Add set block count command support for close ended
multiblock read/write.
Signed-off-by: Balaji T K <balaj...@ti.com>
---
drivers/mmc/host/omap_hsmmc.c | 21 +++++++++++++++++----
1 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index b02fd30..bad246e 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -193,6 +193,8 @@ struct omap_hsmmc_host {
struct omap_mmc_platform_data *pdata;
};
+static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host);
+
static int omap_hsmmc_card_detect(struct device *dev, int slot)
{
struct omap_hsmmc_host *host = dev_get_drvdata(dev);
@@ -865,11 +867,10 @@ omap_hsmmc_xfer_done(struct omap_hsmmc_host *host, struct
mmc_data *data)
else
data->bytes_xfered = 0;
- if (!data->stop) {
+ if (data->stop && (data->error || !host->mrq->sbc))
+ omap_hsmmc_start_command(host, data->stop, NULL);
+ else
omap_hsmmc_request_done(host, data->mrq);
- return;
- }
- omap_hsmmc_start_command(host, data->stop, NULL);
}
/*
@@ -880,6 +881,14 @@ omap_hsmmc_cmd_done(struct omap_hsmmc_host *host, struct
mmc_command *cmd)
{
host->cmd = NULL;
+ if (host->mrq->sbc && (host->cmd == host->mrq->sbc) &&
+ !host->mrq->sbc->error) {
+ omap_hsmmc_start_dma_transfer(host);
+ omap_hsmmc_start_command(host, host->mrq->cmd,
+ host->mrq->data);
+ return;
+ }
+
if (cmd->flags & MMC_RSP_PRESENT) {
if (cmd->flags & MMC_RSP_136) {
/* response type 2 */
@@ -1482,6 +1491,10 @@ static void omap_hsmmc_request(struct mmc_host *mmc,
struct mmc_request *req)
mmc_request_done(mmc, req);
return;
}
+ if (req->sbc) {
+ omap_hsmmc_start_command(host, req->sbc, NULL);
+ return;
+ }
omap_hsmmc_start_dma_transfer(host);
omap_hsmmc_start_command(host, req->cmd, req->data);
--
1.7.5.4
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