--- /dev/null
+/*
+ * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
+ * Driver EMU10K1X chips
+ *
+ * Parts of this code were adapted from audigyls.c driver which is
+ * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
+ *
+ * BUGS:
+ * --
+ *
+ * TODO:
+ *
+ * Chips (SB0200 model):
+ * - EMU10K1X-DBQ
+ * - STAC 9708T
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/info.h>
+#include <sound/rawmidi.h>
+
+MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
+MODULE_DESCRIPTION("EMU10K1X");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
+
+// module parameters (see "Module Parameters")
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
+
+
+// some definitions were borrowed from emu10k1 driver as they seem to be the same
+/************************************************************************************************/
+/* PCI function 0 registers, address = <val> + PCIBASE0 */
+/************************************************************************************************/
+
+#define PTR 0x00 /* Indexed register set pointer register */
+ /* NOTE: The CHANNELNUM and ADDRESS words can */
+ /* be modified independently of each other. */
+
+#define DATA 0x04 /* Indexed register set data register */
+
+#define IPR 0x08 /* Global interrupt pending register */
+ /* Clear pending interrupts by writing a 1 to */
+ /* the relevant bits and zero to the other bits */
+#define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */
+#define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */
+#define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */
+#define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
+#define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */
+#define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
+
+#define INTE 0x0c /* Interrupt enable register */
+#define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */
+#define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */
+#define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */
+#define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
+#define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */
+#define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
+
+#define HCFG 0x14 /* Hardware config register */
+
+#define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */
+ /* NOTE: This should generally never be used. */
+#define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */
+ /* Should be set to 1 when the EMU10K1 is */
+ /* completely initialized. */
+#define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */
+
+
+#define AC97DATA 0x1c /* AC97 register set data register (16 bit) */
+
+#define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */
+
+/********************************************************************************************************/
+/* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */
+/********************************************************************************************************/
+#define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */
+ /* One list entry: 4 bytes for DMA address,
+ * 4 bytes for period_size << 16.
+ * One list entry is 8 bytes long.
+ * One list entry for each period in the buffer.
+ */
+#define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */
+#define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */
+#define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA address */
+#define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */
+#define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */
+#define PLAYBACK_UNKNOWN1 0x07
+#define PLAYBACK_UNKNOWN2 0x08
+
+/* Only one capture channel supported */
+#define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */
+#define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */
+#define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */
+#define CAPTURE_UNKNOWN 0x13
+
+/* From 0x20 - 0x3f, last samples played on each channel */
+
+#define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */
+#define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */
+#define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */
+#define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */
+#define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */
+
+#define ROUTING 0x41 /* Setup sound routing ? */
+#define ROUTING_FRONT_LEFT 0x00000001
+#define ROUTING_FRONT_RIGHT 0x00000002
+#define ROUTING_REAR_LEFT 0x00000004
+#define ROUTING_REAR_RIGHT 0x00000008
+#define ROUTING_CENTER_LFE 0x00010000
+
+#define SPCS0 0x42 /* SPDIF output Channel Status 0 register */
+
+#define SPCS1 0x43 /* SPDIF output Channel Status 1 register */
+
+#define SPCS2 0x44 /* SPDIF output Channel Status 2 register */
+
+#define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */
+#define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */
+#define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */
+#define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */
+#define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */
+#define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */
+#define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */
+#define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */
+#define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */
+#define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */
+#define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */
+#define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */
+#define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */
+#define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */
+#define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */
+#define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */
+#define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */
+#define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */
+#define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */
+#define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */
+#define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */
+#define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */
+#define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */
+
+#define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
+
+/* This is the MPU port on the card */
+#define MUDATA 0x47
+#define MUCMD 0x48
+#define MUSTAT MUCMD
+
+/* From 0x50 - 0x5f, last samples captured */
+
+/*
+ * The hardware has 3 channels for playback and 1 for capture.
+ * - channel 0 is the front channel
+ * - channel 1 is the rear channel
+ * - channel 2 is the center/lfe channel
+ * Volume is controlled by the AC97 for the front and rear channels by
+ * the PCM Playback Volume, Sigmatel Surround Playback Volume and
+ * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
+ * the front/rear channel mixing in the REAR OUT jack. When using the
+ * 4-Speaker Stereo, both front and rear channels will be mixed in the
+ * REAR OUT.
+ * The center/lfe channel has no volume control and cannot be muted during
+ * playback.
+ */
+
+struct emu10k1x_voice {
+ struct emu10k1x *emu;
+ int number;
+ int use;
+
+ struct emu10k1x_pcm *epcm;
+};
+
+struct emu10k1x_pcm {
+ struct emu10k1x *emu;
+ struct snd_pcm_substream *substream;
+ struct emu10k1x_voice *voice;
+ unsigned short running;
+};
+
+struct emu10k1x_midi {
+ struct emu10k1x *emu;
+ struct snd_rawmidi *rmidi;
+ struct snd_rawmidi_substream *substream_input;
+ struct snd_rawmidi_substream *substream_output;
+ unsigned int midi_mode;
+ spinlock_t input_lock;
+ spinlock_t output_lock;
+ spinlock_t open_lock;
+ int tx_enable, rx_enable;
+ int port;
+ int ipr_tx, ipr_rx;
+ void (*interrupt)(struct emu10k1x *emu, unsigned int status);
+};
+
+// definition of the chip-specific record
+struct emu10k1x {
+ struct snd_card *card;
+ struct pci_dev *pci;
+
+ unsigned long port;
+ struct resource *res_port;
+ int irq;
+
+ unsigned char revision; /* chip revision */
+ unsigned int serial; /* serial number */
+ unsigned short model; /* subsystem id */
+
+ spinlock_t emu_lock;
+ spinlock_t voice_lock;
+
+ struct snd_ac97 *ac97;
+ struct snd_pcm *pcm;
+
+ struct emu10k1x_voice voices[3];
+ struct emu10k1x_voice capture_voice;
+ u32 spdif_bits[3]; // SPDIF out setup
+
+ struct snd_dma_buffer dma_buffer;
+
+ struct emu10k1x_midi midi;
+};
+
+/* hardware definition */
+static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
+ .info = (SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = (32*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (16*1024),
+ .periods_min = 2,
+ .periods_max = 8,
+ .fifo_size = 0,
+};
+
+static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
+ .info = (SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = (32*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (16*1024),
+ .periods_min = 2,
+ .periods_max = 2,
+ .fifo_size = 0,
+};
+
+static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
+ unsigned int reg,
+ unsigned int chn)
+{
+ unsigned long flags;
+ unsigned int regptr, val;
+
+ regptr = (reg << 16) | chn;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ outl(regptr, emu->port + PTR);
+ val = inl(emu->port + DATA);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+ return val;
+}
+
+static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
+ unsigned int reg,
+ unsigned int chn,
+ unsigned int data)
+{
+ unsigned int regptr;
+ unsigned long flags;
+
+ regptr = (reg << 16) | chn;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ outl(regptr, emu->port + PTR);
+ outl(data, emu->port + DATA);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
+{
+ unsigned long flags;
+ unsigned int intr_enable;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ intr_enable = inl(emu->port + INTE) | intrenb;
+ outl(intr_enable, emu->port + INTE);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
+{
+ unsigned long flags;
+ unsigned int intr_enable;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ intr_enable = inl(emu->port + INTE) & ~intrenb;
+ outl(intr_enable, emu->port + INTE);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ outl(value, emu->port + GPIO);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
+{
+ kfree(runtime->private_data);
+}
+
+static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
+{
+ struct emu10k1x_pcm *epcm;
+
+ if ((epcm = voice->epcm) == NULL)
+ return;
+ if (epcm->substream == NULL)
+ return;
+#if 0
+ dev_info(emu->card->dev,
+ "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
+ epcm->substream->ops->pointer(epcm->substream),
+ snd_pcm_lib_period_bytes(epcm->substream),
+ snd_pcm_lib_buffer_bytes(epcm->substream));
+#endif
+ snd_pcm_period_elapsed(epcm->substream);
+}
+
+/* open callback */
+static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *chip = snd_pcm_substream_chip(substream);
+ struct emu10k1x_pcm *epcm;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
+ return err;
+ }
+ if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
+ return err;
+
+ epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
+ if (epcm == NULL)
+ return -ENOMEM;
+ epcm->emu = chip;
+ epcm->substream = substream;
+
+ runtime->private_data = epcm;
+ runtime->private_free = snd_emu10k1x_pcm_free_substream;
+
+ runtime->hw = snd_emu10k1x_playback_hw;
+
+ return 0;
+}
+
+/* close callback */
+static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+/* hw_params callback */
+static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+
+ if (! epcm->voice) {
+ epcm->voice = &epcm->emu->voices[substream->pcm->device];
+ epcm->voice->use = 1;
+ epcm->voice->epcm = epcm;
+ }
+
+ return snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+}
+
+/* hw_free callback */
+static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm;
+
+ if (runtime->private_data == NULL)
+ return 0;
+
+ epcm = runtime->private_data;
+
+ if (epcm->voice) {
+ epcm->voice->use = 0;
+ epcm->voice->epcm = NULL;
+ epcm->voice = NULL;
+ }
+
+ return snd_pcm_lib_free_pages(substream);
+}
+
+/* prepare callback */
+static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+ int voice = epcm->voice->number;
+ u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
+ u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
+ int i;
+
+ for(i = 0; i < runtime->periods; i++) {
+ *table_base++=runtime->dma_addr+(i*period_size_bytes);
+ *table_base++=period_size_bytes<<16;
+ }
+
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
+
+ snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
+
+ return 0;
+}
+
+/* trigger callback */
+static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+ int channel = epcm->voice->number;
+ int result = 0;
+
+ /*
+ dev_dbg(emu->card->dev,
+ "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n",
+ (int)emu, cmd, (int)substream->ops->pointer(substream));
+ */
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ if(runtime->periods == 2)
+ snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
+ else
+ snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
+ epcm->running = 1;
+ snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ epcm->running = 0;
+ snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
+ snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
+ break;
+ default:
+ result = -EINVAL;
+ break;
+ }
+ return result;
+}
+
+/* pointer callback */
+static snd_pcm_uframes_t
+snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+ int channel = epcm->voice->number;
+ snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
+
+ if (!epcm->running)
+ return 0;
+
+ ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
+ ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
+ ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
+
+ if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
+ return 0;
+
+ if (ptr3 != ptr4)
+ ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
+ ptr2 = bytes_to_frames(runtime, ptr1);
+ ptr2 += (ptr4 >> 3) * runtime->period_size;
+ ptr = ptr2;
+
+ if (ptr >= runtime->buffer_size)
+ ptr -= runtime->buffer_size;
+
+ return ptr;
+}
+
+/* operators */
+static struct snd_pcm_ops snd_emu10k1x_playback_ops = {
+ .open = snd_emu10k1x_playback_open,
+ .close = snd_emu10k1x_playback_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_emu10k1x_pcm_hw_params,
+ .hw_free = snd_emu10k1x_pcm_hw_free,
+ .prepare = snd_emu10k1x_pcm_prepare,
+ .trigger = snd_emu10k1x_pcm_trigger,
+ .pointer = snd_emu10k1x_pcm_pointer,
+};
+
+/* open_capture callback */
+static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *chip = snd_pcm_substream_chip(substream);
+ struct emu10k1x_pcm *epcm;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
+ return err;
+
+ epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
+ if (epcm == NULL)
+ return -ENOMEM;
+
+ epcm->emu = chip;
+ epcm->substream = substream;
+
+ runtime->private_data = epcm;
+ runtime->private_free = snd_emu10k1x_pcm_free_substream;
+
+ runtime->hw = snd_emu10k1x_capture_hw;
+
+ return 0;
+}
+
+/* close callback */
+static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+/* hw_params callback */
+static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+
+ if (! epcm->voice) {
+ if (epcm->emu->capture_voice.use)
+ return -EBUSY;
+ epcm->voice = &epcm->emu->capture_voice;
+ epcm->voice->epcm = epcm;
+ epcm->voice->use = 1;
+ }
+
+ return snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+}
+
+/* hw_free callback */
+static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ struct emu10k1x_pcm *epcm;
+
+ if (runtime->private_data == NULL)
+ return 0;
+ epcm = runtime->private_data;
+
+ if (epcm->voice) {
+ epcm->voice->use = 0;
+ epcm->voice->epcm = NULL;
+ epcm->voice = NULL;
+ }
+
+ return snd_pcm_lib_free_pages(substream);
+}
+
+/* prepare capture callback */
+static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
+ snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
+ snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
+ snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
+
+ return 0;
+}
+
+/* trigger_capture callback */
+static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+ int result = 0;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
+ INTE_CAP_0_HALF_LOOP);
+ snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
+ epcm->running = 1;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ epcm->running = 0;
+ snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
+ INTE_CAP_0_HALF_LOOP);
+ snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
+ break;
+ default:
+ result = -EINVAL;
+ break;
+ }
+ return result;
+}
+
+/* pointer_capture callback */
+static snd_pcm_uframes_t
+snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
+{
+ struct emu10k1x *emu = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct emu10k1x_pcm *epcm = runtime->private_data;
+ snd_pcm_uframes_t ptr;
+
+ if (!epcm->running)
+ return 0;
+
+ ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
+ if (ptr >= runtime->buffer_size)
+ ptr -= runtime->buffer_size;
+
+ return ptr;
+}
+
+static struct snd_pcm_ops snd_emu10k1x_capture_ops = {
+ .open = snd_emu10k1x_pcm_open_capture,
+ .close = snd_emu10k1x_pcm_close_capture,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_emu10k1x_pcm_hw_params_capture,
+ .hw_free = snd_emu10k1x_pcm_hw_free_capture,
+ .prepare = snd_emu10k1x_pcm_prepare_capture,
+ .trigger = snd_emu10k1x_pcm_trigger_capture,
+ .pointer = snd_emu10k1x_pcm_pointer_capture,
+};
+
+static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
+ unsigned short reg)
+{
+ struct emu10k1x *emu = ac97->private_data;
+ unsigned long flags;
+ unsigned short val;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ outb(reg, emu->port + AC97ADDRESS);
+ val = inw(emu->port + AC97DATA);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+ return val;
+}
+
+static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
+ unsigned short reg, unsigned short val)
+{
+ struct emu10k1x *emu = ac97->private_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ outb(reg, emu->port + AC97ADDRESS);
+ outw(val, emu->port + AC97DATA);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static int snd_emu10k1x_ac97(struct emu10k1x *chip)
+{
+ struct snd_ac97_bus *pbus;
+ struct snd_ac97_template ac97;
+ int err;
+ static struct snd_ac97_bus_ops ops = {
+ .write = snd_emu10k1x_ac97_write,
+ .read = snd_emu10k1x_ac97_read,
+ };
+
+ if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
+ return err;
+ pbus->no_vra = 1; /* we don't need VRA */
+
+ memset(&ac97, 0, sizeof(ac97));
+ ac97.private_data = chip;
+ ac97.scaps = AC97_SCAP_NO_SPDIF;
+ return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
+}
+
+static int snd_emu10k1x_free(struct emu10k1x *chip)
+{
+ snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
+ // disable interrupts
+ outl(0, chip->port + INTE);
+ // disable audio
+ outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
+
+ /* release the irq */
+ if (chip->irq >= 0)
+ free_irq(chip->irq, chip);
+
+ // release the i/o port
+ release_and_free_resource(chip->res_port);
+
+ // release the DMA
+ if (chip->dma_buffer.area) {
+ snd_dma_free_pages(&chip->dma_buffer);
+ }
+
+ pci_disable_device(chip->pci);
+
+ // release the data
+ kfree(chip);
+ return 0;
+}
+
+static int snd_emu10k1x_dev_free(struct snd_device *device)
+{
+ struct emu10k1x *chip = device->device_data;
+ return snd_emu10k1x_free(chip);
+}
+
+static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id)
+{
+ unsigned int status;
+
+ struct emu10k1x *chip = dev_id;
+ struct emu10k1x_voice *pvoice = chip->voices;
+ int i;
+ int mask;
+
+ status = inl(chip->port + IPR);
+
+ if (! status)
+ return IRQ_NONE;
+
+ // capture interrupt
+ if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
+ struct emu10k1x_voice *cap_voice = &chip->capture_voice;
+ if (cap_voice->use)
+ snd_emu10k1x_pcm_interrupt(chip, cap_voice);
+ else
+ snd_emu10k1x_intr_disable(chip,
+ INTE_CAP_0_LOOP |
+ INTE_CAP_0_HALF_LOOP);
+ }
+
+ mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
+ for (i = 0; i < 3; i++) {
+ if (status & mask) {
+ if (pvoice->use)
+ snd_emu10k1x_pcm_interrupt(chip, pvoice);
+ else
+ snd_emu10k1x_intr_disable(chip, mask);
+ }
+ pvoice++;
+ mask <<= 1;
+ }
+
+ if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
+ if (chip->midi.interrupt)
+ chip->midi.interrupt(chip, status);
+ else
+ snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
+ }
+
+ // acknowledge the interrupt if necessary
+ outl(status, chip->port + IPR);
+
+ /* dev_dbg(chip->card->dev, "interrupt %08x\n", status); */
+ return IRQ_HANDLED;
+}
+
+static const struct snd_pcm_chmap_elem surround_map[] = {
+ { .channels = 2,
+ .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+ { }
+};
+
+static const struct snd_pcm_chmap_elem clfe_map[] = {
+ { .channels = 2,
+ .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
+ { }
+};
+
+static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device)
+{
+ struct snd_pcm *pcm;
+ const struct snd_pcm_chmap_elem *map = NULL;
+ int err;
+ int capture = 0;
+
+ if (device == 0)
+ capture = 1;
+
+ if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
+ return err;
+
+ pcm->private_data = emu;
+
+ switch(device) {
+ case 0:
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
+ break;
+ case 1:
+ case 2:
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
+ break;
+ }
+
+ pcm->info_flags = 0;
+ switch(device) {
+ case 0:
+ strcpy(pcm->name, "EMU10K1X Front");
+ map = snd_pcm_std_chmaps;
+ break;
+ case 1:
+ strcpy(pcm->name, "EMU10K1X Rear");
+ map = surround_map;
+ break;
+ case 2:
+ strcpy(pcm->name, "EMU10K1X Center/LFE");
+ map = clfe_map;
+ break;
+ }
+ emu->pcm = pcm;
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(emu->pci),
+ 32*1024, 32*1024);
+
+ return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
+ 1 << 2, NULL);
+}
+
+static int snd_emu10k1x_create(struct snd_card *card,
+ struct pci_dev *pci,
+ struct emu10k1x **rchip)
+{
+ struct emu10k1x *chip;
+ int err;
+ int ch;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_emu10k1x_dev_free,
+ };
+
+ *rchip = NULL;
+
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+ if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
+ dev_err(card->dev, "error to set 28bit mask DMA\n");
+ pci_disable_device(pci);
+ return -ENXIO;
+ }
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (chip == NULL) {
+ pci_disable_device(pci);
+ return -ENOMEM;
+ }
+
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+
+ spin_lock_init(&chip->emu_lock);
+ spin_lock_init(&chip->voice_lock);
+
+ chip->port = pci_resource_start(pci, 0);
+ if ((chip->res_port = request_region(chip->port, 8,
+ "EMU10K1X")) == NULL) {
+ dev_err(card->dev, "cannot allocate the port 0x%lx\n",
+ chip->port);
+ snd_emu10k1x_free(chip);
+ return -EBUSY;
+ }
+
+ if (request_irq(pci->irq, snd_emu10k1x_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, chip)) {
+ dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
+ snd_emu10k1x_free(chip);
+ return -EBUSY;
+ }
+ chip->irq = pci->irq;
+
+ if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
+ 4 * 1024, &chip->dma_buffer) < 0) {
+ snd_emu10k1x_free(chip);
+ return -ENOMEM;
+ }
+
+ pci_set_master(pci);
+ /* read revision & serial */
+ chip->revision = pci->revision;
+ pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
+ pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
+ dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n", chip->model,
+ chip->revision, chip->serial);
+
+ outl(0, chip->port + INTE);
+
+ for(ch = 0; ch < 3; ch++) {
+ chip->voices[ch].emu = chip;
+ chip->voices[ch].number = ch;
+ }
+
+ /*
+ * Init to 0x02109204 :
+ * Clock accuracy = 0 (1000ppm)
+ * Sample Rate = 2 (48kHz)
+ * Audio Channel = 1 (Left of 2)
+ * Source Number = 0 (Unspecified)
+ * Generation Status = 1 (Original for Cat Code 12)
+ * Cat Code = 12 (Digital Signal Mixer)
+ * Mode = 0 (Mode 0)
+ * Emphasis = 0 (None)
+ * CP = 1 (Copyright unasserted)
+ * AN = 0 (Audio data)
+ * P = 0 (Consumer)
+ */
+ snd_emu10k1x_ptr_write(chip, SPCS0, 0,
+ chip->spdif_bits[0] =
+ SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+ SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+ SPCS_GENERATIONSTATUS | 0x00001200 |
+ 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+ snd_emu10k1x_ptr_write(chip, SPCS1, 0,
+ chip->spdif_bits[1] =
+ SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+ SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+ SPCS_GENERATIONSTATUS | 0x00001200 |
+ 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+ snd_emu10k1x_ptr_write(chip, SPCS2, 0,
+ chip->spdif_bits[2] =
+ SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+ SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+ SPCS_GENERATIONSTATUS | 0x00001200 |
+ 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+
+ snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
+ snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
+ snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
+
+ outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
+
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+ chip, &ops)) < 0) {
+ snd_emu10k1x_free(chip);
+ return err;
+ }
+ *rchip = chip;
+ return 0;
+}
+
+static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct emu10k1x *emu = entry->private_data;
+ unsigned long value,value1,value2;
+ unsigned long flags;
+ int i;
+
+ snd_iprintf(buffer, "Registers:\n\n");
+ for(i = 0; i < 0x20; i+=4) {
+ spin_lock_irqsave(&emu->emu_lock, flags);
+ value = inl(emu->port + i);
+ spin_unlock_irqrestore(&emu->emu_lock, flags);
+ snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
+ }
+ snd_iprintf(buffer, "\nRegisters\n\n");
+ for(i = 0; i <= 0x48; i++) {
+ value = snd_emu10k1x_ptr_read(emu, i, 0);
+ if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
+ value1 = snd_emu10k1x_ptr_read(emu, i, 1);
+ value2 = snd_emu10k1x_ptr_read(emu, i, 2);
+ snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
+ } else {
+ snd_iprintf(buffer, "%02X: %08lX\n", i, value);
+ }
+ }
+}
+
+static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct emu10k1x *emu = entry->private_data;
+ char line[64];
+ unsigned int reg, channel_id , val;
+
+ while (!snd_info_get_line(buffer, line, sizeof(line))) {
+ if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3)
+ continue;
+
+ if (reg < 0x49 && val <= 0xffffffff && channel_id <= 2)
+ snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
+ }
+}
+
+static int snd_emu10k1x_proc_init(struct emu10k1x *emu)
+{
+ struct snd_info_entry *entry;
+
+ if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
+ snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read);
+ entry->c.text.write = snd_emu10k1x_proc_reg_write;
+ entry->mode |= S_IWUSR;
+ entry->private_data = emu;
+ }
+
+ return 0;
+}
+
+#define snd_emu10k1x_shared_spdif_info snd_ctl_boolean_mono_info
+
+static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
+
+ return 0;
+}
+
+static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
+ unsigned int val;
+ int change = 0;
+
+ val = ucontrol->value.integer.value[0] ;
+
+ if (val) {
+ // enable spdif output
+ snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
+ snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
+ snd_emu10k1x_gpio_write(emu, 0x1000);
+ } else {
+ // disable spdif output
+ snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
+ snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
+ snd_emu10k1x_gpio_write(emu, 0x1080);
+ }
+ return change;
+}
+
+static struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Analog/Digital Output Jack",
+ .info = snd_emu10k1x_shared_spdif_info,
+ .get = snd_emu10k1x_shared_spdif_get,
+ .put = snd_emu10k1x_shared_spdif_put
+};
+
+static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+ uinfo->count = 1;
+ return 0;
+}
+
+static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+
+ ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
+ ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
+ ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
+ ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
+ return 0;
+}
+
+static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.iec958.status[0] = 0xff;
+ ucontrol->value.iec958.status[1] = 0xff;
+ ucontrol->value.iec958.status[2] = 0xff;
+ ucontrol->value.iec958.status[3] = 0xff;
+ return 0;
+}
+
+static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+ int change;
+ unsigned int val;
+
+ val = (ucontrol->value.iec958.status[0] << 0) |
+ (ucontrol->value.iec958.status[1] << 8) |
+ (ucontrol->value.iec958.status[2] << 16) |
+ (ucontrol->value.iec958.status[3] << 24);
+ change = val != emu->spdif_bits[idx];
+ if (change) {
+ snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
+ emu->spdif_bits[idx] = val;
+ }
+ return change;
+}
+
+static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
+{
+ .access = SNDRV_CTL_ELEM_ACCESS_READ,
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
+ .count = 3,
+ .info = snd_emu10k1x_spdif_info,
+ .get = snd_emu10k1x_spdif_get_mask
+};
+
+static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+ .count = 3,
+ .info = snd_emu10k1x_spdif_info,
+ .get = snd_emu10k1x_spdif_get,
+ .put = snd_emu10k1x_spdif_put
+};
+
+static int snd_emu10k1x_mixer(struct emu10k1x *emu)
+{
+ int err;
+ struct snd_kcontrol *kctl;
+ struct snd_card *card = emu->card;
+
+ if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
+ return -ENOMEM;
+ if ((err = snd_ctl_add(card, kctl)))
+ return err;
+ if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
+ return -ENOMEM;
+ if ((err = snd_ctl_add(card, kctl)))
+ return err;
+ if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
+ return -ENOMEM;
+ if ((err = snd_ctl_add(card, kctl)))
+ return err;
+
+ return 0;
+}
+
+#define EMU10K1X_MIDI_MODE_INPUT (1<<0)
+#define EMU10K1X_MIDI_MODE_OUTPUT (1<<1)
+
+static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
+{
+ return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
+}
+
+static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
+{
+ snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
+}
+
+#define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0)
+#define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1)
+#define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0)
+#define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1)
+
+#define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80))
+#define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40))
+
+#define MPU401_RESET 0xff
+#define MPU401_ENTER_UART 0x3f
+#define MPU401_ACK 0xfe
+
+static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
+{
+ int timeout = 100000;
+ for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
+ mpu401_read_data(emu, mpu);
+#ifdef CONFIG_SND_DEBUG
+ if (timeout <= 0)
+ dev_err(emu->card->dev,
+ "cmd: clear rx timeout (status = 0x%x)\n",
+ mpu401_read_stat(emu, mpu));
+#endif
+}
+
+/*
+
+ */
+
+static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
+ struct emu10k1x_midi *midi, unsigned int status)
+{
+ unsigned char byte;
+
+ if (midi->rmidi == NULL) {
+ snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
+ return;
+ }
+
+ spin_lock(&midi->input_lock);
+ if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
+ mpu401_clear_rx(emu, midi);
+ } else {
+ byte = mpu401_read_data(emu, midi);
+ if (midi->substream_input)
+ snd_rawmidi_receive(midi->substream_input, &byte, 1);
+ }
+ }
+ spin_unlock(&midi->input_lock);
+
+ spin_lock(&midi->output_lock);
+ if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
+ if (midi->substream_output &&
+ snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
+ mpu401_write_data(emu, midi, byte);
+ } else {
+ snd_emu10k1x_intr_disable(emu, midi->tx_enable);
+ }
+ }
+ spin_unlock(&midi->output_lock);
+}
+
+static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
+{
+ do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
+}
+
+static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
+ struct emu10k1x_midi *midi, unsigned char cmd, int ack)
+{
+ unsigned long flags;
+ int timeout, ok;
+
+ spin_lock_irqsave(&midi->input_lock, flags);
+ mpu401_write_data(emu, midi, 0x00);
+ /* mpu401_clear_rx(emu, midi); */
+
+ mpu401_write_cmd(emu, midi, cmd);
+ if (ack) {
+ ok = 0;
+ timeout = 10000;
+ while (!ok && timeout-- > 0) {
+ if (mpu401_input_avail(emu, midi)) {
+ if (mpu401_read_data(emu, midi) == MPU401_ACK)
+ ok = 1;
+ }
+ }
+ if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
+ ok = 1;
+ } else {
+ ok = 1;
+ }
+ spin_unlock_irqrestore(&midi->input_lock, flags);
+ if (!ok) {
+ dev_err(emu->card->dev,
+ "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
+ cmd, emu->port,
+ mpu401_read_stat(emu, midi),
+ mpu401_read_data(emu, midi));
+ return 1;
+ }
+ return 0;
+}
+
+static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ unsigned long flags;
+
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return -ENXIO;
+ spin_lock_irqsave(&midi->open_lock, flags);
+ midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
+ midi->substream_input = substream;
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
+ goto error_out;
+ if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
+ goto error_out;
+ } else {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ }
+ return 0;
+
+error_out:
+ return -EIO;
+}
+
+static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ unsigned long flags;
+
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return -ENXIO;
+ spin_lock_irqsave(&midi->open_lock, flags);
+ midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
+ midi->substream_output = substream;
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
+ goto error_out;
+ if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
+ goto error_out;
+ } else {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ }
+ return 0;
+
+error_out:
+ return -EIO;
+}
+
+static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ unsigned long flags;
+ int err = 0;
+
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return -ENXIO;
+ spin_lock_irqsave(&midi->open_lock, flags);
+ snd_emu10k1x_intr_disable(emu, midi->rx_enable);
+ midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
+ midi->substream_input = NULL;
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
+ } else {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ }
+ return err;
+}
+
+static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ unsigned long flags;
+ int err = 0;
+
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return -ENXIO;
+ spin_lock_irqsave(&midi->open_lock, flags);
+ snd_emu10k1x_intr_disable(emu, midi->tx_enable);
+ midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
+ midi->substream_output = NULL;
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
+ } else {
+ spin_unlock_irqrestore(&midi->open_lock, flags);
+ }
+ return err;
+}
+
+static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return;
+
+ if (up)
+ snd_emu10k1x_intr_enable(emu, midi->rx_enable);
+ else
+ snd_emu10k1x_intr_disable(emu, midi->rx_enable);
+}
+
+static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
+{
+ struct emu10k1x *emu;
+ struct emu10k1x_midi *midi = substream->rmidi->private_data;
+ unsigned long flags;
+
+ emu = midi->emu;
+ if (snd_BUG_ON(!emu))
+ return;
+
+ if (up) {
+ int max = 4;
+ unsigned char byte;
+
+ /* try to send some amount of bytes here before interrupts */
+ spin_lock_irqsave(&midi->output_lock, flags);
+ while (max > 0) {
+ if (mpu401_output_ready(emu, midi)) {
+ if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
+ snd_rawmidi_transmit(substream, &byte, 1) != 1) {
+ /* no more data */
+ spin_unlock_irqrestore(&midi->output_lock, flags);
+ return;
+ }
+ mpu401_write_data(emu, midi, byte);
+ max--;
+ } else {
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&midi->output_lock, flags);
+ snd_emu10k1x_intr_enable(emu, midi->tx_enable);
+ } else {
+ snd_emu10k1x_intr_disable(emu, midi->tx_enable);
+ }
+}
+
+/*
+
+ */
+
+static struct snd_rawmidi_ops snd_emu10k1x_midi_output =
+{
+ .open = snd_emu10k1x_midi_output_open,
+ .close = snd_emu10k1x_midi_output_close,
+ .trigger = snd_emu10k1x_midi_output_trigger,
+};
+
+static struct snd_rawmidi_ops snd_emu10k1x_midi_input =
+{
+ .open = snd_emu10k1x_midi_input_open,
+ .close = snd_emu10k1x_midi_input_close,
+ .trigger = snd_emu10k1x_midi_input_trigger,
+};
+
+static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
+{
+ struct emu10k1x_midi *midi = rmidi->private_data;
+ midi->interrupt = NULL;
+ midi->rmidi = NULL;
+}
+
+static int emu10k1x_midi_init(struct emu10k1x *emu,
+ struct emu10k1x_midi *midi, int device,
+ char *name)
+{
+ struct snd_rawmidi *rmidi;
+ int err;
+
+ if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
+ return err;
+ midi->emu = emu;
+ spin_lock_init(&midi->open_lock);
+ spin_lock_init(&midi->input_lock);
+ spin_lock_init(&midi->output_lock);
+ strcpy(rmidi->name, name);
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
+ snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
+ rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
+ SNDRV_RAWMIDI_INFO_INPUT |
+ SNDRV_RAWMIDI_INFO_DUPLEX;
+ rmidi->private_data = midi;
+ rmidi->private_free = snd_emu10k1x_midi_free;
+ midi->rmidi = rmidi;
+ return 0;
+}
+
+static int snd_emu10k1x_midi(struct emu10k1x *emu)
+{
+ struct emu10k1x_midi *midi = &emu->midi;
+ int err;
+
+ if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
+ return err;
+
+ midi->tx_enable = INTE_MIDITXENABLE;
+ midi->rx_enable = INTE_MIDIRXENABLE;
+ midi->port = MUDATA;
+ midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
+ midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
+ midi->interrupt = snd_emu10k1x_midi_interrupt;
+ return 0;
+}
+
+static int snd_emu10k1x_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ struct snd_card *card;
+ struct emu10k1x *chip;
+ int err;
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+ 0, &card);
+ if (err < 0)
+ return err;
+
+ if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_emu10k1x_pcm(chip, 0)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if ((err = snd_emu10k1x_pcm(chip, 1)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if ((err = snd_emu10k1x_pcm(chip, 2)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_emu10k1x_ac97(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_emu10k1x_mixer(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_emu10k1x_midi(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ snd_emu10k1x_proc_init(chip);
+
+ strcpy(card->driver, "EMU10K1X");
+ strcpy(card->shortname, "Dell Sound Blaster Live!");
+ sprintf(card->longname, "%s at 0x%lx irq %i",
+ card->shortname, chip->port, chip->irq);
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ pci_set_drvdata(pci, card);
+ dev++;
+ return 0;
+}
+
+static void snd_emu10k1x_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+}
+
+// PCI IDs
+static const struct pci_device_id snd_emu10k1x_ids[] = {
+ { PCI_VDEVICE(CREATIVE, 0x0006), 0 }, /* Dell OEM version (EMU10K1) */
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
+
+// pci_driver definition
+static struct pci_driver emu10k1x_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_emu10k1x_ids,
+ .probe = snd_emu10k1x_probe,
+ .remove = snd_emu10k1x_remove,
+};
+
+module_pci_driver(emu10k1x_driver);
Code Review / kvmfornfv.git / blobdiff