trident.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:115k
- /*
- * OSS driver for Linux 2.4.x for
- *
- * Trident 4D-Wave
- * SiS 7018
- * ALi 5451
- * Tvia/IGST CyberPro 5050
- *
- * Driver: Alan Cox <alan@redhat.com>
- *
- * Built from:
- * Low level code: <audio@tridentmicro.com> from ALSA
- * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
- * Extended by: Zach Brown <zab@redhat.com>
- *
- * Hacked up by:
- * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- * Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support
- * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support
- * Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support
- * Peter W鋍htler <pwaechtler@loewe-komp.de> CyberPro5050 support
- *
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * History
- * v0.14.9d
- * October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- * use set_current_state, properly release resources on failure in
- * trident_probe, get rid of check_region
- * v0.14.9c
- * August 10 2001 Peter W鋍htler <pwaechtler@loewe-komp.de>
- * added support for Tvia (formerly Integraphics/IGST) CyberPro5050
- * this chip is often found in settop boxes (combined video+audio)
- * v0.14.9b
- * Switch to static inline not extern inline (gcc 3)
- * v0.14.9a
- * Aug 6 2001 Alan Cox
- * 0.14.9 crashed on rmmod due to a timer/bh left running. Simplified
- * the existing logic (the BH doesnt help as ac97 is lock_irqsave)
- * and used del_timer_sync to clean up
- * Fixed a problem where the ALi change broke my generic card
- * v0.14.9
- * Jul 10 2001 Matt Wu
- * Add H/W Volume Control
- * v0.14.8a
- * July 7 2001 Alan Cox
- * Moved Matt Wu's ac97 register cache into the card structure
- * v0.14.8
- * Apr 30 2001 Matt Wu
- * Set EBUF1 and EBUF2 to still mode
- * Add dc97/ac97 reset function
- * Fix power management: ali_restore_regs
- * unreleased
- * Mar 09 2001 Matt Wu
- * Add cache for ac97 access
- * v0.14.7
- * Feb 06 2001 Matt Wu
- * Fix ac97 initialization
- * Fix bug: an extra tail will be played when playing
- * Jan 05 2001 Matt Wu
- * Implement multi-channels and S/PDIF in support for ALi 1535+
- * v0.14.6
- * Nov 1 2000 Ching-Ling Lee
- * Fix the bug of memory leak when switching 5.1-channels to 2 channels.
- * Add lock protection into dynamic changing format of data.
- * Oct 18 2000 Ching-Ling Lee
- * 5.1-channels support for ALi
- * June 28 2000 Ching-Ling Lee
- * S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user
- * Simple Power Management support for ALi
- * v0.14.5 May 23 2000 Ollie Lho
- * Misc bug fix from the Net
- * v0.14.4 May 20 2000 Aaron Holtzman
- * Fix kfree'd memory access in release
- * Fix race in open while looking for a free virtual channel slot
- * remove open_wait wq (which appears to be unused)
- * v0.14.3 May 10 2000 Ollie Lho
- * fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU
- * v0.14.2 Mar 29 2000 Ching-Ling Lee
- * Add clear to silence advance in trident_update_ptr
- * fix invalid data of the end of the sound
- * v0.14.1 Mar 24 2000 Ching-Ling Lee
- * ALi 5451 support added, playback and recording O.K.
- * ALi 5451 originally developed and structured based on sonicvibes, and
- * suggested to merge into this file by Alan Cox.
- * v0.14 Mar 15 2000 Ollie Lho
- * 5.1 channel output support with channel binding. What's the Matrix ?
- * v0.13.1 Mar 10 2000 Ollie Lho
- * few minor bugs on dual codec support, needs more testing
- * v0.13 Mar 03 2000 Ollie Lho
- * new pci_* for 2.4 kernel, back ported to 2.2
- * v0.12 Feb 23 2000 Ollie Lho
- * Preliminary Recording support
- * v0.11.2 Feb 19 2000 Ollie Lho
- * removed incomplete full-dulplex support
- * v0.11.1 Jan 28 2000 Ollie Lho
- * small bug in setting sample rate for 4d-nx (reported by Aaron)
- * v0.11 Jan 27 2000 Ollie Lho
- * DMA bug, scheduler latency, second try
- * v0.10 Jan 24 2000 Ollie Lho
- * DMA bug fixed, found kernel scheduling problem
- * v0.09 Jan 20 2000 Ollie Lho
- * Clean up of channel register access routine (prepare for channel binding)
- * v0.08 Jan 14 2000 Ollie Lho
- * Isolation of AC97 codec code
- * v0.07 Jan 13 2000 Ollie Lho
- * Get rid of ugly old low level access routines (e.g. CHRegs.lp****)
- * v0.06 Jan 11 2000 Ollie Lho
- * Preliminary support for dual (more ?) AC97 codecs
- * v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com>
- * adapt to 2.3.x new __setup/__init call
- * v0.04 Dec 31 1999 Ollie Lho
- * Multiple Open, using Middle Loop Interrupt to smooth playback
- * v0.03 Dec 24 1999 Ollie Lho
- * mem leak in prog_dmabuf and dealloc_dmabuf removed
- * v0.02 Dec 15 1999 Ollie Lho
- * SiS 7018 support added, playback O.K.
- * v0.01 Alan Cox et. al.
- * Initial Release in kernel 2.3.30, does not work
- *
- * ToDo
- * Clean up of low level channel register access code. (done)
- * Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done)
- * Dual AC97 codecs support (done)
- * Recording support (done)
- * Mmap support
- * "Channel Binding" ioctl extension (done)
- * new pci device driver interface for 2.4 kernel (done)
- *
- * Lock order (high->low)
- * lock - hardware lock
- * open_sem - guard opens
- * sem - guard dmabuf, write re-entry etc
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/version.h>
- #include <linux/string.h>
- #include <linux/ctype.h>
- #include <linux/ioport.h>
- #include <linux/sched.h>
- #include <linux/delay.h>
- #include <linux/sound.h>
- #include <linux/slab.h>
- #include <linux/soundcard.h>
- #include <linux/pci.h>
- #include <asm/io.h>
- #include <asm/dma.h>
- #include <linux/init.h>
- #include <linux/poll.h>
- #include <linux/spinlock.h>
- #include <linux/smp_lock.h>
- #include <linux/ac97_codec.h>
- #include <linux/wrapper.h>
- #include <asm/uaccess.h>
- #include <asm/hardirq.h>
- #include <linux/bitops.h>
- #include <linux/proc_fs.h>
- #include <linux/interrupt.h>
- #if defined CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC
- #include <asm/hwrpb.h>
- #endif
- #include "trident.h"
- #include <linux/pm.h>
- #define DRIVER_VERSION "0.14.9d"
- /* magic numbers to protect our data structures */
- #define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
- #define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */
- #define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */
- #define ALI_DMA_MASK 0xffffffff /* ALI Tridents lack the 30-bit limitation */
- #define NR_HW_CH 32
- /* maxinum nuber of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
- have 2 SDATA_IN lines (currently) */
- #define NR_AC97 2
- /* minor number of /dev/swmodem (temporary, experimental) */
- #define SND_DEV_SWMODEM 7
- static const unsigned ali_multi_channels_5_1[] = { /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL,*/ ALI_CENTER_CHANNEL, ALI_LEF_CHANNEL, ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL};
- static const unsigned sample_size[] = { 1, 2, 2, 4 };
- static const unsigned sample_shift[] = { 0, 1, 1, 2 };
- static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %sn";
- enum {
- TRIDENT_4D_DX = 0,
- TRIDENT_4D_NX,
- SIS_7018,
- ALI_5451,
- CYBER5050
- };
- static char * card_names[] = {
- "Trident 4DWave DX",
- "Trident 4DWave NX",
- "SiS 7018 PCI Audio",
- "ALi Audio Accelerator",
- "Tvia/IGST CyberPro 5050"
- };
- static struct pci_device_id trident_pci_tbl [] __devinitdata = {
- {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_DX},
- {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_NX},
- {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7018},
- {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI_5451},
- { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, CYBER5050},
- {0,}
- };
- MODULE_DEVICE_TABLE (pci, trident_pci_tbl);
- /* "software" or virtual channel, an instance of opened /dev/dsp */
- struct trident_state {
- unsigned int magic;
- struct trident_card *card; /* Card info */
- /* file mode */
- mode_t open_mode;
- /* virtual channel number */
- int virt;
- struct dmabuf {
- /* wave sample stuff */
- unsigned int rate;
- unsigned char fmt, enable;
- /* hardware channel */
- struct trident_channel *channel;
- /* OSS buffer management stuff */
- void *rawbuf;
- dma_addr_t dma_handle;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
- /* our buffer acts like a circular ring */
- unsigned hwptr; /* where dma last started, updated by update_ptr */
- unsigned swptr; /* where driver last clear/filled, updated by read/write */
- int count; /* bytes to be comsumed or been generated by dma machine */
- unsigned total_bytes; /* total bytes dmaed by hardware */
- unsigned error; /* number of over/underruns */
- wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
- /* redundant, but makes calculations easier */
- unsigned fragsize;
- unsigned dmasize;
- unsigned fragsamples;
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1;
- unsigned endcleared:1;
- unsigned update_flag;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
-
- } dmabuf;
- /* 5.1channels */
- struct trident_state *other_states[4];
- int multi_channels_adjust_count;
- unsigned chans_num;
- unsigned fmt_flag:1;
- /* Guard against mmap/write/read races */
- struct semaphore sem;
- };
- /* hardware channels */
- struct trident_channel {
- int num; /* channel number */
- u32 lba; /* Loop Begine Address, where dma buffer starts */
- u32 eso; /* End Sample Offset, wehre dma buffer ends (in the unit of samples) */
- u32 delta; /* delta value, sample rate / 48k for playback, 48k/sample rate for recording */
- u16 attribute; /* control where PCM data go and come */
- u16 fm_vol;
- u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
- };
- struct trident_pcm_bank_address {
- u32 start;
- u32 stop;
- u32 aint;
- u32 aint_en;
- };
- static struct trident_pcm_bank_address bank_a_addrs =
- {
- T4D_START_A,
- T4D_STOP_A,
- T4D_AINT_A,
- T4D_AINTEN_A
- };
- static struct trident_pcm_bank_address bank_b_addrs =
- {
- T4D_START_B,
- T4D_STOP_B,
- T4D_AINT_B,
- T4D_AINTEN_B
- };
- struct trident_pcm_bank {
- /* register addresses to control bank operations */
- struct trident_pcm_bank_address *addresses;
- /* each bank has 32 channels */
- u32 bitmap; /* channel allocation bitmap */
- struct trident_channel channels[32];
- };
- struct trident_card {
- unsigned int magic;
- /* We keep trident cards in a linked list */
- struct trident_card *next;
- /* single open lock mechanism, only used for recording */
- struct semaphore open_sem;
- /* The trident has a certain amount of cross channel interaction
- so we use a single per card lock */
- spinlock_t lock;
-
- /* PCI device stuff */
- struct pci_dev * pci_dev;
- u16 pci_id;
- u8 revision;
- /* soundcore stuff */
- int dev_audio;
- /* structures for abstraction of hardware facilities, codecs, banks and channels*/
- struct ac97_codec *ac97_codec[NR_AC97];
- struct trident_pcm_bank banks[NR_BANKS];
- struct trident_state *states[NR_HW_CH];
- /* hardware resources */
- unsigned long iobase;
- u32 irq;
-
- /* Function support */
- struct trident_channel *(*alloc_pcm_channel)(struct trident_card *);
- struct trident_channel *(*alloc_rec_pcm_channel)(struct trident_card *);
- void (*free_pcm_channel)(struct trident_card *, unsigned int chan);
- void (*address_interrupt)(struct trident_card *);
-
- /* Added by Matt Wu 01-05-2001 for spdif in */
- int multi_channel_use_count;
- int rec_channel_use_count;
- u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */
- int mixer_regs_ready;
- /* Added for hardware volume control */
- int hwvolctl;
- struct timer_list timer;
- };
- /* table to map from CHANNELMASK to channel attribute for SiS 7018 */
- static u16 mask2attr [] =
- {
- PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
- HSET, MIC, MODEM_LINE1, MODEM_LINE2,
- I2S_LR, SPDIF_LR
- };
- /* table to map from channel attribute to CHANNELMASK for SiS 7018 */
- static int attr2mask [] = {
- DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
- DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
- };
- /* Added by Matt Wu 01-05-2001 for spdif in */
- static int ali_close_multi_channels(void);
- static void ali_delay(struct trident_card *card,int interval);
- static void ali_detect_spdif_rate(struct trident_card *card);
- static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
- static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
- static struct trident_card *devs;
- static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
- static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
- static int trident_open_mixdev(struct inode *inode, struct file *file);
- static int trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg);
- static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
- static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
- static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
- static void ali_enable_special_channel(struct trident_state *stat);
- static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
- static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
- static void ali_restore_regs(struct trident_card *card);
- static void ali_save_regs(struct trident_card *card);
- static int trident_suspend(struct pci_dev *dev, u32 unused);
- static int trident_resume(struct pci_dev *dev);
- static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
- static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
- static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
- static void ali_setup_spdif_in(struct trident_card *card);
- static void ali_disable_spdif_in(struct trident_card *card);
- static void ali_disable_special_channel(struct trident_card *card, int ch);
- static void ali_setup_spdif_out(struct trident_card *card, int flag);
- static int ali_write_5_1(struct trident_state *state, const char *buffer,int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt);
- static int ali_allocate_other_states_resources(struct trident_state *state, int chan_nums);
- static void ali_free_other_states_resources(struct trident_state *state);
- /* save registers for ALi Power Management */
- static struct ali_saved_registers {
- unsigned long global_regs[ALI_GLOBAL_REGS];
- unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
- unsigned mixer_regs[ALI_MIXER_REGS];
- } ali_registers;
- #define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) (dma_ptr) += (offset);
- (buffer) += (offset);
- (cnt) -= (offset);
- (copy_count) += (offset);
- #define lock_set_fmt(state) {spin_lock_irqsave(&state->card->lock, flags);
- if (state->fmt_flag) {
- spin_unlock_irqrestore(&state->card->lock, flags);
- return -EFAULT;
- }
- state->fmt_flag = 1;
- spin_unlock_irqrestore(&state->card->lock, flags);}
-
- #define unlock_set_fmt(state) {spin_lock_irqsave(&state->card->lock, flags);
- state->fmt_flag = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);}
- static int trident_enable_loop_interrupts(struct trident_card * card)
- {
- u32 global_control;
- global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
- switch (card->pci_id)
- {
- case PCI_DEVICE_ID_SI_7018:
- global_control |= (ENDLP_IE | MIDLP_IE| BANK_B_EN);
- break;
- case PCI_DEVICE_ID_ALI_5451:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- case PCI_DEVICE_ID_INTERG_5050:
- global_control |= (ENDLP_IE | MIDLP_IE);
- break;
- default:
- return FALSE;
- }
- outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
- #ifdef DEBUG
- printk("trident: Enable Loop Interrupts, globctl = 0x%08Xn",
- inl(TRID_REG(card, T4D_LFO_GC_CIR)));
- #endif
- return (TRUE);
- }
- static int trident_disable_loop_interrupts(struct trident_card * card)
- {
- u32 global_control;
- global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
- global_control &= ~(ENDLP_IE | MIDLP_IE);
- outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
- #ifdef DEBUG
- printk("trident: Disabled Loop Interrupts, globctl = 0x%08Xn",
- global_control);
- #endif
- return (TRUE);
- }
- static void trident_enable_voice_irq(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint_en;
- reg = inl(TRID_REG(card, addr));
- reg |= mask;
- outl(reg, TRID_REG(card, addr));
- #ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- printk("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)n",
- channel, addr==T4D_AINTEN_B? "AINTEN_B":"AINTEN_A",reg,addr);
- #endif
- }
- static void trident_disable_voice_irq(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint_en;
-
- reg = inl(TRID_REG(card, addr));
- reg &= ~mask;
- outl(reg, TRID_REG(card, addr));
-
- /* Ack the channel in case the interrupt was set before we disable it. */
- outl(mask, TRID_REG(card, bank->addresses->aint));
- #ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- printk("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)n",
- channel, addr==T4D_AINTEN_B? "AINTEN_B":"AINTEN_A",reg,addr);
- #endif
- }
- static void trident_start_voice(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 addr = bank->addresses->start;
- #ifdef DEBUG
- u32 reg;
- #endif
- outl(mask, TRID_REG(card, addr));
- #ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- printk("trident: start voice on channel %d, %s = 0x%08x(addr:%X)n",
- channel, addr==T4D_START_B? "START_B":"START_A",reg,addr);
- #endif
- }
- static void trident_stop_voice(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 addr = bank->addresses->stop;
- #ifdef DEBUG
- u32 reg;
- #endif
- outl(mask, TRID_REG(card, addr));
- #ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- printk("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)n",
- channel, addr==T4D_STOP_B? "STOP_B":"STOP_A",reg,addr);
- #endif
- }
- static u32 trident_get_interrupt_mask (struct trident_card * card, unsigned int channel)
- {
- struct trident_pcm_bank *bank = &card->banks[channel];
- u32 addr = bank->addresses->aint;
- return inl(TRID_REG(card, addr));
- }
- static int trident_check_channel_interrupt(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- u32 reg = trident_get_interrupt_mask (card, channel >> 5);
- #ifdef DEBUG
- if (reg & mask)
- printk("trident: channel %d has interrupt, %s = 0x%08xn",
- channel,reg==T4D_AINT_B? "AINT_B":"AINT_A", reg);
- #endif
- return (reg & mask) ? TRUE : FALSE;
- }
- static void trident_ack_channel_interrupt(struct trident_card * card, unsigned int channel)
- {
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint;
- reg = inl(TRID_REG(card, addr));
- reg &= mask;
- outl(reg, TRID_REG(card, addr));
- #ifdef DEBUG
- reg = inl(TRID_REG(card, T4D_AINT_B));
- printk("trident: Ack channel %d interrupt, AINT_B = 0x%08xn",
- channel, reg);
- #endif
- }
- static struct trident_channel * trident_alloc_pcm_channel(struct trident_card *card)
- {
- struct trident_pcm_bank *bank;
- int idx;
- bank = &card->banks[BANK_B];
- for (idx = 31; idx >= 0; idx--) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx + 32;
- return channel;
- }
- }
- /* no more free channels available */
- printk(KERN_ERR "trident: no more channels available on Bank B.n");
- return NULL;
- }
- static void trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
- {
- int bank;
- unsigned char b;
- if (channel < 31 || channel > 63)
- return;
- if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
- card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
- b = inb (TRID_REG(card, T4D_REC_CH));
- if ((b & ~0x80) == channel)
- outb(0x0, TRID_REG(card, T4D_REC_CH));
- }
-
- bank = channel >> 5;
- channel = channel & 0x1f;
-
- card->banks[bank].bitmap &= ~(1 << (channel));
- }
- static struct trident_channel * cyber_alloc_pcm_channel(struct trident_card *card)
- {
- struct trident_pcm_bank *bank;
- int idx;
- /* The cyberpro 5050 has only 32 voices and one bank */
- /* .. at least they are not documented (if you want to call that
- * crap documentation), perhaps broken ? */
- bank = &card->banks[BANK_A];
- for (idx = 31; idx >= 0; idx--) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
- /* no more free channels available */
- printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.n");
- return NULL;
- }
- static void cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
- {
- if (channel > 31)
- return;
- card->banks[BANK_A].bitmap &= ~(1 << (channel));
- }
- static inline void cyber_outidx(int port,int idx,int data)
- {
- outb(idx,port);
- outb(data,port+1);
- }
- static inline int cyber_inidx(int port,int idx)
- {
- outb(idx,port);
- return inb(port+1);
- }
- static int cyber_init_ritual(struct trident_card *card)
- {
- /* some black magic, taken from SDK samples */
- /* remove this and nothing will work */
- int portDat;
- int ret = 0;
- unsigned long flags;
- /*
- * Keep interrupts off for the configure - we don't want to
- * clash with another cyberpro config event
- */
-
- save_flags(flags);
- cli();
- portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
- /* enable, if it was disabled */
- if( (portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE ) {
- printk(KERN_INFO "cyberpro5050: enabling audio controllern" );
- cyber_outidx( CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
- portDat | CYBER_BMSK_AUENZ_ENABLE );
- /* check again if hardware is enabled now */
- portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
- }
- if( (portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE )
- {
- printk(KERN_ERR "cyberpro5050: initAudioAccess: no successn" );
- ret = -1;
- }
- else
- {
- cyber_outidx( CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE, CYBER_BMSK_AUDIO_INT_ENABLE );
- cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x01 );
- cyber_outidx( CYBER_PORT_AUDIO, 0xba, 0x20 );
- cyber_outidx( CYBER_PORT_AUDIO, 0xbb, 0x08 );
- cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x02 );
- cyber_outidx( CYBER_PORT_AUDIO, 0xb3, 0x06 );
- cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x00 );
- }
- restore_flags(flags);
- return ret;
- }
- /* called with spin lock held */
- static int trident_load_channel_registers(struct trident_card *card, u32 *data, unsigned int channel)
- {
- int i;
- if (channel > 63)
- return FALSE;
- /* select hardware channel to write */
- outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
- /* Output the channel registers, but don't write register
- three to an ALI chip. */
- for (i = 0; i < CHANNEL_REGS; i++) {
- if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
- continue;
- outl(data[i], TRID_REG(card, CHANNEL_START + 4*i));
- }
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
- card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
- outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
- outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
- }
- return TRUE;
- }
- /* called with spin lock held */
- static int trident_write_voice_regs(struct trident_state *state)
- {
- unsigned int data[CHANNEL_REGS + 1];
- struct trident_channel *channel;
- channel = state->dmabuf.channel;
- data[1] = channel->lba;
- data[4] = channel->control;
- switch (state->card->pci_id)
- {
- case PCI_DEVICE_ID_ALI_5451:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = 0;
- break;
- case PCI_DEVICE_ID_SI_7018:
- case PCI_DEVICE_ID_INTERG_5050:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = channel->fm_vol & 0xffff;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- data[0] = (channel->delta << 24);
- data[2] = ((channel->delta << 16) & 0xff000000) | (channel->eso & 0x00ffffff);
- data[3] = channel->fm_vol & 0xffff;
- break;
- default:
- return FALSE;
- }
- return trident_load_channel_registers(state->card, data, channel->num);
- }
- static int compute_rate_play(u32 rate)
- {
- int delta;
- /* We special case 44100 and 8000 since rounding with the equation
- does not give us an accurate enough value. For 11025 and 22050
- the equation gives us the best answer. All other frequencies will
- also use the equation. JDW */
- if (rate == 44100)
- delta = 0xeb3;
- else if (rate == 8000)
- delta = 0x2ab;
- else if (rate == 48000)
- delta = 0x1000;
- else
- delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
- return delta;
- }
- static int compute_rate_rec(u32 rate)
- {
- int delta;
- if (rate == 44100)
- delta = 0x116a;
- else if (rate == 8000)
- delta = 0x6000;
- else if (rate == 48000)
- delta = 0x1000;
- else
- delta = ((48000 << 12) / rate) & 0x0000ffff;
- return delta;
- }
- /* set playback sample rate */
- static unsigned int trident_set_dac_rate(struct trident_state * state, unsigned int rate)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- if (rate > 48000)
- rate = 48000;
- if (rate < 4000)
- rate = 4000;
- dmabuf->rate = rate;
- dmabuf->channel->delta = compute_rate_play(rate);
- trident_write_voice_regs(state);
- #ifdef DEBUG
- printk("trident: called trident_set_dac_rate : rate = %dn", rate);
- #endif
- return rate;
- }
- /* set recording sample rate */
- static unsigned int trident_set_adc_rate(struct trident_state * state, unsigned int rate)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- if (rate > 48000)
- rate = 48000;
- if (rate < 4000)
- rate = 4000;
- dmabuf->rate = rate;
- dmabuf->channel->delta = compute_rate_rec(rate);
- trident_write_voice_regs(state);
- #ifdef DEBUG
- printk("trident: called trident_set_adc_rate : rate = %dn", rate);
- #endif
- return rate;
- }
- /* prepare channel attributes for playback */
- static void trident_play_setup(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- struct trident_channel *channel = dmabuf->channel;
- channel->lba = dmabuf->dma_handle;
- channel->delta = compute_rate_play(dmabuf->rate);
- channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
- channel->eso -= 1;
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
- channel->attribute = 0;
- if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if ((channel->num == ALI_SPDIF_IN_CHANNEL) || (channel->num == ALI_PCM_IN_CHANNEL))
- ali_disable_special_channel(state->card, channel->num);
- else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
- && (channel->num == ALI_SPDIF_OUT_CHANNEL))
- {
- ali_set_spdif_out_rate(state->card, state->dmabuf.rate);
- state->dmabuf.channel->delta = 0x1000;
- }
- }
- }
- channel->fm_vol = 0x0;
-
- channel->control = CHANNEL_LOOP;
- if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
- /* 16-bits */
- channel->control |= CHANNEL_16BITS;
- /* signed */
- channel->control |= CHANNEL_SIGNED;
- }
- if (dmabuf->fmt & TRIDENT_FMT_STEREO)
- /* stereo */
- channel->control |= CHANNEL_STEREO;
- #ifdef DEBUG
- printk("trident: trident_play_setup, LBA = 0x%08x, "
- "Delta = 0x%08x, ESO = 0x%08x, Control = 0x%08xn",
- channel->lba, channel->delta, channel->eso, channel->control);
- #endif
- trident_write_voice_regs(state);
- }
- /* prepare channel attributes for recording */
- static void trident_rec_setup(struct trident_state *state)
- {
- u16 w;
- u8 bval;
- struct trident_card *card = state->card;
- struct dmabuf *dmabuf = &state->dmabuf;
- struct trident_channel *channel = dmabuf->channel;
- unsigned int rate;
- /* Enable AC-97 ADC (capture) */
- switch (card->pci_id)
- {
- case PCI_DEVICE_ID_ALI_5451:
- ali_enable_special_channel(state);
- break;
- case PCI_DEVICE_ID_SI_7018:
- /* for 7018, the ac97 is always in playback/record (duplex) mode */
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- /* enable and set record channel */
- outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- w = inw(TRID_REG(card, T4D_MISCINT));
- outw(w | 0x1000, TRID_REG(card, T4D_MISCINT));
- /* enable and set record channel */
- outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- /* don't know yet, using special channel 22 in GC1(0xd4)? */
- break;
- default:
- return;
- }
- channel->lba = dmabuf->dma_handle;
- channel->delta = compute_rate_rec(dmabuf->rate);
- if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) && (channel->num == ALI_SPDIF_IN_CHANNEL)) {
- rate = ali_get_spdif_in_rate(card);
- if (rate == 0)
- {
- printk(KERN_WARNING "trident: ALi 5451 S/PDIF input setup error!n");
- rate = 48000;
- }
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL));
- if (bval & 0x10)
- {
- outb(bval,TRID_REG(card,ALI_SPDIF_CTRL));
- printk(KERN_WARNING "trident: cleared ALi 5451 S/PDIF parity error flag.n");
- }
- if (rate != 48000)
- channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff;
- }
-
- channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
- channel->eso -= 1;
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
- channel->attribute = 0;
- }
- channel->fm_vol = 0x0;
-
- channel->control = CHANNEL_LOOP;
- if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
- /* 16-bits */
- channel->control |= CHANNEL_16BITS;
- /* signed */
- channel->control |= CHANNEL_SIGNED;
- }
- if (dmabuf->fmt & TRIDENT_FMT_STEREO)
- /* stereo */
- channel->control |= CHANNEL_STEREO;
- #ifdef DEBUG
- printk("trident: trident_rec_setup, LBA = 0x%08x, "
- "Delat = 0x%08x, ESO = 0x%08x, Control = 0x%08xn",
- channel->lba, channel->delta, channel->eso, channel->control);
- #endif
- trident_write_voice_regs(state);
- }
- /* get current playback/recording dma buffer pointer (byte offset from LBA),
- called with spinlock held! */
- static inline unsigned trident_get_dma_addr(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- u32 cso;
- if (!dmabuf->enable)
- return 0;
- outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR));
- switch (state->card->pci_id)
- {
- case PCI_DEVICE_ID_ALI_5451:
- case PCI_DEVICE_ID_SI_7018:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- case PCI_DEVICE_ID_INTERG_5050:
- /* 16 bits ESO, CSO for 7018 and DX */
- cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- /* 24 bits ESO, CSO for NX */
- cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff;
- break;
- default:
- return 0;
- }
- #ifdef DEBUG
- printk("trident: trident_get_dma_addr: chip reported channel: %d, "
- "cso = 0x%04xn",
- dmabuf->channel->num, cso);
- #endif
- /* ESO and CSO are in units of Samples, convert to byte offset */
- cso <<= sample_shift[dmabuf->fmt];
- return (cso % dmabuf->dmasize);
- }
- /* Stop recording (lock held) */
- static inline void __stop_adc(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- dmabuf->enable &= ~ADC_RUNNING;
- trident_stop_voice(card, chan_num);
- trident_disable_voice_irq(card, chan_num);
- }
- static void stop_adc(struct trident_state *state)
- {
- struct trident_card *card = state->card;
- unsigned long flags;
- spin_lock_irqsave(&card->lock, flags);
- __stop_adc(state);
- spin_unlock_irqrestore(&card->lock, flags);
- }
- static void start_adc(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- unsigned long flags;
- spin_lock_irqsave(&card->lock, flags);
- if ((dmabuf->mapped || dmabuf->count < (signed)dmabuf->dmasize) && dmabuf->ready) {
- dmabuf->enable |= ADC_RUNNING;
- trident_enable_voice_irq(card, chan_num);
- trident_start_voice(card, chan_num);
- }
- spin_unlock_irqrestore(&card->lock, flags);
- }
- /* stop playback (lock held) */
- static inline void __stop_dac(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- dmabuf->enable &= ~DAC_RUNNING;
- trident_stop_voice(card, chan_num);
- if (state->chans_num == 6) {
- trident_stop_voice(card, state->other_states[0]->dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[1]->dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[2]->dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[3]->dmabuf.channel->num);
- }
- trident_disable_voice_irq(card, chan_num);
- }
- static void stop_dac(struct trident_state *state)
- {
- struct trident_card *card = state->card;
- unsigned long flags;
- spin_lock_irqsave(&card->lock, flags);
- __stop_dac(state);
- spin_unlock_irqrestore(&card->lock, flags);
- }
- static void start_dac(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- unsigned long flags;
- spin_lock_irqsave(&card->lock, flags);
- if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) {
- dmabuf->enable |= DAC_RUNNING;
- trident_enable_voice_irq(card, chan_num);
- trident_start_voice(card, chan_num);
- if (state->chans_num == 6) {
- trident_start_voice(card, state->other_states[0]->dmabuf.channel->num);
- trident_start_voice(card, state->other_states[1]->dmabuf.channel->num);
- trident_start_voice(card, state->other_states[2]->dmabuf.channel->num);
- trident_start_voice(card, state->other_states[3]->dmabuf.channel->num);
- }
- }
- spin_unlock_irqrestore(&card->lock, flags);
- }
- #define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
- #define DMABUF_MINORDER 1
- /* allocate DMA buffer, playback and recording buffer should be allocated seperately */
- static int alloc_dmabuf(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- void *rawbuf = NULL;
- int order;
- struct page *page, *pend;
- /* alloc as big a chunk as we can, FIXME: is this necessary ?? */
- for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
- if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
- PAGE_SIZE << order,
- &dmabuf->dma_handle)))
- break;
- if (!rawbuf)
- return -ENOMEM;
- #ifdef DEBUG
- printk("trident: allocated %ld (order = %d) bytes at %pn",
- PAGE_SIZE << order, order, rawbuf);
- #endif
- dmabuf->ready = dmabuf->mapped = 0;
- dmabuf->rawbuf = rawbuf;
- dmabuf->buforder = order;
-
- /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
- pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(rawbuf); page <= pend; page++)
- mem_map_reserve(page);
- return 0;
- }
- /* free DMA buffer */
- static void dealloc_dmabuf(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- struct page *page, *pend;
- if (dmabuf->rawbuf) {
- /* undo marking the pages as reserved */
- pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
- for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
- mem_map_unreserve(page);
- pci_free_consistent(state->card->pci_dev, PAGE_SIZE << dmabuf->buforder,
- dmabuf->rawbuf, dmabuf->dma_handle);
- }
- dmabuf->rawbuf = NULL;
- dmabuf->mapped = dmabuf->ready = 0;
- }
- static int prog_dmabuf(struct trident_state *state, unsigned rec)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned bytepersec;
- struct trident_state *s = state;
- unsigned bufsize, dma_nums;
- unsigned long flags;
- int ret, i, order;
- struct page *page, *pend;
-
- lock_set_fmt(state);
- if (state->chans_num == 6)
- dma_nums = 5;
- else dma_nums = 1;
-
- for (i = 0; i < dma_nums; i++) {
- if (i > 0) {
- s = state->other_states[i - 1];
- dmabuf = &s->dmabuf;
- dmabuf->fmt = state->dmabuf.fmt;
- dmabuf->rate = state->dmabuf.rate;
- }
- spin_lock_irqsave(&s->card->lock, flags);
- dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0;
- dmabuf->count = dmabuf->error = 0;
- spin_unlock_irqrestore(&s->card->lock, flags);
- /* allocate DMA buffer if not allocated yet */
- if (!dmabuf->rawbuf) {
- if (i == 0) {
- if ((ret = alloc_dmabuf(state))) {
- unlock_set_fmt(state);
- return ret;
- }
- }
- else {
- if ((order = state->dmabuf.buforder - 1) >= DMABUF_MINORDER) {
- dmabuf->rawbuf = pci_alloc_consistent(state->card->pci_dev,
- PAGE_SIZE << order,
- &dmabuf->dma_handle);
- }
- if (!dmabuf->rawbuf) {
- free_pages((unsigned long)state->dmabuf.rawbuf, state->dmabuf.buforder);
- state->dmabuf.rawbuf = NULL;
- i-=2;
- for (; i >= 0; i--) {
- pci_free_consistent(state->card->pci_dev,
- PAGE_SIZE << state->other_states[i]->dmabuf.buforder,
- state->other_states[i]->dmabuf.rawbuf,
- state->other_states[i]->dmabuf.dma_handle);
- }
- unlock_set_fmt(state);
- return -ENOMEM;
- }
- dmabuf->ready = dmabuf->mapped = 0;
- dmabuf->buforder = order;
- pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
- mem_map_reserve(page);
- }
- }
- /* FIXME: figure out all this OSS fragment stuff */
- bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt];
- bufsize = PAGE_SIZE << dmabuf->buforder;
- if (dmabuf->ossfragshift) {
- if ((1000 << dmabuf->ossfragshift) < bytepersec)
- dmabuf->fragshift = ld2(bytepersec/1000);
- else
- dmabuf->fragshift = dmabuf->ossfragshift;
- } else {
- /* lets hand out reasonable big ass buffers by default */
- dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT -2);
- }
- dmabuf->numfrag = bufsize >> dmabuf->fragshift;
- while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) {
- dmabuf->fragshift--;
- dmabuf->numfrag = bufsize >> dmabuf->fragshift;
- }
- dmabuf->fragsize = 1 << dmabuf->fragshift;
- if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag)
- dmabuf->numfrag = dmabuf->ossmaxfrags;
- dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt];
- dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
- memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80,
- dmabuf->dmasize);
- spin_lock_irqsave(&s->card->lock, flags);
- if (rec) {
- trident_rec_setup(s);
- } else {
- trident_play_setup(s);
- }
- spin_unlock_irqrestore(&s->card->lock, flags);
- /* set the ready flag for the dma buffer */
- dmabuf->ready = 1;
- #ifdef DEBUG
- printk("trident: prog_dmabuf(%d), sample rate = %d, format = %d, numfrag = %d, "
- "fragsize = %d dmasize = %dn",
- dmabuf->channel->num, dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
- dmabuf->fragsize, dmabuf->dmasize);
- #endif
- }
- unlock_set_fmt(state);
- return 0;
- }
- /* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e.
- |------------|------------| or |xxxxxxxxxxxx|------------| or |xxxxxxxxxxxx|xxxxxxxxxxxx|
- but we almost always get this
- |xxxxxx------|------------| or |xxxxxxxxxxxx|xxxxx-------|
- so we have to clear the tail space to "silence"
- |xxxxxx000000|------------| or |xxxxxxxxxxxx|xxxxxx000000|
- */
- static void trident_clear_tail(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned swptr;
- unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80;
- unsigned int len;
- unsigned long flags;
- spin_lock_irqsave(&state->card->lock, flags);
- swptr = dmabuf->swptr;
- spin_unlock_irqrestore(&state->card->lock, flags);
- if (swptr == 0 || swptr == dmabuf->dmasize / 2 || swptr == dmabuf->dmasize)
- return;
- if (swptr < dmabuf->dmasize/2)
- len = dmabuf->dmasize/2 - swptr;
- else
- len = dmabuf->dmasize - swptr;
- memset(dmabuf->rawbuf + swptr, silence, len);
- if(state->card->pci_id != PCI_DEVICE_ID_ALI_5451)
- {
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr += len;
- dmabuf->count += len;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- /* restart the dma machine in case it is halted */
- start_dac(state);
- }
- static int drain_dac(struct trident_state *state, int nonblock)
- {
- DECLARE_WAITQUEUE(wait, current);
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned long tmo;
- int count;
- unsigned long diff = 0;
- if (dmabuf->mapped || !dmabuf->ready)
- return 0;
- add_wait_queue(&dmabuf->wait, &wait);
- for (;;) {
- /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
- every time to make the process really go to sleep */
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&state->card->lock, flags);
- count = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&dmabuf->wait, &wait);
- set_current_state(TASK_RUNNING);
- return -EBUSY;
- }
- /* No matter how much data is left in the buffer, we have to wait until
- CSO == ESO/2 or CSO == ESO when address engine interrupts */
- if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
- state->card->pci_id == PCI_DEVICE_ID_INTERG_5050)
- {
- diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize ;
- diff = diff % (dmabuf->dmasize);
- tmo = (diff * HZ) / dmabuf->rate;
- }
- else
- {
- tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
- }
- tmo >>= sample_shift[dmabuf->fmt];
- if (!schedule_timeout(tmo ? tmo : 1) && tmo){
- break;
- }
- }
- remove_wait_queue(&dmabuf->wait, &wait);
- set_current_state(TASK_RUNNING);
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
- }
- /* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
- static void trident_update_ptr(struct trident_state *state)
- {
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned hwptr, swptr;
- int clear_cnt = 0;
- int diff;
- unsigned char silence;
- unsigned half_dmasize;
- /* update hardware pointer */
- hwptr = trident_get_dma_addr(state);
- diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
- dmabuf->hwptr = hwptr;
- dmabuf->total_bytes += diff;
- /* error handling and process wake up for ADC */
- if (dmabuf->enable == ADC_RUNNING) {
- if (dmabuf->mapped) {
- dmabuf->count -= diff;
- if (dmabuf->count >= (signed)dmabuf->fragsize)
- wake_up(&dmabuf->wait);
- } else {
- dmabuf->count += diff;
- if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) {
- /* buffer underrun or buffer overrun, we have no way to recover
- it here, just stop the machine and let the process force hwptr
- and swptr to sync */
- __stop_adc(state);
- dmabuf->error++;
- }
- if (dmabuf->count < (signed)dmabuf->dmasize/2)
- wake_up(&dmabuf->wait);
- }
- }
- /* error handling and process wake up for DAC */
- if (dmabuf->enable == DAC_RUNNING) {
- if (dmabuf->mapped) {
- dmabuf->count += diff;
- if (dmabuf->count >= (signed)dmabuf->fragsize)
- wake_up(&dmabuf->wait);
- } else {
- dmabuf->count -= diff;
- if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) {
- /* buffer underrun or buffer overrun, we have no way to recover
- it here, just stop the machine and let the process force hwptr
- and swptr to sync */
- __stop_dac(state);
- dmabuf->error++;
- }
- else if (!dmabuf->endcleared) {
- swptr = dmabuf->swptr;
- silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80);
- if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) {
- /* We must clear end data of 1/2 dmabuf if needed.
- According to 1/2 algorithm of Address Engine Interrupt,
- check the validation of the data of half dmasize. */
- half_dmasize = dmabuf->dmasize / 2;
- if ((diff = hwptr - half_dmasize) < 0 )
- diff = hwptr;
- if ((dmabuf->count + diff) < half_dmasize) {
- //there is invalid data in the end of half buffer
- if ((clear_cnt = half_dmasize - swptr) < 0)
- clear_cnt += half_dmasize;
- //clear the invalid data
- memset (dmabuf->rawbuf + swptr,
- silence, clear_cnt);
- if (state->chans_num == 6) {
- clear_cnt = clear_cnt / 2;
- swptr = swptr / 2;
- memset (state->other_states[0]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[1]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[2]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[3]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- }
- dmabuf->endcleared = 1;
- }
- } else if (dmabuf->count < (signed) dmabuf->fragsize) {
- clear_cnt = dmabuf->fragsize;
- if ((swptr + clear_cnt) > dmabuf->dmasize)
- clear_cnt = dmabuf->dmasize - swptr;
- memset (dmabuf->rawbuf + swptr, silence, clear_cnt);
- if (state->chans_num == 6) {
- clear_cnt = clear_cnt / 2;
- swptr = swptr / 2;
- memset (state->other_states[0]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[1]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[2]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset (state->other_states[3]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- }
- dmabuf->endcleared = 1;
- }
- }
- /* trident_update_ptr is called by interrupt handler or by process via
- ioctl/poll, we only wake up the waiting process when we have more
- than 1/2 buffer free (always true for interrupt handler) */
- if (dmabuf->count < (signed)dmabuf->dmasize/2)
- wake_up(&dmabuf->wait);
- }
- }
- dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE;
- }
- static void trident_address_interrupt(struct trident_card *card)
- {
- int i;
- struct trident_state *state;
-
- /* Update the pointers for all channels we are running. */
- /* FIXME: should read interrupt status only once */
- for (i = 0; i < NR_HW_CH; i++) {
- if (trident_check_channel_interrupt(card, 63 - i)) {
- trident_ack_channel_interrupt(card, 63 - i);
- if ((state = card->states[i]) != NULL) {
- trident_update_ptr(state);
- } else {
- printk("trident: spurious channel irq %d.n",
- 63 - i);
- trident_stop_voice(card, 63 - i);
- trident_disable_voice_irq(card, 63 - i);
- }
- }
- }
- }
- static void ali_hwvol_control(struct trident_card *card, int opt)
- {
- u16 dwTemp, volume[2], mute, diff, *pVol[2];
- dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02);
- mute = dwTemp & 0x8000;
- volume[0] = dwTemp & 0x001f;
- volume[1] = (dwTemp & 0x1f00) >> 8;
- if (volume[0] < volume [1]) {
- pVol[0] = &volume[0];
- pVol[1] = &volume[1];
- } else {
- pVol[1] = &volume[0];
- pVol[0] = &volume[1];
- }
- diff = *(pVol[1]) - *(pVol[0]);
- if (opt == 1) { // MUTE
- dwTemp ^= 0x8000;
- ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
- } else if (opt == 2) { // Down
- if (mute)
- return;
- if (*(pVol[1]) < 0x001f) {
- (*pVol[1])++;
- *(pVol[0]) = *(pVol[1]) - diff;
- }
- dwTemp &= 0xe0e0;
- dwTemp |= (volume[0]) | (volume[1] << 8);
- ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
- card->ac97_codec[0]->mixer_state[0] = ((32-volume[0])*25/8) | (((32-volume[1])*25/8) << 8);
- } else if (opt == 4) { // Up
- if (mute)
- return;
- if (*(pVol[0]) >0) {
- (*pVol[0])--;
- *(pVol[1]) = *(pVol[0]) + diff;
- }
- dwTemp &= 0xe0e0;
- dwTemp |= (volume[0]) | (volume[1] << 8);
- ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
- card->ac97_codec[0]->mixer_state[0] = ((32-volume[0])*25/8) | (((32-volume[1])*25/8) << 8);
- }
- else
- {
- /* Nothing needs doing */
- }
- }
- /*
- * Re-enable reporting of vol change after 0.1 seconds
- */
- static void ali_timeout(unsigned long ptr)
- {
- struct trident_card *card = (struct trident_card *)ptr;
- u16 temp = 0;
- /* Enable GPIO IRQ (MISCINT bit 18h)*/
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp |= 0x0004;
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
- }
- /*
- * Set up the timer to clear the vol change notification
- */
-
- static void ali_set_timer(struct trident_card *card)
- {
- /* Add Timer Routine to Enable GPIO IRQ */
- del_timer(&card->timer); /* Never queue twice */
- card->timer.function = ali_timeout;
- card->timer.data = (unsigned long) card;
- card->timer.expires = jiffies + HZ/10;
- add_timer(&card->timer);
- }
- /*
- * Process a GPIO event
- */
-
- static void ali_queue_task(struct trident_card *card, int opt)
- {
- u16 temp;
- /* Disable GPIO IRQ (MISCINT bit 18h)*/
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp &= (u16)(~0x0004);
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
- /* Adjust the volume */
- ali_hwvol_control(card, opt);
-
- /* Set the timer for 1/10th sec */
- ali_set_timer(card);
- }
- static void cyber_address_interrupt(struct trident_card *card)
- {
- int i,irq_status;
- struct trident_state *state;
- /* Update the pointers for all channels we are running. */
- /* FIXED: read interrupt status only once */
- irq_status=inl(TRID_REG(card, T4D_AINT_A) );
- #ifdef DEBUG
- printk("cyber_address_interrupt: irq_status 0x%Xn",irq_status);
- #endif
- for (i = 0; i < NR_HW_CH; i++) {
- if (irq_status & ( 1 << (31 - i)) ) {
- /* clear bit by writing a 1, zeroes are ignored */
- outl( (1 <<(31-i)), TRID_REG(card, T4D_AINT_A));
-
- #ifdef DEBUG
- printk("cyber_interrupt: channel %dn", 31-i);
- #endif
- if ((state = card->states[i]) != NULL) {
- trident_update_ptr(state);
- } else {
- printk("cyber5050: spurious channel irq %d.n",
- 31 - i);
- trident_stop_voice(card, 31 - i);
- trident_disable_voice_irq(card, 31 - i);
- }
- }
- }
- }
- static void trident_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct trident_card *card = (struct trident_card *)dev_id;
- u32 event;
- u32 gpio;
- spin_lock(&card->lock);
- event = inl(TRID_REG(card, T4D_MISCINT));
- #ifdef DEBUG
- printk("trident: trident_interrupt called, MISCINT = 0x%08xn", event);
- #endif
- if (event & ADDRESS_IRQ) {
- card->address_interrupt(card);
- }
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451)
- {
- /* GPIO IRQ (H/W Volume Control) */
- event = inl(TRID_REG(card, T4D_MISCINT));
- if (event & (1<<25)) {
- gpio = inl(TRID_REG(card, ALI_GPIO));
- if (!timer_pending(&card->timer))
- ali_queue_task(card, gpio&0x07);
- }
- event = inl(TRID_REG(card, T4D_MISCINT));
- outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(card, T4D_MISCINT));
- spin_unlock(&card->lock);
- return;
- }
- /* manually clear interrupt status, bad hardware design, blame T^2 */
- outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
- TRID_REG(card, T4D_MISCINT));
- spin_unlock(&card->lock);
- }
- /* in this loop, dmabuf.count signifies the amount of data that is waiting to be copied to
- the user's buffer. it is filled by the dma machine and drained by this loop. */
- static ssize_t trident_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret = 0;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- #ifdef DEBUG
- printk("trident: trident_read called, count = %dn", count);
- #endif
- VALIDATE_STATE(state);
- if (ppos != &file->f_pos)
- return -ESPIPE;
-
- if (dmabuf->mapped)
- return -ENXIO;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
-
- down(&state->sem);
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
- goto out;
- while (count > 0) {
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->count > (signed) dmabuf->dmasize) {
- /* buffer overrun, we are recovering from sleep_on_timeout,
- resync hwptr and swptr, make process flush the buffer */
- dmabuf->count = dmabuf->dmasize;
- dmabuf->swptr = dmabuf->hwptr;
- }
- swptr = dmabuf->swptr;
- cnt = dmabuf->dmasize - swptr;
- if (dmabuf->count < cnt)
- cnt = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- /* buffer is empty, start the dma machine and wait for data to be
- recorded */
- start_adc(state);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret) ret = -EAGAIN;
- goto out;
- }
-
- up(&state->sem);
- /* No matter how much space left in the buffer, we have to wait until
- CSO == ESO/2 or CSO == ESO when address engine interrupts */
- tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
- tmo >>= sample_shift[dmabuf->fmt];
- /* There are two situations when sleep_on_timeout returns, one is when
- the interrupt is serviced correctly and the process is waked up by
- ISR ON TIME. Another is when timeout is expired, which means that
- either interrupt is NOT serviced correctly (pending interrupt) or it
- is TOO LATE for the process to be scheduled to run (scheduler latency)
- which results in a (potential) buffer overrun. And worse, there is
- NOTHING we can do to prevent it. */
- if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
- #ifdef DEBUG
- printk(KERN_ERR "trident: recording schedule timeout, "
- "dmasz %u fragsz %u count %i hwptr %u swptr %un",
- dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
- #endif
- /* a buffer overrun, we delay the recovery until next time the
- while loop begin and we REALLY have space to record */
- }
- if (signal_pending(current)) {
- if(!ret) ret = -ERESTARTSYS;
- goto out;
- }
- down(&state->sem);
- if(dmabuf->mapped)
- {
- if(!ret)
- ret = -ENXIO;
- goto out;
- }
- continue;
- }
- if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
- if (!ret) ret = -EFAULT;
- goto out;
- }
- swptr = (swptr + cnt) % dmabuf->dmasize;
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count -= cnt;
- spin_unlock_irqrestore(&state->card->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_adc(state);
- }
- out:
- up(&state->sem);
- return ret;
- }
- /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
- the soundcard. it is drained by the dma machine and filled by this loop. */
- static ssize_t trident_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- unsigned int state_cnt;
- unsigned int copy_count;
- #ifdef DEBUG
- printk("trident: trident_write called, count = %dn", count);
- #endif
- VALIDATE_STATE(state);
- if (ppos != &file->f_pos)
- return -ESPIPE;
-
- /*
- * Guard against an mmap or ioctl while writing
- */
-
- down(&state->sem);
-
- if (dmabuf->mapped)
- {
- ret = -ENXIO;
- goto out;
- }
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
- goto out;
- if (!access_ok(VERIFY_READ, buffer, count))
- {
- ret= -EFAULT;
- goto out;
- }
-
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->count < 0) {
- /* buffer underrun, we are recovering from sleep_on_timeout,
- resync hwptr and swptr */
- dmabuf->count = 0;
- dmabuf->swptr = dmabuf->hwptr;
- }
- swptr = dmabuf->swptr;
- cnt = dmabuf->dmasize - swptr;
- if (dmabuf->count + cnt > dmabuf->dmasize)
- cnt = dmabuf->dmasize - dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- /* buffer is full, start the dma machine and wait for data to be
- played */
- start_dac(state);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret) ret = -EAGAIN;
- goto out;
- }
- /* No matter how much data left in the buffer, we have to wait until
- CSO == ESO/2 or CSO == ESO when address engine interrupts */
- lock_set_fmt(state);
- tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
- tmo >>= sample_shift[dmabuf->fmt];
- unlock_set_fmt(state);
- up(&state->sem);
-
- /* There are two situations when sleep_on_timeout returns, one is when
- the interrupt is serviced correctly and the process is waked up by
- ISR ON TIME. Another is when timeout is expired, which means that
- either interrupt is NOT serviced correctly (pending interrupt) or it
- is TOO LATE for the process to be scheduled to run (scheduler latency)
- which results in a (potential) buffer underrun. And worse, there is
- NOTHING we can do to prevent it. */
- if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
- #ifdef DEBUG
- printk(KERN_ERR "trident: playback schedule timeout, "
- "dmasz %u fragsz %u count %i hwptr %u swptr %un",
- dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
- #endif
- /* a buffer underrun, we delay the recovery until next time the
- while loop begin and we REALLY have data to play */
- }
- if (signal_pending(current)) {
- if (!ret) ret = -ERESTARTSYS;
- goto out;
- }
- down(&state->sem);
- if(dmabuf->mapped)
- {
- if(!ret)
- ret = -ENXIO;
- goto out;
- }
- continue;
- }
- lock_set_fmt(state);
- if (state->chans_num == 6) {
- copy_count = 0;
- state_cnt = 0;
- if (ali_write_5_1(state, buffer, cnt, ©_count, &state_cnt) == -EFAULT) {
- if (state_cnt){
- swptr = (swptr + state_cnt) % dmabuf->dmasize;
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count += state_cnt;
- dmabuf->endcleared = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- ret += copy_count;
- if (!ret) ret = -EFAULT;
- unlock_set_fmt(state);
- goto out;
- }
- }
- else {
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
- if (!ret) ret = -EFAULT;
- unlock_set_fmt(state);
- goto out;
- }
- state_cnt = cnt;
- }
- unlock_set_fmt(state);
-
- swptr = (swptr + state_cnt) % dmabuf->dmasize;
-
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count += state_cnt;
- dmabuf->endcleared = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_dac(state);
- }
- out:
- up(&state->sem);
- return ret;
- }
- /* No kernel lock - we have our own spinlock */
- static unsigned int trident_poll(struct file *file, struct poll_table_struct *wait)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned int mask = 0;
- VALIDATE_STATE(state);
- /*
- * Guard against a parallel poll and write causing multiple
- * prog_dmabuf events
- */
-
- down(&state->sem);
- if (file->f_mode & FMODE_WRITE) {
- if (!dmabuf->ready && prog_dmabuf(state, 0))
- {
- up(&state->sem);
- return 0;
- }
- poll_wait(file, &dmabuf->wait, wait);
- }
- if (file->f_mode & FMODE_READ) {
- if (!dmabuf->ready && prog_dmabuf(state, 1))
- {
- up(&state->sem);
- return 0;
- }
- poll_wait(file, &dmabuf->wait, wait);
- }
- up(&state->sem);
-
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- if (file->f_mode & FMODE_READ) {
- if (dmabuf->count >= (signed)dmabuf->fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (dmabuf->mapped) {
- if (dmabuf->count >= (signed)dmabuf->fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed)dmabuf->dmasize >= dmabuf->count + (signed)dmabuf->fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
- spin_unlock_irqrestore(&state->card->lock, flags);
- return mask;
- }
- static int trident_mmap(struct file *file, struct vm_area_struct *vma)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- int ret = -EINVAL;
- unsigned long size;
- VALIDATE_STATE(state);
- lock_kernel();
-
- /*
- * Lock against poll read write or mmap creating buffers. Also lock
- * a read or write against an mmap.
- */
-
- down(&state->sem);
-
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf(state, 0)) != 0)
- goto out;
- } else if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf(state, 1)) != 0)
- goto out;
- } else
- goto out;
- ret = -EINVAL;
- if (vma->vm_pgoff != 0)
- goto out;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << dmabuf->buforder))
- goto out;
- ret = -EAGAIN;
- if (remap_page_range(vma->vm_start, virt_to_phys(dmabuf->rawbuf),
- size, vma->vm_page_prot))
- goto out;
- dmabuf->mapped = 1;
- ret = 0;
- out:
- up(&state->sem);
- unlock_kernel();
- return ret;
- }
- static int trident_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret = 0;
- struct trident_card *card = state->card;
- VALIDATE_STATE(state);
- mapped = ((file->f_mode & FMODE_WRITE) && dmabuf->mapped) ||
- ((file->f_mode & FMODE_READ) && dmabuf->mapped);
- #ifdef DEBUG
- printk("trident: trident_ioctl, command = %2d, arg = 0x%08xn",
- _IOC_NR(cmd), arg ? *(int *)arg : 0);
- #endif
- switch (cmd)
- {
- case OSS_GETVERSION:
- ret = put_user(SOUND_VERSION, (int *)arg);
- break;
-
- case SNDCTL_DSP_RESET:
- /* FIXME: spin_lock ? */
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- synchronize_irq();
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- synchronize_irq();
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- }
- break;
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- ret = drain_dac(state, file->f_flags & O_NONBLOCK);
- break;
- case SNDCTL_DSP_SPEED: /* set smaple rate */
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- if (val >= 0) {
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- trident_set_dac_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- trident_set_adc_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- }
- ret = put_user(dmabuf->rate, (int *)arg);
- break;
- case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- lock_set_fmt(state);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- if (val)
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val)
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- }
- unlock_set_fmt(state);
- break;
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf(state, 0)))
- ret = val;
- else
- ret = put_user(dmabuf->fragsize, (int *)arg);
- break;
- }
- if (file->f_mode & FMODE_READ) {
- if ((val = prog_dmabuf(state, 1)))
- ret = val;
- else
- ret = put_user(dmabuf->fragsize, (int *)arg);
- break;
- }
- case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/
- ret = put_user(AFMT_S16_LE|AFMT_U16_LE|AFMT_S8|AFMT_U8, (int *)arg);
- break;
- case SNDCTL_DSP_SETFMT: /* Select sample format */
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- lock_set_fmt(state);
- if (val != AFMT_QUERY) {
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- if (val == AFMT_S16_LE)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val == AFMT_S16_LE)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
- }
- }
- unlock_set_fmt(state);
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ?
- AFMT_S16_LE : AFMT_U8, (int *)arg);
- break;
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- if (val != 0) {
- lock_set_fmt(state);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
-
- //prevent from memory leak
- if ((state->chans_num > 2) && (state->chans_num != val)) {
- ali_free_other_states_resources(state);
- state->chans_num = 1;
- }
-
- if (val >= 2)
- {
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- if ((val == 6) && (state->card->pci_id == PCI_DEVICE_ID_ALI_5451)) {
- if( card->rec_channel_use_count > 0 )
- {
- printk(KERN_ERR "trident: Record is working on the card!n");
- ret = -EBUSY;
- break;
- }
- ret = ali_setup_multi_channels(state->card, 6);
- if (ret < 0) {
- unlock_set_fmt(state);
- break;
- }
- down(&state->card->open_sem);
- ret = ali_allocate_other_states_resources(state, 6);
- if (ret < 0) {
- up(&state->card->open_sem);
- unlock_set_fmt(state);
- break;
- }
- state->card->multi_channel_use_count ++;
- up(&state->card->open_sem);
- }
- else val = 2; /*yield to 2-channels*/
- }
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- state->chans_num = val;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val >= 2) {
- if (!((file->f_mode & FMODE_WRITE) && (val == 6)))
- val = 2;
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- }
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- state->chans_num = val;
- }
- unlock_set_fmt(state);
- }
- ret = put_user(val, (int *)arg);
- break;
- case SNDCTL_DSP_POST:
- /* Cause the working fragment to be output */
- break;
- case SNDCTL_DSP_SUBDIVIDE:
- if (dmabuf->subdivision)
- {
- ret = -EINVAL;
- break;
- }
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- if (val != 1 && val != 2 && val != 4)
- {
- ret = -EINVAL;
- break;
- }
- dmabuf->subdivision = val;
- break;
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- dmabuf->ossfragshift = val & 0xffff;
- dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
- if (dmabuf->ossfragshift < 4)
- dmabuf->ossfragshift = 4;
- if (dmabuf->ossfragshift > 15)
- dmabuf->ossfragshift = 15;
- if (dmabuf->ossmaxfrags < 4)
- dmabuf->ossmaxfrags = 4;
- break;
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- abinfo.fragsize = dmabuf->fragsize;
- abinfo.bytes = dmabuf->dmasize - dmabuf->count;
- abinfo.fragstotal = dmabuf->numfrag;
- abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
- break;
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
- {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- abinfo.fragsize = dmabuf->fragsize;
- abinfo.bytes = dmabuf->count;
- abinfo.fragstotal = dmabuf->numfrag;
- abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
- break;
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- break;
- case SNDCTL_DSP_GETCAPS:
- ret = put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP|DSP_CAP_BIND,
- (int *)arg);
- break;
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if ((file->f_mode & FMODE_READ) && dmabuf->enable)
- val |= PCM_ENABLE_INPUT;
- if ((file->f_mode & FMODE_WRITE) && dmabuf->enable)
- val |= PCM_ENABLE_OUTPUT;
- ret = put_user(val, (int *)arg);
- break;
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
- break;
- start_adc(state);
- } else
- stop_adc(state);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
- break;
- start_dac(state);
- } else
- stop_dac(state);
- }
- break;
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
- {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
- cinfo.ptr = dmabuf->hwptr;
- if (dmabuf->mapped)
- dmabuf->count &= dmabuf->fragsize-1;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
- break;
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- {
- ret = val;
- break;
- }
-
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
- cinfo.ptr = dmabuf->hwptr;
- if (dmabuf->mapped)
- dmabuf->count &= dmabuf->fragsize-1;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user((void *)arg, &cinfo, sizeof(cinfo))?-EFAULT:0;
- break;
- case SNDCTL_DSP_SETDUPLEX:
- ret = -EINVAL;
- break;
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
- {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- val = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = put_user(val, (int *)arg);
- break;
- case SOUND_PCM_READ_RATE:
- ret = put_user(dmabuf->rate, (int *)arg);
- break;
- case SOUND_PCM_READ_CHANNELS:
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1,
- (int *)arg);
- break;
- case SOUND_PCM_READ_BITS:
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ?
- AFMT_S16_LE : AFMT_U8, (int *)arg);
- break;
- case SNDCTL_DSP_GETCHANNELMASK:
- ret = put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE,
- (int *)arg);
- break;
- case SNDCTL_DSP_BIND_CHANNEL:
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018)
- {
- ret = -EINVAL;
- break;
- }
- if (get_user(val, (int *)arg))
- {
- ret = -EFAULT;
- break;
- }
- if (val == DSP_BIND_QUERY) {
- val = dmabuf->channel->attribute | 0x3c00;
- val = attr2mask[val >> 8];
- } else {
- dmabuf->ready = 0;
- if (file->f_mode & FMODE_READ)
- dmabuf->channel->attribute = (CHANNEL_REC|SRC_ENABLE);
- if (file->f_mode & FMODE_WRITE)
- dmabuf->channel->attribute = (CHANNEL_SPC_PB|SRC_ENABLE);
- dmabuf->channel->attribute |= mask2attr[ffs(val)];
- }
- ret = put_user(val, (int *)arg);
- break;
- case SNDCTL_DSP_MAPINBUF:
- case SNDCTL_DSP_MAPOUTBUF:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_WRITE_FILTER:
- case SOUND_PCM_READ_FILTER:
- default:
- ret = -EINVAL;
- break;
-
- }
- return ret;
- }
- static int trident_open(struct inode *inode, struct file *file)
- {
- int i = 0;
- int minor = MINOR(inode->i_rdev);
- struct trident_card *card = devs;
- struct trident_state *state = NULL;
- struct dmabuf *dmabuf = NULL;
-
- /* Added by Matt Wu 01-05-2001 */
- if(file->f_mode & FMODE_READ)
- {
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if (card->multi_channel_use_count > 0)
- return -EBUSY;
- }
- }
- /* find an available virtual channel (instance of /dev/dsp) */
- while (card != NULL) {
- down(&card->open_sem);
- if(file->f_mode & FMODE_READ)
- {
- /* Skip opens on cards that are in 6 channel mode */
- if (card->multi_channel_use_count > 0)
- {
- up(&card->open_sem);
- card = card->next;
- continue;
- }
- }
- for (i = 0; i < NR_HW_CH; i++) {
- if (card->states[i] == NULL) {
- state = card->states[i] = (struct trident_state *)
- kmalloc(sizeof(struct trident_state), GFP_KERNEL);
- if (state == NULL) {
- return -ENOMEM;
- }
- memset(state, 0, sizeof(struct trident_state));
- init_MUTEX(&state->sem);
- dmabuf = &state->dmabuf;
- goto found_virt;
- }
- }
- up(&card->open_sem);
- card = card->next;
- }
- /* no more virtual channel avaiable */
- if (!state) {
- return -ENODEV;
- }
- found_virt:
- /* found a free virtual channel, allocate hardware channels */
- if(file->f_mode & FMODE_READ)
- dmabuf->channel = card->alloc_rec_pcm_channel(card);
- else
- dmabuf->channel = card->alloc_pcm_channel(card);
-
- if (dmabuf->channel == NULL) {
- kfree (card->states[i]);
- card->states[i] = NULL;
- return -ENODEV;
- }
- /* initialize the virtual channel */
- state->virt = i;
- state->card = card;
- state->magic = TRIDENT_STATE_MAGIC;
- init_waitqueue_head(&dmabuf->wait);
- file->private_data = state;
- /* set default sample format. According to OSS Programmer's Guide /dev/dsp
- should be default to unsigned 8-bits, mono, with sample rate 8kHz and
- /dev/dspW will accept 16-bits sample */
- if (file->f_mode & FMODE_WRITE) {
- dmabuf->fmt &= ~TRIDENT_FMT_MASK;
- if ((minor & 0x0f) == SND_DEV_DSP16)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- dmabuf->ossfragshift = 0;
- dmabuf->ossmaxfrags = 0;
- dmabuf->subdivision = 0;
- if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
- /* set default channel attribute to normal playback */
- dmabuf->channel->attribute = CHANNEL_PB;
- }
- trident_set_dac_rate(state, 8000);
- }
- if (file->f_mode & FMODE_READ) {
- /* FIXME: Trident 4d can only record in signed 16-bits stereo, 48kHz sample,
- to be dealed with in trident_set_adc_rate() ?? */
- dmabuf->fmt &= ~TRIDENT_FMT_MASK;
- if ((minor & 0x0f) == SND_DEV_DSP16)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- dmabuf->ossfragshift = 0;
- dmabuf->ossmaxfrags = 0;
- dmabuf->subdivision = 0;
- if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
- /* set default channel attribute to 0x8a80, record from
- PCM L/R FIFO and mono = (left + right + 1)/2*/
- dmabuf->channel->attribute =
- (CHANNEL_REC|PCM_LR|MONO_MIX);
- }
- trident_set_adc_rate(state, 8000);
-
- /* Added by Matt Wu 01-05-2001 */
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451)
- card->rec_channel_use_count ++;
- }
- state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&card->open_sem);
- #ifdef DEBUG
- printk(KERN_ERR "trident: open virtual channel %d, hard channel %dn",
- state->virt, dmabuf->channel->num);
- #endif
- return 0;
- }
- static int trident_release(struct inode *inode, struct file *file)
- {
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct trident_card *card;
- struct dmabuf *dmabuf;
- unsigned long flags;
- lock_kernel();
- card = state->card;
- dmabuf = &state->dmabuf;
- VALIDATE_STATE(state);
- if (file->f_mode & FMODE_WRITE) {
- trident_clear_tail(state);
- drain_dac(state, file->f_flags & O_NONBLOCK);
- }
- #ifdef DEBUG
- printk(KERN_ERR "trident: closing virtual channel %d, hard channel %dn",
- state->virt, dmabuf->channel->num);
- #endif
- /* stop DMA state machine and free DMA buffers/channels */
- down(&card->open_sem);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- lock_set_fmt(state);
- unlock_set_fmt(state);
- dealloc_dmabuf(state);
- state->card->free_pcm_channel(state->card, dmabuf->channel->num);
- /* Added by Matt Wu */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if (state->chans_num > 2) {
- if (card->multi_channel_use_count-- < 0)
- card->multi_channel_use_count = 0;
- if (card->multi_channel_use_count == 0)
- ali_close_multi_channels();
- ali_free_other_states_resources(state);
- }
- }
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dealloc_dmabuf(state);
- state->card->free_pcm_channel(state->card, dmabuf->channel->num);
- /* Added by Matt Wu */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if( card->rec_channel_use_count-- < 0 )
- card->rec_channel_use_count = 0;
- }
- }
- card->states[state->virt] = NULL;
- kfree(state);
- /* we're covered by the open_sem */
- up(&card->open_sem);
- unlock_kernel();
- return 0;
- }
- static /*const*/ struct file_operations trident_audio_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- read: trident_read,
- write: trident_write,
- poll: trident_poll,
- ioctl: trident_ioctl,
- mmap: trident_mmap,
- open: trident_open,
- release: trident_release,
- };
- /* trident specific AC97 functions */
- /* Write AC97 codec registers */
- static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val)
- {
- struct trident_card *card = (struct trident_card *)codec->private_data;
- unsigned int address, mask, busy;
- unsigned short count = 0xffff;
- unsigned long flags;
- u32 data;
- data = ((u32) val) << 16;
- switch (card->pci_id)
- {
- default:
- case PCI_DEVICE_ID_SI_7018:
- address = SI_AC97_WRITE;
- mask = SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- busy = SI_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- address = DX_ACR0_AC97_W;
- mask = busy = DX_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- address = NX_ACR1_AC97_W;
- mask = NX_AC97_BUSY_WRITE;
- if (codec->id)
- mask |= NX_AC97_WRITE_SECONDARY;
- busy = NX_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- address = SI_AC97_WRITE;
- mask = busy = SI_AC97_BUSY_WRITE;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- break;
- }
- spin_lock_irqsave(&card->lock, flags);
- do {
- if ((inw(TRID_REG(card, address)) & busy) == 0)
- break;
- } while (count--);
- data |= (mask | (reg & AC97_REG_ADDR));
- if (count == 0) {
- printk(KERN_ERR "trident: AC97 CODEC write timed out.n");
- spin_unlock_irqrestore(&card->lock, flags);
- return;
- }
- outl(data, TRID_REG(card, address));
- spin_unlock_irqrestore(&card->lock, flags);
- }
- /* Read AC97 codec registers */
- static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg)
- {
- struct trident_card *card = (struct trident_card *)codec->private_data;
- unsigned int address, mask, busy;
- unsigned short count = 0xffff;
- unsigned long flags;
- u32 data;
- switch (card->pci_id)
- {
- default:
- case PCI_DEVICE_ID_SI_7018:
- address = SI_AC97_READ;
- mask = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- busy = SI_AC97_BUSY_READ;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- address = DX_ACR1_AC97_R;
- mask = busy = DX_AC97_BUSY_READ;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- if (codec->id)
- address = NX_ACR3_AC97_R_SECONDARY;
- else
- address = NX_ACR2_AC97_R_PRIMARY;
- mask = NX_AC97_BUSY_READ;
- busy = NX_AC97_BUSY_READ | NX_AC97_BUSY_DATA;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- address = SI_AC97_READ;
- mask = busy = SI_AC97_BUSY_READ;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- break;
- }
- data = (mask | (reg & AC97_REG_ADDR));
- spin_lock_irqsave(&card->lock, flags);
- outl(data, TRID_REG(card, address));
- do {
- data = inl(TRID_REG(card, address));
- if ((data & busy) == 0)
- break;
- } while (count--);
- spin_unlock_irqrestore(&card->lock, flags);
- if (count == 0) {
- printk(KERN_ERR "trident: AC97 CODEC read timed out.n");
- data = 0;
- }
- return ((u16) (data >> 16));
- }
- /* Write AC97 codec registers for ALi*/
- static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val)
- {
- unsigned int address, mask;
- unsigned int wCount1 = 0xffff;
- unsigned int wCount2= 0xffff;
- unsigned long chk1, chk2;
- unsigned long flags;
- u32 data;
- data = ((u32) val) << 16;
- if(!card)
- BUG();
-
- address = ALI_AC97_WRITE;
- mask = ALI_AC97_WRITE_ACTION | ALI_AC97_AUDIO_BUSY;
- if (secondary)
- mask |= ALI_AC97_SECONDARY;
- if (card->revision == ALI_5451_V02)
- mask |= ALI_AC97_WRITE_MIXER_REGISTER;
-
- spin_lock_irqsave(&card->lock, flags);
- while (wCount1--) {
- if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_WRITE) == 0) {
- data |= (mask | (reg & AC97_REG_ADDR));
-
- chk1 = inl(TRID_REG(card, ALI_STIMER));
- chk2 = inl(TRID_REG(card, ALI_STIMER));
- while (wCount2-- && (chk1 == chk2))
- chk2 = inl(TRID_REG(card, ALI_STIMER));
- if (wCount2 == 0) {
- spin_unlock_irqrestore(&card->lock, flags);
- return;
- }
- outl(data, TRID_REG(card, address)); //write!
- spin_unlock_irqrestore(&card->lock, flags);
- return; //success
- }
- inw(TRID_REG(card, address)); //wait for a read cycle
- }
- printk(KERN_ERR "ali: AC97 CODEC write timed out.n");
- spin_unlock_irqrestore(&card->lock, flags);
- return;
- }
- /* Read AC97 codec registers for ALi*/
- static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg)
- {
- unsigned int address, mask;
- unsigned int wCount1 = 0xffff;
- unsigned int wCount2= 0xffff;
- unsigned long chk1, chk2;
- unsigned long flags;
- u32 data;
- if(!card)
- BUG();
- address = ALI_AC97_READ;
- if (card->revision == ALI_5451_V02) {
- address = ALI_AC97_WRITE;
- }
- mask = ALI_AC97_READ_ACTION | ALI_AC97_AUDIO_BUSY;
- if (secondary)
- mask |= ALI_AC97_SECONDARY;
- spin_lock_irqsave(&card->lock, flags);
- data = (mask | (reg & AC97_REG_ADDR));
- while (wCount1--) {
- if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_READ) == 0) {
- chk1 = inl(TRID_REG(card, ALI_STIMER));
- chk2 = inl(TRID_REG(card, ALI_STIMER));
- while (wCount2-- && (chk1 == chk2))
- chk2 = inl(TRID_REG(card, ALI_STIMER));
- if (wCount2 == 0) {
- printk(KERN_ERR "ali: AC97 CODEC read timed out.n");
- spin_unlock_irqrestore(&card->lock, flags);
- return 0;
- }
- outl(data, TRID_REG(card, address)); //read!
- wCount2 = 0xffff;
- while (wCount2--) {
- if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_READ) == 0) {
- data = inl(TRID_REG(card, address));
- spin_unlock_irqrestore(&card->lock, flags);
- return ((u16) (data >> 16));
- }
- }
- }
- inw(TRID_REG(card, address)); //wait a read cycle
- }
- spin_unlock_irqrestore(&card->lock, flags);
- printk(KERN_ERR "ali: AC97 CODEC read timed out.n");
- return 0;
- }
- static void ali_enable_special_channel(struct trident_state *stat)
- {
- struct trident_card *card = stat->card;
- unsigned long s_channels;
-
- s_channels = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- s_channels |= (1<<stat->dmabuf.channel->num);
- outl(s_channels, TRID_REG(card, ALI_GLOBAL_CONTROL));
- }
- static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg)
- {
- int id;
- u16 data;
- struct trident_card *card = NULL;
- /* Added by Matt Wu */
- if (!codec)
- BUG();
-
- card = (struct trident_card *)codec->private_data;
- if(!card->mixer_regs_ready)
- return ali_ac97_get(card, codec->id, reg);
- if(codec->id)
- id = 1;
- else
- id = 0;
- data = card->mixer_regs[reg/2][id];
- return data;
- }
- static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val)
- {
- int id;
- struct trident_card *card;
- /* Added by Matt Wu */
- if (!codec)
- BUG();
-
- card = (struct trident_card *)codec->private_data;
- if (!card->mixer_regs_ready)
- {
- ali_ac97_set(card, codec->id, reg, val);
- return;
- }
- if(codec->id)
- id = 1;
- else
- id = 0;
- card->mixer_regs[reg/2][id] = val;
- ali_ac97_set(card, codec->id, reg, val);
- }
- /*
- flag: ALI_SPDIF_OUT_TO_SPDIF_OUT
- ALI_PCM_TO_SPDIF_OUT
- */
- static void ali_setup_spdif_out(struct trident_card *card, int flag)
- {
- unsigned long spdif;
- unsigned char ch;
- char temp;
- struct pci_dev *pci_dev = NULL;
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev);
- if (pci_dev == NULL)
- return;
- pci_read_config_byte(pci_dev, 0x61, &temp);
- temp |= 0x40;
- pci_write_config_byte(pci_dev, 0x61, temp);
- pci_read_config_byte(pci_dev, 0x7d, &temp);
- temp |= 0x01;
- pci_write_config_byte(pci_dev, 0x7d, temp);
- pci_read_config_byte(pci_dev, 0x7e, &temp);
- temp &= (~0x20);
- temp |= 0x10;
- pci_write_config_byte(pci_dev, 0x7e, temp);
- ch = inb(TRID_REG(card, ALI_SCTRL));
- outb(ch | ALI_SPDIF_OUT_ENABLE, TRID_REG(card, ALI_SCTRL));
- ch = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- outb(ch & ALI_SPDIF_OUT_CH_STATUS, TRID_REG(card, ALI_SPDIF_CTRL));
-
- if (flag & ALI_SPDIF_OUT_TO_SPDIF_OUT) {
- spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_OUT_CH_ENABLE;
- spdif &= ALI_SPDIF_OUT_SEL_SPDIF;
- outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif = inw(TRID_REG(card, ALI_SPDIF_CS));
- if (flag & ALI_SPDIF_OUT_NON_PCM)
- spdif |= 0x0002;
- else spdif &= (~0x0002);
- outw(spdif, TRID_REG(card, ALI_SPDIF_CS));
- }
- else {
- spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_OUT_SEL_PCM;
- outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- }
- }
- static void ali_disable_special_channel(struct trident_card *card, int ch)
- {
- unsigned long sc;
-
- sc = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- sc &= ~(1 << ch);
- outl(sc, TRID_REG(card, ALI_GLOBAL_CONTROL));
- }
- static void ali_disable_spdif_in(struct trident_card *card)
- {
- unsigned long spdif;
-
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif &= (~ALI_SPDIF_IN_SUPPORT);
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
- ali_disable_special_channel(card, ALI_SPDIF_IN_CHANNEL);
- }
- static void ali_setup_spdif_in(struct trident_card *card)
- {
- unsigned long spdif;
- //Set SPDIF IN Supported
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_IN_SUPPORT;
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- //Set SPDIF IN Rec
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_IN_CH_ENABLE;
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- spdif |= ALI_SPDIF_IN_CH_STATUS;
- outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
- /*
- spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- spdif |= ALI_SPDIF_IN_FUNC_ENABLE;
- outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
- */
- }
- static void ali_delay(struct trident_card *card,int interval)
- {
- unsigned long begintimer,currenttimer;
- begintimer = inl(TRID_REG(card, ALI_STIMER));
- currenttimer = inl(TRID_REG(card, ALI_STIMER));
- while (currenttimer < begintimer + interval)
- currenttimer = inl(TRID_REG(card, ALI_STIMER));
- }
- static void ali_detect_spdif_rate(struct trident_card *card)
- {
- u16 wval = 0;
- u16 count = 0;
- u8 bval = 0, R1 = 0, R2 = 0;
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL));
- bval |= 0x02;
- outb(bval,TRID_REG(card,ALI_SPDIF_CTRL));
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1));
- bval |= 0x1F;
- outb(bval,TRID_REG(card,ALI_SPDIF_CTRL + 1));
- while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000)
- {
- count ++;
- ali_delay(card, 6);
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1));
- R1 = bval & 0x1F;
- }
- if (count > 50000)
- {
- printk(KERN_WARNING "trident: Error in ali_detect_spdif_rate!n");
- return;
- }
- count = 0;
- while (count <= 50000)
- {
- count ++;
- ali_delay(card, 6);
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1));
- R2 = bval & 0x1F;
- if(R2 != R1)
- R1 = R2;
- else
- break;
- }
- if (count > 50000)
- {
- printk(KERN_WARNING "trident: Error in ali_detect_spdif_rate!n");
- return;
- }
- switch (R2)
- {
- case 0x0b:
- case 0x0c:
- case 0x0d:
- case 0x0e:
- wval = inw(TRID_REG(card,ALI_SPDIF_CTRL + 2));
- wval &= 0xE0F0;
- wval |= (u16)0x09 << 8 | (u16)0x05;
- outw(wval,TRID_REG(card,ALI_SPDIF_CTRL + 2));
- bval = inb(TRID_REG(card,ALI_SPDIF_CS +3)) & 0xF0;
- outb(bval|0x02,TRID_REG(card,ALI_SPDIF_CS + 3));
- break;
- case 0x12:
- wval = inw(TRID_REG(card,ALI_SPDIF_CTRL + 2));
- wval &= 0xE0F0;
- wval |= (u16)0x0E << 8 | (u16)0x08;
- outw(wval,TRID_REG(card,ALI_SPDIF_CTRL + 2));
- bval = inb(TRID_REG(card,ALI_SPDIF_CS +3)) & 0xF0;
- outb(bval|0x03,TRID_REG(card,ALI_SPDIF_CS + 3));
- break;
- default:
- break;
- }
- }
- static unsigned int ali_get_spdif_in_rate(struct trident_card *card)
- {
- u32 dwRate = 0;
- u8 bval = 0;
- ali_detect_spdif_rate(card);
- bval = inb(TRID_REG(card,ALI_SPDIF_CTRL));
- bval &= 0x7F;
- bval |= 0x40;
- outb(bval,TRID_REG(card,ALI_SPDIF_CTRL));
- bval = inb(TRID_REG(card,ALI_SPDIF_CS + 3));
- bval &= 0x0F;
- switch (bval)
- {
- case 0:
- dwRate = 44100;
- break;
- case 1:
- dwRate = 48000;
- break;
- case 2:
- dwRate = 32000;
- break;
- default:
- // Error occurs
- break;
- }
- return dwRate;
-
- }
- static int ali_close_multi_channels(void)
- {
- char temp = 0;
- struct pci_dev *pci_dev = NULL;
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL,PCI_DEVICE_ID_AL_M1533, pci_dev);
- if (pci_dev == NULL)
- return -1;
- temp = 0x80;
- pci_write_config_byte(pci_dev, 0x59, ~temp);
-
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, pci_dev);
- if (pci_dev == NULL)
- return -1;
- temp = 0x20;
- pci_write_config_byte(pci_dev, 0xB8, ~temp);
- return 0;
- }
- static int ali_setup_multi_channels(struct trident_card *card, int chan_nums)
- {
- unsigned long dwValue;
- char temp = 0;
- struct pci_dev *pci_dev = NULL;
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev);
- if (pci_dev == NULL)
- return -1;
- temp = 0x80;
- pci_write_config_byte(pci_dev, 0x59, temp);
-
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, pci_dev);
- if (pci_dev == NULL)
- return -1;
- temp = 0x20;
- pci_write_config_byte(pci_dev, (int)0xB8,(u8) temp);
- if (chan_nums == 6) {
- dwValue = inl(TRID_REG(card, ALI_SCTRL)) | 0x000f0000;
- outl(dwValue, TRID_REG(card, ALI_SCTRL));
- mdelay(4);
- dwValue = inl(TRID_REG(card, ALI_SCTRL));
- if (dwValue & 0x2000000) {
- ali_ac97_write(card->ac97_codec[0], 0x02, 8080);
- ali_ac97_write(card->ac97_codec[0], 0x36, 0);
- ali_ac97_write(card->ac97_codec[0], 0x38, 0);
- ali_ac97_write(card->ac97_codec[1], 0x36, 0);
- ali_ac97_write(card->ac97_codec[1], 0x38, 0);
- ali_ac97_write(card->ac97_codec[1], 0x02, 0x0606);
- ali_ac97_write(card->ac97_codec[1], 0x18, 0x0303);
- ali_ac97_write(card->ac97_codec[1], 0x74, 0x3);
- return 1;
- }
- }
- return -EINVAL;
- }
- static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel)
- {
- int bank;
- if (channel > 31)
- return;
- bank = channel >> 5;
- channel = channel & 0x1f;
- card->banks[bank].bitmap &= ~(1 << (channel));
- }
- static int ali_allocate_other_states_resources(struct trident_state *state, int chan_nums)
- {
- struct trident_card *card = state->card;
- struct trident_state *s;
- int i, state_count = 0;
- struct trident_pcm_bank *bank;
- struct trident_channel *channel;
-
- bank = &card->banks[BANK_A];
-
- if (chan_nums == 6) {
- for(i = 0;(i < ALI_CHANNELS) && (state_count != 4); i++) {
- if (!card->states[i]) {
- if (!(bank->bitmap & (1 << ali_multi_channels_5_1[state_count]))) {
- bank->bitmap |= (1 << ali_multi_channels_5_1[state_count]);
- channel = &bank->channels[ali_multi_channels_5_1[state_count]];
- channel->num = ali_multi_channels_5_1[state_count];
- }
- else {
- state_count--;
- for (; state_count >= 0; state_count--) {
- kfree(state->other_states[state_count]);
- ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]);
- }
- return -EBUSY;
- }
- s = card->states[i] = (struct trident_state *)
- kmalloc(sizeof(struct trident_state), GFP_KERNEL);
- if (!s) {
- ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]);
- state_count--;
- for (; state_count >= 0; state_count--) {
- ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]);
- kfree(state->other_states[state_count]);
- }
- return -ENOMEM;
- }
- memset(s, 0, sizeof(struct trident_state));
-
- s->dmabuf.channel = channel;
- s->dmabuf.ossfragshift = s->dmabuf.ossmaxfrags = s->dmabuf.subdivision = 0;
- init_waitqueue_head(&s->dmabuf.wait);
- s->magic = card->magic;
- s->card = card;
- s->virt = i;
- ali_enable_special_channel(s);
- state->other_states[state_count++] = s;
- }
- }
-
- if (state_count != 4) {
- state_count--;
- for (; state_count >= 0; state_count--) {
- kfree(state->other_states[state_count]);
- ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]);
- }
- return -EBUSY;
- }
- }
- return 0;
- }
- static void ali_save_regs(struct trident_card *card)
- {
- unsigned long flags;
- int i, j;
- save_flags(flags);
- cli();
-
- ali_registers.global_regs[0x2c] = inl(TRID_REG(card,T4D_MISCINT));
- //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A));
- ali_registers.global_regs[0x21] = inl(TRID_REG(card,T4D_STOP_A));
-
- //disable all IRQ bits
- outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT));
-
- for (i = 1; i < ALI_MIXER_REGS; i++)
- ali_registers.mixer_regs[i] = ali_ac97_read (card->ac97_codec[0], i*2);
-
- for (i = 0; i < ALI_GLOBAL_REGS; i++)
- {
- if ((i*4 == T4D_MISCINT) || (i*4 == T4D_STOP_A))
- continue;
- ali_registers.global_regs[i] = inl(TRID_REG(card, i*4));
- }
-
- for (i = 0; i < ALI_CHANNELS; i++)
- {
- outb(i,TRID_REG(card, T4D_LFO_GC_CIR));
- for (j = 0; j < ALI_CHANNEL_REGS; j++)
- ali_registers.channel_regs[i][j] = inl(TRID_REG(card, j*4 + 0xe0));
- }
- //Stop all HW channel
- outl(ALI_STOP_ALL_CHANNELS, TRID_REG(card, T4D_STOP_A));
- restore_flags(flags);
- }
- static void ali_restore_regs(struct trident_card *card)
- {
- unsigned long flags;
- int i, j;
- save_flags(flags);
- cli();
-
- for (i = 1; i < ALI_MIXER_REGS; i++)
- ali_ac97_write(card->ac97_codec[0], i*2, ali_registers.mixer_regs[i]);
-
- for (i = 0; i < ALI_CHANNELS; i++)
- {
- outb(i,TRID_REG(card, T4D_LFO_GC_CIR));
- for (j = 0; j < ALI_CHANNEL_REGS; j++)
- outl(ali_registers.channel_regs[i][j], TRID_REG(card, j*4 + 0xe0));
- }
-
- for (i = 0; i < ALI_GLOBAL_REGS; i++)
- {
- if ((i*4 == T4D_MISCINT) || (i*4 == T4D_STOP_A) || (i*4 == T4D_START_A))
- continue;
- outl(ali_registers.global_regs[i], TRID_REG(card, i*4));
- }
-
- //start HW channel
- outl(ali_registers.global_regs[0x20], TRID_REG(card,T4D_START_A));
- //restore IRQ enable bits
- outl(ali_registers.global_regs[0x2c], TRID_REG(card,T4D_MISCINT));
-
- restore_flags(flags);
- }
- static int trident_suspend(struct pci_dev *dev, u32 unused)
- {
- struct trident_card *card = (struct trident_card *) dev;
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_save_regs(card);
- }
- return 0;
- }
- static int trident_resume(struct pci_dev *dev)
- {
- struct trident_card *card = (struct trident_card *) dev;
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_restore_regs(card);
- }
- return 0;
- }
- static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card)
- {
- struct trident_pcm_bank *bank;
- int idx;
- bank = &card->banks[BANK_A];
-
- if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & (ALI_SPDIF_OUT_CH_ENABLE)) {
- idx = ALI_SPDIF_OUT_CHANNEL;
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
-
- for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST ; idx++) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
- /* no more free channels avaliable */
- // printk(KERN_ERR "ali: no more channels available on Bank A.n");
- return NULL;
- }
- static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card)
- {
- struct trident_pcm_bank *bank;
- int idx;
-
- if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT)
- idx = ALI_SPDIF_IN_CHANNEL;
- else idx = ALI_PCM_IN_CHANNEL;
- bank = &card->banks[BANK_A];
-
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
-
- /* no free recordable channels avaliable */
- // printk(KERN_ERR "ali: no recordable channels available on Bank A.n");
- return NULL;
- }
- static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate)
- {
- unsigned char ch_st_sel;
- unsigned short status_rate;
-
- switch(rate) {
- case 44100:
- status_rate = 0;
- break;
- case 32000:
- status_rate = 0x300;
- break;
- case 48000:
- default:
- status_rate = 0x200;
- break;
- }
-
- ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out
-
- ch_st_sel |= 0x80; //select right
- outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
- outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2));
-
- ch_st_sel &= (~0x80); //select left
- outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
- outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2));
- }
- static void ali_address_interrupt(struct trident_card *card)
- {
- int i, channel;
- struct trident_state *state;
- u32 mask, channel_mask;
-
- mask = trident_get_interrupt_mask (card, 0);
- for (i = 0; i < NR_HW_CH; i++) {
- if ((state = card->states[i]) == NULL)
- continue;
- channel = state->dmabuf.channel->num;
- if ((channel_mask = 1 << channel) & mask) {
- mask &= ~channel_mask;
- trident_ack_channel_interrupt(card, channel);
- udelay(100);
- state->dmabuf.update_flag |= ALI_ADDRESS_INT_UPDATE;
- trident_update_ptr(state);
- }
- }
- if (mask) {
- for (i = 0; i < NR_HW_CH; i++) {
- if (mask & (1 << i)) {
- printk("ali: spurious channel irq %d.n", i);
- trident_ack_channel_interrupt(card, i);
- trident_stop_voice(card, i);
- trident_disable_voice_irq(card, i);
- }
- }
- }
- }
- /* Updating the values of counters of other_states' DMAs without lock
- protection is no harm because all DMAs of multi-channels and interrupt
- depend on a master state's DMA, and changing the counters of the master
- state DMA is protected by a spinlock.
- */
- static int ali_write_5_1(struct trident_state *state, const char *buf, int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt)
- {
-
- struct dmabuf *dmabuf = &state->dmabuf;
- struct dmabuf *dmabuf_temp;
- const char *buffer = buf;
- unsigned swptr, other_dma_nums, sample_s;
- unsigned int i, loop;
-
- other_dma_nums = 4;
- sample_s = sample_size[dmabuf->fmt] >> 1;
- swptr = dmabuf->swptr;
- if ((i = state->multi_channels_adjust_count) > 0) {
- if (i == 1) {
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- i--;
- (*state_cnt) += sample_s;
- state->multi_channels_adjust_count++;
- }
- else i = i - (state->chans_num - other_dma_nums);
- for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- }
- if (cnt_for_multi_channel == 0)
- state->multi_channels_adjust_count += i;
- }
- if (cnt_for_multi_channel > 0) {
- loop = cnt_for_multi_channel / (state->chans_num * sample_s);
- for (i = 0; i < loop; i++) {
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s * 2))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s * 2, *copy_count);
- (*state_cnt) += (sample_s * 2);
-
- dmabuf_temp = &state->other_states[0]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[1]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[2]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[3]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- }
-
- if (cnt_for_multi_channel > 0) {
- state->multi_channels_adjust_count = cnt_for_multi_channel / sample_s;
-
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- (*state_cnt) += sample_s;
-
- if (cnt_for_multi_channel > 0) {
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- (*state_cnt) += sample_s;
-
- if (cnt_for_multi_channel > 0) {
- loop = state->multi_channels_adjust_count - (state->chans_num - other_dma_nums);
- for (i = 0; i < loop; i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count);
- }
- }
- }
- }
- else
- state->multi_channels_adjust_count = 0;
- }
- for (i = 0; i < other_dma_nums; i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- dmabuf_temp->swptr = dmabuf_temp->swptr % dmabuf_temp->dmasize;
- }
- return *state_cnt;
- }
- static void ali_free_other_states_resources(struct trident_state *state)
- {
- int i;
- struct trident_card *card = state->card;
- struct trident_state *s;
- unsigned other_states_count;
-
- other_states_count = state->chans_num - 2; /* except PCM L/R channels*/
- for ( i = 0; i < other_states_count; i++) {
- s = state->other_states[i];
- dealloc_dmabuf(s);
- ali_disable_special_channel(s->card, s->dmabuf.channel->num);
- state->card->free_pcm_channel(s->card, s->dmabuf.channel->num);
- card->states[s->virt] = NULL;
- kfree(s);
- }
- }
- #ifdef CONFIG_PROC_FS
- struct proc_dir_entry *res;
- static int ali_write_proc(struct file *file, const char *buffer, unsigned long count, void *data)
- {
- struct trident_card *card = (struct trident_card *)data;
- unsigned long flags;
- char c;
- if (count<0)
- return -EINVAL;
- if (count == 0)
- return 0;
- if (get_user(c, buffer))
- return -EFAULT;
-
- spin_lock_irqsave(&card->lock, flags);
- switch (c) {
- case '0':
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
- break;
- case '1':
- ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT|ALI_SPDIF_OUT_PCM);
- break;
- case '2':
- ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT|ALI_SPDIF_OUT_NON_PCM);
- break;
- case '3':
- ali_disable_spdif_in(card); //default
- break;
- case '4':
- ali_setup_spdif_in(card);
- break;
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return count;
- }
- #endif
- /* OSS /dev/mixer file operation methods */
- static int trident_open_mixdev(struct inode *inode, struct file *file)
- {
- int i = 0;
- int minor = MINOR(inode->i_rdev);
- struct trident_card *card = devs;
- for (card = devs; card != NULL; card = card->next)
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL &&
- card->ac97_codec[i]->dev_mixer == minor)
- goto match;
- if (!card) {
- return -ENODEV;
- }
- match:
- file->private_data = card->ac97_codec[i];
- return 0;
- }
- static int trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
- {
- struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
- return codec->mixer_ioctl(codec, cmd, arg);
- }
- static /*const*/ struct file_operations trident_mixer_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- ioctl: trident_ioctl_mixdev,
- open: trident_open_mixdev,
- };
- static int ali_reset_5451(struct trident_card *card)
- {
- struct pci_dev *pci_dev = NULL;
- unsigned int dwVal;
- unsigned short wCount, wReg;
- pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev);
- if (pci_dev == NULL)
- return -1;
-
- pci_read_config_dword(pci_dev, 0x7c, &dwVal);
- pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
- udelay(5000);
- pci_read_config_dword(pci_dev, 0x7c, &dwVal);
- pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
- udelay(5000);
- pci_dev = card->pci_dev;
- if (pci_dev == NULL)
- return -1;
- pci_read_config_dword(pci_dev, 0x44, &dwVal);
- pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
- udelay(500);
- pci_read_config_dword(pci_dev, 0x44, &dwVal);
- pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
- udelay(5000);
- wCount = 200;
- while(wCount--) {
- wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
- if((wReg & 0x000f) == 0x000f)
- return 0;
- udelay(500);
- }
- return 0;
- }
- /* AC97 codec initialisation. */
- static int __init trident_ac97_init(struct trident_card *card)
- {
- int num_ac97 = 0;
- unsigned long ready_2nd = 0;
- struct ac97_codec *codec;
- int i = 0;
-
- /* initialize controller side of AC link, and find out if secondary codes
- really exist */
- switch (card->pci_id)
- {
- case PCI_DEVICE_ID_ALI_5451:
- if (ali_reset_5451(card))
- {
- printk(KERN_ERR "trident_ac97_init: error resetting 5451.n");
- return -1;
- }
- outl(0x80000001,TRID_REG(card, ALI_GLOBAL_CONTROL));
- outl(0x00000000,TRID_REG(card, T4D_AINTEN_A));
- outl(0xffffffff,TRID_REG(card, T4D_AINT_A));
- outl(0x00000000,TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
- outb(0x10, TRID_REG(card, ALI_MPUR2));
- ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
- ready_2nd &= 0x3fff;
- outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL));
- ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- if (card->revision < ALI_5451_V02)
- ready_2nd = 0;
- break;
- case PCI_DEVICE_ID_SI_7018:
- /* disable AC97 GPIO interrupt */
- outl(0x00, TRID_REG(card, SI_AC97_GPIO));
- /* when power up the AC link is in cold reset mode so stop it */
- outl(PCMOUT|SURROUT|CENTEROUT|LFEOUT|SECONDARY_ID,
- TRID_REG(card, SI_SERIAL_INTF_CTRL));
- /* it take a long time to recover from a cold reset (especially when you have
- more than one codec) */
- udelay(2000);
- ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- /* playback on */
- outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */
- outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT));
- ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT));
- ready_2nd &= NX_AC97_SECONDARY_READY;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- /* disable AC97 GPIO interrupt */
- outl(0x00, TRID_REG(card, SI_AC97_GPIO));
- /* when power up, the AC link is in cold reset mode, so stop it */
- outl(PCMOUT|SURROUT|CENTEROUT|LFEOUT,
- TRID_REG(card, SI_SERIAL_INTF_CTRL));
- /* it take a long time to recover from a cold reset (especially when you have
- more than one codec) */
- udelay(2000);
- ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- break;
- }
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- if ((codec = kmalloc(sizeof(struct ac97_codec), GFP_KERNEL)) == NULL)
- return -ENOMEM;
- memset(codec, 0, sizeof(struct ac97_codec));
- /* initialize some basic codec information, other fields will be filled
- in ac97_probe_codec */
- codec->private_data = card;
- codec->id = num_ac97;
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- codec->codec_read = ali_ac97_read;
- codec->codec_write = ali_ac97_write;
- }
- else {
- codec->codec_read = trident_ac97_get;
- codec->codec_write = trident_ac97_set;
- }
-
- if (ac97_probe_codec(codec) == 0)
- break;
- if ((codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1)) < 0) {
- printk(KERN_ERR "trident: couldn't register mixer!n");
- kfree(codec);
- break;
- }
- card->ac97_codec[num_ac97] = codec;
- /* if there is no secondary codec at all, don't probe any more */
- if (!ready_2nd)
- break;
- }
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- if (card->ac97_codec[num_ac97] == NULL)
- break;
- for (i=0; i<64;i++)
- card->mixer_regs[i][num_ac97] = ali_ac97_get(card, num_ac97,i*2);
- }
- }
- return num_ac97+1;
- }
- /* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
- until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
- static int __init trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
- {
- unsigned long iobase;
- struct trident_card *card;
- u8 bits;
- u8 revision;
- int i = 0;
- u16 temp;
- struct pci_dev *pci_dev_m1533 = NULL;
- int rc = -ENODEV;
- u64 dma_mask;
- if (pci_enable_device(pci_dev))
- goto out;
- if (pci_dev->device == PCI_DEVICE_ID_ALI_5451)
- dma_mask = ALI_DMA_MASK;
- else
- dma_mask = TRIDENT_DMA_MASK;
- if (pci_set_dma_mask(pci_dev, dma_mask)) {
- printk(KERN_ERR "trident: architecture does not support"
- " %s PCI busmaster DMAn",
- pci_dev->device == PCI_DEVICE_ID_ALI_5451 ?
- "32-bit" : "30-bit");
- goto out;
- }
- pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
- if (pci_id->device == PCI_DEVICE_ID_INTERG_5050)
- iobase = pci_resource_start(pci_dev, 1);
- else
- iobase = pci_resource_start(pci_dev, 0);
- if (!request_region(iobase, 256, card_names[pci_id->driver_data])) {
- printk(KERN_ERR "trident: can't allocate I/O space at 0x%4.4lxn",
- iobase);
- goto out;
- }
- rc = -ENOMEM;
- if ((card = kmalloc(sizeof(struct trident_card), GFP_KERNEL)) == NULL) {
- printk(KERN_ERR "trident: out of memoryn");
- goto out_release_region;
- }
- memset(card, 0, sizeof(*card));
- card->iobase = iobase;
- card->pci_dev = pci_dev;
- card->pci_id = pci_id->device;
- card->revision = revision;
- card->irq = pci_dev->irq;
- card->next = devs;
- card->magic = TRIDENT_CARD_MAGIC;
- card->banks[BANK_A].addresses = &bank_a_addrs;
- card->banks[BANK_A].bitmap = 0UL;
- card->banks[BANK_B].addresses = &bank_b_addrs;
- card->banks[BANK_B].bitmap = 0UL;
- init_MUTEX(&card->open_sem);
- spin_lock_init(&card->lock);
- init_timer(&card->timer);
- devs = card;
- pci_set_master(pci_dev);
- printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %dn",
- card_names[pci_id->driver_data], card->iobase, card->irq);
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- /* ALi channel Management */
- card->alloc_pcm_channel = ali_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
- card->free_pcm_channel = ali_free_pcm_channel;
-
- card->address_interrupt = ali_address_interrupt;
- /* Added by Matt Wu 01-05-2001 for spdif in */
- card->multi_channel_use_count = 0;
- card->rec_channel_use_count = 0;
- /* ALi SPDIF OUT function */
- if(card->revision == ALI_5451_V02) {
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- #ifdef CONFIG_PROC_FS
- res = create_proc_entry("ALi5451", 0, NULL);
- if (res) {
- res->write_proc = ali_write_proc;
- res->data = card;
- }
- #endif
- }
- /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
- card->hwvolctl = 0;
- pci_dev_m1533 = pci_find_device(PCI_VENDOR_ID_AL,PCI_DEVICE_ID_AL_M1533, pci_dev_m1533);
- rc = -ENODEV;
- if (pci_dev_m1533 == NULL)
- goto out_proc_fs;
- pci_read_config_byte(pci_dev_m1533, 0x63, &bits);
- if (bits & (1<<5))
- card->hwvolctl = 1;
- if (card->hwvolctl)
- {
- /* Clear m1533 pci cfg 78h bit 30 to zero, which makes
- GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */
- pci_read_config_byte(pci_dev_m1533, 0x7b, &bits);
- bits &= 0xbf; /*clear bit 6 */
- pci_write_config_byte(pci_dev_m1533, 0x7b, bits);
- }
- }
- else if(card->pci_id == PCI_DEVICE_ID_INTERG_5050)
- {
- card->alloc_pcm_channel = cyber_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel;
- card->free_pcm_channel = cyber_free_pcm_channel;
- card->address_interrupt = cyber_address_interrupt;
- cyber_init_ritual(card);
- }
- else
- {
- card->alloc_pcm_channel = trident_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = trident_alloc_pcm_channel;
- card->free_pcm_channel = trident_free_pcm_channel;
- card->address_interrupt = trident_address_interrupt;
- }
- /* claim our irq */
- rc = -ENODEV;
- if (request_irq(card->irq, &trident_interrupt, SA_SHIRQ,
- card_names[pci_id->driver_data], card)) {
- printk(KERN_ERR "trident: unable to allocate irq %dn", card->irq);
- goto out_proc_fs;
- }
- /* register /dev/dsp */
- if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) {
- printk(KERN_ERR "trident: couldn't register DSP device!n");
- goto out_free_irq;
- }
- card->mixer_regs_ready = 0;
- /* initialize AC97 codec and register /dev/mixer */
- if (trident_ac97_init(card) <= 0) {
- /* unregister audio devices */
- for (i = 0; i < NR_AC97; i++) {
- if (card->ac97_codec[i] != NULL) {
- unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
- kfree (card->ac97_codec[i]);
- }
- }
- goto out_unregister_sound_dsp;
- }
- card->mixer_regs_ready = 1;
- outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
- if(card->hwvolctl)
- {
- /* Enable GPIO IRQ (MISCINT bit 18h)*/
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp |= 0x0004;
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
- /* Enable H/W Volume Control GLOVAL CONTROL bit 0*/
- temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- temp |= 0x0001;
- outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL));
- }
- if(card->revision == ALI_5451_V02)
- ali_close_multi_channels();
- /* edited by HMSEO for GT sound */
- #if defined CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC
- {
- u16 ac97_data;
- extern struct hwrpb_struct *hwrpb;
-
- if ((hwrpb->sys_type) == 201) {
- printk(KERN_INFO "trident: Running on Alpha system type Nautilusn");
- ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
- ali_ac97_set(card, 0, AC97_POWER_CONTROL, ac97_data | ALI_EAPD_POWER_DOWN);
- }
- }
- #endif
- /* edited by HMSEO for GT sound*/
- }
- rc = 0;
- pci_set_drvdata(pci_dev, card);
- /* Enable Address Engine Interrupts */
- trident_enable_loop_interrupts(card);
- out: return rc;
- out_unregister_sound_dsp:
- unregister_sound_dsp(card->dev_audio);
- out_free_irq:
- free_irq(card->irq, card);
- out_proc_fs:
- #ifdef CONFIG_PROC_FS
- if (res) {
- remove_proc_entry("ALi5451", NULL);
- res = NULL;
- }
- #endif
- kfree(card);
- devs = NULL;
- out_release_region:
- release_region(iobase, 256);
- goto out;
- }
- static void __devexit trident_remove(struct pci_dev *pci_dev)
- {
- int i;
- struct trident_card *card = pci_get_drvdata(pci_dev);
- /*
- * Kill running timers before unload. We can't have them
- * going off after rmmod!
- */
- if(card->hwvolctl)
- del_timer_sync(&card->timer);
-
- /* ALi S/PDIF and Power Management */
- if(card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
- ali_disable_spdif_in(card);
- #ifdef CONFIG_PROC_FS
- remove_proc_entry("ALi5451", NULL);
- #endif
- }
- /* Kill interrupts, and SP/DIF */
- trident_disable_loop_interrupts(card);
- /* free hardware resources */
- free_irq(card->irq, card);
- release_region(card->iobase, 256);
- /* unregister audio devices */
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL) {
- unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
- kfree (card->ac97_codec[i]);
- }
- unregister_sound_dsp(card->dev_audio);
- kfree(card);
- pci_set_drvdata(pci_dev, NULL);
- }
- MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee");
- MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI Audio Driver");
- MODULE_LICENSE("GPL");
- #define TRIDENT_MODULE_NAME "trident"
- static struct pci_driver trident_pci_driver = {
- name: TRIDENT_MODULE_NAME,
- id_table: trident_pci_tbl,
- probe: trident_probe,
- remove: __devexit_p(trident_remove),
- suspend: trident_suspend,
- resume: trident_resume
- };
- static int __init trident_init_module (void)
- {
- if (!pci_present()) /* No PCI bus in this machine! */
- return -ENODEV;
- printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro 5050 PCI Audio, version "
- DRIVER_VERSION ", " __TIME__ " " __DATE__ "n");
- if (!pci_register_driver(&trident_pci_driver)) {
- pci_unregister_driver(&trident_pci_driver);
- return -ENODEV;
- }
- return 0;
- }
- static void __exit trident_cleanup_module (void)
- {
- pci_unregister_driver(&trident_pci_driver);
- }
- module_init(trident_init_module);
- module_exit(trident_cleanup_module);