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[alsa-devel] [PATCH] Try to make our poor little ALS4000 driver worthy of its copious public specs (first step)
by Andreas Mohr 20 Aug '08

20 Aug '08

[with not-quite-so-unintentional CCs added] Hi, there you have it: Linux developers are hypocrites ;) Never omitting any opportunity to complain about missing vendor cooperation, but what do they do once people actually do publish ample specs? - yeah, you got that right: NOTHING!! Let's try to change that, at least one bit at a time. ;) ChangeLog: - use specs-derived register name enums instead of open-coded numeric values, for better understanding of things - fix naming confusion ("gcr" was _NOT_ the GCR register stuff, but instead the io _base_ which has multiplexed _access_ to GCR config space, at _sub_ registers 0x08 and 0x0c) - add FIXME comments about a race condition and MPU401 features Oh, and I chose an abbreviated "ALS4K" prefix since I would have gotten finger cramps otherwise. Patch created on 2.6.27-rc1-git4 (no als4000.c changes up to -rc3, verified), pushed through checkpatch.pl, verified on my ALS4000 card. More work to follow... e.g. would be nice to get audio wakeup things to work, since this would probably be the first (if admittedly crappy) sound card/driver combo on Linux to support such features, thus a nice broadening of Linux capabilities. Thanks! Signed-off-by: Andreas Mohr <andi(a)lisas.de> --- sound/pci/als4000.c.org 2008-08-18 21:15:37.000000000 +0200 +++ sound/pci/als4000.c 2008-08-18 22:12:27.000000000 +0200 @@ -60,6 +60,7 @@ * * ToDo: * - Proper shared IRQ handling? + * - by default, don't enable legacy game and use PCI game I/O * - power management? (card can do voice wakeup according to datasheet!!) */ @@ -107,7 +108,7 @@ struct snd_card_als4000 { /* most frequent access first */ - unsigned long gcr; + unsigned long iobase; struct pci_dev *pci; struct snd_sb *chip; #ifdef SUPPORT_JOYSTICK @@ -122,24 +123,89 @@ MODULE_DEVICE_TABLE(pci, snd_als4000_ids); -static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val) +enum als4k_iobase_t { + /* IOx: B == Byte, W = Word, D = DWord */ + ALS4K_IOD_00_AC97_ACCESS = 0x00, + ALS4K_IOW_04_AC97_READ = 0x04, + ALS4K_IOB_06_AC97_STATUS = 0x06, + ALS4K_IOB_07_IRQSTATUS = 0x07, + ALS4K_IOD_08_GCR_DATA = 0x08, + ALS4K_IOB_0C_GCR_INDEX = 0x0c, + ALS4K_IOB_0E_SB_MPU_IRQ = 0x0e, + ALS4K_IOB_10_ADLIB_ADDR0 = 0x10, + ALS4K_IOB_11_ADLIB_ADDR1 = 0x11, + ALS4K_IOB_12_ADLIB_ADDR2 = 0x12, + ALS4K_IOB_13_ADLIB_ADDR3 = 0x13, + ALS4K_IOB_14_MIXER_INDEX = 0x14, + ALS4K_IOB_15_MIXER_DATA = 0x15, + ALS4K_IOB_16_ESP_RST_PORT = 0x16, + ALS4K_IOB_16_CR1E_ACK_PORT = 0x16, /* 2nd function */ + ALS4K_IOB_18_OPL_ADDR0 = 0x18, + ALS4K_IOB_19_OPL_ADDR1 = 0x19, + ALS4K_IOB_1A_ESP_RD_DATA = 0x1a, + ALS4K_IOB_1C_ESP_CMD_DATA = 0x1c, + ALS4K_IOB_1C_ESP_WR_STATUS = 0x1c, /* 2nd function */ + ALS4K_IOB_1E_ESP_RD_STATUS8 = 0x1e, + ALS4K_IOB_1F_ESP_RD_STATUS16 = 0x1f, + ALS4K_IOB_20_ESP_GAMEPORT_200 = 0x20, + ALS4K_IOB_21_ESP_GAMEPORT_201 = 0x21, + ALS4K_IOB_30_MIDI_DATA = 0x30, + ALS4K_IOB_31_MIDI_STATUS = 0x31, + ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */ +}; + +enum als4k_gcr_t { + /* all registers 32bit wide */ + ALS4K_GCR_8C_MISC_CTRL = 0x8c, + ALS4K_GCR_90_TEST_MODE_REG = 0x90, + ALS4K_GCR_91_DMA0_ADDR = 0x91, + ALS4K_GCR_92_DMA0_MODE_COUNT = 0x92, + ALS4K_GCR_93_DMA1_ADDR = 0x93, + ALS4K_GCR_94_DMA1_MODE_COUNT = 0x94, + ALS4K_GCR_95_DMA3_ADDR = 0x95, + ALS4K_GCR_96_DMA3_MODE_COUNT = 0x96, + ALS4K_GCR_99_DMA_EMULATION_CTRL = 0x99, + ALS4K_GCR_A0_FIFO1_CURRENT_ADDR = 0xa0, + ALS4K_GCR_A1_FIFO1_STATUS_BYTECOUNT = 0xa1, + ALS4K_GCR_A2_FIFO2_PCIADDR = 0xa2, + ALS4K_GCR_A3_FIFO2_COUNT = 0xa3, + ALS4K_GCR_A4_FIFO2_CURRENT_ADDR = 0xa4, + ALS4K_GCR_A5_FIFO1_STATUS_BYTECOUNT = 0xa5, + ALS4K_GCR_A6_PM_CTRL = 0xa6, + ALS4K_GCR_A7_PCI_ACCESS_STORAGE = 0xa7, + ALS4K_GCR_A8_LEGACY_CFG1 = 0xa8, + ALS4K_GCR_A9_LEGACY_CFG2 = 0xa9, + ALS4K_GCR_FF_DUMMY_SCRATCH = 0xff, +}; + +enum als4k_gcr_8c_t { + ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE = 0x8000, + ALS4K_GCR_8C_CHIP_REV_MASK = 0xf0000 +}; + +static inline void snd_als4000_gcr_write_addr(unsigned long iobase, + enum als4k_gcr_t reg, + u32 val) { - outb(reg, port+0x0c); - outl(val, port+0x08); + outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX); + outl(val, iobase + ALS4K_IOD_08_GCR_DATA); } -static inline void snd_als4000_gcr_write(struct snd_sb *sb, u32 reg, u32 val) +static inline void snd_als4000_gcr_write(struct snd_sb *sb, + enum als4k_gcr_t reg, + u32 val) { snd_als4000_gcr_write_addr(sb->alt_port, reg, val); } -static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg) +static inline u32 snd_als4000_gcr_read_addr(unsigned long iobase, + enum als4k_gcr_t reg) { - outb(reg, port+0x0c); - return inl(port+0x08); + outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX); + return inl(iobase + ALS4K_IOD_08_GCR_DATA); } -static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, u32 reg) +static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg) { return snd_als4000_gcr_read_addr(sb->alt_port, reg); } @@ -156,15 +222,17 @@ static inline void snd_als4000_set_capture_dma(struct snd_sb *chip, dma_addr_t addr, unsigned size) { - snd_als4000_gcr_write(chip, 0xa2, addr); - snd_als4000_gcr_write(chip, 0xa3, (size-1)); + snd_als4000_gcr_write(chip, ALS4K_GCR_A2_FIFO2_PCIADDR, addr); + snd_als4000_gcr_write(chip, ALS4K_GCR_A3_FIFO2_COUNT, (size-1)); } static inline void snd_als4000_set_playback_dma(struct snd_sb *chip, - dma_addr_t addr, unsigned size) + dma_addr_t addr, + unsigned size) { - snd_als4000_gcr_write(chip, 0x91, addr); - snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000); + snd_als4000_gcr_write(chip, ALS4K_GCR_91_DMA0_ADDR, addr); + snd_als4000_gcr_write(chip, ALS4K_GCR_92_DMA0_MODE_COUNT, + (size-1)|0x180000); } #define ALS4000_FORMAT_SIGNED (1<<0) @@ -305,6 +373,12 @@ struct snd_sb *chip = snd_pcm_substream_chip(substream); int result = 0; + /* FIXME race condition in here!!! + chip->mode non-atomic update gets consistently protected + by reg_lock always, _except_ for this place!! + Probably need to take reg_lock as outer (or inner??) lock, too. + (or serialize both lock operations? probably not, though... - racy?) + */ spin_lock(&chip->mixer_lock); switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -356,7 +430,8 @@ unsigned int result; spin_lock(&chip->reg_lock); - result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; + result = snd_als4000_gcr_read(chip, ALS4K_GCR_A4_FIFO2_CURRENT_ADDR); + result &= 0xffff; spin_unlock(&chip->reg_lock); return bytes_to_frames( substream->runtime, result ); } @@ -367,7 +442,8 @@ unsigned result; spin_lock(&chip->reg_lock); - result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; + result = snd_als4000_gcr_read(chip, ALS4K_GCR_A0_FIFO1_CURRENT_ADDR); + result &= 0xffff; spin_unlock(&chip->reg_lock); return bytes_to_frames( substream->runtime, result ); } @@ -376,12 +452,13 @@ * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not). * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ - * register (alt_port + 0x0e). Probably something could be optimized here to - * query/write one register only... + * register (alt_port + ALS4K_IOB_0E_SB_MPU_IRQ). Probably something + * could be optimized here to query/write one register only... * And even if both registers need to be queried, then there's still the * question of whether it's actually correct to ACK PCI IRQ before reading * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear* * SB IRQ status. + * (hmm, page 38 mentions it the other way around!) * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS?? * */ static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id) @@ -391,7 +468,7 @@ unsigned sb_status; /* find out which bit of the ALS4000 produced the interrupt */ - gcr_status = inb(chip->alt_port + 0xe); + gcr_status = inb(chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ); if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */ snd_pcm_period_elapsed(chip->playback_substream); @@ -400,7 +477,7 @@ if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */ snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); /* release the gcr */ - outb(gcr_status, chip->alt_port + 0xe); + outb(gcr_status, chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ); spin_lock(&chip->mixer_lock); sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); @@ -543,25 +620,25 @@ /******************************************************************/ -static void snd_als4000_set_addr(unsigned long gcr, - unsigned int sb, - unsigned int mpu, - unsigned int opl, - unsigned int game) -{ - u32 confA = 0; - u32 confB = 0; - - if (mpu > 0) - confB |= (mpu | 1) << 16; - if (sb > 0) - confB |= (sb | 1); - if (game > 0) - confA |= (game | 1) << 16; - if (opl > 0) - confA |= (opl | 1); - snd_als4000_gcr_write_addr(gcr, 0xa8, confA); - snd_als4000_gcr_write_addr(gcr, 0xa9, confB); +static void snd_als4000_set_addr(unsigned long iobase, + unsigned int sb_io, + unsigned int mpu_io, + unsigned int opl_io, + unsigned int game_io) +{ + u32 cfg1 = 0; + u32 cfg2 = 0; + + if (mpu_io > 0) + cfg2 |= (mpu_io | 1) << 16; + if (sb_io > 0) + cfg2 |= (sb_io | 1); + if (game_io > 0) + cfg1 |= (game_io | 1) << 16; + if (opl_io > 0) + cfg1 |= (opl_io | 1); + snd_als4000_gcr_write_addr(iobase, ALS4K_GCR_A8_LEGACY_CFG1, cfg1); + snd_als4000_gcr_write_addr(iobase, ALS4K_GCR_A9_LEGACY_CFG2, cfg2); } static void snd_als4000_configure(struct snd_sb *chip) @@ -579,12 +656,15 @@ spin_unlock_irq(&chip->mixer_lock); spin_lock_irq(&chip->reg_lock); - /* magic number. Enables interrupts(?) */ - snd_als4000_gcr_write(chip, 0x8c, 0x28000); - for(i = 0x91; i <= 0x96; ++i) + /* enable interrupts */ + snd_als4000_gcr_write(chip, ALS4K_GCR_8C_MISC_CTRL, + ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE); + + for (i = ALS4K_GCR_91_DMA0_ADDR; i <= ALS4K_GCR_96_DMA3_MODE_COUNT; ++i) snd_als4000_gcr_write(chip, i, 0); - snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99)); + snd_als4000_gcr_write(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL, + snd_als4000_gcr_read(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL)); spin_unlock_irq(&chip->reg_lock); } @@ -628,7 +708,7 @@ gameport_set_port_data(gp, r); /* Enable legacy joystick port */ - snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); + snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); gameport_register_port(acard->gameport); @@ -643,7 +723,9 @@ gameport_unregister_port(acard->gameport); acard->gameport = NULL; - snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */ + /* disable joystick */ + snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); + release_and_free_resource(r); } } @@ -654,10 +736,10 @@ static void snd_card_als4000_free( struct snd_card *card ) { - struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data; + struct snd_card_als4000 *acard = card->private_data; /* make sure that interrupts are disabled */ - snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0); + snd_als4000_gcr_write_addr(acard->iobase, ALS4K_GCR_8C_MISC_CTRL, 0); /* free resources */ snd_als4000_free_gameport(acard); pci_release_regions(acard->pci); @@ -670,7 +752,7 @@ static int dev; struct snd_card *card; struct snd_card_als4000 *acard; - unsigned long gcr; + unsigned long iobase; struct snd_sb *chip; struct snd_opl3 *opl3; unsigned short word; @@ -699,7 +781,7 @@ pci_disable_device(pci); return err; } - gcr = pci_resource_start(pci, 0); + iobase = pci_resource_start(pci, 0); pci_read_config_word(pci, PCI_COMMAND, &word); pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); @@ -713,16 +795,16 @@ return -ENOMEM; } - acard = (struct snd_card_als4000 *)card->private_data; + acard = card->private_data; acard->pci = pci; - acard->gcr = gcr; + acard->iobase = iobase; card->private_free = snd_card_als4000_free; /* disable all legacy ISA stuff */ - snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); + snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); if ((err = snd_sbdsp_create(card, - gcr + 0x10, + iobase + ALS4K_IOB_10_ADLIB_ADDR0, pci->irq, snd_als4000_interrupt, -1, @@ -734,7 +816,7 @@ acard->chip = chip; chip->pci = pci; - chip->alt_port = gcr; + chip->alt_port = iobase; snd_card_set_dev(card, &pci->dev); snd_als4000_configure(chip); @@ -745,11 +827,16 @@ card->shortname, chip->alt_port, chip->irq); if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, - gcr+0x30, MPU401_INFO_INTEGRATED, + iobase + ALS4K_IOB_30_MIDI_DATA, + MPU401_INFO_INTEGRATED, pci->irq, 0, &chip->rmidi)) < 0) { - printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30); + printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", + iobase + ALS4K_IOB_30_MIDI_DATA); goto out_err; } + /* FIXME: ALS4000 has interesting MPU401 configuration features + * at CR 0x1A (pass-thru / UART switching, fast MIDI clock, etc.), + * however there doesn't seem to be an ALSA API for this... */ if ((err = snd_als4000_pcm(chip, 0)) < 0) { goto out_err; @@ -758,10 +845,13 @@ goto out_err; } - if (snd_opl3_create(card, gcr+0x10, gcr+0x12, + if (snd_opl3_create(card, + iobase + ALS4K_IOB_10_ADLIB_ADDR0, + iobase + ALS4K_IOB_12_ADLIB_ADDR2, OPL3_HW_AUTO, 1, &opl3) < 0) { printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n", - gcr+0x10, gcr+0x12 ); + iobase + ALS4K_IOB_10_ADLIB_ADDR0, + iobase + ALS4K_IOB_12_ADLIB_ADDR2); } else { if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { goto out_err; @@ -831,13 +921,13 @@ #ifdef SUPPORT_JOYSTICK if (acard->gameport) - snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); + snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); #endif snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } -#endif +#endif /* CONFIG_PM */ static struct pci_driver driver = {

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[alsa-devel] pcm write from posix threads
by Brian Rhodes 20 Aug '08

20 Aug '08

When calling snd_pcm_write* from a thread how do you safely cancel the thread? I've tried masking the signals which are used in alsa lib, yet I am getting a segfault on pthread_exit(). My thread is looping doing the following. testcancel snd_pcm_wait snd_pcm_avail snd_pcm_writei I am checking return values to handle those functions being woken up by pthread cancel and attempting to exit. In testing the process it performs fine until I start actually writing data. Once I write some data, a pthread_exit will segfault. My cancellation routine is calling snd_pcm_drop, then doing a cancel followed by join.

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[alsa-devel] ALSA Driver DB Says to Contact You if I have This Hardware... So Here I am.
by Bugs Bane 20 Aug '08

20 Aug '08

Hi there, I have an Edirol 100FX. It has two modes, standard and advanced. The driver DB says it's currently supported for standard mode only, but to get in touch if I have this device so advanced mode can be worked on. I'm wondering what info I can supply to be of help? lsusb reads: Bus 004 Device 002: ID 0582:0046 Roland Corp. Bugsbane

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Re: [alsa-devel] [snd-bt87x]: seems cannot powerup after powerdown...
by Trent Piepho 19 Aug '08

19 Aug '08

On Tue, 19 Aug 2008, Dmitry Butskoy wrote: > Takashi Iwai wrote: > > Added Clemens and alsa-devel to Cc. > > > > At Mon, 18 Aug 2008 19:22:20 +0400, > > Dmitry Butskoy wrote: > > > >> Hi, > >> > >> Recently snd-bt87x driver has started to use CTL_A_PWRDN bit, see > >> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commi… > >> > >> Unfortunately, it produces a regression, at least in my case. > >> > >> I have "AVerMedia TVPhone 98" card, lspci is: Which PCM device are you using?

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Re: [alsa-devel] Alsa-devel Digest, Vol 18, Issue 45
by S. Aguinaga 19 Aug '08

19 Aug '08

============================================== Trying to figure out where to add this "model=macpro" and it looks like it should be in a file called modprobe.conf or an options file under /etc/modprobe.d/ but I don't have (with my installation -- fedora {9} ) those files, do you have any input on this? below are the only files I have. /etc/modprobe.d/ anaconda blacklist-visor i915modeset blacklist floppy-pnp modprobe.conf.dist ============================================== Subject: Re: [alsa-devel] Alsa-devel Digest, Vol 18, Issue 45 At Sat, 16 Aug 2008 06:15:46 -0700 (PDT), S. Aguinaga wrote: > > S. Aguinaga wrote: > > > > Hello Stan, > > > > This is awesome I did find the problem it's listed in the /var/log/messages under ALSA. > > > > 1. When I bring up the "Pulse Volume Control" gui, the first tab "Playback" comes up empty, and grayed-out is "No Streams Available" > > 2. aplay does not produce sound, period! > > 3. Amrok's welcome sample does not produce sound out of the std tower speaker or the headphone jack. > > > > I didn't notice anything strange on the output of the alsa-info.sh file, but when I checked the var/log/messages, this is what I found: > > > > sudo cat /var/log/messages | grep ALSA > > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_intel.c:1810: chipset global capabilities = 0x4401 > > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x1 > > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Surround Playback Volume, skipped (snip) These messages are harmless. It's just information from the driver, enabled only when you build it with CONFIG_SND_DEBUG_VERBOSE=y. > I think your problem is a misidentification of your sound chip. The > model being used for your 889A appears to be incompatible, thus all > the errors above. It appears that the macpro ALC885 is being selected > before it gets to the choice for the ALC889A. Perhaps a developer can > look into this. Well, ALC882, ALC885 and ALC889A are almost compatible. In the driver, they are all handled in the same routine. There are a few models for intel macs with ALC88x. Try to specify either model=macpro, model=mbp3 or model=imac24 as the module option of snd-hda-intel driver. Takashi

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[alsa-devel] [PATCH] Remove OSS driver for SGI HAL2 audio device
by Thomas Bogendoerfer 19 Aug '08

19 Aug '08

With the restructering of the indy button handling the old OSS HAL2 driver got broken. Since there is a new ALSA driver for HAL2, the experimental OSS driver is obsolete and will be removed by this patch. Signed-off-by: Thomas Bogendoerfer <tsbogend(a)alpha.franken.de> --- sound/oss/Kconfig | 7 - sound/oss/Makefile | 1 - sound/oss/hal2.c | 1558 ---------------------------------------------------- sound/oss/hal2.h | 248 --------- 4 files changed, 0 insertions(+), 1814 deletions(-) diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index d4fafb6..cbee9dc 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -24,13 +24,6 @@ config SOUND_VWSND <file:Documentation/sound/oss/vwsnd> for more info on this driver's capabilities. -config SOUND_HAL2 - tristate "SGI HAL2 sound (EXPERIMENTAL)" - depends on SGI_IP22 && EXPERIMENTAL - help - Say Y or M if you have an SGI Indy or Indigo2 system and want to be able to - use its on-board A2 audio system. - config SOUND_AU1550_AC97 tristate "Au1550/Au1200 AC97 Sound" depends on SOC_AU1550 || SOC_AU1200 diff --git a/sound/oss/Makefile b/sound/oss/Makefile index c611514..e0ae4d4 100644 --- a/sound/oss/Makefile +++ b/sound/oss/Makefile @@ -10,7 +10,6 @@ obj-$(CONFIG_SOUND_OSS) += sound.o # Please leave it as is, cause the link order is significant ! obj-$(CONFIG_SOUND_SH_DAC_AUDIO) += sh_dac_audio.o -obj-$(CONFIG_SOUND_HAL2) += hal2.o obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o diff --git a/sound/oss/hal2.c b/sound/oss/hal2.c deleted file mode 100644 index a94b9df..0000000 --- a/sound/oss/hal2.c +++ /dev/null @@ -1,1558 +0,0 @@ -/* - * Driver for A2 audio system used in SGI machines - * Copyright (c) 2001, 2002, 2003 Ladislav Michl <ladis(a)linux-mips.org> - * - * Based on Ulf Carlsson's code. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Supported devices: - * /dev/dsp standard dsp device, (mostly) OSS compatible - * /dev/mixer standard mixer device, (mostly) OSS compatible - * - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/poll.h> -#include <linux/interrupt.h> -#include <linux/dma-mapping.h> -#include <linux/sound.h> -#include <linux/soundcard.h> -#include <linux/mutex.h> - - -#include <asm/io.h> -#include <asm/sgi/hpc3.h> -#include <asm/sgi/ip22.h> - -#include "hal2.h" - -#if 0 -#define DEBUG(args...) printk(args) -#else -#define DEBUG(args...) -#endif - -#if 0 -#define DEBUG_MIX(args...) printk(args) -#else -#define DEBUG_MIX(args...) -#endif - -/* - * Before touching these look how it works. It is a bit unusual I know, - * but it helps to keep things simple. This driver is considered complete - * and I won't add any new features although hardware has many cool - * capabilities. - * (Historical note: HAL2 driver was first written by Ulf Carlsson - ALSA - * 0.3 running with 2.2.x kernel. Then ALSA changed completely and it - * seemed easier to me to write OSS driver from scratch - this one. Now - * when ALSA is official part of 2.6 kernel it's time to write ALSA driver - * using (hopefully) final version of ALSA interface) - */ -#define H2_BLOCK_SIZE 1024 -#define H2_ADC_BUFSIZE 8192 -#define H2_DAC_BUFSIZE 16834 - -struct hal2_pbus { - struct hpc3_pbus_dmacregs *pbus; - int pbusnr; - unsigned int ctrl; /* Current state of pbus->pbdma_ctrl */ -}; - -struct hal2_desc { - struct hpc_dma_desc desc; - u32 cnt; /* don't touch, it is also padding */ -}; - -struct hal2_codec { - unsigned char *buffer; - struct hal2_desc *desc; - int desc_count; - int tail, head; /* tail index, head index */ - struct hal2_pbus pbus; - unsigned int format; /* Audio data format */ - int voices; /* mono/stereo */ - unsigned int sample_rate; - unsigned int master; /* Master frequency */ - unsigned short mod; /* MOD value */ - unsigned short inc; /* INC value */ - - wait_queue_head_t dma_wait; - spinlock_t lock; - struct mutex sem; - - int usecount; /* recording and playback are - * independent */ -}; - -#define H2_MIX_OUTPUT_ATT 0 -#define H2_MIX_INPUT_GAIN 1 -#define H2_MIXERS 2 -struct hal2_mixer { - int modcnt; - unsigned int master; - unsigned int volume[H2_MIXERS]; -}; - -struct hal2_card { - int dev_dsp; /* audio device */ - int dev_mixer; /* mixer device */ - int dev_midi; /* midi device */ - - struct hal2_ctl_regs *ctl_regs; /* HAL2 ctl registers */ - struct hal2_aes_regs *aes_regs; /* HAL2 aes registers */ - struct hal2_vol_regs *vol_regs; /* HAL2 vol registers */ - struct hal2_syn_regs *syn_regs; /* HAL2 syn registers */ - - struct hal2_codec dac; - struct hal2_codec adc; - struct hal2_mixer mixer; -}; - -#define H2_INDIRECT_WAIT(regs) while (regs->isr & H2_ISR_TSTATUS); - -#define H2_READ_ADDR(addr) (addr | (1<<7)) -#define H2_WRITE_ADDR(addr) (addr) - -static char *hal2str = "HAL2"; - -/* - * I doubt anyone has a machine with two HAL2 cards. It's possible to - * have two HPC's, so it is probably possible to have two HAL2 cards. - * Try to deal with it, but note that it is not tested. - */ -#define MAXCARDS 2 -static struct hal2_card* hal2_card[MAXCARDS]; - -static const struct { - unsigned char idx:4, avail:1; -} mixtable[SOUND_MIXER_NRDEVICES] = { - [SOUND_MIXER_PCM] = { H2_MIX_OUTPUT_ATT, 1 }, /* voice */ - [SOUND_MIXER_MIC] = { H2_MIX_INPUT_GAIN, 1 }, /* mic */ -}; - -#define H2_SUPPORTED_FORMATS (AFMT_S16_LE | AFMT_S16_BE) - -static inline void hal2_isr_write(struct hal2_card *hal2, u16 val) -{ - hal2->ctl_regs->isr = val; -} - -static inline u16 hal2_isr_look(struct hal2_card *hal2) -{ - return hal2->ctl_regs->isr; -} - -static inline u16 hal2_rev_look(struct hal2_card *hal2) -{ - return hal2->ctl_regs->rev; -} - -#ifdef HAL2_DUMP_REGS -static u16 hal2_i_look16(struct hal2_card *hal2, u16 addr) -{ - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - return regs->idr0; -} -#endif - -static u32 hal2_i_look32(struct hal2_card *hal2, u16 addr) -{ - u32 ret; - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - ret = regs->idr0 & 0xffff; - regs->iar = H2_READ_ADDR(addr | 0x1); - H2_INDIRECT_WAIT(regs); - ret |= (regs->idr0 & 0xffff) << 16; - return ret; -} - -static void hal2_i_write16(struct hal2_card *hal2, u16 addr, u16 val) -{ - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->idr0 = val; - regs->idr1 = 0; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} - -static void hal2_i_write32(struct hal2_card *hal2, u16 addr, u32 val) -{ - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->idr0 = val & 0xffff; - regs->idr1 = val >> 16; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} - -static void hal2_i_setbit16(struct hal2_card *hal2, u16 addr, u16 bit) -{ - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - regs->idr0 = (regs->idr0 & 0xffff) | bit; - regs->idr1 = 0; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} - -static void hal2_i_setbit32(struct hal2_card *hal2, u16 addr, u32 bit) -{ - u32 tmp; - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - tmp = (regs->idr0 & 0xffff) | (regs->idr1 << 16) | bit; - regs->idr0 = tmp & 0xffff; - regs->idr1 = tmp >> 16; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} - -static void hal2_i_clearbit16(struct hal2_card *hal2, u16 addr, u16 bit) -{ - struct hal2_ctl_regs *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - regs->idr0 = (regs->idr0 & 0xffff) & ~bit; - regs->idr1 = 0; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} - -#if 0 -static void hal2_i_clearbit32(struct hal2_card *hal2, u16 addr, u32 bit) -{ - u32 tmp; - hal2_ctl_regs_t *regs = hal2->ctl_regs; - - regs->iar = H2_READ_ADDR(addr); - H2_INDIRECT_WAIT(regs); - tmp = ((regs->idr0 & 0xffff) | (regs->idr1 << 16)) & ~bit; - regs->idr0 = tmp & 0xffff; - regs->idr1 = tmp >> 16; - regs->idr2 = 0; - regs->idr3 = 0; - regs->iar = H2_WRITE_ADDR(addr); - H2_INDIRECT_WAIT(regs); -} -#endif - -#ifdef HAL2_DUMP_REGS -static void hal2_dump_regs(struct hal2_card *hal2) -{ - DEBUG("isr: %08hx ", hal2_isr_look(hal2)); - DEBUG("rev: %08hx\n", hal2_rev_look(hal2)); - DEBUG("relay: %04hx\n", hal2_i_look16(hal2, H2I_RELAY_C)); - DEBUG("port en: %04hx ", hal2_i_look16(hal2, H2I_DMA_PORT_EN)); - DEBUG("dma end: %04hx ", hal2_i_look16(hal2, H2I_DMA_END)); - DEBUG("dma drv: %04hx\n", hal2_i_look16(hal2, H2I_DMA_DRV)); - DEBUG("syn ctl: %04hx ", hal2_i_look16(hal2, H2I_SYNTH_C)); - DEBUG("aesrx ctl: %04hx ", hal2_i_look16(hal2, H2I_AESRX_C)); - DEBUG("aestx ctl: %04hx ", hal2_i_look16(hal2, H2I_AESTX_C)); - DEBUG("dac ctl1: %04hx ", hal2_i_look16(hal2, H2I_ADC_C1)); - DEBUG("dac ctl2: %08x ", hal2_i_look32(hal2, H2I_ADC_C2)); - DEBUG("adc ctl1: %04hx ", hal2_i_look16(hal2, H2I_DAC_C1)); - DEBUG("adc ctl2: %08x ", hal2_i_look32(hal2, H2I_DAC_C2)); - DEBUG("syn map: %04hx\n", hal2_i_look16(hal2, H2I_SYNTH_MAP_C)); - DEBUG("bres1 ctl1: %04hx ", hal2_i_look16(hal2, H2I_BRES1_C1)); - DEBUG("bres1 ctl2: %04x ", hal2_i_look32(hal2, H2I_BRES1_C2)); - DEBUG("bres2 ctl1: %04hx ", hal2_i_look16(hal2, H2I_BRES2_C1)); - DEBUG("bres2 ctl2: %04x ", hal2_i_look32(hal2, H2I_BRES2_C2)); - DEBUG("bres3 ctl1: %04hx ", hal2_i_look16(hal2, H2I_BRES3_C1)); - DEBUG("bres3 ctl2: %04x\n", hal2_i_look32(hal2, H2I_BRES3_C2)); -} -#endif - -static struct hal2_card* hal2_dsp_find_card(int minor) -{ - int i; - - for (i = 0; i < MAXCARDS; i++) - if (hal2_card[i] != NULL && hal2_card[i]->dev_dsp == minor) - return hal2_card[i]; - return NULL; -} - -static struct hal2_card* hal2_mixer_find_card(int minor) -{ - int i; - - for (i = 0; i < MAXCARDS; i++) - if (hal2_card[i] != NULL && hal2_card[i]->dev_mixer == minor) - return hal2_card[i]; - return NULL; -} - -static void hal2_inc_head(struct hal2_codec *codec) -{ - codec->head++; - if (codec->head == codec->desc_count) - codec->head = 0; -} - -static void hal2_inc_tail(struct hal2_codec *codec) -{ - codec->tail++; - if (codec->tail == codec->desc_count) - codec->tail = 0; -} - -static void hal2_dac_interrupt(struct hal2_codec *dac) -{ - int running; - - spin_lock(&dac->lock); - /* if tail buffer contains zero samples DMA stream was already - * stopped */ - running = dac->desc[dac->tail].cnt; - dac->desc[dac->tail].cnt = 0; - dac->desc[dac->tail].desc.cntinfo = HPCDMA_XIE | HPCDMA_EOX; - /* we just proccessed empty buffer, don't update tail pointer */ - if (running) - hal2_inc_tail(dac); - spin_unlock(&dac->lock); - - wake_up(&dac->dma_wait); -} - -static void hal2_adc_interrupt(struct hal2_codec *adc) -{ - int running; - - spin_lock(&adc->lock); - /* if head buffer contains nonzero samples DMA stream was already - * stopped */ - running = !adc->desc[adc->head].cnt; - adc->desc[adc->head].cnt = H2_BLOCK_SIZE; - adc->desc[adc->head].desc.cntinfo = HPCDMA_XIE | HPCDMA_EOR; - /* we just proccessed empty buffer, don't update head pointer */ - if (running) - hal2_inc_head(adc); - spin_unlock(&adc->lock); - - wake_up(&adc->dma_wait); -} - -static irqreturn_t hal2_interrupt(int irq, void *dev_id) -{ - struct hal2_card *hal2 = dev_id; - irqreturn_t ret = IRQ_NONE; - - /* decide what caused this interrupt */ - if (hal2->dac.pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_INT) { - hal2_dac_interrupt(&hal2->dac); - ret = IRQ_HANDLED; - } - if (hal2->adc.pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_INT) { - hal2_adc_interrupt(&hal2->adc); - ret = IRQ_HANDLED; - } - return ret; -} - -static int hal2_compute_rate(struct hal2_codec *codec, unsigned int rate) -{ - unsigned short mod; - - DEBUG("rate: %d\n", rate); - - if (rate < 4000) rate = 4000; - else if (rate > 48000) rate = 48000; - - if (44100 % rate < 48000 % rate) { - mod = 4 * 44100 / rate; - codec->master = 44100; - } else { - mod = 4 * 48000 / rate; - codec->master = 48000; - } - - codec->inc = 4; - codec->mod = mod; - rate = 4 * codec->master / mod; - - DEBUG("real_rate: %d\n", rate); - - return rate; -} - -static void hal2_set_dac_rate(struct hal2_card *hal2) -{ - unsigned int master = hal2->dac.master; - int inc = hal2->dac.inc; - int mod = hal2->dac.mod; - - DEBUG("master: %d inc: %d mod: %d\n", master, inc, mod); - - hal2_i_write16(hal2, H2I_BRES1_C1, (master == 44100) ? 1 : 0); - hal2_i_write32(hal2, H2I_BRES1_C2, ((0xffff & (inc - mod - 1)) << 16) | inc); -} - -static void hal2_set_adc_rate(struct hal2_card *hal2) -{ - unsigned int master = hal2->adc.master; - int inc = hal2->adc.inc; - int mod = hal2->adc.mod; - - DEBUG("master: %d inc: %d mod: %d\n", master, inc, mod); - - hal2_i_write16(hal2, H2I_BRES2_C1, (master == 44100) ? 1 : 0); - hal2_i_write32(hal2, H2I_BRES2_C2, ((0xffff & (inc - mod - 1)) << 16) | inc); -} - -static void hal2_setup_dac(struct hal2_card *hal2) -{ - unsigned int fifobeg, fifoend, highwater, sample_size; - struct hal2_pbus *pbus = &hal2->dac.pbus; - - DEBUG("hal2_setup_dac\n"); - - /* Now we set up some PBUS information. The PBUS needs information about - * what portion of the fifo it will use. If it's receiving or - * transmitting, and finally whether the stream is little endian or big - * endian. The information is written later, on the start call. - */ - sample_size = 2 * hal2->dac.voices; - /* Fifo should be set to hold exactly four samples. Highwater mark - * should be set to two samples. */ - highwater = (sample_size * 2) >> 1; /* halfwords */ - fifobeg = 0; /* playback is first */ - fifoend = (sample_size * 4) >> 3; /* doublewords */ - pbus->ctrl = HPC3_PDMACTRL_RT | HPC3_PDMACTRL_LD | - (highwater << 8) | (fifobeg << 16) | (fifoend << 24) | - (hal2->dac.format & AFMT_S16_LE ? HPC3_PDMACTRL_SEL : 0); - /* We disable everything before we do anything at all */ - pbus->pbus->pbdma_ctrl = HPC3_PDMACTRL_LD; - hal2_i_clearbit16(hal2, H2I_DMA_PORT_EN, H2I_DMA_PORT_EN_CODECTX); - /* Setup the HAL2 for playback */ - hal2_set_dac_rate(hal2); - /* Set endianess */ - if (hal2->dac.format & AFMT_S16_LE) - hal2_i_setbit16(hal2, H2I_DMA_END, H2I_DMA_END_CODECTX); - else - hal2_i_clearbit16(hal2, H2I_DMA_END, H2I_DMA_END_CODECTX); - /* Set DMA bus */ - hal2_i_setbit16(hal2, H2I_DMA_DRV, (1 << pbus->pbusnr)); - /* We are using 1st Bresenham clock generator for playback */ - hal2_i_write16(hal2, H2I_DAC_C1, (pbus->pbusnr << H2I_C1_DMA_SHIFT) - | (1 << H2I_C1_CLKID_SHIFT) - | (hal2->dac.voices << H2I_C1_DATAT_SHIFT)); -} - -static void hal2_setup_adc(struct hal2_card *hal2) -{ - unsigned int fifobeg, fifoend, highwater, sample_size; - struct hal2_pbus *pbus = &hal2->adc.pbus; - - DEBUG("hal2_setup_adc\n"); - - sample_size = 2 * hal2->adc.voices; - highwater = (sample_size * 2) >> 1; /* halfwords */ - fifobeg = (4 * 4) >> 3; /* record is second */ - fifoend = (4 * 4 + sample_size * 4) >> 3; /* doublewords */ - pbus->ctrl = HPC3_PDMACTRL_RT | HPC3_PDMACTRL_RCV | HPC3_PDMACTRL_LD | - (highwater << 8) | (fifobeg << 16) | (fifoend << 24) | - (hal2->adc.format & AFMT_S16_LE ? HPC3_PDMACTRL_SEL : 0); - pbus->pbus->pbdma_ctrl = HPC3_PDMACTRL_LD; - hal2_i_clearbit16(hal2, H2I_DMA_PORT_EN, H2I_DMA_PORT_EN_CODECR); - /* Setup the HAL2 for record */ - hal2_set_adc_rate(hal2); - /* Set endianess */ - if (hal2->adc.format & AFMT_S16_LE) - hal2_i_setbit16(hal2, H2I_DMA_END, H2I_DMA_END_CODECR); - else - hal2_i_clearbit16(hal2, H2I_DMA_END, H2I_DMA_END_CODECR); - /* Set DMA bus */ - hal2_i_setbit16(hal2, H2I_DMA_DRV, (1 << pbus->pbusnr)); - /* We are using 2nd Bresenham clock generator for record */ - hal2_i_write16(hal2, H2I_ADC_C1, (pbus->pbusnr << H2I_C1_DMA_SHIFT) - | (2 << H2I_C1_CLKID_SHIFT) - | (hal2->adc.voices << H2I_C1_DATAT_SHIFT)); -} - -static dma_addr_t hal2_desc_addr(struct hal2_codec *codec, int i) -{ - if (--i < 0) - i = codec->desc_count - 1; - return codec->desc[i].desc.pnext; -} - -static void hal2_start_dac(struct hal2_card *hal2) -{ - struct hal2_codec *dac = &hal2->dac; - struct hal2_pbus *pbus = &dac->pbus; - - pbus->pbus->pbdma_dptr = hal2_desc_addr(dac, dac->tail); - pbus->pbus->pbdma_ctrl = pbus->ctrl | HPC3_PDMACTRL_ACT; - /* enable DAC */ - hal2_i_setbit16(hal2, H2I_DMA_PORT_EN, H2I_DMA_PORT_EN_CODECTX); -} - -static void hal2_start_adc(struct hal2_card *hal2) -{ - struct hal2_codec *adc = &hal2->adc; - struct hal2_pbus *pbus = &adc->pbus; - - pbus->pbus->pbdma_dptr = hal2_desc_addr(adc, adc->head); - pbus->pbus->pbdma_ctrl = pbus->ctrl | HPC3_PDMACTRL_ACT; - /* enable ADC */ - hal2_i_setbit16(hal2, H2I_DMA_PORT_EN, H2I_DMA_PORT_EN_CODECR); -} - -static inline void hal2_stop_dac(struct hal2_card *hal2) -{ - hal2->dac.pbus.pbus->pbdma_ctrl = HPC3_PDMACTRL_LD; - /* The HAL2 itself may remain enabled safely */ -} - -static inline void hal2_stop_adc(struct hal2_card *hal2) -{ - hal2->adc.pbus.pbus->pbdma_ctrl = HPC3_PDMACTRL_LD; -} - -static int hal2_alloc_dmabuf(struct hal2_codec *codec, int size, - int count, int cntinfo, int dir) -{ - struct hal2_desc *desc, *dma_addr; - int i; - - DEBUG("allocating %dk DMA buffer.\n", size / 1024); - - codec->buffer = (unsigned char *)__get_free_pages(GFP_KERNEL | GFP_DMA, - get_order(size)); - if (!codec->buffer) - return -ENOMEM; - desc = dma_alloc_coherent(NULL, count * sizeof(struct hal2_desc), - (dma_addr_t *)&dma_addr, GFP_KERNEL); - if (!desc) { - free_pages((unsigned long)codec->buffer, get_order(size)); - return -ENOMEM; - } - codec->desc = desc; - for (i = 0; i < count; i++) { - desc->desc.pbuf = dma_map_single(NULL, - (void *)(codec->buffer + i * H2_BLOCK_SIZE), - H2_BLOCK_SIZE, dir); - desc->desc.cntinfo = cntinfo; - desc->desc.pnext = (i == count - 1) ? - (u32)dma_addr : (u32)(dma_addr + i + 1); - desc->cnt = 0; - desc++; - } - codec->desc_count = count; - codec->head = codec->tail = 0; - return 0; -} - -static int hal2_alloc_dac_dmabuf(struct hal2_codec *codec) -{ - return hal2_alloc_dmabuf(codec, H2_DAC_BUFSIZE, - H2_DAC_BUFSIZE / H2_BLOCK_SIZE, - HPCDMA_XIE | HPCDMA_EOX, - DMA_TO_DEVICE); -} - -static int hal2_alloc_adc_dmabuf(struct hal2_codec *codec) -{ - return hal2_alloc_dmabuf(codec, H2_ADC_BUFSIZE, - H2_ADC_BUFSIZE / H2_BLOCK_SIZE, - HPCDMA_XIE | H2_BLOCK_SIZE, - DMA_TO_DEVICE); -} - -static void hal2_free_dmabuf(struct hal2_codec *codec, int size, int dir) -{ - dma_addr_t dma_addr; - int i; - - dma_addr = codec->desc[codec->desc_count - 1].desc.pnext; - for (i = 0; i < codec->desc_count; i++) - dma_unmap_single(NULL, codec->desc[i].desc.pbuf, - H2_BLOCK_SIZE, dir); - dma_free_coherent(NULL, codec->desc_count * sizeof(struct hal2_desc), - (void *)codec->desc, dma_addr); - free_pages((unsigned long)codec->buffer, get_order(size)); -} - -static void hal2_free_dac_dmabuf(struct hal2_codec *codec) -{ - return hal2_free_dmabuf(codec, H2_DAC_BUFSIZE, DMA_TO_DEVICE); -} - -static void hal2_free_adc_dmabuf(struct hal2_codec *codec) -{ - return hal2_free_dmabuf(codec, H2_ADC_BUFSIZE, DMA_FROM_DEVICE); -} - -/* - * Add 'count' bytes to 'buffer' from DMA ring buffers. Return number of - * bytes added or -EFAULT if copy_from_user failed. - */ -static int hal2_get_buffer(struct hal2_card *hal2, char *buffer, int count) -{ - unsigned long flags; - int size, ret = 0; - unsigned char *buf; - struct hal2_desc *tail; - struct hal2_codec *adc = &hal2->adc; - - DEBUG("getting %d bytes ", count); - - spin_lock_irqsave(&adc->lock, flags); - tail = &adc->desc[adc->tail]; - /* enable DMA stream if there are no data */ - if (!tail->cnt && !(adc->pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_ISACT)) - hal2_start_adc(hal2); - while (tail->cnt > 0 && count > 0) { - size = min((int)tail->cnt, count); - buf = &adc->buffer[(adc->tail + 1) * H2_BLOCK_SIZE - tail->cnt]; - spin_unlock_irqrestore(&adc->lock, flags); - dma_sync_single(NULL, tail->desc.pbuf, size, DMA_FROM_DEVICE); - if (copy_to_user(buffer, buf, size)) { - ret = -EFAULT; - goto out; - } - spin_lock_irqsave(&adc->lock, flags); - tail->cnt -= size; - /* buffer is empty, update tail pointer */ - if (tail->cnt == 0) { - tail->desc.cntinfo = HPCDMA_XIE | H2_BLOCK_SIZE; - hal2_inc_tail(adc); - tail = &adc->desc[adc->tail]; - /* enable DMA stream again if needed */ - if (!(adc->pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_ISACT)) - hal2_start_adc(hal2); - } - buffer += size; - ret += size; - count -= size; - - DEBUG("(%d) ", size); - } - spin_unlock_irqrestore(&adc->lock, flags); -out: - DEBUG("\n"); - - return ret; -} - -/* - * Add 'count' bytes from 'buffer' to DMA ring buffers. Return number of - * bytes added or -EFAULT if copy_from_user failed. - */ -static int hal2_add_buffer(struct hal2_card *hal2, char *buffer, int count) -{ - unsigned long flags; - unsigned char *buf; - int size, ret = 0; - struct hal2_desc *head; - struct hal2_codec *dac = &hal2->dac; - - DEBUG("adding %d bytes ", count); - - spin_lock_irqsave(&dac->lock, flags); - head = &dac->desc[dac->head]; - while (head->cnt == 0 && count > 0) { - size = min((int)H2_BLOCK_SIZE, count); - buf = &dac->buffer[dac->head * H2_BLOCK_SIZE]; - spin_unlock_irqrestore(&dac->lock, flags); - if (copy_from_user(buf, buffer, size)) { - ret = -EFAULT; - goto out; - } - dma_sync_single(NULL, head->desc.pbuf, size, DMA_TO_DEVICE); - spin_lock_irqsave(&dac->lock, flags); - head->desc.cntinfo = size | HPCDMA_XIE; - head->cnt = size; - buffer += size; - ret += size; - count -= size; - hal2_inc_head(dac); - head = &dac->desc[dac->head]; - - DEBUG("(%d) ", size); - } - if (!(dac->pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_ISACT) && ret > 0) - hal2_start_dac(hal2); - spin_unlock_irqrestore(&dac->lock, flags); -out: - DEBUG("\n"); - - return ret; -} - -#define hal2_reset_dac_pointer(hal2) hal2_reset_pointer(hal2, 1) -#define hal2_reset_adc_pointer(hal2) hal2_reset_pointer(hal2, 0) -static void hal2_reset_pointer(struct hal2_card *hal2, int is_dac) -{ - int i; - struct hal2_codec *codec = (is_dac) ? &hal2->dac : &hal2->adc; - - DEBUG("hal2_reset_pointer\n"); - - for (i = 0; i < codec->desc_count; i++) { - codec->desc[i].cnt = 0; - codec->desc[i].desc.cntinfo = HPCDMA_XIE | (is_dac) ? - HPCDMA_EOX : H2_BLOCK_SIZE; - } - codec->head = codec->tail = 0; -} - -static int hal2_sync_dac(struct hal2_card *hal2) -{ - DECLARE_WAITQUEUE(wait, current); - struct hal2_codec *dac = &hal2->dac; - int ret = 0; - unsigned long flags; - signed long timeout = 1000 * H2_BLOCK_SIZE * 2 * dac->voices * - HZ / dac->sample_rate / 900; - - while (dac->pbus.pbus->pbdma_ctrl & HPC3_PDMACTRL_ISACT) { - add_wait_queue(&dac->dma_wait, &wait); - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(timeout); - spin_lock_irqsave(&dac->lock, flags); - if (dac->desc[dac->tail].cnt) - ret = -ETIME; - spin_unlock_irqrestore(&dac->lock, flags); - if (signal_pending(current)) - ret = -ERESTARTSYS; - if (ret) { - hal2_stop_dac(hal2); - hal2_reset_dac_pointer(hal2); - } - remove_wait_queue(&dac->dma_wait, &wait); - } - - return ret; -} - -static int hal2_write_mixer(struct hal2_card *hal2, int index, int vol) -{ - unsigned int l, r, tmp; - - DEBUG_MIX("mixer %d write\n", index); - - if (index >= SOUND_MIXER_NRDEVICES || !mixtable[index].avail) - return -EINVAL; - - r = (vol >> 8) & 0xff; - if (r > 100) - r = 100; - l = vol & 0xff; - if (l > 100) - l = 100; - - hal2->mixer.volume[mixtable[index].idx] = l | (r << 8); - - switch (mixtable[index].idx) { - case H2_MIX_OUTPUT_ATT: - - DEBUG_MIX("output attenuator %d,%d\n", l, r); - - if (r | l) { - tmp = hal2_i_look32(hal2, H2I_DAC_C2); - tmp &= ~(H2I_C2_L_ATT_M | H2I_C2_R_ATT_M | H2I_C2_MUTE); - - /* Attenuator has five bits */ - l = 31 * (100 - l) / 99; - r = 31 * (100 - r) / 99; - - DEBUG_MIX("left: %d, right %d\n", l, r); - - tmp |= (l << H2I_C2_L_ATT_SHIFT) & H2I_C2_L_ATT_M; - tmp |= (r << H2I_C2_R_ATT_SHIFT) & H2I_C2_R_ATT_M; - hal2_i_write32(hal2, H2I_DAC_C2, tmp); - } else - hal2_i_setbit32(hal2, H2I_DAC_C2, H2I_C2_MUTE); - break; - case H2_MIX_INPUT_GAIN: - - DEBUG_MIX("input gain %d,%d\n", l, r); - - tmp = hal2_i_look32(hal2, H2I_ADC_C2); - tmp &= ~(H2I_C2_L_GAIN_M | H2I_C2_R_GAIN_M); - - /* Gain control has four bits */ - l = 16 * l / 100; - r = 16 * r / 100; - - DEBUG_MIX("left: %d, right %d\n", l, r); - - tmp |= (l << H2I_C2_L_GAIN_SHIFT) & H2I_C2_L_GAIN_M; - tmp |= (r << H2I_C2_R_GAIN_SHIFT) & H2I_C2_R_GAIN_M; - hal2_i_write32(hal2, H2I_ADC_C2, tmp); - - break; - } - - return 0; -} - -static void hal2_init_mixer(struct hal2_card *hal2) -{ - int i; - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - if (mixtable[i].avail) - hal2->mixer.volume[mixtable[i].idx] = 100 | (100 << 8); - - /* disable attenuator */ - hal2_i_write32(hal2, H2I_DAC_C2, 0); - /* set max input gain */ - hal2_i_write32(hal2, H2I_ADC_C2, H2I_C2_MUTE | - (H2I_C2_L_GAIN_M << H2I_C2_L_GAIN_SHIFT) | - (H2I_C2_R_GAIN_M << H2I_C2_R_GAIN_SHIFT)); - /* set max volume */ - hal2->mixer.master = 0xff; - hal2->vol_regs->left = 0xff; - hal2->vol_regs->right = 0xff; -} - -/* - * XXX: later i'll implement mixer for main volume which will be disabled - * by default. enabling it users will be allowed to have master volume level - * control on panel in their favourite X desktop - */ -static void hal2_volume_control(int direction) -{ - unsigned int master = hal2_card[0]->mixer.master; - struct hal2_vol_regs *vol = hal2_card[0]->vol_regs; - - /* volume up */ - if (direction > 0 && master < 0xff) - master++; - /* volume down */ - else if (direction < 0 && master > 0) - master--; - /* TODO: mute/unmute */ - vol->left = master; - vol->right = master; - hal2_card[0]->mixer.master = master; -} - -static int hal2_mixer_ioctl(struct hal2_card *hal2, unsigned int cmd, - unsigned long arg) -{ - int val; - - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - - memset(&info, 0, sizeof(info)); - strlcpy(info.id, hal2str, sizeof(info.id)); - strlcpy(info.name, hal2str, sizeof(info.name)); - info.modify_counter = hal2->mixer.modcnt; - if (copy_to_user((void *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - - memset(&info, 0, sizeof(info)); - strlcpy(info.id, hal2str, sizeof(info.id)); - strlcpy(info.name, hal2str, sizeof(info.name)); - if (copy_to_user((void *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int *)arg); - - if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - - if (_IOC_DIR(cmd) == _IOC_READ) { - switch (_IOC_NR(cmd)) { - /* Give the current record source */ - case SOUND_MIXER_RECSRC: - val = 0; /* FIXME */ - break; - /* Give the supported mixers, all of them support stereo */ - case SOUND_MIXER_DEVMASK: - case SOUND_MIXER_STEREODEVS: { - int i; - - for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++) - if (mixtable[i].avail) - val |= 1 << i; - break; - } - /* Arg contains a bit for each supported recording source */ - case SOUND_MIXER_RECMASK: - val = 0; - break; - case SOUND_MIXER_CAPS: - val = 0; - break; - /* Read a specific mixer */ - default: { - int i = _IOC_NR(cmd); - - if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail) - return -EINVAL; - val = hal2->mixer.volume[mixtable[i].idx]; - break; - } - } - return put_user(val, (int *)arg); - } - - if (_IOC_DIR(cmd) != (_IOC_WRITE|_IOC_READ)) - return -EINVAL; - - hal2->mixer.modcnt++; - - if (get_user(val, (int *)arg)) - return -EFAULT; - - switch (_IOC_NR(cmd)) { - /* Arg contains a bit for each recording source */ - case SOUND_MIXER_RECSRC: - return 0; /* FIXME */ - default: - return hal2_write_mixer(hal2, _IOC_NR(cmd), val); - } - - return 0; -} - -static int hal2_open_mixdev(struct inode *inode, struct file *file) -{ - struct hal2_card *hal2 = hal2_mixer_find_card(iminor(inode)); - - if (hal2) { - file->private_data = hal2; - return nonseekable_open(inode, file); - } - return -ENODEV; -} - -static int hal2_release_mixdev(struct inode *inode, struct file *file) -{ - return 0; -} - -static int hal2_ioctl_mixdev(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return hal2_mixer_ioctl((struct hal2_card *)file->private_data, cmd, arg); -} - -static int hal2_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - int val; - struct hal2_card *hal2 = (struct hal2_card *) file->private_data; - - switch (cmd) { - case OSS_GETVERSION: - return put_user(SOUND_VERSION, (int *)arg); - - case SNDCTL_DSP_SYNC: - if (file->f_mode & FMODE_WRITE) - return hal2_sync_dac(hal2); - return 0; - - case SNDCTL_DSP_SETDUPLEX: - return 0; - - case SNDCTL_DSP_GETCAPS: - return put_user(DSP_CAP_DUPLEX | DSP_CAP_MULTI, (int *)arg); - - case SNDCTL_DSP_RESET: - if (file->f_mode & FMODE_READ) { - hal2_stop_adc(hal2); - hal2_reset_adc_pointer(hal2); - } - if (file->f_mode & FMODE_WRITE) { - hal2_stop_dac(hal2); - hal2_reset_dac_pointer(hal2); - } - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, (int *)arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - hal2_stop_adc(hal2); - val = hal2_compute_rate(&hal2->adc, val); - hal2->adc.sample_rate = val; - hal2_set_adc_rate(hal2); - } - if (file->f_mode & FMODE_WRITE) { - hal2_stop_dac(hal2); - val = hal2_compute_rate(&hal2->dac, val); - hal2->dac.sample_rate = val; - hal2_set_dac_rate(hal2); - } - return put_user(val, (int *)arg); - - case SNDCTL_DSP_STEREO: - if (get_user(val, (int *)arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - hal2_stop_adc(hal2); - hal2->adc.voices = (val) ? 2 : 1; - hal2_setup_adc(hal2); - } - if (file->f_mode & FMODE_WRITE) { - hal2_stop_dac(hal2); - hal2->dac.voices = (val) ? 2 : 1; - hal2_setup_dac(hal2); - } - return 0; - - case SNDCTL_DSP_CHANNELS: - if (get_user(val, (int *)arg)) - return -EFAULT; - if (val != 0) { - if (file->f_mode & FMODE_READ) { - hal2_stop_adc(hal2); - hal2->adc.voices = (val == 1) ? 1 : 2; - hal2_setup_adc(hal2); - } - if (file->f_mode & FMODE_WRITE) { - hal2_stop_dac(hal2); - hal2->dac.voices = (val == 1) ? 1 : 2; - hal2_setup_dac(hal2); - } - } - val = -EINVAL; - if (file->f_mode & FMODE_READ) - val = hal2->adc.voices; - if (file->f_mode & FMODE_WRITE) - val = hal2->dac.voices; - return put_user(val, (int *)arg); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask */ - return put_user(H2_SUPPORTED_FORMATS, (int *)arg); - - case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ - if (get_user(val, (int *)arg)) - return -EFAULT; - if (val != AFMT_QUERY) { - if (!(val & H2_SUPPORTED_FORMATS)) - return -EINVAL; - if (file->f_mode & FMODE_READ) { - hal2_stop_adc(hal2); - hal2->adc.format = val; - hal2_setup_adc(hal2); - } - if (file->f_mode & FMODE_WRITE) { - hal2_stop_dac(hal2); - hal2->dac.format = val; - hal2_setup_dac(hal2); - } - } else { - val = -EINVAL; - if (file->f_mode & FMODE_READ) - val = hal2->adc.format; - if (file->f_mode & FMODE_WRITE) - val = hal2->dac.format; - } - return put_user(val, (int *)arg); - - case SNDCTL_DSP_POST: - return 0; - - case SNDCTL_DSP_GETOSPACE: { - audio_buf_info info; - int i; - unsigned long flags; - struct hal2_codec *dac = &hal2->dac; - - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - info.fragments = 0; - spin_lock_irqsave(&dac->lock, flags); - for (i = 0; i < dac->desc_count; i++) - if (dac->desc[i].cnt == 0) - info.fragments++; - spin_unlock_irqrestore(&dac->lock, flags); - info.fragstotal = dac->desc_count; - info.fragsize = H2_BLOCK_SIZE; - info.bytes = info.fragsize * info.fragments; - - return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0; - } - - case SNDCTL_DSP_GETISPACE: { - audio_buf_info info; - int i; - unsigned long flags; - struct hal2_codec *adc = &hal2->adc; - - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - info.fragments = 0; - info.bytes = 0; - spin_lock_irqsave(&adc->lock, flags); - for (i = 0; i < adc->desc_count; i++) - if (adc->desc[i].cnt > 0) { - info.fragments++; - info.bytes += adc->desc[i].cnt; - } - spin_unlock_irqrestore(&adc->lock, flags); - info.fragstotal = adc->desc_count; - info.fragsize = H2_BLOCK_SIZE; - - return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0; - } - - case SNDCTL_DSP_NONBLOCK: - file->f_flags |= O_NONBLOCK; - return 0; - - case SNDCTL_DSP_GETBLKSIZE: - return put_user(H2_BLOCK_SIZE, (int *)arg); - - case SNDCTL_DSP_SETFRAGMENT: - return 0; - - case SOUND_PCM_READ_RATE: - val = -EINVAL; - if (file->f_mode & FMODE_READ) - val = hal2->adc.sample_rate; - if (file->f_mode & FMODE_WRITE) - val = hal2->dac.sample_rate; - return put_user(val, (int *)arg); - - case SOUND_PCM_READ_CHANNELS: - val = -EINVAL; - if (file->f_mode & FMODE_READ) - val = hal2->adc.voices; - if (file->f_mode & FMODE_WRITE) - val = hal2->dac.voices; - return put_user(val, (int *)arg); - - case SOUND_PCM_READ_BITS: - return put_user(16, (int *)arg); - } - - return hal2_mixer_ioctl(hal2, cmd, arg); -} - -static ssize_t hal2_read(struct file *file, char *buffer, - size_t count, loff_t *ppos) -{ - ssize_t err; - struct hal2_card *hal2 = (struct hal2_card *) file->private_data; - struct hal2_codec *adc = &hal2->adc; - - if (!count) - return 0; - if (mutex_lock_interruptible(&adc->sem)) - return -EINTR; - if (file->f_flags & O_NONBLOCK) { - err = hal2_get_buffer(hal2, buffer, count); - err = err == 0 ? -EAGAIN : err; - } else { - do { - /* ~10% longer */ - signed long timeout = 1000 * H2_BLOCK_SIZE * - 2 * adc->voices * HZ / adc->sample_rate / 900; - unsigned long flags; - DECLARE_WAITQUEUE(wait, current); - ssize_t cnt = 0; - - err = hal2_get_buffer(hal2, buffer, count); - if (err > 0) { - count -= err; - cnt += err; - buffer += err; - err = cnt; - } - if (count > 0 && err >= 0) { - add_wait_queue(&adc->dma_wait, &wait); - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(timeout); - spin_lock_irqsave(&adc->lock, flags); - if (!adc->desc[adc->tail].cnt) - err = -EAGAIN; - spin_unlock_irqrestore(&adc->lock, flags); - if (signal_pending(current)) - err = -ERESTARTSYS; - remove_wait_queue(&adc->dma_wait, &wait); - if (err < 0) { - hal2_stop_adc(hal2); - hal2_reset_adc_pointer(hal2); - } - } - } while (count > 0 && err >= 0); - } - mutex_unlock(&adc->sem); - - return err; -} - -static ssize_t hal2_write(struct file *file, const char *buffer, - size_t count, loff_t *ppos) -{ - ssize_t err; - char *buf = (char*) buffer; - struct hal2_card *hal2 = (struct hal2_card *) file->private_data; - struct hal2_codec *dac = &hal2->dac; - - if (!count) - return 0; - if (mutex_lock_interruptible(&dac->sem)) - return -EINTR; - if (file->f_flags & O_NONBLOCK) { - err = hal2_add_buffer(hal2, buf, count); - err = err == 0 ? -EAGAIN : err; - } else { - do { - /* ~10% longer */ - signed long timeout = 1000 * H2_BLOCK_SIZE * - 2 * dac->voices * HZ / dac->sample_rate / 900; - unsigned long flags; - DECLARE_WAITQUEUE(wait, current); - ssize_t cnt = 0; - - err = hal2_add_buffer(hal2, buf, count); - if (err > 0) { - count -= err; - cnt += err; - buf += err; - err = cnt; - } - if (count > 0 && err >= 0) { - add_wait_queue(&dac->dma_wait, &wait); - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(timeout); - spin_lock_irqsave(&dac->lock, flags); - if (dac->desc[dac->head].cnt) - err = -EAGAIN; - spin_unlock_irqrestore(&dac->lock, flags); - if (signal_pending(current)) - err = -ERESTARTSYS; - remove_wait_queue(&dac->dma_wait, &wait); - if (err < 0) { - hal2_stop_dac(hal2); - hal2_reset_dac_pointer(hal2); - } - } - } while (count > 0 && err >= 0); - } - mutex_unlock(&dac->sem); - - return err; -} - -static unsigned int hal2_poll(struct file *file, struct poll_table_struct *wait) -{ - unsigned long flags; - unsigned int mask = 0; - struct hal2_card *hal2 = (struct hal2_card *) file->private_data; - - if (file->f_mode & FMODE_READ) { - struct hal2_codec *adc = &hal2->adc; - - poll_wait(file, &adc->dma_wait, wait); - spin_lock_irqsave(&adc->lock, flags); - if (adc->desc[adc->tail].cnt > 0) - mask |= POLLIN; - spin_unlock_irqrestore(&adc->lock, flags); - } - - if (file->f_mode & FMODE_WRITE) { - struct hal2_codec *dac = &hal2->dac; - - poll_wait(file, &dac->dma_wait, wait); - spin_lock_irqsave(&dac->lock, flags); - if (dac->desc[dac->head].cnt == 0) - mask |= POLLOUT; - spin_unlock_irqrestore(&dac->lock, flags); - } - - return mask; -} - -static int hal2_open(struct inode *inode, struct file *file) -{ - int err; - struct hal2_card *hal2 = hal2_dsp_find_card(iminor(inode)); - - if (!hal2) - return -ENODEV; - file->private_data = hal2; - if (file->f_mode & FMODE_READ) { - struct hal2_codec *adc = &hal2->adc; - - if (adc->usecount) - return -EBUSY; - /* OSS spec wanted us to use 8 bit, 8 kHz mono by default, - * but HAL2 can't do 8bit audio */ - adc->format = AFMT_S16_BE; - adc->voices = 1; - adc->sample_rate = hal2_compute_rate(adc, 8000); - hal2_set_adc_rate(hal2); - err = hal2_alloc_adc_dmabuf(adc); - if (err) - return err; - hal2_setup_adc(hal2); - adc->usecount++; - } - if (file->f_mode & FMODE_WRITE) { - struct hal2_codec *dac = &hal2->dac; - - if (dac->usecount) - return -EBUSY; - dac->format = AFMT_S16_BE; - dac->voices = 1; - dac->sample_rate = hal2_compute_rate(dac, 8000); - hal2_set_dac_rate(hal2); - err = hal2_alloc_dac_dmabuf(dac); - if (err) - return err; - hal2_setup_dac(hal2); - dac->usecount++; - } - - return nonseekable_open(inode, file); -} - -static int hal2_release(struct inode *inode, struct file *file) -{ - struct hal2_card *hal2 = (struct hal2_card *) file->private_data; - - if (file->f_mode & FMODE_READ) { - struct hal2_codec *adc = &hal2->adc; - - mutex_lock(&adc->sem); - hal2_stop_adc(hal2); - hal2_free_adc_dmabuf(adc); - adc->usecount--; - mutex_unlock(&adc->sem); - } - if (file->f_mode & FMODE_WRITE) { - struct hal2_codec *dac = &hal2->dac; - - mutex_lock(&dac->sem); - hal2_sync_dac(hal2); - hal2_free_dac_dmabuf(dac); - dac->usecount--; - mutex_unlock(&dac->sem); - } - - return 0; -} - -static const struct file_operations hal2_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = hal2_read, - .write = hal2_write, - .poll = hal2_poll, - .ioctl = hal2_ioctl, - .open = hal2_open, - .release = hal2_release, -}; - -static const struct file_operations hal2_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .ioctl = hal2_ioctl_mixdev, - .open = hal2_open_mixdev, - .release = hal2_release_mixdev, -}; - -static void hal2_init_codec(struct hal2_codec *codec, struct hpc3_regs *hpc3, - int index) -{ - codec->pbus.pbusnr = index; - codec->pbus.pbus = &hpc3->pbdma[index]; - init_waitqueue_head(&codec->dma_wait); - mutex_init(&codec->sem); - spin_lock_init(&codec->lock); -} - -static int hal2_detect(struct hal2_card *hal2) -{ - unsigned short board, major, minor; - unsigned short rev; - - /* reset HAL2 */ - hal2_isr_write(hal2, 0); - /* release reset */ - hal2_isr_write(hal2, H2_ISR_GLOBAL_RESET_N | H2_ISR_CODEC_RESET_N); - - hal2_i_write16(hal2, H2I_RELAY_C, H2I_RELAY_C_STATE); - if ((rev = hal2_rev_look(hal2)) & H2_REV_AUDIO_PRESENT) - return -ENODEV; - - board = (rev & H2_REV_BOARD_M) >> 12; - major = (rev & H2_REV_MAJOR_CHIP_M) >> 4; - minor = (rev & H2_REV_MINOR_CHIP_M); - - printk(KERN_INFO "SGI HAL2 revision %i.%i.%i\n", - board, major, minor); - - return 0; -} - -static int hal2_init_card(struct hal2_card **phal2, struct hpc3_regs *hpc3) -{ - int ret = 0; - struct hal2_card *hal2; - - hal2 = kzalloc(sizeof(struct hal2_card), GFP_KERNEL); - if (!hal2) - return -ENOMEM; - - hal2->ctl_regs = (struct hal2_ctl_regs *)hpc3->pbus_extregs[0]; - hal2->aes_regs = (struct hal2_aes_regs *)hpc3->pbus_extregs[1]; - hal2->vol_regs = (struct hal2_vol_regs *)hpc3->pbus_extregs[2]; - hal2->syn_regs = (struct hal2_syn_regs *)hpc3->pbus_extregs[3]; - - if (hal2_detect(hal2) < 0) { - ret = -ENODEV; - goto free_card; - } - - hal2_init_codec(&hal2->dac, hpc3, 0); - hal2_init_codec(&hal2->adc, hpc3, 1); - - /* - * All DMA channel interfaces in HAL2 are designed to operate with - * PBUS programmed for 2 cycles in D3, 2 cycles in D4 and 2 cycles - * in D5. HAL2 is a 16-bit device which can accept both big and little - * endian format. It assumes that even address bytes are on high - * portion of PBUS (15:8) and assumes that HPC3 is programmed to - * accept a live (unsynchronized) version of P_DREQ_N from HAL2. - */ -#define HAL2_PBUS_DMACFG ((0 << HPC3_DMACFG_D3R_SHIFT) | \ - (2 << HPC3_DMACFG_D4R_SHIFT) | \ - (2 << HPC3_DMACFG_D5R_SHIFT) | \ - (0 << HPC3_DMACFG_D3W_SHIFT) | \ - (2 << HPC3_DMACFG_D4W_SHIFT) | \ - (2 << HPC3_DMACFG_D5W_SHIFT) | \ - HPC3_DMACFG_DS16 | \ - HPC3_DMACFG_EVENHI | \ - HPC3_DMACFG_RTIME | \ - (8 << HPC3_DMACFG_BURST_SHIFT) | \ - HPC3_DMACFG_DRQLIVE) - /* - * Ignore what's mentioned in the specification and write value which - * works in The Real World (TM) - */ - hpc3->pbus_dmacfg[hal2->dac.pbus.pbusnr][0] = 0x8208844; - hpc3->pbus_dmacfg[hal2->adc.pbus.pbusnr][0] = 0x8208844; - - if (request_irq(SGI_HPCDMA_IRQ, hal2_interrupt, IRQF_SHARED, - hal2str, hal2)) { - printk(KERN_ERR "HAL2: Can't get irq %d\n", SGI_HPCDMA_IRQ); - ret = -EAGAIN; - goto free_card; - } - - hal2->dev_dsp = register_sound_dsp(&hal2_audio_fops, -1); - if (hal2->dev_dsp < 0) { - ret = hal2->dev_dsp; - goto free_irq; - } - - hal2->dev_mixer = register_sound_mixer(&hal2_mixer_fops, -1); - if (hal2->dev_mixer < 0) { - ret = hal2->dev_mixer; - goto unregister_dsp; - } - - hal2_init_mixer(hal2); - - *phal2 = hal2; - return 0; -unregister_dsp: - unregister_sound_dsp(hal2->dev_dsp); -free_irq: - free_irq(SGI_HPCDMA_IRQ, hal2); -free_card: - kfree(hal2); - - return ret; -} - -extern void (*indy_volume_button)(int); - -/* - * Assuming only one HAL2 card. Mail me if you ever meet machine with - * more than one. - */ -static int __init init_hal2(void) -{ - int i, error; - - for (i = 0; i < MAXCARDS; i++) - hal2_card[i] = NULL; - - error = hal2_init_card(&hal2_card[0], hpc3c0); - - /* let Indy's volume buttons work */ - if (!error && !ip22_is_fullhouse()) - indy_volume_button = hal2_volume_control; - - return error; - -} - -static void __exit exit_hal2(void) -{ - int i; - - /* unregister volume butons callback function */ - indy_volume_button = NULL; - - for (i = 0; i < MAXCARDS; i++) - if (hal2_card[i]) { - free_irq(SGI_HPCDMA_IRQ, hal2_card[i]); - unregister_sound_dsp(hal2_card[i]->dev_dsp); - unregister_sound_mixer(hal2_card[i]->dev_mixer); - kfree(hal2_card[i]); - } -} - -module_init(init_hal2); -module_exit(exit_hal2); - -MODULE_DESCRIPTION("OSS compatible driver for SGI HAL2 audio"); -MODULE_AUTHOR("Ladislav Michl"); -MODULE_LICENSE("GPL"); diff --git a/sound/oss/hal2.h b/sound/oss/hal2.h deleted file mode 100644 index 2bd3b52..0000000 --- a/sound/oss/hal2.h +++ /dev/null @@ -1,248 +0,0 @@ -#ifndef __HAL2_H -#define __HAL2_H - -/* - * Driver for HAL2 sound processors - * Copyright (c) 1999 Ulf Carlsson <ulfc(a)bun.falkenberg.se> - * Copyright (c) 2001, 2002, 2003 Ladislav Michl <ladis(a)linux-mips.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <asm/addrspace.h> -#include <asm/sgi/hpc3.h> -#include <linux/spinlock.h> -#include <linux/types.h> - -/* Indirect status register */ - -#define H2_ISR_TSTATUS 0x01 /* RO: transaction status 1=busy */ -#define H2_ISR_USTATUS 0x02 /* RO: utime status bit 1=armed */ -#define H2_ISR_QUAD_MODE 0x04 /* codec mode 0=indigo 1=quad */ -#define H2_ISR_GLOBAL_RESET_N 0x08 /* chip global reset 0=reset */ -#define H2_ISR_CODEC_RESET_N 0x10 /* codec/synth reset 0=reset */ - -/* Revision register */ - -#define H2_REV_AUDIO_PRESENT 0x8000 /* RO: audio present 0=present */ -#define H2_REV_BOARD_M 0x7000 /* RO: bits 14:12, board revision */ -#define H2_REV_MAJOR_CHIP_M 0x00F0 /* RO: bits 7:4, major chip revision */ -#define H2_REV_MINOR_CHIP_M 0x000F /* RO: bits 3:0, minor chip revision */ - -/* Indirect address register */ - -/* - * Address of indirect internal register to be accessed. A write to this - * register initiates read or write access to the indirect registers in the - * HAL2. Note that there af four indirect data registers for write access to - * registers larger than 16 byte. - */ - -#define H2_IAR_TYPE_M 0xF000 /* bits 15:12, type of functional */ - /* block the register resides in */ - /* 1=DMA Port */ - /* 9=Global DMA Control */ - /* 2=Bresenham */ - /* 3=Unix Timer */ -#define H2_IAR_NUM_M 0x0F00 /* bits 11:8 instance of the */ - /* blockin which the indirect */ - /* register resides */ - /* If IAR_TYPE_M=DMA Port: */ - /* 1=Synth In */ - /* 2=AES In */ - /* 3=AES Out */ - /* 4=DAC Out */ - /* 5=ADC Out */ - /* 6=Synth Control */ - /* If IAR_TYPE_M=Global DMA Control: */ - /* 1=Control */ - /* If IAR_TYPE_M=Bresenham: */ - /* 1=Bresenham Clock Gen 1 */ - /* 2=Bresenham Clock Gen 2 */ - /* 3=Bresenham Clock Gen 3 */ - /* If IAR_TYPE_M=Unix Timer: */ - /* 1=Unix Timer */ -#define H2_IAR_ACCESS_SELECT 0x0080 /* 1=read 0=write */ -#define H2_IAR_PARAM 0x000C /* Parameter Select */ -#define H2_IAR_RB_INDEX_M 0x0003 /* Read Back Index */ - /* 00:word0 */ - /* 01:word1 */ - /* 10:word2 */ - /* 11:word3 */ -/* - * HAL2 internal addressing - * - * The HAL2 has "indirect registers" (idr) which are accessed by writing to the - * Indirect Data registers. Write the address to the Indirect Address register - * to transfer the data. - * - * We define the H2IR_* to the read address and H2IW_* to the write address and - * H2I_* to be fields in whatever register is referred to. - * - * When we write to indirect registers which are larger than one word (16 bit) - * we have to fill more than one indirect register before writing. When we read - * back however we have to read several times, each time with different Read - * Back Indexes (there are defs for doing this easily). - */ - -/* - * Relay Control - */ -#define H2I_RELAY_C 0x9100 -#define H2I_RELAY_C_STATE 0x01 /* state of RELAY pin signal */ - -/* DMA port enable */ - -#define H2I_DMA_PORT_EN 0x9104 -#define H2I_DMA_PORT_EN_SY_IN 0x01 /* Synth_in DMA port */ -#define H2I_DMA_PORT_EN_AESRX 0x02 /* AES receiver DMA port */ -#define H2I_DMA_PORT_EN_AESTX 0x04 /* AES transmitter DMA port */ -#define H2I_DMA_PORT_EN_CODECTX 0x08 /* CODEC transmit DMA port */ -#define H2I_DMA_PORT_EN_CODECR 0x10 /* CODEC receive DMA port */ - -#define H2I_DMA_END 0x9108 /* global dma endian select */ -#define H2I_DMA_END_SY_IN 0x01 /* Synth_in DMA port */ -#define H2I_DMA_END_AESRX 0x02 /* AES receiver DMA port */ -#define H2I_DMA_END_AESTX 0x04 /* AES transmitter DMA port */ -#define H2I_DMA_END_CODECTX 0x08 /* CODEC transmit DMA port */ -#define H2I_DMA_END_CODECR 0x10 /* CODEC receive DMA port */ - /* 0=b_end 1=l_end */ - -#define H2I_DMA_DRV 0x910C /* global PBUS DMA enable */ - -#define H2I_SYNTH_C 0x1104 /* Synth DMA control */ - -#define H2I_AESRX_C 0x1204 /* AES RX dma control */ - -#define H2I_C_TS_EN 0x20 /* Timestamp enable */ -#define H2I_C_TS_FRMT 0x40 /* Timestamp format */ -#define H2I_C_NAUDIO 0x80 /* Sign extend */ - -/* AESRX CTL, 16 bit */ - -#define H2I_AESTX_C 0x1304 /* AES TX DMA control */ -#define H2I_AESTX_C_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */ -#define H2I_AESTX_C_CLKID_M 0x18 -#define H2I_AESTX_C_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */ -#define H2I_AESTX_C_DATAT_M 0x300 - -/* CODEC registers */ - -#define H2I_DAC_C1 0x1404 /* DAC DMA control, 16 bit */ -#define H2I_DAC_C2 0x1408 /* DAC DMA control, 32 bit */ -#define H2I_ADC_C1 0x1504 /* ADC DMA control, 16 bit */ -#define H2I_ADC_C2 0x1508 /* ADC DMA control, 32 bit */ - -/* Bits in CTL1 register */ - -#define H2I_C1_DMA_SHIFT 0 /* DMA channel */ -#define H2I_C1_DMA_M 0x7 -#define H2I_C1_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */ -#define H2I_C1_CLKID_M 0x18 -#define H2I_C1_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */ -#define H2I_C1_DATAT_M 0x300 - -/* Bits in CTL2 register */ - -#define H2I_C2_R_GAIN_SHIFT 0 /* right a/d input gain */ -#define H2I_C2_R_GAIN_M 0xf -#define H2I_C2_L_GAIN_SHIFT 4 /* left a/d input gain */ -#define H2I_C2_L_GAIN_M 0xf0 -#define H2I_C2_R_SEL 0x100 /* right input select */ -#define H2I_C2_L_SEL 0x200 /* left input select */ -#define H2I_C2_MUTE 0x400 /* mute */ -#define H2I_C2_DO1 0x00010000 /* digital output port bit 0 */ -#define H2I_C2_DO2 0x00020000 /* digital output port bit 1 */ -#define H2I_C2_R_ATT_SHIFT 18 /* right d/a output - */ -#define H2I_C2_R_ATT_M 0x007c0000 /* attenuation */ -#define H2I_C2_L_ATT_SHIFT 23 /* left d/a output - */ -#define H2I_C2_L_ATT_M 0x0f800000 /* attenuation */ - -#define H2I_SYNTH_MAP_C 0x1104 /* synth dma handshake ctrl */ - -/* Clock generator CTL 1, 16 bit */ - -#define H2I_BRES1_C1 0x2104 -#define H2I_BRES2_C1 0x2204 -#define H2I_BRES3_C1 0x2304 - -#define H2I_BRES_C1_SHIFT 0 /* 0=48.0 1=44.1 2=aes_rx */ -#define H2I_BRES_C1_M 0x03 - -/* Clock generator CTL 2, 32 bit */ - -#define H2I_BRES1_C2 0x2108 -#define H2I_BRES2_C2 0x2208 -#define H2I_BRES3_C2 0x2308 - -#define H2I_BRES_C2_INC_SHIFT 0 /* increment value */ -#define H2I_BRES_C2_INC_M 0xffff -#define H2I_BRES_C2_MOD_SHIFT 16 /* modcontrol value */ -#define H2I_BRES_C2_MOD_M 0xffff0000 /* modctrl=0xffff&(modinc-1) */ - -/* Unix timer, 64 bit */ - -#define H2I_UTIME 0x3104 -#define H2I_UTIME_0_LD 0xffff /* microseconds, LSB's */ -#define H2I_UTIME_1_LD0 0x0f /* microseconds, MSB's */ -#define H2I_UTIME_1_LD1 0xf0 /* tenths of microseconds */ -#define H2I_UTIME_2_LD 0xffff /* seconds, LSB's */ -#define H2I_UTIME_3_LD 0xffff /* seconds, MSB's */ - -struct hal2_ctl_regs { - u32 _unused0[4]; - volatile u32 isr; /* 0x10 Status Register */ - u32 _unused1[3]; - volatile u32 rev; /* 0x20 Revision Register */ - u32 _unused2[3]; - volatile u32 iar; /* 0x30 Indirect Address Register */ - u32 _unused3[3]; - volatile u32 idr0; /* 0x40 Indirect Data Register 0 */ - u32 _unused4[3]; - volatile u32 idr1; /* 0x50 Indirect Data Register 1 */ - u32 _unused5[3]; - volatile u32 idr2; /* 0x60 Indirect Data Register 2 */ - u32 _unused6[3]; - volatile u32 idr3; /* 0x70 Indirect Data Register 3 */ -}; - -struct hal2_aes_regs { - volatile u32 rx_stat[2]; /* Status registers */ - volatile u32 rx_cr[2]; /* Control registers */ - volatile u32 rx_ud[4]; /* User data window */ - volatile u32 rx_st[24]; /* Channel status data */ - - volatile u32 tx_stat[1]; /* Status register */ - volatile u32 tx_cr[3]; /* Control registers */ - volatile u32 tx_ud[4]; /* User data window */ - volatile u32 tx_st[24]; /* Channel status data */ -}; - -struct hal2_vol_regs { - volatile u32 right; /* Right volume */ - volatile u32 left; /* Left volume */ -}; - -struct hal2_syn_regs { - u32 _unused0[2]; - volatile u32 page; /* DOC Page register */ - volatile u32 regsel; /* DOC Register selection */ - volatile u32 dlow; /* DOC Data low */ - volatile u32 dhigh; /* DOC Data high */ - volatile u32 irq; /* IRQ Status */ - volatile u32 dram; /* DRAM Access */ -}; - -#endif /* __HAL2_H */

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Re: [alsa-devel] [PATCH] duplicate SNDRV_PCM_FMTBIT_S{16,24}_BE
by Johannes Berg 19 Aug '08

19 Aug '08

roel kluin wrote: > untested, is it correct? not a clue, do you know how long ago that was? :) does the driver check endianness anywhere? > duplicate SNDRV_PCM_FMTBIT_S{16,24}_BE > > Signed-off-by: Roel Kluin <roel.kluin(a)gmail.com> > --- > diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c > b/sound/aoa/codecs/snd-aoa-codec-tas.c > index 7a16a33..c922505 100644 > --- a/sound/aoa/codecs/snd-aoa-codec-tas.c > +++ b/sound/aoa/codecs/snd-aoa-codec-tas.c > @@ -654,15 +654,15 @@ static struct snd_kcontrol_new bass_control = { > static struct transfer_info tas_transfers[] = { > { > /* input */ > - .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE | > - SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE, > + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | > + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, > .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | > SNDRV_PCM_RATE_48000, > .transfer_in = 1, > }, > { > /* output */ > - .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE | > - SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE, > + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | > + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, > .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | > SNDRV_PCM_RATE_48000, > .transfer_in = 0, > }, > >

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[alsa-devel] 1.0.18rc1 release. alsa-lib 1.0.17a
by Jaroslav Kysela 19 Aug '08

19 Aug '08

Hi all, I released alsa-driver, alsa-utils, and alsa-plugins packages version 1.0.18rc1. The alsa-lib tree had a few short bugfix commits - so stable alsa-lib 1.0.17a is available for download now. For changes see: http://www.alsa-project.org/main/index.php/Changes_v1.0.17_v1.0.17a http://www.alsa-project.org/main/index.php/Changes_v1.0.17a_v1.0.18rc1 Jaroslav ----- Jaroslav Kysela <perex(a)perex.cz> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.

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[alsa-devel] alsa git: which version of ac97_codec.c am i supposed to hxr?
by John L. Utz III 18 Aug '08

18 Aug '08

Hello All; I feel confused by the presence of 2 different copies of ac97_codec.c: jutz-gnto ~ # find . -name ac97_codec.c ./alsa-driver/pci/ac97/ac97_codec.c ./alsa-kmirror/pci/ac97/ac97_codec.c worse yet,they are not in sync: jutz-gnto ~ # diff -w ./alsa-driver/pci/ac97/ac97_codec.c ./alsa-kmirror/pci/ac97/ac97_codec.c 1d0 < #include "adriver.h" 38c37 < #include "../../alsa-kernel/pci/ac97/ac97_id.h" --- > #include "ac97_id.h" 40c39 < #include "../../alsa-kernel/pci/ac97/ac97_patch.c" --- > #include "ac97_patch.c" 1917d1915 < #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) 1929d1926 < #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 14) 1931d1927 < #endif 1953,1956d1948 < #else /* <= 2.6.0 */ < #define snd_ac97_dev_register NULL < #define snd_ac97_dev_disconnect NULL < #endif Which of these am i supposed to use? am i supposed to change both of them for some backward compatibility purpose? tnx! johnu

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[alsa-devel] alsactl init - next round
by Jaroslav Kysela 18 Aug '08

18 Aug '08

Hello, The 'alsactl init' command becomes more powerful now. - support for dB - better support for enumerated controls - better "ready to use" udev support, expected use: RUN="/usr/sbin/alsactl -r /var/run/alsactl.init restore $name" - initialization using a guess method - the init/default configuration mostly copied from the alsaconf script, see http://git.alsa-project.org/?p=alsa-utils.git;a=blob_plain;f=alsactl/init/d… The cardinfo database is slowly filling. We have over 120 files there now. Any volunteer for watching of these files and writting a suitable configuration files for 'alsactl init' here? I'm not sure about the initialization procedure. I selected the method - look to database and if not found - use the default "guess" method (without any warranty). But the opposite way is also possible - do a universal initialization and modify only special parameters for specific hardware. Jaroslav ----- Jaroslav Kysela <perex(a)perex.cz> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.

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