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| author |   Takashi Iwai <tiwai@suse.de> | 2007-02-22 16:07:21 +0100 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2007-05-11 16:55:43 +0200 |
| commit | 8f7ba051d2abb3d3bde9b95e47246c60b704d2b4 (patch) | |
| tree | 6b1fcd728b520ca24c99672c873ed17b43ac3b9f /sound/drivers/mpu401/mpu401.c | |
| parent | [ALSA] bt87x - Add ATI TV-Wonder to the supported list (diff) | |
| download | linux-dev-8f7ba051d2abb3d3bde9b95e47246c60b704d2b4.tar.xz linux-dev-8f7ba051d2abb3d3bde9b95e47246c60b704d2b4.zip | |
[ALSA] mpu401 - Add MPU401_INFO_UART_ONLY bitflag
Added MPU401_INFO_UART_ONLY bitflag to avoid issueing UART_ENTER command
at opening streams. Some devices support only UART mode and give errors
to UART_ENTER.
A new module option, uart_enter, is added to snd-mpu401 driver.
For UART-only devices, set uart_enter=0.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/drivers/mpu401/mpu401.c')
| -rw-r--r-- | sound/drivers/mpu401/mpu401.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sound/drivers/mpu401/mpu401.c b/sound/drivers/mpu401/mpu401.c index 2de181ad0b05..1d563e515c17 100644 --- a/sound/drivers/mpu401/mpu401.c +++ b/sound/drivers/mpu401/mpu401.c @@ -42,6 +42,7 @@ static int pnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; #endif static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* MPU-401 port number */ static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* MPU-401 IRQ */ +static int uart_enter[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for MPU-401 device."); @@ -57,6 +58,8 @@ module_param_array(port, long, NULL, 0444); MODULE_PARM_DESC(port, "Port # for MPU-401 device."); module_param_array(irq, int, NULL, 0444); MODULE_PARM_DESC(irq, "IRQ # for MPU-401 device."); +module_param_array(uart_enter, bool, NULL, 0444); +MODULE_PARM_DESC(uart_enter, "Issue UART_ENTER command at open."); static struct platform_device *platform_devices[SNDRV_CARDS]; static int pnp_registered; @@ -80,10 +83,11 @@ static int snd_mpu401_create(int dev, struct snd_card **rcard) strcat(card->longname, "polled"); } - if ((err = snd_mpu401_uart_new(card, 0, - MPU401_HW_MPU401, - port[dev], 0, - irq[dev], irq[dev] >= 0 ? IRQF_DISABLED : 0, NULL)) < 0) { + err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401, port[dev], + uart_enter[dev] ? 0 : MPU401_INFO_UART_ONLY, + irq[dev], irq[dev] >= 0 ? IRQF_DISABLED : 0, + NULL); + if (err < 0) { printk(KERN_ERR "MPU401 not detected at 0x%lx\n", port[dev]); goto _err; } |