C++ (Cpp) bfin_read_SDH_RESPONSE0の例

コード例 #1

ファイル: bfin_sdh.c プロジェクト: 247a/lenovo_b6000-8000_kernel_source

static int
sdh_send_cmd(struct mmc *mmc, struct mmc_cmd *mmc_cmd)
{
	unsigned int sdh_cmd;
	unsigned int status;
	int cmd = mmc_cmd->cmdidx;
	int flags = mmc_cmd->resp_type;
	int arg = mmc_cmd->cmdarg;
	int ret = 0;
	sdh_cmd = 0;

	sdh_cmd |= cmd;

	if (flags & MMC_RSP_PRESENT)
		sdh_cmd |= CMD_RSP;

	if (flags & MMC_RSP_136)
		sdh_cmd |= CMD_L_RSP;

	bfin_write_SDH_ARGUMENT(arg);
	bfin_write_SDH_COMMAND(sdh_cmd | CMD_E);

	/* wait for a while */
	do {
		udelay(1);
		status = bfin_read_SDH_STATUS();
	} while (!(status & (CMD_SENT | CMD_RESP_END | CMD_TIME_OUT |
		CMD_CRC_FAIL)));

	if (flags & MMC_RSP_PRESENT) {
		mmc_cmd->response[0] = bfin_read_SDH_RESPONSE0();
		if (flags & MMC_RSP_136) {
			mmc_cmd->response[1] = bfin_read_SDH_RESPONSE1();
			mmc_cmd->response[2] = bfin_read_SDH_RESPONSE2();
			mmc_cmd->response[3] = bfin_read_SDH_RESPONSE3();
		}
	}

	if (status & CMD_TIME_OUT)
		ret |= TIMEOUT;
	else if (status & CMD_CRC_FAIL && flags & MMC_RSP_CRC)
		ret |= COMM_ERR;

	bfin_write_SDH_STATUS_CLR(CMD_SENT_STAT | CMD_RESP_END_STAT |
				CMD_TIMEOUT_STAT | CMD_CRC_FAIL_STAT);
	return ret;
}

コード例 #2

ファイル: bfin_sdh.c プロジェクト: P-YChen/Porting-U-boot

static int
mmc_cmd(unsigned long cmd, unsigned long arg, void *resp, unsigned long flags)
{
	unsigned int sdh_cmd;
	unsigned int status;
	int ret = 0;
	sdh_cmd = 0;
	unsigned long *response = resp;
	sdh_cmd |= cmd;

	if (flags & MMC_RSP_PRESENT)
		sdh_cmd |= CMD_RSP;

	if (flags & MMC_RSP_136)
		sdh_cmd |= CMD_L_RSP;

	bfin_write_SDH_ARGUMENT(arg);
	bfin_write_SDH_COMMAND(sdh_cmd | CMD_E);

	/* wait for a while */
	do {
		udelay(1);
		status = bfin_read_SDH_STATUS();
	} while (!(status & (CMD_SENT | CMD_RESP_END | CMD_TIME_OUT |
		CMD_CRC_FAIL)));

	if (flags & MMC_RSP_PRESENT) {
		response[0] = bfin_read_SDH_RESPONSE0();
		if (flags & MMC_RSP_136) {
			response[1] = bfin_read_SDH_RESPONSE1();
			response[2] = bfin_read_SDH_RESPONSE2();
			response[3] = bfin_read_SDH_RESPONSE3();
		}
	}

	if (status & CMD_TIME_OUT) {
		printf("CMD%d timeout\n", (int)cmd);
		ret |= -ETIMEDOUT;
	} else if (status & CMD_CRC_FAIL && flags & MMC_RSP_CRC) {
		printf("CMD%d CRC failure\n", (int)cmd);
		ret |= -EILSEQ;
	}
	bfin_write_SDH_STATUS_CLR(CMD_SENT_STAT | CMD_RESP_END_STAT |
				CMD_TIMEOUT_STAT | CMD_CRC_FAIL_STAT);
	return ret;
}

コード例 #3

ファイル: bfin_sdh.c プロジェクト: webom2008/bf51x.001.Uboot

static int
sdh_send_cmd(struct mmc *mmc, struct mmc_cmd *mmc_cmd)
{
	unsigned int status, timeout;
	int cmd = mmc_cmd->cmdidx;
	int flags = mmc_cmd->resp_type;
	int arg = mmc_cmd->cmdarg;
	int ret;
	u16 sdh_cmd;

	sdh_cmd = cmd | CMD_E;
	if (flags & MMC_RSP_PRESENT)
		sdh_cmd |= CMD_RSP;
	if (flags & MMC_RSP_136)
		sdh_cmd |= CMD_L_RSP;
#ifdef RSI_BLKSZ
	sdh_cmd |= CMD_DATA0_BUSY;
#endif

	bfin_write_SDH_ARGUMENT(arg);
	bfin_write_SDH_COMMAND(sdh_cmd);

	/* wait for a while */
	timeout = 0;
	do {
		if (++timeout > 1000000) {
			status = CMD_TIME_OUT;
			break;
		}
		udelay(1);
		status = bfin_read_SDH_STATUS();
	} while (!(status & (CMD_SENT | CMD_RESP_END | CMD_TIME_OUT |
		CMD_CRC_FAIL)));

	if (flags & MMC_RSP_PRESENT) {
		mmc_cmd->response[0] = bfin_read_SDH_RESPONSE0();
		if (flags & MMC_RSP_136) {
			mmc_cmd->response[1] = bfin_read_SDH_RESPONSE1();
			mmc_cmd->response[2] = bfin_read_SDH_RESPONSE2();
			mmc_cmd->response[3] = bfin_read_SDH_RESPONSE3();
		}
	}

	if (status & CMD_TIME_OUT)
		ret = TIMEOUT;
	else if (status & CMD_CRC_FAIL && flags & MMC_RSP_CRC)
		ret = COMM_ERR;
	else
		ret = 0;

	bfin_write_SDH_STATUS_CLR(CMD_SENT_STAT | CMD_RESP_END_STAT |
				CMD_TIMEOUT_STAT | CMD_CRC_FAIL_STAT);
#ifdef RSI_BLKSZ
	/* wait till card ready */
	while (!(bfin_read_RSI_ESTAT() & SD_CARD_READY))
		continue;
	bfin_write_RSI_ESTAT(SD_CARD_READY);
#endif

	return ret;
}