| /* |
| * 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 const struct pci_device_id 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); |
| |
| /* dev_dbg(chip->card->dev, "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 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 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) { |
| dev_warn(&acard->pci->dev, "cannot reserve joystick ports\n"); |
| return -EBUSY; |
| } |
| |
| acard->gameport = gp = gameport_allocate_port(); |
| if (!gp) { |
| dev_err(&acard->pci->dev, "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 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) { |
| dev_err(&pci->dev, "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_new(&pci->dev, 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_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) { |
| dev_err(&pci->dev, "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) { |
| dev_err(&pci->dev, "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 snd_card_als4000_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| static int snd_als4000_suspend(struct device *dev) |
| { |
| struct snd_card *card = dev_get_drvdata(dev); |
| 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); |
| return 0; |
| } |
| |
| static int snd_als4000_resume(struct device *dev) |
| { |
| struct snd_card *card = dev_get_drvdata(dev); |
| struct snd_card_als4000 *acard = card->private_data; |
| struct snd_sb *chip = acard->chip; |
| |
| 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; |
| } |
| |
| static SIMPLE_DEV_PM_OPS(snd_als4000_pm, snd_als4000_suspend, snd_als4000_resume); |
| #define SND_ALS4000_PM_OPS &snd_als4000_pm |
| #else |
| #define SND_ALS4000_PM_OPS NULL |
| #endif /* CONFIG_PM_SLEEP */ |
| |
| static struct pci_driver als4000_driver = { |
| .name = KBUILD_MODNAME, |
| .id_table = snd_als4000_ids, |
| .probe = snd_card_als4000_probe, |
| .remove = snd_card_als4000_remove, |
| .driver = { |
| .pm = SND_ALS4000_PM_OPS, |
| }, |
| }; |
| |
| module_pci_driver(als4000_driver); |