diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/als4000.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/als4000.c | 1061 |
1 files changed, 0 insertions, 1061 deletions
diff --git a/ANDROID_3.4.5/sound/pci/als4000.c b/ANDROID_3.4.5/sound/pci/als4000.c deleted file mode 100644 index 3269b801..00000000 --- a/ANDROID_3.4.5/sound/pci/als4000.c +++ /dev/null @@ -1,1061 +0,0 @@ -/* - * card-als4000.c - driver for Avance Logic ALS4000 based soundcards. - * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>, - * Jaroslav Kysela <perex@perex.cz> - * Copyright (C) 2002, 2008 by Andreas Mohr <hw7oshyuv3001@sneakemail.com> - * - * Framework borrowed from Massimo Piccioni's card-als100.c. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * NOTES - * - * Since Avance does not provide any meaningful documentation, and I - * bought an ALS4000 based soundcard, I was forced to base this driver - * on reverse engineering. - * - * Note: this is no longer true (thank you!): - * pretty verbose chip docu (ALS4000a.PDF) can be found on the ALSA web site. - * Page numbers stated anywhere below with the "SPECS_PAGE:" tag - * refer to: ALS4000a.PDF specs Ver 1.0, May 28th, 1998. - * - * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an - * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport - * interface. These subsystems can be mapped into ISA io-port space, - * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ - * services to the subsystems. - * - * While ALS4000 is very similar to a SoundBlaster, the differences in - * DMA and capturing require more changes to the SoundBlaster than - * desirable, so I made this separate driver. - * - * The ALS4000 can do real full duplex playback/capture. - * - * FMDAC: - * - 0x4f -> port 0x14 - * - port 0x15 |= 1 - * - * Enable/disable 3D sound: - * - 0x50 -> port 0x14 - * - change bit 6 (0x40) of port 0x15 - * - * Set QSound: - * - 0xdb -> port 0x14 - * - set port 0x15: - * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0) - * - * Set KSound: - * - value -> some port 0x0c0d - * - * ToDo: - * - by default, don't enable legacy game and use PCI game I/O - * - power management? (card can do voice wakeup according to datasheet!!) - */ - -#include <asm/io.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/gameport.h> -#include <linux/module.h> -#include <linux/dma-mapping.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/rawmidi.h> -#include <sound/mpu401.h> -#include <sound/opl3.h> -#include <sound/sb.h> -#include <sound/initval.h> - -MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>, Andreas Mohr"); -MODULE_DESCRIPTION("Avance Logic ALS4000"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}"); - -#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) -#define SUPPORT_JOYSTICK 1 -#endif - -static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ -static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ -static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ -#ifdef SUPPORT_JOYSTICK -static int joystick_port[SNDRV_CARDS]; -#endif - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); -#ifdef SUPPORT_JOYSTICK -module_param_array(joystick_port, int, NULL, 0444); -MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); -#endif - -struct snd_card_als4000 { - /* most frequent access first */ - unsigned long iobase; - struct pci_dev *pci; - struct snd_sb *chip; -#ifdef SUPPORT_JOYSTICK - struct gameport *gameport; -#endif -}; - -static DEFINE_PCI_DEVICE_TABLE(snd_als4000_ids) = { - { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ - { 0, } -}; - -MODULE_DEVICE_TABLE(pci, snd_als4000_ids); - -enum als4k_iobase_t { - /* IOx: B == Byte, W = Word, D = DWord; SPECS_PAGE: 37 */ - 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_IRQTYPE_SB_CR1E_MPU = 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_RESET = 0x16, - ALS4K_IOB_16_ACK_FOR_CR1E = 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_iobase_0e_t { - ALS4K_IOB_0E_MPU_IRQ = 0x10, - ALS4K_IOB_0E_CR1E_IRQ = 0x40, - ALS4K_IOB_0E_SB_DMA_IRQ = 0x80, -}; - -enum als4k_gcr_t { /* all registers 32bit wide; SPECS_PAGE: 38 to 42 */ - ALS4K_GCR8C_MISC_CTRL = 0x8c, - ALS4K_GCR90_TEST_MODE_REG = 0x90, - ALS4K_GCR91_DMA0_ADDR = 0x91, - ALS4K_GCR92_DMA0_MODE_COUNT = 0x92, - ALS4K_GCR93_DMA1_ADDR = 0x93, - ALS4K_GCR94_DMA1_MODE_COUNT = 0x94, - ALS4K_GCR95_DMA3_ADDR = 0x95, - ALS4K_GCR96_DMA3_MODE_COUNT = 0x96, - ALS4K_GCR99_DMA_EMULATION_CTRL = 0x99, - ALS4K_GCRA0_FIFO1_CURRENT_ADDR = 0xa0, - ALS4K_GCRA1_FIFO1_STATUS_BYTECOUNT = 0xa1, - ALS4K_GCRA2_FIFO2_PCIADDR = 0xa2, - ALS4K_GCRA3_FIFO2_COUNT = 0xa3, - ALS4K_GCRA4_FIFO2_CURRENT_ADDR = 0xa4, - ALS4K_GCRA5_FIFO1_STATUS_BYTECOUNT = 0xa5, - ALS4K_GCRA6_PM_CTRL = 0xa6, - ALS4K_GCRA7_PCI_ACCESS_STORAGE = 0xa7, - ALS4K_GCRA8_LEGACY_CFG1 = 0xa8, - ALS4K_GCRA9_LEGACY_CFG2 = 0xa9, - ALS4K_GCRFF_DUMMY_SCRATCH = 0xff, -}; - -enum als4k_gcr8c_t { - ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE = 0x8000, - ALS4K_GCR8C_CHIP_REV_MASK = 0xf0000 -}; - -static inline void snd_als4k_iobase_writeb(unsigned long iobase, - enum als4k_iobase_t reg, - u8 val) -{ - outb(val, iobase + reg); -} - -static inline void snd_als4k_iobase_writel(unsigned long iobase, - enum als4k_iobase_t reg, - u32 val) -{ - outl(val, iobase + reg); -} - -static inline u8 snd_als4k_iobase_readb(unsigned long iobase, - enum als4k_iobase_t reg) -{ - return inb(iobase + reg); -} - -static inline u32 snd_als4k_iobase_readl(unsigned long iobase, - enum als4k_iobase_t reg) -{ - return inl(iobase + reg); -} - -static inline void snd_als4k_gcr_write_addr(unsigned long iobase, - enum als4k_gcr_t reg, - u32 val) -{ - snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg); - snd_als4k_iobase_writel(iobase, ALS4K_IOD_08_GCR_DATA, val); -} - -static inline void snd_als4k_gcr_write(struct snd_sb *sb, - enum als4k_gcr_t reg, - u32 val) -{ - snd_als4k_gcr_write_addr(sb->alt_port, reg, val); -} - -static inline u32 snd_als4k_gcr_read_addr(unsigned long iobase, - enum als4k_gcr_t reg) -{ - /* SPECS_PAGE: 37/38 */ - snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg); - return snd_als4k_iobase_readl(iobase, ALS4K_IOD_08_GCR_DATA); -} - -static inline u32 snd_als4k_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg) -{ - return snd_als4k_gcr_read_addr(sb->alt_port, reg); -} - -enum als4k_cr_t { /* all registers 8bit wide; SPECS_PAGE: 20 to 23 */ - ALS4K_CR0_SB_CONFIG = 0x00, - ALS4K_CR2_MISC_CONTROL = 0x02, - ALS4K_CR3_CONFIGURATION = 0x03, - ALS4K_CR17_FIFO_STATUS = 0x17, - ALS4K_CR18_ESP_MAJOR_VERSION = 0x18, - ALS4K_CR19_ESP_MINOR_VERSION = 0x19, - ALS4K_CR1A_MPU401_UART_MODE_CONTROL = 0x1a, - ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO = 0x1c, - ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI = 0x1d, - ALS4K_CR1E_FIFO2_CONTROL = 0x1e, /* secondary PCM FIFO (recording) */ - ALS4K_CR3A_MISC_CONTROL = 0x3a, - ALS4K_CR3B_CRC32_BYTE0 = 0x3b, /* for testing, activate via CR3A */ - ALS4K_CR3C_CRC32_BYTE1 = 0x3c, - ALS4K_CR3D_CRC32_BYTE2 = 0x3d, - ALS4K_CR3E_CRC32_BYTE3 = 0x3e, -}; - -enum als4k_cr0_t { - ALS4K_CR0_DMA_CONTIN_MODE_CTRL = 0x02, /* IRQ/FIFO controlled for 0/1 */ - ALS4K_CR0_DMA_90H_MODE_CTRL = 0x04, /* IRQ/FIFO controlled for 0/1 */ - ALS4K_CR0_MX80_81_REG_WRITE_ENABLE = 0x80, -}; - -static inline void snd_als4_cr_write(struct snd_sb *chip, - enum als4k_cr_t reg, - u8 data) -{ - /* Control Register is reg | 0xc0 (bit 7, 6 set) on sbmixer_index - * NOTE: assumes chip->mixer_lock to be locked externally already! - * SPECS_PAGE: 6 */ - snd_sbmixer_write(chip, reg | 0xc0, data); -} - -static inline u8 snd_als4_cr_read(struct snd_sb *chip, - enum als4k_cr_t reg) -{ - /* NOTE: assumes chip->mixer_lock to be locked externally already! */ - return snd_sbmixer_read(chip, reg | 0xc0); -} - - - -static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate) -{ - if (!(chip->mode & SB_RATE_LOCK)) { - snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT); - snd_sbdsp_command(chip, rate>>8); - snd_sbdsp_command(chip, rate); - } -} - -static inline void snd_als4000_set_capture_dma(struct snd_sb *chip, - dma_addr_t addr, unsigned size) -{ - /* SPECS_PAGE: 40 */ - snd_als4k_gcr_write(chip, ALS4K_GCRA2_FIFO2_PCIADDR, addr); - snd_als4k_gcr_write(chip, ALS4K_GCRA3_FIFO2_COUNT, (size-1)); -} - -static inline void snd_als4000_set_playback_dma(struct snd_sb *chip, - dma_addr_t addr, - unsigned size) -{ - /* SPECS_PAGE: 38 */ - snd_als4k_gcr_write(chip, ALS4K_GCR91_DMA0_ADDR, addr); - snd_als4k_gcr_write(chip, ALS4K_GCR92_DMA0_MODE_COUNT, - (size-1)|0x180000); -} - -#define ALS4000_FORMAT_SIGNED (1<<0) -#define ALS4000_FORMAT_16BIT (1<<1) -#define ALS4000_FORMAT_STEREO (1<<2) - -static int snd_als4000_get_format(struct snd_pcm_runtime *runtime) -{ - int result; - - result = 0; - if (snd_pcm_format_signed(runtime->format)) - result |= ALS4000_FORMAT_SIGNED; - if (snd_pcm_format_physical_width(runtime->format) == 16) - result |= ALS4000_FORMAT_16BIT; - if (runtime->channels > 1) - result |= ALS4000_FORMAT_STEREO; - return result; -} - -/* structure for setting up playback */ -static const struct { - unsigned char dsp_cmd, dma_on, dma_off, format; -} playback_cmd_vals[]={ -/* ALS4000_FORMAT_U8_MONO */ -{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO }, -/* ALS4000_FORMAT_S8_MONO */ -{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO }, -/* ALS4000_FORMAT_U16L_MONO */ -{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO }, -/* ALS4000_FORMAT_S16L_MONO */ -{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO }, -/* ALS4000_FORMAT_U8_STEREO */ -{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO }, -/* ALS4000_FORMAT_S8_STEREO */ -{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO }, -/* ALS4000_FORMAT_U16L_STEREO */ -{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO }, -/* ALS4000_FORMAT_S16L_STEREO */ -{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO }, -}; -#define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format]) - -/* structure for setting up capture */ -enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; -static const unsigned char capture_cmd_vals[]= -{ -CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ -CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ -CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ -CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ -CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ -CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ -CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ -CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ -}; -#define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) - -static int snd_als4000_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); -} - -static int snd_als4000_hw_free(struct snd_pcm_substream *substream) -{ - snd_pcm_lib_free_pages(substream); - return 0; -} - -static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned long size; - unsigned count; - - chip->capture_format = snd_als4000_get_format(runtime); - - size = snd_pcm_lib_buffer_bytes(substream); - count = snd_pcm_lib_period_bytes(substream); - - if (chip->capture_format & ALS4000_FORMAT_16BIT) - count >>= 1; - count--; - - spin_lock_irq(&chip->reg_lock); - snd_als4000_set_rate(chip, runtime->rate); - snd_als4000_set_capture_dma(chip, runtime->dma_addr, size); - spin_unlock_irq(&chip->reg_lock); - spin_lock_irq(&chip->mixer_lock); - snd_als4_cr_write(chip, ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO, count & 0xff); - snd_als4_cr_write(chip, ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI, count >> 8); - spin_unlock_irq(&chip->mixer_lock); - return 0; -} - -static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned long size; - unsigned count; - - chip->playback_format = snd_als4000_get_format(runtime); - - size = snd_pcm_lib_buffer_bytes(substream); - count = snd_pcm_lib_period_bytes(substream); - - if (chip->playback_format & ALS4000_FORMAT_16BIT) - count >>= 1; - count--; - - /* FIXME: from second playback on, there's a lot more clicks and pops - * involved here than on first playback. Fiddling with - * tons of different settings didn't help (DMA, speaker on/off, - * reordering, ...). Something seems to get enabled on playback - * that I haven't found out how to disable again, which then causes - * the switching pops to reach the speakers the next time here. */ - spin_lock_irq(&chip->reg_lock); - snd_als4000_set_rate(chip, runtime->rate); - snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); - - /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ - /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */ - snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); - snd_sbdsp_command(chip, playback_cmd(chip).format); - snd_sbdsp_command(chip, count & 0xff); - snd_sbdsp_command(chip, count >> 8); - snd_sbdsp_command(chip, playback_cmd(chip).dma_off); - spin_unlock_irq(&chip->reg_lock); - - return 0; -} - -static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd) -{ - 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: - case SNDRV_PCM_TRIGGER_RESUME: - chip->mode |= SB_RATE_LOCK_CAPTURE; - snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL, - capture_cmd(chip)); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - chip->mode &= ~SB_RATE_LOCK_CAPTURE; - snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL, - capture_cmd(chip)); - break; - default: - result = -EINVAL; - break; - } - spin_unlock(&chip->mixer_lock); - return result; -} - -static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - int result = 0; - - spin_lock(&chip->reg_lock); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - chip->mode |= SB_RATE_LOCK_PLAYBACK; - snd_sbdsp_command(chip, playback_cmd(chip).dma_on); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - snd_sbdsp_command(chip, playback_cmd(chip).dma_off); - chip->mode &= ~SB_RATE_LOCK_PLAYBACK; - break; - default: - result = -EINVAL; - break; - } - spin_unlock(&chip->reg_lock); - return result; -} - -static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - unsigned int result; - - spin_lock(&chip->reg_lock); - result = snd_als4k_gcr_read(chip, ALS4K_GCRA4_FIFO2_CURRENT_ADDR); - spin_unlock(&chip->reg_lock); - result &= 0xffff; - return bytes_to_frames( substream->runtime, result ); -} - -static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - unsigned result; - - spin_lock(&chip->reg_lock); - result = snd_als4k_gcr_read(chip, ALS4K_GCRA0_FIFO1_CURRENT_ADDR); - spin_unlock(&chip->reg_lock); - result &= 0xffff; - return bytes_to_frames( substream->runtime, result ); -} - -/* FIXME: this IRQ routine doesn't really support IRQ sharing (we always - * 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 + ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU). 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, SPECS_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) -{ - struct snd_sb *chip = dev_id; - unsigned pci_irqstatus; - unsigned sb_irqstatus; - - /* find out which bit of the ALS4000 PCI block produced the interrupt, - SPECS_PAGE: 38, 5 */ - pci_irqstatus = snd_als4k_iobase_readb(chip->alt_port, - ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU); - if ((pci_irqstatus & ALS4K_IOB_0E_SB_DMA_IRQ) - && (chip->playback_substream)) /* playback */ - snd_pcm_period_elapsed(chip->playback_substream); - if ((pci_irqstatus & ALS4K_IOB_0E_CR1E_IRQ) - && (chip->capture_substream)) /* capturing */ - snd_pcm_period_elapsed(chip->capture_substream); - if ((pci_irqstatus & ALS4K_IOB_0E_MPU_IRQ) - && (chip->rmidi)) /* MPU401 interrupt */ - snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); - /* ACK the PCI block IRQ */ - snd_als4k_iobase_writeb(chip->alt_port, - ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU, pci_irqstatus); - - spin_lock(&chip->mixer_lock); - /* SPECS_PAGE: 20 */ - sb_irqstatus = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); - spin_unlock(&chip->mixer_lock); - - if (sb_irqstatus & SB_IRQTYPE_8BIT) - snd_sb_ack_8bit(chip); - if (sb_irqstatus & SB_IRQTYPE_16BIT) - snd_sb_ack_16bit(chip); - if (sb_irqstatus & SB_IRQTYPE_MPUIN) - inb(chip->mpu_port); - if (sb_irqstatus & ALS4K_IRQTYPE_CR1E_DMA) - snd_als4k_iobase_readb(chip->alt_port, - ALS4K_IOB_16_ACK_FOR_CR1E); - - /* printk(KERN_INFO "als4000: irq 0x%04x 0x%04x\n", - pci_irqstatus, sb_irqstatus); */ - - /* only ack the things we actually handled above */ - return IRQ_RETVAL( - (pci_irqstatus & (ALS4K_IOB_0E_SB_DMA_IRQ|ALS4K_IOB_0E_CR1E_IRQ| - ALS4K_IOB_0E_MPU_IRQ)) - || (sb_irqstatus & (SB_IRQTYPE_8BIT|SB_IRQTYPE_16BIT| - SB_IRQTYPE_MPUIN|ALS4K_IRQTYPE_CR1E_DMA)) - ); -} - -/*****************************************************************/ - -static struct snd_pcm_hardware snd_als4000_playback = -{ - .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP_VALID), - .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ - .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, - .rate_min = 4000, - .rate_max = 48000, - .channels_min = 1, - .channels_max = 2, - .buffer_bytes_max = 65536, - .period_bytes_min = 64, - .period_bytes_max = 65536, - .periods_min = 1, - .periods_max = 1024, - .fifo_size = 0 -}; - -static struct snd_pcm_hardware snd_als4000_capture = -{ - .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP_VALID), - .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ - .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, - .rate_min = 4000, - .rate_max = 48000, - .channels_min = 1, - .channels_max = 2, - .buffer_bytes_max = 65536, - .period_bytes_min = 64, - .period_bytes_max = 65536, - .periods_min = 1, - .periods_max = 1024, - .fifo_size = 0 -}; - -/*****************************************************************/ - -static int snd_als4000_playback_open(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - - chip->playback_substream = substream; - runtime->hw = snd_als4000_playback; - return 0; -} - -static int snd_als4000_playback_close(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - - chip->playback_substream = NULL; - snd_pcm_lib_free_pages(substream); - return 0; -} - -static int snd_als4000_capture_open(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - - chip->capture_substream = substream; - runtime->hw = snd_als4000_capture; - return 0; -} - -static int snd_als4000_capture_close(struct snd_pcm_substream *substream) -{ - struct snd_sb *chip = snd_pcm_substream_chip(substream); - - chip->capture_substream = NULL; - snd_pcm_lib_free_pages(substream); - return 0; -} - -/******************************************************************/ - -static struct snd_pcm_ops snd_als4000_playback_ops = { - .open = snd_als4000_playback_open, - .close = snd_als4000_playback_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_als4000_hw_params, - .hw_free = snd_als4000_hw_free, - .prepare = snd_als4000_playback_prepare, - .trigger = snd_als4000_playback_trigger, - .pointer = snd_als4000_playback_pointer -}; - -static struct snd_pcm_ops snd_als4000_capture_ops = { - .open = snd_als4000_capture_open, - .close = snd_als4000_capture_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_als4000_hw_params, - .hw_free = snd_als4000_hw_free, - .prepare = snd_als4000_capture_prepare, - .trigger = snd_als4000_capture_trigger, - .pointer = snd_als4000_capture_pointer -}; - -static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device) -{ - struct snd_pcm *pcm; - int err; - - err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm); - if (err < 0) - return err; - pcm->private_data = chip; - pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); - - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), - 64*1024, 64*1024); - - chip->pcm = pcm; - - return 0; -} - -/******************************************************************/ - -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_als4k_gcr_write_addr(iobase, ALS4K_GCRA8_LEGACY_CFG1, cfg1); - snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA9_LEGACY_CFG2, cfg2); -} - -static void snd_als4000_configure(struct snd_sb *chip) -{ - u8 tmp; - int i; - - /* do some more configuration */ - spin_lock_irq(&chip->mixer_lock); - tmp = snd_als4_cr_read(chip, ALS4K_CR0_SB_CONFIG); - snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG, - tmp|ALS4K_CR0_MX80_81_REG_WRITE_ENABLE); - /* always select DMA channel 0, since we do not actually use DMA - * SPECS_PAGE: 19/20 */ - snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); - snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG, - tmp & ~ALS4K_CR0_MX80_81_REG_WRITE_ENABLE); - spin_unlock_irq(&chip->mixer_lock); - - spin_lock_irq(&chip->reg_lock); - /* enable interrupts */ - snd_als4k_gcr_write(chip, ALS4K_GCR8C_MISC_CTRL, - ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE); - - /* SPECS_PAGE: 39 */ - for (i = ALS4K_GCR91_DMA0_ADDR; i <= ALS4K_GCR96_DMA3_MODE_COUNT; ++i) - snd_als4k_gcr_write(chip, i, 0); - /* enable burst mode to prevent dropouts during high PCI bus usage */ - snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL, - (snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) & ~0x07) | 0x04); - spin_unlock_irq(&chip->reg_lock); -} - -#ifdef SUPPORT_JOYSTICK -static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) -{ - struct gameport *gp; - struct resource *r; - int io_port; - - if (joystick_port[dev] == 0) - return -ENODEV; - - if (joystick_port[dev] == 1) { /* auto-detect */ - for (io_port = 0x200; io_port <= 0x218; io_port += 8) { - r = request_region(io_port, 8, "ALS4000 gameport"); - if (r) - break; - } - } else { - io_port = joystick_port[dev]; - r = request_region(io_port, 8, "ALS4000 gameport"); - } - - if (!r) { - printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); - return -EBUSY; - } - - acard->gameport = gp = gameport_allocate_port(); - if (!gp) { - printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); - release_and_free_resource(r); - return -ENOMEM; - } - - gameport_set_name(gp, "ALS4000 Gameport"); - gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); - gameport_set_dev_parent(gp, &acard->pci->dev); - gp->io = io_port; - gameport_set_port_data(gp, r); - - /* Enable legacy joystick port */ - snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); - - gameport_register_port(acard->gameport); - - return 0; -} - -static void snd_als4000_free_gameport(struct snd_card_als4000 *acard) -{ - if (acard->gameport) { - struct resource *r = gameport_get_port_data(acard->gameport); - - gameport_unregister_port(acard->gameport); - acard->gameport = NULL; - - /* disable joystick */ - snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); - - release_and_free_resource(r); - } -} -#else -static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; } -static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { } -#endif - -static void snd_card_als4000_free( struct snd_card *card ) -{ - struct snd_card_als4000 *acard = card->private_data; - - /* make sure that interrupts are disabled */ - snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0); - /* free resources */ - snd_als4000_free_gameport(acard); - pci_release_regions(acard->pci); - pci_disable_device(acard->pci); -} - -static int __devinit snd_card_als4000_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - static int dev; - struct snd_card *card; - struct snd_card_als4000 *acard; - unsigned long iobase; - struct snd_sb *chip; - struct snd_opl3 *opl3; - unsigned short word; - int err; - - if (dev >= SNDRV_CARDS) - return -ENODEV; - if (!enable[dev]) { - dev++; - return -ENOENT; - } - - /* enable PCI device */ - if ((err = pci_enable_device(pci)) < 0) { - return err; - } - /* check, if we can restrict PCI DMA transfers to 24 bits */ - if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 || - pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) { - snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n"); - pci_disable_device(pci); - return -ENXIO; - } - - if ((err = pci_request_regions(pci, "ALS4000")) < 0) { - pci_disable_device(pci); - return err; - } - 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); - pci_set_master(pci); - - err = snd_card_create(index[dev], id[dev], THIS_MODULE, - sizeof(*acard) /* private_data: acard */, - &card); - if (err < 0) { - pci_release_regions(pci); - pci_disable_device(pci); - return err; - } - - acard = card->private_data; - acard->pci = pci; - acard->iobase = iobase; - card->private_free = snd_card_als4000_free; - - /* disable all legacy ISA stuff */ - snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); - - if ((err = snd_sbdsp_create(card, - iobase + ALS4K_IOB_10_ADLIB_ADDR0, - pci->irq, - /* internally registered as IRQF_SHARED in case of ALS4000 SB */ - snd_als4000_interrupt, - -1, - -1, - SB_HW_ALS4000, - &chip)) < 0) { - goto out_err; - } - acard->chip = chip; - - chip->pci = pci; - chip->alt_port = iobase; - snd_card_set_dev(card, &pci->dev); - - snd_als4000_configure(chip); - - strcpy(card->driver, "ALS4000"); - strcpy(card->shortname, "Avance Logic ALS4000"); - sprintf(card->longname, "%s at 0x%lx, irq %i", - card->shortname, chip->alt_port, chip->irq); - - if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, - iobase + ALS4K_IOB_30_MIDI_DATA, - MPU401_INFO_INTEGRATED | - MPU401_INFO_IRQ_HOOK, - -1, &chip->rmidi)) < 0) { - 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 ALS4K_CR1A_MPU401_UART_MODE_CONTROL - * (pass-thru / UART switching, fast MIDI clock, etc.), - * however there doesn't seem to be an ALSA API for this... - * SPECS_PAGE: 21 */ - - if ((err = snd_als4000_pcm(chip, 0)) < 0) { - goto out_err; - } - if ((err = snd_sbmixer_new(chip)) < 0) { - goto out_err; - } - - 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", - 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; - } - } - - snd_als4000_create_gameport(acard, dev); - - if ((err = snd_card_register(card)) < 0) { - goto out_err; - } - pci_set_drvdata(pci, card); - dev++; - err = 0; - goto out; - -out_err: - snd_card_free(card); - -out: - return err; -} - -static void __devexit snd_card_als4000_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - -#ifdef CONFIG_PM -static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct snd_card_als4000 *acard = card->private_data; - struct snd_sb *chip = acard->chip; - - snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); - - snd_pcm_suspend_all(chip->pcm); - snd_sbmixer_suspend(chip); - - pci_disable_device(pci); - pci_save_state(pci); - pci_set_power_state(pci, pci_choose_state(pci, state)); - return 0; -} - -static int snd_als4000_resume(struct pci_dev *pci) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct snd_card_als4000 *acard = card->private_data; - struct snd_sb *chip = acard->chip; - - pci_set_power_state(pci, PCI_D0); - pci_restore_state(pci); - if (pci_enable_device(pci) < 0) { - printk(KERN_ERR "als4000: pci_enable_device failed, " - "disabling device\n"); - snd_card_disconnect(card); - return -EIO; - } - pci_set_master(pci); - - snd_als4000_configure(chip); - snd_sbdsp_reset(chip); - snd_sbmixer_resume(chip); - -#ifdef SUPPORT_JOYSTICK - if (acard->gameport) - snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); -#endif - - snd_power_change_state(card, SNDRV_CTL_POWER_D0); - return 0; -} -#endif /* CONFIG_PM */ - - -static struct pci_driver driver = { - .name = KBUILD_MODNAME, - .id_table = snd_als4000_ids, - .probe = snd_card_als4000_probe, - .remove = __devexit_p(snd_card_als4000_remove), -#ifdef CONFIG_PM - .suspend = snd_als4000_suspend, - .resume = snd_als4000_resume, -#endif -}; - -static int __init alsa_card_als4000_init(void) -{ - return pci_register_driver(&driver); -} - -static void __exit alsa_card_als4000_exit(void) -{ - pci_unregister_driver(&driver); -} - -module_init(alsa_card_als4000_init) -module_exit(alsa_card_als4000_exit) |