diff options
| author |   Eric Benard <ebenard@free.fr> | 2008-05-30 14:26:05 +0200 |
|---|---|---|
| committer |   Pierre Ossman <drzeus@drzeus.cx> | 2008-07-15 14:14:42 +0200 |
| commit | 7a6588ba20aed4505da912f9dd73616e9bd9ba67 (patch) | |
| tree | fed9ddbfce1527ea26541e306e488223246c4359 /drivers/mmc | |
| parent | mmc: at91_mci: add multiwrite switch (diff) | |
| download | linux-dev-7a6588ba20aed4505da912f9dd73616e9bd9ba67.tar.xz linux-dev-7a6588ba20aed4505da912f9dd73616e9bd9ba67.zip | |
mmc: at91_mci: add sdio irq management
Enable SDIO interrupt handling.
Signed-off-by: Eric Benard <ebenard@free.fr>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/at91_mci.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c index b2bb79e74eaa..9b546a97aa44 100644 --- a/drivers/mmc/host/at91_mci.c +++ b/drivers/mmc/host/at91_mci.c @@ -665,7 +665,7 @@ static void at91_mci_completed_command(struct at91mci_host *host) struct mmc_command *cmd = host->cmd; unsigned int status; - at91_mci_write(host, AT91_MCI_IDR, 0xffffffff); + at91_mci_write(host, AT91_MCI_IDR, 0xffffffff & ~(AT91_MCI_SDIOIRQA | AT91_MCI_SDIOIRQB)); cmd->resp[0] = at91_mci_read(host, AT91_MCI_RSPR(0)); cmd->resp[1] = at91_mci_read(host, AT91_MCI_RSPR(1)); @@ -856,6 +856,12 @@ static irqreturn_t at91_mci_irq(int irq, void *devid) } } + if (int_status & AT91_MCI_SDIOIRQA) + mmc_signal_sdio_irq(host->mmc); + + if (int_status & AT91_MCI_SDIOIRQB) + mmc_signal_sdio_irq(host->mmc); + if (int_status & AT91_MCI_TXRDY) pr_debug("Ready to transmit\n"); @@ -870,10 +876,10 @@ static irqreturn_t at91_mci_irq(int irq, void *devid) if (completed) { pr_debug("Completed command\n"); - at91_mci_write(host, AT91_MCI_IDR, 0xffffffff); + at91_mci_write(host, AT91_MCI_IDR, 0xffffffff & ~(AT91_MCI_SDIOIRQA | AT91_MCI_SDIOIRQB)); at91_mci_completed_command(host); } else - at91_mci_write(host, AT91_MCI_IDR, int_status); + at91_mci_write(host, AT91_MCI_IDR, int_status & ~(AT91_MCI_SDIOIRQA | AT91_MCI_SDIOIRQB)); return IRQ_HANDLED; } @@ -913,10 +919,22 @@ static int at91_mci_get_ro(struct mmc_host *mmc) return -ENOSYS; } +static void at91_mci_enable_sdio_irq(struct mmc_host *mmc, int enable) +{ + struct at91mci_host *host = mmc_priv(mmc); + + pr_debug("%s: sdio_irq %c : %s\n", mmc_hostname(host->mmc), + host->board->slot_b ? 'B':'A', enable ? "enable" : "disable"); + at91_mci_write(host, enable ? AT91_MCI_IER : AT91_MCI_IDR, + host->board->slot_b ? AT91_MCI_SDIOIRQB : AT91_MCI_SDIOIRQA); + +} + static const struct mmc_host_ops at91_mci_ops = { .request = at91_mci_request, .set_ios = at91_mci_set_ios, .get_ro = at91_mci_get_ro, + .enable_sdio_irq = at91_mci_enable_sdio_irq, }; /* @@ -947,7 +965,7 @@ static int __init at91_mci_probe(struct platform_device *pdev) mmc->f_min = 375000; mmc->f_max = 25000000; mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; - mmc->caps = MMC_CAP_MULTIWRITE; + mmc->caps = MMC_CAP_MULTIWRITE | MMC_CAP_SDIO_IRQ; mmc->max_blk_size = 4095; mmc->max_blk_count = mmc->max_req_size; |