2 * OSS driver for Linux 2.[46].x for
7 * Tvia/IGST CyberPro 5050
9 * Driver: Alan Cox <alan@redhat.com>
12 * Low level code: <audio@tridentmicro.com> from ALSA
13 * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
14 * Extended by: Zach Brown <zab@redhat.com>
17 * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
18 * Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support
19 * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support
20 * Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support
21 * Peter Wächtler <pwaechtler@loewe-komp.de> CyberPro5050 support
22 * Muli Ben-Yehuda <mulix@mulix.org>
25 * This program is free software; you can redistribute it and/or modify
26 * it under the terms of the GNU General Public License as published by
27 * the Free Software Foundation; either version 2 of the License, or
28 * (at your option) any later version.
30 * This program is distributed in the hope that it will be useful,
31 * but WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33 * GNU General Public License for more details.
35 * You should have received a copy of the GNU General Public License
36 * along with this program; if not, write to the Free Software
37 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
41 * January 3 2004 Eugene Teo <eugeneteo@eugeneteo.net>
42 * minor cleanup to use pr_debug instead of TRDBG since it is already
43 * defined in linux/kernel.h.
45 * December 29 2003 Muli Ben-Yehuda <mulix@mulix.org>
46 * major cleanup for 2.6, fix a few error patch buglets
47 * with returning without properly cleaning up first,
48 * get rid of lock_kernel().
50 * Sept 10 2002 Pascal Schmidt <der.eremit@email.de>
51 * added support for ALi 5451 joystick port
53 * Sept 05 2002 Alan Cox <alan@redhat.com>
54 * adapt to new pci joystick attachment interface
56 * July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
57 * patch from Eric Lemar (via Ian Soboroff): in suspend and resume,
58 * fix wrong cast from pci_dev* to struct trident_card*.
60 * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
61 * rewrite the DMA buffer allocation/deallcoation functions, to make it
62 * modular and fix a bug where we would call free_pages on memory
63 * obtained with pci_alloc_consistent. Also remove unnecessary #ifdef
64 * CONFIG_PROC_FS and various other cleanups.
66 * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
67 * made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming
68 * my syslog with hundreds of messages.
70 * July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
71 * Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle
72 * and the coding style used in the rest of the file.
74 * June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
75 * add a missing unlock_set_fmt, remove a superflous lock/unlock pair
76 * with nothing in between.
78 * June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
79 * use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns
80 * per line, use 'do {} while (0)' in statement macros.
82 * June 6 2002 Lei Hu <Lei_hu@ali.com.tw>
83 * rewrite the part to read/write registers of audio codec for Ali5451
85 * January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport
86 * support to avoid resource conflict with pcigame.c
88 * October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
89 * use set_current_state, properly release resources on failure in
90 * trident_probe, get rid of check_region
92 * August 10 2001 Peter Wächtler <pwaechtler@loewe-komp.de>
93 * added support for Tvia (formerly Integraphics/IGST) CyberPro5050
94 * this chip is often found in settop boxes (combined video+audio)
96 * Switch to static inline not extern inline (gcc 3)
99 * 0.14.9 crashed on rmmod due to a timer/bh left running. Simplified
100 * the existing logic (the BH doesn't help as ac97 is lock_irqsave)
101 * and used del_timer_sync to clean up
102 * Fixed a problem where the ALi change broke my generic card
104 * Jul 10 2001 Matt Wu
105 * Add H/W Volume Control
107 * July 7 2001 Alan Cox
108 * Moved Matt Wu's ac97 register cache into the card structure
110 * Apr 30 2001 Matt Wu
111 * Set EBUF1 and EBUF2 to still mode
112 * Add dc97/ac97 reset function
113 * Fix power management: ali_restore_regs
115 * Mar 09 2001 Matt Wu
116 * Add cache for ac97 access
118 * Feb 06 2001 Matt Wu
119 * Fix ac97 initialization
120 * Fix bug: an extra tail will be played when playing
121 * Jan 05 2001 Matt Wu
122 * Implement multi-channels and S/PDIF in support for ALi 1535+
124 * Nov 1 2000 Ching-Ling Lee
125 * Fix the bug of memory leak when switching 5.1-channels to 2 channels.
126 * Add lock protection into dynamic changing format of data.
127 * Oct 18 2000 Ching-Ling Lee
128 * 5.1-channels support for ALi
129 * June 28 2000 Ching-Ling Lee
130 * S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user
131 * Simple Power Management support for ALi
132 * v0.14.5 May 23 2000 Ollie Lho
133 * Misc bug fix from the Net
134 * v0.14.4 May 20 2000 Aaron Holtzman
135 * Fix kfree'd memory access in release
136 * Fix race in open while looking for a free virtual channel slot
137 * remove open_wait wq (which appears to be unused)
138 * v0.14.3 May 10 2000 Ollie Lho
139 * fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU
140 * v0.14.2 Mar 29 2000 Ching-Ling Lee
141 * Add clear to silence advance in trident_update_ptr
142 * fix invalid data of the end of the sound
143 * v0.14.1 Mar 24 2000 Ching-Ling Lee
144 * ALi 5451 support added, playback and recording O.K.
145 * ALi 5451 originally developed and structured based on sonicvibes, and
146 * suggested to merge into this file by Alan Cox.
147 * v0.14 Mar 15 2000 Ollie Lho
148 * 5.1 channel output support with channel binding. What's the Matrix ?
149 * v0.13.1 Mar 10 2000 Ollie Lho
150 * few minor bugs on dual codec support, needs more testing
151 * v0.13 Mar 03 2000 Ollie Lho
152 * new pci_* for 2.4 kernel, back ported to 2.2
153 * v0.12 Feb 23 2000 Ollie Lho
154 * Preliminary Recording support
155 * v0.11.2 Feb 19 2000 Ollie Lho
156 * removed incomplete full-dulplex support
157 * v0.11.1 Jan 28 2000 Ollie Lho
158 * small bug in setting sample rate for 4d-nx (reported by Aaron)
159 * v0.11 Jan 27 2000 Ollie Lho
160 * DMA bug, scheduler latency, second try
161 * v0.10 Jan 24 2000 Ollie Lho
162 * DMA bug fixed, found kernel scheduling problem
163 * v0.09 Jan 20 2000 Ollie Lho
164 * Clean up of channel register access routine (prepare for channel binding)
165 * v0.08 Jan 14 2000 Ollie Lho
166 * Isolation of AC97 codec code
167 * v0.07 Jan 13 2000 Ollie Lho
168 * Get rid of ugly old low level access routines (e.g. CHRegs.lp****)
169 * v0.06 Jan 11 2000 Ollie Lho
170 * Preliminary support for dual (more ?) AC97 codecs
171 * v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com>
172 * adapt to 2.3.x new __setup/__init call
173 * v0.04 Dec 31 1999 Ollie Lho
174 * Multiple Open, using Middle Loop Interrupt to smooth playback
175 * v0.03 Dec 24 1999 Ollie Lho
176 * mem leak in prog_dmabuf and dealloc_dmabuf removed
177 * v0.02 Dec 15 1999 Ollie Lho
178 * SiS 7018 support added, playback O.K.
179 * v0.01 Alan Cox et. al.
180 * Initial Release in kernel 2.3.30, does not work
183 * Clean up of low level channel register access code. (done)
184 * Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done)
185 * Dual AC97 codecs support (done)
186 * Recording support (done)
188 * "Channel Binding" ioctl extension (done)
189 * new pci device driver interface for 2.4 kernel (done)
191 * Lock order (high->low)
192 * lock - hardware lock
193 * open_sem - guard opens
194 * sem - guard dmabuf, write re-entry etc
197 #include <linux/config.h>
198 #include <linux/module.h>
199 #include <linux/string.h>
200 #include <linux/ctype.h>
201 #include <linux/ioport.h>
202 #include <linux/sched.h>
203 #include <linux/delay.h>
204 #include <linux/sound.h>
205 #include <linux/slab.h>
206 #include <linux/soundcard.h>
207 #include <linux/pci.h>
208 #include <linux/init.h>
209 #include <linux/poll.h>
210 #include <linux/spinlock.h>
211 #include <linux/smp_lock.h>
212 #include <linux/ac97_codec.h>
213 #include <linux/bitops.h>
214 #include <linux/proc_fs.h>
215 #include <linux/interrupt.h>
216 #include <linux/pm.h>
217 #include <linux/gameport.h>
218 #include <linux/kernel.h>
219 #include <asm/uaccess.h>
223 #if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
224 #include <asm/hwrpb.h>
229 #define DRIVER_VERSION "0.14.10j-2.6"
231 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
232 #define SUPPORT_JOYSTICK 1
235 /* magic numbers to protect our data structures */
236 #define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
237 #define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */
239 #define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */
240 #define ALI_DMA_MASK 0x7fffffff /* ALI Tridents have 31-bit DMA. Wow. */
244 /* maximum number of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
245 have 2 SDATA_IN lines (currently) */
248 /* minor number of /dev/swmodem (temporary, experimental) */
249 #define SND_DEV_SWMODEM 7
251 static const unsigned ali_multi_channels_5_1[] = {
252 /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL, */
255 ALI_SURR_LEFT_CHANNEL,
256 ALI_SURR_RIGHT_CHANNEL
259 static const unsigned sample_size[] = { 1, 2, 2, 4 };
260 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
262 static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n";
272 static char *card_names[] = {
275 "SiS 7018 PCI Audio",
276 "ALi Audio Accelerator",
277 "Tvia/IGST CyberPro 5050"
280 static struct pci_device_id trident_pci_tbl[] = {
281 {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX,
282 PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_DX},
283 {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX,
284 PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_NX},
285 {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018,
286 PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7018},
287 {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451,
288 PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI_5451},
289 {PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050,
290 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CYBER5050},
294 MODULE_DEVICE_TABLE(pci, trident_pci_tbl);
296 /* "software" or virtual channel, an instance of opened /dev/dsp */
297 struct trident_state {
299 struct trident_card *card; /* Card info */
304 /* virtual channel number */
308 /* wave sample stuff */
310 unsigned char fmt, enable;
312 /* hardware channel */
313 struct trident_channel *channel;
315 /* OSS buffer management stuff */
317 dma_addr_t dma_handle;
322 /* our buffer acts like a circular ring */
323 unsigned hwptr; /* where dma last started, updated by update_ptr */
324 unsigned swptr; /* where driver last clear/filled, updated by read/write */
325 int count; /* bytes to be comsumed or been generated by dma machine */
326 unsigned total_bytes; /* total bytes dmaed by hardware */
328 unsigned error; /* number of over/underruns */
329 /* put process on wait queue when no more space in buffer */
330 wait_queue_head_t wait;
332 /* redundant, but makes calculations easier */
335 unsigned fragsamples;
340 unsigned endcleared:1;
341 unsigned update_flag;
342 unsigned ossfragshift;
344 unsigned subdivision;
349 struct trident_state *other_states[4];
350 int multi_channels_adjust_count;
352 unsigned long fmt_flag;
353 /* Guard against mmap/write/read races */
354 struct semaphore sem;
358 /* hardware channels */
359 struct trident_channel {
360 int num; /* channel number */
361 u32 lba; /* Loop Begine Address, where dma buffer starts */
362 u32 eso; /* End Sample Offset, wehre dma buffer ends */
363 /* (in the unit of samples) */
364 u32 delta; /* delta value, sample rate / 48k for playback, */
365 /* 48k/sample rate for recording */
366 u16 attribute; /* control where PCM data go and come */
368 u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
371 struct trident_pcm_bank_address {
378 static struct trident_pcm_bank_address bank_a_addrs = {
385 static struct trident_pcm_bank_address bank_b_addrs = {
392 struct trident_pcm_bank {
393 /* register addresses to control bank operations */
394 struct trident_pcm_bank_address *addresses;
395 /* each bank has 32 channels */
396 u32 bitmap; /* channel allocation bitmap */
397 struct trident_channel channels[32];
400 struct trident_card {
403 /* We keep trident cards in a linked list */
404 struct trident_card *next;
406 /* single open lock mechanism, only used for recording */
407 struct semaphore open_sem;
409 /* The trident has a certain amount of cross channel interaction
410 so we use a single per card lock */
413 /* PCI device stuff */
414 struct pci_dev *pci_dev;
418 /* soundcore stuff */
421 /* structures for abstraction of hardware facilities, codecs, */
422 /* banks and channels */
423 struct ac97_codec *ac97_codec[NR_AC97];
424 struct trident_pcm_bank banks[NR_BANKS];
425 struct trident_state *states[NR_HW_CH];
427 /* hardware resources */
428 unsigned long iobase;
431 /* Function support */
432 struct trident_channel *(*alloc_pcm_channel) (struct trident_card *);
433 struct trident_channel *(*alloc_rec_pcm_channel) (struct trident_card *);
434 void (*free_pcm_channel) (struct trident_card *, unsigned int chan);
435 void (*address_interrupt) (struct trident_card *);
437 /* Added by Matt Wu 01-05-2001 for spdif in */
438 int multi_channel_use_count;
439 int rec_channel_use_count;
440 u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */
441 int mixer_regs_ready;
443 /* Added for hardware volume control */
445 struct timer_list timer;
447 /* Game port support */
448 struct gameport *gameport;
456 /* table to map from CHANNELMASK to channel attribute for SiS 7018 */
457 static u16 mask2attr[] = {
458 PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
459 HSET, MIC, MODEM_LINE1, MODEM_LINE2,
463 /* table to map from channel attribute to CHANNELMASK for SiS 7018 */
464 static int attr2mask[] = {
465 DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
466 DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
469 /* Added by Matt Wu 01-05-2001 for spdif in */
470 static int ali_close_multi_channels(void);
471 static void ali_delay(struct trident_card *card, int interval);
472 static void ali_detect_spdif_rate(struct trident_card *card);
474 static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
475 static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
477 static struct trident_card *devs;
479 static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
480 static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
482 static int trident_open_mixdev(struct inode *inode, struct file *file);
483 static int trident_ioctl_mixdev(struct inode *inode, struct file *file,
484 unsigned int cmd, unsigned long arg);
486 static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
487 static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
488 static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
489 static void ali_enable_special_channel(struct trident_state *stat);
490 static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
491 static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
492 static void ali_restore_regs(struct trident_card *card);
493 static void ali_save_regs(struct trident_card *card);
494 static int trident_suspend(struct pci_dev *dev, pm_message_t unused);
495 static int trident_resume(struct pci_dev *dev);
496 static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
497 static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
498 static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
499 static void ali_setup_spdif_in(struct trident_card *card);
500 static void ali_disable_spdif_in(struct trident_card *card);
501 static void ali_disable_special_channel(struct trident_card *card, int ch);
502 static void ali_setup_spdif_out(struct trident_card *card, int flag);
503 static int ali_write_5_1(struct trident_state *state,
504 const char __user *buffer,
505 int cnt_for_multi_channel, unsigned int *copy_count,
506 unsigned int *state_cnt);
507 static int ali_allocate_other_states_resources(struct trident_state *state,
509 static void ali_free_other_states_resources(struct trident_state *state);
511 /* save registers for ALi Power Management */
512 static struct ali_saved_registers {
513 unsigned long global_regs[ALI_GLOBAL_REGS];
514 unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
515 unsigned mixer_regs[ALI_MIXER_REGS];
518 #define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) do { \
519 (dma_ptr) += (offset); \
520 (buffer) += (offset); \
522 (copy_count) += (offset); \
525 static inline int lock_set_fmt(struct trident_state* state)
527 if (test_and_set_bit(0, &state->fmt_flag))
533 static inline void unlock_set_fmt(struct trident_state* state)
535 clear_bit(0, &state->fmt_flag);
539 trident_enable_loop_interrupts(struct trident_card *card)
543 global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
545 switch (card->pci_id) {
546 case PCI_DEVICE_ID_SI_7018:
547 global_control |= (ENDLP_IE | MIDLP_IE | BANK_B_EN);
549 case PCI_DEVICE_ID_ALI_5451:
550 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
551 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
552 case PCI_DEVICE_ID_INTERG_5050:
553 global_control |= (ENDLP_IE | MIDLP_IE);
559 outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
561 pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n",
562 inl(TRID_REG(card, T4D_LFO_GC_CIR)));
568 trident_disable_loop_interrupts(struct trident_card *card)
572 global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
573 global_control &= ~(ENDLP_IE | MIDLP_IE);
574 outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
576 pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n",
583 trident_enable_voice_irq(struct trident_card *card, unsigned int channel)
585 unsigned int mask = 1 << (channel & 0x1f);
586 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
587 u32 reg, addr = bank->addresses->aint_en;
589 reg = inl(TRID_REG(card, addr));
591 outl(reg, TRID_REG(card, addr));
594 reg = inl(TRID_REG(card, addr));
595 pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
596 channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
602 trident_disable_voice_irq(struct trident_card *card, unsigned int channel)
604 unsigned int mask = 1 << (channel & 0x1f);
605 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
606 u32 reg, addr = bank->addresses->aint_en;
608 reg = inl(TRID_REG(card, addr));
610 outl(reg, TRID_REG(card, addr));
612 /* Ack the channel in case the interrupt was set before we disable it. */
613 outl(mask, TRID_REG(card, bank->addresses->aint));
616 reg = inl(TRID_REG(card, addr));
617 pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
618 channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
624 trident_start_voice(struct trident_card *card, unsigned int channel)
626 unsigned int mask = 1 << (channel & 0x1f);
627 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
628 u32 addr = bank->addresses->start;
634 outl(mask, TRID_REG(card, addr));
637 reg = inl(TRID_REG(card, addr));
638 pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n",
639 channel, addr == T4D_START_B ? "START_B" : "START_A",
645 trident_stop_voice(struct trident_card *card, unsigned int channel)
647 unsigned int mask = 1 << (channel & 0x1f);
648 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
649 u32 addr = bank->addresses->stop;
655 outl(mask, TRID_REG(card, addr));
658 reg = inl(TRID_REG(card, addr));
659 pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n",
660 channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A",
666 trident_get_interrupt_mask(struct trident_card *card, unsigned int channel)
668 struct trident_pcm_bank *bank = &card->banks[channel];
669 u32 addr = bank->addresses->aint;
670 return inl(TRID_REG(card, addr));
674 trident_check_channel_interrupt(struct trident_card *card, unsigned int channel)
676 unsigned int mask = 1 << (channel & 0x1f);
677 u32 reg = trident_get_interrupt_mask(card, channel >> 5);
681 pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n",
682 channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A",
685 return (reg & mask) ? 1 : 0;
689 trident_ack_channel_interrupt(struct trident_card *card, unsigned int channel)
691 unsigned int mask = 1 << (channel & 0x1f);
692 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
693 u32 reg, addr = bank->addresses->aint;
695 reg = inl(TRID_REG(card, addr));
697 outl(reg, TRID_REG(card, addr));
700 reg = inl(TRID_REG(card, T4D_AINT_B));
701 pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n",
706 static struct trident_channel *
707 trident_alloc_pcm_channel(struct trident_card *card)
709 struct trident_pcm_bank *bank;
712 bank = &card->banks[BANK_B];
714 for (idx = 31; idx >= 0; idx--) {
715 if (!(bank->bitmap & (1 << idx))) {
716 struct trident_channel *channel = &bank->channels[idx];
717 bank->bitmap |= 1 << idx;
718 channel->num = idx + 32;
723 /* no more free channels available */
724 printk(KERN_ERR "trident: no more channels available on Bank B.\n");
729 trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
734 if (channel < 31 || channel > 63)
737 if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
738 card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
739 b = inb(TRID_REG(card, T4D_REC_CH));
740 if ((b & ~0x80) == channel)
741 outb(0x0, TRID_REG(card, T4D_REC_CH));
745 channel = channel & 0x1f;
747 card->banks[bank].bitmap &= ~(1 << (channel));
750 static struct trident_channel *
751 cyber_alloc_pcm_channel(struct trident_card *card)
753 struct trident_pcm_bank *bank;
756 /* The cyberpro 5050 has only 32 voices and one bank */
757 /* .. at least they are not documented (if you want to call that
758 * crap documentation), perhaps broken ? */
760 bank = &card->banks[BANK_A];
762 for (idx = 31; idx >= 0; idx--) {
763 if (!(bank->bitmap & (1 << idx))) {
764 struct trident_channel *channel = &bank->channels[idx];
765 bank->bitmap |= 1 << idx;
771 /* no more free channels available */
772 printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n");
777 cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
781 card->banks[BANK_A].bitmap &= ~(1 << (channel));
785 cyber_outidx(int port, int idx, int data)
788 outb(data, port + 1);
792 cyber_inidx(int port, int idx)
795 return inb(port + 1);
799 cyber_init_ritual(struct trident_card *card)
801 /* some black magic, taken from SDK samples */
802 /* remove this and nothing will work */
808 * Keep interrupts off for the configure - we don't want to
809 * clash with another cyberpro config event
812 spin_lock_irqsave(&card->lock, flags);
813 portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
814 /* enable, if it was disabled */
815 if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
816 printk(KERN_INFO "cyberpro5050: enabling audio controller\n");
817 cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
818 portDat | CYBER_BMSK_AUENZ_ENABLE);
819 /* check again if hardware is enabled now */
820 portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
822 if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
823 printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n");
826 cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE,
827 CYBER_BMSK_AUDIO_INT_ENABLE);
828 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01);
829 cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20);
830 cyber_outidx(CYBER_PORT_AUDIO, 0xbb, 0x08);
831 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x02);
832 cyber_outidx(CYBER_PORT_AUDIO, 0xb3, 0x06);
833 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x00);
835 spin_unlock_irqrestore(&card->lock, flags);
839 /* called with spin lock held */
842 trident_load_channel_registers(struct trident_card *card, u32 * data,
843 unsigned int channel)
850 /* select hardware channel to write */
851 outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
853 /* Output the channel registers, but don't write register
854 three to an ALI chip. */
855 for (i = 0; i < CHANNEL_REGS; i++) {
856 if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
858 outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i));
860 if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
861 card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
862 outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
863 outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
868 /* called with spin lock held */
870 trident_write_voice_regs(struct trident_state *state)
872 unsigned int data[CHANNEL_REGS + 1];
873 struct trident_channel *channel;
875 channel = state->dmabuf.channel;
877 data[1] = channel->lba;
878 data[4] = channel->control;
880 switch (state->card->pci_id) {
881 case PCI_DEVICE_ID_ALI_5451:
882 data[0] = 0; /* Current Sample Offset */
883 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
886 case PCI_DEVICE_ID_SI_7018:
887 case PCI_DEVICE_ID_INTERG_5050:
888 data[0] = 0; /* Current Sample Offset */
889 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
890 data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
892 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
893 data[0] = 0; /* Current Sample Offset */
894 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
895 data[3] = channel->fm_vol & 0xffff;
897 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
898 data[0] = (channel->delta << 24);
899 data[2] = ((channel->delta << 16) & 0xff000000) |
900 (channel->eso & 0x00ffffff);
901 data[3] = channel->fm_vol & 0xffff;
907 return trident_load_channel_registers(state->card, data, channel->num);
911 compute_rate_play(u32 rate)
914 /* We special case 44100 and 8000 since rounding with the equation
915 does not give us an accurate enough value. For 11025 and 22050
916 the equation gives us the best answer. All other frequencies will
917 also use the equation. JDW */
920 else if (rate == 8000)
922 else if (rate == 48000)
925 delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
930 compute_rate_rec(u32 rate)
936 else if (rate == 8000)
938 else if (rate == 48000)
941 delta = ((48000 << 12) / rate) & 0x0000ffff;
946 /* set playback sample rate */
948 trident_set_dac_rate(struct trident_state *state, unsigned int rate)
950 struct dmabuf *dmabuf = &state->dmabuf;
958 dmabuf->channel->delta = compute_rate_play(rate);
960 trident_write_voice_regs(state);
962 pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate);
967 /* set recording sample rate */
969 trident_set_adc_rate(struct trident_state *state, unsigned int rate)
971 struct dmabuf *dmabuf = &state->dmabuf;
979 dmabuf->channel->delta = compute_rate_rec(rate);
981 trident_write_voice_regs(state);
983 pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate);
988 /* prepare channel attributes for playback */
990 trident_play_setup(struct trident_state *state)
992 struct dmabuf *dmabuf = &state->dmabuf;
993 struct trident_channel *channel = dmabuf->channel;
995 channel->lba = dmabuf->dma_handle;
996 channel->delta = compute_rate_play(dmabuf->rate);
998 channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
1001 if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
1002 channel->attribute = 0;
1003 if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
1004 if ((channel->num == ALI_SPDIF_IN_CHANNEL) ||
1005 (channel->num == ALI_PCM_IN_CHANNEL))
1006 ali_disable_special_channel(state->card, channel->num);
1007 else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL))
1008 & ALI_SPDIF_OUT_CH_ENABLE)
1009 && (channel->num == ALI_SPDIF_OUT_CHANNEL)) {
1010 ali_set_spdif_out_rate(state->card,
1011 state->dmabuf.rate);
1012 state->dmabuf.channel->delta = 0x1000;
1017 channel->fm_vol = 0x0;
1019 channel->control = CHANNEL_LOOP;
1020 if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
1022 channel->control |= CHANNEL_16BITS;
1024 channel->control |= CHANNEL_SIGNED;
1026 if (dmabuf->fmt & TRIDENT_FMT_STEREO)
1028 channel->control |= CHANNEL_STEREO;
1030 pr_debug("trident: trident_play_setup, LBA = 0x%08x, Delta = 0x%08x, "
1031 "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
1032 channel->delta, channel->eso, channel->control);
1034 trident_write_voice_regs(state);
1037 /* prepare channel attributes for recording */
1039 trident_rec_setup(struct trident_state *state)
1044 struct trident_card *card = state->card;
1045 struct dmabuf *dmabuf = &state->dmabuf;
1046 struct trident_channel *channel = dmabuf->channel;
1049 /* Enable AC-97 ADC (capture) */
1050 switch (card->pci_id) {
1051 case PCI_DEVICE_ID_ALI_5451:
1052 ali_enable_special_channel(state);
1054 case PCI_DEVICE_ID_SI_7018:
1055 /* for 7018, the ac97 is always in playback/record (duplex) mode */
1057 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
1058 w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT));
1059 outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
1060 /* enable and set record channel */
1061 outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
1063 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
1064 w = inw(TRID_REG(card, T4D_MISCINT));
1065 outw(w | 0x1000, TRID_REG(card, T4D_MISCINT));
1066 /* enable and set record channel */
1067 outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
1069 case PCI_DEVICE_ID_INTERG_5050:
1070 /* don't know yet, using special channel 22 in GC1(0xd4)? */
1076 channel->lba = dmabuf->dma_handle;
1077 channel->delta = compute_rate_rec(dmabuf->rate);
1078 if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) &&
1079 (channel->num == ALI_SPDIF_IN_CHANNEL)) {
1080 rate = ali_get_spdif_in_rate(card);
1082 printk(KERN_WARNING "trident: ALi 5451 "
1083 "S/PDIF input setup error!\n");
1086 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
1088 outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
1089 printk(KERN_WARNING "trident: cleared ALi "
1090 "5451 S/PDIF parity error flag.\n");
1094 channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff;
1097 channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
1100 if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
1101 channel->attribute = 0;
1104 channel->fm_vol = 0x0;
1106 channel->control = CHANNEL_LOOP;
1107 if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
1109 channel->control |= CHANNEL_16BITS;
1111 channel->control |= CHANNEL_SIGNED;
1113 if (dmabuf->fmt & TRIDENT_FMT_STEREO)
1115 channel->control |= CHANNEL_STEREO;
1117 pr_debug("trident: trident_rec_setup, LBA = 0x%08x, Delat = 0x%08x, "
1118 "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
1119 channel->delta, channel->eso, channel->control);
1121 trident_write_voice_regs(state);
1124 /* get current playback/recording dma buffer pointer (byte offset from LBA),
1125 called with spinlock held! */
1126 static inline unsigned
1127 trident_get_dma_addr(struct trident_state *state)
1129 struct dmabuf *dmabuf = &state->dmabuf;
1132 if (!dmabuf->enable)
1135 outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR));
1137 switch (state->card->pci_id) {
1138 case PCI_DEVICE_ID_ALI_5451:
1139 case PCI_DEVICE_ID_SI_7018:
1140 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
1141 case PCI_DEVICE_ID_INTERG_5050:
1142 /* 16 bits ESO, CSO for 7018 and DX */
1143 cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2));
1145 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
1146 /* 24 bits ESO, CSO for NX */
1147 cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff;
1153 pr_debug("trident: trident_get_dma_addr: chip reported channel: %d, "
1154 "cso = 0x%04x\n", dmabuf->channel->num, cso);
1156 /* ESO and CSO are in units of Samples, convert to byte offset */
1157 cso <<= sample_shift[dmabuf->fmt];
1159 return (cso % dmabuf->dmasize);
1162 /* Stop recording (lock held) */
1164 __stop_adc(struct trident_state *state)
1166 struct dmabuf *dmabuf = &state->dmabuf;
1167 unsigned int chan_num = dmabuf->channel->num;
1168 struct trident_card *card = state->card;
1170 dmabuf->enable &= ~ADC_RUNNING;
1171 trident_stop_voice(card, chan_num);
1172 trident_disable_voice_irq(card, chan_num);
1176 stop_adc(struct trident_state *state)
1178 struct trident_card *card = state->card;
1179 unsigned long flags;
1181 spin_lock_irqsave(&card->lock, flags);
1183 spin_unlock_irqrestore(&card->lock, flags);
1187 start_adc(struct trident_state *state)
1189 struct dmabuf *dmabuf = &state->dmabuf;
1190 unsigned int chan_num = dmabuf->channel->num;
1191 struct trident_card *card = state->card;
1192 unsigned long flags;
1194 spin_lock_irqsave(&card->lock, flags);
1195 if ((dmabuf->mapped ||
1196 dmabuf->count < (signed) dmabuf->dmasize) &&
1198 dmabuf->enable |= ADC_RUNNING;
1199 trident_enable_voice_irq(card, chan_num);
1200 trident_start_voice(card, chan_num);
1202 spin_unlock_irqrestore(&card->lock, flags);
1205 /* stop playback (lock held) */
1207 __stop_dac(struct trident_state *state)
1209 struct dmabuf *dmabuf = &state->dmabuf;
1210 unsigned int chan_num = dmabuf->channel->num;
1211 struct trident_card *card = state->card;
1213 dmabuf->enable &= ~DAC_RUNNING;
1214 trident_stop_voice(card, chan_num);
1215 if (state->chans_num == 6) {
1216 trident_stop_voice(card, state->other_states[0]->
1217 dmabuf.channel->num);
1218 trident_stop_voice(card, state->other_states[1]->
1219 dmabuf.channel->num);
1220 trident_stop_voice(card, state->other_states[2]->
1221 dmabuf.channel->num);
1222 trident_stop_voice(card, state->other_states[3]->
1223 dmabuf.channel->num);
1225 trident_disable_voice_irq(card, chan_num);
1229 stop_dac(struct trident_state *state)
1231 struct trident_card *card = state->card;
1232 unsigned long flags;
1234 spin_lock_irqsave(&card->lock, flags);
1236 spin_unlock_irqrestore(&card->lock, flags);
1240 start_dac(struct trident_state *state)
1242 struct dmabuf *dmabuf = &state->dmabuf;
1243 unsigned int chan_num = dmabuf->channel->num;
1244 struct trident_card *card = state->card;
1245 unsigned long flags;
1247 spin_lock_irqsave(&card->lock, flags);
1248 if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) {
1249 dmabuf->enable |= DAC_RUNNING;
1250 trident_enable_voice_irq(card, chan_num);
1251 trident_start_voice(card, chan_num);
1252 if (state->chans_num == 6) {
1253 trident_start_voice(card, state->other_states[0]->
1254 dmabuf.channel->num);
1255 trident_start_voice(card, state->other_states[1]->
1256 dmabuf.channel->num);
1257 trident_start_voice(card, state->other_states[2]->
1258 dmabuf.channel->num);
1259 trident_start_voice(card, state->other_states[3]->
1260 dmabuf.channel->num);
1263 spin_unlock_irqrestore(&card->lock, flags);
1266 #define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
1267 #define DMABUF_MINORDER 1
1269 /* alloc a DMA buffer of with a buffer of this order */
1271 alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order)
1273 void *rawbuf = NULL;
1274 struct page *page, *pend;
1276 if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order,
1277 &dmabuf->dma_handle)))
1280 pr_debug("trident: allocated %ld (order = %d) bytes at %p\n",
1281 PAGE_SIZE << order, order, rawbuf);
1283 dmabuf->ready = dmabuf->mapped = 0;
1284 dmabuf->rawbuf = rawbuf;
1285 dmabuf->buforder = order;
1287 /* now mark the pages as reserved; otherwise */
1288 /* remap_pfn_range doesn't do what we want */
1289 pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
1290 for (page = virt_to_page(rawbuf); page <= pend; page++)
1291 SetPageReserved(page);
1296 /* allocate the main DMA buffer, playback and recording buffer should be */
1297 /* allocated separately */
1299 alloc_main_dmabuf(struct trident_state *state)
1301 struct dmabuf *dmabuf = &state->dmabuf;
1305 /* alloc as big a chunk as we can, FIXME: is this necessary ?? */
1306 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
1307 if (!(ret = alloc_dmabuf(dmabuf, state->card->pci_dev, order)))
1309 /* else try again */
1314 /* deallocate a DMA buffer */
1316 dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev)
1318 struct page *page, *pend;
1320 if (dmabuf->rawbuf) {
1321 /* undo marking the pages as reserved */
1322 pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
1323 for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
1324 ClearPageReserved(page);
1325 pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder,
1326 dmabuf->rawbuf, dmabuf->dma_handle);
1327 dmabuf->rawbuf = NULL;
1329 dmabuf->mapped = dmabuf->ready = 0;
1333 prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec)
1335 struct dmabuf *dmabuf = &state->dmabuf;
1336 unsigned bytepersec;
1337 struct trident_state *s = state;
1338 unsigned bufsize, dma_nums;
1339 unsigned long flags;
1342 if ((ret = lock_set_fmt(state)) < 0)
1345 if (state->chans_num == 6)
1350 for (i = 0; i < dma_nums; i++) {
1352 s = state->other_states[i - 1];
1353 dmabuf = &s->dmabuf;
1354 dmabuf->fmt = state->dmabuf.fmt;
1355 dmabuf->rate = state->dmabuf.rate;
1358 spin_lock_irqsave(&s->card->lock, flags);
1359 dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0;
1360 dmabuf->count = dmabuf->error = 0;
1361 spin_unlock_irqrestore(&s->card->lock, flags);
1363 /* allocate DMA buffer if not allocated yet */
1364 if (!dmabuf->rawbuf) {
1366 if ((ret = alloc_main_dmabuf(state))) {
1367 unlock_set_fmt(state);
1372 order = state->dmabuf.buforder - 1;
1373 if (order >= DMABUF_MINORDER) {
1374 ret = alloc_dmabuf(dmabuf,
1375 state->card->pci_dev,
1379 /* release the main DMA buffer */
1380 dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
1381 /* release the auxiliary DMA buffers */
1382 for (i -= 2; i >= 0; i--)
1383 dealloc_dmabuf(&state->other_states[i]->dmabuf,
1384 state->card->pci_dev);
1385 unlock_set_fmt(state);
1390 /* FIXME: figure out all this OSS fragment stuff */
1391 bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt];
1392 bufsize = PAGE_SIZE << dmabuf->buforder;
1393 if (dmabuf->ossfragshift) {
1394 if ((1000 << dmabuf->ossfragshift) < bytepersec)
1395 dmabuf->fragshift = ld2(bytepersec / 1000);
1397 dmabuf->fragshift = dmabuf->ossfragshift;
1399 /* lets hand out reasonable big ass buffers by default */
1400 dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT - 2);
1402 dmabuf->numfrag = bufsize >> dmabuf->fragshift;
1403 while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) {
1404 dmabuf->fragshift--;
1405 dmabuf->numfrag = bufsize >> dmabuf->fragshift;
1407 dmabuf->fragsize = 1 << dmabuf->fragshift;
1408 if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag)
1409 dmabuf->numfrag = dmabuf->ossmaxfrags;
1410 dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt];
1411 dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
1413 memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80,
1416 spin_lock_irqsave(&s->card->lock, flags);
1417 if (rec == DM_RECORD)
1418 trident_rec_setup(s);
1419 else /* DM_PLAYBACK */
1420 trident_play_setup(s);
1422 spin_unlock_irqrestore(&s->card->lock, flags);
1424 /* set the ready flag for the dma buffer */
1427 pr_debug("trident: prog_dmabuf(%d), sample rate = %d, "
1428 "format = %d, numfrag = %d, fragsize = %d "
1429 "dmasize = %d\n", dmabuf->channel->num,
1430 dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
1431 dmabuf->fragsize, dmabuf->dmasize);
1433 unlock_set_fmt(state);
1438 static inline int prog_dmabuf_record(struct trident_state* state)
1440 return prog_dmabuf(state, DM_RECORD);
1443 static inline int prog_dmabuf_playback(struct trident_state* state)
1445 return prog_dmabuf(state, DM_PLAYBACK);
1448 /* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e.
1449 |------------|------------| or |xxxxxxxxxxxx|------------| or |xxxxxxxxxxxx|xxxxxxxxxxxx|
1450 but we almost always get this
1451 |xxxxxx------|------------| or |xxxxxxxxxxxx|xxxxx-------|
1452 so we have to clear the tail space to "silence"
1453 |xxxxxx000000|------------| or |xxxxxxxxxxxx|xxxxxx000000|
1456 trident_clear_tail(struct trident_state *state)
1458 struct dmabuf *dmabuf = &state->dmabuf;
1460 unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80;
1462 unsigned long flags;
1464 spin_lock_irqsave(&state->card->lock, flags);
1465 swptr = dmabuf->swptr;
1466 spin_unlock_irqrestore(&state->card->lock, flags);
1468 if (swptr == 0 || swptr == dmabuf->dmasize / 2 ||
1469 swptr == dmabuf->dmasize)
1472 if (swptr < dmabuf->dmasize / 2)
1473 len = dmabuf->dmasize / 2 - swptr;
1475 len = dmabuf->dmasize - swptr;
1477 memset(dmabuf->rawbuf + swptr, silence, len);
1478 if (state->card->pci_id != PCI_DEVICE_ID_ALI_5451) {
1479 spin_lock_irqsave(&state->card->lock, flags);
1480 dmabuf->swptr += len;
1481 dmabuf->count += len;
1482 spin_unlock_irqrestore(&state->card->lock, flags);
1485 /* restart the dma machine in case it is halted */
1490 drain_dac(struct trident_state *state, int nonblock)
1492 DECLARE_WAITQUEUE(wait, current);
1493 struct dmabuf *dmabuf = &state->dmabuf;
1494 unsigned long flags;
1497 unsigned long diff = 0;
1499 if (dmabuf->mapped || !dmabuf->ready)
1502 add_wait_queue(&dmabuf->wait, &wait);
1504 /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
1505 every time to make the process really go to sleep */
1506 set_current_state(TASK_INTERRUPTIBLE);
1508 spin_lock_irqsave(&state->card->lock, flags);
1509 count = dmabuf->count;
1510 spin_unlock_irqrestore(&state->card->lock, flags);
1515 if (signal_pending(current))
1519 remove_wait_queue(&dmabuf->wait, &wait);
1520 set_current_state(TASK_RUNNING);
1524 /* No matter how much data is left in the buffer, we have to wait until
1525 CSO == ESO/2 or CSO == ESO when address engine interrupts */
1526 if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
1527 state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
1528 diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize;
1529 diff = diff % (dmabuf->dmasize);
1530 tmo = (diff * HZ) / dmabuf->rate;
1532 tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
1534 tmo >>= sample_shift[dmabuf->fmt];
1535 if (!schedule_timeout(tmo ? tmo : 1) && tmo) {
1539 remove_wait_queue(&dmabuf->wait, &wait);
1540 set_current_state(TASK_RUNNING);
1541 if (signal_pending(current))
1542 return -ERESTARTSYS;
1547 /* update buffer manangement pointers, especially, */
1548 /* dmabuf->count and dmabuf->hwptr */
1550 trident_update_ptr(struct trident_state *state)
1552 struct dmabuf *dmabuf = &state->dmabuf;
1553 unsigned hwptr, swptr;
1556 unsigned char silence;
1557 unsigned half_dmasize;
1559 /* update hardware pointer */
1560 hwptr = trident_get_dma_addr(state);
1561 diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
1562 dmabuf->hwptr = hwptr;
1563 dmabuf->total_bytes += diff;
1565 /* error handling and process wake up for ADC */
1566 if (dmabuf->enable == ADC_RUNNING) {
1567 if (dmabuf->mapped) {
1568 dmabuf->count -= diff;
1569 if (dmabuf->count >= (signed) dmabuf->fragsize)
1570 wake_up(&dmabuf->wait);
1572 dmabuf->count += diff;
1574 if (dmabuf->count < 0 ||
1575 dmabuf->count > dmabuf->dmasize) {
1576 /* buffer underrun or buffer overrun, */
1577 /* we have no way to recover it here, just */
1578 /* stop the machine and let the process */
1579 /* force hwptr and swptr to sync */
1583 if (dmabuf->count < (signed) dmabuf->dmasize / 2)
1584 wake_up(&dmabuf->wait);
1588 /* error handling and process wake up for DAC */
1589 if (dmabuf->enable == DAC_RUNNING) {
1590 if (dmabuf->mapped) {
1591 dmabuf->count += diff;
1592 if (dmabuf->count >= (signed) dmabuf->fragsize)
1593 wake_up(&dmabuf->wait);
1595 dmabuf->count -= diff;
1597 if (dmabuf->count < 0 ||
1598 dmabuf->count > dmabuf->dmasize) {
1599 /* buffer underrun or buffer overrun, we have no way to recover
1600 it here, just stop the machine and let the process force hwptr
1601 and swptr to sync */
1604 } else if (!dmabuf->endcleared) {
1605 swptr = dmabuf->swptr;
1606 silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80);
1607 if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) {
1608 /* We must clear end data of 1/2 dmabuf if needed.
1609 According to 1/2 algorithm of Address Engine Interrupt,
1610 check the validation of the data of half dmasize. */
1611 half_dmasize = dmabuf->dmasize / 2;
1612 if ((diff = hwptr - half_dmasize) < 0)
1614 if ((dmabuf->count + diff) < half_dmasize) {
1615 //there is invalid data in the end of half buffer
1616 if ((clear_cnt = half_dmasize - swptr) < 0)
1617 clear_cnt += half_dmasize;
1618 //clear the invalid data
1619 memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
1620 if (state->chans_num == 6) {
1621 clear_cnt = clear_cnt / 2;
1623 memset(state->other_states[0]->dmabuf.rawbuf + swptr,
1624 silence, clear_cnt);
1625 memset(state->other_states[1]->dmabuf.rawbuf + swptr,
1626 silence, clear_cnt);
1627 memset(state->other_states[2]->dmabuf.rawbuf + swptr,
1628 silence, clear_cnt);
1629 memset(state->other_states[3]->dmabuf.rawbuf + swptr,
1630 silence, clear_cnt);
1632 dmabuf->endcleared = 1;
1634 } else if (dmabuf->count < (signed) dmabuf->fragsize) {
1635 clear_cnt = dmabuf->fragsize;
1636 if ((swptr + clear_cnt) > dmabuf->dmasize)
1637 clear_cnt = dmabuf->dmasize - swptr;
1638 memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
1639 if (state->chans_num == 6) {
1640 clear_cnt = clear_cnt / 2;
1642 memset(state->other_states[0]->dmabuf.rawbuf + swptr,
1643 silence, clear_cnt);
1644 memset(state->other_states[1]->dmabuf.rawbuf + swptr,
1645 silence, clear_cnt);
1646 memset(state->other_states[2]->dmabuf.rawbuf + swptr,
1647 silence, clear_cnt);
1648 memset(state->other_states[3]->dmabuf.rawbuf + swptr,
1649 silence, clear_cnt);
1651 dmabuf->endcleared = 1;
1654 /* trident_update_ptr is called by interrupt handler or by process via
1655 ioctl/poll, we only wake up the waiting process when we have more
1656 than 1/2 buffer free (always true for interrupt handler) */
1657 if (dmabuf->count < (signed) dmabuf->dmasize / 2)
1658 wake_up(&dmabuf->wait);
1661 dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE;
1665 trident_address_interrupt(struct trident_card *card)
1668 struct trident_state *state;
1669 unsigned int channel;
1671 /* Update the pointers for all channels we are running. */
1672 /* FIXME: should read interrupt status only once */
1673 for (i = 0; i < NR_HW_CH; i++) {
1675 if (trident_check_channel_interrupt(card, channel)) {
1676 trident_ack_channel_interrupt(card, channel);
1677 if ((state = card->states[i]) != NULL) {
1678 trident_update_ptr(state);
1680 printk(KERN_WARNING "trident: spurious channel "
1681 "irq %d.\n", channel);
1682 trident_stop_voice(card, channel);
1683 trident_disable_voice_irq(card, channel);
1690 ali_hwvol_control(struct trident_card *card, int opt)
1692 u16 dwTemp, volume[2], mute, diff, *pVol[2];
1694 dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02);
1695 mute = dwTemp & 0x8000;
1696 volume[0] = dwTemp & 0x001f;
1697 volume[1] = (dwTemp & 0x1f00) >> 8;
1698 if (volume[0] < volume[1]) {
1699 pVol[0] = &volume[0];
1700 pVol[1] = &volume[1];
1702 pVol[1] = &volume[0];
1703 pVol[0] = &volume[1];
1705 diff = *(pVol[1]) - *(pVol[0]);
1707 if (opt == 1) { // MUTE
1709 ali_ac97_write(card->ac97_codec[0],
1711 } else if (opt == 2) { // Down
1714 if (*(pVol[1]) < 0x001f) {
1716 *(pVol[0]) = *(pVol[1]) - diff;
1719 dwTemp |= (volume[0]) | (volume[1] << 8);
1720 ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
1721 card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
1722 (((32 - volume[1]) * 25 / 8) << 8);
1723 } else if (opt == 4) { // Up
1726 if (*(pVol[0]) > 0) {
1728 *(pVol[1]) = *(pVol[0]) + diff;
1731 dwTemp |= (volume[0]) | (volume[1] << 8);
1732 ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
1733 card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
1734 (((32 - volume[1]) * 25 / 8) << 8);
1736 /* Nothing needs doing */
1741 * Re-enable reporting of vol change after 0.1 seconds
1745 ali_timeout(unsigned long ptr)
1747 struct trident_card *card = (struct trident_card *) ptr;
1750 /* Enable GPIO IRQ (MISCINT bit 18h) */
1751 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
1753 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
1757 * Set up the timer to clear the vol change notification
1761 ali_set_timer(struct trident_card *card)
1763 /* Add Timer Routine to Enable GPIO IRQ */
1764 del_timer(&card->timer); /* Never queue twice */
1765 card->timer.function = ali_timeout;
1766 card->timer.data = (unsigned long) card;
1767 card->timer.expires = jiffies + HZ / 10;
1768 add_timer(&card->timer);
1772 * Process a GPIO event
1776 ali_queue_task(struct trident_card *card, int opt)
1780 /* Disable GPIO IRQ (MISCINT bit 18h) */
1781 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
1782 temp &= (u16) (~0x0004);
1783 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
1785 /* Adjust the volume */
1786 ali_hwvol_control(card, opt);
1788 /* Set the timer for 1/10th sec */
1789 ali_set_timer(card);
1793 cyber_address_interrupt(struct trident_card *card)
1796 struct trident_state *state;
1797 unsigned int channel;
1799 /* Update the pointers for all channels we are running. */
1800 /* FIXED: read interrupt status only once */
1801 irq_status = inl(TRID_REG(card, T4D_AINT_A));
1803 pr_debug("cyber_address_interrupt: irq_status 0x%X\n", irq_status);
1805 for (i = 0; i < NR_HW_CH; i++) {
1807 if (irq_status & (1 << channel)) {
1808 /* clear bit by writing a 1, zeroes are ignored */
1809 outl((1 << channel), TRID_REG(card, T4D_AINT_A));
1811 pr_debug("cyber_interrupt: channel %d\n", channel);
1813 if ((state = card->states[i]) != NULL) {
1814 trident_update_ptr(state);
1816 printk(KERN_WARNING "cyber5050: spurious "
1817 "channel irq %d.\n", channel);
1818 trident_stop_voice(card, channel);
1819 trident_disable_voice_irq(card, channel);
1826 trident_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1828 struct trident_card *card = (struct trident_card *) dev_id;
1832 spin_lock(&card->lock);
1833 event = inl(TRID_REG(card, T4D_MISCINT));
1835 pr_debug("trident: trident_interrupt called, MISCINT = 0x%08x\n",
1838 if (event & ADDRESS_IRQ) {
1839 card->address_interrupt(card);
1842 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
1843 /* GPIO IRQ (H/W Volume Control) */
1844 event = inl(TRID_REG(card, T4D_MISCINT));
1845 if (event & (1 << 25)) {
1846 gpio = inl(TRID_REG(card, ALI_GPIO));
1847 if (!timer_pending(&card->timer))
1848 ali_queue_task(card, gpio & 0x07);
1850 event = inl(TRID_REG(card, T4D_MISCINT));
1851 outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1852 TRID_REG(card, T4D_MISCINT));
1853 spin_unlock(&card->lock);
1857 /* manually clear interrupt status, bad hardware design, blame T^2 */
1858 outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1859 TRID_REG(card, T4D_MISCINT));
1860 spin_unlock(&card->lock);
1864 /* in this loop, dmabuf.count signifies the amount of data that is waiting */
1865 /* to be copied to the user's buffer. it is filled by the dma machine and */
1866 /* drained by this loop. */
1868 trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
1870 struct trident_state *state = (struct trident_state *)file->private_data;
1871 struct dmabuf *dmabuf = &state->dmabuf;
1873 unsigned long flags;
1877 pr_debug("trident: trident_read called, count = %d\n", count);
1879 VALIDATE_STATE(state);
1883 if (!access_ok(VERIFY_WRITE, buffer, count))
1887 if (!dmabuf->ready && (ret = prog_dmabuf_record(state)))
1891 spin_lock_irqsave(&state->card->lock, flags);
1892 if (dmabuf->count > (signed) dmabuf->dmasize) {
1893 /* buffer overrun, we are recovering from */
1894 /* sleep_on_timeout, resync hwptr and swptr, */
1895 /* make process flush the buffer */
1896 dmabuf->count = dmabuf->dmasize;
1897 dmabuf->swptr = dmabuf->hwptr;
1899 swptr = dmabuf->swptr;
1900 cnt = dmabuf->dmasize - swptr;
1901 if (dmabuf->count < cnt)
1902 cnt = dmabuf->count;
1903 spin_unlock_irqrestore(&state->card->lock, flags);
1909 /* buffer is empty, start the dma machine and */
1910 /* wait for data to be recorded */
1912 if (file->f_flags & O_NONBLOCK) {
1919 /* No matter how much space left in the buffer, */
1920 /* we have to wait until CSO == ESO/2 or CSO == ESO */
1921 /* when address engine interrupts */
1922 tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
1923 tmo >>= sample_shift[dmabuf->fmt];
1924 /* There are two situations when sleep_on_timeout returns, one is when
1925 the interrupt is serviced correctly and the process is waked up by
1926 ISR ON TIME. Another is when timeout is expired, which means that
1927 either interrupt is NOT serviced correctly (pending interrupt) or it
1928 is TOO LATE for the process to be scheduled to run (scheduler latency)
1929 which results in a (potential) buffer overrun. And worse, there is
1930 NOTHING we can do to prevent it. */
1931 if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
1932 pr_debug(KERN_ERR "trident: recording schedule timeout, "
1933 "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
1934 dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
1935 dmabuf->hwptr, dmabuf->swptr);
1937 /* a buffer overrun, we delay the recovery until next time the
1938 while loop begin and we REALLY have space to record */
1940 if (signal_pending(current)) {
1946 if (dmabuf->mapped) {
1954 if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
1960 swptr = (swptr + cnt) % dmabuf->dmasize;
1962 spin_lock_irqsave(&state->card->lock, flags);
1963 dmabuf->swptr = swptr;
1964 dmabuf->count -= cnt;
1965 spin_unlock_irqrestore(&state->card->lock, flags);
1977 /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
1978 the soundcard. it is drained by the dma machine and filled by this loop. */
1981 trident_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos)
1983 struct trident_state *state = (struct trident_state *)file->private_data;
1984 struct dmabuf *dmabuf = &state->dmabuf;
1986 unsigned long flags;
1989 unsigned int state_cnt;
1990 unsigned int copy_count;
1991 int lret; /* for lock_set_fmt */
1993 pr_debug("trident: trident_write called, count = %d\n", count);
1995 VALIDATE_STATE(state);
1998 * Guard against an mmap or ioctl while writing
2003 if (dmabuf->mapped) {
2007 if (!dmabuf->ready && (ret = prog_dmabuf_playback(state)))
2010 if (!access_ok(VERIFY_READ, buffer, count)) {
2018 spin_lock_irqsave(&state->card->lock, flags);
2019 if (dmabuf->count < 0) {
2020 /* buffer underrun, we are recovering from */
2021 /* sleep_on_timeout, resync hwptr and swptr */
2023 dmabuf->swptr = dmabuf->hwptr;
2025 swptr = dmabuf->swptr;
2026 cnt = dmabuf->dmasize - swptr;
2027 if (dmabuf->count + cnt > dmabuf->dmasize)
2028 cnt = dmabuf->dmasize - dmabuf->count;
2029 spin_unlock_irqrestore(&state->card->lock, flags);
2035 /* buffer is full, start the dma machine and */
2036 /* wait for data to be played */
2038 if (file->f_flags & O_NONBLOCK) {
2043 /* No matter how much data left in the buffer, */
2044 /* we have to wait until CSO == ESO/2 or CSO == ESO */
2045 /* when address engine interrupts */
2046 lock_set_fmt(state);
2047 tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
2048 tmo >>= sample_shift[dmabuf->fmt];
2049 unlock_set_fmt(state);
2052 /* There are two situations when sleep_on_timeout */
2053 /* returns, one is when the interrupt is serviced */
2054 /* correctly and the process is waked up by ISR */
2055 /* ON TIME. Another is when timeout is expired, which */
2056 /* means that either interrupt is NOT serviced */
2057 /* correctly (pending interrupt) or it is TOO LATE */
2058 /* for the process to be scheduled to run */
2059 /* (scheduler latency) which results in a (potential) */
2060 /* buffer underrun. And worse, there is NOTHING we */
2061 /* can do to prevent it. */
2062 if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
2063 pr_debug(KERN_ERR "trident: playback schedule "
2064 "timeout, dmasz %u fragsz %u count %i "
2065 "hwptr %u swptr %u\n", dmabuf->dmasize,
2066 dmabuf->fragsize, dmabuf->count,
2067 dmabuf->hwptr, dmabuf->swptr);
2069 /* a buffer underrun, we delay the recovery */
2070 /* until next time the while loop begin and */
2071 /* we REALLY have data to play */
2073 if (signal_pending(current)) {
2079 if (dmabuf->mapped) {
2086 if ((lret = lock_set_fmt(state)) < 0) {
2091 if (state->chans_num == 6) {
2094 if (ali_write_5_1(state, buffer, cnt, ©_count,
2095 &state_cnt) == -EFAULT) {
2097 swptr = (swptr + state_cnt) % dmabuf->dmasize;
2098 spin_lock_irqsave(&state->card->lock, flags);
2099 dmabuf->swptr = swptr;
2100 dmabuf->count += state_cnt;
2101 dmabuf->endcleared = 0;
2102 spin_unlock_irqrestore(&state->card->lock, flags);
2107 unlock_set_fmt(state);
2111 if (copy_from_user(dmabuf->rawbuf + swptr,
2115 unlock_set_fmt(state);
2120 unlock_set_fmt(state);
2122 swptr = (swptr + state_cnt) % dmabuf->dmasize;
2124 spin_lock_irqsave(&state->card->lock, flags);
2125 dmabuf->swptr = swptr;
2126 dmabuf->count += state_cnt;
2127 dmabuf->endcleared = 0;
2128 spin_unlock_irqrestore(&state->card->lock, flags);
2141 /* No kernel lock - we have our own spinlock */
2143 trident_poll(struct file *file, struct poll_table_struct *wait)
2145 struct trident_state *state = (struct trident_state *)file->private_data;
2146 struct dmabuf *dmabuf = &state->dmabuf;
2147 unsigned long flags;
2148 unsigned int mask = 0;
2150 VALIDATE_STATE(state);
2153 * Guard against a parallel poll and write causing multiple
2154 * prog_dmabuf events
2159 if (file->f_mode & FMODE_WRITE) {
2160 if (!dmabuf->ready && prog_dmabuf_playback(state)) {
2164 poll_wait(file, &dmabuf->wait, wait);
2166 if (file->f_mode & FMODE_READ) {
2167 if (!dmabuf->ready && prog_dmabuf_record(state)) {
2171 poll_wait(file, &dmabuf->wait, wait);
2176 spin_lock_irqsave(&state->card->lock, flags);
2177 trident_update_ptr(state);
2178 if (file->f_mode & FMODE_READ) {
2179 if (dmabuf->count >= (signed) dmabuf->fragsize)
2180 mask |= POLLIN | POLLRDNORM;
2182 if (file->f_mode & FMODE_WRITE) {
2183 if (dmabuf->mapped) {
2184 if (dmabuf->count >= (signed) dmabuf->fragsize)
2185 mask |= POLLOUT | POLLWRNORM;
2187 if ((signed) dmabuf->dmasize >= dmabuf->count +
2188 (signed) dmabuf->fragsize)
2189 mask |= POLLOUT | POLLWRNORM;
2192 spin_unlock_irqrestore(&state->card->lock, flags);
2198 trident_mmap(struct file *file, struct vm_area_struct *vma)
2200 struct trident_state *state = (struct trident_state *)file->private_data;
2201 struct dmabuf *dmabuf = &state->dmabuf;
2205 VALIDATE_STATE(state);
2208 * Lock against poll read write or mmap creating buffers. Also lock
2209 * a read or write against an mmap.
2214 if (vma->vm_flags & VM_WRITE) {
2215 if ((ret = prog_dmabuf_playback(state)) != 0)
2217 } else if (vma->vm_flags & VM_READ) {
2218 if ((ret = prog_dmabuf_record(state)) != 0)
2224 if (vma->vm_pgoff != 0)
2226 size = vma->vm_end - vma->vm_start;
2227 if (size > (PAGE_SIZE << dmabuf->buforder))
2230 if (remap_pfn_range(vma, vma->vm_start,
2231 virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
2232 size, vma->vm_page_prot))
2242 trident_ioctl(struct inode *inode, struct file *file,
2243 unsigned int cmd, unsigned long arg)
2245 struct trident_state *state = (struct trident_state *)file->private_data;
2246 struct dmabuf *dmabuf = &state->dmabuf;
2247 unsigned long flags;
2248 audio_buf_info abinfo;
2250 int val, mapped, ret = 0;
2251 struct trident_card *card = state->card;
2252 void __user *argp = (void __user *)arg;
2253 int __user *p = argp;
2255 VALIDATE_STATE(state);
2258 mapped = ((file->f_mode & (FMODE_WRITE | FMODE_READ)) && dmabuf->mapped);
2260 pr_debug("trident: trident_ioctl, command = %2d, arg = 0x%08x\n",
2261 _IOC_NR(cmd), arg ? *p : 0);
2264 case OSS_GETVERSION:
2265 ret = put_user(SOUND_VERSION, p);
2268 case SNDCTL_DSP_RESET:
2269 /* FIXME: spin_lock ? */
2270 if (file->f_mode & FMODE_WRITE) {
2272 synchronize_irq(card->irq);
2274 dmabuf->swptr = dmabuf->hwptr = 0;
2275 dmabuf->count = dmabuf->total_bytes = 0;
2277 if (file->f_mode & FMODE_READ) {
2279 synchronize_irq(card->irq);
2281 dmabuf->swptr = dmabuf->hwptr = 0;
2282 dmabuf->count = dmabuf->total_bytes = 0;
2286 case SNDCTL_DSP_SYNC:
2287 if (file->f_mode & FMODE_WRITE)
2288 ret = drain_dac(state, file->f_flags & O_NONBLOCK);
2291 case SNDCTL_DSP_SPEED: /* set smaple rate */
2292 if (get_user(val, p)) {
2297 if (file->f_mode & FMODE_WRITE) {
2300 spin_lock_irqsave(&state->card->lock, flags);
2301 trident_set_dac_rate(state, val);
2302 spin_unlock_irqrestore(&state->card->lock, flags);
2304 if (file->f_mode & FMODE_READ) {
2307 spin_lock_irqsave(&state->card->lock, flags);
2308 trident_set_adc_rate(state, val);
2309 spin_unlock_irqrestore(&state->card->lock, flags);
2312 ret = put_user(dmabuf->rate, p);
2315 case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
2316 if (get_user(val, p)) {
2320 if ((ret = lock_set_fmt(state)) < 0)
2323 if (file->f_mode & FMODE_WRITE) {
2327 dmabuf->fmt |= TRIDENT_FMT_STEREO;
2329 dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
2331 if (file->f_mode & FMODE_READ) {
2335 dmabuf->fmt |= TRIDENT_FMT_STEREO;
2337 dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
2339 unlock_set_fmt(state);
2342 case SNDCTL_DSP_GETBLKSIZE:
2343 if (file->f_mode & FMODE_WRITE) {
2344 if ((val = prog_dmabuf_playback(state)))
2347 ret = put_user(dmabuf->fragsize, p);
2350 if (file->f_mode & FMODE_READ) {
2351 if ((val = prog_dmabuf_record(state)))
2354 ret = put_user(dmabuf->fragsize, p);
2357 /* neither READ nor WRITE? is this even possible? */
2362 case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */
2363 ret = put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 |
2367 case SNDCTL_DSP_SETFMT: /* Select sample format */
2368 if (get_user(val, p)) {
2372 if ((ret = lock_set_fmt(state)) < 0)
2375 if (val != AFMT_QUERY) {
2376 if (file->f_mode & FMODE_WRITE) {
2379 if (val == AFMT_S16_LE)
2380 dmabuf->fmt |= TRIDENT_FMT_16BIT;
2382 dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
2384 if (file->f_mode & FMODE_READ) {
2387 if (val == AFMT_S16_LE)
2388 dmabuf->fmt |= TRIDENT_FMT_16BIT;
2390 dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
2393 unlock_set_fmt(state);
2394 ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
2398 case SNDCTL_DSP_CHANNELS:
2399 if (get_user(val, p)) {
2404 if ((ret = lock_set_fmt(state)) < 0)
2407 if (file->f_mode & FMODE_WRITE) {
2411 //prevent from memory leak
2412 if ((state->chans_num > 2) && (state->chans_num != val)) {
2413 ali_free_other_states_resources(state);
2414 state->chans_num = 1;
2419 dmabuf->fmt |= TRIDENT_FMT_STEREO;
2420 if ((val == 6) && (state->card->pci_id == PCI_DEVICE_ID_ALI_5451)) {
2421 if (card->rec_channel_use_count > 0) {
2422 printk(KERN_ERR "trident: Record is "
2423 "working on the card!\n");
2425 unlock_set_fmt(state);
2429 ret = ali_setup_multi_channels(state->card, 6);
2431 unlock_set_fmt(state);
2434 down(&state->card->open_sem);
2435 ret = ali_allocate_other_states_resources(state, 6);
2437 up(&state->card->open_sem);
2438 unlock_set_fmt(state);
2441 state->card->multi_channel_use_count++;
2442 up(&state->card->open_sem);
2444 val = 2; /*yield to 2-channels */
2446 dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
2447 state->chans_num = val;
2449 if (file->f_mode & FMODE_READ) {
2453 if (!((file->f_mode & FMODE_WRITE) &&
2456 dmabuf->fmt |= TRIDENT_FMT_STEREO;
2458 dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
2459 state->chans_num = val;
2461 unlock_set_fmt(state);
2463 ret = put_user(val, p);
2466 case SNDCTL_DSP_POST:
2467 /* Cause the working fragment to be output */
2470 case SNDCTL_DSP_SUBDIVIDE:
2471 if (dmabuf->subdivision) {
2475 if (get_user(val, p)) {
2479 if (val != 1 && val != 2 && val != 4) {
2483 dmabuf->subdivision = val;
2486 case SNDCTL_DSP_SETFRAGMENT:
2487 if (get_user(val, p)) {
2492 dmabuf->ossfragshift = val & 0xffff;
2493 dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
2494 if (dmabuf->ossfragshift < 4)
2495 dmabuf->ossfragshift = 4;
2496 if (dmabuf->ossfragshift > 15)
2497 dmabuf->ossfragshift = 15;
2498 if (dmabuf->ossmaxfrags < 4)
2499 dmabuf->ossmaxfrags = 4;
2503 case SNDCTL_DSP_GETOSPACE:
2504 if (!(file->f_mode & FMODE_WRITE)) {
2508 if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
2512 spin_lock_irqsave(&state->card->lock, flags);
2513 trident_update_ptr(state);
2514 abinfo.fragsize = dmabuf->fragsize;
2515 abinfo.bytes = dmabuf->dmasize - dmabuf->count;
2516 abinfo.fragstotal = dmabuf->numfrag;
2517 abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
2518 spin_unlock_irqrestore(&state->card->lock, flags);
2519 ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
2523 case SNDCTL_DSP_GETISPACE:
2524 if (!(file->f_mode & FMODE_READ)) {
2528 if (!dmabuf->ready && (val = prog_dmabuf_record(state)) != 0) {
2532 spin_lock_irqsave(&state->card->lock, flags);
2533 trident_update_ptr(state);
2534 abinfo.fragsize = dmabuf->fragsize;
2535 abinfo.bytes = dmabuf->count;
2536 abinfo.fragstotal = dmabuf->numfrag;
2537 abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
2538 spin_unlock_irqrestore(&state->card->lock, flags);
2539 ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
2543 case SNDCTL_DSP_NONBLOCK:
2544 file->f_flags |= O_NONBLOCK;
2547 case SNDCTL_DSP_GETCAPS:
2548 ret = put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
2549 DSP_CAP_MMAP | DSP_CAP_BIND, p);
2552 case SNDCTL_DSP_GETTRIGGER:
2554 if ((file->f_mode & FMODE_READ) && dmabuf->enable)
2555 val |= PCM_ENABLE_INPUT;
2556 if ((file->f_mode & FMODE_WRITE) && dmabuf->enable)
2557 val |= PCM_ENABLE_OUTPUT;
2558 ret = put_user(val, p);
2561 case SNDCTL_DSP_SETTRIGGER:
2562 if (get_user(val, p)) {
2566 if (file->f_mode & FMODE_READ) {
2567 if (val & PCM_ENABLE_INPUT) {
2568 if (!dmabuf->ready &&
2569 (ret = prog_dmabuf_record(state)))
2575 if (file->f_mode & FMODE_WRITE) {
2576 if (val & PCM_ENABLE_OUTPUT) {
2577 if (!dmabuf->ready &&
2578 (ret = prog_dmabuf_playback(state)))
2586 case SNDCTL_DSP_GETIPTR:
2587 if (!(file->f_mode & FMODE_READ)) {
2591 if (!dmabuf->ready && (val = prog_dmabuf_record(state))
2596 spin_lock_irqsave(&state->card->lock, flags);
2597 trident_update_ptr(state);
2598 cinfo.bytes = dmabuf->total_bytes;
2599 cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
2600 cinfo.ptr = dmabuf->hwptr;
2602 dmabuf->count &= dmabuf->fragsize - 1;
2603 spin_unlock_irqrestore(&state->card->lock, flags);
2604 ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
2608 case SNDCTL_DSP_GETOPTR:
2609 if (!(file->f_mode & FMODE_WRITE)) {
2613 if (!dmabuf->ready && (val = prog_dmabuf_playback(state))
2619 spin_lock_irqsave(&state->card->lock, flags);
2620 trident_update_ptr(state);
2621 cinfo.bytes = dmabuf->total_bytes;
2622 cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
2623 cinfo.ptr = dmabuf->hwptr;
2625 dmabuf->count &= dmabuf->fragsize - 1;
2626 spin_unlock_irqrestore(&state->card->lock, flags);
2627 ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
2631 case SNDCTL_DSP_SETDUPLEX:
2635 case SNDCTL_DSP_GETODELAY:
2636 if (!(file->f_mode & FMODE_WRITE)) {
2640 if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
2644 spin_lock_irqsave(&state->card->lock, flags);
2645 trident_update_ptr(state);
2646 val = dmabuf->count;
2647 spin_unlock_irqrestore(&state->card->lock, flags);
2648 ret = put_user(val, p);
2651 case SOUND_PCM_READ_RATE:
2652 ret = put_user(dmabuf->rate, p);
2655 case SOUND_PCM_READ_CHANNELS:
2656 ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1,
2660 case SOUND_PCM_READ_BITS:
2661 ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
2665 case SNDCTL_DSP_GETCHANNELMASK:
2666 ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR |
2667 DSP_BIND_CENTER_LFE, p);
2670 case SNDCTL_DSP_BIND_CHANNEL:
2671 if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
2676 if (get_user(val, p)) {
2680 if (val == DSP_BIND_QUERY) {
2681 val = dmabuf->channel->attribute | 0x3c00;
2682 val = attr2mask[val >> 8];
2685 if (file->f_mode & FMODE_READ)
2686 dmabuf->channel->attribute = (CHANNEL_REC |
2688 if (file->f_mode & FMODE_WRITE)
2689 dmabuf->channel->attribute = (CHANNEL_SPC_PB |
2691 dmabuf->channel->attribute |= mask2attr[ffs(val)];
2693 ret = put_user(val, p);
2696 case SNDCTL_DSP_MAPINBUF:
2697 case SNDCTL_DSP_MAPOUTBUF:
2698 case SNDCTL_DSP_SETSYNCRO:
2699 case SOUND_PCM_WRITE_FILTER:
2700 case SOUND_PCM_READ_FILTER:
2710 trident_open(struct inode *inode, struct file *file)
2713 int minor = iminor(inode);
2714 struct trident_card *card = devs;
2715 struct trident_state *state = NULL;
2716 struct dmabuf *dmabuf = NULL;
2718 /* Added by Matt Wu 01-05-2001 */
2719 /* TODO: there's some redundacy here wrt the check below */
2720 /* for multi_use_count > 0. Should we return -EBUSY or find */
2721 /* a different card? for now, don't break current behaviour */
2723 if (file->f_mode & FMODE_READ) {
2724 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
2725 if (card->multi_channel_use_count > 0)
2730 /* find an available virtual channel (instance of /dev/dsp) */
2731 while (card != NULL) {
2732 down(&card->open_sem);
2733 if (file->f_mode & FMODE_READ) {
2734 /* Skip opens on cards that are in 6 channel mode */
2735 if (card->multi_channel_use_count > 0) {
2736 up(&card->open_sem);
2741 for (i = 0; i < NR_HW_CH; i++) {
2742 if (card->states[i] == NULL) {
2743 state = card->states[i] = kmalloc(sizeof(*state), GFP_KERNEL);
2744 if (state == NULL) {
2745 up(&card->open_sem);
2748 memset(state, 0, sizeof(*state));
2749 init_MUTEX(&state->sem);
2750 dmabuf = &state->dmabuf;
2754 up(&card->open_sem);
2757 /* no more virtual channel avaiable */
2762 /* found a free virtual channel, allocate hardware channels */
2763 if (file->f_mode & FMODE_READ)
2764 dmabuf->channel = card->alloc_rec_pcm_channel(card);
2766 dmabuf->channel = card->alloc_pcm_channel(card);
2768 if (dmabuf->channel == NULL) {
2769 kfree(card->states[i]);
2770 card->states[i] = NULL;
2774 /* initialize the virtual channel */
2777 state->magic = TRIDENT_STATE_MAGIC;
2778 init_waitqueue_head(&dmabuf->wait);
2779 file->private_data = state;
2781 /* set default sample format. According to OSS Programmer's */
2782 /* Guide /dev/dsp should be default to unsigned 8-bits, mono, */
2783 /* with sample rate 8kHz and /dev/dspW will accept 16-bits sample */
2784 if (file->f_mode & FMODE_WRITE) {
2785 dmabuf->fmt &= ~TRIDENT_FMT_MASK;
2786 if ((minor & 0x0f) == SND_DEV_DSP16)
2787 dmabuf->fmt |= TRIDENT_FMT_16BIT;
2788 dmabuf->ossfragshift = 0;
2789 dmabuf->ossmaxfrags = 0;
2790 dmabuf->subdivision = 0;
2791 if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
2792 /* set default channel attribute to normal playback */
2793 dmabuf->channel->attribute = CHANNEL_PB;
2795 trident_set_dac_rate(state, 8000);
2798 if (file->f_mode & FMODE_READ) {
2799 /* FIXME: Trident 4d can only record in signed 16-bits stereo, */
2800 /* 48kHz sample, to be dealed with in trident_set_adc_rate() ?? */
2801 dmabuf->fmt &= ~TRIDENT_FMT_MASK;
2802 if ((minor & 0x0f) == SND_DEV_DSP16)
2803 dmabuf->fmt |= TRIDENT_FMT_16BIT;
2804 dmabuf->ossfragshift = 0;
2805 dmabuf->ossmaxfrags = 0;
2806 dmabuf->subdivision = 0;
2807 if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
2808 /* set default channel attribute to 0x8a80, record from
2809 PCM L/R FIFO and mono = (left + right + 1)/2 */
2810 dmabuf->channel->attribute = (CHANNEL_REC | PCM_LR |
2813 trident_set_adc_rate(state, 8000);
2815 /* Added by Matt Wu 01-05-2001 */
2816 if (card->pci_id == PCI_DEVICE_ID_ALI_5451)
2817 card->rec_channel_use_count++;
2820 state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
2821 up(&card->open_sem);
2823 pr_debug("trident: open virtual channel %d, hard channel %d\n",
2824 state->virt, dmabuf->channel->num);
2826 return nonseekable_open(inode, file);
2830 trident_release(struct inode *inode, struct file *file)
2832 struct trident_state *state = (struct trident_state *)file->private_data;
2833 struct trident_card *card;
2834 struct dmabuf *dmabuf;
2836 VALIDATE_STATE(state);
2839 dmabuf = &state->dmabuf;
2841 if (file->f_mode & FMODE_WRITE) {
2842 trident_clear_tail(state);
2843 drain_dac(state, file->f_flags & O_NONBLOCK);
2846 pr_debug("trident: closing virtual channel %d, hard channel %d\n",
2847 state->virt, dmabuf->channel->num);
2849 /* stop DMA state machine and free DMA buffers/channels */
2850 down(&card->open_sem);
2852 if (file->f_mode & FMODE_WRITE) {
2854 dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
2855 state->card->free_pcm_channel(state->card, dmabuf->channel->num);
2857 /* Added by Matt Wu */
2858 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
2859 if (state->chans_num > 2) {
2860 if (card->multi_channel_use_count-- < 0)
2861 card->multi_channel_use_count = 0;
2862 if (card->multi_channel_use_count == 0)
2863 ali_close_multi_channels();
2864 ali_free_other_states_resources(state);
2868 if (file->f_mode & FMODE_READ) {
2870 dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
2871 state->card->free_pcm_channel(state->card, dmabuf->channel->num);
2873 /* Added by Matt Wu */
2874 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
2875 if (card->rec_channel_use_count-- < 0)
2876 card->rec_channel_use_count = 0;
2880 card->states[state->virt] = NULL;
2883 /* we're covered by the open_sem */
2884 up(&card->open_sem);
2889 static /*const */ struct file_operations trident_audio_fops = {
2890 .owner = THIS_MODULE,
2891 .llseek = no_llseek,
2892 .read = trident_read,
2893 .write = trident_write,
2894 .poll = trident_poll,
2895 .ioctl = trident_ioctl,
2896 .mmap = trident_mmap,
2897 .open = trident_open,
2898 .release = trident_release,
2901 /* trident specific AC97 functions */
2902 /* Write AC97 codec registers */
2904 trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val)
2906 struct trident_card *card = (struct trident_card *)codec->private_data;
2907 unsigned int address, mask, busy;
2908 unsigned short count = 0xffff;
2909 unsigned long flags;
2912 data = ((u32) val) << 16;
2914 switch (card->pci_id) {
2916 case PCI_DEVICE_ID_SI_7018:
2917 address = SI_AC97_WRITE;
2918 mask = SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY;
2920 mask |= SI_AC97_SECONDARY;
2921 busy = SI_AC97_BUSY_WRITE;
2923 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
2924 address = DX_ACR0_AC97_W;
2925 mask = busy = DX_AC97_BUSY_WRITE;
2927 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
2928 address = NX_ACR1_AC97_W;
2929 mask = NX_AC97_BUSY_WRITE;
2931 mask |= NX_AC97_WRITE_SECONDARY;
2932 busy = NX_AC97_BUSY_WRITE;
2934 case PCI_DEVICE_ID_INTERG_5050:
2935 address = SI_AC97_WRITE;
2936 mask = busy = SI_AC97_BUSY_WRITE;
2938 mask |= SI_AC97_SECONDARY;
2942 spin_lock_irqsave(&card->lock, flags);
2944 if ((inw(TRID_REG(card, address)) & busy) == 0)
2948 data |= (mask | (reg & AC97_REG_ADDR));
2951 printk(KERN_ERR "trident: AC97 CODEC write timed out.\n");
2952 spin_unlock_irqrestore(&card->lock, flags);
2956 outl(data, TRID_REG(card, address));
2957 spin_unlock_irqrestore(&card->lock, flags);
2960 /* Read AC97 codec registers */
2962 trident_ac97_get(struct ac97_codec *codec, u8 reg)
2964 struct trident_card *card = (struct trident_card *)codec->private_data;
2965 unsigned int address, mask, busy;
2966 unsigned short count = 0xffff;
2967 unsigned long flags;
2970 switch (card->pci_id) {
2972 case PCI_DEVICE_ID_SI_7018:
2973 address = SI_AC97_READ;
2974 mask = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY;
2976 mask |= SI_AC97_SECONDARY;
2977 busy = SI_AC97_BUSY_READ;
2979 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
2980 address = DX_ACR1_AC97_R;
2981 mask = busy = DX_AC97_BUSY_READ;
2983 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
2985 address = NX_ACR3_AC97_R_SECONDARY;
2987 address = NX_ACR2_AC97_R_PRIMARY;
2988 mask = NX_AC97_BUSY_READ;
2989 busy = NX_AC97_BUSY_READ | NX_AC97_BUSY_DATA;
2991 case PCI_DEVICE_ID_INTERG_5050:
2992 address = SI_AC97_READ;
2993 mask = busy = SI_AC97_BUSY_READ;
2995 mask |= SI_AC97_SECONDARY;
2999 data = (mask | (reg & AC97_REG_ADDR));
3001 spin_lock_irqsave(&card->lock, flags);
3002 outl(data, TRID_REG(card, address));
3004 data = inl(TRID_REG(card, address));
3005 if ((data & busy) == 0)
3008 spin_unlock_irqrestore(&card->lock, flags);
3011 printk(KERN_ERR "trident: AC97 CODEC read timed out.\n");
3014 return ((u16) (data >> 16));
3017 /* rewrite ac97 read and write mixer register by hulei for ALI*/
3019 acquirecodecaccess(struct trident_card *card)
3021 u16 wsemamask = 0x6000; /* bit 14..13 */
3027 wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
3028 wsemabits = wcontrol & wsemamask;
3030 if (wsemabits == 0x4000)
3031 return 1; /* 0x4000 is audio ,then success */
3034 if (wsemabits == 0) {
3036 outl(((u32) (wcontrol & 0x1eff) | 0x00004000),
3037 TRID_REG(card, ALI_AC97_WRITE));
3043 pr_debug("accesscodecsemaphore: try unlock\n");
3051 releasecodecaccess(struct trident_card *card)
3053 unsigned long wcontrol;
3054 wcontrol = inl(TRID_REG(card, ALI_AC97_WRITE));
3055 outl((wcontrol & 0xffff1eff), TRID_REG(card, ALI_AC97_WRITE));
3059 waitforstimertick(struct trident_card *card)
3061 unsigned long chk1, chk2;
3062 unsigned int wcount = 0xffff;
3063 chk1 = inl(TRID_REG(card, ALI_STIMER));
3066 chk2 = inl(TRID_REG(card, ALI_STIMER));
3067 if ((wcount > 0) && chk1 != chk2)
3076 /* Read AC97 codec registers for ALi*/
3078 ali_ac97_get(struct trident_card *card, int secondary, u8 reg)
3080 unsigned int address, mask;
3081 unsigned int ncount;
3082 unsigned long aud_reg;
3085 unsigned long flags;
3090 address = ALI_AC97_READ;
3091 if (card->revision == ALI_5451_V02) {
3092 address = ALI_AC97_WRITE;
3094 mask = ALI_AC97_READ_ACTION | ALI_AC97_AUDIO_BUSY;
3096 mask |= ALI_AC97_SECONDARY;
3098 spin_lock_irqsave(&card->lock, flags);
3100 if (!acquirecodecaccess(card))
3101 printk(KERN_ERR "access codec fail\n");
3103 wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
3105 wcontrol |= (0x8000 | reg);
3106 outw(wcontrol, TRID_REG(card, ALI_AC97_WRITE));
3108 data = (mask | (reg & AC97_REG_ADDR));
3110 if (!waitforstimertick(card)) {
3111 printk(KERN_ERR "ali_ac97_read: BIT_CLOCK is dead\n");
3120 if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ)
3125 if (ncount-- == 1) {
3126 pr_debug("ali_ac97_read :try clear busy flag\n");
3127 aud_reg = inl(TRID_REG(card, ALI_AC97_WRITE));
3128 outl((aud_reg & 0xffff7fff),
3129 TRID_REG(card, ALI_AC97_WRITE));
3134 data = inl(TRID_REG(card, address));
3136 spin_unlock_irqrestore(&card->lock, flags);
3138 return ((u16) (data >> 16));
3141 releasecodecaccess(card);
3142 spin_unlock_irqrestore(&card->lock, flags);
3143 printk(KERN_ERR "ali_ac97_read: AC97 CODEC read timed out.\n");
3147 /* Write AC97 codec registers for hulei*/
3149 ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val)
3151 unsigned int address, mask;
3152 unsigned int ncount;
3155 unsigned long flags;
3157 data = ((u32) val) << 16;
3162 address = ALI_AC97_WRITE;
3163 mask = ALI_AC97_WRITE_ACTION | ALI_AC97_AUDIO_BUSY;
3165 mask |= ALI_AC97_SECONDARY;
3166 if (card->revision == ALI_5451_V02)
3167 mask |= ALI_AC97_WRITE_MIXER_REGISTER;
3169 spin_lock_irqsave(&card->lock, flags);
3170 if (!acquirecodecaccess(card))
3171 printk(KERN_ERR "ali_ac97_write: access codec fail\n");
3173 wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
3175 wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */
3176 /* ali1535+ write */
3177 outl((data | wcontrol), TRID_REG(card, ALI_AC97_WRITE));
3179 if (!waitforstimertick(card)) {
3180 printk(KERN_ERR "BIT_CLOCK is dead\n");
3186 wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
3187 if (!(wcontrol & 0x8000))
3191 if (ncount-- == 1) {
3192 pr_debug("ali_ac97_set :try clear busy flag!!\n");
3193 outw(wcontrol & 0x7fff,
3194 TRID_REG(card, ALI_AC97_WRITE));
3200 releasecodecaccess(card);
3201 spin_unlock_irqrestore(&card->lock, flags);
3206 ali_enable_special_channel(struct trident_state *stat)
3208 struct trident_card *card = stat->card;
3209 unsigned long s_channels;
3211 s_channels = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
3212 s_channels |= (1 << stat->dmabuf.channel->num);
3213 outl(s_channels, TRID_REG(card, ALI_GLOBAL_CONTROL));
3217 ali_ac97_read(struct ac97_codec *codec, u8 reg)
3221 struct trident_card *card = NULL;
3223 /* Added by Matt Wu */
3227 card = (struct trident_card *) codec->private_data;
3229 if (!card->mixer_regs_ready)
3230 return ali_ac97_get(card, codec->id, reg);
3233 * FIXME: need to stop this caching some registers
3240 data = card->mixer_regs[reg / 2][id];
3245 ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val)
3248 struct trident_card *card;
3250 /* Added by Matt Wu */
3254 card = (struct trident_card *) codec->private_data;
3256 if (!card->mixer_regs_ready) {
3257 ali_ac97_set(card, codec->id, reg, val);
3266 card->mixer_regs[reg / 2][id] = val;
3267 ali_ac97_set(card, codec->id, reg, val);
3271 flag: ALI_SPDIF_OUT_TO_SPDIF_OUT
3272 ALI_PCM_TO_SPDIF_OUT
3276 ali_setup_spdif_out(struct trident_card *card, int flag)
3278 unsigned long spdif;
3282 struct pci_dev *pci_dev = NULL;
3284 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
3286 if (pci_dev == NULL)
3288 pci_read_config_byte(pci_dev, 0x61, &temp);
3290 pci_write_config_byte(pci_dev, 0x61, temp);
3291 pci_read_config_byte(pci_dev, 0x7d, &temp);
3293 pci_write_config_byte(pci_dev, 0x7d, temp);
3294 pci_read_config_byte(pci_dev, 0x7e, &temp);
3297 pci_write_config_byte(pci_dev, 0x7e, temp);
3299 ch = inb(TRID_REG(card, ALI_SCTRL));
3300 outb(ch | ALI_SPDIF_OUT_ENABLE, TRID_REG(card, ALI_SCTRL));
3301 ch = inb(TRID_REG(card, ALI_SPDIF_CTRL));
3302 outb(ch & ALI_SPDIF_OUT_CH_STATUS, TRID_REG(card, ALI_SPDIF_CTRL));
3304 if (flag & ALI_SPDIF_OUT_TO_SPDIF_OUT) {
3305 spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
3306 spdif |= ALI_SPDIF_OUT_CH_ENABLE;
3307 spdif &= ALI_SPDIF_OUT_SEL_SPDIF;
3308 outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
3309 spdif = inw(TRID_REG(card, ALI_SPDIF_CS));
3310 if (flag & ALI_SPDIF_OUT_NON_PCM)
3314 outw(spdif, TRID_REG(card, ALI_SPDIF_CS));
3316 spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
3317 spdif |= ALI_SPDIF_OUT_SEL_PCM;
3318 outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
3323 ali_disable_special_channel(struct trident_card *card, int ch)
3327 sc = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
3329 outl(sc, TRID_REG(card, ALI_GLOBAL_CONTROL));
3333 ali_disable_spdif_in(struct trident_card *card)
3335 unsigned long spdif;
3337 spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
3338 spdif &= (~ALI_SPDIF_IN_SUPPORT);
3339 outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
3341 ali_disable_special_channel(card, ALI_SPDIF_IN_CHANNEL);
3345 ali_setup_spdif_in(struct trident_card *card)
3347 unsigned long spdif;
3349 //Set SPDIF IN Supported
3350 spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
3351 spdif |= ALI_SPDIF_IN_SUPPORT;
3352 outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
3355 spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
3356 spdif |= ALI_SPDIF_IN_CH_ENABLE;
3357 outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
3359 spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
3360 spdif |= ALI_SPDIF_IN_CH_STATUS;
3361 outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
3363 spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
3364 spdif |= ALI_SPDIF_IN_FUNC_ENABLE;
3365 outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
3370 ali_delay(struct trident_card *card, int interval)
3372 unsigned long begintimer, currenttimer;
3374 begintimer = inl(TRID_REG(card, ALI_STIMER));
3375 currenttimer = inl(TRID_REG(card, ALI_STIMER));
3377 while (currenttimer < begintimer + interval)
3378 currenttimer = inl(TRID_REG(card, ALI_STIMER));
3382 ali_detect_spdif_rate(struct trident_card *card)
3386 u8 bval = 0, R1 = 0, R2 = 0;
3388 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
3390 outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
3392 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
3394 outb(bval, TRID_REG(card, ALI_SPDIF_CTRL + 1));
3396 while (((R1 < 0x0B) || (R1 > 0x0E)) && (R1 != 0x12) &&
3402 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
3406 if (count > 50000) {
3407 printk(KERN_WARNING "trident: Error in "
3408 "ali_detect_spdif_rate!\n");
3414 while (count <= 50000) {
3419 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
3428 if (count > 50000) {
3429 printk(KERN_WARNING "trident: Error in "
3430 "ali_detect_spdif_rate!\n");
3439 wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
3441 wval |= (u16) 0x09 << 8 | (u16) 0x05;
3442 outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
3444 bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
3445 outb(bval | 0x02, TRID_REG(card, ALI_SPDIF_CS + 3));
3449 wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
3451 wval |= (u16) 0x0E << 8 | (u16) 0x08;
3452 outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
3454 bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
3455 outb(bval | 0x03, TRID_REG(card, ALI_SPDIF_CS + 3));
3465 ali_get_spdif_in_rate(struct trident_card *card)
3470 ali_detect_spdif_rate(card);
3472 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
3475 outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
3477 bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3));
3500 ali_close_multi_channels(void)
3503 struct pci_dev *pci_dev = NULL;
3505 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
3507 if (pci_dev == NULL)
3509 pci_read_config_byte(pci_dev, 0x59, &temp);
3511 pci_write_config_byte(pci_dev, 0x59, temp);
3513 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
3515 if (pci_dev == NULL)
3518 pci_read_config_byte(pci_dev, 0xB8, &temp);
3520 pci_write_config_byte(pci_dev, 0xB8, temp);
3526 ali_setup_multi_channels(struct trident_card *card, int chan_nums)
3528 unsigned long dwValue;
3530 struct pci_dev *pci_dev = NULL;
3532 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
3534 if (pci_dev == NULL)
3536 pci_read_config_byte(pci_dev, 0x59, &temp);
3538 pci_write_config_byte(pci_dev, 0x59, temp);
3540 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
3542 if (pci_dev == NULL)
3544 pci_read_config_byte(pci_dev, (int) 0xB8, &temp);
3546 pci_write_config_byte(pci_dev, (int) 0xB8, (u8) temp);
3547 if (chan_nums == 6) {
3548 dwValue = inl(TRID_REG(card, ALI_SCTRL)) | 0x000f0000;
3549 outl(dwValue, TRID_REG(card, ALI_SCTRL));
3551 dwValue = inl(TRID_REG(card, ALI_SCTRL));
3552 if (dwValue & 0x2000000) {
3553 ali_ac97_write(card->ac97_codec[0], 0x02, 8080);
3554 ali_ac97_write(card->ac97_codec[0], 0x36, 0);
3555 ali_ac97_write(card->ac97_codec[0], 0x38, 0);
3557 * On a board with a single codec you won't get the
3558 * surround. On other boards configure it.
3560 if (card->ac97_codec[1] != NULL) {
3561 ali_ac97_write(card->ac97_codec[1], 0x36, 0);
3562 ali_ac97_write(card->ac97_codec[1], 0x38, 0);
3563 ali_ac97_write(card->ac97_codec[1], 0x02, 0x0606);
3564 ali_ac97_write(card->ac97_codec[1], 0x18, 0x0303);
3565 ali_ac97_write(card->ac97_codec[1], 0x74, 0x3);
3574 ali_free_pcm_channel(struct trident_card *card, unsigned int channel)
3581 bank = channel >> 5;
3582 channel = channel & 0x1f;
3584 card->banks[bank].bitmap &= ~(1 << (channel));
3588 ali_allocate_other_states_resources(struct trident_state *state, int chan_nums)
3590 struct trident_card *card = state->card;
3591 struct trident_state *s;
3592 int i, state_count = 0;
3593 struct trident_pcm_bank *bank;
3594 struct trident_channel *channel;
3597 bank = &card->banks[BANK_A];
3602 for (i = 0; (i < ALI_CHANNELS) && (state_count != 4); i++) {
3603 if (card->states[i])
3606 num = ali_multi_channels_5_1[state_count];
3607 if (!(bank->bitmap & (1 << num))) {
3608 bank->bitmap |= 1 << num;
3609 channel = &bank->channels[num];
3613 for (; state_count >= 0; state_count--) {
3614 kfree(state->other_states[state_count]);
3615 num = ali_multi_channels_5_1[state_count];
3616 ali_free_pcm_channel(card, num);
3620 s = card->states[i] = kmalloc(sizeof(*state), GFP_KERNEL);
3622 num = ali_multi_channels_5_1[state_count];
3623 ali_free_pcm_channel(card, num);
3625 for (; state_count >= 0; state_count--) {
3626 num = ali_multi_channels_5_1[state_count];
3627 ali_free_pcm_channel(card, num);
3628 kfree(state->other_states[state_count]);
3632 memset(s, 0, sizeof(*state));
3634 s->dmabuf.channel = channel;
3635 s->dmabuf.ossfragshift = s->dmabuf.ossmaxfrags =
3636 s->dmabuf.subdivision = 0;
3637 init_waitqueue_head(&s->dmabuf.wait);
3638 s->magic = card->magic;
3641 ali_enable_special_channel(s);
3642 state->other_states[state_count++] = s;
3645 if (state_count != 4) {
3647 for (; state_count >= 0; state_count--) {
3648 kfree(state->other_states[state_count]);
3649 num = ali_multi_channels_5_1[state_count];
3650 ali_free_pcm_channel(card, num);
3658 ali_save_regs(struct trident_card *card)
3660 unsigned long flags;
3663 spin_lock_irqsave(&card->lock, flags);
3665 ali_registers.global_regs[0x2c] = inl(TRID_REG(card, T4D_MISCINT));
3666 //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A));
3667 ali_registers.global_regs[0x21] = inl(TRID_REG(card, T4D_STOP_A));
3669 //disable all IRQ bits
3670 outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT));
3672 for (i = 1; i < ALI_MIXER_REGS; i++)
3673 ali_registers.mixer_regs[i] = ali_ac97_read(card->ac97_codec[0],
3676 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
3677 if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A))
3679 ali_registers.global_regs[i] = inl(TRID_REG(card, i * 4));
3682 for (i = 0; i < ALI_CHANNELS; i++) {
3683 outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
3684 for (j = 0; j < ALI_CHANNEL_REGS; j++)
3685 ali_registers.channel_regs[i][j] = inl(TRID_REG(card,
3689 //Stop all HW channel
3690 outl(ALI_STOP_ALL_CHANNELS, TRID_REG(card, T4D_STOP_A));
3692 spin_unlock_irqrestore(&card->lock, flags);
3696 ali_restore_regs(struct trident_card *card)
3698 unsigned long flags;
3701 spin_lock_irqsave(&card->lock, flags);
3703 for (i = 1; i < ALI_MIXER_REGS; i++)
3704 ali_ac97_write(card->ac97_codec[0], i * 2,
3705 ali_registers.mixer_regs[i]);
3707 for (i = 0; i < ALI_CHANNELS; i++) {
3708 outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
3709 for (j = 0; j < ALI_CHANNEL_REGS; j++)
3710 outl(ali_registers.channel_regs[i][j],
3711 TRID_REG(card, j * 4 + 0xe0));
3714 for (i = 0; i < ALI_GLOBAL_REGS; i++) {
3715 if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A) ||
3716 (i * 4 == T4D_START_A))
3718 outl(ali_registers.global_regs[i], TRID_REG(card, i * 4));
3722 outl(ali_registers.global_regs[0x20], TRID_REG(card, T4D_START_A));
3723 //restore IRQ enable bits
3724 outl(ali_registers.global_regs[0x2c], TRID_REG(card, T4D_MISCINT));
3726 spin_unlock_irqrestore(&card->lock, flags);
3730 trident_suspend(struct pci_dev *dev, pm_message_t unused)
3732 struct trident_card *card = pci_get_drvdata(dev);
3734 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
3735 ali_save_regs(card);
3741 trident_resume(struct pci_dev *dev)
3743 struct trident_card *card = pci_get_drvdata(dev);
3745 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
3746 ali_restore_regs(card);
3751 static struct trident_channel *
3752 ali_alloc_pcm_channel(struct trident_card *card)
3754 struct trident_pcm_bank *bank;
3757 bank = &card->banks[BANK_A];
3759 if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) &
3760 (ALI_SPDIF_OUT_CH_ENABLE)) {
3761 idx = ALI_SPDIF_OUT_CHANNEL;
3762 if (!(bank->bitmap & (1 << idx))) {
3763 struct trident_channel *channel = &bank->channels[idx];
3764 bank->bitmap |= 1 << idx;
3770 for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST;
3772 if (!(bank->bitmap & (1 << idx))) {
3773 struct trident_channel *channel = &bank->channels[idx];
3774 bank->bitmap |= 1 << idx;
3780 /* no more free channels avaliable */
3782 printk(KERN_ERR "ali: no more channels available on Bank A.\n");
3787 static struct trident_channel *
3788 ali_alloc_rec_pcm_channel(struct trident_card *card)
3790 struct trident_pcm_bank *bank;
3793 if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT)
3794 idx = ALI_SPDIF_IN_CHANNEL;
3796 idx = ALI_PCM_IN_CHANNEL;
3798 bank = &card->banks[BANK_A];
3800 if (!(bank->bitmap & (1 << idx))) {
3801 struct trident_channel *channel = &bank->channels[idx];
3802 bank->bitmap |= 1 << idx;
3807 /* no free recordable channels avaliable */
3809 printk(KERN_ERR "ali: no recordable channels available on Bank A.\n");
3815 ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate)
3817 unsigned char ch_st_sel;
3818 unsigned short status_rate;
3825 status_rate = 0x300;
3829 status_rate = 0x200;
3833 /* select spdif_out */
3834 ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS;
3836 ch_st_sel |= 0x80; /* select right */
3837 outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
3838 outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2));
3840 ch_st_sel &= (~0x80); /* select left */
3841 outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
3842 outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2));
3846 ali_address_interrupt(struct trident_card *card)
3849 struct trident_state *state;
3850 u32 mask, channel_mask;
3852 mask = trident_get_interrupt_mask(card, 0);
3853 for (i = 0; i < NR_HW_CH; i++) {
3854 if ((state = card->states[i]) == NULL)
3856 channel = state->dmabuf.channel->num;
3857 if ((channel_mask = 1 << channel) & mask) {
3858 mask &= ~channel_mask;
3859 trident_ack_channel_interrupt(card, channel);
3861 state->dmabuf.update_flag |= ALI_ADDRESS_INT_UPDATE;
3862 trident_update_ptr(state);
3866 for (i = 0; i < NR_HW_CH; i++) {
3867 if (mask & (1 << i)) {
3868 printk("ali: spurious channel irq %d.\n", i);
3869 trident_ack_channel_interrupt(card, i);
3870 trident_stop_voice(card, i);
3871 trident_disable_voice_irq(card, i);
3877 /* Updating the values of counters of other_states' DMAs without lock
3878 protection is no harm because all DMAs of multi-channels and interrupt
3879 depend on a master state's DMA, and changing the counters of the master
3880 state DMA is protected by a spinlock.
3883 ali_write_5_1(struct trident_state *state, const char __user *buf,
3884 int cnt_for_multi_channel, unsigned int *copy_count,
3885 unsigned int *state_cnt)
3888 struct dmabuf *dmabuf = &state->dmabuf;
3889 struct dmabuf *dmabuf_temp;
3890 const char __user *buffer = buf;
3891 unsigned swptr, other_dma_nums, sample_s;
3892 unsigned int i, loop;
3895 sample_s = sample_size[dmabuf->fmt] >> 1;
3896 swptr = dmabuf->swptr;
3898 if ((i = state->multi_channels_adjust_count) > 0) {
3900 if (copy_from_user(dmabuf->rawbuf + swptr,
3903 seek_offset(swptr, buffer, cnt_for_multi_channel,
3904 sample_s, *copy_count);
3906 (*state_cnt) += sample_s;
3907 state->multi_channels_adjust_count++;
3909 i = i - (state->chans_num - other_dma_nums);
3910 for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) {
3911 dmabuf_temp = &state->other_states[i]->dmabuf;
3912 if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
3915 seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
3916 sample_s, *copy_count);
3918 if (cnt_for_multi_channel == 0)
3919 state->multi_channels_adjust_count += i;
3921 if (cnt_for_multi_channel > 0) {
3922 loop = cnt_for_multi_channel / (state->chans_num * sample_s);
3923 for (i = 0; i < loop; i++) {
3924 if (copy_from_user(dmabuf->rawbuf + swptr, buffer,
3927 seek_offset(swptr, buffer, cnt_for_multi_channel,
3928 sample_s * 2, *copy_count);
3929 (*state_cnt) += (sample_s * 2);
3931 dmabuf_temp = &state->other_states[0]->dmabuf;
3932 if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
3935 seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
3936 sample_s, *copy_count);
3938 dmabuf_temp = &state->other_states[1]->dmabuf;
3939 if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
3942 seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
3943 sample_s, *copy_count);
3945 dmabuf_temp = &state->other_states[2]->dmabuf;
3946 if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
3949 seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
3950 sample_s, *copy_count);
3952 dmabuf_temp = &state->other_states[3]->dmabuf;
3953 if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
3956 seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
3957 sample_s, *copy_count);
3960 if (cnt_for_multi_channel > 0) {
3961 state->multi_channels_adjust_count = cnt_for_multi_channel / sample_s;
3963 if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
3965 seek_offset(swptr, buffer, cnt_for_multi_channel,
3966 sample_s, *copy_count);
3967 (*state_cnt) += sample_s;
3969 if (cnt_for_multi_channel > 0) {
3970 if (copy_from_user(dmabuf->rawbuf + swptr,
3973 seek_offset(swptr, buffer, cnt_for_multi_channel,
3974 sample_s, *copy_count);
3975 (*state_cnt) += sample_s;
3977 if (cnt_for_multi_channel > 0) {
3978 int diff = state->chans_num - other_dma_nums;
3979 loop = state->multi_channels_adjust_count - diff;
3980 for (i = 0; i < loop; i++) {
3981 dmabuf_temp = &state->other_states[i]->dmabuf;
3982 if (copy_from_user(dmabuf_temp->rawbuf +
3986 seek_offset(dmabuf_temp->swptr, buffer,
3987 cnt_for_multi_channel,
3988 sample_s, *copy_count);
3993 state->multi_channels_adjust_count = 0;
3995 for (i = 0; i < other_dma_nums; i++) {
3996 dmabuf_temp = &state->other_states[i]->dmabuf;
3997 dmabuf_temp->swptr = dmabuf_temp->swptr % dmabuf_temp->dmasize;
4003 ali_free_other_states_resources(struct trident_state *state)
4006 struct trident_card *card = state->card;
4007 struct trident_state *s;
4008 unsigned other_states_count;
4010 other_states_count = state->chans_num - 2; /* except PCM L/R channels */
4011 for (i = 0; i < other_states_count; i++) {
4012 s = state->other_states[i];
4013 dealloc_dmabuf(&s->dmabuf, card->pci_dev);
4014 ali_disable_special_channel(s->card, s->dmabuf.channel->num);
4015 state->card->free_pcm_channel(s->card, s->dmabuf.channel->num);
4016 card->states[s->virt] = NULL;
4021 static struct proc_dir_entry *res;
4024 ali_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data)
4026 struct trident_card *card = (struct trident_card *) data;
4027 unsigned long flags;
4034 if (get_user(c, buffer))
4037 spin_lock_irqsave(&card->lock, flags);
4040 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4041 ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
4044 ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
4048 ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
4049 ALI_SPDIF_OUT_NON_PCM);
4052 ali_disable_spdif_in(card); //default
4055 ali_setup_spdif_in(card);
4058 spin_unlock_irqrestore(&card->lock, flags);
4063 /* OSS /dev/mixer file operation methods */
4065 trident_open_mixdev(struct inode *inode, struct file *file)
4068 int minor = iminor(inode);
4069 struct trident_card *card = devs;
4071 for (card = devs; card != NULL; card = card->next)
4072 for (i = 0; i < NR_AC97; i++)
4073 if (card->ac97_codec[i] != NULL &&
4074 card->ac97_codec[i]->dev_mixer == minor)
4081 file->private_data = card->ac97_codec[i];
4083 return nonseekable_open(inode, file);
4087 trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
4090 struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
4092 return codec->mixer_ioctl(codec, cmd, arg);
4095 static /*const */ struct file_operations trident_mixer_fops = {
4096 .owner = THIS_MODULE,
4097 .llseek = no_llseek,
4098 .ioctl = trident_ioctl_mixdev,
4099 .open = trident_open_mixdev,
4103 ali_reset_5451(struct trident_card *card)
4105 struct pci_dev *pci_dev = NULL;
4107 unsigned short wCount, wReg;
4109 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
4111 if (pci_dev == NULL)
4114 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
4115 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
4117 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
4118 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
4121 pci_dev = card->pci_dev;
4122 if (pci_dev == NULL)
4125 pci_read_config_dword(pci_dev, 0x44, &dwVal);
4126 pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
4128 pci_read_config_dword(pci_dev, 0x44, &dwVal);
4129 pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
4132 /* TODO: recognize if we have a PM capable codec and only do this */
4133 /* if the codec is PM capable */
4136 wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
4137 if ((wReg & 0x000f) == 0x000f)
4141 /* This is non fatal if you have a non PM capable codec.. */
4145 /* AC97 codec initialisation. */
4146 static int __devinit
4147 trident_ac97_init(struct trident_card *card)
4150 unsigned long ready_2nd = 0;
4151 struct ac97_codec *codec;
4154 /* initialize controller side of AC link, and find out if secondary codes
4156 switch (card->pci_id) {
4157 case PCI_DEVICE_ID_ALI_5451:
4158 if (ali_reset_5451(card)) {
4159 printk(KERN_ERR "trident_ac97_init: error "
4160 "resetting 5451.\n");
4163 outl(0x80000001, TRID_REG(card, ALI_GLOBAL_CONTROL));
4164 outl(0x00000000, TRID_REG(card, T4D_AINTEN_A));
4165 outl(0xffffffff, TRID_REG(card, T4D_AINT_A));
4166 outl(0x00000000, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
4167 outb(0x10, TRID_REG(card, ALI_MPUR2));
4168 ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
4169 ready_2nd &= 0x3fff;
4170 outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL));
4171 ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
4172 ready_2nd &= SI_AC97_SECONDARY_READY;
4173 if (card->revision < ALI_5451_V02)
4176 case PCI_DEVICE_ID_SI_7018:
4177 /* disable AC97 GPIO interrupt */
4178 outl(0x00, TRID_REG(card, SI_AC97_GPIO));
4179 /* when power up the AC link is in cold reset mode so stop it */
4180 outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID,
4181 TRID_REG(card, SI_SERIAL_INTF_CTRL));
4182 /* it take a long time to recover from a cold reset */
4183 /* (especially when you have more than one codec) */
4185 ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
4186 ready_2nd &= SI_AC97_SECONDARY_READY;
4188 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
4190 outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
4192 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
4193 /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */
4194 outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT));
4195 ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT));
4196 ready_2nd &= NX_AC97_SECONDARY_READY;
4198 case PCI_DEVICE_ID_INTERG_5050:
4199 /* disable AC97 GPIO interrupt */
4200 outl(0x00, TRID_REG(card, SI_AC97_GPIO));
4201 /* when power up, the AC link is in cold reset mode, so stop it */
4202 outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT,
4203 TRID_REG(card, SI_SERIAL_INTF_CTRL));
4204 /* it take a long time to recover from a cold reset (especially */
4205 /* when you have more than one codec) */
4207 ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
4208 ready_2nd &= SI_AC97_SECONDARY_READY;
4212 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
4213 if ((codec = ac97_alloc_codec()) == NULL)
4216 /* initialize some basic codec information, other fields */
4217 /* will be filled in ac97_probe_codec */
4218 codec->private_data = card;
4219 codec->id = num_ac97;
4221 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4222 codec->codec_read = ali_ac97_read;
4223 codec->codec_write = ali_ac97_write;
4225 codec->codec_read = trident_ac97_get;
4226 codec->codec_write = trident_ac97_set;
4229 if (ac97_probe_codec(codec) == 0)
4232 codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1);
4233 if (codec->dev_mixer < 0) {
4234 printk(KERN_ERR "trident: couldn't register mixer!\n");
4235 ac97_release_codec(codec);
4239 card->ac97_codec[num_ac97] = codec;
4241 /* if there is no secondary codec at all, don't probe any more */
4246 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4247 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
4248 if (card->ac97_codec[num_ac97] == NULL)
4250 for (i = 0; i < 64; i++) {
4251 u16 reg = ali_ac97_get(card, num_ac97, i * 2);
4252 card->mixer_regs[i][num_ac97] = reg;
4256 return num_ac97 + 1;
4259 #ifdef SUPPORT_JOYSTICK
4260 /* Gameport functions for the cards ADC gameport */
4262 static unsigned char trident_game_read(struct gameport *gameport)
4264 struct trident_card *card = gameport->port_data;
4266 return inb(TRID_REG(card, T4D_GAME_LEG));
4269 static void trident_game_trigger(struct gameport *gameport)
4271 struct trident_card *card = gameport->port_data;
4273 outb(0xff, TRID_REG(card, T4D_GAME_LEG));
4276 static int trident_game_cooked_read(struct gameport *gameport,
4277 int *axes, int *buttons)
4279 struct trident_card *card = gameport->port_data;
4282 *buttons = (~inb(TRID_REG(card, T4D_GAME_LEG)) >> 4) & 0xf;
4284 for (i = 0; i < 4; i++) {
4285 axes[i] = inw(TRID_REG(card, T4D_GAME_AXD) + i * sizeof (u16));
4286 if (axes[i] == 0xffff)
4293 static int trident_game_open(struct gameport *gameport, int mode)
4295 struct trident_card *card = gameport->port_data;
4298 case GAMEPORT_MODE_COOKED:
4299 outb(0x80, TRID_REG(card, T4D_GAME_CR));
4302 case GAMEPORT_MODE_RAW:
4303 outb(0x00, TRID_REG(card, T4D_GAME_CR));
4312 static int __devinit trident_register_gameport(struct trident_card *card)
4314 struct gameport *gp;
4316 card->gameport = gp = gameport_allocate_port();
4318 printk(KERN_ERR "trident: can not allocate memory for gameport\n");
4322 gameport_set_name(gp, "Trident 4DWave");
4323 gameport_set_phys(gp, "pci%s/gameport0", pci_name(card->pci_dev));
4324 gp->read = trident_game_read;
4325 gp->trigger = trident_game_trigger;
4326 gp->cooked_read = trident_game_cooked_read;
4327 gp->open = trident_game_open;
4329 gp->port_data = card;
4331 gameport_register_port(gp);
4336 static inline void trident_unregister_gameport(struct trident_card *card)
4339 gameport_unregister_port(card->gameport);
4343 static inline int trident_register_gameport(struct trident_card *card) { return -ENOSYS; }
4344 static inline void trident_unregister_gameport(struct trident_card *card) { }
4345 #endif /* SUPPORT_JOYSTICK */
4347 /* install the driver, we do not allocate hardware channel nor DMA buffer */
4348 /* now, they are defered until "ACCESS" time (in prog_dmabuf called by */
4349 /* open/read/write/ioctl/mmap) */
4350 static int __devinit
4351 trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
4353 unsigned long iobase;
4354 struct trident_card *card;
4359 struct pci_dev *pci_dev_m1533 = NULL;
4363 if (pci_enable_device(pci_dev))
4366 if (pci_dev->device == PCI_DEVICE_ID_ALI_5451)
4367 dma_mask = ALI_DMA_MASK;
4369 dma_mask = TRIDENT_DMA_MASK;
4370 if (pci_set_dma_mask(pci_dev, dma_mask)) {
4371 printk(KERN_ERR "trident: architecture does not support"
4372 " %s PCI busmaster DMA\n",
4373 pci_dev->device == PCI_DEVICE_ID_ALI_5451 ?
4374 "32-bit" : "30-bit");
4377 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
4379 if (pci_id->device == PCI_DEVICE_ID_INTERG_5050)
4380 iobase = pci_resource_start(pci_dev, 1);
4382 iobase = pci_resource_start(pci_dev, 0);
4384 if (!request_region(iobase, 256, card_names[pci_id->driver_data])) {
4385 printk(KERN_ERR "trident: can't allocate I/O space at "
4386 "0x%4.4lx\n", iobase);
4391 if ((card = kmalloc(sizeof(*card), GFP_KERNEL)) == NULL) {
4392 printk(KERN_ERR "trident: out of memory\n");
4393 goto out_release_region;
4395 memset(card, 0, sizeof (*card));
4397 init_timer(&card->timer);
4398 card->iobase = iobase;
4399 card->pci_dev = pci_dev;
4400 card->pci_id = pci_id->device;
4401 card->revision = revision;
4402 card->irq = pci_dev->irq;
4404 card->magic = TRIDENT_CARD_MAGIC;
4405 card->banks[BANK_A].addresses = &bank_a_addrs;
4406 card->banks[BANK_A].bitmap = 0UL;
4407 card->banks[BANK_B].addresses = &bank_b_addrs;
4408 card->banks[BANK_B].bitmap = 0UL;
4410 init_MUTEX(&card->open_sem);
4411 spin_lock_init(&card->lock);
4412 init_timer(&card->timer);
4416 pci_set_master(pci_dev);
4418 printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n",
4419 card_names[pci_id->driver_data], card->iobase, card->irq);
4421 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4422 /* ALi channel Management */
4423 card->alloc_pcm_channel = ali_alloc_pcm_channel;
4424 card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
4425 card->free_pcm_channel = ali_free_pcm_channel;
4427 card->address_interrupt = ali_address_interrupt;
4429 /* Added by Matt Wu 01-05-2001 for spdif in */
4430 card->multi_channel_use_count = 0;
4431 card->rec_channel_use_count = 0;
4433 /* ALi SPDIF OUT function */
4434 if (card->revision == ALI_5451_V02) {
4435 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4436 res = create_proc_entry("ALi5451", 0, NULL);
4438 res->write_proc = ali_write_proc;
4443 /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
4445 pci_dev_m1533 = pci_find_device(PCI_VENDOR_ID_AL,
4446 PCI_DEVICE_ID_AL_M1533,
4449 if (pci_dev_m1533 == NULL)
4451 pci_read_config_byte(pci_dev_m1533, 0x63, &bits);
4452 if (bits & (1 << 5))
4454 if (card->hwvolctl) {
4455 /* Clear m1533 pci cfg 78h bit 30 to zero, which makes
4456 GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */
4457 pci_read_config_byte(pci_dev_m1533, 0x7b, &bits);
4458 bits &= 0xbf; /*clear bit 6 */
4459 pci_write_config_byte(pci_dev_m1533, 0x7b, bits);
4461 } else if (card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
4462 card->alloc_pcm_channel = cyber_alloc_pcm_channel;
4463 card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel;
4464 card->free_pcm_channel = cyber_free_pcm_channel;
4465 card->address_interrupt = cyber_address_interrupt;
4466 cyber_init_ritual(card);
4468 card->alloc_pcm_channel = trident_alloc_pcm_channel;
4469 card->alloc_rec_pcm_channel = trident_alloc_pcm_channel;
4470 card->free_pcm_channel = trident_free_pcm_channel;
4471 card->address_interrupt = trident_address_interrupt;
4476 if (request_irq(card->irq, &trident_interrupt, SA_SHIRQ,
4477 card_names[pci_id->driver_data], card)) {
4478 printk(KERN_ERR "trident: unable to allocate irq %d\n",
4482 /* register /dev/dsp */
4483 if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) {
4484 printk(KERN_ERR "trident: couldn't register DSP device!\n");
4487 card->mixer_regs_ready = 0;
4488 /* initialize AC97 codec and register /dev/mixer */
4489 if (trident_ac97_init(card) <= 0) {
4490 /* unregister audio devices */
4491 for (i = 0; i < NR_AC97; i++) {
4492 if (card->ac97_codec[i] != NULL) {
4493 struct ac97_codec* codec = card->ac97_codec[i];
4494 unregister_sound_mixer(codec->dev_mixer);
4495 ac97_release_codec(codec);
4498 goto out_unregister_sound_dsp;
4500 card->mixer_regs_ready = 1;
4501 outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
4503 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4504 /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
4505 if (card->hwvolctl) {
4506 /* Enable GPIO IRQ (MISCINT bit 18h) */
4507 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
4509 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
4511 /* Enable H/W Volume Control GLOVAL CONTROL bit 0 */
4512 temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
4514 outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL));
4517 if (card->revision == ALI_5451_V02)
4518 ali_close_multi_channels();
4519 /* edited by HMSEO for GT sound */
4520 #if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
4523 extern struct hwrpb_struct *hwrpb;
4525 if ((hwrpb->sys_type) == 201) {
4526 printk(KERN_INFO "trident: Running on Alpha system "
4528 ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
4529 ali_ac97_set(card, 0, AC97_POWER_CONTROL,
4530 ac97_data | ALI_EAPD_POWER_DOWN);
4533 #endif /* CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC */
4534 /* edited by HMSEO for GT sound */
4537 pci_set_drvdata(pci_dev, card);
4539 /* Enable Address Engine Interrupts */
4540 trident_enable_loop_interrupts(card);
4542 /* Register gameport */
4543 trident_register_gameport(card);
4548 out_unregister_sound_dsp:
4549 unregister_sound_dsp(card->dev_audio);
4551 free_irq(card->irq, card);
4554 remove_proc_entry("ALi5451", NULL);
4560 release_region(iobase, 256);
4564 static void __devexit
4565 trident_remove(struct pci_dev *pci_dev)
4568 struct trident_card *card = pci_get_drvdata(pci_dev);
4571 * Kill running timers before unload. We can't have them
4572 * going off after rmmod!
4575 del_timer_sync(&card->timer);
4577 /* ALi S/PDIF and Power Management */
4578 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4579 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4580 ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
4581 ali_disable_spdif_in(card);
4582 remove_proc_entry("ALi5451", NULL);
4585 /* Unregister gameport */
4586 trident_unregister_gameport(card);
4588 /* Kill interrupts, and SP/DIF */
4589 trident_disable_loop_interrupts(card);
4591 /* free hardware resources */
4592 free_irq(card->irq, card);
4593 release_region(card->iobase, 256);
4595 /* unregister audio devices */
4596 for (i = 0; i < NR_AC97; i++)
4597 if (card->ac97_codec[i] != NULL) {
4598 unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
4599 ac97_release_codec(card->ac97_codec[i]);
4601 unregister_sound_dsp(card->dev_audio);
4605 pci_set_drvdata(pci_dev, NULL);
4608 MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee, Muli Ben-Yehuda");
4609 MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI "
4611 MODULE_LICENSE("GPL");
4613 #define TRIDENT_MODULE_NAME "trident"
4615 static struct pci_driver trident_pci_driver = {
4616 .name = TRIDENT_MODULE_NAME,
4617 .id_table = trident_pci_tbl,
4618 .probe = trident_probe,
4619 .remove = __devexit_p(trident_remove),
4620 .suspend = trident_suspend,
4621 .resume = trident_resume
4625 trident_init_module(void)
4627 printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro "
4628 "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " "
4631 return pci_register_driver(&trident_pci_driver);
4635 trident_cleanup_module(void)
4637 pci_unregister_driver(&trident_pci_driver);
4640 module_init(trident_init_module);
4641 module_exit(trident_cleanup_module);
projects / linux-2.6 / blob