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-rw-r--r--sound/oss/ymfpci.c2691
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diff --git a/sound/oss/ymfpci.c b/sound/oss/ymfpci.c
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+/*
+ * Copyright 1999 Jaroslav Kysela <perex@suse.cz>
+ * Copyright 2000 Alan Cox <alan@redhat.com>
+ * Copyright 2001 Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
+ * Copyright 2002 Pete Zaitcev <zaitcev@yahoo.com>
+ *
+ * Yamaha YMF7xx driver.
+ *
+ * This code is a result of high-speed collision
+ * between ymfpci.c of ALSA and cs46xx.c of Linux.
+ * -- Pete Zaitcev <zaitcev@yahoo.com>; 2000/09/18
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * TODO:
+ * - Use P44Slot for 44.1 playback (beware of idle buzzing in P44Slot).
+ * - 96KHz playback for DVD - use pitch of 2.0.
+ * - Retain DMA buffer on close, do not wait the end of frame.
+ * - Resolve XXX tagged questions.
+ * - Cannot play 5133Hz.
+ * - 2001/01/07 Consider if we can remove voice_lock, like so:
+ * : Allocate/deallocate voices in open/close under semafore.
+ * : We access voices in interrupt, that only for pcms that open.
+ * voice_lock around playback_prepare closes interrupts for insane duration.
+ * - Revisit the way voice_alloc is done - too confusing, overcomplicated.
+ * Should support various channel types, however.
+ * - Remove prog_dmabuf from read/write, leave it in open.
+ * - 2001/01/07 Replace the OPL3 part of CONFIG_SOUND_YMFPCI_LEGACY code with
+ * native synthesizer through a playback slot.
+ * - 2001/11/29 ac97_save_state
+ * Talk to Kai to remove ac97_save_state before it's too late!
+ * - Second AC97
+ * - Restore S/PDIF - Toshibas have it.
+ *
+ * Kai used pci_alloc_consistent for DMA buffer, which sounds a little
+ * unconventional. However, given how small our fragments can be,
+ * a little uncached access is perhaps better than endless flushing.
+ * On i386 and other I/O-coherent architectures pci_alloc_consistent
+ * is entirely harmless.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/soundcard.h>
+#include <linux/ac97_codec.h>
+#include <linux/sound.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+# include "sound_config.h"
+# include "mpu401.h"
+#endif
+#include "ymfpci.h"
+
+/*
+ * I do not believe in debug levels as I never can guess what
+ * part of the code is going to be problematic in the future.
+ * Don't forget to run your klogd with -c 8.
+ *
+ * Example (do not remove):
+ * #define YMFDBG(fmt, arg...) do{ printk(KERN_DEBUG fmt, ##arg); }while(0)
+ */
+#define YMFDBGW(fmt, arg...) /* */ /* write counts */
+#define YMFDBGI(fmt, arg...) /* */ /* interrupts */
+#define YMFDBGX(fmt, arg...) /* */ /* ioctl */
+
+static int ymf_playback_trigger(ymfpci_t *unit, struct ymf_pcm *ypcm, int cmd);
+static void ymf_capture_trigger(ymfpci_t *unit, struct ymf_pcm *ypcm, int cmd);
+static void ymfpci_voice_free(ymfpci_t *unit, ymfpci_voice_t *pvoice);
+static int ymf_capture_alloc(struct ymf_unit *unit, int *pbank);
+static int ymf_playback_prepare(struct ymf_state *state);
+static int ymf_capture_prepare(struct ymf_state *state);
+static struct ymf_state *ymf_state_alloc(ymfpci_t *unit);
+
+static void ymfpci_aclink_reset(struct pci_dev * pci);
+static void ymfpci_disable_dsp(ymfpci_t *unit);
+static void ymfpci_download_image(ymfpci_t *codec);
+static void ymf_memload(ymfpci_t *unit);
+
+static DEFINE_SPINLOCK(ymf_devs_lock);
+static LIST_HEAD(ymf_devs);
+
+/*
+ * constants
+ */
+
+static struct pci_device_id ymf_id_tbl[] = {
+#define DEV(v, d, data) \
+ { PCI_VENDOR_ID_##v, PCI_DEVICE_ID_##v##_##d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long)data }
+ DEV (YAMAHA, 724, "YMF724"),
+ DEV (YAMAHA, 724F, "YMF724F"),
+ DEV (YAMAHA, 740, "YMF740"),
+ DEV (YAMAHA, 740C, "YMF740C"),
+ DEV (YAMAHA, 744, "YMF744"),
+ DEV (YAMAHA, 754, "YMF754"),
+#undef DEV
+ { }
+};
+MODULE_DEVICE_TABLE(pci, ymf_id_tbl);
+
+/*
+ * common I/O routines
+ */
+
+static inline void ymfpci_writeb(ymfpci_t *codec, u32 offset, u8 val)
+{
+ writeb(val, codec->reg_area_virt + offset);
+}
+
+static inline u16 ymfpci_readw(ymfpci_t *codec, u32 offset)
+{
+ return readw(codec->reg_area_virt + offset);
+}
+
+static inline void ymfpci_writew(ymfpci_t *codec, u32 offset, u16 val)
+{
+ writew(val, codec->reg_area_virt + offset);
+}
+
+static inline u32 ymfpci_readl(ymfpci_t *codec, u32 offset)
+{
+ return readl(codec->reg_area_virt + offset);
+}
+
+static inline void ymfpci_writel(ymfpci_t *codec, u32 offset, u32 val)
+{
+ writel(val, codec->reg_area_virt + offset);
+}
+
+static int ymfpci_codec_ready(ymfpci_t *codec, int secondary, int sched)
+{
+ signed long end_time;
+ u32 reg = secondary ? YDSXGR_SECSTATUSADR : YDSXGR_PRISTATUSADR;
+
+ end_time = jiffies + 3 * (HZ / 4);
+ do {
+ if ((ymfpci_readw(codec, reg) & 0x8000) == 0)
+ return 0;
+ if (sched) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ }
+ } while (end_time - (signed long)jiffies >= 0);
+ printk(KERN_ERR "ymfpci_codec_ready: codec %i is not ready [0x%x]\n",
+ secondary, ymfpci_readw(codec, reg));
+ return -EBUSY;
+}
+
+static void ymfpci_codec_write(struct ac97_codec *dev, u8 reg, u16 val)
+{
+ ymfpci_t *codec = dev->private_data;
+ u32 cmd;
+
+ spin_lock(&codec->ac97_lock);
+ /* XXX Do make use of dev->id */
+ ymfpci_codec_ready(codec, 0, 0);
+ cmd = ((YDSXG_AC97WRITECMD | reg) << 16) | val;
+ ymfpci_writel(codec, YDSXGR_AC97CMDDATA, cmd);
+ spin_unlock(&codec->ac97_lock);
+}
+
+static u16 _ymfpci_codec_read(ymfpci_t *unit, u8 reg)
+{
+ int i;
+
+ if (ymfpci_codec_ready(unit, 0, 0))
+ return ~0;
+ ymfpci_writew(unit, YDSXGR_AC97CMDADR, YDSXG_AC97READCMD | reg);
+ if (ymfpci_codec_ready(unit, 0, 0))
+ return ~0;
+ if (unit->pci->device == PCI_DEVICE_ID_YAMAHA_744 && unit->rev < 2) {
+ for (i = 0; i < 600; i++)
+ ymfpci_readw(unit, YDSXGR_PRISTATUSDATA);
+ }
+ return ymfpci_readw(unit, YDSXGR_PRISTATUSDATA);
+}
+
+static u16 ymfpci_codec_read(struct ac97_codec *dev, u8 reg)
+{
+ ymfpci_t *unit = dev->private_data;
+ u16 ret;
+
+ spin_lock(&unit->ac97_lock);
+ ret = _ymfpci_codec_read(unit, reg);
+ spin_unlock(&unit->ac97_lock);
+
+ return ret;
+}
+
+/*
+ * Misc routines
+ */
+
+/*
+ * Calculate the actual sampling rate relatetively to the base clock (48kHz).
+ */
+static u32 ymfpci_calc_delta(u32 rate)
+{
+ switch (rate) {
+ case 8000: return 0x02aaab00;
+ case 11025: return 0x03accd00;
+ case 16000: return 0x05555500;
+ case 22050: return 0x07599a00;
+ case 32000: return 0x0aaaab00;
+ case 44100: return 0x0eb33300;
+ default: return ((rate << 16) / 48000) << 12;
+ }
+}
+
+static u32 def_rate[8] = {
+ 100, 2000, 8000, 11025, 16000, 22050, 32000, 48000
+};
+
+static u32 ymfpci_calc_lpfK(u32 rate)
+{
+ u32 i;
+ static u32 val[8] = {
+ 0x00570000, 0x06AA0000, 0x18B20000, 0x20930000,
+ 0x2B9A0000, 0x35A10000, 0x3EAA0000, 0x40000000
+ };
+
+ if (rate == 44100)
+ return 0x40000000; /* FIXME: What's the right value? */
+ for (i = 0; i < 8; i++)
+ if (rate <= def_rate[i])
+ return val[i];
+ return val[0];
+}
+
+static u32 ymfpci_calc_lpfQ(u32 rate)
+{
+ u32 i;
+ static u32 val[8] = {
+ 0x35280000, 0x34A70000, 0x32020000, 0x31770000,
+ 0x31390000, 0x31C90000, 0x33D00000, 0x40000000
+ };
+
+ if (rate == 44100)
+ return 0x370A0000;
+ for (i = 0; i < 8; i++)
+ if (rate <= def_rate[i])
+ return val[i];
+ return val[0];
+}
+
+static u32 ymf_calc_lend(u32 rate)
+{
+ return (rate * YMF_SAMPF) / 48000;
+}
+
+/*
+ * We ever allow only a few formats, but let's be generic, for smaller surprise.
+ */
+static int ymf_pcm_format_width(int format)
+{
+ static int mask16 = AFMT_S16_LE|AFMT_S16_BE|AFMT_U16_LE|AFMT_U16_BE;
+
+ if ((format & (format-1)) != 0) {
+ printk(KERN_ERR "ymfpci: format 0x%x is not a power of 2\n", format);
+ return 8;
+ }
+
+ if (format == AFMT_IMA_ADPCM) return 4;
+ if ((format & mask16) != 0) return 16;
+ return 8;
+}
+
+static void ymf_pcm_update_shift(struct ymf_pcm_format *f)
+{
+ f->shift = 0;
+ if (f->voices == 2)
+ f->shift++;
+ if (ymf_pcm_format_width(f->format) == 16)
+ f->shift++;
+}
+
+/* Are you sure 32K is not too much? See if mpg123 skips on loaded systems. */
+#define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
+#define DMABUF_MINORDER 1
+
+/*
+ * Allocate DMA buffer
+ */
+static int alloc_dmabuf(ymfpci_t *unit, struct ymf_dmabuf *dmabuf)
+{
+ void *rawbuf = NULL;
+ dma_addr_t dma_addr;
+ int order;
+ struct page *map, *mapend;
+
+ /* alloc as big a chunk as we can */
+ for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
+ rawbuf = pci_alloc_consistent(unit->pci, PAGE_SIZE << order, &dma_addr);
+ if (rawbuf)
+ break;
+ }
+ if (!rawbuf)
+ return -ENOMEM;
+
+#if 0
+ printk(KERN_DEBUG "ymfpci: allocated %ld (order = %d) bytes at %p\n",
+ PAGE_SIZE << order, order, rawbuf);
+#endif
+
+ dmabuf->ready = dmabuf->mapped = 0;
+ dmabuf->rawbuf = rawbuf;
+ dmabuf->dma_addr = dma_addr;
+ dmabuf->buforder = order;
+
+ /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
+ mapend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
+ for (map = virt_to_page(rawbuf); map <= mapend; map++)
+ set_bit(PG_reserved, &map->flags);
+
+ return 0;
+}
+
+/*
+ * Free DMA buffer
+ */
+static void dealloc_dmabuf(ymfpci_t *unit, struct ymf_dmabuf *dmabuf)
+{
+ struct page *map, *mapend;
+
+ if (dmabuf->rawbuf) {
+ /* undo marking the pages as reserved */
+ mapend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
+ for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++)
+ clear_bit(PG_reserved, &map->flags);
+
+ pci_free_consistent(unit->pci, PAGE_SIZE << dmabuf->buforder,
+ dmabuf->rawbuf, dmabuf->dma_addr);
+ }
+ dmabuf->rawbuf = NULL;
+ dmabuf->mapped = dmabuf->ready = 0;
+}
+
+static int prog_dmabuf(struct ymf_state *state, int rec)
+{
+ struct ymf_dmabuf *dmabuf;
+ int w_16;
+ unsigned bufsize;
+ unsigned long flags;
+ int redzone, redfrags;
+ int ret;
+
+ w_16 = ymf_pcm_format_width(state->format.format) == 16;
+ dmabuf = rec ? &state->rpcm.dmabuf : &state->wpcm.dmabuf;
+
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->hwptr = dmabuf->swptr = 0;
+ dmabuf->total_bytes = 0;
+ dmabuf->count = 0;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+
+ /* allocate DMA buffer if not allocated yet */
+ if (!dmabuf->rawbuf)
+ if ((ret = alloc_dmabuf(state->unit, dmabuf)))
+ return ret;
+
+ /*
+ * Create fake fragment sizes and numbers for OSS ioctls.
+ * Import what Doom might have set with SNDCTL_DSP_SETFRAGMENT.
+ */
+ bufsize = PAGE_SIZE << dmabuf->buforder;
+ /* By default we give 4 big buffers. */
+ dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT - 2);
+ if (dmabuf->ossfragshift > 3 &&
+ dmabuf->ossfragshift < dmabuf->fragshift) {
+ /* If OSS set smaller fragments, give more smaller buffers. */
+ dmabuf->fragshift = dmabuf->ossfragshift;
+ }
+ dmabuf->fragsize = 1 << dmabuf->fragshift;
+
+ dmabuf->numfrag = bufsize >> dmabuf->fragshift;
+ dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
+
+ if (dmabuf->ossmaxfrags >= 2) {
+ redzone = ymf_calc_lend(state->format.rate);
+ redzone <<= state->format.shift;
+ redzone *= 3;
+ redfrags = (redzone + dmabuf->fragsize-1) >> dmabuf->fragshift;
+
+ if (dmabuf->ossmaxfrags + redfrags < dmabuf->numfrag) {
+ dmabuf->numfrag = dmabuf->ossmaxfrags + redfrags;
+ dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
+ }
+ }
+
+ memset(dmabuf->rawbuf, w_16 ? 0 : 0x80, dmabuf->dmasize);
+
+ /*
+ * Now set up the ring
+ */
+
+ /* XXX ret = rec? cap_pre(): pbk_pre(); */
+ spin_lock_irqsave(&state->unit->voice_lock, flags);
+ if (rec) {
+ if ((ret = ymf_capture_prepare(state)) != 0) {
+ spin_unlock_irqrestore(&state->unit->voice_lock, flags);
+ return ret;
+ }
+ } else {
+ if ((ret = ymf_playback_prepare(state)) != 0) {
+ spin_unlock_irqrestore(&state->unit->voice_lock, flags);
+ return ret;
+ }
+ }
+ spin_unlock_irqrestore(&state->unit->voice_lock, flags);
+
+ /* set the ready flag for the dma buffer (this comment is not stupid) */
+ dmabuf->ready = 1;
+
+#if 0
+ printk(KERN_DEBUG "prog_dmabuf: rate %d format 0x%x,"
+ " numfrag %d fragsize %d dmasize %d\n",
+ state->format.rate, state->format.format, dmabuf->numfrag,
+ dmabuf->fragsize, dmabuf->dmasize);
+#endif
+
+ return 0;
+}
+
+static void ymf_start_dac(struct ymf_state *state)
+{
+ ymf_playback_trigger(state->unit, &state->wpcm, 1);
+}
+
+// static void ymf_start_adc(struct ymf_state *state)
+// {
+// ymf_capture_trigger(state->unit, &state->rpcm, 1);
+// }
+
+/*
+ * Wait until output is drained.
+ * This does not kill the hardware for the sake of ioctls.
+ */
+static void ymf_wait_dac(struct ymf_state *state)
+{
+ struct ymf_unit *unit = state->unit;
+ struct ymf_pcm *ypcm = &state->wpcm;
+ DECLARE_WAITQUEUE(waita, current);
+ unsigned long flags;
+
+ add_wait_queue(&ypcm->dmabuf.wait, &waita);
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (ypcm->dmabuf.count != 0 && !ypcm->running) {
+ ymf_playback_trigger(unit, ypcm, 1);
+ }
+
+#if 0
+ if (file->f_flags & O_NONBLOCK) {
+ /*
+ * XXX Our mistake is to attach DMA buffer to state
+ * rather than to some per-device structure.
+ * Cannot skip waiting, can only make it shorter.
+ */
+ }
+#endif
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ while (ypcm->running) {
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ schedule();
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ }
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&ypcm->dmabuf.wait, &waita);
+
+ /*
+ * This function may take up to 4 seconds to reach this point
+ * (32K circular buffer, 8000 Hz). User notices.
+ */
+}
+
+/* Can just stop, without wait. Or can we? */
+static void ymf_stop_adc(struct ymf_state *state)
+{
+ struct ymf_unit *unit = state->unit;
+ unsigned long flags;
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ ymf_capture_trigger(unit, &state->rpcm, 0);
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+}
+
+/*
+ * Hardware start management
+ */
+
+static void ymfpci_hw_start(ymfpci_t *unit)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (unit->start_count++ == 0) {
+ ymfpci_writel(unit, YDSXGR_MODE,
+ ymfpci_readl(unit, YDSXGR_MODE) | 3);
+ unit->active_bank = ymfpci_readl(unit, YDSXGR_CTRLSELECT) & 1;
+ }
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+}
+
+static void ymfpci_hw_stop(ymfpci_t *unit)
+{
+ unsigned long flags;
+ long timeout = 1000;
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (--unit->start_count == 0) {
+ ymfpci_writel(unit, YDSXGR_MODE,
+ ymfpci_readl(unit, YDSXGR_MODE) & ~3);
+ while (timeout-- > 0) {
+ if ((ymfpci_readl(unit, YDSXGR_STATUS) & 2) == 0)
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+}
+
+/*
+ * Playback voice management
+ */
+
+static int voice_alloc(ymfpci_t *codec, ymfpci_voice_type_t type, int pair, ymfpci_voice_t *rvoice[])
+{
+ ymfpci_voice_t *voice, *voice2;
+ int idx;
+
+ for (idx = 0; idx < YDSXG_PLAYBACK_VOICES; idx += pair ? 2 : 1) {
+ voice = &codec->voices[idx];
+ voice2 = pair ? &codec->voices[idx+1] : NULL;
+ if (voice->use || (voice2 && voice2->use))
+ continue;
+ voice->use = 1;
+ if (voice2)
+ voice2->use = 1;
+ switch (type) {
+ case YMFPCI_PCM:
+ voice->pcm = 1;
+ if (voice2)
+ voice2->pcm = 1;
+ break;
+ case YMFPCI_SYNTH:
+ voice->synth = 1;
+ break;
+ case YMFPCI_MIDI:
+ voice->midi = 1;
+ break;
+ }
+ ymfpci_hw_start(codec);
+ rvoice[0] = voice;
+ if (voice2) {
+ ymfpci_hw_start(codec);
+ rvoice[1] = voice2;
+ }
+ return 0;
+ }
+ return -EBUSY; /* Your audio channel is open by someone else. */
+}
+
+static void ymfpci_voice_free(ymfpci_t *unit, ymfpci_voice_t *pvoice)
+{
+ ymfpci_hw_stop(unit);
+ pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = 0;
+ pvoice->ypcm = NULL;
+}
+
+/*
+ */
+
+static void ymf_pcm_interrupt(ymfpci_t *codec, ymfpci_voice_t *voice)
+{
+ struct ymf_pcm *ypcm;
+ int redzone;
+ int pos, delta, swptr;
+ int played, distance;
+ struct ymf_state *state;
+ struct ymf_dmabuf *dmabuf;
+ char silence;
+
+ if ((ypcm = voice->ypcm) == NULL) {
+ return;
+ }
+ if ((state = ypcm->state) == NULL) {
+ ypcm->running = 0; // lock it
+ return;
+ }
+ dmabuf = &ypcm->dmabuf;
+ spin_lock(&codec->reg_lock);
+ if (ypcm->running) {
+ YMFDBGI("ymfpci: %d, intr bank %d count %d start 0x%x:%x\n",
+ voice->number, codec->active_bank, dmabuf->count,
+ le32_to_cpu(voice->bank[0].start),
+ le32_to_cpu(voice->bank[1].start));
+ silence = (ymf_pcm_format_width(state->format.format) == 16) ?
+ 0 : 0x80;
+ /* We need actual left-hand-side redzone size here. */
+ redzone = ymf_calc_lend(state->format.rate);
+ redzone <<= (state->format.shift + 1);
+ swptr = dmabuf->swptr;
+
+ pos = le32_to_cpu(voice->bank[codec->active_bank].start);
+ pos <<= state->format.shift;
+ if (pos < 0 || pos >= dmabuf->dmasize) { /* ucode bug */
+ printk(KERN_ERR "ymfpci%d: runaway voice %d: hwptr %d=>%d dmasize %d\n",
+ codec->dev_audio, voice->number,
+ dmabuf->hwptr, pos, dmabuf->dmasize);
+ pos = 0;
+ }
+ if (pos < dmabuf->hwptr) {
+ delta = dmabuf->dmasize - dmabuf->hwptr;
+ memset(dmabuf->rawbuf + dmabuf->hwptr, silence, delta);
+ delta += pos;
+ memset(dmabuf->rawbuf, silence, pos);
+ } else {
+ delta = pos - dmabuf->hwptr;
+ memset(dmabuf->rawbuf + dmabuf->hwptr, silence, delta);
+ }
+ dmabuf->hwptr = pos;
+
+ if (dmabuf->count == 0) {
+ printk(KERN_ERR "ymfpci%d: %d: strain: hwptr %d\n",
+ codec->dev_audio, voice->number, dmabuf->hwptr);
+ ymf_playback_trigger(codec, ypcm, 0);
+ }
+
+ if (swptr <= pos) {
+ distance = pos - swptr;
+ } else {
+ distance = dmabuf->dmasize - (swptr - pos);
+ }
+ if (distance < redzone) {
+ /*
+ * hwptr inside redzone => DMA ran out of samples.
+ */
+ if (delta < dmabuf->count) {
+ /*
+ * Lost interrupt or other screwage.
+ */
+ printk(KERN_ERR "ymfpci%d: %d: lost: delta %d"
+ " hwptr %d swptr %d distance %d count %d\n",
+ codec->dev_audio, voice->number, delta,
+ dmabuf->hwptr, swptr, distance, dmabuf->count);
+ } else {
+ /*
+ * Normal end of DMA.
+ */
+ YMFDBGI("ymfpci%d: %d: done: delta %d"
+ " hwptr %d swptr %d distance %d count %d\n",
+ codec->dev_audio, voice->number, delta,
+ dmabuf->hwptr, swptr, distance, dmabuf->count);
+ }
+ played = dmabuf->count;
+ if (ypcm->running) {
+ ymf_playback_trigger(codec, ypcm, 0);
+ }
+ } else {
+ /*
+ * hwptr is chipping away towards a remote swptr.
+ * Calculate other distance and apply it to count.
+ */
+ if (swptr >= pos) {
+ distance = swptr - pos;
+ } else {
+ distance = dmabuf->dmasize - (pos - swptr);
+ }
+ if (distance < dmabuf->count) {
+ played = dmabuf->count - distance;
+ } else {
+ played = 0;
+ }
+ }
+
+ dmabuf->total_bytes += played;
+ dmabuf->count -= played;
+ if (dmabuf->count < dmabuf->dmasize / 2) {
+ wake_up(&dmabuf->wait);
+ }
+ }
+ spin_unlock(&codec->reg_lock);
+}
+
+static void ymf_cap_interrupt(ymfpci_t *unit, struct ymf_capture *cap)
+{
+ struct ymf_pcm *ypcm;
+ int redzone;
+ struct ymf_state *state;
+ struct ymf_dmabuf *dmabuf;
+ int pos, delta;
+ int cnt;
+
+ if ((ypcm = cap->ypcm) == NULL) {
+ return;
+ }
+ if ((state = ypcm->state) == NULL) {
+ ypcm->running = 0; // lock it
+ return;
+ }
+ dmabuf = &ypcm->dmabuf;
+ spin_lock(&unit->reg_lock);
+ if (ypcm->running) {
+ redzone = ymf_calc_lend(state->format.rate);
+ redzone <<= (state->format.shift + 1);
+
+ pos = le32_to_cpu(cap->bank[unit->active_bank].start);
+ // pos <<= state->format.shift;
+ if (pos < 0 || pos >= dmabuf->dmasize) { /* ucode bug */
+ printk(KERN_ERR "ymfpci%d: runaway capture %d: hwptr %d=>%d dmasize %d\n",
+ unit->dev_audio, ypcm->capture_bank_number,
+ dmabuf->hwptr, pos, dmabuf->dmasize);
+ pos = 0;
+ }
+ if (pos < dmabuf->hwptr) {
+ delta = dmabuf->dmasize - dmabuf->hwptr;
+ delta += pos;
+ } else {
+ delta = pos - dmabuf->hwptr;
+ }
+ dmabuf->hwptr = pos;
+
+ cnt = dmabuf->count;
+ cnt += delta;
+ if (cnt + redzone > dmabuf->dmasize) {
+ /* Overflow - bump swptr */
+ dmabuf->count = dmabuf->dmasize - redzone;
+ dmabuf->swptr = dmabuf->hwptr + redzone;
+ if (dmabuf->swptr >= dmabuf->dmasize) {
+ dmabuf->swptr -= dmabuf->dmasize;
+ }
+ } else {
+ dmabuf->count = cnt;
+ }
+
+ dmabuf->total_bytes += delta;
+ if (dmabuf->count) { /* && is_sleeping XXX */
+ wake_up(&dmabuf->wait);
+ }
+ }
+ spin_unlock(&unit->reg_lock);
+}
+
+static int ymf_playback_trigger(ymfpci_t *codec, struct ymf_pcm *ypcm, int cmd)
+{
+
+ if (ypcm->voices[0] == NULL) {
+ return -EINVAL;
+ }
+ if (cmd != 0) {
+ codec->ctrl_playback[ypcm->voices[0]->number + 1] =
+ cpu_to_le32(ypcm->voices[0]->bank_ba);
+ if (ypcm->voices[1] != NULL)
+ codec->ctrl_playback[ypcm->voices[1]->number + 1] =
+ cpu_to_le32(ypcm->voices[1]->bank_ba);
+ ypcm->running = 1;
+ } else {
+ codec->ctrl_playback[ypcm->voices[0]->number + 1] = 0;
+ if (ypcm->voices[1] != NULL)
+ codec->ctrl_playback[ypcm->voices[1]->number + 1] = 0;
+ ypcm->running = 0;
+ }
+ return 0;
+}
+
+static void ymf_capture_trigger(ymfpci_t *codec, struct ymf_pcm *ypcm, int cmd)
+{
+ u32 tmp;
+
+ if (cmd != 0) {
+ tmp = ymfpci_readl(codec, YDSXGR_MAPOFREC) | (1 << ypcm->capture_bank_number);
+ ymfpci_writel(codec, YDSXGR_MAPOFREC, tmp);
+ ypcm->running = 1;
+ } else {
+ tmp = ymfpci_readl(codec, YDSXGR_MAPOFREC) & ~(1 << ypcm->capture_bank_number);
+ ymfpci_writel(codec, YDSXGR_MAPOFREC, tmp);
+ ypcm->running = 0;
+ }
+}
+
+static int ymfpci_pcm_voice_alloc(struct ymf_pcm *ypcm, int voices)
+{
+ struct ymf_unit *unit;
+ int err;
+
+ unit = ypcm->state->unit;
+ if (ypcm->voices[1] != NULL && voices < 2) {
+ ymfpci_voice_free(unit, ypcm->voices[1]);
+ ypcm->voices[1] = NULL;
+ }
+ if (voices == 1 && ypcm->voices[0] != NULL)
+ return 0; /* already allocated */
+ if (voices == 2 && ypcm->voices[0] != NULL && ypcm->voices[1] != NULL)
+ return 0; /* already allocated */
+ if (voices > 1) {
+ if (ypcm->voices[0] != NULL && ypcm->voices[1] == NULL) {
+ ymfpci_voice_free(unit, ypcm->voices[0]);
+ ypcm->voices[0] = NULL;
+ }
+ if ((err = voice_alloc(unit, YMFPCI_PCM, 1, ypcm->voices)) < 0)
+ return err;
+ ypcm->voices[0]->ypcm = ypcm;
+ ypcm->voices[1]->ypcm = ypcm;
+ } else {
+ if ((err = voice_alloc(unit, YMFPCI_PCM, 0, ypcm->voices)) < 0)
+ return err;
+ ypcm->voices[0]->ypcm = ypcm;
+ }
+ return 0;
+}
+
+static void ymf_pcm_init_voice(ymfpci_voice_t *voice, int stereo,
+ int rate, int w_16, unsigned long addr, unsigned int end, int spdif)
+{
+ u32 format;
+ u32 delta = ymfpci_calc_delta(rate);
+ u32 lpfQ = ymfpci_calc_lpfQ(rate);
+ u32 lpfK = ymfpci_calc_lpfK(rate);
+ ymfpci_playback_bank_t *bank;
+ int nbank;
+
+ /*
+ * The gain is a floating point number. According to the manual,
+ * bit 31 indicates a sign bit, bit 30 indicates an integer part,
+ * and bits [29:15] indicate a decimal fraction part. Thus,
+ * for a gain of 1.0 the constant of 0x40000000 is loaded.
+ */
+ unsigned default_gain = cpu_to_le32(0x40000000);
+
+ format = (stereo ? 0x00010000 : 0) | (w_16 ? 0 : 0x80000000);
+ if (stereo)
+ end >>= 1;
+ if (w_16)
+ end >>= 1;
+ for (nbank = 0; nbank < 2; nbank++) {
+ bank = &voice->bank[nbank];
+ bank->format = cpu_to_le32(format);
+ bank->loop_default = 0; /* 0-loops forever, otherwise count */
+ bank->base = cpu_to_le32(addr);
+ bank->loop_start = 0;
+ bank->loop_end = cpu_to_le32(end);
+ bank->loop_frac = 0;
+ bank->eg_gain_end = default_gain;
+ bank->lpfQ = cpu_to_le32(lpfQ);
+ bank->status = 0;
+ bank->num_of_frames = 0;
+ bank->loop_count = 0;
+ bank->start = 0;
+ bank->start_frac = 0;
+ bank->delta =
+ bank->delta_end = cpu_to_le32(delta);
+ bank->lpfK =
+ bank->lpfK_end = cpu_to_le32(lpfK);
+ bank->eg_gain = default_gain;
+ bank->lpfD1 =
+ bank->lpfD2 = 0;
+
+ bank->left_gain =
+ bank->right_gain =
+ bank->left_gain_end =
+ bank->right_gain_end =
+ bank->eff1_gain =
+ bank->eff2_gain =
+ bank->eff3_gain =
+ bank->eff1_gain_end =
+ bank->eff2_gain_end =
+ bank->eff3_gain_end = 0;
+
+ if (!stereo) {
+ if (!spdif) {
+ bank->left_gain =
+ bank->right_gain =
+ bank->left_gain_end =
+ bank->right_gain_end = default_gain;
+ } else {
+ bank->eff2_gain =
+ bank->eff2_gain_end =
+ bank->eff3_gain =
+ bank->eff3_gain_end = default_gain;
+ }
+ } else {
+ if (!spdif) {
+ if ((voice->number & 1) == 0) {
+ bank->left_gain =
+ bank->left_gain_end = default_gain;
+ } else {
+ bank->format |= cpu_to_le32(1);
+ bank->right_gain =
+ bank->right_gain_end = default_gain;
+ }
+ } else {
+ if ((voice->number & 1) == 0) {
+ bank->eff2_gain =
+ bank->eff2_gain_end = default_gain;
+ } else {
+ bank->format |= cpu_to_le32(1);
+ bank->eff3_gain =
+ bank->eff3_gain_end = default_gain;
+ }
+ }
+ }
+ }
+}
+
+/*
+ * XXX Capture channel allocation is entirely fake at the moment.
+ * We use only one channel and mark it busy as required.
+ */
+static int ymf_capture_alloc(struct ymf_unit *unit, int *pbank)
+{
+ struct ymf_capture *cap;
+ int cbank;
+
+ cbank = 1; /* Only ADC slot is used for now. */
+ cap = &unit->capture[cbank];
+ if (cap->use)
+ return -EBUSY;
+ cap->use = 1;
+ *pbank = cbank;
+ return 0;
+}
+
+static int ymf_playback_prepare(struct ymf_state *state)
+{
+ struct ymf_pcm *ypcm = &state->wpcm;
+ int err, nvoice;
+
+ if ((err = ymfpci_pcm_voice_alloc(ypcm, state->format.voices)) < 0) {
+ /* Somebody started 32 mpg123's in parallel? */
+ printk(KERN_INFO "ymfpci%d: cannot allocate voice\n",
+ state->unit->dev_audio);
+ return err;
+ }
+
+ for (nvoice = 0; nvoice < state->format.voices; nvoice++) {
+ ymf_pcm_init_voice(ypcm->voices[nvoice],
+ state->format.voices == 2, state->format.rate,
+ ymf_pcm_format_width(state->format.format) == 16,
+ ypcm->dmabuf.dma_addr, ypcm->dmabuf.dmasize,
+ ypcm->spdif);
+ }
+ return 0;
+}
+
+static int ymf_capture_prepare(struct ymf_state *state)
+{
+ ymfpci_t *unit = state->unit;
+ struct ymf_pcm *ypcm = &state->rpcm;
+ ymfpci_capture_bank_t * bank;
+ /* XXX This is confusing, gotta rename one of them banks... */
+ int nbank; /* flip-flop bank */
+ int cbank; /* input [super-]bank */
+ struct ymf_capture *cap;
+ u32 rate, format;
+
+ if (ypcm->capture_bank_number == -1) {
+ if (ymf_capture_alloc(unit, &cbank) != 0)
+ return -EBUSY;
+
+ ypcm->capture_bank_number = cbank;
+
+ cap = &unit->capture[cbank];
+ cap->bank = unit->bank_capture[cbank][0];
+ cap->ypcm = ypcm;
+ ymfpci_hw_start(unit);
+ }
+
+ // ypcm->frag_size = snd_pcm_lib_transfer_fragment(substream);
+ // frag_size is replaced with nonfragged byte-aligned rolling buffer
+ rate = ((48000 * 4096) / state->format.rate) - 1;
+ format = 0;
+ if (state->format.voices == 2)
+ format |= 2;
+ if (ymf_pcm_format_width(state->format.format) == 8)
+ format |= 1;
+ switch (ypcm->capture_bank_number) {
+ case 0:
+ ymfpci_writel(unit, YDSXGR_RECFORMAT, format);
+ ymfpci_writel(unit, YDSXGR_RECSLOTSR, rate);
+ break;
+ case 1:
+ ymfpci_writel(unit, YDSXGR_ADCFORMAT, format);
+ ymfpci_writel(unit, YDSXGR_ADCSLOTSR, rate);
+ break;
+ }
+ for (nbank = 0; nbank < 2; nbank++) {
+ bank = unit->bank_capture[ypcm->capture_bank_number][nbank];
+ bank->base = cpu_to_le32(ypcm->dmabuf.dma_addr);
+ // bank->loop_end = ypcm->dmabuf.dmasize >> state->format.shift;
+ bank->loop_end = cpu_to_le32(ypcm->dmabuf.dmasize);
+ bank->start = 0;
+ bank->num_of_loops = 0;
+ }
+#if 0 /* s/pdif */
+ if (state->digital.dig_valid)
+ /*state->digital.type == SND_PCM_DIG_AES_IEC958*/
+ ymfpci_writew(codec, YDSXGR_SPDIFOUTSTATUS,
+ state->digital.dig_status[0] | (state->digital.dig_status[1] << 8));
+#endif
+ return 0;
+}
+
+static irqreturn_t ymf_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ ymfpci_t *codec = dev_id;
+ u32 status, nvoice, mode;
+ struct ymf_voice *voice;
+ struct ymf_capture *cap;
+
+ status = ymfpci_readl(codec, YDSXGR_STATUS);
+ if (status & 0x80000000) {
+ codec->active_bank = ymfpci_readl(codec, YDSXGR_CTRLSELECT) & 1;
+ spin_lock(&codec->voice_lock);
+ for (nvoice = 0; nvoice < YDSXG_PLAYBACK_VOICES; nvoice++) {
+ voice = &codec->voices[nvoice];
+ if (voice->use)
+ ymf_pcm_interrupt(codec, voice);
+ }
+ for (nvoice = 0; nvoice < YDSXG_CAPTURE_VOICES; nvoice++) {
+ cap = &codec->capture[nvoice];
+ if (cap->use)
+ ymf_cap_interrupt(codec, cap);
+ }
+ spin_unlock(&codec->voice_lock);
+ spin_lock(&codec->reg_lock);
+ ymfpci_writel(codec, YDSXGR_STATUS, 0x80000000);
+ mode = ymfpci_readl(codec, YDSXGR_MODE) | 2;
+ ymfpci_writel(codec, YDSXGR_MODE, mode);
+ spin_unlock(&codec->reg_lock);
+ }
+
+ status = ymfpci_readl(codec, YDSXGR_INTFLAG);
+ if (status & 1) {
+ /* timer handler */
+ ymfpci_writel(codec, YDSXGR_INTFLAG, ~0);
+ }
+ return IRQ_HANDLED;
+}
+
+static void ymf_pcm_free_substream(struct ymf_pcm *ypcm)
+{
+ unsigned long flags;
+ struct ymf_unit *unit;
+
+ unit = ypcm->state->unit;
+
+ if (ypcm->type == PLAYBACK_VOICE) {
+ spin_lock_irqsave(&unit->voice_lock, flags);
+ if (ypcm->voices[1])
+ ymfpci_voice_free(unit, ypcm->voices[1]);
+ if (ypcm->voices[0])
+ ymfpci_voice_free(unit, ypcm->voices[0]);
+ spin_unlock_irqrestore(&unit->voice_lock, flags);
+ } else {
+ if (ypcm->capture_bank_number != -1) {
+ unit->capture[ypcm->capture_bank_number].use = 0;
+ ypcm->capture_bank_number = -1;
+ ymfpci_hw_stop(unit);
+ }
+ }
+}
+
+static struct ymf_state *ymf_state_alloc(ymfpci_t *unit)
+{
+ struct ymf_pcm *ypcm;
+ struct ymf_state *state;
+
+ if ((state = kmalloc(sizeof(struct ymf_state), GFP_KERNEL)) == NULL) {
+ goto out0;
+ }
+ memset(state, 0, sizeof(struct ymf_state));
+
+ ypcm = &state->wpcm;
+ ypcm->state = state;
+ ypcm->type = PLAYBACK_VOICE;
+ ypcm->capture_bank_number = -1;
+ init_waitqueue_head(&ypcm->dmabuf.wait);
+
+ ypcm = &state->rpcm;
+ ypcm->state = state;
+ ypcm->type = CAPTURE_AC97;
+ ypcm->capture_bank_number = -1;
+ init_waitqueue_head(&ypcm->dmabuf.wait);
+
+ state->unit = unit;
+
+ state->format.format = AFMT_U8;
+ state->format.rate = 8000;
+ state->format.voices = 1;
+ ymf_pcm_update_shift(&state->format);
+
+ return state;
+
+out0:
+ return NULL;
+}
+
+/* AES/IEC958 channel status bits */
+#define SND_PCM_AES0_PROFESSIONAL (1<<0) /* 0 = consumer, 1 = professional */
+#define SND_PCM_AES0_NONAUDIO (1<<1) /* 0 = audio, 1 = non-audio */
+#define SND_PCM_AES0_PRO_EMPHASIS (7<<2) /* mask - emphasis */
+#define SND_PCM_AES0_PRO_EMPHASIS_NOTID (0<<2) /* emphasis not indicated */
+#define SND_PCM_AES0_PRO_EMPHASIS_NONE (1<<2) /* none emphasis */
+#define SND_PCM_AES0_PRO_EMPHASIS_5015 (3<<2) /* 50/15us emphasis */
+#define SND_PCM_AES0_PRO_EMPHASIS_CCITT (7<<2) /* CCITT J.17 emphasis */
+#define SND_PCM_AES0_PRO_FREQ_UNLOCKED (1<<5) /* source sample frequency: 0 = locked, 1 = unlocked */
+#define SND_PCM_AES0_PRO_FS (3<<6) /* mask - sample frequency */
+#define SND_PCM_AES0_PRO_FS_NOTID (0<<6) /* fs not indicated */
+#define SND_PCM_AES0_PRO_FS_44100 (1<<6) /* 44.1kHz */
+#define SND_PCM_AES0_PRO_FS_48000 (2<<6) /* 48kHz */
+#define SND_PCM_AES0_PRO_FS_32000 (3<<6) /* 32kHz */
+#define SND_PCM_AES0_CON_NOT_COPYRIGHT (1<<2) /* 0 = copyright, 1 = not copyright */
+#define SND_PCM_AES0_CON_EMPHASIS (7<<3) /* mask - emphasis */
+#define SND_PCM_AES0_CON_EMPHASIS_NONE (0<<3) /* none emphasis */
+#define SND_PCM_AES0_CON_EMPHASIS_5015 (1<<3) /* 50/15us emphasis */
+#define SND_PCM_AES0_CON_MODE (3<<6) /* mask - mode */
+#define SND_PCM_AES1_PRO_MODE (15<<0) /* mask - channel mode */
+#define SND_PCM_AES1_PRO_MODE_NOTID (0<<0) /* not indicated */
+#define SND_PCM_AES1_PRO_MODE_STEREOPHONIC (2<<0) /* stereophonic - ch A is left */
+#define SND_PCM_AES1_PRO_MODE_SINGLE (4<<0) /* single channel */
+#define SND_PCM_AES1_PRO_MODE_TWO (8<<0) /* two channels */
+#define SND_PCM_AES1_PRO_MODE_PRIMARY (12<<0) /* primary/secondary */
+#define SND_PCM_AES1_PRO_MODE_BYTE3 (15<<0) /* vector to byte 3 */
+#define SND_PCM_AES1_PRO_USERBITS (15<<4) /* mask - user bits */
+#define SND_PCM_AES1_PRO_USERBITS_NOTID (0<<4) /* not indicated */
+#define SND_PCM_AES1_PRO_USERBITS_192 (8<<4) /* 192-bit structure */
+#define SND_PCM_AES1_PRO_USERBITS_UDEF (12<<4) /* user defined application */
+#define SND_PCM_AES1_CON_CATEGORY 0x7f
+#define SND_PCM_AES1_CON_GENERAL 0x00
+#define SND_PCM_AES1_CON_EXPERIMENTAL 0x40
+#define SND_PCM_AES1_CON_SOLIDMEM_MASK 0x0f
+#define SND_PCM_AES1_CON_SOLIDMEM_ID 0x08
+#define SND_PCM_AES1_CON_BROADCAST1_MASK 0x07
+#define SND_PCM_AES1_CON_BROADCAST1_ID 0x04
+#define SND_PCM_AES1_CON_DIGDIGCONV_MASK 0x07
+#define SND_PCM_AES1_CON_DIGDIGCONV_ID 0x02
+#define SND_PCM_AES1_CON_ADC_COPYRIGHT_MASK 0x1f
+#define SND_PCM_AES1_CON_ADC_COPYRIGHT_ID 0x06
+#define SND_PCM_AES1_CON_ADC_MASK 0x1f
+#define SND_PCM_AES1_CON_ADC_ID 0x16
+#define SND_PCM_AES1_CON_BROADCAST2_MASK 0x0f
+#define SND_PCM_AES1_CON_BROADCAST2_ID 0x0e
+#define SND_PCM_AES1_CON_LASEROPT_MASK 0x07
+#define SND_PCM_AES1_CON_LASEROPT_ID 0x01
+#define SND_PCM_AES1_CON_MUSICAL_MASK 0x07
+#define SND_PCM_AES1_CON_MUSICAL_ID 0x05
+#define SND_PCM_AES1_CON_MAGNETIC_MASK 0x07
+#define SND_PCM_AES1_CON_MAGNETIC_ID 0x03
+#define SND_PCM_AES1_CON_IEC908_CD (SND_PCM_AES1_CON_LASEROPT_ID|0x00)
+#define SND_PCM_AES1_CON_NON_IEC908_CD (SND_PCM_AES1_CON_LASEROPT_ID|0x08)
+#define SND_PCM_AES1_CON_PCM_CODER (SND_PCM_AES1_CON_DIGDIGCONV_ID|0x00)
+#define SND_PCM_AES1_CON_SAMPLER (SND_PCM_AES1_CON_DIGDIGCONV_ID|0x20)
+#define SND_PCM_AES1_CON_MIXER (SND_PCM_AES1_CON_DIGDIGCONV_ID|0x10)
+#define SND_PCM_AES1_CON_RATE_CONVERTER (SND_PCM_AES1_CON_DIGDIGCONV_ID|0x18)
+#define SND_PCM_AES1_CON_SYNTHESIZER (SND_PCM_AES1_CON_MUSICAL_ID|0x00)
+#define SND_PCM_AES1_CON_MICROPHONE (SND_PCM_AES1_CON_MUSICAL_ID|0x08)
+#define SND_PCM_AES1_CON_DAT (SND_PCM_AES1_CON_MAGNETIC_ID|0x00)
+#define SND_PCM_AES1_CON_VCR (SND_PCM_AES1_CON_MAGNETIC_ID|0x08)
+#define SND_PCM_AES1_CON_ORIGINAL (1<<7) /* this bits depends on the category code */
+#define SND_PCM_AES2_PRO_SBITS (7<<0) /* mask - sample bits */
+#define SND_PCM_AES2_PRO_SBITS_20 (2<<0) /* 20-bit - coordination */
+#define SND_PCM_AES2_PRO_SBITS_24 (4<<0) /* 24-bit - main audio */
+#define SND_PCM_AES2_PRO_SBITS_UDEF (6<<0) /* user defined application */
+#define SND_PCM_AES2_PRO_WORDLEN (7<<3) /* mask - source word length */
+#define SND_PCM_AES2_PRO_WORDLEN_NOTID (0<<3) /* not indicated */
+#define SND_PCM_AES2_PRO_WORDLEN_22_18 (2<<3) /* 22-bit or 18-bit */
+#define SND_PCM_AES2_PRO_WORDLEN_23_19 (4<<3) /* 23-bit or 19-bit */
+#define SND_PCM_AES2_PRO_WORDLEN_24_20 (5<<3) /* 24-bit or 20-bit */
+#define SND_PCM_AES2_PRO_WORDLEN_20_16 (6<<3) /* 20-bit or 16-bit */
+#define SND_PCM_AES2_CON_SOURCE (15<<0) /* mask - source number */
+#define SND_PCM_AES2_CON_SOURCE_UNSPEC (0<<0) /* unspecified */
+#define SND_PCM_AES2_CON_CHANNEL (15<<4) /* mask - channel number */
+#define SND_PCM_AES2_CON_CHANNEL_UNSPEC (0<<4) /* unspecified */
+#define SND_PCM_AES3_CON_FS (15<<0) /* mask - sample frequency */
+#define SND_PCM_AES3_CON_FS_44100 (0<<0) /* 44.1kHz */
+#define SND_PCM_AES3_CON_FS_48000 (2<<0) /* 48kHz */
+#define SND_PCM_AES3_CON_FS_32000 (3<<0) /* 32kHz */
+#define SND_PCM_AES3_CON_CLOCK (3<<4) /* mask - clock accuracy */
+#define SND_PCM_AES3_CON_CLOCK_1000PPM (0<<4) /* 1000 ppm */
+#define SND_PCM_AES3_CON_CLOCK_50PPM (1<<4) /* 50 ppm */
+#define SND_PCM_AES3_CON_CLOCK_VARIABLE (2<<4) /* variable pitch */
+
+/*
+ * User interface
+ */
+
+/*
+ * in this loop, dmabuf.count signifies the amount of data that is
+ * waiting to be copied to the user's buffer. it is filled by the dma
+ * machine and drained by this loop.
+ */
+static ssize_t
+ymf_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ struct ymf_dmabuf *dmabuf = &state->rpcm.dmabuf;
+ struct ymf_unit *unit = state->unit;
+ DECLARE_WAITQUEUE(waita, current);
+ ssize_t ret;
+ unsigned long flags;
+ unsigned int swptr;
+ int cnt; /* This many to go in this revolution */
+
+ if (dmabuf->mapped)
+ return -ENXIO;
+ if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
+ return ret;
+ ret = 0;
+
+ add_wait_queue(&dmabuf->wait, &waita);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (count > 0) {
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (unit->suspended) {
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ schedule();
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (signal_pending(current)) {
+ if (!ret) ret = -EAGAIN;
+ break;
+ }
+ continue;
+ }
+ swptr = dmabuf->swptr;
+ cnt = dmabuf->dmasize - swptr;
+ if (dmabuf->count < cnt)
+ cnt = dmabuf->count;
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ unsigned long tmo;
+ /* buffer is empty, start the dma machine and wait for data to be
+ recorded */
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ if (!state->rpcm.running) {
+ ymf_capture_trigger(state->unit, &state->rpcm, 1);
+ }
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret) ret = -EAGAIN;
+ break;
+ }
+ /* This isnt strictly right for the 810 but it'll do */
+ tmo = (dmabuf->dmasize * HZ) / (state->format.rate * 2);
+ tmo >>= state->format.shift;
+ /* There are two situations when sleep_on_timeout returns, one is when
+ the interrupt is serviced correctly and the process is waked up by
+ ISR ON TIME. Another is when timeout is expired, which means that
+ either interrupt is NOT serviced correctly (pending interrupt) or it
+ is TOO LATE for the process to be scheduled to run (scheduler latency)
+ which results in a (potential) buffer overrun. And worse, there is
+ NOTHING we can do to prevent it. */
+ tmo = schedule_timeout(tmo);
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (tmo == 0 && dmabuf->count == 0) {
+ printk(KERN_ERR "ymfpci%d: recording schedule timeout, "
+ "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
+ state->unit->dev_audio,
+ dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
+ dmabuf->hwptr, dmabuf->swptr);
+ }
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ if (signal_pending(current)) {
+ if (!ret) ret = -ERESTARTSYS;
+ break;
+ }
+ continue;
+ }
+
+ if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
+ if (!ret) ret = -EFAULT;
+ break;
+ }
+
+ swptr = (swptr + cnt) % dmabuf->dmasize;
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (unit->suspended) {
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ continue;
+ }
+
+ dmabuf->swptr = swptr;
+ dmabuf->count -= cnt;
+ // spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ // spin_lock_irqsave(&unit->reg_lock, flags);
+ if (!state->rpcm.running) {
+ ymf_capture_trigger(unit, &state->rpcm, 1);
+ }
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ }
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&dmabuf->wait, &waita);
+
+ return ret;
+}
+
+static ssize_t
+ymf_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ struct ymf_dmabuf *dmabuf = &state->wpcm.dmabuf;
+ struct ymf_unit *unit = state->unit;
+ DECLARE_WAITQUEUE(waita, current);
+ ssize_t ret;
+ unsigned long flags;
+ unsigned int swptr;
+ int cnt; /* This many to go in this revolution */
+ int redzone;
+ int delay;
+
+ YMFDBGW("ymf_write: count %d\n", count);
+
+ if (dmabuf->mapped)
+ return -ENXIO;
+ if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
+ return ret;
+ ret = 0;
+
+ /*
+ * Alan's cs46xx works without a red zone - marvel of ingenuity.
+ * We are not so brilliant... Red zone does two things:
+ * 1. allows for safe start after a pause as we have no way
+ * to know what the actual, relentlessly advancing, hwptr is.
+ * 2. makes computations in ymf_pcm_interrupt simpler.
+ */
+ redzone = ymf_calc_lend(state->format.rate) << state->format.shift;
+ redzone *= 3; /* 2 redzone + 1 possible uncertainty reserve. */
+
+ add_wait_queue(&dmabuf->wait, &waita);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (count > 0) {
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (unit->suspended) {
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ schedule();
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (signal_pending(current)) {
+ if (!ret) ret = -EAGAIN;
+ break;
+ }
+ continue;
+ }
+ if (dmabuf->count < 0) {
+ printk(KERN_ERR
+ "ymf_write: count %d, was legal in cs46xx\n",
+ dmabuf->count);
+ dmabuf->count = 0;
+ }
+ if (dmabuf->count == 0) {
+ swptr = dmabuf->hwptr;
+ if (state->wpcm.running) {
+ /*
+ * Add uncertainty reserve.
+ */
+ cnt = ymf_calc_lend(state->format.rate);
+ cnt <<= state->format.shift;
+ if ((swptr += cnt) >= dmabuf->dmasize) {
+ swptr -= dmabuf->dmasize;
+ }
+ }
+ dmabuf->swptr = swptr;
+ } else {
+ /*
+ * XXX This is not right if dmabuf->count is small -
+ * about 2*x frame size or less. We cannot count on
+ * on appending and not causing an artefact.
+ * Should use a variation of the count==0 case above.
+ */
+ swptr = dmabuf->swptr;
+ }
+ cnt = dmabuf->dmasize - swptr;
+ if (dmabuf->count + cnt > dmabuf->dmasize - redzone)
+ cnt = (dmabuf->dmasize - redzone) - dmabuf->count;
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ YMFDBGW("ymf_write: full, count %d swptr %d\n",
+ dmabuf->count, dmabuf->swptr);
+ /*
+ * buffer is full, start the dma machine and
+ * wait for data to be played
+ */
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (!state->wpcm.running) {
+ ymf_playback_trigger(unit, &state->wpcm, 1);
+ }
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret) ret = -EAGAIN;
+ break;
+ }
+ schedule();
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (signal_pending(current)) {
+ if (!ret) ret = -ERESTARTSYS;
+ break;
+ }
+ continue;
+ }
+ if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
+ if (!ret) ret = -EFAULT;
+ break;
+ }
+
+ if ((swptr += cnt) >= dmabuf->dmasize) {
+ swptr -= dmabuf->dmasize;
+ }
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+ if (unit->suspended) {
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ continue;
+ }
+ dmabuf->swptr = swptr;
+ dmabuf->count += cnt;
+
+ /*
+ * Start here is a bad idea - may cause startup click
+ * in /bin/play when dmabuf is not full yet.
+ * However, some broken applications do not make
+ * any use of SNDCTL_DSP_SYNC (Doom is the worst).
+ * One frame is about 5.3ms, Doom write size is 46ms.
+ */
+ delay = state->format.rate / 20; /* 50ms */
+ delay <<= state->format.shift;
+ if (dmabuf->count >= delay && !state->wpcm.running) {
+ ymf_playback_trigger(unit, &state->wpcm, 1);
+ }
+
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ }
+
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&dmabuf->wait, &waita);
+
+ YMFDBGW("ymf_write: ret %d dmabuf.count %d\n", ret, dmabuf->count);
+ return ret;
+}
+
+static unsigned int ymf_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ struct ymf_dmabuf *dmabuf;
+ int redzone;
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ if (file->f_mode & FMODE_WRITE)
+ poll_wait(file, &state->wpcm.dmabuf.wait, wait);
+ if (file->f_mode & FMODE_READ)
+ poll_wait(file, &state->rpcm.dmabuf.wait, wait);
+
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ if (file->f_mode & FMODE_READ) {
+ dmabuf = &state->rpcm.dmabuf;
+ if (dmabuf->count >= (signed)dmabuf->fragsize)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ redzone = ymf_calc_lend(state->format.rate);
+ redzone <<= state->format.shift;
+ redzone *= 3;
+
+ dmabuf = &state->wpcm.dmabuf;
+ if (dmabuf->mapped) {
+ if (dmabuf->count >= (signed)dmabuf->fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ } else {
+ /*
+ * Don't select unless a full fragment is available.
+ * Otherwise artsd does GETOSPACE, sees 0, and loops.
+ */
+ if (dmabuf->count + redzone + dmabuf->fragsize
+ <= dmabuf->dmasize)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ }
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+
+ return mask;
+}
+
+static int ymf_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ struct ymf_dmabuf *dmabuf = &state->wpcm.dmabuf;
+ int ret;
+ unsigned long size;
+
+ if (vma->vm_flags & VM_WRITE) {
+ if ((ret = prog_dmabuf(state, 0)) != 0)
+ return ret;
+ } else if (vma->vm_flags & VM_READ) {
+ if ((ret = prog_dmabuf(state, 1)) != 0)
+ return ret;
+ } else
+ return -EINVAL;
+
+ if (vma->vm_pgoff != 0)
+ return -EINVAL;
+ size = vma->vm_end - vma->vm_start;
+ if (size > (PAGE_SIZE << dmabuf->buforder))
+ return -EINVAL;
+ if (remap_pfn_range(vma, vma->vm_start,
+ virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
+ size, vma->vm_page_prot))
+ return -EAGAIN;
+ dmabuf->mapped = 1;
+
+/* P3 */ printk(KERN_INFO "ymfpci: using memory mapped sound, untested!\n");
+ return 0;
+}
+
+static int ymf_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ struct ymf_dmabuf *dmabuf;
+ unsigned long flags;
+ audio_buf_info abinfo;
+ count_info cinfo;
+ int redzone;
+ int val;
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+
+ switch (cmd) {
+ case OSS_GETVERSION:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETVER) arg 0x%lx\n", cmd, arg);
+ return put_user(SOUND_VERSION, p);
+
+ case SNDCTL_DSP_RESET:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(RESET)\n", cmd);
+ if (file->f_mode & FMODE_WRITE) {
+ ymf_wait_dac(state);
+ dmabuf = &state->wpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ dmabuf->swptr = dmabuf->hwptr;
+ dmabuf->count = dmabuf->total_bytes = 0;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ if (file->f_mode & FMODE_READ) {
+ ymf_stop_adc(state);
+ dmabuf = &state->rpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ dmabuf->swptr = dmabuf->hwptr;
+ dmabuf->count = dmabuf->total_bytes = 0;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ return 0;
+
+ case SNDCTL_DSP_SYNC:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(SYNC)\n", cmd);
+ if (file->f_mode & FMODE_WRITE) {
+ dmabuf = &state->wpcm.dmabuf;
+ if (file->f_flags & O_NONBLOCK) {
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ if (dmabuf->count != 0 && !state->wpcm.running) {
+ ymf_start_dac(state);
+ }
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ } else {
+ ymf_wait_dac(state);
+ }
+ }
+ /* XXX What does this do for reading? dmabuf->count=0; ? */
+ return 0;
+
+ case SNDCTL_DSP_SPEED: /* set smaple rate */
+ if (get_user(val, p))
+ return -EFAULT;
+ YMFDBGX("ymf_ioctl: cmd 0x%x(SPEED) sp %d\n", cmd, val);
+ if (val >= 8000 && val <= 48000) {
+ if (file->f_mode & FMODE_WRITE) {
+ ymf_wait_dac(state);
+ dmabuf = &state->wpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.rate = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ if (file->f_mode & FMODE_READ) {
+ ymf_stop_adc(state);
+ dmabuf = &state->rpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.rate = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ }
+ return put_user(state->format.rate, p);
+
+ /*
+ * OSS manual does not mention SNDCTL_DSP_STEREO at all.
+ * All channels are mono and if you want stereo, you
+ * play into two channels with SNDCTL_DSP_CHANNELS.
+ * However, mpg123 calls it. I wonder, why Michael Hipp used it.
+ */
+ case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
+ if (get_user(val, p))
+ return -EFAULT;
+ YMFDBGX("ymf_ioctl: cmd 0x%x(STEREO) st %d\n", cmd, val);
+ if (file->f_mode & FMODE_WRITE) {
+ ymf_wait_dac(state);
+ dmabuf = &state->wpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.voices = val ? 2 : 1;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ if (file->f_mode & FMODE_READ) {
+ ymf_stop_adc(state);
+ dmabuf = &state->rpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.voices = val ? 2 : 1;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETBLKSIZE:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETBLK)\n", cmd);
+ if (file->f_mode & FMODE_WRITE) {
+ if ((val = prog_dmabuf(state, 0)))
+ return val;
+ val = state->wpcm.dmabuf.fragsize;
+ YMFDBGX("ymf_ioctl: GETBLK w %d\n", val);
+ return put_user(val, p);
+ }
+ if (file->f_mode & FMODE_READ) {
+ if ((val = prog_dmabuf(state, 1)))
+ return val;
+ val = state->rpcm.dmabuf.fragsize;
+ YMFDBGX("ymf_ioctl: GETBLK r %d\n", val);
+ return put_user(val, p);
+ }
+ return -EINVAL;
+
+ case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETFMTS)\n", cmd);
+ return put_user(AFMT_S16_LE|AFMT_U8, p);
+
+ case SNDCTL_DSP_SETFMT: /* Select sample format */
+ if (get_user(val, p))
+ return -EFAULT;
+ YMFDBGX("ymf_ioctl: cmd 0x%x(SETFMT) fmt %d\n", cmd, val);
+ if (val == AFMT_S16_LE || val == AFMT_U8) {
+ if (file->f_mode & FMODE_WRITE) {
+ ymf_wait_dac(state);
+ dmabuf = &state->wpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.format = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ if (file->f_mode & FMODE_READ) {
+ ymf_stop_adc(state);
+ dmabuf = &state->rpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf->ready = 0;
+ state->format.format = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ }
+ return put_user(state->format.format, p);
+
+ case SNDCTL_DSP_CHANNELS:
+ if (get_user(val, p))
+ return -EFAULT;
+ YMFDBGX("ymf_ioctl: cmd 0x%x(CHAN) ch %d\n", cmd, val);
+ if (val != 0) {
+ if (file->f_mode & FMODE_WRITE) {
+ ymf_wait_dac(state);
+ if (val == 1 || val == 2) {
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf = &state->wpcm.dmabuf;
+ dmabuf->ready = 0;
+ state->format.voices = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ ymf_stop_adc(state);
+ if (val == 1 || val == 2) {
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ dmabuf = &state->rpcm.dmabuf;
+ dmabuf->ready = 0;
+ state->format.voices = val;
+ ymf_pcm_update_shift(&state->format);
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ }
+ }
+ }
+ return put_user(state->format.voices, p);
+
+ case SNDCTL_DSP_POST:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(POST)\n", cmd);
+ /*
+ * Quoting OSS PG:
+ * The ioctl SNDCTL_DSP_POST is a lightweight version of
+ * SNDCTL_DSP_SYNC. It just tells to the driver that there
+ * is likely to be a pause in the output. This makes it
+ * possible for the device to handle the pause more
+ * intelligently. This ioctl doesn't block the application.
+ *
+ * The paragraph above is a clumsy way to say "flush ioctl".
+ * This ioctl is used by mpg123.
+ */
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ if (state->wpcm.dmabuf.count != 0 && !state->wpcm.running) {
+ ymf_start_dac(state);
+ }
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ return 0;
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ if (get_user(val, p))
+ return -EFAULT;
+ YMFDBGX("ymf_ioctl: cmd 0x%x(SETFRAG) fr 0x%04x:%04x(%d:%d)\n",
+ cmd,
+ (val >> 16) & 0xFFFF, val & 0xFFFF,
+ (val >> 16) & 0xFFFF, val & 0xFFFF);
+ dmabuf = &state->wpcm.dmabuf;
+ dmabuf->ossfragshift = val & 0xffff;
+ dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
+ if (dmabuf->ossfragshift < 4)
+ dmabuf->ossfragshift = 4;
+ if (dmabuf->ossfragshift > 15)
+ dmabuf->ossfragshift = 15;
+ return 0;
+
+ case SNDCTL_DSP_GETOSPACE:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETOSPACE)\n", cmd);
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ dmabuf = &state->wpcm.dmabuf;
+ if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
+ return val;
+ redzone = ymf_calc_lend(state->format.rate);
+ redzone <<= state->format.shift;
+ redzone *= 3;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ abinfo.fragsize = dmabuf->fragsize;
+ abinfo.bytes = dmabuf->dmasize - dmabuf->count - redzone;
+ abinfo.fragstotal = dmabuf->numfrag;
+ abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_GETISPACE:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETISPACE)\n", cmd);
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ dmabuf = &state->rpcm.dmabuf;
+ if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
+ return val;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ abinfo.fragsize = dmabuf->fragsize;
+ abinfo.bytes = dmabuf->count;
+ abinfo.fragstotal = dmabuf->numfrag;
+ abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_NONBLOCK:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(NONBLOCK)\n", cmd);
+ file->f_flags |= O_NONBLOCK;
+ return 0;
+
+ case SNDCTL_DSP_GETCAPS:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETCAPS)\n", cmd);
+ /* return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP,
+ p); */
+ return put_user(0, p);
+
+ case SNDCTL_DSP_GETIPTR:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETIPTR)\n", cmd);
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ dmabuf = &state->rpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ cinfo.bytes = dmabuf->total_bytes;
+ cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
+ cinfo.ptr = dmabuf->hwptr;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ YMFDBGX("ymf_ioctl: GETIPTR ptr %d bytes %d\n",
+ cinfo.ptr, cinfo.bytes);
+ return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_GETOPTR:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(GETOPTR)\n", cmd);
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ dmabuf = &state->wpcm.dmabuf;
+ spin_lock_irqsave(&state->unit->reg_lock, flags);
+ cinfo.bytes = dmabuf->total_bytes;
+ cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
+ cinfo.ptr = dmabuf->hwptr;
+ spin_unlock_irqrestore(&state->unit->reg_lock, flags);
+ YMFDBGX("ymf_ioctl: GETOPTR ptr %d bytes %d\n",
+ cinfo.ptr, cinfo.bytes);
+ return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_SETDUPLEX:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(SETDUPLEX)\n", cmd);
+ return 0; /* Always duplex */
+
+ case SOUND_PCM_READ_RATE:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(READ_RATE)\n", cmd);
+ return put_user(state->format.rate, p);
+
+ case SOUND_PCM_READ_CHANNELS:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(READ_CH)\n", cmd);
+ return put_user(state->format.voices, p);
+
+ case SOUND_PCM_READ_BITS:
+ YMFDBGX("ymf_ioctl: cmd 0x%x(READ_BITS)\n", cmd);
+ return put_user(AFMT_S16_LE, p);
+
+ case SNDCTL_DSP_MAPINBUF:
+ case SNDCTL_DSP_MAPOUTBUF:
+ case SNDCTL_DSP_SETSYNCRO:
+ case SOUND_PCM_WRITE_FILTER:
+ case SOUND_PCM_READ_FILTER:
+ YMFDBGX("ymf_ioctl: cmd 0x%x unsupported\n", cmd);
+ return -ENOTTY;
+
+ default:
+ /*
+ * Some programs mix up audio devices and ioctls
+ * or perhaps they expect "universal" ioctls,
+ * for instance we get SNDCTL_TMR_CONTINUE here.
+ * (mpg123 -g 100 ends here too - to be fixed.)
+ */
+ YMFDBGX("ymf_ioctl: cmd 0x%x unknown\n", cmd);
+ break;
+ }
+ return -ENOTTY;
+}
+
+/*
+ * open(2)
+ * We use upper part of the minor to distinguish between soundcards.
+ * Channels are opened with a clone open.
+ */
+static int ymf_open(struct inode *inode, struct file *file)
+{
+ struct list_head *list;
+ ymfpci_t *unit = NULL;
+ int minor;
+ struct ymf_state *state;
+ int err;
+
+ minor = iminor(inode);
+ if ((minor & 0x0F) == 3) { /* /dev/dspN */
+ ;
+ } else {
+ return -ENXIO;
+ }
+
+ unit = NULL; /* gcc warns */
+ spin_lock(&ymf_devs_lock);
+ list_for_each(list, &ymf_devs) {
+ unit = list_entry(list, ymfpci_t, ymf_devs);
+ if (((unit->dev_audio ^ minor) & ~0x0F) == 0)
+ break;
+ }
+ spin_unlock(&ymf_devs_lock);
+ if (unit == NULL)
+ return -ENODEV;
+
+ down(&unit->open_sem);
+
+ if ((state = ymf_state_alloc(unit)) == NULL) {
+ up(&unit->open_sem);
+ return -ENOMEM;
+ }
+ list_add_tail(&state->chain, &unit->states);
+
+ file->private_data = state;
+
+ /*
+ * ymf_read and ymf_write that we borrowed from cs46xx
+ * allocate buffers with prog_dmabuf(). We call prog_dmabuf
+ * here so that in case of DMA memory exhaustion open
+ * fails rather than write.
+ *
+ * XXX prog_dmabuf allocates voice. Should allocate explicitly, above.
+ */
+ if (file->f_mode & FMODE_WRITE) {
+ if (!state->wpcm.dmabuf.ready) {
+ if ((err = prog_dmabuf(state, 0)) != 0) {
+ goto out_nodma;
+ }
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ if (!state->rpcm.dmabuf.ready) {
+ if ((err = prog_dmabuf(state, 1)) != 0) {
+ goto out_nodma;
+ }
+ }
+ }
+
+#if 0 /* test if interrupts work */
+ ymfpci_writew(unit, YDSXGR_TIMERCOUNT, 0xfffe); /* ~ 680ms */
+ ymfpci_writeb(unit, YDSXGR_TIMERCTRL,
+ (YDSXGR_TIMERCTRL_TEN|YDSXGR_TIMERCTRL_TIEN));
+#endif
+ up(&unit->open_sem);
+
+ return nonseekable_open(inode, file);
+
+out_nodma:
+ /*
+ * XXX Broken custom: "goto out_xxx" in other place is
+ * a nestable exception, but here it is not nestable due to semaphore.
+ * XXX Doubtful technique of self-describing objects....
+ */
+ dealloc_dmabuf(unit, &state->wpcm.dmabuf);
+ dealloc_dmabuf(unit, &state->rpcm.dmabuf);
+ ymf_pcm_free_substream(&state->wpcm);
+ ymf_pcm_free_substream(&state->rpcm);
+
+ list_del(&state->chain);
+ kfree(state);
+
+ up(&unit->open_sem);
+ return err;
+}
+
+static int ymf_release(struct inode *inode, struct file *file)
+{
+ struct ymf_state *state = (struct ymf_state *)file->private_data;
+ ymfpci_t *unit = state->unit;
+
+#if 0 /* test if interrupts work */
+ ymfpci_writeb(unit, YDSXGR_TIMERCTRL, 0);
+#endif
+
+ down(&unit->open_sem);
+
+ /*
+ * XXX Solve the case of O_NONBLOCK close - don't deallocate here.
+ * Deallocate when unloading the driver and we can wait.
+ */
+ ymf_wait_dac(state);
+ ymf_stop_adc(state); /* fortunately, it's immediate */
+ dealloc_dmabuf(unit, &state->wpcm.dmabuf);
+ dealloc_dmabuf(unit, &state->rpcm.dmabuf);
+ ymf_pcm_free_substream(&state->wpcm);
+ ymf_pcm_free_substream(&state->rpcm);
+
+ list_del(&state->chain);
+ file->private_data = NULL; /* Can you tell I programmed Solaris */
+ kfree(state);
+
+ up(&unit->open_sem);
+
+ return 0;
+}
+
+/*
+ * Mixer operations are based on cs46xx.
+ */
+static int ymf_open_mixdev(struct inode *inode, struct file *file)
+{
+ int minor = iminor(inode);
+ struct list_head *list;
+ ymfpci_t *unit;
+ int i;
+
+ spin_lock(&ymf_devs_lock);
+ list_for_each(list, &ymf_devs) {
+ unit = list_entry(list, ymfpci_t, ymf_devs);
+ for (i = 0; i < NR_AC97; i++) {
+ if (unit->ac97_codec[i] != NULL &&
+ unit->ac97_codec[i]->dev_mixer == minor) {
+ spin_unlock(&ymf_devs_lock);
+ goto match;
+ }
+ }
+ }
+ spin_unlock(&ymf_devs_lock);
+ return -ENODEV;
+
+ match:
+ file->private_data = unit->ac97_codec[i];
+
+ return nonseekable_open(inode, file);
+}
+
+static int ymf_ioctl_mixdev(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
+
+ return codec->mixer_ioctl(codec, cmd, arg);
+}
+
+static int ymf_release_mixdev(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static /*const*/ struct file_operations ymf_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = ymf_read,
+ .write = ymf_write,
+ .poll = ymf_poll,
+ .ioctl = ymf_ioctl,
+ .mmap = ymf_mmap,
+ .open = ymf_open,
+ .release = ymf_release,
+};
+
+static /*const*/ struct file_operations ymf_mixer_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .ioctl = ymf_ioctl_mixdev,
+ .open = ymf_open_mixdev,
+ .release = ymf_release_mixdev,
+};
+
+/*
+ */
+
+static int ymf_suspend(struct pci_dev *pcidev, pm_message_t unused)
+{
+ struct ymf_unit *unit = pci_get_drvdata(pcidev);
+ unsigned long flags;
+ struct ymf_dmabuf *dmabuf;
+ struct list_head *p;
+ struct ymf_state *state;
+ struct ac97_codec *codec;
+ int i;
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+
+ unit->suspended = 1;
+
+ for (i = 0; i < NR_AC97; i++) {
+ if ((codec = unit->ac97_codec[i]) != NULL)
+ ac97_save_state(codec);
+ }
+
+ list_for_each(p, &unit->states) {
+ state = list_entry(p, struct ymf_state, chain);
+
+ dmabuf = &state->wpcm.dmabuf;
+ dmabuf->hwptr = dmabuf->swptr = 0;
+ dmabuf->total_bytes = 0;
+ dmabuf->count = 0;
+
+ dmabuf = &state->rpcm.dmabuf;
+ dmabuf->hwptr = dmabuf->swptr = 0;
+ dmabuf->total_bytes = 0;
+ dmabuf->count = 0;
+ }
+
+ ymfpci_writel(unit, YDSXGR_NATIVEDACOUTVOL, 0);
+ ymfpci_disable_dsp(unit);
+
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+
+ return 0;
+}
+
+static int ymf_resume(struct pci_dev *pcidev)
+{
+ struct ymf_unit *unit = pci_get_drvdata(pcidev);
+ unsigned long flags;
+ struct list_head *p;
+ struct ymf_state *state;
+ struct ac97_codec *codec;
+ int i;
+
+ ymfpci_aclink_reset(unit->pci);
+ ymfpci_codec_ready(unit, 0, 1); /* prints diag if not ready. */
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+ /* XXX At this time the legacy registers are probably deprogrammed. */
+#endif
+
+ ymfpci_download_image(unit);
+
+ ymf_memload(unit);
+
+ spin_lock_irqsave(&unit->reg_lock, flags);
+
+ if (unit->start_count) {
+ ymfpci_writel(unit, YDSXGR_MODE, 3);
+ unit->active_bank = ymfpci_readl(unit, YDSXGR_CTRLSELECT) & 1;
+ }
+
+ for (i = 0; i < NR_AC97; i++) {
+ if ((codec = unit->ac97_codec[i]) != NULL)
+ ac97_restore_state(codec);
+ }
+
+ unit->suspended = 0;
+ list_for_each(p, &unit->states) {
+ state = list_entry(p, struct ymf_state, chain);
+ wake_up(&state->wpcm.dmabuf.wait);
+ wake_up(&state->rpcm.dmabuf.wait);
+ }
+
+ spin_unlock_irqrestore(&unit->reg_lock, flags);
+ return 0;
+}
+
+/*
+ * initialization routines
+ */
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+
+static int ymfpci_setup_legacy(ymfpci_t *unit, struct pci_dev *pcidev)
+{
+ int v;
+ int mpuio = -1, oplio = -1;
+
+ switch (unit->iomidi) {
+ case 0x330:
+ mpuio = 0;
+ break;
+ case 0x300:
+ mpuio = 1;
+ break;
+ case 0x332:
+ mpuio = 2;
+ break;
+ case 0x334:
+ mpuio = 3;
+ break;
+ default: ;
+ }
+
+ switch (unit->iosynth) {
+ case 0x388:
+ oplio = 0;
+ break;
+ case 0x398:
+ oplio = 1;
+ break;
+ case 0x3a0:
+ oplio = 2;
+ break;
+ case 0x3a8:
+ oplio = 3;
+ break;
+ default: ;
+ }
+
+ if (mpuio >= 0 || oplio >= 0) {
+ /* 0x0020: 1 - 10 bits of I/O address decoded, 0 - 16 bits. */
+ v = 0x001e;
+ pci_write_config_word(pcidev, PCIR_LEGCTRL, v);
+
+ switch (pcidev->device) {
+ case PCI_DEVICE_ID_YAMAHA_724:
+ case PCI_DEVICE_ID_YAMAHA_740:
+ case PCI_DEVICE_ID_YAMAHA_724F:
+ case PCI_DEVICE_ID_YAMAHA_740C:
+ v = 0x8800;
+ if (mpuio >= 0) { v |= mpuio<<4; }
+ if (oplio >= 0) { v |= oplio; }
+ pci_write_config_word(pcidev, PCIR_ELEGCTRL, v);
+ break;
+
+ case PCI_DEVICE_ID_YAMAHA_744:
+ case PCI_DEVICE_ID_YAMAHA_754:
+ v = 0x8800;
+ pci_write_config_word(pcidev, PCIR_ELEGCTRL, v);
+ if (oplio >= 0) {
+ pci_write_config_word(pcidev, PCIR_OPLADR, unit->iosynth);
+ }
+ if (mpuio >= 0) {
+ pci_write_config_word(pcidev, PCIR_MPUADR, unit->iomidi);
+ }
+ break;
+
+ default:
+ printk(KERN_ERR "ymfpci: Unknown device ID: 0x%x\n",
+ pcidev->device);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+#endif /* CONFIG_SOUND_YMFPCI_LEGACY */
+
+static void ymfpci_aclink_reset(struct pci_dev * pci)
+{
+ u8 cmd;
+
+ /*
+ * In the 744, 754 only 0x01 exists, 0x02 is undefined.
+ * It does not seem to hurt to trip both regardless of revision.
+ */
+ pci_read_config_byte(pci, PCIR_DSXGCTRL, &cmd);
+ pci_write_config_byte(pci, PCIR_DSXGCTRL, cmd & 0xfc);
+ pci_write_config_byte(pci, PCIR_DSXGCTRL, cmd | 0x03);
+ pci_write_config_byte(pci, PCIR_DSXGCTRL, cmd & 0xfc);
+
+ pci_write_config_word(pci, PCIR_DSXPWRCTRL1, 0);
+ pci_write_config_word(pci, PCIR_DSXPWRCTRL2, 0);
+}
+
+static void ymfpci_enable_dsp(ymfpci_t *codec)
+{
+ ymfpci_writel(codec, YDSXGR_CONFIG, 0x00000001);
+}
+
+static void ymfpci_disable_dsp(ymfpci_t *codec)
+{
+ u32 val;
+ int timeout = 1000;
+
+ val = ymfpci_readl(codec, YDSXGR_CONFIG);
+ if (val)
+ ymfpci_writel(codec, YDSXGR_CONFIG, 0x00000000);
+ while (timeout-- > 0) {
+ val = ymfpci_readl(codec, YDSXGR_STATUS);
+ if ((val & 0x00000002) == 0)
+ break;
+ }
+}
+
+#include "ymfpci_image.h"
+
+static void ymfpci_download_image(ymfpci_t *codec)
+{
+ int i, ver_1e;
+ u16 ctrl;
+
+ ymfpci_writel(codec, YDSXGR_NATIVEDACOUTVOL, 0x00000000);
+ ymfpci_disable_dsp(codec);
+ ymfpci_writel(codec, YDSXGR_MODE, 0x00010000);
+ ymfpci_writel(codec, YDSXGR_MODE, 0x00000000);
+ ymfpci_writel(codec, YDSXGR_MAPOFREC, 0x00000000);
+ ymfpci_writel(codec, YDSXGR_MAPOFEFFECT, 0x00000000);
+ ymfpci_writel(codec, YDSXGR_PLAYCTRLBASE, 0x00000000);
+ ymfpci_writel(codec, YDSXGR_RECCTRLBASE, 0x00000000);
+ ymfpci_writel(codec, YDSXGR_EFFCTRLBASE, 0x00000000);
+ ctrl = ymfpci_readw(codec, YDSXGR_GLOBALCTRL);
+ ymfpci_writew(codec, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
+
+ /* setup DSP instruction code */
+ for (i = 0; i < YDSXG_DSPLENGTH / 4; i++)
+ ymfpci_writel(codec, YDSXGR_DSPINSTRAM + (i << 2), DspInst[i]);
+
+ switch (codec->pci->device) {
+ case PCI_DEVICE_ID_YAMAHA_724F:
+ case PCI_DEVICE_ID_YAMAHA_740C:
+ case PCI_DEVICE_ID_YAMAHA_744:
+ case PCI_DEVICE_ID_YAMAHA_754:
+ ver_1e = 1;
+ break;
+ default:
+ ver_1e = 0;
+ }
+
+ if (ver_1e) {
+ /* setup control instruction code */
+ for (i = 0; i < YDSXG_CTRLLENGTH / 4; i++)
+ ymfpci_writel(codec, YDSXGR_CTRLINSTRAM + (i << 2), CntrlInst1E[i]);
+ } else {
+ for (i = 0; i < YDSXG_CTRLLENGTH / 4; i++)
+ ymfpci_writel(codec, YDSXGR_CTRLINSTRAM + (i << 2), CntrlInst[i]);
+ }
+
+ ymfpci_enable_dsp(codec);
+
+ /* 0.02s sounds not too bad, we may do schedule_timeout() later. */
+ mdelay(20); /* seems we need some delay after downloading image.. */
+}
+
+static int ymfpci_memalloc(ymfpci_t *codec)
+{
+ unsigned int playback_ctrl_size;
+ unsigned int bank_size_playback;
+ unsigned int bank_size_capture;
+ unsigned int bank_size_effect;
+ unsigned int size;
+ unsigned int off;
+ char *ptr;
+ dma_addr_t pba;
+ int voice, bank;
+
+ playback_ctrl_size = 4 + 4 * YDSXG_PLAYBACK_VOICES;
+ bank_size_playback = ymfpci_readl(codec, YDSXGR_PLAYCTRLSIZE) << 2;
+ bank_size_capture = ymfpci_readl(codec, YDSXGR_RECCTRLSIZE) << 2;
+ bank_size_effect = ymfpci_readl(codec, YDSXGR_EFFCTRLSIZE) << 2;
+ codec->work_size = YDSXG_DEFAULT_WORK_SIZE;
+
+ size = ((playback_ctrl_size + 0x00ff) & ~0x00ff) +
+ ((bank_size_playback * 2 * YDSXG_PLAYBACK_VOICES + 0xff) & ~0xff) +
+ ((bank_size_capture * 2 * YDSXG_CAPTURE_VOICES + 0xff) & ~0xff) +
+ ((bank_size_effect * 2 * YDSXG_EFFECT_VOICES + 0xff) & ~0xff) +
+ codec->work_size;
+
+ ptr = pci_alloc_consistent(codec->pci, size + 0xff, &pba);
+ if (ptr == NULL)
+ return -ENOMEM;
+ codec->dma_area_va = ptr;
+ codec->dma_area_ba = pba;
+ codec->dma_area_size = size + 0xff;
+
+ off = (unsigned long)ptr & 0xff;
+ if (off) {
+ ptr += 0x100 - off;
+ pba += 0x100 - off;
+ }
+
+ /*
+ * Hardware requires only ptr[playback_ctrl_size] zeroed,
+ * but in our judgement it is a wrong kind of savings, so clear it all.
+ */
+ memset(ptr, 0, size);
+
+ codec->ctrl_playback = (u32 *)ptr;
+ codec->ctrl_playback_ba = pba;
+ codec->ctrl_playback[0] = cpu_to_le32(YDSXG_PLAYBACK_VOICES);
+ ptr += (playback_ctrl_size + 0x00ff) & ~0x00ff;
+ pba += (playback_ctrl_size + 0x00ff) & ~0x00ff;
+
+ off = 0;
+ for (voice = 0; voice < YDSXG_PLAYBACK_VOICES; voice++) {
+ codec->voices[voice].number = voice;
+ codec->voices[voice].bank =
+ (ymfpci_playback_bank_t *) (ptr + off);
+ codec->voices[voice].bank_ba = pba + off;
+ off += 2 * bank_size_playback; /* 2 banks */
+ }
+ off = (off + 0xff) & ~0xff;
+ ptr += off;
+ pba += off;
+
+ off = 0;
+ codec->bank_base_capture = pba;
+ for (voice = 0; voice < YDSXG_CAPTURE_VOICES; voice++)
+ for (bank = 0; bank < 2; bank++) {
+ codec->bank_capture[voice][bank] =
+ (ymfpci_capture_bank_t *) (ptr + off);
+ off += bank_size_capture;
+ }
+ off = (off + 0xff) & ~0xff;
+ ptr += off;
+ pba += off;
+
+ off = 0;
+ codec->bank_base_effect = pba;
+ for (voice = 0; voice < YDSXG_EFFECT_VOICES; voice++)
+ for (bank = 0; bank < 2; bank++) {
+ codec->bank_effect[voice][bank] =
+ (ymfpci_effect_bank_t *) (ptr + off);
+ off += bank_size_effect;
+ }
+ off = (off + 0xff) & ~0xff;
+ ptr += off;
+ pba += off;
+
+ codec->work_base = pba;
+
+ return 0;
+}
+
+static void ymfpci_memfree(ymfpci_t *codec)
+{
+ ymfpci_writel(codec, YDSXGR_PLAYCTRLBASE, 0);
+ ymfpci_writel(codec, YDSXGR_RECCTRLBASE, 0);
+ ymfpci_writel(codec, YDSXGR_EFFCTRLBASE, 0);
+ ymfpci_writel(codec, YDSXGR_WORKBASE, 0);
+ ymfpci_writel(codec, YDSXGR_WORKSIZE, 0);
+ pci_free_consistent(codec->pci,
+ codec->dma_area_size, codec->dma_area_va, codec->dma_area_ba);
+}
+
+static void ymf_memload(ymfpci_t *unit)
+{
+
+ ymfpci_writel(unit, YDSXGR_PLAYCTRLBASE, unit->ctrl_playback_ba);
+ ymfpci_writel(unit, YDSXGR_RECCTRLBASE, unit->bank_base_capture);
+ ymfpci_writel(unit, YDSXGR_EFFCTRLBASE, unit->bank_base_effect);
+ ymfpci_writel(unit, YDSXGR_WORKBASE, unit->work_base);
+ ymfpci_writel(unit, YDSXGR_WORKSIZE, unit->work_size >> 2);
+
+ /* S/PDIF output initialization */
+ ymfpci_writew(unit, YDSXGR_SPDIFOUTCTRL, 0);
+ ymfpci_writew(unit, YDSXGR_SPDIFOUTSTATUS,
+ SND_PCM_AES0_CON_EMPHASIS_NONE |
+ (SND_PCM_AES1_CON_ORIGINAL << 8) |
+ (SND_PCM_AES1_CON_PCM_CODER << 8));
+
+ /* S/PDIF input initialization */
+ ymfpci_writew(unit, YDSXGR_SPDIFINCTRL, 0);
+
+ /* move this volume setup to mixer */
+ ymfpci_writel(unit, YDSXGR_NATIVEDACOUTVOL, 0x3fff3fff);
+ ymfpci_writel(unit, YDSXGR_BUF441OUTVOL, 0);
+ ymfpci_writel(unit, YDSXGR_NATIVEADCINVOL, 0x3fff3fff);
+ ymfpci_writel(unit, YDSXGR_NATIVEDACINVOL, 0x3fff3fff);
+}
+
+static int ymf_ac97_init(ymfpci_t *unit, int num_ac97)
+{
+ struct ac97_codec *codec;
+ u16 eid;
+
+ if ((codec = ac97_alloc_codec()) == NULL)
+ return -ENOMEM;
+
+ /* initialize some basic codec information, other fields will be filled
+ in ac97_probe_codec */
+ codec->private_data = unit;
+ codec->id = num_ac97;
+
+ codec->codec_read = ymfpci_codec_read;
+ codec->codec_write = ymfpci_codec_write;
+
+ if (ac97_probe_codec(codec) == 0) {
+ printk(KERN_ERR "ymfpci: ac97_probe_codec failed\n");
+ goto out_kfree;
+ }
+
+ eid = ymfpci_codec_read(codec, AC97_EXTENDED_ID);
+ if (eid==0xFFFF) {
+ printk(KERN_WARNING "ymfpci: no codec attached ?\n");
+ goto out_kfree;
+ }
+
+ unit->ac97_features = eid;
+
+ if ((codec->dev_mixer = register_sound_mixer(&ymf_mixer_fops, -1)) < 0) {
+ printk(KERN_ERR "ymfpci: couldn't register mixer!\n");
+ goto out_kfree;
+ }
+
+ unit->ac97_codec[num_ac97] = codec;
+
+ return 0;
+ out_kfree:
+ ac97_release_codec(codec);
+ return -ENODEV;
+}
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+# ifdef MODULE
+static int mpu_io;
+static int synth_io;
+module_param(mpu_io, int, 0);
+module_param(synth_io, int, 0);
+# else
+static int mpu_io = 0x330;
+static int synth_io = 0x388;
+# endif
+static int assigned;
+#endif /* CONFIG_SOUND_YMFPCI_LEGACY */
+
+static int __devinit ymf_probe_one(struct pci_dev *pcidev, const struct pci_device_id *ent)
+{
+ u16 ctrl;
+ unsigned long base;
+ ymfpci_t *codec;
+
+ int err;
+
+ if ((err = pci_enable_device(pcidev)) != 0) {
+ printk(KERN_ERR "ymfpci: pci_enable_device failed\n");
+ return err;
+ }
+ base = pci_resource_start(pcidev, 0);
+
+ if ((codec = kmalloc(sizeof(ymfpci_t), GFP_KERNEL)) == NULL) {
+ printk(KERN_ERR "ymfpci: no core\n");
+ return -ENOMEM;
+ }
+ memset(codec, 0, sizeof(*codec));
+
+ spin_lock_init(&codec->reg_lock);
+ spin_lock_init(&codec->voice_lock);
+ spin_lock_init(&codec->ac97_lock);
+ init_MUTEX(&codec->open_sem);
+ INIT_LIST_HEAD(&codec->states);
+ codec->pci = pcidev;
+
+ pci_read_config_byte(pcidev, PCI_REVISION_ID, &codec->rev);
+
+ if (request_mem_region(base, 0x8000, "ymfpci") == NULL) {
+ printk(KERN_ERR "ymfpci: unable to request mem region\n");
+ goto out_free;
+ }
+
+ if ((codec->reg_area_virt = ioremap(base, 0x8000)) == NULL) {
+ printk(KERN_ERR "ymfpci: unable to map registers\n");
+ goto out_release_region;
+ }
+
+ pci_set_master(pcidev);
+
+ printk(KERN_INFO "ymfpci: %s at 0x%lx IRQ %d\n",
+ (char *)ent->driver_data, base, pcidev->irq);
+
+ ymfpci_aclink_reset(pcidev);
+ if (ymfpci_codec_ready(codec, 0, 1) < 0)
+ goto out_unmap;
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+ if (assigned == 0) {
+ codec->iomidi = mpu_io;
+ codec->iosynth = synth_io;
+ if (ymfpci_setup_legacy(codec, pcidev) < 0)
+ goto out_unmap;
+ assigned = 1;
+ }
+#endif
+
+ ymfpci_download_image(codec);
+
+ if (ymfpci_memalloc(codec) < 0)
+ goto out_disable_dsp;
+ ymf_memload(codec);
+
+ if (request_irq(pcidev->irq, ymf_interrupt, SA_SHIRQ, "ymfpci", codec) != 0) {
+ printk(KERN_ERR "ymfpci: unable to request IRQ %d\n",
+ pcidev->irq);
+ goto out_memfree;
+ }
+
+ /* register /dev/dsp */
+ if ((codec->dev_audio = register_sound_dsp(&ymf_fops, -1)) < 0) {
+ printk(KERN_ERR "ymfpci: unable to register dsp\n");
+ goto out_free_irq;
+ }
+
+ /*
+ * Poke just the primary for the moment.
+ */
+ if ((err = ymf_ac97_init(codec, 0)) != 0)
+ goto out_unregister_sound_dsp;
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+ codec->opl3_data.name = "ymfpci";
+ codec->mpu_data.name = "ymfpci";
+
+ codec->opl3_data.io_base = codec->iosynth;
+ codec->opl3_data.irq = -1;
+
+ codec->mpu_data.io_base = codec->iomidi;
+ codec->mpu_data.irq = -1; /* May be different from our PCI IRQ. */
+
+ if (codec->iomidi) {
+ if (!probe_uart401(&codec->mpu_data, THIS_MODULE)) {
+ codec->iomidi = 0; /* XXX kludge */
+ }
+ }
+#endif /* CONFIG_SOUND_YMFPCI_LEGACY */
+
+ /* put it into driver list */
+ spin_lock(&ymf_devs_lock);
+ list_add_tail(&codec->ymf_devs, &ymf_devs);
+ spin_unlock(&ymf_devs_lock);
+ pci_set_drvdata(pcidev, codec);
+
+ return 0;
+
+ out_unregister_sound_dsp:
+ unregister_sound_dsp(codec->dev_audio);
+ out_free_irq:
+ free_irq(pcidev->irq, codec);
+ out_memfree:
+ ymfpci_memfree(codec);
+ out_disable_dsp:
+ ymfpci_disable_dsp(codec);
+ ctrl = ymfpci_readw(codec, YDSXGR_GLOBALCTRL);
+ ymfpci_writew(codec, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
+ ymfpci_writel(codec, YDSXGR_STATUS, ~0);
+ out_unmap:
+ iounmap(codec->reg_area_virt);
+ out_release_region:
+ release_mem_region(pci_resource_start(pcidev, 0), 0x8000);
+ out_free:
+ if (codec->ac97_codec[0])
+ ac97_release_codec(codec->ac97_codec[0]);
+ return -ENODEV;
+}
+
+static void __devexit ymf_remove_one(struct pci_dev *pcidev)
+{
+ __u16 ctrl;
+ ymfpci_t *codec = pci_get_drvdata(pcidev);
+
+ /* remove from list of devices */
+ spin_lock(&ymf_devs_lock);
+ list_del(&codec->ymf_devs);
+ spin_unlock(&ymf_devs_lock);
+
+ unregister_sound_mixer(codec->ac97_codec[0]->dev_mixer);
+ ac97_release_codec(codec->ac97_codec[0]);
+ unregister_sound_dsp(codec->dev_audio);
+ free_irq(pcidev->irq, codec);
+ ymfpci_memfree(codec);
+ ymfpci_writel(codec, YDSXGR_STATUS, ~0);
+ ymfpci_disable_dsp(codec);
+ ctrl = ymfpci_readw(codec, YDSXGR_GLOBALCTRL);
+ ymfpci_writew(codec, YDSXGR_GLOBALCTRL, ctrl & ~0x0007);
+ iounmap(codec->reg_area_virt);
+ release_mem_region(pci_resource_start(pcidev, 0), 0x8000);
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+ if (codec->iomidi) {
+ unload_uart401(&codec->mpu_data);
+ }
+#endif /* CONFIG_SOUND_YMFPCI_LEGACY */
+}
+
+MODULE_AUTHOR("Jaroslav Kysela");
+MODULE_DESCRIPTION("Yamaha YMF7xx PCI Audio");
+MODULE_LICENSE("GPL");
+
+static struct pci_driver ymfpci_driver = {
+ .name = "ymfpci",
+ .id_table = ymf_id_tbl,
+ .probe = ymf_probe_one,
+ .remove = __devexit_p(ymf_remove_one),
+ .suspend = ymf_suspend,
+ .resume = ymf_resume
+};
+
+static int __init ymf_init_module(void)
+{
+ return pci_module_init(&ymfpci_driver);
+}
+
+static void __exit ymf_cleanup_module (void)
+{
+ pci_unregister_driver(&ymfpci_driver);
+}
+
+module_init(ymf_init_module);
+module_exit(ymf_cleanup_module);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-11 23:16:36 +0000