[ALSA] dbri: conversion to OpenFirmware framework
This patch converts the dbri driver to use OF framework. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>hifive-unleashed-5.1
Krzysztof Helt
Jaroslav Kysela
parent
f545714ece
commit
afeacfd5f7
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@ -66,6 +66,7 @@
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#include <sound/control.h>
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#include <sound/initval.h>
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#include <asm/prom.h>
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#include <asm/sbus.h>
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#include <asm/atomic.h>
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@ -296,8 +297,6 @@ struct dbri_streaminfo {
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/* This structure holds the information for both chips (DBRI & CS4215) */
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struct snd_dbri {
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struct snd_card *card; /* ALSA card */
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int regs_size, irq; /* Needed for unload */
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struct sbus_dev *sdev; /* SBUS device info */
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spinlock_t lock;
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@ -318,8 +317,6 @@ struct snd_dbri {
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struct cs4215 mm; /* mmcodec special info */
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/* per stream (playback/record) info */
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struct dbri_streaminfo stream_info[DBRI_NO_STREAMS];
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struct snd_dbri *next;
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};
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#define DBRI_MAX_VOLUME 63 /* Output volume */
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@ -571,8 +568,6 @@ struct snd_dbri {
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#define DBRI_STREAM(dbri, substream) \
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&dbri->stream_info[DBRI_STREAMNO(substream)]
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static struct snd_dbri *dbri_list; /* All DBRI devices */
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/*
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* Short data pipes transmit LSB first. The CS4215 receives MSB first. Grrr.
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* So we have to reverse the bits. Note: not all bit lengths are supported
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@ -748,7 +743,7 @@ static void dbri_reset(struct snd_dbri *dbri)
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}
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/* Lock must not be held before calling this */
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static void __init dbri_initialize(struct snd_dbri *dbri)
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static void __devinit dbri_initialize(struct snd_dbri *dbri)
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{
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s32 *cmd;
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u32 dma_addr;
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@ -1308,7 +1303,7 @@ to the DBRI via the CHI interface and few of the DBRI's PIO pins.
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* Lock must not be held before calling it.
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*/
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static __init void cs4215_setup_pipes(struct snd_dbri *dbri)
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static __devinit void cs4215_setup_pipes(struct snd_dbri *dbri)
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{
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unsigned long flags;
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@ -1341,7 +1336,7 @@ static __init void cs4215_setup_pipes(struct snd_dbri *dbri)
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dbri_cmdwait(dbri);
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}
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static __init int cs4215_init_data(struct cs4215 *mm)
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static __devinit int cs4215_init_data(struct cs4215 *mm)
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{
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/*
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* No action, memory resetting only.
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@ -1633,7 +1628,7 @@ static int cs4215_prepare(struct snd_dbri *dbri, unsigned int rate,
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/*
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*
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*/
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static __init int cs4215_init(struct snd_dbri *dbri)
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static __devinit int cs4215_init(struct snd_dbri *dbri)
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{
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u32 reg2 = sbus_readl(dbri->regs + REG2);
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dprintk(D_MM, "cs4215_init: reg2=0x%x\n", reg2);
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@ -2218,12 +2213,12 @@ static struct snd_pcm_ops snd_dbri_ops = {
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.pointer = snd_dbri_pointer,
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};
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static int __devinit snd_dbri_pcm(struct snd_dbri *dbri)
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static int __devinit snd_dbri_pcm(struct snd_card *card)
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{
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struct snd_pcm *pcm;
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int err;
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if ((err = snd_pcm_new(dbri->card,
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if ((err = snd_pcm_new(card,
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/* ID */ "sun_dbri",
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/* device */ 0,
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/* playback count */ 1,
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@ -2234,9 +2229,9 @@ static int __devinit snd_dbri_pcm(struct snd_dbri *dbri)
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_dbri_ops);
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_dbri_ops);
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pcm->private_data = dbri;
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pcm->private_data = card->private_data;
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pcm->info_flags = 0;
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strcpy(pcm->name, dbri->card->shortname);
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strcpy(pcm->name, card->shortname);
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if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm,
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SNDRV_DMA_TYPE_CONTINUOUS,
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@ -2422,14 +2417,14 @@ static struct snd_kcontrol_new dbri_controls[] __devinitdata = {
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CS4215_SINGLE("Mic boost", 4, 4, 1, 1)
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};
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static int __init snd_dbri_mixer(struct snd_dbri *dbri)
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static int __devinit snd_dbri_mixer(struct snd_card *card)
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{
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struct snd_card *card;
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int idx, err;
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struct snd_dbri *dbri;
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snd_assert(dbri != NULL && dbri->card != NULL, return -EINVAL);
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snd_assert(card != NULL && card->private_data != NULL, return -EINVAL);
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dbri = card->private_data;
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card = dbri->card;
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strcpy(card->mixername, card->shortname);
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for (idx = 0; idx < ARRAY_SIZE(dbri_controls); idx++) {
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@ -2485,15 +2480,16 @@ static void dbri_debug_read(struct snd_info_entry *entry,
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}
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#endif
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void snd_dbri_proc(struct snd_dbri *dbri)
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void __devinit snd_dbri_proc(struct snd_card *card)
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{
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struct snd_dbri *dbri = card->private_data;
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struct snd_info_entry *entry;
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if (!snd_card_proc_new(dbri->card, "regs", &entry))
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if (!snd_card_proc_new(card, "regs", &entry))
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snd_info_set_text_ops(entry, dbri, dbri_regs_read);
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#ifdef DBRI_DEBUG
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if (!snd_card_proc_new(dbri->card, "debug", &entry)) {
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if (!snd_card_proc_new(card, "debug", &entry)) {
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snd_info_set_text_ops(entry, dbri, dbri_debug_read);
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entry->mode = S_IFREG | S_IRUGO; /* Readable only. */
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}
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@ -2507,17 +2503,16 @@ void snd_dbri_proc(struct snd_dbri *dbri)
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*/
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static void snd_dbri_free(struct snd_dbri *dbri);
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static int __init snd_dbri_create(struct snd_card *card,
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static int __devinit snd_dbri_create(struct snd_card *card,
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struct sbus_dev *sdev,
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struct linux_prom_irqs *irq, int dev)
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int irq, int dev)
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{
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struct snd_dbri *dbri = card->private_data;
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int err;
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spin_lock_init(&dbri->lock);
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dbri->card = card;
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dbri->sdev = sdev;
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dbri->irq = irq->pri;
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dbri->irq = irq;
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dbri->dma = sbus_alloc_consistent(sdev, sizeof(struct dbri_dma),
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&dbri->dma_dvma);
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@ -2555,9 +2550,6 @@ static int __init snd_dbri_create(struct snd_card *card,
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return err;
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}
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dbri->next = dbri_list;
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dbri_list = dbri;
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return 0;
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}
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@ -2577,20 +2569,19 @@ static void snd_dbri_free(struct snd_dbri *dbri)
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(void *)dbri->dma, dbri->dma_dvma);
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}
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static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
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static int __devinit dbri_probe(struct of_device *of_dev,
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const struct of_device_id *match)
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{
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struct sbus_dev *sdev = to_sbus_device(&of_dev->dev);
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struct snd_dbri *dbri;
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struct linux_prom_irqs irq;
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int irq;
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struct resource *rp;
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struct snd_card *card;
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static int dev = 0;
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int err;
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if (sdev->prom_name[9] < 'e') {
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printk(KERN_ERR "DBRI: unsupported chip version %c found.\n",
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sdev->prom_name[9]);
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return -EIO;
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}
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dprintk(D_GEN, "DBRI: Found %s in SBUS slot %d\n",
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sdev->prom_name, sdev->slot);
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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@ -2599,10 +2590,9 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
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return -ENOENT;
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}
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err = prom_getproperty(prom_node, "intr", (char *)&irq, sizeof(irq));
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if (err < 0) {
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printk(KERN_ERR "DBRI-%d: Firmware node lacks IRQ property.\n",
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dev);
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irq = sdev->irqs[0];
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if (irq <= 0) {
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printk(KERN_ERR "DBRI-%d: No IRQ.\n", dev);
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return -ENODEV;
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}
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@ -2616,24 +2606,26 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
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rp = &sdev->resource[0];
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sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
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card->shortname,
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rp->flags & 0xffL, (unsigned long long)rp->start, irq.pri);
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rp->flags & 0xffL, (unsigned long long)rp->start, irq);
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if ((err = snd_dbri_create(card, sdev, &irq, dev)) < 0) {
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err = snd_dbri_create(card, sdev, irq, dev);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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dbri = card->private_data;
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err = snd_dbri_pcm(dbri);
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err = snd_dbri_pcm(card);
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if (err < 0)
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goto _err;
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err = snd_dbri_mixer(dbri);
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err = snd_dbri_mixer(card);
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if (err < 0)
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goto _err;
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/* /proc file handling */
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snd_dbri_proc(dbri);
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snd_dbri_proc(card);
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dev_set_drvdata(&of_dev->dev, card);
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err = snd_card_register(card);
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if (err < 0)
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@ -2652,43 +2644,46 @@ _err:
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return err;
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}
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static int __devexit dbri_remove(struct of_device *dev)
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{
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struct snd_card *card = dev_get_drvdata(&dev->dev);
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snd_dbri_free(card->private_data);
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snd_card_free(card);
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dev_set_drvdata(&dev->dev, NULL);
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return 0;
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}
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static struct of_device_id dbri_match[] = {
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{
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.name = "SUNW,DBRIe",
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},
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{
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.name = "SUNW,DBRIf",
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, dbri_match);
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static struct of_platform_driver dbri_sbus_driver = {
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.name = "dbri",
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.match_table = dbri_match,
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.probe = dbri_probe,
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.remove = __devexit_p(dbri_remove),
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};
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/* Probe for the dbri chip and then attach the driver. */
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static int __init dbri_init(void)
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{
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struct sbus_bus *sbus;
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struct sbus_dev *sdev;
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int found = 0;
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/* Probe each SBUS for the DBRI chip(s). */
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for_all_sbusdev(sdev, sbus) {
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/*
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* The version is coded in the last character
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*/
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if (!strncmp(sdev->prom_name, "SUNW,DBRI", 9)) {
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dprintk(D_GEN, "DBRI: Found %s in SBUS slot %d\n",
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sdev->prom_name, sdev->slot);
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if (dbri_attach(sdev->prom_node, sdev) == 0)
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found++;
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}
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}
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return (found > 0) ? 0 : -EIO;
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return of_register_driver(&dbri_sbus_driver, &sbus_bus_type);
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}
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static void __exit dbri_exit(void)
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{
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struct snd_dbri *this = dbri_list;
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while (this != NULL) {
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struct snd_dbri *next = this->next;
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struct snd_card *card = this->card;
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snd_dbri_free(this);
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snd_card_free(card);
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this = next;
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}
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dbri_list = NULL;
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of_unregister_driver(&dbri_sbus_driver);
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}
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module_init(dbri_init);
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