur_blk_size = blksize;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+rt_inline rt_int32_t sdio_match_function(struct rt_sdio_function *func,
|
|
|
+ const struct rt_sdio_device_id *id)
|
|
|
+{
|
|
|
+ if (id->func_code != SDIO_ANY_FUNC_ID && id->func_code != func->func_code)
|
|
|
+ return 0;
|
|
|
+ if (id->manufacturer != SDIO_ANY_MAN_ID && id->manufacturer != func->manufacturer)
|
|
|
+ return 0;
|
|
|
+ if (id->product != SDIO_ANY_PROD_ID && id->product != func->product)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+static struct rt_sdio_function *sdio_match_driver(struct rt_sdio_device_id *id)
|
|
|
+{
|
|
|
+ rt_uint32_t fn;
|
|
|
+ rt_list_t *l;
|
|
|
+ struct sdio_card *sc;
|
|
|
+ struct rt_mmcsd_card *card;
|
|
|
+
|
|
|
+ for (l = (&sdio_cards)->next; l != &sdio_cards; l = l->next)
|
|
|
+ {
|
|
|
+ sc = (struct sdio_card *)list_entry(l, struct sdio_card, list);
|
|
|
+ card = sc->card;
|
|
|
+ for (fn = 0; fn < card->sdio_function_num; fn++)
|
|
|
+ {
|
|
|
+ if (sdio_match_function(card->sdio_function[fn], id))
|
|
|
+ {
|
|
|
+ return card->sdio_function[fn];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return RT_NULL;
|
|
|
+}
|
|
|
+
|
|
|
+rt_int32_t sdio_register_driver(struct rt_sdio_driver *driver)
|
|
|
+{
|
|
|
+ struct sdio_driver *sd;
|
|
|
+ struct rt_sdio_function *func;
|
|
|
+
|
|
|
+ sd = rt_malloc(sizeof(struct sdio_driver));
|
|
|
+ if (sd == RT_NULL)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc sdio driver failed\n");
|
|
|
+ return -RT_ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ list_insert_after(&sdio_drivers, &sd->list);
|
|
|
+
|
|
|
+ if (!list_isempty(&sdio_cards))
|
|
|
+ {
|
|
|
+ func = sdio_match_driver(driver->id);
|
|
|
+ if (func != RT_NULL)
|
|
|
+ {
|
|
|
+ driver->probe(func);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+rt_int32_t sdio_unregister_driver(struct rt_sdio_driver *driver)
|
|
|
+{
|
|
|
+ rt_list_t *l;
|
|
|
+ struct sdio_driver *sd = RT_NULL;
|
|
|
+ struct rt_sdio_function *func;
|
|
|
+
|
|
|
+
|
|
|
+ list_insert_after(&sdio_drivers, &sd->list);
|
|
|
+
|
|
|
+ for (l = (&sdio_drivers)->next; l != &sdio_drivers; l = l->next)
|
|
|
+ {
|
|
|
+ sd = (struct sdio_driver *)list_entry(l, struct sdio_driver, list);
|
|
|
+ if (sd->drv != driver)
|
|
|
+ {
|
|
|
+ sd = RT_NULL;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (sd == RT_NULL)
|
|
|
+ {
|
|
|
+ rt_kprintf("SDIO driver %s not register\n", driver->name);
|
|
|
+ return -RT_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!list_isempty(&sdio_cards))
|
|
|
+ {
|
|
|
+ func = sdio_match_driver(driver->id);
|
|
|
+ if (func != RT_NULL)
|
|
|
+ {
|
|
|
+ driver->remove(func);
|
|
|
+ list_remove(&sd->list);
|
|
|
+ rt_free(sd);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+void rt_sdio_init(void)
|
|
|
+{
|
|
|
+ list_init(&sdio_cards);
|
|
|
+ list_init(&sdio_drivers);
|
|
|
+}
|
|
|
+
|
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