[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/sound/pci/als4000.c b/ap/os/linux/linux-3.4.x/sound/pci/als4000.c
new file mode 100644
index 0000000..3269b80
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/sound/pci/als4000.c
@@ -0,0 +1,1061 @@
+/*
+ * card-als4000.c - driver for Avance Logic ALS4000 based soundcards.
+ * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>,
+ * Jaroslav Kysela <perex@perex.cz>
+ * Copyright (C) 2002, 2008 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
+ *
+ * Framework borrowed from Massimo Piccioni's card-als100.c.
+ *
+ *
+ * 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
+ *
+ * NOTES
+ *
+ * Since Avance does not provide any meaningful documentation, and I
+ * bought an ALS4000 based soundcard, I was forced to base this driver
+ * on reverse engineering.
+ *
+ * Note: this is no longer true (thank you!):
+ * pretty verbose chip docu (ALS4000a.PDF) can be found on the ALSA web site.
+ * Page numbers stated anywhere below with the "SPECS_PAGE:" tag
+ * refer to: ALS4000a.PDF specs Ver 1.0, May 28th, 1998.
+ *
+ * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an
+ * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport
+ * interface. These subsystems can be mapped into ISA io-port space,
+ * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ
+ * services to the subsystems.
+ *
+ * While ALS4000 is very similar to a SoundBlaster, the differences in
+ * DMA and capturing require more changes to the SoundBlaster than
+ * desirable, so I made this separate driver.
+ *
+ * The ALS4000 can do real full duplex playback/capture.
+ *
+ * FMDAC:
+ * - 0x4f -> port 0x14
+ * - port 0x15 |= 1
+ *
+ * Enable/disable 3D sound:
+ * - 0x50 -> port 0x14
+ * - change bit 6 (0x40) of port 0x15
+ *
+ * Set QSound:
+ * - 0xdb -> port 0x14
+ * - set port 0x15:
+ * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0)
+ *
+ * Set KSound:
+ * - value -> some port 0x0c0d
+ *
+ * ToDo:
+ * - by default, don't enable legacy game and use PCI game I/O
+ * - power management? (card can do voice wakeup according to datasheet!!)
+ */
+
+#include <asm/io.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/gameport.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/rawmidi.h>
+#include <sound/mpu401.h>
+#include <sound/opl3.h>
+#include <sound/sb.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>, Andreas Mohr");
+MODULE_DESCRIPTION("Avance Logic ALS4000");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}");
+
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+#define SUPPORT_JOYSTICK 1
+#endif
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
+#ifdef SUPPORT_JOYSTICK
+static int joystick_port[SNDRV_CARDS];
+#endif
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard.");
+#ifdef SUPPORT_JOYSTICK
+module_param_array(joystick_port, int, NULL, 0444);
+MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)");
+#endif
+
+struct snd_card_als4000 {
+ /* most frequent access first */
+ unsigned long iobase;
+ struct pci_dev *pci;
+ struct snd_sb *chip;
+#ifdef SUPPORT_JOYSTICK
+ struct gameport *gameport;
+#endif
+};
+
+static DEFINE_PCI_DEVICE_TABLE(snd_als4000_ids) = {
+ { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
+
+enum als4k_iobase_t {
+ /* IOx: B == Byte, W = Word, D = DWord; SPECS_PAGE: 37 */
+ ALS4K_IOD_00_AC97_ACCESS = 0x00,
+ ALS4K_IOW_04_AC97_READ = 0x04,
+ ALS4K_IOB_06_AC97_STATUS = 0x06,
+ ALS4K_IOB_07_IRQSTATUS = 0x07,
+ ALS4K_IOD_08_GCR_DATA = 0x08,
+ ALS4K_IOB_0C_GCR_INDEX = 0x0c,
+ ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU = 0x0e,
+ ALS4K_IOB_10_ADLIB_ADDR0 = 0x10,
+ ALS4K_IOB_11_ADLIB_ADDR1 = 0x11,
+ ALS4K_IOB_12_ADLIB_ADDR2 = 0x12,
+ ALS4K_IOB_13_ADLIB_ADDR3 = 0x13,
+ ALS4K_IOB_14_MIXER_INDEX = 0x14,
+ ALS4K_IOB_15_MIXER_DATA = 0x15,
+ ALS4K_IOB_16_ESP_RESET = 0x16,
+ ALS4K_IOB_16_ACK_FOR_CR1E = 0x16, /* 2nd function */
+ ALS4K_IOB_18_OPL_ADDR0 = 0x18,
+ ALS4K_IOB_19_OPL_ADDR1 = 0x19,
+ ALS4K_IOB_1A_ESP_RD_DATA = 0x1a,
+ ALS4K_IOB_1C_ESP_CMD_DATA = 0x1c,
+ ALS4K_IOB_1C_ESP_WR_STATUS = 0x1c, /* 2nd function */
+ ALS4K_IOB_1E_ESP_RD_STATUS8 = 0x1e,
+ ALS4K_IOB_1F_ESP_RD_STATUS16 = 0x1f,
+ ALS4K_IOB_20_ESP_GAMEPORT_200 = 0x20,
+ ALS4K_IOB_21_ESP_GAMEPORT_201 = 0x21,
+ ALS4K_IOB_30_MIDI_DATA = 0x30,
+ ALS4K_IOB_31_MIDI_STATUS = 0x31,
+ ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */
+};
+
+enum als4k_iobase_0e_t {
+ ALS4K_IOB_0E_MPU_IRQ = 0x10,
+ ALS4K_IOB_0E_CR1E_IRQ = 0x40,
+ ALS4K_IOB_0E_SB_DMA_IRQ = 0x80,
+};
+
+enum als4k_gcr_t { /* all registers 32bit wide; SPECS_PAGE: 38 to 42 */
+ ALS4K_GCR8C_MISC_CTRL = 0x8c,
+ ALS4K_GCR90_TEST_MODE_REG = 0x90,
+ ALS4K_GCR91_DMA0_ADDR = 0x91,
+ ALS4K_GCR92_DMA0_MODE_COUNT = 0x92,
+ ALS4K_GCR93_DMA1_ADDR = 0x93,
+ ALS4K_GCR94_DMA1_MODE_COUNT = 0x94,
+ ALS4K_GCR95_DMA3_ADDR = 0x95,
+ ALS4K_GCR96_DMA3_MODE_COUNT = 0x96,
+ ALS4K_GCR99_DMA_EMULATION_CTRL = 0x99,
+ ALS4K_GCRA0_FIFO1_CURRENT_ADDR = 0xa0,
+ ALS4K_GCRA1_FIFO1_STATUS_BYTECOUNT = 0xa1,
+ ALS4K_GCRA2_FIFO2_PCIADDR = 0xa2,
+ ALS4K_GCRA3_FIFO2_COUNT = 0xa3,
+ ALS4K_GCRA4_FIFO2_CURRENT_ADDR = 0xa4,
+ ALS4K_GCRA5_FIFO1_STATUS_BYTECOUNT = 0xa5,
+ ALS4K_GCRA6_PM_CTRL = 0xa6,
+ ALS4K_GCRA7_PCI_ACCESS_STORAGE = 0xa7,
+ ALS4K_GCRA8_LEGACY_CFG1 = 0xa8,
+ ALS4K_GCRA9_LEGACY_CFG2 = 0xa9,
+ ALS4K_GCRFF_DUMMY_SCRATCH = 0xff,
+};
+
+enum als4k_gcr8c_t {
+ ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE = 0x8000,
+ ALS4K_GCR8C_CHIP_REV_MASK = 0xf0000
+};
+
+static inline void snd_als4k_iobase_writeb(unsigned long iobase,
+ enum als4k_iobase_t reg,
+ u8 val)
+{
+ outb(val, iobase + reg);
+}
+
+static inline void snd_als4k_iobase_writel(unsigned long iobase,
+ enum als4k_iobase_t reg,
+ u32 val)
+{
+ outl(val, iobase + reg);
+}
+
+static inline u8 snd_als4k_iobase_readb(unsigned long iobase,
+ enum als4k_iobase_t reg)
+{
+ return inb(iobase + reg);
+}
+
+static inline u32 snd_als4k_iobase_readl(unsigned long iobase,
+ enum als4k_iobase_t reg)
+{
+ return inl(iobase + reg);
+}
+
+static inline void snd_als4k_gcr_write_addr(unsigned long iobase,
+ enum als4k_gcr_t reg,
+ u32 val)
+{
+ snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
+ snd_als4k_iobase_writel(iobase, ALS4K_IOD_08_GCR_DATA, val);
+}
+
+static inline void snd_als4k_gcr_write(struct snd_sb *sb,
+ enum als4k_gcr_t reg,
+ u32 val)
+{
+ snd_als4k_gcr_write_addr(sb->alt_port, reg, val);
+}
+
+static inline u32 snd_als4k_gcr_read_addr(unsigned long iobase,
+ enum als4k_gcr_t reg)
+{
+ /* SPECS_PAGE: 37/38 */
+ snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
+ return snd_als4k_iobase_readl(iobase, ALS4K_IOD_08_GCR_DATA);
+}
+
+static inline u32 snd_als4k_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg)
+{
+ return snd_als4k_gcr_read_addr(sb->alt_port, reg);
+}
+
+enum als4k_cr_t { /* all registers 8bit wide; SPECS_PAGE: 20 to 23 */
+ ALS4K_CR0_SB_CONFIG = 0x00,
+ ALS4K_CR2_MISC_CONTROL = 0x02,
+ ALS4K_CR3_CONFIGURATION = 0x03,
+ ALS4K_CR17_FIFO_STATUS = 0x17,
+ ALS4K_CR18_ESP_MAJOR_VERSION = 0x18,
+ ALS4K_CR19_ESP_MINOR_VERSION = 0x19,
+ ALS4K_CR1A_MPU401_UART_MODE_CONTROL = 0x1a,
+ ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO = 0x1c,
+ ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI = 0x1d,
+ ALS4K_CR1E_FIFO2_CONTROL = 0x1e, /* secondary PCM FIFO (recording) */
+ ALS4K_CR3A_MISC_CONTROL = 0x3a,
+ ALS4K_CR3B_CRC32_BYTE0 = 0x3b, /* for testing, activate via CR3A */
+ ALS4K_CR3C_CRC32_BYTE1 = 0x3c,
+ ALS4K_CR3D_CRC32_BYTE2 = 0x3d,
+ ALS4K_CR3E_CRC32_BYTE3 = 0x3e,
+};
+
+enum als4k_cr0_t {
+ ALS4K_CR0_DMA_CONTIN_MODE_CTRL = 0x02, /* IRQ/FIFO controlled for 0/1 */
+ ALS4K_CR0_DMA_90H_MODE_CTRL = 0x04, /* IRQ/FIFO controlled for 0/1 */
+ ALS4K_CR0_MX80_81_REG_WRITE_ENABLE = 0x80,
+};
+
+static inline void snd_als4_cr_write(struct snd_sb *chip,
+ enum als4k_cr_t reg,
+ u8 data)
+{
+ /* Control Register is reg | 0xc0 (bit 7, 6 set) on sbmixer_index
+ * NOTE: assumes chip->mixer_lock to be locked externally already!
+ * SPECS_PAGE: 6 */
+ snd_sbmixer_write(chip, reg | 0xc0, data);
+}
+
+static inline u8 snd_als4_cr_read(struct snd_sb *chip,
+ enum als4k_cr_t reg)
+{
+ /* NOTE: assumes chip->mixer_lock to be locked externally already! */
+ return snd_sbmixer_read(chip, reg | 0xc0);
+}
+
+
+
+static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
+{
+ if (!(chip->mode & SB_RATE_LOCK)) {
+ snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
+ snd_sbdsp_command(chip, rate>>8);
+ snd_sbdsp_command(chip, rate);
+ }
+}
+
+static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
+ dma_addr_t addr, unsigned size)
+{
+ /* SPECS_PAGE: 40 */
+ snd_als4k_gcr_write(chip, ALS4K_GCRA2_FIFO2_PCIADDR, addr);
+ snd_als4k_gcr_write(chip, ALS4K_GCRA3_FIFO2_COUNT, (size-1));
+}
+
+static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
+ dma_addr_t addr,
+ unsigned size)
+{
+ /* SPECS_PAGE: 38 */
+ snd_als4k_gcr_write(chip, ALS4K_GCR91_DMA0_ADDR, addr);
+ snd_als4k_gcr_write(chip, ALS4K_GCR92_DMA0_MODE_COUNT,
+ (size-1)|0x180000);
+}
+
+#define ALS4000_FORMAT_SIGNED (1<<0)
+#define ALS4000_FORMAT_16BIT (1<<1)
+#define ALS4000_FORMAT_STEREO (1<<2)
+
+static int snd_als4000_get_format(struct snd_pcm_runtime *runtime)
+{
+ int result;
+
+ result = 0;
+ if (snd_pcm_format_signed(runtime->format))
+ result |= ALS4000_FORMAT_SIGNED;
+ if (snd_pcm_format_physical_width(runtime->format) == 16)
+ result |= ALS4000_FORMAT_16BIT;
+ if (runtime->channels > 1)
+ result |= ALS4000_FORMAT_STEREO;
+ return result;
+}
+
+/* structure for setting up playback */
+static const struct {
+ unsigned char dsp_cmd, dma_on, dma_off, format;
+} playback_cmd_vals[]={
+/* ALS4000_FORMAT_U8_MONO */
+{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO },
+/* ALS4000_FORMAT_S8_MONO */
+{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO },
+/* ALS4000_FORMAT_U16L_MONO */
+{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO },
+/* ALS4000_FORMAT_S16L_MONO */
+{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO },
+/* ALS4000_FORMAT_U8_STEREO */
+{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO },
+/* ALS4000_FORMAT_S8_STEREO */
+{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO },
+/* ALS4000_FORMAT_U16L_STEREO */
+{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO },
+/* ALS4000_FORMAT_S16L_STEREO */
+{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO },
+};
+#define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format])
+
+/* structure for setting up capture */
+enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 };
+static const unsigned char capture_cmd_vals[]=
+{
+CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */
+CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */
+CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */
+CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */
+CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */
+CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */
+CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */
+CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */
+};
+#define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format])
+
+static int snd_als4000_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+}
+
+static int snd_als4000_hw_free(struct snd_pcm_substream *substream)
+{
+ snd_pcm_lib_free_pages(substream);
+ return 0;
+}
+
+static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned long size;
+ unsigned count;
+
+ chip->capture_format = snd_als4000_get_format(runtime);
+
+ size = snd_pcm_lib_buffer_bytes(substream);
+ count = snd_pcm_lib_period_bytes(substream);
+
+ if (chip->capture_format & ALS4000_FORMAT_16BIT)
+ count >>= 1;
+ count--;
+
+ spin_lock_irq(&chip->reg_lock);
+ snd_als4000_set_rate(chip, runtime->rate);
+ snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
+ spin_unlock_irq(&chip->reg_lock);
+ spin_lock_irq(&chip->mixer_lock);
+ snd_als4_cr_write(chip, ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO, count & 0xff);
+ snd_als4_cr_write(chip, ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI, count >> 8);
+ spin_unlock_irq(&chip->mixer_lock);
+ return 0;
+}
+
+static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned long size;
+ unsigned count;
+
+ chip->playback_format = snd_als4000_get_format(runtime);
+
+ size = snd_pcm_lib_buffer_bytes(substream);
+ count = snd_pcm_lib_period_bytes(substream);
+
+ if (chip->playback_format & ALS4000_FORMAT_16BIT)
+ count >>= 1;
+ count--;
+
+ /* FIXME: from second playback on, there's a lot more clicks and pops
+ * involved here than on first playback. Fiddling with
+ * tons of different settings didn't help (DMA, speaker on/off,
+ * reordering, ...). Something seems to get enabled on playback
+ * that I haven't found out how to disable again, which then causes
+ * the switching pops to reach the speakers the next time here. */
+ spin_lock_irq(&chip->reg_lock);
+ snd_als4000_set_rate(chip, runtime->rate);
+ snd_als4000_set_playback_dma(chip, runtime->dma_addr, size);
+
+ /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */
+ /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
+ snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
+ snd_sbdsp_command(chip, playback_cmd(chip).format);
+ snd_sbdsp_command(chip, count & 0xff);
+ snd_sbdsp_command(chip, count >> 8);
+ snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
+ spin_unlock_irq(&chip->reg_lock);
+
+ return 0;
+}
+
+static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ int result = 0;
+
+ /* FIXME race condition in here!!!
+ chip->mode non-atomic update gets consistently protected
+ by reg_lock always, _except_ for this place!!
+ Probably need to take reg_lock as outer (or inner??) lock, too.
+ (or serialize both lock operations? probably not, though... - racy?)
+ */
+ spin_lock(&chip->mixer_lock);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ chip->mode |= SB_RATE_LOCK_CAPTURE;
+ snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
+ capture_cmd(chip));
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ chip->mode &= ~SB_RATE_LOCK_CAPTURE;
+ snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
+ capture_cmd(chip));
+ break;
+ default:
+ result = -EINVAL;
+ break;
+ }
+ spin_unlock(&chip->mixer_lock);
+ return result;
+}
+
+static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ int result = 0;
+
+ spin_lock(&chip->reg_lock);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ chip->mode |= SB_RATE_LOCK_PLAYBACK;
+ snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
+ chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
+ break;
+ default:
+ result = -EINVAL;
+ break;
+ }
+ spin_unlock(&chip->reg_lock);
+ return result;
+}
+
+static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ unsigned int result;
+
+ spin_lock(&chip->reg_lock);
+ result = snd_als4k_gcr_read(chip, ALS4K_GCRA4_FIFO2_CURRENT_ADDR);
+ spin_unlock(&chip->reg_lock);
+ result &= 0xffff;
+ return bytes_to_frames( substream->runtime, result );
+}
+
+static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ unsigned result;
+
+ spin_lock(&chip->reg_lock);
+ result = snd_als4k_gcr_read(chip, ALS4K_GCRA0_FIFO1_CURRENT_ADDR);
+ spin_unlock(&chip->reg_lock);
+ result &= 0xffff;
+ return bytes_to_frames( substream->runtime, result );
+}
+
+/* FIXME: this IRQ routine doesn't really support IRQ sharing (we always
+ * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
+ * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
+ * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
+ * register (alt_port + ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU). Probably something
+ * could be optimized here to query/write one register only...
+ * And even if both registers need to be queried, then there's still the
+ * question of whether it's actually correct to ACK PCI IRQ before reading
+ * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
+ * SB IRQ status.
+ * (hmm, SPECS_PAGE: 38 mentions it the other way around!)
+ * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
+ * */
+static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
+{
+ struct snd_sb *chip = dev_id;
+ unsigned pci_irqstatus;
+ unsigned sb_irqstatus;
+
+ /* find out which bit of the ALS4000 PCI block produced the interrupt,
+ SPECS_PAGE: 38, 5 */
+ pci_irqstatus = snd_als4k_iobase_readb(chip->alt_port,
+ ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU);
+ if ((pci_irqstatus & ALS4K_IOB_0E_SB_DMA_IRQ)
+ && (chip->playback_substream)) /* playback */
+ snd_pcm_period_elapsed(chip->playback_substream);
+ if ((pci_irqstatus & ALS4K_IOB_0E_CR1E_IRQ)
+ && (chip->capture_substream)) /* capturing */
+ snd_pcm_period_elapsed(chip->capture_substream);
+ if ((pci_irqstatus & ALS4K_IOB_0E_MPU_IRQ)
+ && (chip->rmidi)) /* MPU401 interrupt */
+ snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
+ /* ACK the PCI block IRQ */
+ snd_als4k_iobase_writeb(chip->alt_port,
+ ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU, pci_irqstatus);
+
+ spin_lock(&chip->mixer_lock);
+ /* SPECS_PAGE: 20 */
+ sb_irqstatus = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
+ spin_unlock(&chip->mixer_lock);
+
+ if (sb_irqstatus & SB_IRQTYPE_8BIT)
+ snd_sb_ack_8bit(chip);
+ if (sb_irqstatus & SB_IRQTYPE_16BIT)
+ snd_sb_ack_16bit(chip);
+ if (sb_irqstatus & SB_IRQTYPE_MPUIN)
+ inb(chip->mpu_port);
+ if (sb_irqstatus & ALS4K_IRQTYPE_CR1E_DMA)
+ snd_als4k_iobase_readb(chip->alt_port,
+ ALS4K_IOB_16_ACK_FOR_CR1E);
+
+ /* printk(KERN_INFO "als4000: irq 0x%04x 0x%04x\n",
+ pci_irqstatus, sb_irqstatus); */
+
+ /* only ack the things we actually handled above */
+ return IRQ_RETVAL(
+ (pci_irqstatus & (ALS4K_IOB_0E_SB_DMA_IRQ|ALS4K_IOB_0E_CR1E_IRQ|
+ ALS4K_IOB_0E_MPU_IRQ))
+ || (sb_irqstatus & (SB_IRQTYPE_8BIT|SB_IRQTYPE_16BIT|
+ SB_IRQTYPE_MPUIN|ALS4K_IRQTYPE_CR1E_DMA))
+ );
+}
+
+/*****************************************************************/
+
+static struct snd_pcm_hardware snd_als4000_playback =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
+ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
+ .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 4000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = 65536,
+ .period_bytes_min = 64,
+ .period_bytes_max = 65536,
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0
+};
+
+static struct snd_pcm_hardware snd_als4000_capture =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
+ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
+ .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 4000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = 65536,
+ .period_bytes_min = 64,
+ .period_bytes_max = 65536,
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0
+};
+
+/*****************************************************************/
+
+static int snd_als4000_playback_open(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ chip->playback_substream = substream;
+ runtime->hw = snd_als4000_playback;
+ return 0;
+}
+
+static int snd_als4000_playback_close(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+
+ chip->playback_substream = NULL;
+ snd_pcm_lib_free_pages(substream);
+ return 0;
+}
+
+static int snd_als4000_capture_open(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ chip->capture_substream = substream;
+ runtime->hw = snd_als4000_capture;
+ return 0;
+}
+
+static int snd_als4000_capture_close(struct snd_pcm_substream *substream)
+{
+ struct snd_sb *chip = snd_pcm_substream_chip(substream);
+
+ chip->capture_substream = NULL;
+ snd_pcm_lib_free_pages(substream);
+ return 0;
+}
+
+/******************************************************************/
+
+static struct snd_pcm_ops snd_als4000_playback_ops = {
+ .open = snd_als4000_playback_open,
+ .close = snd_als4000_playback_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_als4000_hw_params,
+ .hw_free = snd_als4000_hw_free,
+ .prepare = snd_als4000_playback_prepare,
+ .trigger = snd_als4000_playback_trigger,
+ .pointer = snd_als4000_playback_pointer
+};
+
+static struct snd_pcm_ops snd_als4000_capture_ops = {
+ .open = snd_als4000_capture_open,
+ .close = snd_als4000_capture_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_als4000_hw_params,
+ .hw_free = snd_als4000_hw_free,
+ .prepare = snd_als4000_capture_prepare,
+ .trigger = snd_als4000_capture_trigger,
+ .pointer = snd_als4000_capture_pointer
+};
+
+static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm);
+ if (err < 0)
+ return err;
+ pcm->private_data = chip;
+ pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
+ 64*1024, 64*1024);
+
+ chip->pcm = pcm;
+
+ return 0;
+}
+
+/******************************************************************/
+
+static void snd_als4000_set_addr(unsigned long iobase,
+ unsigned int sb_io,
+ unsigned int mpu_io,
+ unsigned int opl_io,
+ unsigned int game_io)
+{
+ u32 cfg1 = 0;
+ u32 cfg2 = 0;
+
+ if (mpu_io > 0)
+ cfg2 |= (mpu_io | 1) << 16;
+ if (sb_io > 0)
+ cfg2 |= (sb_io | 1);
+ if (game_io > 0)
+ cfg1 |= (game_io | 1) << 16;
+ if (opl_io > 0)
+ cfg1 |= (opl_io | 1);
+ snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA8_LEGACY_CFG1, cfg1);
+ snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA9_LEGACY_CFG2, cfg2);
+}
+
+static void snd_als4000_configure(struct snd_sb *chip)
+{
+ u8 tmp;
+ int i;
+
+ /* do some more configuration */
+ spin_lock_irq(&chip->mixer_lock);
+ tmp = snd_als4_cr_read(chip, ALS4K_CR0_SB_CONFIG);
+ snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
+ tmp|ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
+ /* always select DMA channel 0, since we do not actually use DMA
+ * SPECS_PAGE: 19/20 */
+ snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
+ snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
+ tmp & ~ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
+ spin_unlock_irq(&chip->mixer_lock);
+
+ spin_lock_irq(&chip->reg_lock);
+ /* enable interrupts */
+ snd_als4k_gcr_write(chip, ALS4K_GCR8C_MISC_CTRL,
+ ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE);
+
+ /* SPECS_PAGE: 39 */
+ for (i = ALS4K_GCR91_DMA0_ADDR; i <= ALS4K_GCR96_DMA3_MODE_COUNT; ++i)
+ snd_als4k_gcr_write(chip, i, 0);
+ /* enable burst mode to prevent dropouts during high PCI bus usage */
+ snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL,
+ (snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) & ~0x07) | 0x04);
+ spin_unlock_irq(&chip->reg_lock);
+}
+
+#ifdef SUPPORT_JOYSTICK
+static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
+{
+ struct gameport *gp;
+ struct resource *r;
+ int io_port;
+
+ if (joystick_port[dev] == 0)
+ return -ENODEV;
+
+ if (joystick_port[dev] == 1) { /* auto-detect */
+ for (io_port = 0x200; io_port <= 0x218; io_port += 8) {
+ r = request_region(io_port, 8, "ALS4000 gameport");
+ if (r)
+ break;
+ }
+ } else {
+ io_port = joystick_port[dev];
+ r = request_region(io_port, 8, "ALS4000 gameport");
+ }
+
+ if (!r) {
+ printk(KERN_WARNING "als4000: cannot reserve joystick ports\n");
+ return -EBUSY;
+ }
+
+ acard->gameport = gp = gameport_allocate_port();
+ if (!gp) {
+ printk(KERN_ERR "als4000: cannot allocate memory for gameport\n");
+ release_and_free_resource(r);
+ return -ENOMEM;
+ }
+
+ gameport_set_name(gp, "ALS4000 Gameport");
+ gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci));
+ gameport_set_dev_parent(gp, &acard->pci->dev);
+ gp->io = io_port;
+ gameport_set_port_data(gp, r);
+
+ /* Enable legacy joystick port */
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
+
+ gameport_register_port(acard->gameport);
+
+ return 0;
+}
+
+static void snd_als4000_free_gameport(struct snd_card_als4000 *acard)
+{
+ if (acard->gameport) {
+ struct resource *r = gameport_get_port_data(acard->gameport);
+
+ gameport_unregister_port(acard->gameport);
+ acard->gameport = NULL;
+
+ /* disable joystick */
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
+
+ release_and_free_resource(r);
+ }
+}
+#else
+static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; }
+static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { }
+#endif
+
+static void snd_card_als4000_free( struct snd_card *card )
+{
+ struct snd_card_als4000 *acard = card->private_data;
+
+ /* make sure that interrupts are disabled */
+ snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0);
+ /* free resources */
+ snd_als4000_free_gameport(acard);
+ pci_release_regions(acard->pci);
+ pci_disable_device(acard->pci);
+}
+
+static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ struct snd_card *card;
+ struct snd_card_als4000 *acard;
+ unsigned long iobase;
+ struct snd_sb *chip;
+ struct snd_opl3 *opl3;
+ unsigned short word;
+ int err;
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ /* enable PCI device */
+ if ((err = pci_enable_device(pci)) < 0) {
+ return err;
+ }
+ /* check, if we can restrict PCI DMA transfers to 24 bits */
+ if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+ snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
+ pci_disable_device(pci);
+ return -ENXIO;
+ }
+
+ if ((err = pci_request_regions(pci, "ALS4000")) < 0) {
+ pci_disable_device(pci);
+ return err;
+ }
+ iobase = pci_resource_start(pci, 0);
+
+ pci_read_config_word(pci, PCI_COMMAND, &word);
+ pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
+ pci_set_master(pci);
+
+ err = snd_card_create(index[dev], id[dev], THIS_MODULE,
+ sizeof(*acard) /* private_data: acard */,
+ &card);
+ if (err < 0) {
+ pci_release_regions(pci);
+ pci_disable_device(pci);
+ return err;
+ }
+
+ acard = card->private_data;
+ acard->pci = pci;
+ acard->iobase = iobase;
+ card->private_free = snd_card_als4000_free;
+
+ /* disable all legacy ISA stuff */
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
+
+ if ((err = snd_sbdsp_create(card,
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
+ pci->irq,
+ /* internally registered as IRQF_SHARED in case of ALS4000 SB */
+ snd_als4000_interrupt,
+ -1,
+ -1,
+ SB_HW_ALS4000,
+ &chip)) < 0) {
+ goto out_err;
+ }
+ acard->chip = chip;
+
+ chip->pci = pci;
+ chip->alt_port = iobase;
+ snd_card_set_dev(card, &pci->dev);
+
+ snd_als4000_configure(chip);
+
+ strcpy(card->driver, "ALS4000");
+ strcpy(card->shortname, "Avance Logic ALS4000");
+ sprintf(card->longname, "%s at 0x%lx, irq %i",
+ card->shortname, chip->alt_port, chip->irq);
+
+ if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
+ iobase + ALS4K_IOB_30_MIDI_DATA,
+ MPU401_INFO_INTEGRATED |
+ MPU401_INFO_IRQ_HOOK,
+ -1, &chip->rmidi)) < 0) {
+ printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n",
+ iobase + ALS4K_IOB_30_MIDI_DATA);
+ goto out_err;
+ }
+ /* FIXME: ALS4000 has interesting MPU401 configuration features
+ * at ALS4K_CR1A_MPU401_UART_MODE_CONTROL
+ * (pass-thru / UART switching, fast MIDI clock, etc.),
+ * however there doesn't seem to be an ALSA API for this...
+ * SPECS_PAGE: 21 */
+
+ if ((err = snd_als4000_pcm(chip, 0)) < 0) {
+ goto out_err;
+ }
+ if ((err = snd_sbmixer_new(chip)) < 0) {
+ goto out_err;
+ }
+
+ if (snd_opl3_create(card,
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
+ iobase + ALS4K_IOB_12_ADLIB_ADDR2,
+ OPL3_HW_AUTO, 1, &opl3) < 0) {
+ printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n",
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
+ iobase + ALS4K_IOB_12_ADLIB_ADDR2);
+ } else {
+ if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
+ goto out_err;
+ }
+ }
+
+ snd_als4000_create_gameport(acard, dev);
+
+ if ((err = snd_card_register(card)) < 0) {
+ goto out_err;
+ }
+ pci_set_drvdata(pci, card);
+ dev++;
+ err = 0;
+ goto out;
+
+out_err:
+ snd_card_free(card);
+
+out:
+ return err;
+}
+
+static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+ pci_set_drvdata(pci, NULL);
+}
+
+#ifdef CONFIG_PM
+static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct snd_card_als4000 *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+ snd_pcm_suspend_all(chip->pcm);
+ snd_sbmixer_suspend(chip);
+
+ pci_disable_device(pci);
+ pci_save_state(pci);
+ pci_set_power_state(pci, pci_choose_state(pci, state));
+ return 0;
+}
+
+static int snd_als4000_resume(struct pci_dev *pci)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct snd_card_als4000 *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
+
+ pci_set_power_state(pci, PCI_D0);
+ pci_restore_state(pci);
+ if (pci_enable_device(pci) < 0) {
+ printk(KERN_ERR "als4000: pci_enable_device failed, "
+ "disabling device\n");
+ snd_card_disconnect(card);
+ return -EIO;
+ }
+ pci_set_master(pci);
+
+ snd_als4000_configure(chip);
+ snd_sbdsp_reset(chip);
+ snd_sbmixer_resume(chip);
+
+#ifdef SUPPORT_JOYSTICK
+ if (acard->gameport)
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
+#endif
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+
+static struct pci_driver driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_als4000_ids,
+ .probe = snd_card_als4000_probe,
+ .remove = __devexit_p(snd_card_als4000_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_als4000_suspend,
+ .resume = snd_als4000_resume,
+#endif
+};
+
+static int __init alsa_card_als4000_init(void)
+{
+ return pci_register_driver(&driver);
+}
+
+static void __exit alsa_card_als4000_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_als4000_init)
+module_exit(alsa_card_als4000_exit)