| /* |
| * |
| * hda_intel.c - Implementation of primary alsa driver code base for Intel HD Audio. |
| * |
| * Copyright(c) 2004 Intel Corporation. All rights reserved. |
| * |
| * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> |
| * PeiSen Hou <pshou@realtek.com.tw> |
| * |
| * 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. |
| * |
| * CONTACTS: |
| * |
| * Matt Jared matt.jared@intel.com |
| * Andy Kopp andy.kopp@intel.com |
| * Dan Kogan dan.d.kogan@intel.com |
| * |
| * CHANGES: |
| * |
| * 2004.12.01 Major rewrite by tiwai, merged the work of pshou |
| * |
| */ |
| |
| #include <sound/driver.h> |
| #include <asm/io.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/mutex.h> |
| #include <sound/core.h> |
| #include <sound/initval.h> |
| #include "hda_codec.h" |
| |
| |
| static int index = SNDRV_DEFAULT_IDX1; |
| static char *id = SNDRV_DEFAULT_STR1; |
| static char *model; |
| static int position_fix; |
| static int probe_mask = -1; |
| static int single_cmd; |
| |
| module_param(index, int, 0444); |
| MODULE_PARM_DESC(index, "Index value for Intel HD audio interface."); |
| module_param(id, charp, 0444); |
| MODULE_PARM_DESC(id, "ID string for Intel HD audio interface."); |
| module_param(model, charp, 0444); |
| MODULE_PARM_DESC(model, "Use the given board model."); |
| module_param(position_fix, int, 0444); |
| MODULE_PARM_DESC(position_fix, "Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)."); |
| module_param(probe_mask, int, 0444); |
| MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1)."); |
| module_param(single_cmd, bool, 0444); |
| MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs (for debugging only)."); |
| |
| |
| /* just for backward compatibility */ |
| static int enable; |
| module_param(enable, bool, 0444); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("{{Intel, ICH6}," |
| "{Intel, ICH6M}," |
| "{Intel, ICH7}," |
| "{Intel, ESB2}," |
| "{Intel, ICH8}," |
| "{ATI, SB450}," |
| "{ATI, SB600}," |
| "{ATI, RS600}," |
| "{VIA, VT8251}," |
| "{VIA, VT8237A}," |
| "{SiS, SIS966}," |
| "{ULI, M5461}}"); |
| MODULE_DESCRIPTION("Intel HDA driver"); |
| |
| #define SFX "hda-intel: " |
| |
| /* |
| * registers |
| */ |
| #define ICH6_REG_GCAP 0x00 |
| #define ICH6_REG_VMIN 0x02 |
| #define ICH6_REG_VMAJ 0x03 |
| #define ICH6_REG_OUTPAY 0x04 |
| #define ICH6_REG_INPAY 0x06 |
| #define ICH6_REG_GCTL 0x08 |
| #define ICH6_REG_WAKEEN 0x0c |
| #define ICH6_REG_STATESTS 0x0e |
| #define ICH6_REG_GSTS 0x10 |
| #define ICH6_REG_INTCTL 0x20 |
| #define ICH6_REG_INTSTS 0x24 |
| #define ICH6_REG_WALCLK 0x30 |
| #define ICH6_REG_SYNC 0x34 |
| #define ICH6_REG_CORBLBASE 0x40 |
| #define ICH6_REG_CORBUBASE 0x44 |
| #define ICH6_REG_CORBWP 0x48 |
| #define ICH6_REG_CORBRP 0x4A |
| #define ICH6_REG_CORBCTL 0x4c |
| #define ICH6_REG_CORBSTS 0x4d |
| #define ICH6_REG_CORBSIZE 0x4e |
| |
| #define ICH6_REG_RIRBLBASE 0x50 |
| #define ICH6_REG_RIRBUBASE 0x54 |
| #define ICH6_REG_RIRBWP 0x58 |
| #define ICH6_REG_RINTCNT 0x5a |
| #define ICH6_REG_RIRBCTL 0x5c |
| #define ICH6_REG_RIRBSTS 0x5d |
| #define ICH6_REG_RIRBSIZE 0x5e |
| |
| #define ICH6_REG_IC 0x60 |
| #define ICH6_REG_IR 0x64 |
| #define ICH6_REG_IRS 0x68 |
| #define ICH6_IRS_VALID (1<<1) |
| #define ICH6_IRS_BUSY (1<<0) |
| |
| #define ICH6_REG_DPLBASE 0x70 |
| #define ICH6_REG_DPUBASE 0x74 |
| #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */ |
| |
| /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */ |
| enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; |
| |
| /* stream register offsets from stream base */ |
| #define ICH6_REG_SD_CTL 0x00 |
| #define ICH6_REG_SD_STS 0x03 |
| #define ICH6_REG_SD_LPIB 0x04 |
| #define ICH6_REG_SD_CBL 0x08 |
| #define ICH6_REG_SD_LVI 0x0c |
| #define ICH6_REG_SD_FIFOW 0x0e |
| #define ICH6_REG_SD_FIFOSIZE 0x10 |
| #define ICH6_REG_SD_FORMAT 0x12 |
| #define ICH6_REG_SD_BDLPL 0x18 |
| #define ICH6_REG_SD_BDLPU 0x1c |
| |
| /* PCI space */ |
| #define ICH6_PCIREG_TCSEL 0x44 |
| |
| /* |
| * other constants |
| */ |
| |
| /* max number of SDs */ |
| /* ICH, ATI and VIA have 4 playback and 4 capture */ |
| #define ICH6_CAPTURE_INDEX 0 |
| #define ICH6_NUM_CAPTURE 4 |
| #define ICH6_PLAYBACK_INDEX 4 |
| #define ICH6_NUM_PLAYBACK 4 |
| |
| /* ULI has 6 playback and 5 capture */ |
| #define ULI_CAPTURE_INDEX 0 |
| #define ULI_NUM_CAPTURE 5 |
| #define ULI_PLAYBACK_INDEX 5 |
| #define ULI_NUM_PLAYBACK 6 |
| |
| /* ATI HDMI has 1 playback and 0 capture */ |
| #define ATIHDMI_CAPTURE_INDEX 0 |
| #define ATIHDMI_NUM_CAPTURE 0 |
| #define ATIHDMI_PLAYBACK_INDEX 0 |
| #define ATIHDMI_NUM_PLAYBACK 1 |
| |
| /* this number is statically defined for simplicity */ |
| #define MAX_AZX_DEV 16 |
| |
| /* max number of fragments - we may use more if allocating more pages for BDL */ |
| #define BDL_SIZE PAGE_ALIGN(8192) |
| #define AZX_MAX_FRAG (BDL_SIZE / (MAX_AZX_DEV * 16)) |
| /* max buffer size - no h/w limit, you can increase as you like */ |
| #define AZX_MAX_BUF_SIZE (1024*1024*1024) |
| /* max number of PCM devics per card */ |
| #define AZX_MAX_AUDIO_PCMS 6 |
| #define AZX_MAX_MODEM_PCMS 2 |
| #define AZX_MAX_PCMS (AZX_MAX_AUDIO_PCMS + AZX_MAX_MODEM_PCMS) |
| |
| /* RIRB int mask: overrun[2], response[0] */ |
| #define RIRB_INT_RESPONSE 0x01 |
| #define RIRB_INT_OVERRUN 0x04 |
| #define RIRB_INT_MASK 0x05 |
| |
| /* STATESTS int mask: SD2,SD1,SD0 */ |
| #define STATESTS_INT_MASK 0x07 |
| #define AZX_MAX_CODECS 4 |
| |
| /* SD_CTL bits */ |
| #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */ |
| #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */ |
| #define SD_CTL_STREAM_TAG_MASK (0xf << 20) |
| #define SD_CTL_STREAM_TAG_SHIFT 20 |
| |
| /* SD_CTL and SD_STS */ |
| #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */ |
| #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */ |
| #define SD_INT_COMPLETE 0x04 /* completion interrupt */ |
| #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|SD_INT_COMPLETE) |
| |
| /* SD_STS */ |
| #define SD_STS_FIFO_READY 0x20 /* FIFO ready */ |
| |
| /* INTCTL and INTSTS */ |
| #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */ |
| #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */ |
| #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */ |
| |
| /* GCTL unsolicited response enable bit */ |
| #define ICH6_GCTL_UREN (1<<8) |
| |
| /* GCTL reset bit */ |
| #define ICH6_GCTL_RESET (1<<0) |
| |
| /* CORB/RIRB control, read/write pointer */ |
| #define ICH6_RBCTL_DMA_EN 0x02 /* enable DMA */ |
| #define ICH6_RBCTL_IRQ_EN 0x01 /* enable IRQ */ |
| #define ICH6_RBRWP_CLR 0x8000 /* read/write pointer clear */ |
| /* below are so far hardcoded - should read registers in future */ |
| #define ICH6_MAX_CORB_ENTRIES 256 |
| #define ICH6_MAX_RIRB_ENTRIES 256 |
| |
| /* position fix mode */ |
| enum { |
| POS_FIX_AUTO, |
| POS_FIX_NONE, |
| POS_FIX_POSBUF, |
| POS_FIX_FIFO, |
| }; |
| |
| /* Defines for ATI HD Audio support in SB450 south bridge */ |
| #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42 |
| #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02 |
| |
| /* Defines for Nvidia HDA support */ |
| #define NVIDIA_HDA_TRANSREG_ADDR 0x4e |
| #define NVIDIA_HDA_ENABLE_COHBITS 0x0f |
| |
| /* |
| */ |
| |
| struct azx_dev { |
| u32 *bdl; /* virtual address of the BDL */ |
| dma_addr_t bdl_addr; /* physical address of the BDL */ |
| volatile u32 *posbuf; /* position buffer pointer */ |
| |
| unsigned int bufsize; /* size of the play buffer in bytes */ |
| unsigned int fragsize; /* size of each period in bytes */ |
| unsigned int frags; /* number for period in the play buffer */ |
| unsigned int fifo_size; /* FIFO size */ |
| |
| void __iomem *sd_addr; /* stream descriptor pointer */ |
| |
| u32 sd_int_sta_mask; /* stream int status mask */ |
| |
| /* pcm support */ |
| struct snd_pcm_substream *substream; /* assigned substream, set in PCM open */ |
| unsigned int format_val; /* format value to be set in the controller and the codec */ |
| unsigned char stream_tag; /* assigned stream */ |
| unsigned char index; /* stream index */ |
| /* for sanity check of position buffer */ |
| unsigned int period_intr; |
| |
| unsigned int opened: 1; |
| unsigned int running: 1; |
| }; |
| |
| /* CORB/RIRB */ |
| struct azx_rb { |
| u32 *buf; /* CORB/RIRB buffer |
| * Each CORB entry is 4byte, RIRB is 8byte |
| */ |
| dma_addr_t addr; /* physical address of CORB/RIRB buffer */ |
| /* for RIRB */ |
| unsigned short rp, wp; /* read/write pointers */ |
| int cmds; /* number of pending requests */ |
| u32 res; /* last read value */ |
| }; |
| |
| struct azx { |
| struct snd_card *card; |
| struct pci_dev *pci; |
| |
| /* chip type specific */ |
| int driver_type; |
| int playback_streams; |
| int playback_index_offset; |
| int capture_streams; |
| int capture_index_offset; |
| int num_streams; |
| |
| /* pci resources */ |
| unsigned long addr; |
| void __iomem *remap_addr; |
| int irq; |
| |
| /* locks */ |
| spinlock_t reg_lock; |
| struct mutex open_mutex; |
| |
| /* streams (x num_streams) */ |
| struct azx_dev *azx_dev; |
| |
| /* PCM */ |
| unsigned int pcm_devs; |
| struct snd_pcm *pcm[AZX_MAX_PCMS]; |
| |
| /* HD codec */ |
| unsigned short codec_mask; |
| struct hda_bus *bus; |
| |
| /* CORB/RIRB */ |
| struct azx_rb corb; |
| struct azx_rb rirb; |
| |
| /* BDL, CORB/RIRB and position buffers */ |
| struct snd_dma_buffer bdl; |
| struct snd_dma_buffer rb; |
| struct snd_dma_buffer posbuf; |
| |
| /* flags */ |
| int position_fix; |
| unsigned int initialized: 1; |
| unsigned int single_cmd: 1; |
| }; |
| |
| /* driver types */ |
| enum { |
| AZX_DRIVER_ICH, |
| AZX_DRIVER_ATI, |
| AZX_DRIVER_ATIHDMI, |
| AZX_DRIVER_VIA, |
| AZX_DRIVER_SIS, |
| AZX_DRIVER_ULI, |
| AZX_DRIVER_NVIDIA, |
| }; |
| |
| static char *driver_short_names[] __devinitdata = { |
| [AZX_DRIVER_ICH] = "HDA Intel", |
| [AZX_DRIVER_ATI] = "HDA ATI SB", |
| [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI", |
| [AZX_DRIVER_VIA] = "HDA VIA VT82xx", |
| [AZX_DRIVER_SIS] = "HDA SIS966", |
| [AZX_DRIVER_ULI] = "HDA ULI M5461", |
| [AZX_DRIVER_NVIDIA] = "HDA NVidia", |
| }; |
| |
| /* |
| * macros for easy use |
| */ |
| #define azx_writel(chip,reg,value) \ |
| writel(value, (chip)->remap_addr + ICH6_REG_##reg) |
| #define azx_readl(chip,reg) \ |
| readl((chip)->remap_addr + ICH6_REG_##reg) |
| #define azx_writew(chip,reg,value) \ |
| writew(value, (chip)->remap_addr + ICH6_REG_##reg) |
| #define azx_readw(chip,reg) \ |
| readw((chip)->remap_addr + ICH6_REG_##reg) |
| #define azx_writeb(chip,reg,value) \ |
| writeb(value, (chip)->remap_addr + ICH6_REG_##reg) |
| #define azx_readb(chip,reg) \ |
| readb((chip)->remap_addr + ICH6_REG_##reg) |
| |
| #define azx_sd_writel(dev,reg,value) \ |
| writel(value, (dev)->sd_addr + ICH6_REG_##reg) |
| #define azx_sd_readl(dev,reg) \ |
| readl((dev)->sd_addr + ICH6_REG_##reg) |
| #define azx_sd_writew(dev,reg,value) \ |
| writew(value, (dev)->sd_addr + ICH6_REG_##reg) |
| #define azx_sd_readw(dev,reg) \ |
| readw((dev)->sd_addr + ICH6_REG_##reg) |
| #define azx_sd_writeb(dev,reg,value) \ |
| writeb(value, (dev)->sd_addr + ICH6_REG_##reg) |
| #define azx_sd_readb(dev,reg) \ |
| readb((dev)->sd_addr + ICH6_REG_##reg) |
| |
| /* for pcm support */ |
| #define get_azx_dev(substream) (substream->runtime->private_data) |
| |
| /* Get the upper 32bit of the given dma_addr_t |
| * Compiler should optimize and eliminate the code if dma_addr_t is 32bit |
| */ |
| #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0) |
| |
| |
| /* |
| * Interface for HD codec |
| */ |
| |
| /* |
| * CORB / RIRB interface |
| */ |
| static int azx_alloc_cmd_io(struct azx *chip) |
| { |
| int err; |
| |
| /* single page (at least 4096 bytes) must suffice for both ringbuffes */ |
| err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| PAGE_SIZE, &chip->rb); |
| if (err < 0) { |
| snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n"); |
| return err; |
| } |
| return 0; |
| } |
| |
| static void azx_init_cmd_io(struct azx *chip) |
| { |
| /* CORB set up */ |
| chip->corb.addr = chip->rb.addr; |
| chip->corb.buf = (u32 *)chip->rb.area; |
| azx_writel(chip, CORBLBASE, (u32)chip->corb.addr); |
| azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr)); |
| |
| /* set the corb size to 256 entries (ULI requires explicitly) */ |
| azx_writeb(chip, CORBSIZE, 0x02); |
| /* set the corb write pointer to 0 */ |
| azx_writew(chip, CORBWP, 0); |
| /* reset the corb hw read pointer */ |
| azx_writew(chip, CORBRP, ICH6_RBRWP_CLR); |
| /* enable corb dma */ |
| azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN); |
| |
| /* RIRB set up */ |
| chip->rirb.addr = chip->rb.addr + 2048; |
| chip->rirb.buf = (u32 *)(chip->rb.area + 2048); |
| azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr); |
| azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr)); |
| |
| /* set the rirb size to 256 entries (ULI requires explicitly) */ |
| azx_writeb(chip, RIRBSIZE, 0x02); |
| /* reset the rirb hw write pointer */ |
| azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR); |
| /* set N=1, get RIRB response interrupt for new entry */ |
| azx_writew(chip, RINTCNT, 1); |
| /* enable rirb dma and response irq */ |
| azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN); |
| chip->rirb.rp = chip->rirb.cmds = 0; |
| } |
| |
| static void azx_free_cmd_io(struct azx *chip) |
| { |
| /* disable ringbuffer DMAs */ |
| azx_writeb(chip, RIRBCTL, 0); |
| azx_writeb(chip, CORBCTL, 0); |
| } |
| |
| /* send a command */ |
| static int azx_corb_send_cmd(struct hda_codec *codec, hda_nid_t nid, int direct, |
| unsigned int verb, unsigned int para) |
| { |
| struct azx *chip = codec->bus->private_data; |
| unsigned int wp; |
| u32 val; |
| |
| val = (u32)(codec->addr & 0x0f) << 28; |
| val |= (u32)direct << 27; |
| val |= (u32)nid << 20; |
| val |= verb << 8; |
| val |= para; |
| |
| /* add command to corb */ |
| wp = azx_readb(chip, CORBWP); |
| wp++; |
| wp %= ICH6_MAX_CORB_ENTRIES; |
| |
| spin_lock_irq(&chip->reg_lock); |
| chip->rirb.cmds++; |
| chip->corb.buf[wp] = cpu_to_le32(val); |
| azx_writel(chip, CORBWP, wp); |
| spin_unlock_irq(&chip->reg_lock); |
| |
| return 0; |
| } |
| |
| #define ICH6_RIRB_EX_UNSOL_EV (1<<4) |
| |
| /* retrieve RIRB entry - called from interrupt handler */ |
| static void azx_update_rirb(struct azx *chip) |
| { |
| unsigned int rp, wp; |
| u32 res, res_ex; |
| |
| wp = azx_readb(chip, RIRBWP); |
| if (wp == chip->rirb.wp) |
| return; |
| chip->rirb.wp = wp; |
| |
| while (chip->rirb.rp != wp) { |
| chip->rirb.rp++; |
| chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES; |
| |
| rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */ |
| res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]); |
| res = le32_to_cpu(chip->rirb.buf[rp]); |
| if (res_ex & ICH6_RIRB_EX_UNSOL_EV) |
| snd_hda_queue_unsol_event(chip->bus, res, res_ex); |
| else if (chip->rirb.cmds) { |
| chip->rirb.cmds--; |
| chip->rirb.res = res; |
| } |
| } |
| } |
| |
| /* receive a response */ |
| static unsigned int azx_rirb_get_response(struct hda_codec *codec) |
| { |
| struct azx *chip = codec->bus->private_data; |
| int timeout = 50; |
| |
| while (chip->rirb.cmds) { |
| if (! --timeout) { |
| snd_printk(KERN_ERR |
| "hda_intel: azx_get_response timeout, " |
| "switching to single_cmd mode...\n"); |
| chip->rirb.rp = azx_readb(chip, RIRBWP); |
| chip->rirb.cmds = 0; |
| /* switch to single_cmd mode */ |
| chip->single_cmd = 1; |
| azx_free_cmd_io(chip); |
| return -1; |
| } |
| msleep(1); |
| } |
| return chip->rirb.res; /* the last value */ |
| } |
| |
| /* |
| * Use the single immediate command instead of CORB/RIRB for simplicity |
| * |
| * Note: according to Intel, this is not preferred use. The command was |
| * intended for the BIOS only, and may get confused with unsolicited |
| * responses. So, we shouldn't use it for normal operation from the |
| * driver. |
| * I left the codes, however, for debugging/testing purposes. |
| */ |
| |
| /* send a command */ |
| static int azx_single_send_cmd(struct hda_codec *codec, hda_nid_t nid, |
| int direct, unsigned int verb, |
| unsigned int para) |
| { |
| struct azx *chip = codec->bus->private_data; |
| u32 val; |
| int timeout = 50; |
| |
| val = (u32)(codec->addr & 0x0f) << 28; |
| val |= (u32)direct << 27; |
| val |= (u32)nid << 20; |
| val |= verb << 8; |
| val |= para; |
| |
| while (timeout--) { |
| /* check ICB busy bit */ |
| if (! (azx_readw(chip, IRS) & ICH6_IRS_BUSY)) { |
| /* Clear IRV valid bit */ |
| azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_VALID); |
| azx_writel(chip, IC, val); |
| azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_BUSY); |
| return 0; |
| } |
| udelay(1); |
| } |
| snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n", azx_readw(chip, IRS), val); |
| return -EIO; |
| } |
| |
| /* receive a response */ |
| static unsigned int azx_single_get_response(struct hda_codec *codec) |
| { |
| struct azx *chip = codec->bus->private_data; |
| int timeout = 50; |
| |
| while (timeout--) { |
| /* check IRV busy bit */ |
| if (azx_readw(chip, IRS) & ICH6_IRS_VALID) |
| return azx_readl(chip, IR); |
| udelay(1); |
| } |
| snd_printd(SFX "get_response timeout: IRS=0x%x\n", azx_readw(chip, IRS)); |
| return (unsigned int)-1; |
| } |
| |
| /* |
| * The below are the main callbacks from hda_codec. |
| * |
| * They are just the skeleton to call sub-callbacks according to the |
| * current setting of chip->single_cmd. |
| */ |
| |
| /* send a command */ |
| static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid, |
| int direct, unsigned int verb, |
| unsigned int para) |
| { |
| struct azx *chip = codec->bus->private_data; |
| if (chip->single_cmd) |
| return azx_single_send_cmd(codec, nid, direct, verb, para); |
| else |
| return azx_corb_send_cmd(codec, nid, direct, verb, para); |
| } |
| |
| /* get a response */ |
| static unsigned int azx_get_response(struct hda_codec *codec) |
| { |
| struct azx *chip = codec->bus->private_data; |
| if (chip->single_cmd) |
| return azx_single_get_response(codec); |
| else |
| return azx_rirb_get_response(codec); |
| } |
| |
| |
| /* reset codec link */ |
| static int azx_reset(struct azx *chip) |
| { |
| int count; |
| |
| /* reset controller */ |
| azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET); |
| |
| count = 50; |
| while (azx_readb(chip, GCTL) && --count) |
| msleep(1); |
| |
| /* delay for >= 100us for codec PLL to settle per spec |
| * Rev 0.9 section 5.5.1 |
| */ |
| msleep(1); |
| |
| /* Bring controller out of reset */ |
| azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET); |
| |
| count = 50; |
| while (! azx_readb(chip, GCTL) && --count) |
| msleep(1); |
| |
| /* Brent Chartrand said to wait >= 540us for codecs to intialize */ |
| msleep(1); |
| |
| /* check to see if controller is ready */ |
| if (! azx_readb(chip, GCTL)) { |
| snd_printd("azx_reset: controller not ready!\n"); |
| return -EBUSY; |
| } |
| |
| /* Accept unsolicited responses */ |
| azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN); |
| |
| /* detect codecs */ |
| if (! chip->codec_mask) { |
| chip->codec_mask = azx_readw(chip, STATESTS); |
| snd_printdd("codec_mask = 0x%x\n", chip->codec_mask); |
| } |
| |
| return 0; |
| } |
| |
| |
| /* |
| * Lowlevel interface |
| */ |
| |
| /* enable interrupts */ |
| static void azx_int_enable(struct azx *chip) |
| { |
| /* enable controller CIE and GIE */ |
| azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) | |
| ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN); |
| } |
| |
| /* disable interrupts */ |
| static void azx_int_disable(struct azx *chip) |
| { |
| int i; |
| |
| /* disable interrupts in stream descriptor */ |
| for (i = 0; i < chip->num_streams; i++) { |
| struct azx_dev *azx_dev = &chip->azx_dev[i]; |
| azx_sd_writeb(azx_dev, SD_CTL, |
| azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK); |
| } |
| |
| /* disable SIE for all streams */ |
| azx_writeb(chip, INTCTL, 0); |
| |
| /* disable controller CIE and GIE */ |
| azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) & |
| ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN)); |
| } |
| |
| /* clear interrupts */ |
| static void azx_int_clear(struct azx *chip) |
| { |
| int i; |
| |
| /* clear stream status */ |
| for (i = 0; i < chip->num_streams; i++) { |
| struct azx_dev *azx_dev = &chip->azx_dev[i]; |
| azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); |
| } |
| |
| /* clear STATESTS */ |
| azx_writeb(chip, STATESTS, STATESTS_INT_MASK); |
| |
| /* clear rirb status */ |
| azx_writeb(chip, RIRBSTS, RIRB_INT_MASK); |
| |
| /* clear int status */ |
| azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM); |
| } |
| |
| /* start a stream */ |
| static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev) |
| { |
| /* enable SIE */ |
| azx_writeb(chip, INTCTL, |
| azx_readb(chip, INTCTL) | (1 << azx_dev->index)); |
| /* set DMA start and interrupt mask */ |
| azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) | |
| SD_CTL_DMA_START | SD_INT_MASK); |
| } |
| |
| /* stop a stream */ |
| static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev) |
| { |
| /* stop DMA */ |
| azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) & |
| ~(SD_CTL_DMA_START | SD_INT_MASK)); |
| azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */ |
| /* disable SIE */ |
| azx_writeb(chip, INTCTL, |
| azx_readb(chip, INTCTL) & ~(1 << azx_dev->index)); |
| } |
| |
| |
| /* |
| * initialize the chip |
| */ |
| static void azx_init_chip(struct azx *chip) |
| { |
| unsigned char reg; |
| |
| /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44) |
| * TCSEL == Traffic Class Select Register, which sets PCI express QOS |
| * Ensuring these bits are 0 clears playback static on some HD Audio codecs |
| */ |
| pci_read_config_byte (chip->pci, ICH6_PCIREG_TCSEL, ®); |
| pci_write_config_byte(chip->pci, ICH6_PCIREG_TCSEL, reg & 0xf8); |
| |
| /* reset controller */ |
| azx_reset(chip); |
| |
| /* initialize interrupts */ |
| azx_int_clear(chip); |
| azx_int_enable(chip); |
| |
| /* initialize the codec command I/O */ |
| if (! chip->single_cmd) |
| azx_init_cmd_io(chip); |
| |
| /* program the position buffer */ |
| azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr); |
| azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr)); |
| |
| switch (chip->driver_type) { |
| case AZX_DRIVER_ATI: |
| /* For ATI SB450 azalia HD audio, we need to enable snoop */ |
| pci_read_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, |
| ®); |
| pci_write_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, |
| (reg & 0xf8) | ATI_SB450_HDAUDIO_ENABLE_SNOOP); |
| break; |
| case AZX_DRIVER_NVIDIA: |
| /* For NVIDIA HDA, enable snoop */ |
| pci_read_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR, ®); |
| pci_write_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR, |
| (reg & 0xf0) | NVIDIA_HDA_ENABLE_COHBITS); |
| break; |
| } |
| } |
| |
| |
| /* |
| * interrupt handler |
| */ |
| static irqreturn_t azx_interrupt(int irq, void* dev_id, struct pt_regs *regs) |
| { |
| struct azx *chip = dev_id; |
| struct azx_dev *azx_dev; |
| u32 status; |
| int i; |
| |
| spin_lock(&chip->reg_lock); |
| |
| status = azx_readl(chip, INTSTS); |
| if (status == 0) { |
| spin_unlock(&chip->reg_lock); |
| return IRQ_NONE; |
| } |
| |
| for (i = 0; i < chip->num_streams; i++) { |
| azx_dev = &chip->azx_dev[i]; |
| if (status & azx_dev->sd_int_sta_mask) { |
| azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); |
| if (azx_dev->substream && azx_dev->running) { |
| azx_dev->period_intr++; |
| spin_unlock(&chip->reg_lock); |
| snd_pcm_period_elapsed(azx_dev->substream); |
| spin_lock(&chip->reg_lock); |
| } |
| } |
| } |
| |
| /* clear rirb int */ |
| status = azx_readb(chip, RIRBSTS); |
| if (status & RIRB_INT_MASK) { |
| if (! chip->single_cmd && (status & RIRB_INT_RESPONSE)) |
| azx_update_rirb(chip); |
| azx_writeb(chip, RIRBSTS, RIRB_INT_MASK); |
| } |
| |
| #if 0 |
| /* clear state status int */ |
| if (azx_readb(chip, STATESTS) & 0x04) |
| azx_writeb(chip, STATESTS, 0x04); |
| #endif |
| spin_unlock(&chip->reg_lock); |
| |
| return IRQ_HANDLED; |
| } |
| |
| |
| /* |
| * set up BDL entries |
| */ |
| static void azx_setup_periods(struct azx_dev *azx_dev) |
| { |
| u32 *bdl = azx_dev->bdl; |
| dma_addr_t dma_addr = azx_dev->substream->runtime->dma_addr; |
| int idx; |
| |
| /* reset BDL address */ |
| azx_sd_writel(azx_dev, SD_BDLPL, 0); |
| azx_sd_writel(azx_dev, SD_BDLPU, 0); |
| |
| /* program the initial BDL entries */ |
| for (idx = 0; idx < azx_dev->frags; idx++) { |
| unsigned int off = idx << 2; /* 4 dword step */ |
| dma_addr_t addr = dma_addr + idx * azx_dev->fragsize; |
| /* program the address field of the BDL entry */ |
| bdl[off] = cpu_to_le32((u32)addr); |
| bdl[off+1] = cpu_to_le32(upper_32bit(addr)); |
| |
| /* program the size field of the BDL entry */ |
| bdl[off+2] = cpu_to_le32(azx_dev->fragsize); |
| |
| /* program the IOC to enable interrupt when buffer completes */ |
| bdl[off+3] = cpu_to_le32(0x01); |
| } |
| } |
| |
| /* |
| * set up the SD for streaming |
| */ |
| static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev) |
| { |
| unsigned char val; |
| int timeout; |
| |
| /* make sure the run bit is zero for SD */ |
| azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) & ~SD_CTL_DMA_START); |
| /* reset stream */ |
| azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) | SD_CTL_STREAM_RESET); |
| udelay(3); |
| timeout = 300; |
| while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) && |
| --timeout) |
| ; |
| val &= ~SD_CTL_STREAM_RESET; |
| azx_sd_writeb(azx_dev, SD_CTL, val); |
| udelay(3); |
| |
| timeout = 300; |
| /* waiting for hardware to report that the stream is out of reset */ |
| while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) && |
| --timeout) |
| ; |
| |
| /* program the stream_tag */ |
| azx_sd_writel(azx_dev, SD_CTL, |
| (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK) | |
| (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT)); |
| |
| /* program the length of samples in cyclic buffer */ |
| azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize); |
| |
| /* program the stream format */ |
| /* this value needs to be the same as the one programmed */ |
| azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val); |
| |
| /* program the stream LVI (last valid index) of the BDL */ |
| azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1); |
| |
| /* program the BDL address */ |
| /* lower BDL address */ |
| azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl_addr); |
| /* upper BDL address */ |
| azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr)); |
| |
| /* enable the position buffer */ |
| if (! (azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE)) |
| azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE); |
| |
| /* set the interrupt enable bits in the descriptor control register */ |
| azx_sd_writel(azx_dev, SD_CTL, azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK); |
| |
| return 0; |
| } |
| |
| |
| /* |
| * Codec initialization |
| */ |
| |
| static int __devinit azx_codec_create(struct azx *chip, const char *model) |
| { |
| struct hda_bus_template bus_temp; |
| int c, codecs, err; |
| |
| memset(&bus_temp, 0, sizeof(bus_temp)); |
| bus_temp.private_data = chip; |
| bus_temp.modelname = model; |
| bus_temp.pci = chip->pci; |
| bus_temp.ops.command = azx_send_cmd; |
| bus_temp.ops.get_response = azx_get_response; |
| |
| if ((err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus)) < 0) |
| return err; |
| |
| codecs = 0; |
| for (c = 0; c < AZX_MAX_CODECS; c++) { |
| if ((chip->codec_mask & (1 << c)) & probe_mask) { |
| err = snd_hda_codec_new(chip->bus, c, NULL); |
| if (err < 0) |
| continue; |
| codecs++; |
| } |
| } |
| if (! codecs) { |
| snd_printk(KERN_ERR SFX "no codecs initialized\n"); |
| return -ENXIO; |
| } |
| |
| return 0; |
| } |
| |
| |
| /* |
| * PCM support |
| */ |
| |
| /* assign a stream for the PCM */ |
| static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream) |
| { |
| int dev, i, nums; |
| if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| dev = chip->playback_index_offset; |
| nums = chip->playback_streams; |
| } else { |
| dev = chip->capture_index_offset; |
| nums = chip->capture_streams; |
| } |
| for (i = 0; i < nums; i++, dev++) |
| if (! chip->azx_dev[dev].opened) { |
| chip->azx_dev[dev].opened = 1; |
| return &chip->azx_dev[dev]; |
| } |
| return NULL; |
| } |
| |
| /* release the assigned stream */ |
| static inline void azx_release_device(struct azx_dev *azx_dev) |
| { |
| azx_dev->opened = 0; |
| } |
| |
| static struct snd_pcm_hardware azx_pcm_hw = { |
| .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_PAUSE /*|*/ |
| /*SNDRV_PCM_INFO_RESUME*/), |
| .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| .rates = SNDRV_PCM_RATE_48000, |
| .rate_min = 48000, |
| .rate_max = 48000, |
| .channels_min = 2, |
| .channels_max = 2, |
| .buffer_bytes_max = AZX_MAX_BUF_SIZE, |
| .period_bytes_min = 128, |
| .period_bytes_max = AZX_MAX_BUF_SIZE / 2, |
| .periods_min = 2, |
| .periods_max = AZX_MAX_FRAG, |
| .fifo_size = 0, |
| }; |
| |
| struct azx_pcm { |
| struct azx *chip; |
| struct hda_codec *codec; |
| struct hda_pcm_stream *hinfo[2]; |
| }; |
| |
| static int azx_pcm_open(struct snd_pcm_substream *substream) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream]; |
| struct azx *chip = apcm->chip; |
| struct azx_dev *azx_dev; |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| unsigned long flags; |
| int err; |
| |
| mutex_lock(&chip->open_mutex); |
| azx_dev = azx_assign_device(chip, substream->stream); |
| if (azx_dev == NULL) { |
| mutex_unlock(&chip->open_mutex); |
| return -EBUSY; |
| } |
| runtime->hw = azx_pcm_hw; |
| runtime->hw.channels_min = hinfo->channels_min; |
| runtime->hw.channels_max = hinfo->channels_max; |
| runtime->hw.formats = hinfo->formats; |
| runtime->hw.rates = hinfo->rates; |
| snd_pcm_limit_hw_rates(runtime); |
| snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
| if ((err = hinfo->ops.open(hinfo, apcm->codec, substream)) < 0) { |
| azx_release_device(azx_dev); |
| mutex_unlock(&chip->open_mutex); |
| return err; |
| } |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| azx_dev->substream = substream; |
| azx_dev->running = 0; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| runtime->private_data = azx_dev; |
| mutex_unlock(&chip->open_mutex); |
| return 0; |
| } |
| |
| static int azx_pcm_close(struct snd_pcm_substream *substream) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream]; |
| struct azx *chip = apcm->chip; |
| struct azx_dev *azx_dev = get_azx_dev(substream); |
| unsigned long flags; |
| |
| mutex_lock(&chip->open_mutex); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| azx_dev->substream = NULL; |
| azx_dev->running = 0; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| azx_release_device(azx_dev); |
| hinfo->ops.close(hinfo, apcm->codec, substream); |
| mutex_unlock(&chip->open_mutex); |
| return 0; |
| } |
| |
| static int azx_pcm_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 azx_pcm_hw_free(struct snd_pcm_substream *substream) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct azx_dev *azx_dev = get_azx_dev(substream); |
| struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream]; |
| |
| /* reset BDL address */ |
| azx_sd_writel(azx_dev, SD_BDLPL, 0); |
| azx_sd_writel(azx_dev, SD_BDLPU, 0); |
| azx_sd_writel(azx_dev, SD_CTL, 0); |
| |
| hinfo->ops.cleanup(hinfo, apcm->codec, substream); |
| |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| static int azx_pcm_prepare(struct snd_pcm_substream *substream) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct azx *chip = apcm->chip; |
| struct azx_dev *azx_dev = get_azx_dev(substream); |
| struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream]; |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| |
| azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream); |
| azx_dev->fragsize = snd_pcm_lib_period_bytes(substream); |
| azx_dev->frags = azx_dev->bufsize / azx_dev->fragsize; |
| azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate, |
| runtime->channels, |
| runtime->format, |
| hinfo->maxbps); |
| if (! azx_dev->format_val) { |
| snd_printk(KERN_ERR SFX "invalid format_val, rate=%d, ch=%d, format=%d\n", |
| runtime->rate, runtime->channels, runtime->format); |
| return -EINVAL; |
| } |
| |
| snd_printdd("azx_pcm_prepare: bufsize=0x%x, fragsize=0x%x, format=0x%x\n", |
| azx_dev->bufsize, azx_dev->fragsize, azx_dev->format_val); |
| azx_setup_periods(azx_dev); |
| azx_setup_controller(chip, azx_dev); |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1; |
| else |
| azx_dev->fifo_size = 0; |
| |
| return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag, |
| azx_dev->format_val, substream); |
| } |
| |
| static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct azx_dev *azx_dev = get_azx_dev(substream); |
| struct azx *chip = apcm->chip; |
| int err = 0; |
| |
| spin_lock(&chip->reg_lock); |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| case SNDRV_PCM_TRIGGER_RESUME: |
| case SNDRV_PCM_TRIGGER_START: |
| azx_stream_start(chip, azx_dev); |
| azx_dev->running = 1; |
| break; |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| case SNDRV_PCM_TRIGGER_STOP: |
| azx_stream_stop(chip, azx_dev); |
| azx_dev->running = 0; |
| break; |
| default: |
| err = -EINVAL; |
| } |
| spin_unlock(&chip->reg_lock); |
| if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH || |
| cmd == SNDRV_PCM_TRIGGER_SUSPEND || |
| cmd == SNDRV_PCM_TRIGGER_STOP) { |
| int timeout = 5000; |
| while (azx_sd_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START && --timeout) |
| ; |
| } |
| return err; |
| } |
| |
| static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream) |
| { |
| struct azx_pcm *apcm = snd_pcm_substream_chip(substream); |
| struct azx *chip = apcm->chip; |
| struct azx_dev *azx_dev = get_azx_dev(substream); |
| unsigned int pos; |
| |
| if (chip->position_fix == POS_FIX_POSBUF || |
| chip->position_fix == POS_FIX_AUTO) { |
| /* use the position buffer */ |
| pos = *azx_dev->posbuf; |
| if (chip->position_fix == POS_FIX_AUTO && |
| azx_dev->period_intr == 1 && ! pos) { |
| printk(KERN_WARNING |
| "hda-intel: Invalid position buffer, " |
| "using LPIB read method instead.\n"); |
| chip->position_fix = POS_FIX_NONE; |
| goto read_lpib; |
| } |
| } else { |
| read_lpib: |
| /* read LPIB */ |
| pos = azx_sd_readl(azx_dev, SD_LPIB); |
| if (chip->position_fix == POS_FIX_FIFO) |
| pos += azx_dev->fifo_size; |
| } |
| if (pos >= azx_dev->bufsize) |
| pos = 0; |
| return bytes_to_frames(substream->runtime, pos); |
| } |
| |
| static struct snd_pcm_ops azx_pcm_ops = { |
| .open = azx_pcm_open, |
| .close = azx_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = azx_pcm_hw_params, |
| .hw_free = azx_pcm_hw_free, |
| .prepare = azx_pcm_prepare, |
| .trigger = azx_pcm_trigger, |
| .pointer = azx_pcm_pointer, |
| }; |
| |
| static void azx_pcm_free(struct snd_pcm *pcm) |
| { |
| kfree(pcm->private_data); |
| } |
| |
| static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec, |
| struct hda_pcm *cpcm, int pcm_dev) |
| { |
| int err; |
| struct snd_pcm *pcm; |
| struct azx_pcm *apcm; |
| |
| snd_assert(cpcm->stream[0].substreams || cpcm->stream[1].substreams, return -EINVAL); |
| snd_assert(cpcm->name, return -EINVAL); |
| |
| err = snd_pcm_new(chip->card, cpcm->name, pcm_dev, |
| cpcm->stream[0].substreams, cpcm->stream[1].substreams, |
| &pcm); |
| if (err < 0) |
| return err; |
| strcpy(pcm->name, cpcm->name); |
| apcm = kmalloc(sizeof(*apcm), GFP_KERNEL); |
| if (apcm == NULL) |
| return -ENOMEM; |
| apcm->chip = chip; |
| apcm->codec = codec; |
| apcm->hinfo[0] = &cpcm->stream[0]; |
| apcm->hinfo[1] = &cpcm->stream[1]; |
| pcm->private_data = apcm; |
| pcm->private_free = azx_pcm_free; |
| if (cpcm->stream[0].substreams) |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops); |
| if (cpcm->stream[1].substreams) |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops); |
| snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
| snd_dma_pci_data(chip->pci), |
| 1024 * 64, 1024 * 128); |
| chip->pcm[pcm_dev] = pcm; |
| chip->pcm_devs = pcm_dev + 1; |
| |
| return 0; |
| } |
| |
| static int __devinit azx_pcm_create(struct azx *chip) |
| { |
| struct list_head *p; |
| struct hda_codec *codec; |
| int c, err; |
| int pcm_dev; |
| |
| if ((err = snd_hda_build_pcms(chip->bus)) < 0) |
| return err; |
| |
| /* create audio PCMs */ |
| pcm_dev = 0; |
| list_for_each(p, &chip->bus->codec_list) { |
| codec = list_entry(p, struct hda_codec, list); |
| for (c = 0; c < codec->num_pcms; c++) { |
| if (codec->pcm_info[c].is_modem) |
| continue; /* create later */ |
| if (pcm_dev >= AZX_MAX_AUDIO_PCMS) { |
| snd_printk(KERN_ERR SFX "Too many audio PCMs\n"); |
| return -EINVAL; |
| } |
| err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev); |
| if (err < 0) |
| return err; |
| pcm_dev++; |
| } |
| } |
| |
| /* create modem PCMs */ |
| pcm_dev = AZX_MAX_AUDIO_PCMS; |
| list_for_each(p, &chip->bus->codec_list) { |
| codec = list_entry(p, struct hda_codec, list); |
| for (c = 0; c < codec->num_pcms; c++) { |
| if (! codec->pcm_info[c].is_modem) |
| continue; /* already created */ |
| if (pcm_dev >= AZX_MAX_PCMS) { |
| snd_printk(KERN_ERR SFX "Too many modem PCMs\n"); |
| return -EINVAL; |
| } |
| err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev); |
| if (err < 0) |
| return err; |
| chip->pcm[pcm_dev]->dev_class = SNDRV_PCM_CLASS_MODEM; |
| pcm_dev++; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * mixer creation - all stuff is implemented in hda module |
| */ |
| static int __devinit azx_mixer_create(struct azx *chip) |
| { |
| return snd_hda_build_controls(chip->bus); |
| } |
| |
| |
| /* |
| * initialize SD streams |
| */ |
| static int __devinit azx_init_stream(struct azx *chip) |
| { |
| int i; |
| |
| /* initialize each stream (aka device) |
| * assign the starting bdl address to each stream (device) and initialize |
| */ |
| for (i = 0; i < chip->num_streams; i++) { |
| unsigned int off = sizeof(u32) * (i * AZX_MAX_FRAG * 4); |
| struct azx_dev *azx_dev = &chip->azx_dev[i]; |
| azx_dev->bdl = (u32 *)(chip->bdl.area + off); |
| azx_dev->bdl_addr = chip->bdl.addr + off; |
| azx_dev->posbuf = (volatile u32 *)(chip->posbuf.area + i * 8); |
| /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */ |
| azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80); |
| /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */ |
| azx_dev->sd_int_sta_mask = 1 << i; |
| /* stream tag: must be non-zero and unique */ |
| azx_dev->index = i; |
| azx_dev->stream_tag = i + 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| #ifdef CONFIG_PM |
| /* |
| * power management |
| */ |
| static int azx_suspend(struct pci_dev *pci, pm_message_t state) |
| { |
| struct snd_card *card = pci_get_drvdata(pci); |
| struct azx *chip = card->private_data; |
| int i; |
| |
| snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
| for (i = 0; i < chip->pcm_devs; i++) |
| snd_pcm_suspend_all(chip->pcm[i]); |
| snd_hda_suspend(chip->bus, state); |
| azx_free_cmd_io(chip); |
| pci_disable_device(pci); |
| pci_save_state(pci); |
| return 0; |
| } |
| |
| static int azx_resume(struct pci_dev *pci) |
| { |
| struct snd_card *card = pci_get_drvdata(pci); |
| struct azx *chip = card->private_data; |
| |
| pci_restore_state(pci); |
| pci_enable_device(pci); |
| pci_set_master(pci); |
| azx_init_chip(chip); |
| snd_hda_resume(chip->bus); |
| snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
| return 0; |
| } |
| #endif /* CONFIG_PM */ |
| |
| |
| /* |
| * destructor |
| */ |
| static int azx_free(struct azx *chip) |
| { |
| if (chip->initialized) { |
| int i; |
| |
| for (i = 0; i < chip->num_streams; i++) |
| azx_stream_stop(chip, &chip->azx_dev[i]); |
| |
| /* disable interrupts */ |
| azx_int_disable(chip); |
| azx_int_clear(chip); |
| |
| /* disable CORB/RIRB */ |
| azx_free_cmd_io(chip); |
| |
| /* disable position buffer */ |
| azx_writel(chip, DPLBASE, 0); |
| azx_writel(chip, DPUBASE, 0); |
| |
| /* wait a little for interrupts to finish */ |
| msleep(1); |
| } |
| |
| if (chip->remap_addr) |
| iounmap(chip->remap_addr); |
| if (chip->irq >= 0) |
| free_irq(chip->irq, (void*)chip); |
| |
| if (chip->bdl.area) |
| snd_dma_free_pages(&chip->bdl); |
| if (chip->rb.area) |
| snd_dma_free_pages(&chip->rb); |
| if (chip->posbuf.area) |
| snd_dma_free_pages(&chip->posbuf); |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| kfree(chip->azx_dev); |
| kfree(chip); |
| |
| return 0; |
| } |
| |
| static int azx_dev_free(struct snd_device *device) |
| { |
| return azx_free(device->device_data); |
| } |
| |
| /* |
| * constructor |
| */ |
| static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, |
| int driver_type, |
| struct azx **rchip) |
| { |
| struct azx *chip; |
| int err = 0; |
| static struct snd_device_ops ops = { |
| .dev_free = azx_dev_free, |
| }; |
| |
| *rchip = NULL; |
| |
| if ((err = pci_enable_device(pci)) < 0) |
| return err; |
| |
| chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
| |
| if (NULL == chip) { |
| snd_printk(KERN_ERR SFX "cannot allocate chip\n"); |
| pci_disable_device(pci); |
| return -ENOMEM; |
| } |
| |
| spin_lock_init(&chip->reg_lock); |
| mutex_init(&chip->open_mutex); |
| chip->card = card; |
| chip->pci = pci; |
| chip->irq = -1; |
| chip->driver_type = driver_type; |
| |
| chip->position_fix = position_fix; |
| chip->single_cmd = single_cmd; |
| |
| #if BITS_PER_LONG != 64 |
| /* Fix up base address on ULI M5461 */ |
| if (chip->driver_type == AZX_DRIVER_ULI) { |
| u16 tmp3; |
| pci_read_config_word(pci, 0x40, &tmp3); |
| pci_write_config_word(pci, 0x40, tmp3 | 0x10); |
| pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0); |
| } |
| #endif |
| |
| if ((err = pci_request_regions(pci, "ICH HD audio")) < 0) { |
| kfree(chip); |
| pci_disable_device(pci); |
| return err; |
| } |
| |
| chip->addr = pci_resource_start(pci,0); |
| chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0)); |
| if (chip->remap_addr == NULL) { |
| snd_printk(KERN_ERR SFX "ioremap error\n"); |
| err = -ENXIO; |
| goto errout; |
| } |
| |
| if (request_irq(pci->irq, azx_interrupt, SA_INTERRUPT|SA_SHIRQ, |
| "HDA Intel", (void*)chip)) { |
| snd_printk(KERN_ERR SFX "unable to grab IRQ %d\n", pci->irq); |
| err = -EBUSY; |
| goto errout; |
| } |
| chip->irq = pci->irq; |
| |
| pci_set_master(pci); |
| synchronize_irq(chip->irq); |
| |
| switch (chip->driver_type) { |
| case AZX_DRIVER_ULI: |
| chip->playback_streams = ULI_NUM_PLAYBACK; |
| chip->capture_streams = ULI_NUM_CAPTURE; |
| chip->playback_index_offset = ULI_PLAYBACK_INDEX; |
| chip->capture_index_offset = ULI_CAPTURE_INDEX; |
| break; |
| case AZX_DRIVER_ATIHDMI: |
| chip->playback_streams = ATIHDMI_NUM_PLAYBACK; |
| chip->capture_streams = ATIHDMI_NUM_CAPTURE; |
| chip->playback_index_offset = ATIHDMI_PLAYBACK_INDEX; |
| chip->capture_index_offset = ATIHDMI_CAPTURE_INDEX; |
| break; |
| default: |
| chip->playback_streams = ICH6_NUM_PLAYBACK; |
| chip->capture_streams = ICH6_NUM_CAPTURE; |
| chip->playback_index_offset = ICH6_PLAYBACK_INDEX; |
| chip->capture_index_offset = ICH6_CAPTURE_INDEX; |
| break; |
| } |
| chip->num_streams = chip->playback_streams + chip->capture_streams; |
| chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev), GFP_KERNEL); |
| if (! chip->azx_dev) { |
| snd_printk(KERN_ERR "cannot malloc azx_dev\n"); |
| goto errout; |
| } |
| |
| /* allocate memory for the BDL for each stream */ |
| if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| BDL_SIZE, &chip->bdl)) < 0) { |
| snd_printk(KERN_ERR SFX "cannot allocate BDL\n"); |
| goto errout; |
| } |
| /* allocate memory for the position buffer */ |
| if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| chip->num_streams * 8, &chip->posbuf)) < 0) { |
| snd_printk(KERN_ERR SFX "cannot allocate posbuf\n"); |
| goto errout; |
| } |
| /* allocate CORB/RIRB */ |
| if (! chip->single_cmd) |
| if ((err = azx_alloc_cmd_io(chip)) < 0) |
| goto errout; |
| |
| /* initialize streams */ |
| azx_init_stream(chip); |
| |
| /* initialize chip */ |
| azx_init_chip(chip); |
| |
| chip->initialized = 1; |
| |
| /* codec detection */ |
| if (! chip->codec_mask) { |
| snd_printk(KERN_ERR SFX "no codecs found!\n"); |
| err = -ENODEV; |
| goto errout; |
| } |
| |
| if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) <0) { |
| snd_printk(KERN_ERR SFX "Error creating device [card]!\n"); |
| goto errout; |
| } |
| |
| strcpy(card->driver, "HDA-Intel"); |
| strcpy(card->shortname, driver_short_names[chip->driver_type]); |
| sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq); |
| |
| *rchip = chip; |
| return 0; |
| |
| errout: |
| azx_free(chip); |
| return err; |
| } |
| |
| static int __devinit azx_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) |
| { |
| struct snd_card *card; |
| struct azx *chip; |
| int err = 0; |
| |
| card = snd_card_new(index, id, THIS_MODULE, 0); |
| if (NULL == card) { |
| snd_printk(KERN_ERR SFX "Error creating card!\n"); |
| return -ENOMEM; |
| } |
| |
| if ((err = azx_create(card, pci, pci_id->driver_data, |
| &chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| card->private_data = chip; |
| |
| /* create codec instances */ |
| if ((err = azx_codec_create(chip, model)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| /* create PCM streams */ |
| if ((err = azx_pcm_create(chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| /* create mixer controls */ |
| if ((err = azx_mixer_create(chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| snd_card_set_dev(card, &pci->dev); |
| |
| if ((err = snd_card_register(card)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| pci_set_drvdata(pci, card); |
| |
| return err; |
| } |
| |
| static void __devexit azx_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| pci_set_drvdata(pci, NULL); |
| } |
| |
| /* PCI IDs */ |
| static struct pci_device_id azx_ids[] __devinitdata = { |
| { 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH6 */ |
| { 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */ |
| { 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ESB2 */ |
| { 0x8086, 0x284b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH8 */ |
| { 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB450 */ |
| { 0x1002, 0x4383, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB600 */ |
| { 0x1002, 0x793b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS600 HDMI */ |
| { 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_VIA }, /* VIA VT8251/VT8237A */ |
| { 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_SIS }, /* SIS966 */ |
| { 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ULI }, /* ULI M5461 */ |
| { 0x10de, 0x026c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 026c */ |
| { 0x10de, 0x0371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 0371 */ |
| { 0, } |
| }; |
| MODULE_DEVICE_TABLE(pci, azx_ids); |
| |
| /* pci_driver definition */ |
| static struct pci_driver driver = { |
| .name = "HDA Intel", |
| .id_table = azx_ids, |
| .probe = azx_probe, |
| .remove = __devexit_p(azx_remove), |
| #ifdef CONFIG_PM |
| .suspend = azx_suspend, |
| .resume = azx_resume, |
| #endif |
| }; |
| |
| static int __init alsa_card_azx_init(void) |
| { |
| return pci_register_driver(&driver); |
| } |
| |
| static void __exit alsa_card_azx_exit(void) |
| { |
| pci_unregister_driver(&driver); |
| } |
| |
| module_init(alsa_card_azx_init) |
| module_exit(alsa_card_azx_exit) |