--- /dev/null
+/*
+ * ALSA modem driver for Intel ICH (i8x0) chipsets
+ *
+ * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
+ *
+ * This is modified (by Sasha Khapyorsky <sashak@smlink.com>) version
+ * of ALSA ICH sound driver intel8x0.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
+ *
+ */
+
+#include <sound/driver.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/info.h>
+#include <sound/mpu401.h>
+#define SNDRV_GET_ID
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440 modem");
+MODULE_LICENSE("GPL");
+MODULE_CLASSES("{sound}");
+MODULE_DEVICES("{{Intel,82801AA-ICH},"
+ "{Intel,82901AB-ICH0},"
+ "{Intel,82801BA-ICH2},"
+ "{Intel,82801CA-ICH3},"
+ "{Intel,82801DB-ICH4},"
+ "{Intel,ICH5},"
+ "{Intel,MX440}}");
+
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
+static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
+
+MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
+MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
+MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
+MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
+MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
+MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
+MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
+MODULE_PARM_DESC(enable, "Enable Intel i8x0 modemcard.");
+MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
+MODULE_PARM(ac97_clock, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
+MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
+MODULE_PARM_SYNTAX(ac97_clock, SNDRV_ENABLED ",default:0");
+
+/*
+ * Direct registers
+ */
+
+#ifndef PCI_DEVICE_ID_INTEL_82801_6
+#define PCI_DEVICE_ID_INTEL_82801_6 0x2416
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_82901_6
+#define PCI_DEVICE_ID_INTEL_82901_6 0x2426
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_82801BA_6
+#define PCI_DEVICE_ID_INTEL_82801BA_6 0x2446
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_440MX_6
+#define PCI_DEVICE_ID_INTEL_440MX_6 0x7196
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_ICH3_6
+#define PCI_DEVICE_ID_INTEL_ICH3_6 0x2486
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_ICH4_6
+#define PCI_DEVICE_ID_INTEL_ICH4_6 0x24c6
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_ICH5_6
+#define PCI_DEVICE_ID_INTEL_ICH5_6 0x24d6
+#endif
+#ifndef PCI_DEVICE_ID_SI_7013
+#define PCI_DEVICE_ID_SI_7013 0x7013
+#endif
+#if 0
+#ifndef PCI_DEVICE_ID_NVIDIA_MCP_AUDIO
+#define PCI_DEVICE_ID_NVIDIA_MCP_AUDIO 0x01b1
+#endif
+#ifndef PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO
+#define PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO 0x006a
+#endif
+#ifndef PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO
+#define PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO 0x00da
+#endif
+#endif
+
+enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
+
+#define ICHREG(x) ICH_REG_##x
+
+#define DEFINE_REGSET(name,base) \
+enum { \
+ ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \
+ ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \
+ ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \
+ ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \
+ ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \
+ ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \
+ ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \
+};
+
+/* busmaster blocks */
+DEFINE_REGSET(OFF, 0); /* offset */
+
+/* values for each busmaster block */
+
+/* LVI */
+#define ICH_REG_LVI_MASK 0x1f
+
+/* SR */
+#define ICH_FIFOE 0x10 /* FIFO error */
+#define ICH_BCIS 0x08 /* buffer completion interrupt status */
+#define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */
+#define ICH_CELV 0x02 /* current equals last valid */
+#define ICH_DCH 0x01 /* DMA controller halted */
+
+/* PIV */
+#define ICH_REG_PIV_MASK 0x1f /* mask */
+
+/* CR */
+#define ICH_IOCE 0x10 /* interrupt on completion enable */
+#define ICH_FEIE 0x08 /* fifo error interrupt enable */
+#define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */
+#define ICH_RESETREGS 0x02 /* reset busmaster registers */
+#define ICH_STARTBM 0x01 /* start busmaster operation */
+
+
+/* global block */
+#define ICH_REG_GLOB_CNT 0x3c /* dword - global control */
+#define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */
+#define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */
+#define ICH_PRIE 0x00000010 /* primary resume interrupt enable */
+#define ICH_ACLINK 0x00000008 /* AClink shut off */
+#define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */
+#define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */
+#define ICH_GIE 0x00000001 /* GPI interrupt enable */
+#define ICH_REG_GLOB_STA 0x40 /* dword - global status */
+#define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */
+#define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */
+#define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */
+#define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */
+#define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */
+#define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */
+#define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */
+#define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */
+#define ICH_MD3 0x00020000 /* modem power down semaphore */
+#define ICH_AD3 0x00010000 /* audio power down semaphore */
+#define ICH_RCS 0x00008000 /* read completion status */
+#define ICH_BIT3 0x00004000 /* bit 3 slot 12 */
+#define ICH_BIT2 0x00002000 /* bit 2 slot 12 */
+#define ICH_BIT1 0x00001000 /* bit 1 slot 12 */
+#define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */
+#define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */
+#define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */
+#define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */
+#define ICH_MCINT 0x00000080 /* MIC capture interrupt */
+#define ICH_POINT 0x00000040 /* playback interrupt */
+#define ICH_PIINT 0x00000020 /* capture interrupt */
+#define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */
+#define ICH_MOINT 0x00000004 /* modem playback interrupt */
+#define ICH_MIINT 0x00000002 /* modem capture interrupt */
+#define ICH_GSCI 0x00000001 /* GPI status change interrupt */
+#define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */
+#define ICH_CAS 0x01 /* codec access semaphore */
+
+#define ICH_MAX_FRAGS 32 /* max hw frags */
+
+
+/*
+ *
+ */
+
+enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
+enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
+
+#define get_ichdev(substream) (ichdev_t *)(substream->runtime->private_data)
+
+typedef struct {
+ unsigned int ichd; /* ich device number */
+ unsigned long reg_offset; /* offset to bmaddr */
+ u32 *bdbar; /* CPU address (32bit) */
+ unsigned int bdbar_addr; /* PCI bus address (32bit) */
+ snd_pcm_substream_t *substream;
+ unsigned int physbuf; /* physical address (32bit) */
+ unsigned int size;
+ unsigned int fragsize;
+ unsigned int fragsize1;
+ unsigned int position;
+ int frags;
+ int lvi;
+ int lvi_frag;
+ int civ;
+ int ack;
+ int ack_reload;
+ unsigned int ack_bit;
+ unsigned int roff_sr;
+ unsigned int roff_picb;
+ unsigned int int_sta_mask; /* interrupt status mask */
+ unsigned int ali_slot; /* ALI DMA slot */
+ ac97_t *ac97;
+} ichdev_t;
+
+typedef struct _snd_intel8x0m intel8x0_t;
+#define chip_t intel8x0_t
+
+struct _snd_intel8x0m {
+ unsigned int device_type;
+ char ac97_name[64];
+ char ctrl_name[64];
+
+ int irq;
+
+ unsigned int mmio;
+ unsigned long addr;
+ unsigned long remap_addr;
+ struct resource *res;
+ unsigned int bm_mmio;
+ unsigned long bmaddr;
+ unsigned long remap_bmaddr;
+ struct resource *res_bm;
+
+ struct pci_dev *pci;
+ snd_card_t *card;
+
+ int pcm_devs;
+ snd_pcm_t *pcm[2];
+ ichdev_t ichd[2];
+
+ int in_ac97_init: 1;
+
+ ac97_bus_t *ac97_bus;
+ ac97_t *ac97;
+
+ spinlock_t reg_lock;
+ spinlock_t ac97_lock;
+
+ struct snd_dma_device dma_dev;
+ struct snd_dma_buffer bdbars;
+ u32 bdbars_count;
+ u32 int_sta_reg; /* interrupt status register */
+ u32 int_sta_mask; /* interrupt status mask */
+ unsigned int pcm_pos_shift;
+
+#ifdef CONFIG_PM
+ int in_suspend;
+#endif
+};
+
+static struct pci_device_id snd_intel8x0m_ids[] = {
+ { 0x8086, 0x2416, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
+ { 0x8086, 0x2426, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
+ { 0x8086, 0x2446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
+ { 0x8086, 0x2486, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
+ { 0x8086, 0x24c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH4 */
+ { 0x8086, 0x24d6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH5 */
+ { 0x8086, 0x7196, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
+ { 0x1022, 0x7446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
+#if 0
+ /* TODO: support needed */
+ { 0x1039, 0x7013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7013 */
+ { 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */
+ { 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */
+ { 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */
+ { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
+ { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
+#endif
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
+
+/*
+ * Lowlevel I/O - busmaster
+ */
+
+static u8 igetbyte(intel8x0_t *chip, u32 offset)
+{
+ if (chip->bm_mmio)
+ return readb(chip->remap_bmaddr + offset);
+ else
+ return inb(chip->bmaddr + offset);
+}
+
+static u16 igetword(intel8x0_t *chip, u32 offset)
+{
+ if (chip->bm_mmio)
+ return readw(chip->remap_bmaddr + offset);
+ else
+ return inw(chip->bmaddr + offset);
+}
+
+static u32 igetdword(intel8x0_t *chip, u32 offset)
+{
+ if (chip->bm_mmio)
+ return readl(chip->remap_bmaddr + offset);
+ else
+ return inl(chip->bmaddr + offset);
+}
+
+static void iputbyte(intel8x0_t *chip, u32 offset, u8 val)
+{
+ if (chip->bm_mmio)
+ writeb(val, chip->remap_bmaddr + offset);
+ else
+ outb(val, chip->bmaddr + offset);
+}
+
+static void iputdword(intel8x0_t *chip, u32 offset, u32 val)
+{
+ if (chip->bm_mmio)
+ writel(val, chip->remap_bmaddr + offset);
+ else
+ outl(val, chip->bmaddr + offset);
+}
+
+/*
+ * Lowlevel I/O - AC'97 registers
+ */
+
+static u16 iagetword(intel8x0_t *chip, u32 offset)
+{
+ if (chip->mmio)
+ return readw(chip->remap_addr + offset);
+ else
+ return inw(chip->addr + offset);
+}
+
+static void iaputword(intel8x0_t *chip, u32 offset, u16 val)
+{
+ if (chip->mmio)
+ writew(val, chip->remap_addr + offset);
+ else
+ outw(val, chip->addr + offset);
+}
+
+/*
+ * Basic I/O
+ */
+
+/*
+ * access to AC97 codec via normal i/o (for ICH and SIS7013)
+ */
+
+/* return the GLOB_STA bit for the corresponding codec */
+static unsigned int get_ich_codec_bit(intel8x0_t *chip, unsigned int codec)
+{
+ static unsigned int codec_bit[3] = {
+ ICH_PCR, ICH_SCR, ICH_TCR
+ };
+ snd_assert(codec < 3, return ICH_PCR);
+ return codec_bit[codec];
+}
+
+static int snd_intel8x0m_codec_semaphore(intel8x0_t *chip, unsigned int codec)
+{
+ int time;
+
+ if (codec > 1)
+ return -EIO;
+ codec = get_ich_codec_bit(chip, codec);
+
+ /* codec ready ? */
+ if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
+ return -EIO;
+
+ /* Anyone holding a semaphore for 1 msec should be shot... */
+ time = 100;
+ do {
+ if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
+ return 0;
+ udelay(10);
+ } while (time--);
+
+ /* access to some forbidden (non existant) ac97 registers will not
+ * reset the semaphore. So even if you don't get the semaphore, still
+ * continue the access. We don't need the semaphore anyway. */
+ snd_printk("codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
+ igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
+ iagetword(chip, 0); /* clear semaphore flag */
+ /* I don't care about the semaphore */
+ return -EBUSY;
+}
+
+static void snd_intel8x0_codec_write(ac97_t *ac97,
+ unsigned short reg,
+ unsigned short val)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, ac97->private_data, return);
+
+ spin_lock(&chip->ac97_lock);
+ if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
+ if (! chip->in_ac97_init)
+ snd_printk("codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
+ }
+ iaputword(chip, reg + ac97->num * 0x80, val);
+ spin_unlock(&chip->ac97_lock);
+}
+
+static unsigned short snd_intel8x0_codec_read(ac97_t *ac97,
+ unsigned short reg)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, ac97->private_data, return ~0);
+ unsigned short res;
+ unsigned int tmp;
+
+ spin_lock(&chip->ac97_lock);
+ if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
+ if (! chip->in_ac97_init)
+ snd_printk("codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
+ res = 0xffff;
+ } else {
+ res = iagetword(chip, reg + ac97->num * 0x80);
+ if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
+ /* reset RCS and preserve other R/WC bits */
+ iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
+ if (! chip->in_ac97_init)
+ snd_printk("codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
+ res = 0xffff;
+ }
+ }
+ spin_unlock(&chip->ac97_lock);
+ return res;
+}
+
+
+/*
+ * DMA I/O
+ */
+static void snd_intel8x0_setup_periods(intel8x0_t *chip, ichdev_t *ichdev)
+{
+ int idx;
+ u32 *bdbar = ichdev->bdbar;
+ unsigned long port = ichdev->reg_offset;
+
+ iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
+ if (ichdev->size == ichdev->fragsize) {
+ ichdev->ack_reload = ichdev->ack = 2;
+ ichdev->fragsize1 = ichdev->fragsize >> 1;
+ for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
+ bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
+ bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
+ ichdev->fragsize1 >> chip->pcm_pos_shift);
+ bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
+ bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
+ ichdev->fragsize1 >> chip->pcm_pos_shift);
+ }
+ ichdev->frags = 2;
+ } else {
+ ichdev->ack_reload = ichdev->ack = 1;
+ ichdev->fragsize1 = ichdev->fragsize;
+ for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
+ bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
+ bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
+ ichdev->fragsize >> chip->pcm_pos_shift);
+ // printk("bdbar[%i] = 0x%x [0x%x]\n", idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
+ }
+ ichdev->frags = ichdev->size / ichdev->fragsize;
+ }
+ iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
+ ichdev->civ = 0;
+ iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
+ ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
+ ichdev->position = 0;
+#if 0
+ printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
+ ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
+#endif
+ /* clear interrupts */
+ iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
+}
+
+/*
+ * Interrupt handler
+ */
+
+static inline void snd_intel8x0_update(intel8x0_t *chip, ichdev_t *ichdev)
+{
+ unsigned long port = ichdev->reg_offset;
+ int civ, i, step;
+ int ack = 0;
+
+ civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
+ if (civ == ichdev->civ) {
+ // snd_printd("civ same %d\n", civ);
+ step = 1;
+ ichdev->civ++;
+ ichdev->civ &= ICH_REG_LVI_MASK;
+ } else {
+ step = civ - ichdev->civ;
+ if (step < 0)
+ step += ICH_REG_LVI_MASK + 1;
+ // if (step != 1)
+ // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
+ ichdev->civ = civ;
+ }
+
+ ichdev->position += step * ichdev->fragsize1;
+ ichdev->position %= ichdev->size;
+ ichdev->lvi += step;
+ ichdev->lvi &= ICH_REG_LVI_MASK;
+ iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
+ for (i = 0; i < step; i++) {
+ ichdev->lvi_frag++;
+ ichdev->lvi_frag %= ichdev->frags;
+ ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
+ // printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n", ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2], ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port), inl(port + 4), inb(port + ICH_REG_OFF_CR));
+ if (--ichdev->ack == 0) {
+ ichdev->ack = ichdev->ack_reload;
+ ack = 1;
+ }
+ }
+ if (ack && ichdev->substream) {
+ spin_unlock(&chip->reg_lock);
+ snd_pcm_period_elapsed(ichdev->substream);
+ spin_lock(&chip->reg_lock);
+ }
+ iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
+}
+
+static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, dev_id, return IRQ_NONE);
+ ichdev_t *ichdev;
+ unsigned int status;
+ unsigned int i;
+
+ spin_lock(&chip->reg_lock);
+ status = igetdword(chip, chip->int_sta_reg);
+ if ((status & chip->int_sta_mask) == 0) {
+ if (status)
+ iputdword(chip, chip->int_sta_reg, status);
+ spin_unlock(&chip->reg_lock);
+ return IRQ_NONE;
+ }
+
+ for (i = 0; i < chip->bdbars_count; i++) {
+ ichdev = &chip->ichd[i];
+ if (status & ichdev->int_sta_mask)
+ snd_intel8x0_update(chip, ichdev);
+ }
+
+ /* ack them */
+ iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
+ spin_unlock(&chip->reg_lock);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * PCM part
+ */
+
+static int snd_intel8x0_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+ ichdev_t *ichdev = get_ichdev(substream);
+ unsigned char val = 0;
+ unsigned long port = ichdev->reg_offset;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ val = ICH_IOCE | ICH_STARTBM;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ val = 0;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ val = ICH_IOCE;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ val = ICH_IOCE | ICH_STARTBM;
+ break;
+ default:
+ return -EINVAL;
+ }
+ iputbyte(chip, port + ICH_REG_OFF_CR, val);
+ if (cmd == SNDRV_PCM_TRIGGER_STOP) {
+ /* wait until DMA stopped */
+ while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
+ /* reset whole DMA things */
+ iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
+ }
+ return 0;
+}
+
+static int snd_intel8x0_hw_params(snd_pcm_substream_t * substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+}
+
+static int snd_intel8x0_hw_free(snd_pcm_substream_t * substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+ ichdev_t *ichdev = get_ichdev(substream);
+ size_t ptr1, ptr;
+
+ ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
+ if (ptr1 != 0)
+ ptr = ichdev->fragsize1 - ptr1;
+ else
+ ptr = 0;
+ ptr += ichdev->position;
+ if (ptr >= ichdev->size)
+ return 0;
+ return bytes_to_frames(substream->runtime, ptr);
+}
+
+static int snd_intel8x0m_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+{
+ ichdev_t *ichdev = get_ichdev(substream);
+ /* hook off/on on start/stop */
+ /* TODO: move it to ac97 controls */
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ snd_ac97_update_bits(ichdev->ac97, AC97_GPIO_STATUS,
+ AC97_GPIO_LINE1_OH, AC97_GPIO_LINE1_OH);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ snd_ac97_update_bits(ichdev->ac97, AC97_GPIO_STATUS,
+ AC97_GPIO_LINE1_OH, ~AC97_GPIO_LINE1_OH);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return snd_intel8x0_pcm_trigger(substream,cmd);
+}
+
+static int snd_intel8x0m_pcm_prepare(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ ichdev_t *ichdev = get_ichdev(substream);
+
+ ichdev->physbuf = runtime->dma_addr;
+ ichdev->size = snd_pcm_lib_buffer_bytes(substream);
+ ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
+ snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
+ snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
+ snd_intel8x0_setup_periods(chip, ichdev);
+ return 0;
+}
+
+static snd_pcm_hardware_t snd_intel8x0m_stream =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
+ .rate_min = 8000,
+ .rate_max = 16000,
+ .channels_min = 1,
+ .channels_max = 1,
+ .buffer_bytes_max = 32 * 1024,
+ .period_bytes_min = 32,
+ .period_bytes_max = 32 * 1024,
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0,
+};
+
+
+static int snd_intel8x0m_pcm_open(snd_pcm_substream_t * substream, ichdev_t *ichdev)
+{
+ static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
+ static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0,
+ };
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ int err;
+
+ ichdev->substream = substream;
+ runtime->hw = snd_intel8x0m_stream;
+ err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
+ if ( err < 0 )
+ return err;
+ runtime->private_data = ichdev;
+ return 0;
+}
+
+static int snd_intel8x0m_playback_open(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+
+ return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
+}
+
+static int snd_intel8x0m_playback_close(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+
+ chip->ichd[ICHD_MDMOUT].substream = NULL;
+ return 0;
+}
+
+static int snd_intel8x0m_capture_open(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+
+ return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
+}
+
+static int snd_intel8x0m_capture_close(snd_pcm_substream_t * substream)
+{
+ intel8x0_t *chip = snd_pcm_substream_chip(substream);
+
+ chip->ichd[ICHD_MDMIN].substream = NULL;
+ return 0;
+}
+
+
+static snd_pcm_ops_t snd_intel8x0m_playback_ops = {
+ .open = snd_intel8x0m_playback_open,
+ .close = snd_intel8x0m_playback_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_intel8x0_hw_params,
+ .hw_free = snd_intel8x0_hw_free,
+ .prepare = snd_intel8x0m_pcm_prepare,
+ .trigger = snd_intel8x0m_pcm_trigger,
+ .pointer = snd_intel8x0_pcm_pointer,
+};
+
+static snd_pcm_ops_t snd_intel8x0m_capture_ops = {
+ .open = snd_intel8x0m_capture_open,
+ .close = snd_intel8x0m_capture_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_intel8x0_hw_params,
+ .hw_free = snd_intel8x0_hw_free,
+ .prepare = snd_intel8x0m_pcm_prepare,
+ .trigger = snd_intel8x0m_pcm_trigger,
+ .pointer = snd_intel8x0_pcm_pointer,
+};
+
+
+struct ich_pcm_table {
+ char *suffix;
+ snd_pcm_ops_t *playback_ops;
+ snd_pcm_ops_t *capture_ops;
+ size_t prealloc_size;
+ size_t prealloc_max_size;
+ int ac97_idx;
+};
+
+static int __devinit snd_intel8x0_pcm1(intel8x0_t *chip, int device, struct ich_pcm_table *rec)
+{
+ snd_pcm_t *pcm;
+ int err;
+ char name[32];
+
+ if (rec->suffix)
+ sprintf(name, "Intel ICH - %s", rec->suffix);
+ else
+ strcpy(name, "Intel ICH");
+ err = snd_pcm_new(chip->card, name, device,
+ rec->playback_ops ? 1 : 0,
+ rec->capture_ops ? 1 : 0, &pcm);
+ if (err < 0)
+ return err;
+
+ if (rec->playback_ops)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
+ if (rec->capture_ops)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
+
+ pcm->private_data = chip;
+ pcm->info_flags = 0;
+ if (rec->suffix)
+ sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
+ else
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcm[device] = pcm;
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ rec->prealloc_size,
+ rec->prealloc_max_size);
+
+ return 0;
+}
+
+static struct ich_pcm_table intel_pcms[] __devinitdata = {
+ {
+ .suffix = "Modem",
+ .playback_ops = &snd_intel8x0m_playback_ops,
+ .capture_ops = &snd_intel8x0m_capture_ops,
+ .prealloc_size = 4 * 1024,
+ .prealloc_max_size = 16 * 1024,
+ },
+};
+
+static int __devinit snd_intel8x0_pcm(intel8x0_t *chip)
+{
+ int i, tblsize, device, err;
+ struct ich_pcm_table *tbl, *rec;
+
+#if 1
+ tbl = intel_pcms;
+ tblsize = 1;
+#else
+ switch (chip->device_type) {
+ case DEVICE_NFORCE:
+ tbl = nforce_pcms;
+ tblsize = ARRAY_SIZE(nforce_pcms);
+ break;
+ case DEVICE_ALI:
+ tbl = ali_pcms;
+ tblsize = ARRAY_SIZE(ali_pcms);
+ break;
+ default:
+ tbl = intel_pcms;
+ tblsize = 2;
+ break;
+ }
+#endif
+ device = 0;
+ for (i = 0; i < tblsize; i++) {
+ rec = tbl + i;
+ if (i > 0 && rec->ac97_idx) {
+ /* activate PCM only when associated AC'97 codec */
+ if (! chip->ichd[rec->ac97_idx].ac97)
+ continue;
+ }
+ err = snd_intel8x0_pcm1(chip, device, rec);
+ if (err < 0)
+ return err;
+ device++;
+ }
+
+ chip->pcm_devs = device;
+ return 0;
+}
+
+
+/*
+ * Mixer part
+ */
+
+static void snd_intel8x0_mixer_free_ac97_bus(ac97_bus_t *bus)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, bus->private_data, return);
+ chip->ac97_bus = NULL;
+}
+
+static void snd_intel8x0_mixer_free_ac97(ac97_t *ac97)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, ac97->private_data, return);
+ chip->ac97 = NULL;
+}
+
+
+static int __devinit snd_intel8x0_mixer(intel8x0_t *chip, int ac97_clock)
+{
+ ac97_bus_t bus, *pbus;
+ ac97_t ac97, *x97;
+ int err;
+ unsigned int glob_sta = 0;
+
+ chip->in_ac97_init = 1;
+ memset(&bus, 0, sizeof(bus));
+ bus.private_data = chip;
+ bus.private_free = snd_intel8x0_mixer_free_ac97_bus;
+ if (ac97_clock >= 8000 && ac97_clock <= 48000)
+ bus.clock = ac97_clock;
+ else
+ bus.clock = 48000;
+
+ memset(&ac97, 0, sizeof(ac97));
+ ac97.private_data = chip;
+ ac97.private_free = snd_intel8x0_mixer_free_ac97;
+
+ glob_sta = igetdword(chip, ICHREG(GLOB_STA));
+ bus.write = snd_intel8x0_codec_write;
+ bus.read = snd_intel8x0_codec_read;
+ bus.vra = 1;
+
+ if ((err = snd_ac97_bus(chip->card, &bus, &pbus)) < 0)
+ goto __err;
+ chip->ac97_bus = pbus;
+ ac97.pci = chip->pci;
+ ac97.num = glob_sta & ICH_SCR ? 1 : 0;
+ if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) {
+ snd_printk(KERN_ERR "Unable to initialize codec #%d\n", ac97.num);
+ if (ac97.num == 0)
+ goto __err;
+ return err;
+ }
+ chip->ac97 = x97;
+ if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97 ) {
+ chip->ichd[ICHD_MDMIN].ac97 = x97;
+ chip->ichd[ICHD_MDMOUT].ac97 = x97;
+ }
+
+ chip->in_ac97_init = 0;
+ return 0;
+
+ __err:
+ /* clear the cold-reset bit for the next chance */
+ if (chip->device_type != DEVICE_ALI)
+ iputdword(chip, ICHREG(GLOB_CNT), igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
+ return err;
+}
+
+
+/*
+ *
+ */
+
+#define do_delay(chip) do {\
+ set_current_state(TASK_UNINTERRUPTIBLE);\
+ schedule_timeout(1);\
+} while (0)
+
+static int snd_intel8x0m_ich_chip_init(intel8x0_t *chip, int probing)
+{
+ unsigned long end_time;
+ unsigned int cnt, status, nstatus;
+
+ /* put logic to right state */
+ /* first clear status bits */
+ status = ICH_RCS | ICH_MIINT | ICH_MOINT;
+ cnt = igetdword(chip, ICHREG(GLOB_STA));
+ iputdword(chip, ICHREG(GLOB_STA), cnt & status);
+
+ /* ACLink on, 2 channels */
+ cnt = igetdword(chip, ICHREG(GLOB_CNT));
+ cnt &= ~(ICH_ACLINK);
+ /* finish cold or do warm reset */
+ cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
+ iputdword(chip, ICHREG(GLOB_CNT), cnt);
+ end_time = (jiffies + (HZ / 4)) + 1;
+ do {
+ if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
+ goto __ok;
+ do_delay(chip);
+ } while (time_after_eq(end_time, jiffies));
+ snd_printk("AC'97 warm reset still in progress? [0x%x]\n", igetdword(chip, ICHREG(GLOB_CNT)));
+ return -EIO;
+
+ __ok:
+ if (probing) {
+ /* wait for any codec ready status.
+ * Once it becomes ready it should remain ready
+ * as long as we do not disable the ac97 link.
+ */
+ end_time = jiffies + HZ;
+ do {
+ status = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
+ if (status)
+ break;
+ do_delay(chip);
+ } while (time_after_eq(end_time, jiffies));
+ if (! status) {
+ /* no codec is found */
+ snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n", igetdword(chip, ICHREG(GLOB_STA)));
+ return -EIO;
+ }
+
+ /* up to two codecs (modem cannot be tertiary with ICH4) */
+ nstatus = ICH_PCR | ICH_SCR;
+
+ /* wait for other codecs ready status. */
+ end_time = jiffies + HZ / 4;
+ while (status != nstatus && time_after_eq(end_time, jiffies)) {
+ do_delay(chip);
+ status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
+ }
+
+ } else {
+ /* resume phase */
+ status = 0;
+ if (chip->ac97)
+ status |= get_ich_codec_bit(chip, chip->ac97->num);
+ /* wait until all the probed codecs are ready */
+ end_time = jiffies + HZ;
+ do {
+ nstatus = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
+ if (status == nstatus)
+ break;
+ do_delay(chip);
+ } while (time_after_eq(end_time, jiffies));
+ }
+
+ return 0;
+}
+
+static int snd_intel8x0_chip_init(intel8x0_t *chip, int probing)
+{
+ unsigned int i;
+ int err;
+
+ if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
+ return err;
+ iagetword(chip, 0); /* clear semaphore flag */
+
+ /* disable interrupts */
+ for (i = 0; i < chip->bdbars_count; i++)
+ iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
+ /* reset channels */
+ for (i = 0; i < chip->bdbars_count; i++)
+ iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
+ /* initialize Buffer Descriptor Lists */
+ for (i = 0; i < chip->bdbars_count; i++)
+ iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
+ return 0;
+}
+
+static int snd_intel8x0_free(intel8x0_t *chip)
+{
+ unsigned int i;
+
+ if (chip->irq < 0)
+ goto __hw_end;
+ /* disable interrupts */
+ for (i = 0; i < chip->bdbars_count; i++)
+ iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
+ /* reset channels */
+ for (i = 0; i < chip->bdbars_count; i++)
+ iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
+ /* --- */
+ synchronize_irq(chip->irq);
+ __hw_end:
+ if (chip->bdbars.area)
+ snd_dma_free_pages(&chip->dma_dev, &chip->bdbars);
+ if (chip->remap_addr)
+ iounmap((void *) chip->remap_addr);
+ if (chip->remap_bmaddr)
+ iounmap((void *) chip->remap_bmaddr);
+ if (chip->res) {
+ release_resource(chip->res);
+ kfree_nocheck(chip->res);
+ }
+ if (chip->res_bm) {
+ release_resource(chip->res_bm);
+ kfree_nocheck(chip->res_bm);
+ }
+ if (chip->irq >= 0)
+ free_irq(chip->irq, (void *)chip);
+ snd_magic_kfree(chip);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+/*
+ * power management
+ */
+static void intel8x0_suspend(intel8x0_t *chip)
+{
+ snd_card_t *card = chip->card;
+ int i;
+
+ if (chip->in_suspend ||
+ card->power_state == SNDRV_CTL_POWER_D3hot)
+ return;
+
+ chip->in_suspend = 1;
+ for (i = 0; i < chip->pcm_devs; i++)
+ snd_pcm_suspend_all(chip->pcm[i]);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+}
+
+static void intel8x0_resume(intel8x0_t *chip)
+{
+ snd_card_t *card = chip->card;
+
+ if (! chip->in_suspend ||
+ card->power_state == SNDRV_CTL_POWER_D0)
+ return;
+
+ pci_enable_device(chip->pci);
+ pci_set_master(chip->pci);
+ snd_intel8x0_chip_init(chip, 0);
+ if (chip->ac97)
+ snd_ac97_resume(chip->ac97);
+
+ chip->in_suspend = 0;
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+}
+
+static int snd_intel8x0m_suspend(struct pci_dev *dev, u32 state)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, pci_get_drvdata(dev), return -ENXIO);
+ intel8x0_suspend(chip);
+ return 0;
+}
+static int snd_intel8x0m_resume(struct pci_dev *dev)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, pci_get_drvdata(dev), return -ENXIO);
+ intel8x0_resume(chip);
+ return 0;
+}
+
+/* callback */
+static int snd_intel8x0_set_power_state(snd_card_t *card, unsigned int power_state)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, card->power_state_private_data, return -ENXIO);
+ switch (power_state) {
+ case SNDRV_CTL_POWER_D0:
+ case SNDRV_CTL_POWER_D1:
+ case SNDRV_CTL_POWER_D2:
+ intel8x0_resume(chip);
+ break;
+ case SNDRV_CTL_POWER_D3hot:
+ case SNDRV_CTL_POWER_D3cold:
+ intel8x0_suspend(chip);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+static void snd_intel8x0m_proc_read(snd_info_entry_t * entry,
+ snd_info_buffer_t * buffer)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, entry->private_data, return);
+ unsigned int tmp;
+
+ snd_iprintf(buffer, "Intel8x0m\n\n");
+ if (chip->device_type == DEVICE_ALI)
+ return;
+ tmp = igetdword(chip, ICHREG(GLOB_STA));
+ snd_iprintf(buffer, "Global control : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
+ snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
+ snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
+ tmp & ICH_PCR ? " primary" : "",
+ tmp & ICH_SCR ? " secondary" : "",
+ tmp & ICH_TCR ? " tertiary" : "",
+ (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
+}
+
+static void __devinit snd_intel8x0m_proc_init(intel8x0_t * chip)
+{
+ snd_info_entry_t *entry;
+
+ if (! snd_card_proc_new(chip->card, "intel8x0m", &entry))
+ snd_info_set_text_ops(entry, chip, 1024, snd_intel8x0m_proc_read);
+}
+
+static int snd_intel8x0_dev_free(snd_device_t *device)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, device->device_data, return -ENXIO);
+ return snd_intel8x0_free(chip);
+}
+
+struct ich_reg_info {
+ unsigned int int_sta_mask;
+ unsigned int offset;
+};
+
+static int __devinit snd_intel8x0m_create(snd_card_t * card,
+ struct pci_dev *pci,
+ unsigned long device_type,
+ intel8x0_t ** r_intel8x0)
+{
+ intel8x0_t *chip;
+ int err;
+ unsigned int i;
+ unsigned int int_sta_masks;
+ ichdev_t *ichdev;
+ static snd_device_ops_t ops = {
+ .dev_free = snd_intel8x0_dev_free,
+ };
+ static struct ich_reg_info intel_regs[2] = {
+ { ICH_MIINT, 0 },
+ { ICH_MOINT, 0x10 },
+ };
+ struct ich_reg_info *tbl;
+
+ *r_intel8x0 = NULL;
+
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+
+ chip = snd_magic_kcalloc(intel8x0_t, 0, GFP_KERNEL);
+ if (chip == NULL)
+ return -ENOMEM;
+ spin_lock_init(&chip->reg_lock);
+ spin_lock_init(&chip->ac97_lock);
+ chip->device_type = device_type;
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+ snd_intel8x0m_proc_init(chip);
+ sprintf(chip->ac97_name, "%s - AC'97", card->shortname);
+ sprintf(chip->ctrl_name, "%s - Controller", card->shortname);
+ if (device_type == DEVICE_ALI) {
+ /* ALI5455 has no ac97 region */
+ chip->bmaddr = pci_resource_start(pci, 0);
+ if ((chip->res_bm = request_region(chip->bmaddr, 256, chip->ctrl_name)) == NULL) {
+ snd_printk("unable to grab ports 0x%lx-0x%lx\n", chip->bmaddr, chip->bmaddr + 256 - 1);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ goto port_inited;
+ }
+
+ if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) { /* ICH4 and Nforce */
+ chip->mmio = 1;
+ chip->addr = pci_resource_start(pci, 2);
+ if ((chip->res = request_mem_region(chip->addr, 512, chip->ac97_name)) == NULL) {
+ snd_printk("unable to grab I/O memory 0x%lx-0x%lx\n", chip->addr, chip->addr + 512 - 1);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ chip->remap_addr = (unsigned long) ioremap_nocache(chip->addr, 512);
+ if (chip->remap_addr == 0) {
+ snd_printk("AC'97 space ioremap problem\n");
+ snd_intel8x0_free(chip);
+ return -EIO;
+ }
+ } else {
+ chip->addr = pci_resource_start(pci, 0);
+ if ((chip->res = request_region(chip->addr, 256, chip->ac97_name)) == NULL) {
+ snd_printk("unable to grab ports 0x%lx-0x%lx\n", chip->addr, chip->addr + 256 - 1);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ }
+ if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) { /* ICH4 */
+ chip->bm_mmio = 1;
+ chip->bmaddr = pci_resource_start(pci, 3);
+ if ((chip->res_bm = request_mem_region(chip->bmaddr, 256, chip->ctrl_name)) == NULL) {
+ snd_printk("unable to grab I/O memory 0x%lx-0x%lx\n", chip->bmaddr, chip->bmaddr + 512 - 1);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ chip->remap_bmaddr = (unsigned long) ioremap_nocache(chip->bmaddr, 256);
+ if (chip->remap_bmaddr == 0) {
+ snd_printk("Controller space ioremap problem\n");
+ snd_intel8x0_free(chip);
+ return -EIO;
+ }
+ } else {
+ chip->bmaddr = pci_resource_start(pci, 1);
+ if ((chip->res_bm = request_region(chip->bmaddr, 128, chip->ctrl_name)) == NULL) {
+ snd_printk("unable to grab ports 0x%lx-0x%lx\n", chip->bmaddr, chip->bmaddr + 128 - 1);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ }
+
+ port_inited:
+ if (request_irq(pci->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
+ snd_printk("unable to grab IRQ %d\n", pci->irq);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ chip->irq = pci->irq;
+ pci_set_master(pci);
+ synchronize_irq(chip->irq);
+
+ /* initialize offsets */
+ chip->bdbars_count = 2;
+ tbl = intel_regs;
+
+ for (i = 0; i < chip->bdbars_count; i++) {
+ ichdev = &chip->ichd[i];
+ ichdev->ichd = i;
+ ichdev->reg_offset = tbl[i].offset;
+ ichdev->int_sta_mask = tbl[i].int_sta_mask;
+ if (device_type == DEVICE_SIS) {
+ /* SiS 7013 swaps the registers */
+ ichdev->roff_sr = ICH_REG_OFF_PICB;
+ ichdev->roff_picb = ICH_REG_OFF_SR;
+ } else {
+ ichdev->roff_sr = ICH_REG_OFF_SR;
+ ichdev->roff_picb = ICH_REG_OFF_PICB;
+ }
+ if (device_type == DEVICE_ALI)
+ ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
+ }
+ /* SIS7013 handles the pcm data in bytes, others are in words */
+ chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
+
+ /* allocate buffer descriptor lists */
+ /* the start of each lists must be aligned to 8 bytes */
+ memset(&chip->dma_dev, 0, sizeof(chip->dma_dev));
+ chip->dma_dev.type = SNDRV_DMA_TYPE_DEV;
+ chip->dma_dev.dev = snd_dma_pci_data(pci);
+ if (snd_dma_alloc_pages(&chip->dma_dev, chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2, &chip->bdbars) < 0) {
+ snd_intel8x0_free(chip);
+ return -ENOMEM;
+ }
+ /* tables must be aligned to 8 bytes here, but the kernel pages
+ are much bigger, so we don't care (on i386) */
+ int_sta_masks = 0;
+ for (i = 0; i < chip->bdbars_count; i++) {
+ ichdev = &chip->ichd[i];
+ ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
+ ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
+ int_sta_masks |= ichdev->int_sta_mask;
+ }
+ chip->int_sta_reg = ICH_REG_GLOB_STA;
+ chip->int_sta_mask = int_sta_masks;
+
+ if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
+ snd_intel8x0_free(chip);
+ return err;
+ }
+
+#ifdef CONFIG_PM
+ card->set_power_state = snd_intel8x0_set_power_state;
+ card->power_state_private_data = chip;
+#endif
+
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+ snd_intel8x0_free(chip);
+ return err;
+ }
+
+ snd_card_set_dev(card, &pci->dev);
+
+ *r_intel8x0 = chip;
+ return 0;
+}
+
+static struct shortname_table {
+ unsigned int id;
+ const char *s;
+} shortnames[] __devinitdata = {
+ { PCI_DEVICE_ID_INTEL_82801_6, "Intel 82801AA-ICH" },
+ { PCI_DEVICE_ID_INTEL_82901_6, "Intel 82901AB-ICH0" },
+ { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
+ { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
+ { PCI_DEVICE_ID_INTEL_ICH3_6, "Intel 82801CA-ICH3" },
+ { PCI_DEVICE_ID_INTEL_ICH4_6, "Intel 82801DB-ICH4" },
+ { PCI_DEVICE_ID_INTEL_ICH5_6, "Intel ICH5" },
+ { 0x7446, "AMD AMD768" },
+#if 0
+ { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
+ { PCI_DEVICE_ID_NVIDIA_MCP_AUDIO, "NVidia nForce" },
+ { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
+ { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
+ { 0x5455, "ALi M5455" },
+ { 0x746d, "AMD AMD8111" },
+#endif
+ { 0, 0 },
+};
+
+static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ snd_card_t *card;
+ intel8x0_t *chip;
+ int err;
+ struct shortname_table *name;
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+ if (card == NULL)
+ return -ENOMEM;
+
+ switch (pci_id->driver_data) {
+ case DEVICE_NFORCE:
+ strcpy(card->driver, "NFORCE");
+ break;
+ default:
+ strcpy(card->driver, "ICH");
+ break;
+ }
+
+ strcpy(card->shortname, "Intel ICH");
+ for (name = shortnames; name->id; name++) {
+ if (pci->device == name->id) {
+ strcpy(card->shortname, name->s);
+ break;
+ }
+ }
+ strcat(card->shortname," Modem");
+
+ if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ if ((err = snd_intel8x0_mixer(chip, ac97_clock[dev])) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if ((err = snd_intel8x0_pcm(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ sprintf(card->longname, "%s at 0x%lx, irq %i",
+ card->shortname, chip->addr, chip->irq);
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ pci_set_drvdata(pci, chip);
+ dev++;
+ return 0;
+}
+
+static void __devexit snd_intel8x0m_remove(struct pci_dev *pci)
+{
+ intel8x0_t *chip = snd_magic_cast(intel8x0_t, pci_get_drvdata(pci), return);
+ if (chip)
+ snd_card_free(chip->card);
+ pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver driver = {
+ .name = "Intel ICH Modem",
+ .id_table = snd_intel8x0m_ids,
+ .probe = snd_intel8x0m_probe,
+ .remove = __devexit_p(snd_intel8x0m_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_intel8x0m_suspend,
+ .resume = snd_intel8x0m_resume,
+#endif
+};
+
+
+static int __init alsa_card_intel8x0m_init(void)
+{
+ int err;
+
+ if ((err = pci_module_init(&driver)) < 0) {
+#ifdef MODULE
+ printk(KERN_ERR "Intel ICH modemcard not found or device busy\n");
+#endif
+ return err;
+ }
+
+ return 0;
+}
+
+static void __exit alsa_card_intel8x0m_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_intel8x0m_init)
+module_exit(alsa_card_intel8x0m_exit)
+
+#ifndef MODULE
+
+/* format is: snd-intel8x0=enable,index,id,ac97_clock,mpu_port,joystick */
+
+static int __init alsa_card_intel8x0m_setup(char *str)
+{
+ static unsigned __initdata nr_dev = 0;
+
+ if (nr_dev >= SNDRV_CARDS)
+ return 0;
+ (void)(get_option(&str,&enable[nr_dev]) == 2 &&
+ get_option(&str,&index[nr_dev]) == 2 &&
+ get_id(&str,&id[nr_dev]) == 2 &&
+ get_option(&str,&ac97_clock[nr_dev]) == 2
+ );
+ nr_dev++;
+ return 1;
+}
+
+__setup("snd-intel8x0m=", alsa_card_intel8x0m_setup);
+
+#endif /* ifndef MODULE */
projects / history.git / commitdiff