Function sdhci_send_command

src/commonlib/storage/sdhci.c:288–333

}

static int sdhci_send_command(struct sd_mmc_ctrlr *ctrlr,
	struct mmc_command *cmd, struct mmc_data *data)
{
	void *buf;
	unsigned int bbflags;
	size_t len;
	struct bounce_buffer *bbstate = NULL;
	struct bounce_buffer bbstate_val;
	int ret;

	sdhc_log_command(cmd);

	if (CONFIG(SDHCI_BOUNCE_BUFFER) && data) {
		if (data->flags & DATA_FLAG_READ) {
			buf = data->dest;
			bbflags = GEN_BB_WRITE;
		} else {
			buf = (void *)data->src;
			bbflags = GEN_BB_READ;
		}
		len = data->blocks * data->blocksize;

		/*
		 * on some platform(like rk3399 etc) need to worry about
		 * cache coherency, so check the buffer, if not dma
		 * coherent, use bounce_buffer to do DMA management.
		 */
		if (!dma_coherent(buf)) {
			bbstate = &bbstate_val;
			if (bounce_buffer_start(bbstate, buf, len, bbflags)) {
				sdhc_error("Failed to get bounce buffer.\n");
				return -1;
			}
		}
	}

	sdhci_led_control(ctrlr, 1);
	ret = sdhci_send_command_bounced(ctrlr, cmd, data, bbstate);
	sdhci_led_control(ctrlr, 0);
	sdhc_log_ret(ret);

	if (CONFIG(SDHCI_BOUNCE_BUFFER) && bbstate)
		bounce_buffer_stop(bbstate);

	return ret;
}

static int sdhci_set_clock(struct sdhci_ctrlr *sdhci_ctrlr, unsigned int clock)
{