From afc88ad6b38797aeec4d635140099ace077df587 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 30 Aug 2008 00:13:55 -0700 Subject: cs4231: Convert to EBUS side to pure OF driver. Signed-off-by: David S. Miller --- sound/sparc/cs4231.c | 172 ++++++++++++++++----------------------------------- 1 file changed, 54 insertions(+), 118 deletions(-) (limited to 'sound/sparc') diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c index e6dba4f..cdbfae9 100644 --- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -35,7 +35,6 @@ #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64) #define EBUS_SUPPORT #include -#include #include #endif @@ -71,8 +70,6 @@ struct cs4231_dma_control { int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len); unsigned int (*address)(struct cs4231_dma_control *dma_cont); - void (*preallocate)(struct snd_cs4231 *chip, - struct snd_pcm *pcm); #ifdef EBUS_SUPPORT struct ebus_dma_info ebus_info; #endif @@ -115,21 +112,12 @@ struct snd_cs4231 { struct mutex mce_mutex; /* mutex for mce register */ struct mutex open_mutex; /* mutex for ALSA open/close */ - union { -#ifdef SBUS_SUPPORT - struct of_device *op; -#endif -#ifdef EBUS_SUPPORT - struct pci_dev *pdev; -#endif - } dev_u; + struct of_device *op; unsigned int irq[2]; unsigned int regs_size; struct snd_cs4231 *next; }; -static struct snd_cs4231 *cs4231_list; - /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for * now.... -DaveM */ @@ -268,27 +256,19 @@ static unsigned char snd_cs4231_original_image[32] = static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr) { -#ifdef EBUS_SUPPORT if (cp->flags & CS4231_FLAG_EBUS) return readb(reg_addr); else -#endif -#ifdef SBUS_SUPPORT return sbus_readb(reg_addr); -#endif } static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, void __iomem *reg_addr) { -#ifdef EBUS_SUPPORT if (cp->flags & CS4231_FLAG_EBUS) return writeb(val, reg_addr); else -#endif -#ifdef SBUS_SUPPORT return sbus_writeb(val, reg_addr); -#endif } /* @@ -1259,7 +1239,9 @@ static int __init snd_cs4231_pcm(struct snd_card *card) pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; strcpy(pcm->name, "CS4231"); - chip->p_dma.preallocate(chip, pcm); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + &chip->op->dev, + 64 * 1024, 128 * 1024); chip->pcm = pcm; @@ -1627,8 +1609,7 @@ static int __init cs4231_attach_finish(struct snd_card *card) if (err < 0) goto out_err; - chip->next = cs4231_list; - cs4231_list = chip; + dev_set_drvdata(&chip->op->dev, chip); dev++; return 0; @@ -1783,20 +1764,13 @@ static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont) return sbus_readl(base->regs + base->dir + APCVA); } -static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm) -{ - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - &chip->dev_u.op->dev, - 64 * 1024, 128 * 1024); -} - /* * Init and exit routines */ static int snd_cs4231_sbus_free(struct snd_cs4231 *chip) { - struct of_device *op = chip->dev_u.op; + struct of_device *op = chip->op; if (chip->irq[0]) free_irq(chip->irq[0], chip); @@ -1830,7 +1804,7 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card, spin_lock_init(&chip->p_dma.sbus_info.lock); mutex_init(&chip->mce_mutex); mutex_init(&chip->open_mutex); - chip->dev_u.op = op; + chip->op = op; chip->regs_size = resource_size(&op->resource[0]); memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image)); @@ -1851,13 +1825,11 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card, chip->p_dma.enable = sbus_dma_enable; chip->p_dma.request = sbus_dma_request; chip->p_dma.address = sbus_dma_addr; - chip->p_dma.preallocate = sbus_dma_preallocate; chip->c_dma.prepare = sbus_dma_prepare; chip->c_dma.enable = sbus_dma_enable; chip->c_dma.request = sbus_dma_request; chip->c_dma.address = sbus_dma_addr; - chip->c_dma.preallocate = sbus_dma_preallocate; if (request_irq(op->irqs[0], snd_cs4231_sbus_interrupt, IRQF_SHARED, "cs4231", chip)) { @@ -1883,16 +1855,12 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card, return 0; } -static int __devinit cs4231_probe(struct of_device *op, const struct of_device_id *match) +static int __devinit cs4231_sbus_probe(struct of_device *op, const struct of_device_id *match) { struct resource *rp = &op->resource[0]; struct snd_card *card; int err; - if (strcmp(op->node->parent->name, "sbus") && - strcmp(op->node->parent->name, "sbi")) - return -ENODEV; - err = cs4231_attach_begin(&card); if (err) return err; @@ -1956,30 +1924,25 @@ static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont) return ebus_dma_addr(&dma_cont->ebus_info); } -static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm) -{ - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - snd_dma_pci_data(chip->dev_u.pdev), - 64*1024, 128*1024); -} - /* * Init and exit routines */ static int snd_cs4231_ebus_free(struct snd_cs4231 *chip) { + struct of_device *op = chip->op; + if (chip->c_dma.ebus_info.regs) { ebus_dma_unregister(&chip->c_dma.ebus_info); - iounmap(chip->c_dma.ebus_info.regs); + of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10); } if (chip->p_dma.ebus_info.regs) { ebus_dma_unregister(&chip->p_dma.ebus_info); - iounmap(chip->p_dma.ebus_info.regs); + of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10); } if (chip->port) - iounmap(chip->port); + of_iounmap(&op->resource[0], chip->port, 0x10); return 0; } @@ -1996,7 +1959,7 @@ static struct snd_device_ops snd_cs4231_ebus_dev_ops = { }; static int __init snd_cs4231_ebus_create(struct snd_card *card, - struct linux_ebus_device *edev, + struct of_device *op, int dev) { struct snd_cs4231 *chip = card->private_data; @@ -2008,35 +1971,35 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card, mutex_init(&chip->mce_mutex); mutex_init(&chip->open_mutex); chip->flags |= CS4231_FLAG_EBUS; - chip->dev_u.pdev = edev->bus->self; + chip->op = op; memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image)); strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)"); chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback; chip->c_dma.ebus_info.client_cookie = chip; - chip->c_dma.ebus_info.irq = edev->irqs[0]; + chip->c_dma.ebus_info.irq = op->irqs[0]; strcpy(chip->p_dma.ebus_info.name, "cs4231(play)"); chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback; chip->p_dma.ebus_info.client_cookie = chip; - chip->p_dma.ebus_info.irq = edev->irqs[1]; + chip->p_dma.ebus_info.irq = op->irqs[1]; chip->p_dma.prepare = _ebus_dma_prepare; chip->p_dma.enable = _ebus_dma_enable; chip->p_dma.request = _ebus_dma_request; chip->p_dma.address = _ebus_dma_addr; - chip->p_dma.preallocate = _ebus_dma_preallocate; chip->c_dma.prepare = _ebus_dma_prepare; chip->c_dma.enable = _ebus_dma_enable; chip->c_dma.request = _ebus_dma_request; chip->c_dma.address = _ebus_dma_addr; - chip->c_dma.preallocate = _ebus_dma_preallocate; - chip->port = ioremap(edev->resource[0].start, 0x10); - chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10); - chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10); + chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231"); + chip->p_dma.ebus_info.regs = + of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma"); + chip->c_dma.ebus_info.regs = + of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma"); if (!chip->port || !chip->p_dma.ebus_info.regs || !chip->c_dma.ebus_info.regs) { snd_cs4231_ebus_free(chip); @@ -2084,7 +2047,7 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card, return 0; } -static int __init cs4231_ebus_attach(struct linux_ebus_device *edev) +static int __devinit cs4231_ebus_probe(struct of_device *op, const struct of_device_id *match) { struct snd_card *card; int err; @@ -2095,10 +2058,10 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev) sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname, - edev->resource[0].start, - edev->irqs[0]); + op->resource[0].start, + op->irqs[0]); - err = snd_cs4231_ebus_create(card, edev, dev); + err = snd_cs4231_ebus_create(card, op, dev); if (err < 0) { snd_card_free(card); return err; @@ -2108,11 +2071,37 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev) } #endif +static int __devinit cs4231_probe(struct of_device *op, const struct of_device_id *match) +{ +#ifdef EBUS_SUPPORT + if (!strcmp(op->node->parent->name, "ebus")) + return cs4231_ebus_probe(op, match); +#endif #ifdef SBUS_SUPPORT + if (!strcmp(op->node->parent->name, "sbus") || + !strcmp(op->node->parent->name, "sbi")) + return cs4231_sbus_probe(op, match); +#endif + return -ENODEV; +} + +static int __devexit cs4231_remove(struct of_device *op) +{ + struct snd_cs4231 *chip = dev_get_drvdata(&op->dev); + + snd_card_free(chip->card); + + return 0; +} + static struct of_device_id cs4231_match[] = { { .name = "SUNW,CS4231", }, + { + .name = "audio", + .compatible = "SUNW,CS4231", + }, {}, }; @@ -2122,70 +2111,17 @@ static struct of_platform_driver cs4231_driver = { .name = "audio", .match_table = cs4231_match, .probe = cs4231_probe, + .remove = __devexit_p(cs4231_remove), }; -#endif static int __init cs4231_init(void) { -#ifdef EBUS_SUPPORT - struct linux_ebus *ebus; - struct linux_ebus_device *edev; -#endif - int found; - - found = 0; - -#ifdef SBUS_SUPPORT - { - int err = of_register_driver(&cs4231_driver, &of_bus_type); - if (err) - return err; - } -#endif -#ifdef EBUS_SUPPORT - for_each_ebus(ebus) { - for_each_ebusdev(edev, ebus) { - int match = 0; - - if (!strcmp(edev->prom_node->name, "SUNW,CS4231")) { - match = 1; - } else if (!strcmp(edev->prom_node->name, "audio")) { - const char *compat; - - compat = of_get_property(edev->prom_node, - "compatible", NULL); - if (compat && !strcmp(compat, "SUNW,CS4231")) - match = 1; - } - - if (match && - cs4231_ebus_attach(edev) == 0) - found++; - } - } -#endif - - - return 0; + return of_register_driver(&cs4231_driver, &of_bus_type); } static void __exit cs4231_exit(void) { - struct snd_cs4231 *p = cs4231_list; - -#ifdef SBUS_SUPPORT of_unregister_driver(&cs4231_driver); -#endif - - while (p != NULL) { - struct snd_cs4231 *next = p->next; - - snd_card_free(p->card); - - p = next; - } - - cs4231_list = NULL; } module_init(cs4231_init); -- cgit v1.1