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>
220 #include <asm/hardirq.h>
224 #if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
225 #include <asm/hwrpb.h>
230 #define DRIVER_VERSION "0.14.10j-2.6"
232 /* magic numbers to protect our data structures */
233 #define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
234 #define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */
236 #define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */
237 #define ALI_DMA_MASK 0x7fffffff /* ALI Tridents have 31-bit DMA. Wow. */
241 /* maximum number of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
242 have 2 SDATA_IN lines (currently) */
245 /* minor number of /dev/swmodem (temporary, experimental) */
246 #define SND_DEV_SWMODEM 7
248 static const unsigned ali_multi_channels_5_1[] = {
249 /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL, */
252 ALI_SURR_LEFT_CHANNEL,
253 ALI_SURR_RIGHT_CHANNEL
256 static const unsigned sample_size[] = { 1, 2, 2, 4 };
257 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
259 static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n";
269 static char *card_names[] = {
272 "SiS 7018 PCI Audio",
273 "ALi Audio Accelerator",
274 "Tvia/IGST CyberPro 5050"
277 static struct pci_device_id trident_pci_tbl[] = {
278 {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX,
279 PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_DX},
280 {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX,
281 PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_NX},
282 {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018,
283 PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7018},
284 {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451,
285 PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI_5451},
286 {PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050,
287 PCI_ANY_ID, PCI_ANY_ID, 0, 0, CYBER5050},
291 MODULE_DEVICE_TABLE(pci, trident_pci_tbl);
293 /* "software" or virtual channel, an instance of opened /dev/dsp */
294 struct trident_state {
296 struct trident_card *card; /* Card info */
301 /* virtual channel number */
305 /* wave sample stuff */
307 unsigned char fmt, enable;
309 /* hardware channel */
310 struct trident_channel *channel;
312 /* OSS buffer management stuff */
314 dma_addr_t dma_handle;
319 /* our buffer acts like a circular ring */
320 unsigned hwptr; /* where dma last started, updated by update_ptr */
321 unsigned swptr; /* where driver last clear/filled, updated by read/write */
322 int count; /* bytes to be comsumed or been generated by dma machine */
323 unsigned total_bytes; /* total bytes dmaed by hardware */
325 unsigned error; /* number of over/underruns */
326 /* put process on wait queue when no more space in buffer */
327 wait_queue_head_t wait;
329 /* redundant, but makes calculations easier */
332 unsigned fragsamples;
337 unsigned endcleared:1;
338 unsigned update_flag;
339 unsigned ossfragshift;
341 unsigned subdivision;
346 struct trident_state *other_states[4];
347 int multi_channels_adjust_count;
349 unsigned long fmt_flag;
350 /* Guard against mmap/write/read races */
351 struct semaphore sem;
355 /* hardware channels */
356 struct trident_channel {
357 int num; /* channel number */
358 u32 lba; /* Loop Begine Address, where dma buffer starts */
359 u32 eso; /* End Sample Offset, wehre dma buffer ends */
360 /* (in the unit of samples) */
361 u32 delta; /* delta value, sample rate / 48k for playback, */
362 /* 48k/sample rate for recording */
363 u16 attribute; /* control where PCM data go and come */
365 u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
368 struct trident_pcm_bank_address {
375 static struct trident_pcm_bank_address bank_a_addrs = {
382 static struct trident_pcm_bank_address bank_b_addrs = {
389 struct trident_pcm_bank {
390 /* register addresses to control bank operations */
391 struct trident_pcm_bank_address *addresses;
392 /* each bank has 32 channels */
393 u32 bitmap; /* channel allocation bitmap */
394 struct trident_channel channels[32];
397 struct trident_card {
400 /* We keep trident cards in a linked list */
401 struct trident_card *next;
403 /* single open lock mechanism, only used for recording */
404 struct semaphore open_sem;
406 /* The trident has a certain amount of cross channel interaction
407 so we use a single per card lock */
410 /* PCI device stuff */
411 struct pci_dev *pci_dev;
415 /* soundcore stuff */
418 /* structures for abstraction of hardware facilities, codecs, */
419 /* banks and channels */
420 struct ac97_codec *ac97_codec[NR_AC97];
421 struct trident_pcm_bank banks[NR_BANKS];
422 struct trident_state *states[NR_HW_CH];
424 /* hardware resources */
425 unsigned long iobase;
428 /* Function support */
429 struct trident_channel *(*alloc_pcm_channel) (struct trident_card *);
430 struct trident_channel *(*alloc_rec_pcm_channel) (struct trident_card *);
431 void (*free_pcm_channel) (struct trident_card *, unsigned int chan);
432 void (*address_interrupt) (struct trident_card *);
434 /* Added by Matt Wu 01-05-2001 for spdif in */
435 int multi_channel_use_count;
436 int rec_channel_use_count;
437 u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */
438 int mixer_regs_ready;
440 /* Added for hardware volume control */
442 struct timer_list timer;
444 /* Game port support */
445 struct gameport gameport;
453 /* table to map from CHANNELMASK to channel attribute for SiS 7018 */
454 static u16 mask2attr[] = {
455 PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
456 HSET, MIC, MODEM_LINE1, MODEM_LINE2,
460 /* table to map from channel attribute to CHANNELMASK for SiS 7018 */
461 static int attr2mask[] = {
462 DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
463 DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
466 /* Added by Matt Wu 01-05-2001 for spdif in */
467 static int ali_close_multi_channels(void);
468 static void ali_delay(struct trident_card *card, int interval);
469 static void ali_detect_spdif_rate(struct trident_card *card);
471 static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
472 static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
474 static struct trident_card *devs;
476 static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
477 static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
479 static int trident_open_mixdev(struct inode *inode, struct file *file);
480 static int trident_ioctl_mixdev(struct inode *inode, struct file *file,
481 unsigned int cmd, unsigned long arg);
483 static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
484 static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
485 static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
486 static void ali_enable_special_channel(struct trident_state *stat);
487 static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
488 static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
489 static void ali_restore_regs(struct trident_card *card);
490 static void ali_save_regs(struct trident_card *card);
491 static int trident_suspend(struct pci_dev *dev, u32 unused);
492 static int trident_resume(struct pci_dev *dev);
493 static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
494 static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
495 static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
496 static void ali_setup_spdif_in(struct trident_card *card);
497 static void ali_disable_spdif_in(struct trident_card *card);
498 static void ali_disable_special_channel(struct trident_card *card, int ch);
499 static void ali_setup_spdif_out(struct trident_card *card, int flag);
500 static int ali_write_5_1(struct trident_state *state,
501 const char __user *buffer,
502 int cnt_for_multi_channel, unsigned int *copy_count,
503 unsigned int *state_cnt);
504 static int ali_allocate_other_states_resources(struct trident_state *state,
506 static void ali_free_other_states_resources(struct trident_state *state);
508 /* save registers for ALi Power Management */
509 static struct ali_saved_registers {
510 unsigned long global_regs[ALI_GLOBAL_REGS];
511 unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
512 unsigned mixer_regs[ALI_MIXER_REGS];
515 #define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) do { \
516 (dma_ptr) += (offset); \
517 (buffer) += (offset); \
519 (copy_count) += (offset); \
522 static inline int lock_set_fmt(struct trident_state* state)
524 if (test_and_set_bit(0, &state->fmt_flag))
530 static inline void unlock_set_fmt(struct trident_state* state)
532 clear_bit(0, &state->fmt_flag);
536 trident_enable_loop_interrupts(struct trident_card *card)
540 global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
542 switch (card->pci_id) {
543 case PCI_DEVICE_ID_SI_7018:
544 global_control |= (ENDLP_IE | MIDLP_IE | BANK_B_EN);
546 case PCI_DEVICE_ID_ALI_5451:
547 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
548 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
549 case PCI_DEVICE_ID_INTERG_5050:
550 global_control |= (ENDLP_IE | MIDLP_IE);
556 outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
558 pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n",
559 inl(TRID_REG(card, T4D_LFO_GC_CIR)));
565 trident_disable_loop_interrupts(struct trident_card *card)
569 global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
570 global_control &= ~(ENDLP_IE | MIDLP_IE);
571 outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
573 pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n",
580 trident_enable_voice_irq(struct trident_card *card, unsigned int channel)
582 unsigned int mask = 1 << (channel & 0x1f);
583 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
584 u32 reg, addr = bank->addresses->aint_en;
586 reg = inl(TRID_REG(card, addr));
588 outl(reg, TRID_REG(card, addr));
591 reg = inl(TRID_REG(card, addr));
592 pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
593 channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
599 trident_disable_voice_irq(struct trident_card *card, unsigned int channel)
601 unsigned int mask = 1 << (channel & 0x1f);
602 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
603 u32 reg, addr = bank->addresses->aint_en;
605 reg = inl(TRID_REG(card, addr));
607 outl(reg, TRID_REG(card, addr));
609 /* Ack the channel in case the interrupt was set before we disable it. */
610 outl(mask, TRID_REG(card, bank->addresses->aint));
613 reg = inl(TRID_REG(card, addr));
614 pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
615 channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
621 trident_start_voice(struct trident_card *card, unsigned int channel)
623 unsigned int mask = 1 << (channel & 0x1f);
624 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
625 u32 addr = bank->addresses->start;
631 outl(mask, TRID_REG(card, addr));
634 reg = inl(TRID_REG(card, addr));
635 pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n",
636 channel, addr == T4D_START_B ? "START_B" : "START_A",
642 trident_stop_voice(struct trident_card *card, unsigned int channel)
644 unsigned int mask = 1 << (channel & 0x1f);
645 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
646 u32 addr = bank->addresses->stop;
652 outl(mask, TRID_REG(card, addr));
655 reg = inl(TRID_REG(card, addr));
656 pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n",
657 channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A",
663 trident_get_interrupt_mask(struct trident_card *card, unsigned int channel)
665 struct trident_pcm_bank *bank = &card->banks[channel];
666 u32 addr = bank->addresses->aint;
667 return inl(TRID_REG(card, addr));
671 trident_check_channel_interrupt(struct trident_card *card, unsigned int channel)
673 unsigned int mask = 1 << (channel & 0x1f);
674 u32 reg = trident_get_interrupt_mask(card, channel >> 5);
678 pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n",
679 channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A",
682 return (reg & mask) ? 1 : 0;
686 trident_ack_channel_interrupt(struct trident_card *card, unsigned int channel)
688 unsigned int mask = 1 << (channel & 0x1f);
689 struct trident_pcm_bank *bank = &card->banks[channel >> 5];
690 u32 reg, addr = bank->addresses->aint;
692 reg = inl(TRID_REG(card, addr));
694 outl(reg, TRID_REG(card, addr));
697 reg = inl(TRID_REG(card, T4D_AINT_B));
698 pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n",
703 static struct trident_channel *
704 trident_alloc_pcm_channel(struct trident_card *card)
706 struct trident_pcm_bank *bank;
709 bank = &card->banks[BANK_B];
711 for (idx = 31; idx >= 0; idx--) {
712 if (!(bank->bitmap & (1 << idx))) {
713 struct trident_channel *channel = &bank->channels[idx];
714 bank->bitmap |= 1 << idx;
715 channel->num = idx + 32;
720 /* no more free channels available */
721 printk(KERN_ERR "trident: no more channels available on Bank B.\n");
726 trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
731 if (channel < 31 || channel > 63)
734 if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
735 card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
736 b = inb(TRID_REG(card, T4D_REC_CH));
737 if ((b & ~0x80) == channel)
738 outb(0x0, TRID_REG(card, T4D_REC_CH));
742 channel = channel & 0x1f;
744 card->banks[bank].bitmap &= ~(1 << (channel));
747 static struct trident_channel *
748 cyber_alloc_pcm_channel(struct trident_card *card)
750 struct trident_pcm_bank *bank;
753 /* The cyberpro 5050 has only 32 voices and one bank */
754 /* .. at least they are not documented (if you want to call that
755 * crap documentation), perhaps broken ? */
757 bank = &card->banks[BANK_A];
759 for (idx = 31; idx >= 0; idx--) {
760 if (!(bank->bitmap & (1 << idx))) {
761 struct trident_channel *channel = &bank->channels[idx];
762 bank->bitmap |= 1 << idx;
768 /* no more free channels available */
769 printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n");
774 cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
778 card->banks[BANK_A].bitmap &= ~(1 << (channel));
782 cyber_outidx(int port, int idx, int data)
785 outb(data, port + 1);
789 cyber_inidx(int port, int idx)
792 return inb(port + 1);
796 cyber_init_ritual(struct trident_card *card)
798 /* some black magic, taken from SDK samples */
799 /* remove this and nothing will work */
805 * Keep interrupts off for the configure - we don't want to
806 * clash with another cyberpro config event
809 spin_lock_irqsave(&card->lock, flags);
810 portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
811 /* enable, if it was disabled */
812 if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
813 printk(KERN_INFO "cyberpro5050: enabling audio controller\n");
814 cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
815 portDat | CYBER_BMSK_AUENZ_ENABLE);
816 /* check again if hardware is enabled now */
817 portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
819 if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
820 printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n");
823 cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE,
824 CYBER_BMSK_AUDIO_INT_ENABLE);
825 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01);
826 cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20);
827 cyber_outidx(CYBER_PORT_AUDIO, 0xbb, 0x08);
828 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x02);
829 cyber_outidx(CYBER_PORT_AUDIO, 0xb3, 0x06);
830 cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x00);
832 spin_unlock_irqrestore(&card->lock, flags);
836 /* called with spin lock held */
839 trident_load_channel_registers(struct trident_card *card, u32 * data,
840 unsigned int channel)
847 /* select hardware channel to write */
848 outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
850 /* Output the channel registers, but don't write register
851 three to an ALI chip. */
852 for (i = 0; i < CHANNEL_REGS; i++) {
853 if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
855 outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i));
857 if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
858 card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
859 outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
860 outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
865 /* called with spin lock held */
867 trident_write_voice_regs(struct trident_state *state)
869 unsigned int data[CHANNEL_REGS + 1];
870 struct trident_channel *channel;
872 channel = state->dmabuf.channel;
874 data[1] = channel->lba;
875 data[4] = channel->control;
877 switch (state->card->pci_id) {
878 case PCI_DEVICE_ID_ALI_5451:
879 data[0] = 0; /* Current Sample Offset */
880 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
883 case PCI_DEVICE_ID_SI_7018:
884 case PCI_DEVICE_ID_INTERG_5050:
885 data[0] = 0; /* Current Sample Offset */
886 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
887 data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
889 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
890 data[0] = 0; /* Current Sample Offset */
891 data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
892 data[3] = channel->fm_vol & 0xffff;
894 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
895 data[0] = (channel->delta << 24);
896 data[2] = ((channel->delta << 16) & 0xff000000) |
897 (channel->eso & 0x00ffffff);
898 data[3] = channel->fm_vol & 0xffff;
904 return trident_load_channel_registers(state->card, data, channel->num);
908 compute_rate_play(u32 rate)
911 /* We special case 44100 and 8000 since rounding with the equation
912 does not give us an accurate enough value. For 11025 and 22050
913 the equation gives us the best answer. All other frequencies will
914 also use the equation. JDW */
917 else if (rate == 8000)
919 else if (rate == 48000)
922 delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
927 compute_rate_rec(u32 rate)
933 else if (rate == 8000)
935 else if (rate == 48000)
938 delta = ((48000 << 12) / rate) & 0x0000ffff;
943 /* set playback sample rate */
945 trident_set_dac_rate(struct trident_state *state, unsigned int rate)
947 struct dmabuf *dmabuf = &state->dmabuf;
955 dmabuf->channel->delta = compute_rate_play(rate);
957 trident_write_voice_regs(state);
959 pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate);
964 /* set recording sample rate */
966 trident_set_adc_rate(struct trident_state *state, unsigned int rate)
968 struct dmabuf *dmabuf = &state->dmabuf;
976 dmabuf->channel->delta = compute_rate_rec(rate);
978 trident_write_voice_regs(state);
980 pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate);
985 /* prepare channel attributes for playback */
987 trident_play_setup(struct trident_state *state)
989 struct dmabuf *dmabuf = &state->dmabuf;
990 struct trident_channel *channel = dmabuf->channel;
992 channel->lba = dmabuf->dma_handle;
993 channel->delta = compute_rate_play(dmabuf->rate);
995 channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
998 if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
999 channel->attribute = 0;
1000 if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
1001 if ((channel->num == ALI_SPDIF_IN_CHANNEL) ||
1002 (channel->num == ALI_PCM_IN_CHANNEL))
1003 ali_disable_special_channel(state->card, channel->num);
1004 else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL))
1005 & ALI_SPDIF_OUT_CH_ENABLE)
1006 && (channel->num == ALI_SPDIF_OUT_CHANNEL)) {
1007 ali_set_spdif_out_rate(state->card,
1008 state->dmabuf.rate);
1009 state->dmabuf.channel->delta = 0x1000;
1014 channel->fm_vol = 0x0;
1016 channel->control = CHANNEL_LOOP;
1017 if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
1019 channel->control |= CHANNEL_16BITS;
1021 channel->control |= CHANNEL_SIGNED;
1023 if (dmabuf->fmt & TRIDENT_FMT_STEREO)
1025 channel->control |= CHANNEL_STEREO;
1027 pr_debug("trident: trident_play_setup, LBA = 0x%08x, Delta = 0x%08x, "
1028 "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
1029 channel->delta, channel->eso, channel->control);
1031 trident_write_voice_regs(state);
1034 /* prepare channel attributes for recording */
1036 trident_rec_setup(struct trident_state *state)
1041 struct trident_card *card = state->card;
1042 struct dmabuf *dmabuf = &state->dmabuf;
1043 struct trident_channel *channel = dmabuf->channel;
1046 /* Enable AC-97 ADC (capture) */
1047 switch (card->pci_id) {
1048 case PCI_DEVICE_ID_ALI_5451:
1049 ali_enable_special_channel(state);
1051 case PCI_DEVICE_ID_SI_7018:
1052 /* for 7018, the ac97 is always in playback/record (duplex) mode */
1054 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
1055 w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT));
1056 outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
1057 /* enable and set record channel */
1058 outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
1060 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
1061 w = inw(TRID_REG(card, T4D_MISCINT));
1062 outw(w | 0x1000, TRID_REG(card, T4D_MISCINT));
1063 /* enable and set record channel */
1064 outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
1066 case PCI_DEVICE_ID_INTERG_5050:
1067 /* don't know yet, using special channel 22 in GC1(0xd4)? */
1073 channel->lba = dmabuf->dma_handle;
1074 channel->delta = compute_rate_rec(dmabuf->rate);
1075 if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) &&
1076 (channel->num == ALI_SPDIF_IN_CHANNEL)) {
1077 rate = ali_get_spdif_in_rate(card);
1079 printk(KERN_WARNING "trident: ALi 5451 "
1080 "S/PDIF input setup error!\n");
1083 bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
1085 outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
1086 printk(KERN_WARNING "trident: cleared ALi "
1087 "5451 S/PDIF parity error flag.\n");
1091 channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff;
1094 channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
1097 if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
1098 channel->attribute = 0;
1101 channel->fm_vol = 0x0;
1103 channel->control = CHANNEL_LOOP;
1104 if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
1106 channel->control |= CHANNEL_16BITS;
1108 channel->control |= CHANNEL_SIGNED;
1110 if (dmabuf->fmt & TRIDENT_FMT_STEREO)
1112 channel->control |= CHANNEL_STEREO;
1114 pr_debug("trident: trident_rec_setup, LBA = 0x%08x, Delat = 0x%08x, "
1115 "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
1116 channel->delta, channel->eso, channel->control);
1118 trident_write_voice_regs(state);
1121 /* get current playback/recording dma buffer pointer (byte offset from LBA),
1122 called with spinlock held! */
1123 static inline unsigned
1124 trident_get_dma_addr(struct trident_state *state)
1126 struct dmabuf *dmabuf = &state->dmabuf;
1129 if (!dmabuf->enable)
1132 outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR));
1134 switch (state->card->pci_id) {
1135 case PCI_DEVICE_ID_ALI_5451:
1136 case PCI_DEVICE_ID_SI_7018:
1137 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
1138 case PCI_DEVICE_ID_INTERG_5050:
1139 /* 16 bits ESO, CSO for 7018 and DX */
1140 cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2));
1142 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
1143 /* 24 bits ESO, CSO for NX */
1144 cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff;
1150 pr_debug("trident: trident_get_dma_addr: chip reported channel: %d, "
1151 "cso = 0x%04x\n", dmabuf->channel->num, cso);
1153 /* ESO and CSO are in units of Samples, convert to byte offset */
1154 cso <<= sample_shift[dmabuf->fmt];
1156 return (cso % dmabuf->dmasize);
1159 /* Stop recording (lock held) */
1161 __stop_adc(struct trident_state *state)
1163 struct dmabuf *dmabuf = &state->dmabuf;
1164 unsigned int chan_num = dmabuf->channel->num;
1165 struct trident_card *card = state->card;
1167 dmabuf->enable &= ~ADC_RUNNING;
1168 trident_stop_voice(card, chan_num);
1169 trident_disable_voice_irq(card, chan_num);
1173 stop_adc(struct trident_state *state)
1175 struct trident_card *card = state->card;
1176 unsigned long flags;
1178 spin_lock_irqsave(&card->lock, flags);
1180 spin_unlock_irqrestore(&card->lock, flags);
1184 start_adc(struct trident_state *state)
1186 struct dmabuf *dmabuf = &state->dmabuf;
1187 unsigned int chan_num = dmabuf->channel->num;
1188 struct trident_card *card = state->card;
1189 unsigned long flags;
1191 spin_lock_irqsave(&card->lock, flags);
1192 if ((dmabuf->mapped ||
1193 dmabuf->count < (signed) dmabuf->dmasize) &&
1195 dmabuf->enable |= ADC_RUNNING;
1196 trident_enable_voice_irq(card, chan_num);
1197 trident_start_voice(card, chan_num);
1199 spin_unlock_irqrestore(&card->lock, flags);
1202 /* stop playback (lock held) */
1204 __stop_dac(struct trident_state *state)
1206 struct dmabuf *dmabuf = &state->dmabuf;
1207 unsigned int chan_num = dmabuf->channel->num;
1208 struct trident_card *card = state->card;
1210 dmabuf->enable &= ~DAC_RUNNING;
1211 trident_stop_voice(card, chan_num);
1212 if (state->chans_num == 6) {
1213 trident_stop_voice(card, state->other_states[0]->
1214 dmabuf.channel->num);
1215 trident_stop_voice(card, state->other_states[1]->
1216 dmabuf.channel->num);
1217 trident_stop_voice(card, state->other_states[2]->
1218 dmabuf.channel->num);
1219 trident_stop_voice(card, state->other_states[3]->
1220 dmabuf.channel->num);
1222 trident_disable_voice_irq(card, chan_num);
1226 stop_dac(struct trident_state *state)
1228 struct trident_card *card = state->card;
1229 unsigned long flags;
1231 spin_lock_irqsave(&card->lock, flags);
1233 spin_unlock_irqrestore(&card->lock, flags);
1237 start_dac(struct trident_state *state)
1239 struct dmabuf *dmabuf = &state->dmabuf;
1240 unsigned int chan_num = dmabuf->channel->num;
1241 struct trident_card *card = state->card;
1242 unsigned long flags;
1244 spin_lock_irqsave(&card->lock, flags);
1245 if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) {
1246 dmabuf->enable |= DAC_RUNNING;
1247 trident_enable_voice_irq(card, chan_num);
1248 trident_start_voice(card, chan_num);
1249 if (state->chans_num == 6) {
1250 trident_start_voice(card, state->other_states[0]->
1251 dmabuf.channel->num);
1252 trident_start_voice(card, state->other_states[1]->
1253 dmabuf.channel->num);
1254 trident_start_voice(card, state->other_states[2]->
1255 dmabuf.channel->num);
1256 trident_start_voice(card, state->other_states[3]->
1257 dmabuf.channel->num);
1260 spin_unlock_irqrestore(&card->lock, flags);
1263 #define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
1264 #define DMABUF_MINORDER 1
1266 /* alloc a DMA buffer of with a buffer of this order */
1268 alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order)
1270 void *rawbuf = NULL;
1271 struct page *page, *pend;
1273 if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order,
1274 &dmabuf->dma_handle)))
1277 pr_debug("trident: allocated %ld (order = %d) bytes at %p\n",
1278 PAGE_SIZE << order, order, rawbuf);
1280 dmabuf->ready = dmabuf->mapped = 0;
1281 dmabuf->rawbuf = rawbuf;
1282 dmabuf->buforder = order;
1284 /* now mark the pages as reserved; otherwise */
1285 /* remap_page_range doesn't do what we want */
1286 pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
1287 for (page = virt_to_page(rawbuf); page <= pend; page++)
1288 SetPageReserved(page);
1293 /* allocate the main DMA buffer, playback and recording buffer should be */
1294 /* allocated separately */
1296 alloc_main_dmabuf(struct trident_state *state)
1298 struct dmabuf *dmabuf = &state->dmabuf;
1302 /* alloc as big a chunk as we can, FIXME: is this necessary ?? */
1303 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
1304 if (!(ret = alloc_dmabuf(dmabuf, state->card->pci_dev, order)))
1306 /* else try again */
1311 /* deallocate a DMA buffer */
1313 dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev)
1315 struct page *page, *pend;
1317 if (dmabuf->rawbuf) {
1318 /* undo marking the pages as reserved */
1319 pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
1320 for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
1321 ClearPageReserved(page);
1322 pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder,
1323 dmabuf->rawbuf, dmabuf->dma_handle);
1324 dmabuf->rawbuf = NULL;
1326 dmabuf->mapped = dmabuf->ready = 0;
1330 prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec)
1332 struct dmabuf *dmabuf = &state->dmabuf;
1333 unsigned bytepersec;
1334 struct trident_state *s = state;
1335 unsigned bufsize, dma_nums;
1336 unsigned long flags;
1339 if ((ret = lock_set_fmt(state)) < 0)
1342 if (state->chans_num == 6)
1347 for (i = 0; i < dma_nums; i++) {
1349 s = state->other_states[i - 1];
1350 dmabuf = &s->dmabuf;
1351 dmabuf->fmt = state->dmabuf.fmt;
1352 dmabuf->rate = state->dmabuf.rate;
1355 spin_lock_irqsave(&s->card->lock, flags);
1356 dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0;
1357 dmabuf->count = dmabuf->error = 0;
1358 spin_unlock_irqrestore(&s->card->lock, flags);
1360 /* allocate DMA buffer if not allocated yet */
1361 if (!dmabuf->rawbuf) {
1363 if ((ret = alloc_main_dmabuf(state))) {
1364 unlock_set_fmt(state);
1369 order = state->dmabuf.buforder - 1;
1370 if (order >= DMABUF_MINORDER) {
1371 ret = alloc_dmabuf(dmabuf,
1372 state->card->pci_dev,
1376 /* release the main DMA buffer */
1377 dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
1378 /* release the auxiliary DMA buffers */
1379 for (i -= 2; i >= 0; i--)
1380 dealloc_dmabuf(&state->other_states[i]->dmabuf,
1381 state->card->pci_dev);
1382 unlock_set_fmt(state);
1387 /* FIXME: figure out all this OSS fragment stuff */
1388 bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt];
1389 bufsize = PAGE_SIZE << dmabuf->buforder;
1390 if (dmabuf->ossfragshift) {
1391 if ((1000 << dmabuf->ossfragshift) < bytepersec)
1392 dmabuf->fragshift = ld2(bytepersec / 1000);
1394 dmabuf->fragshift = dmabuf->ossfragshift;
1396 /* lets hand out reasonable big ass buffers by default */
1397 dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT - 2);
1399 dmabuf->numfrag = bufsize >> dmabuf->fragshift;
1400 while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) {
1401 dmabuf->fragshift--;
1402 dmabuf->numfrag = bufsize >> dmabuf->fragshift;
1404 dmabuf->fragsize = 1 << dmabuf->fragshift;
1405 if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag)
1406 dmabuf->numfrag = dmabuf->ossmaxfrags;
1407 dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt];
1408 dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
1410 memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80,
1413 spin_lock_irqsave(&s->card->lock, flags);
1414 if (rec == DM_RECORD)
1415 trident_rec_setup(s);
1416 else /* DM_PLAYBACK */
1417 trident_play_setup(s);
1419 spin_unlock_irqrestore(&s->card->lock, flags);
1421 /* set the ready flag for the dma buffer */
1424 pr_debug("trident: prog_dmabuf(%d), sample rate = %d, "
1425 "format = %d, numfrag = %d, fragsize = %d "
1426 "dmasize = %d\n", dmabuf->channel->num,
1427 dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
1428 dmabuf->fragsize, dmabuf->dmasize);
1430 unlock_set_fmt(state);
1435 static inline int prog_dmabuf_record(struct trident_state* state)
1437 return prog_dmabuf(state, DM_RECORD);
1440 static inline int prog_dmabuf_playback(struct trident_state* state)
1442 return prog_dmabuf(state, DM_PLAYBACK);
1445 /* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e.
1446 |------------|------------| or |xxxxxxxxxxxx|------------| or |xxxxxxxxxxxx|xxxxxxxxxxxx|
1447 but we almost always get this
1448 |xxxxxx------|------------| or |xxxxxxxxxxxx|xxxxx-------|
1449 so we have to clear the tail space to "silence"
1450 |xxxxxx000000|------------| or |xxxxxxxxxxxx|xxxxxx000000|
1453 trident_clear_tail(struct trident_state *state)
1455 struct dmabuf *dmabuf = &state->dmabuf;
1457 unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80;
1459 unsigned long flags;
1461 spin_lock_irqsave(&state->card->lock, flags);
1462 swptr = dmabuf->swptr;
1463 spin_unlock_irqrestore(&state->card->lock, flags);
1465 if (swptr == 0 || swptr == dmabuf->dmasize / 2 ||
1466 swptr == dmabuf->dmasize)
1469 if (swptr < dmabuf->dmasize / 2)
1470 len = dmabuf->dmasize / 2 - swptr;
1472 len = dmabuf->dmasize - swptr;
1474 memset(dmabuf->rawbuf + swptr, silence, len);
1475 if (state->card->pci_id != PCI_DEVICE_ID_ALI_5451) {
1476 spin_lock_irqsave(&state->card->lock, flags);
1477 dmabuf->swptr += len;
1478 dmabuf->count += len;
1479 spin_unlock_irqrestore(&state->card->lock, flags);
1482 /* restart the dma machine in case it is halted */
1487 drain_dac(struct trident_state *state, int nonblock)
1489 DECLARE_WAITQUEUE(wait, current);
1490 struct dmabuf *dmabuf = &state->dmabuf;
1491 unsigned long flags;
1494 unsigned long diff = 0;
1496 if (dmabuf->mapped || !dmabuf->ready)
1499 add_wait_queue(&dmabuf->wait, &wait);
1501 /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
1502 every time to make the process really go to sleep */
1503 set_current_state(TASK_INTERRUPTIBLE);
1505 spin_lock_irqsave(&state->card->lock, flags);
1506 count = dmabuf->count;
1507 spin_unlock_irqrestore(&state->card->lock, flags);
1512 if (signal_pending(current))
1516 remove_wait_queue(&dmabuf->wait, &wait);
1517 set_current_state(TASK_RUNNING);
1521 /* No matter how much data is left in the buffer, we have to wait until
1522 CSO == ESO/2 or CSO == ESO when address engine interrupts */
1523 if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
1524 state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
1525 diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize;
1526 diff = diff % (dmabuf->dmasize);
1527 tmo = (diff * HZ) / dmabuf->rate;
1529 tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
1531 tmo >>= sample_shift[dmabuf->fmt];
1532 if (!schedule_timeout(tmo ? tmo : 1) && tmo) {
1536 remove_wait_queue(&dmabuf->wait, &wait);
1537 set_current_state(TASK_RUNNING);
1538 if (signal_pending(current))
1539 return -ERESTARTSYS;
1544 /* update buffer manangement pointers, especially, */
1545 /* dmabuf->count and dmabuf->hwptr */
1547 trident_update_ptr(struct trident_state *state)
1549 struct dmabuf *dmabuf = &state->dmabuf;
1550 unsigned hwptr, swptr;
1553 unsigned char silence;
1554 unsigned half_dmasize;
1556 /* update hardware pointer */
1557 hwptr = trident_get_dma_addr(state);
1558 diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
1559 dmabuf->hwptr = hwptr;
1560 dmabuf->total_bytes += diff;
1562 /* error handling and process wake up for ADC */
1563 if (dmabuf->enable == ADC_RUNNING) {
1564 if (dmabuf->mapped) {
1565 dmabuf->count -= diff;
1566 if (dmabuf->count >= (signed) dmabuf->fragsize)
1567 wake_up(&dmabuf->wait);
1569 dmabuf->count += diff;
1571 if (dmabuf->count < 0 ||
1572 dmabuf->count > dmabuf->dmasize) {
1573 /* buffer underrun or buffer overrun, */
1574 /* we have no way to recover it here, just */
1575 /* stop the machine and let the process */
1576 /* force hwptr and swptr to sync */
1580 if (dmabuf->count < (signed) dmabuf->dmasize / 2)
1581 wake_up(&dmabuf->wait);
1585 /* error handling and process wake up for DAC */
1586 if (dmabuf->enable == DAC_RUNNING) {
1587 if (dmabuf->mapped) {
1588 dmabuf->count += diff;
1589 if (dmabuf->count >= (signed) dmabuf->fragsize)
1590 wake_up(&dmabuf->wait);
1592 dmabuf->count -= diff;
1594 if (dmabuf->count < 0 ||
1595 dmabuf->count > dmabuf->dmasize) {
1596 /* buffer underrun or buffer overrun, we have no way to recover
1597 it here, just stop the machine and let the process force hwptr
1598 and swptr to sync */
1601 } else if (!dmabuf->endcleared) {
1602 swptr = dmabuf->swptr;
1603 silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80);
1604 if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) {
1605 /* We must clear end data of 1/2 dmabuf if needed.
1606 According to 1/2 algorithm of Address Engine Interrupt,
1607 check the validation of the data of half dmasize. */
1608 half_dmasize = dmabuf->dmasize / 2;
1609 if ((diff = hwptr - half_dmasize) < 0)
1611 if ((dmabuf->count + diff) < half_dmasize) {
1612 //there is invalid data in the end of half buffer
1613 if ((clear_cnt = half_dmasize - swptr) < 0)
1614 clear_cnt += half_dmasize;
1615 //clear the invalid data
1616 memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
1617 if (state->chans_num == 6) {
1618 clear_cnt = clear_cnt / 2;
1620 memset(state->other_states[0]->dmabuf.rawbuf + swptr,
1621 silence, clear_cnt);
1622 memset(state->other_states[1]->dmabuf.rawbuf + swptr,
1623 silence, clear_cnt);
1624 memset(state->other_states[2]->dmabuf.rawbuf + swptr,
1625 silence, clear_cnt);
1626 memset(state->other_states[3]->dmabuf.rawbuf + swptr,
1627 silence, clear_cnt);
1629 dmabuf->endcleared = 1;
1631 } else if (dmabuf->count < (signed) dmabuf->fragsize) {
1632 clear_cnt = dmabuf->fragsize;
1633 if ((swptr + clear_cnt) > dmabuf->dmasize)
1634 clear_cnt = dmabuf->dmasize - swptr;
1635 memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
1636 if (state->chans_num == 6) {
1637 clear_cnt = clear_cnt / 2;
1639 memset(state->other_states[0]->dmabuf.rawbuf + swptr,
1640 silence, clear_cnt);
1641 memset(state->other_states[1]->dmabuf.rawbuf + swptr,
1642 silence, clear_cnt);
1643 memset(state->other_states[2]->dmabuf.rawbuf + swptr,
1644 silence, clear_cnt);
1645 memset(state->other_states[3]->dmabuf.rawbuf + swptr,
1646 silence, clear_cnt);
1648 dmabuf->endcleared = 1;
1651 /* trident_update_ptr is called by interrupt handler or by process via
1652 ioctl/poll, we only wake up the waiting process when we have more
1653 than 1/2 buffer free (always true for interrupt handler) */
1654 if (dmabuf->count < (signed) dmabuf->dmasize / 2)
1655 wake_up(&dmabuf->wait);
1658 dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE;
1662 trident_address_interrupt(struct trident_card *card)
1665 struct trident_state *state;
1666 unsigned int channel;
1668 /* Update the pointers for all channels we are running. */
1669 /* FIXME: should read interrupt status only once */
1670 for (i = 0; i < NR_HW_CH; i++) {
1672 if (trident_check_channel_interrupt(card, channel)) {
1673 trident_ack_channel_interrupt(card, channel);
1674 if ((state = card->states[i]) != NULL) {
1675 trident_update_ptr(state);
1677 printk(KERN_WARNING "trident: spurious channel "
1678 "irq %d.\n", channel);
1679 trident_stop_voice(card, channel);
1680 trident_disable_voice_irq(card, channel);
1687 ali_hwvol_control(struct trident_card *card, int opt)
1689 u16 dwTemp, volume[2], mute, diff, *pVol[2];
1691 dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02);
1692 mute = dwTemp & 0x8000;
1693 volume[0] = dwTemp & 0x001f;
1694 volume[1] = (dwTemp & 0x1f00) >> 8;
1695 if (volume[0] < volume[1]) {
1696 pVol[0] = &volume[0];
1697 pVol[1] = &volume[1];
1699 pVol[1] = &volume[0];
1700 pVol[0] = &volume[1];
1702 diff = *(pVol[1]) - *(pVol[0]);
1704 if (opt == 1) { // MUTE
1706 ali_ac97_write(card->ac97_codec[0],
1708 } else if (opt == 2) { // Down
1711 if (*(pVol[1]) < 0x001f) {
1713 *(pVol[0]) = *(pVol[1]) - diff;
1716 dwTemp |= (volume[0]) | (volume[1] << 8);
1717 ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
1718 card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
1719 (((32 - volume[1]) * 25 / 8) << 8);
1720 } else if (opt == 4) { // Up
1723 if (*(pVol[0]) > 0) {
1725 *(pVol[1]) = *(pVol[0]) + diff;
1728 dwTemp |= (volume[0]) | (volume[1] << 8);
1729 ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
1730 card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
1731 (((32 - volume[1]) * 25 / 8) << 8);
1733 /* Nothing needs doing */
1738 * Re-enable reporting of vol change after 0.1 seconds
1742 ali_timeout(unsigned long ptr)
1744 struct trident_card *card = (struct trident_card *) ptr;
1747 /* Enable GPIO IRQ (MISCINT bit 18h) */
1748 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
1750 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
1754 * Set up the timer to clear the vol change notification
1758 ali_set_timer(struct trident_card *card)
1760 /* Add Timer Routine to Enable GPIO IRQ */
1761 del_timer(&card->timer); /* Never queue twice */
1762 card->timer.function = ali_timeout;
1763 card->timer.data = (unsigned long) card;
1764 card->timer.expires = jiffies + HZ / 10;
1765 add_timer(&card->timer);
1769 * Process a GPIO event
1773 ali_queue_task(struct trident_card *card, int opt)
1777 /* Disable GPIO IRQ (MISCINT bit 18h) */
1778 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
1779 temp &= (u16) (~0x0004);
1780 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
1782 /* Adjust the volume */
1783 ali_hwvol_control(card, opt);
1785 /* Set the timer for 1/10th sec */
1786 ali_set_timer(card);
1790 cyber_address_interrupt(struct trident_card *card)
1793 struct trident_state *state;
1794 unsigned int channel;
1796 /* Update the pointers for all channels we are running. */
1797 /* FIXED: read interrupt status only once */
1798 irq_status = inl(TRID_REG(card, T4D_AINT_A));
1800 pr_debug("cyber_address_interrupt: irq_status 0x%X\n", irq_status);
1802 for (i = 0; i < NR_HW_CH; i++) {
1804 if (irq_status & (1 << channel)) {
1805 /* clear bit by writing a 1, zeroes are ignored */
1806 outl((1 << channel), TRID_REG(card, T4D_AINT_A));
1808 pr_debug("cyber_interrupt: channel %d\n", channel);
1810 if ((state = card->states[i]) != NULL) {
1811 trident_update_ptr(state);
1813 printk(KERN_WARNING "cyber5050: spurious "
1814 "channel irq %d.\n", channel);
1815 trident_stop_voice(card, channel);
1816 trident_disable_voice_irq(card, channel);
1823 trident_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1825 struct trident_card *card = (struct trident_card *) dev_id;
1829 spin_lock(&card->lock);
1830 event = inl(TRID_REG(card, T4D_MISCINT));
1832 pr_debug("trident: trident_interrupt called, MISCINT = 0x%08x\n",
1835 if (event & ADDRESS_IRQ) {
1836 card->address_interrupt(card);
1839 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
1840 /* GPIO IRQ (H/W Volume Control) */
1841 event = inl(TRID_REG(card, T4D_MISCINT));
1842 if (event & (1 << 25)) {
1843 gpio = inl(TRID_REG(card, ALI_GPIO));
1844 if (!timer_pending(&card->timer))
1845 ali_queue_task(card, gpio & 0x07);
1847 event = inl(TRID_REG(card, T4D_MISCINT));
1848 outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1849 TRID_REG(card, T4D_MISCINT));
1850 spin_unlock(&card->lock);
1854 /* manually clear interrupt status, bad hardware design, blame T^2 */
1855 outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1856 TRID_REG(card, T4D_MISCINT));
1857 spin_unlock(&card->lock);
1861 /* in this loop, dmabuf.count signifies the amount of data that is waiting */
1862 /* to be copied to the user's buffer. it is filled by the dma machine and */
1863 /* drained by this loop. */
1865 trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
1867 struct trident_state *state = (struct trident_state *)file->private_data;
1868 struct dmabuf *dmabuf = &state->dmabuf;
1870 unsigned long flags;
1874 pr_debug("trident: trident_read called, count = %d\n", count);
1876 VALIDATE_STATE(state);
1877 if (ppos != &file->f_pos)
1882 if (!access_ok(VERIFY_WRITE, buffer, count))
1886 if (!dmabuf->ready && (ret = prog_dmabuf_record(state)))
1890 spin_lock_irqsave(&state->card->lock, flags);
1891 if (dmabuf->count > (signed) dmabuf->dmasize) {
1892 /* buffer overrun, we are recovering from */
1893 /* sleep_on_timeout, resync hwptr and swptr, */
1894 /* make process flush the buffer */
1895 dmabuf->count = dmabuf->dmasize;
1896 dmabuf->swptr = dmabuf->hwptr;
1898 swptr = dmabuf->swptr;
1899 cnt = dmabuf->dmasize - swptr;
1900 if (dmabuf->count < cnt)
1901 cnt = dmabuf->count;
1902 spin_unlock_irqrestore(&state->card->lock, flags);
1908 /* buffer is empty, start the dma machine and */
1909 /* wait for data to be recorded */
1911 if (file->f_flags & O_NONBLOCK) {
1918 /* No matter how much space left in the buffer, */
1919 /* we have to wait until CSO == ESO/2 or CSO == ESO */
1920 /* when address engine interrupts */
1921 tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
1922 tmo >>= sample_shift[dmabuf->fmt];
1923 /* There are two situations when sleep_on_timeout returns, one is when
1924 the interrupt is serviced correctly and the process is waked up by
1925 ISR ON TIME. Another is when timeout is expired, which means that
1926 either interrupt is NOT serviced correctly (pending interrupt) or it
1927 is TOO LATE for the process to be scheduled to run (scheduler latency)
1928 which results in a (potential) buffer overrun. And worse, there is
1929 NOTHING we can do to prevent it. */
1930 if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
1931 pr_debug(KERN_ERR "trident: recording schedule timeout, "
1932 "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
1933 dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
1934 dmabuf->hwptr, dmabuf->swptr);
1936 /* a buffer overrun, we delay the recovery until next time the
1937 while loop begin and we REALLY have space to record */
1939 if (signal_pending(current)) {
1945 if (dmabuf->mapped) {
1953 if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
1959 swptr = (swptr + cnt) % dmabuf->dmasize;
1961 spin_lock_irqsave(&state->card->lock, flags);
1962 dmabuf->swptr = swptr;
1963 dmabuf->count -= cnt;
1964 spin_unlock_irqrestore(&state->card->lock, flags);
1976 /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
1977 the soundcard. it is drained by the dma machine and filled by this loop. */
1980 trident_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos)
1982 struct trident_state *state = (struct trident_state *)file->private_data;
1983 struct dmabuf *dmabuf = &state->dmabuf;
1985 unsigned long flags;
1988 unsigned int state_cnt;
1989 unsigned int copy_count;
1990 int lret; /* for lock_set_fmt */
1992 pr_debug("trident: trident_write called, count = %d\n", count);
1994 VALIDATE_STATE(state);
1995 if (ppos != &file->f_pos)
1999 * Guard against an mmap or ioctl while writing
2004 if (dmabuf->mapped) {
2008 if (!dmabuf->ready && (ret = prog_dmabuf_playback(state)))
2011 if (!access_ok(VERIFY_READ, buffer, count)) {
2019 spin_lock_irqsave(&state->card->lock, flags);
2020 if (dmabuf->count < 0) {
2021 /* buffer underrun, we are recovering from */
2022 /* sleep_on_timeout, resync hwptr and swptr */
2024 dmabuf->swptr = dmabuf->hwptr;
2026 swptr = dmabuf->swptr;
2027 cnt = dmabuf->dmasize - swptr;
2028 if (dmabuf->count + cnt > dmabuf->dmasize)
2029 cnt = dmabuf->dmasize - dmabuf->count;
2030 spin_unlock_irqrestore(&state->card->lock, flags);
2036 /* buffer is full, start the dma machine and */
2037 /* wait for data to be played */
2039 if (file->f_flags & O_NONBLOCK) {
2044 /* No matter how much data left in the buffer, */
2045 /* we have to wait until CSO == ESO/2 or CSO == ESO */
2046 /* when address engine interrupts */
2047 lock_set_fmt(state);
2048 tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
2049 tmo >>= sample_shift[dmabuf->fmt];
2050 unlock_set_fmt(state);
2053 /* There are two situations when sleep_on_timeout */
2054 /* returns, one is when the interrupt is serviced */
2055 /* correctly and the process is waked up by ISR */
2056 /* ON TIME. Another is when timeout is expired, which */
2057 /* means that either interrupt is NOT serviced */
2058 /* correctly (pending interrupt) or it is TOO LATE */
2059 /* for the process to be scheduled to run */
2060 /* (scheduler latency) which results in a (potential) */
2061 /* buffer underrun. And worse, there is NOTHING we */
2062 /* can do to prevent it. */
2063 if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
2064 pr_debug(KERN_ERR "trident: playback schedule "
2065 "timeout, dmasz %u fragsz %u count %i "
2066 "hwptr %u swptr %u\n", dmabuf->dmasize,
2067 dmabuf->fragsize, dmabuf->count,
2068 dmabuf->hwptr, dmabuf->swptr);
2070 /* a buffer underrun, we delay the recovery */
2071 /* until next time the while loop begin and */
2072 /* we REALLY have data to play */
2074 if (signal_pending(current)) {
2080 if (dmabuf->mapped) {
2087 if ((lret = lock_set_fmt(state)) < 0) {
2092 if (state->chans_num == 6) {
2095 if (ali_write_5_1(state, buffer, cnt, ©_count,
2096 &state_cnt) == -EFAULT) {
2098 swptr = (swptr + state_cnt) % dmabuf->dmasize;
2099 spin_lock_irqsave(&state->card->lock, flags);
2100 dmabuf->swptr = swptr;
2101 dmabuf->count += state_cnt;
2102 dmabuf->endcleared = 0;
2103 spin_unlock_irqrestore(&state->card->lock, flags);
2108 unlock_set_fmt(state);
2112 if (copy_from_user(dmabuf->rawbuf + swptr,
2116 unlock_set_fmt(state);
2121 unlock_set_fmt(state);
2123 swptr = (swptr + state_cnt) % dmabuf->dmasize;
2125 spin_lock_irqsave(&state->card->lock, flags);
2126 dmabuf->swptr = swptr;
2127 dmabuf->count += state_cnt;
2128 dmabuf->endcleared = 0;
2129 spin_unlock_irqrestore(&state->card->lock, flags);
2142 /* No kernel lock - we have our own spinlock */
2144 trident_poll(struct file *file, struct poll_table_struct *wait)
2146 struct trident_state *state = (struct trident_state *)file->private_data;
2147 struct dmabuf *dmabuf = &state->dmabuf;
2148 unsigned long flags;
2149 unsigned int mask = 0;
2151 VALIDATE_STATE(state);
2154 * Guard against a parallel poll and write causing multiple
2155 * prog_dmabuf events
2160 if (file->f_mode & FMODE_WRITE) {
2161 if (!dmabuf->ready && prog_dmabuf_playback(state)) {
2165 poll_wait(file, &dmabuf->wait, wait);
2167 if (file->f_mode & FMODE_READ) {
2168 if (!dmabuf->ready && prog_dmabuf_record(state)) {
2172 poll_wait(file, &dmabuf->wait, wait);
2177 spin_lock_irqsave(&state->card->lock, flags);
2178 trident_update_ptr(state);
2179 if (file->f_mode & FMODE_READ) {
2180 if (dmabuf->count >= (signed) dmabuf->fragsize)
2181 mask |= POLLIN | POLLRDNORM;
2183 if (file->f_mode & FMODE_WRITE) {
2184 if (dmabuf->mapped) {
2185 if (dmabuf->count >= (signed) dmabuf->fragsize)
2186 mask |= POLLOUT | POLLWRNORM;
2188 if ((signed) dmabuf->dmasize >= dmabuf->count +
2189 (signed) dmabuf->fragsize)
2190 mask |= POLLOUT | POLLWRNORM;
2193 spin_unlock_irqrestore(&state->card->lock, flags);
2199 trident_mmap(struct file *file, struct vm_area_struct *vma)
2201 struct trident_state *state = (struct trident_state *)file->private_data;
2202 struct dmabuf *dmabuf = &state->dmabuf;
2206 VALIDATE_STATE(state);
2209 * Lock against poll read write or mmap creating buffers. Also lock
2210 * a read or write against an mmap.
2215 if (vma->vm_flags & VM_WRITE) {
2216 if ((ret = prog_dmabuf_playback(state)) != 0)
2218 } else if (vma->vm_flags & VM_READ) {
2219 if ((ret = prog_dmabuf_record(state)) != 0)
2225 if (vma->vm_pgoff != 0)
2227 size = vma->vm_end - vma->vm_start;
2228 if (size > (PAGE_SIZE << dmabuf->buforder))
2231 if (remap_page_range(vma, vma->vm_start, virt_to_phys(dmabuf->rawbuf),
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);
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, u32 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 struct proc_dir_entry *res;
4023 ali_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data)
4025 struct trident_card *card = (struct trident_card *) data;
4026 unsigned long flags;
4033 if (get_user(c, buffer))
4036 spin_lock_irqsave(&card->lock, flags);
4039 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4040 ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
4043 ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
4047 ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
4048 ALI_SPDIF_OUT_NON_PCM);
4051 ali_disable_spdif_in(card); //default
4054 ali_setup_spdif_in(card);
4057 spin_unlock_irqrestore(&card->lock, flags);
4062 /* OSS /dev/mixer file operation methods */
4064 trident_open_mixdev(struct inode *inode, struct file *file)
4067 int minor = iminor(inode);
4068 struct trident_card *card = devs;
4070 for (card = devs; card != NULL; card = card->next)
4071 for (i = 0; i < NR_AC97; i++)
4072 if (card->ac97_codec[i] != NULL &&
4073 card->ac97_codec[i]->dev_mixer == minor)
4080 file->private_data = card->ac97_codec[i];
4086 trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
4089 struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
4091 return codec->mixer_ioctl(codec, cmd, arg);
4094 static /*const */ struct file_operations trident_mixer_fops = {
4095 .owner = THIS_MODULE,
4096 .llseek = no_llseek,
4097 .ioctl = trident_ioctl_mixdev,
4098 .open = trident_open_mixdev,
4102 ali_reset_5451(struct trident_card *card)
4104 struct pci_dev *pci_dev = NULL;
4106 unsigned short wCount, wReg;
4108 pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
4110 if (pci_dev == NULL)
4113 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
4114 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
4116 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
4117 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
4120 pci_dev = card->pci_dev;
4121 if (pci_dev == NULL)
4124 pci_read_config_dword(pci_dev, 0x44, &dwVal);
4125 pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
4127 pci_read_config_dword(pci_dev, 0x44, &dwVal);
4128 pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
4131 /* TODO: recognize if we have a PM capable codec and only do this */
4132 /* if the codec is PM capable */
4135 wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
4136 if ((wReg & 0x000f) == 0x000f)
4140 /* This is non fatal if you have a non PM capable codec.. */
4144 /* AC97 codec initialisation. */
4145 static int __devinit
4146 trident_ac97_init(struct trident_card *card)
4149 unsigned long ready_2nd = 0;
4150 struct ac97_codec *codec;
4153 /* initialize controller side of AC link, and find out if secondary codes
4155 switch (card->pci_id) {
4156 case PCI_DEVICE_ID_ALI_5451:
4157 if (ali_reset_5451(card)) {
4158 printk(KERN_ERR "trident_ac97_init: error "
4159 "resetting 5451.\n");
4162 outl(0x80000001, TRID_REG(card, ALI_GLOBAL_CONTROL));
4163 outl(0x00000000, TRID_REG(card, T4D_AINTEN_A));
4164 outl(0xffffffff, TRID_REG(card, T4D_AINT_A));
4165 outl(0x00000000, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
4166 outb(0x10, TRID_REG(card, ALI_MPUR2));
4167 ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
4168 ready_2nd &= 0x3fff;
4169 outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL));
4170 ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
4171 ready_2nd &= SI_AC97_SECONDARY_READY;
4172 if (card->revision < ALI_5451_V02)
4175 case PCI_DEVICE_ID_SI_7018:
4176 /* disable AC97 GPIO interrupt */
4177 outl(0x00, TRID_REG(card, SI_AC97_GPIO));
4178 /* when power up the AC link is in cold reset mode so stop it */
4179 outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID,
4180 TRID_REG(card, SI_SERIAL_INTF_CTRL));
4181 /* it take a long time to recover from a cold reset */
4182 /* (especially when you have more than one codec) */
4184 ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
4185 ready_2nd &= SI_AC97_SECONDARY_READY;
4187 case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
4189 outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
4191 case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
4192 /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */
4193 outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT));
4194 ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT));
4195 ready_2nd &= NX_AC97_SECONDARY_READY;
4197 case PCI_DEVICE_ID_INTERG_5050:
4198 /* disable AC97 GPIO interrupt */
4199 outl(0x00, TRID_REG(card, SI_AC97_GPIO));
4200 /* when power up, the AC link is in cold reset mode, so stop it */
4201 outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT,
4202 TRID_REG(card, SI_SERIAL_INTF_CTRL));
4203 /* it take a long time to recover from a cold reset (especially */
4204 /* when you have more than one codec) */
4206 ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
4207 ready_2nd &= SI_AC97_SECONDARY_READY;
4211 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
4212 if ((codec = ac97_alloc_codec()) == NULL)
4215 /* initialize some basic codec information, other fields */
4216 /* will be filled in ac97_probe_codec */
4217 codec->private_data = card;
4218 codec->id = num_ac97;
4220 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4221 codec->codec_read = ali_ac97_read;
4222 codec->codec_write = ali_ac97_write;
4224 codec->codec_read = trident_ac97_get;
4225 codec->codec_write = trident_ac97_set;
4228 if (ac97_probe_codec(codec) == 0)
4231 codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1);
4232 if (codec->dev_mixer < 0) {
4233 printk(KERN_ERR "trident: couldn't register mixer!\n");
4234 ac97_release_codec(codec);
4238 card->ac97_codec[num_ac97] = codec;
4240 /* if there is no secondary codec at all, don't probe any more */
4245 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4246 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
4247 if (card->ac97_codec[num_ac97] == NULL)
4249 for (i = 0; i < 64; i++) {
4250 u16 reg = ali_ac97_get(card, num_ac97, i * 2);
4251 card->mixer_regs[i][num_ac97] = reg;
4255 return num_ac97 + 1;
4258 /* Gameport functions for the cards ADC gameport */
4260 static unsigned char
4261 trident_game_read(struct gameport *gameport)
4263 struct trident_card *card = gameport->driver;
4264 return inb(TRID_REG(card, T4D_GAME_LEG));
4268 trident_game_trigger(struct gameport *gameport)
4270 struct trident_card *card = gameport->driver;
4271 outb(0xff, TRID_REG(card, T4D_GAME_LEG));
4275 trident_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
4277 struct trident_card *card = gameport->driver;
4280 *buttons = (~inb(TRID_REG(card, T4D_GAME_LEG)) >> 4) & 0xf;
4282 for (i = 0; i < 4; i++) {
4283 axes[i] = inw(TRID_REG(card, T4D_GAME_AXD) + i * sizeof (u16));
4284 if (axes[i] == 0xffff)
4292 trident_game_open(struct gameport *gameport, int mode)
4294 struct trident_card *card = gameport->driver;
4297 case GAMEPORT_MODE_COOKED:
4298 outb(0x80, TRID_REG(card, T4D_GAME_CR));
4301 case GAMEPORT_MODE_RAW:
4302 outb(0x00, TRID_REG(card, T4D_GAME_CR));
4311 /* install the driver, we do not allocate hardware channel nor DMA buffer */
4312 /* now, they are defered until "ACCESS" time (in prog_dmabuf called by */
4313 /* open/read/write/ioctl/mmap) */
4314 static int __devinit
4315 trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
4317 unsigned long iobase;
4318 struct trident_card *card;
4323 struct pci_dev *pci_dev_m1533 = NULL;
4327 if (pci_enable_device(pci_dev))
4330 if (pci_dev->device == PCI_DEVICE_ID_ALI_5451)
4331 dma_mask = ALI_DMA_MASK;
4333 dma_mask = TRIDENT_DMA_MASK;
4334 if (pci_set_dma_mask(pci_dev, dma_mask)) {
4335 printk(KERN_ERR "trident: architecture does not support"
4336 " %s PCI busmaster DMA\n",
4337 pci_dev->device == PCI_DEVICE_ID_ALI_5451 ?
4338 "32-bit" : "30-bit");
4341 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
4343 if (pci_id->device == PCI_DEVICE_ID_INTERG_5050)
4344 iobase = pci_resource_start(pci_dev, 1);
4346 iobase = pci_resource_start(pci_dev, 0);
4348 if (!request_region(iobase, 256, card_names[pci_id->driver_data])) {
4349 printk(KERN_ERR "trident: can't allocate I/O space at "
4350 "0x%4.4lx\n", iobase);
4355 if ((card = kmalloc(sizeof(*card), GFP_KERNEL)) == NULL) {
4356 printk(KERN_ERR "trident: out of memory\n");
4357 goto out_release_region;
4359 memset(card, 0, sizeof (*card));
4361 init_timer(&card->timer);
4362 card->iobase = iobase;
4363 card->pci_dev = pci_dev;
4364 card->pci_id = pci_id->device;
4365 card->revision = revision;
4366 card->irq = pci_dev->irq;
4368 card->magic = TRIDENT_CARD_MAGIC;
4369 card->banks[BANK_A].addresses = &bank_a_addrs;
4370 card->banks[BANK_A].bitmap = 0UL;
4371 card->banks[BANK_B].addresses = &bank_b_addrs;
4372 card->banks[BANK_B].bitmap = 0UL;
4374 card->gameport.driver = card;
4375 card->gameport.fuzz = 64;
4376 card->gameport.read = trident_game_read;
4377 card->gameport.trigger = trident_game_trigger;
4378 card->gameport.cooked_read = trident_game_cooked_read;
4379 card->gameport.open = trident_game_open;
4381 init_MUTEX(&card->open_sem);
4382 spin_lock_init(&card->lock);
4383 init_timer(&card->timer);
4387 pci_set_master(pci_dev);
4389 printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n",
4390 card_names[pci_id->driver_data], card->iobase, card->irq);
4392 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4393 /* ALi channel Management */
4394 card->alloc_pcm_channel = ali_alloc_pcm_channel;
4395 card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
4396 card->free_pcm_channel = ali_free_pcm_channel;
4398 card->address_interrupt = ali_address_interrupt;
4400 /* Added by Matt Wu 01-05-2001 for spdif in */
4401 card->multi_channel_use_count = 0;
4402 card->rec_channel_use_count = 0;
4404 /* ALi SPDIF OUT function */
4405 if (card->revision == ALI_5451_V02) {
4406 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4407 res = create_proc_entry("ALi5451", 0, NULL);
4409 res->write_proc = ali_write_proc;
4414 /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
4416 pci_dev_m1533 = pci_find_device(PCI_VENDOR_ID_AL,
4417 PCI_DEVICE_ID_AL_M1533,
4420 if (pci_dev_m1533 == NULL)
4422 pci_read_config_byte(pci_dev_m1533, 0x63, &bits);
4423 if (bits & (1 << 5))
4425 if (card->hwvolctl) {
4426 /* Clear m1533 pci cfg 78h bit 30 to zero, which makes
4427 GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */
4428 pci_read_config_byte(pci_dev_m1533, 0x7b, &bits);
4429 bits &= 0xbf; /*clear bit 6 */
4430 pci_write_config_byte(pci_dev_m1533, 0x7b, bits);
4432 } else if (card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
4433 card->alloc_pcm_channel = cyber_alloc_pcm_channel;
4434 card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel;
4435 card->free_pcm_channel = cyber_free_pcm_channel;
4436 card->address_interrupt = cyber_address_interrupt;
4437 cyber_init_ritual(card);
4439 card->alloc_pcm_channel = trident_alloc_pcm_channel;
4440 card->alloc_rec_pcm_channel = trident_alloc_pcm_channel;
4441 card->free_pcm_channel = trident_free_pcm_channel;
4442 card->address_interrupt = trident_address_interrupt;
4447 if (request_irq(card->irq, &trident_interrupt, SA_SHIRQ,
4448 card_names[pci_id->driver_data], card)) {
4449 printk(KERN_ERR "trident: unable to allocate irq %d\n",
4453 /* register /dev/dsp */
4454 if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) {
4455 printk(KERN_ERR "trident: couldn't register DSP device!\n");
4458 card->mixer_regs_ready = 0;
4459 /* initialize AC97 codec and register /dev/mixer */
4460 if (trident_ac97_init(card) <= 0) {
4461 /* unregister audio devices */
4462 for (i = 0; i < NR_AC97; i++) {
4463 if (card->ac97_codec[i] != NULL) {
4464 struct ac97_codec* codec = card->ac97_codec[i];
4465 unregister_sound_mixer(codec->dev_mixer);
4466 ac97_release_codec(codec);
4469 goto out_unregister_sound_dsp;
4471 card->mixer_regs_ready = 1;
4472 outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
4474 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4475 /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
4476 if (card->hwvolctl) {
4477 /* Enable GPIO IRQ (MISCINT bit 18h) */
4478 temp = inw(TRID_REG(card, T4D_MISCINT + 2));
4480 outw(temp, TRID_REG(card, T4D_MISCINT + 2));
4482 /* Enable H/W Volume Control GLOVAL CONTROL bit 0 */
4483 temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
4485 outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL));
4488 if (card->revision == ALI_5451_V02)
4489 ali_close_multi_channels();
4490 /* edited by HMSEO for GT sound */
4491 #if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
4494 extern struct hwrpb_struct *hwrpb;
4496 if ((hwrpb->sys_type) == 201) {
4497 printk(KERN_INFO "trident: Running on Alpha system "
4499 ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
4500 ali_ac97_set(card, 0, AC97_POWER_CONTROL,
4501 ac97_data | ALI_EAPD_POWER_DOWN);
4504 #endif /* CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC */
4505 /* edited by HMSEO for GT sound */
4508 pci_set_drvdata(pci_dev, card);
4510 /* Enable Address Engine Interrupts */
4511 trident_enable_loop_interrupts(card);
4513 /* Register gameport */
4514 gameport_register_port(&card->gameport);
4519 out_unregister_sound_dsp:
4520 unregister_sound_dsp(card->dev_audio);
4522 free_irq(card->irq, card);
4525 remove_proc_entry("ALi5451", NULL);
4531 release_region(iobase, 256);
4535 static void __devexit
4536 trident_remove(struct pci_dev *pci_dev)
4539 struct trident_card *card = pci_get_drvdata(pci_dev);
4542 * Kill running timers before unload. We can't have them
4543 * going off after rmmod!
4546 del_timer_sync(&card->timer);
4548 /* ALi S/PDIF and Power Management */
4549 if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
4550 ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
4551 ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
4552 ali_disable_spdif_in(card);
4553 remove_proc_entry("ALi5451", NULL);
4556 /* Unregister gameport */
4557 gameport_unregister_port(&card->gameport);
4559 /* Kill interrupts, and SP/DIF */
4560 trident_disable_loop_interrupts(card);
4562 /* free hardware resources */
4563 free_irq(card->irq, card);
4564 release_region(card->iobase, 256);
4566 /* unregister audio devices */
4567 for (i = 0; i < NR_AC97; i++)
4568 if (card->ac97_codec[i] != NULL) {
4569 unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
4570 ac97_release_codec(card->ac97_codec[i]);
4572 unregister_sound_dsp(card->dev_audio);
4576 pci_set_drvdata(pci_dev, NULL);
4579 MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee, Muli Ben-Yehuda");
4580 MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI "
4582 MODULE_LICENSE("GPL");
4584 #define TRIDENT_MODULE_NAME "trident"
4586 static struct pci_driver trident_pci_driver = {
4587 .name = TRIDENT_MODULE_NAME,
4588 .id_table = trident_pci_tbl,
4589 .probe = trident_probe,
4590 .remove = __devexit_p(trident_remove),
4591 .suspend = trident_suspend,
4592 .resume = trident_resume
4596 trident_init_module(void)
4598 printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro "
4599 "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " "
4602 if (!pci_register_driver(&trident_pci_driver)) {
4603 pci_unregister_driver(&trident_pci_driver);
4610 trident_cleanup_module(void)
4612 pci_unregister_driver(&trident_pci_driver);
4615 module_init(trident_init_module);
4616 module_exit(trident_cleanup_module);