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| author | Marc Pignat <marc.pignat@hevs.ch> | 2008-05-30 14:06:32 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2008-07-15 14:14:41 +0200 |
| commit | e181dce8acab4f7d7c4772d2a8281510d503ab21 (patch) | |
| tree | f82d2d577e916802c484345dd6d1a559ea29bd9b /drivers/mmc/host/at91_mci.c | |
| parent | mmc: at91_mci: support for block size not modulo 4 (diff) | |
| download | linux-e181dce8acab4f7d7c4772d2a8281510d503ab21.tar.xz linux-e181dce8acab4f7d7c4772d2a8281510d503ab21.zip | |
mmc: at91_mci: show timeouts
Detect command timeout (or mci controller hangs).
Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Hans J Koch <hjk@linutronix.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host/at91_mci.c')
| -rw-r--r-- | drivers/mmc/host/at91_mci.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c index e40340f32e35..fce171c7c67e 100644 --- a/drivers/mmc/host/at91_mci.c +++ b/drivers/mmc/host/at91_mci.c @@ -125,8 +125,33 @@ struct at91mci_host /* Latest in the scatterlist that has been enabled for transfer */ int transfer_index; + + /* Timer for timeouts */ + struct timer_list timer; }; +static void at91_timeout_timer(unsigned long data) +{ + struct at91mci_host *host; + + host = (struct at91mci_host *)data; + + if (host->request) { + dev_err(host->mmc->parent, "Timeout waiting end of packet\n"); + + if (host->cmd && host->cmd->data) { + host->cmd->data->error = -ETIMEDOUT; + } else { + if (host->cmd) + host->cmd->error = -ETIMEDOUT; + else + host->request->cmd->error = -ETIMEDOUT; + } + + mmc_request_done(host->mmc, host->request); + } +} + /* * Copy from sg to a dma block - used for transfers */ @@ -557,9 +582,10 @@ static void at91_mci_process_next(struct at91mci_host *host) else if ((!(host->flags & FL_SENT_STOP)) && host->request->stop) { host->flags |= FL_SENT_STOP; at91_mci_send_command(host, host->request->stop); - } - else + } else { + del_timer(&host->timer); mmc_request_done(host->mmc, host->request); + } } /* @@ -618,6 +644,8 @@ static void at91_mci_request(struct mmc_host *mmc, struct mmc_request *mrq) host->request = mrq; host->flags = 0; + mod_timer(&host->timer, jiffies + HZ); + at91_mci_process_next(host); } @@ -936,6 +964,8 @@ static int __init at91_mci_probe(struct platform_device *pdev) mmc_add_host(mmc); + setup_timer(&host->timer, at91_timeout_timer, (unsigned long)host); + /* * monitor card insertion/removal if we can */ @@ -996,6 +1026,7 @@ static int __exit at91_mci_remove(struct platform_device *pdev) } at91_mci_disable(host); + del_timer_sync(&host->timer); mmc_remove_host(mmc); free_irq(host->irq, host); |