mirror of
https://github.com/adulau/aha.git
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[ALSA] sb16 - Use platform_device and add PnP support
Modules: SB16/AWE driver Rewrite the probe/remove with platform_device. Add PM support using PnP suspend/resume callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
Jaroslav Kysela
parent
703529140c
commit
6f045616af
1 changed files with 207 additions and 126 deletions
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@ -24,6 +24,8 @@
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/pnp.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/moduleparam.h>
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#include <sound/core.h>
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#include <sound/sb.h>
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@ -32,7 +34,6 @@
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#include <sound/opl3.h>
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#include <sound/emu8000.h>
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#include <sound/seq_device.h>
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#define SNDRV_LEGACY_AUTO_PROBE
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#define SNDRV_LEGACY_FIND_FREE_IRQ
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#define SNDRV_LEGACY_FIND_FREE_DMA
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#include <sound/initval.h>
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@ -129,6 +130,7 @@ MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth.");
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struct snd_card_sb16 {
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struct resource *fm_res; /* used to block FM i/o region for legacy cards */
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struct snd_sb *chip;
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#ifdef CONFIG_PNP
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int dev_no;
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struct pnp_dev *dev;
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@ -138,8 +140,6 @@ struct snd_card_sb16 {
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#endif
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};
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static struct snd_card *snd_sb16_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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#ifdef CONFIG_PNP
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static struct pnp_card_device_id snd_sb16_pnpids[] = {
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@ -341,7 +341,7 @@ __wt_error:
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static void snd_sb16_free(struct snd_card *card)
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{
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struct snd_card_sb16 *acard = (struct snd_card_sb16 *)card->private_data;
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struct snd_card_sb16 *acard = card->private_data;
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if (acard == NULL)
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return;
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@ -354,17 +354,21 @@ static void snd_sb16_free(struct snd_card *card)
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#define is_isapnp_selected(dev) 0
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#endif
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static int __init snd_sb16_probe(int dev,
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struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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static struct snd_card *snd_sb16_card_new(int dev)
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{
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struct snd_card *card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_sb16));
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if (card == NULL)
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return NULL;
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card->private_free = snd_sb16_free;
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return card;
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}
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static int __init snd_sb16_probe(struct snd_card *card, int dev)
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{
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static int possible_irqs[] = {5, 9, 10, 7, -1};
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static int possible_dmas8[] = {1, 3, 0, -1};
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static int possible_dmas16[] = {5, 6, 7, -1};
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int xirq, xdma8, xdma16;
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struct snd_sb *chip;
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struct snd_card *card;
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struct snd_card_sb16 *acard;
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struct snd_card_sb16 *acard = card->private_data;
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struct snd_opl3 *opl3;
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struct snd_hwdep *synth = NULL;
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#ifdef CONFIG_SND_SB16_CSP
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@ -373,54 +377,9 @@ static int __init snd_sb16_probe(int dev,
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unsigned long flags;
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int err;
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card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_sb16));
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if (card == NULL)
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return -ENOMEM;
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acard = (struct snd_card_sb16 *) card->private_data;
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card->private_free = snd_sb16_free;
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#ifdef CONFIG_PNP
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if (isapnp[dev]) {
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if ((err = snd_card_sb16_pnp(dev, acard, pcard, pid)))
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goto _err;
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snd_card_set_dev(card, &pcard->card->dev);
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}
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#endif
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xirq = irq[dev];
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xdma8 = dma8[dev];
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xdma16 = dma16[dev];
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if (! is_isapnp_selected(dev)) {
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if (xirq == SNDRV_AUTO_IRQ) {
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if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
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err = -EBUSY;
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goto _err;
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}
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}
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if (xdma8 == SNDRV_AUTO_DMA) {
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if ((xdma8 = snd_legacy_find_free_dma(possible_dmas8)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n");
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err = -EBUSY;
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goto _err;
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}
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}
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if (xdma16 == SNDRV_AUTO_DMA) {
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if ((xdma16 = snd_legacy_find_free_dma(possible_dmas16)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n");
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err = -EBUSY;
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goto _err;
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}
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}
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/* non-PnP FM port address is hardwired with base port address */
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fm_port[dev] = port[dev];
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/* block the 0x388 port to avoid PnP conflicts */
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acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
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#ifdef SNDRV_SBAWE_EMU8000
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/* non-PnP AWE port address is hardwired with base port address */
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awe_port[dev] = port[dev] + 0x400;
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#endif
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}
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if ((err = snd_sbdsp_create(card,
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port[dev],
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@ -430,19 +389,19 @@ static int __init snd_sb16_probe(int dev,
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xdma16,
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SB_HW_AUTO,
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&chip)) < 0)
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goto _err;
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return err;
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acard->chip = chip;
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if (chip->hardware != SB_HW_16) {
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snd_printk(KERN_ERR PFX "SB 16 chip was not detected at 0x%lx\n", port[dev]);
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err = -ENODEV;
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goto _err;
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return -ENODEV;
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}
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chip->mpu_port = mpu_port[dev];
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if (! is_isapnp_selected(dev) && (err = snd_sb16dsp_configure(chip)) < 0)
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goto _err;
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return err;
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if ((err = snd_sb16dsp_pcm(chip, 0, NULL)) < 0)
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goto _err;
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if ((err = snd_sb16dsp_pcm(chip, 0, &chip->pcm)) < 0)
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return err;
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strcpy(card->driver,
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#ifdef SNDRV_SBAWE_EMU8000
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@ -464,7 +423,7 @@ static int __init snd_sb16_probe(int dev,
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if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB,
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chip->mpu_port, 0,
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xirq, 0, &chip->rmidi)) < 0)
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goto _err;
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return err;
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chip->rmidi_callback = snd_mpu401_uart_interrupt;
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}
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@ -487,12 +446,12 @@ static int __init snd_sb16_probe(int dev,
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int seqdev = 1;
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#endif
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if ((err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth)) < 0)
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goto _err;
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return err;
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}
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}
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if ((err = snd_sbmixer_new(chip)) < 0)
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goto _err;
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return err;
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#ifdef CONFIG_SND_SB16_CSP
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/* CSP chip on SB16ASP/AWE32 */
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@ -512,7 +471,7 @@ static int __init snd_sb16_probe(int dev,
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seq_ports[dev], NULL)) < 0) {
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snd_printk(KERN_ERR PFX "fatal error - EMU-8000 synthesizer not detected at 0x%lx\n", awe_port[dev]);
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goto _err;
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return err;
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}
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}
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#endif
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@ -524,56 +483,168 @@ static int __init snd_sb16_probe(int dev,
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(mic_agc[dev] ? 0x00 : 0x01));
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spin_unlock_irqrestore(&chip->mixer_lock, flags);
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if ((err = snd_card_set_generic_dev(card)) < 0)
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goto _err;
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if ((err = snd_card_register(card)) < 0)
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goto _err;
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return err;
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if (pcard)
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pnp_set_card_drvdata(pcard, card);
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else
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snd_sb16_legacy[dev] = card;
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return 0;
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_err:
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snd_card_free(card);
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return err;
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}
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static int __init snd_sb16_probe_legacy_port(unsigned long xport)
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#ifdef CONFIG_PM
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static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
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{
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static int dev;
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int res;
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struct snd_card_sb16 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
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continue;
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if (is_isapnp_selected(dev))
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continue;
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port[dev] = xport;
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res = snd_sb16_probe(dev, NULL, NULL);
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if (res < 0)
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port[dev] = SNDRV_AUTO_PORT;
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return res;
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}
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return -ENODEV;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(chip->pcm);
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snd_sbmixer_suspend(chip);
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return 0;
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}
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static int snd_sb16_resume(struct snd_card *card)
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{
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struct snd_card_sb16 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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snd_sbdsp_reset(chip);
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snd_sbmixer_resume(chip);
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snd_power_change_state(card, SNDRV_CTL_POWER_D0);
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return 0;
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}
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#endif
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static int __init snd_sb16_nonpnp_probe1(int dev, struct platform_device *devptr)
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{
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struct snd_card_sb16 *acard;
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struct snd_card *card;
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int err;
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card = snd_sb16_card_new(dev);
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if (! card)
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return -ENOMEM;
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acard = card->private_data;
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/* non-PnP FM port address is hardwired with base port address */
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fm_port[dev] = port[dev];
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/* block the 0x388 port to avoid PnP conflicts */
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acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
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#ifdef SNDRV_SBAWE_EMU8000
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/* non-PnP AWE port address is hardwired with base port address */
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awe_port[dev] = port[dev] + 0x400;
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#endif
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snd_card_set_dev(card, &devptr->dev);
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if ((err = snd_sb16_probe(card, dev)) < 0) {
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snd_card_free(card);
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return err;
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}
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platform_set_drvdata(devptr, card);
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return 0;
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}
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static int __init snd_sb16_nonpnp_probe(struct platform_device *pdev)
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{
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int dev = pdev->id;
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int err;
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static int possible_irqs[] = {5, 9, 10, 7, -1};
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static int possible_dmas8[] = {1, 3, 0, -1};
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static int possible_dmas16[] = {5, 6, 7, -1};
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if (irq[dev] == SNDRV_AUTO_IRQ) {
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if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
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return -EBUSY;
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}
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}
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if (dma8[dev] == SNDRV_AUTO_DMA) {
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if ((dma8[dev] = snd_legacy_find_free_dma(possible_dmas8)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n");
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return -EBUSY;
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}
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}
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if (dma16[dev] == SNDRV_AUTO_DMA) {
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if ((dma16[dev] = snd_legacy_find_free_dma(possible_dmas16)) < 0) {
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snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n");
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return -EBUSY;
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}
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}
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if (port[dev] != SNDRV_AUTO_PORT)
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return snd_sb16_nonpnp_probe1(dev, pdev);
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else {
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static int possible_ports[] = {0x220, 0x240, 0x260, 0x280};
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int i;
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for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
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port[dev] = possible_ports[i];
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err = snd_sb16_nonpnp_probe1(dev, pdev);
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if (! err)
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return 0;
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}
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return err;
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}
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}
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static int __devexit snd_sb16_nonpnp_remove(struct platform_device *devptr)
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{
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snd_card_free(platform_get_drvdata(devptr));
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platform_set_drvdata(devptr, NULL);
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return 0;
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}
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#ifdef CONFIG_PM
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static int snd_sb16_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
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{
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return snd_sb16_suspend(platform_get_drvdata(dev), state);
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}
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static int snd_sb16_nonpnp_resume(struct platform_device *dev)
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{
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return snd_sb16_resume(platform_get_drvdata(dev));
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}
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#endif
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#ifdef SNDRV_SBAWE
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#define SND_SB16_DRIVER "snd_sbawe"
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#else
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#define SND_SB16_DRIVER "snd_sb16"
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#endif
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static struct platform_driver snd_sb16_nonpnp_driver = {
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.probe = snd_sb16_nonpnp_probe,
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.remove = __devexit_p(snd_sb16_nonpnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_sb16_nonpnp_suspend,
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.resume = snd_sb16_nonpnp_resume,
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#endif
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.driver = {
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.name = SND_SB16_DRIVER
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},
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};
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#ifdef CONFIG_PNP
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static int __devinit snd_sb16_pnp_detect(struct pnp_card_link *card,
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const struct pnp_card_device_id *id)
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static int __devinit snd_sb16_pnp_detect(struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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{
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static int dev;
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struct snd_card *card;
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int res;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev] || !isapnp[dev])
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continue;
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res = snd_sb16_probe(dev, card, id);
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if (res < 0)
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card = snd_sb16_card_new(dev);
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if (! card)
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return -ENOMEM;
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snd_card_set_dev(card, &pcard->card->dev);
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if ((res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid)) < 0 ||
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(res = snd_sb16_probe(card, dev)) < 0) {
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snd_card_free(card);
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return res;
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}
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pnp_set_card_drvdata(pcard, card);
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dev++;
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return 0;
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}
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@ -583,50 +654,63 @@ static int __devinit snd_sb16_pnp_detect(struct pnp_card_link *card,
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static void __devexit snd_sb16_pnp_remove(struct pnp_card_link * pcard)
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{
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struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
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snd_card_disconnect(card);
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snd_card_free_in_thread(card);
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snd_card_free(pnp_get_card_drvdata(pcard));
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pnp_set_card_drvdata(pcard, NULL);
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}
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#ifdef CONFIG_PM
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static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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return snd_sb16_suspend(pnp_get_card_drvdata(pcard), state);
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}
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static int snd_sb16_pnp_resume(struct pnp_card_link *pcard)
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{
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return snd_sb16_resume(pnp_get_card_drvdata(pcard));
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}
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#endif
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static struct pnp_card_driver sb16_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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#ifdef SNDRV_SBAWE
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.name = "sbawe",
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#else
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.name = "sb16",
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#endif
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.id_table = snd_sb16_pnpids,
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.probe = snd_sb16_pnp_detect,
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.remove = __devexit_p(snd_sb16_pnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_sb16_pnp_suspend,
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.resume = snd_sb16_pnp_resume,
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#endif
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};
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#endif /* CONFIG_PNP */
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static int __init alsa_card_sb16_init(void)
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{
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int dev, cards = 0, i;
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static unsigned long possible_ports[] = {0x220, 0x240, 0x260, 0x280, -1};
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int i, err, cards = 0;
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/* legacy non-auto cards at first */
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||||
for (dev = 0; dev < SNDRV_CARDS; dev++) {
|
||||
if (!enable[dev] || port[dev] == SNDRV_AUTO_PORT)
|
||||
continue;
|
||||
if (is_isapnp_selected(dev))
|
||||
continue;
|
||||
if (!snd_sb16_probe(dev, NULL, NULL)) {
|
||||
cards++;
|
||||
if ((err = platform_driver_register(&snd_sb16_nonpnp_driver)) < 0)
|
||||
return err;
|
||||
|
||||
for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
|
||||
struct platform_device *device;
|
||||
if (is_isapnp_selected(i))
|
||||
continue;
|
||||
device = platform_device_register_simple(SND_SB16_DRIVER,
|
||||
i, NULL, 0);
|
||||
if (IS_ERR(device)) {
|
||||
err = PTR_ERR(device);
|
||||
platform_driver_unregister(&snd_sb16_nonpnp_driver);
|
||||
return err;
|
||||
}
|
||||
#ifdef MODULE
|
||||
snd_printk(KERN_ERR "Sound Blaster 16+ soundcard #%i not found at 0x%lx or device busy\n", dev, port[dev]);
|
||||
#endif
|
||||
cards++;
|
||||
}
|
||||
/* legacy auto configured cards */
|
||||
i = snd_legacy_auto_probe(possible_ports, snd_sb16_probe_legacy_port);
|
||||
if (i > 0)
|
||||
cards += i;
|
||||
|
||||
#ifdef CONFIG_PNP
|
||||
/* PnP cards at last */
|
||||
i = pnp_register_card_driver(&sb16_pnpc_driver);
|
||||
if (i >0)
|
||||
if (i > 0)
|
||||
cards += i;
|
||||
#endif
|
||||
|
||||
|
|
@ -634,6 +718,7 @@ static int __init alsa_card_sb16_init(void)
|
|||
#ifdef CONFIG_PNP
|
||||
pnp_unregister_card_driver(&sb16_pnpc_driver);
|
||||
#endif
|
||||
platform_driver_unregister(&snd_sb16_nonpnp_driver);
|
||||
#ifdef MODULE
|
||||
snd_printk(KERN_ERR "Sound Blaster 16 soundcard not found or device busy\n");
|
||||
#ifdef SNDRV_SBAWE_EMU8000
|
||||
|
|
@ -649,14 +734,10 @@ static int __init alsa_card_sb16_init(void)
|
|||
|
||||
static void __exit alsa_card_sb16_exit(void)
|
||||
{
|
||||
int dev;
|
||||
|
||||
#ifdef CONFIG_PNP
|
||||
/* PnP cards first */
|
||||
pnp_unregister_card_driver(&sb16_pnpc_driver);
|
||||
#endif
|
||||
for (dev = 0; dev < SNDRV_CARDS; dev++)
|
||||
snd_card_free(snd_sb16_legacy[dev]);
|
||||
platform_driver_unregister(&snd_sb16_nonpnp_driver);
|
||||
}
|
||||
|
||||
module_init(alsa_card_sb16_init)
|
||||
|
|
|
|||
Loading…
Reference in a new issue