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linux/sound/pci/hda/hda_intel.c
Dylan Reid 2b5fd6c2e9 ALSA: hda - Move the dsp loader to hda_controller 
Moving the DSP loading functionality to hda_controller.c means that
the dsp lock doesn't need to be shared in hda_intel and
hda_controller.  The forthcoming platform driver doesn't need the DSP
loading code, but sharing it doesn't hurt.

Tested on Chromebook Pixel's ca0132 that uses the DSP loader.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-03-01 11:22:38 +01:00

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/*
*
* hda_intel.c - Implementation of primary alsa driver code base
* for Intel HD Audio.
*
* Copyright(c) 2004 Intel Corporation. All rights reserved.
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
* PeiSen Hou <pshou@realtek.com.tw>
*
* 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.
*
* CONTACTS:
*
* Matt Jared matt.jared@intel.com
* Andy Kopp andy.kopp@intel.com
* Dan Kogan dan.d.kogan@intel.com
*
* CHANGES:
*
* 2004.12.01 Major rewrite by tiwai, merged the work of pshou
*
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include <linux/reboot.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <linux/clocksource.h>
#include <linux/time.h>
#include <linux/completion.h>
#ifdef CONFIG_X86
/* for snoop control */
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
#endif
#include <sound/core.h>
#include <sound/initval.h>
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <linux/firmware.h>
#include "hda_codec.h"
#include "hda_i915.h"
#include "hda_controller.h"
#include "hda_priv.h"
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;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_only[SNDRV_CARDS];
static int jackpoll_ms[SNDRV_CARDS];
static bool single_cmd;
static int enable_msi = -1;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
static char *patch[SNDRV_CARDS];
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
CONFIG_SND_HDA_INPUT_BEEP_MODE};
#endif
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model, "Use the given board model.");
module_param_array(position_fix, int, NULL, 0444);
MODULE_PARM_DESC(position_fix, "DMA pointer read method."
"(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
module_param_array(bdl_pos_adj, int, NULL, 0644);
MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
module_param_array(probe_mask, int, NULL, 0444);
MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
module_param_array(probe_only, int, NULL, 0444);
MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
module_param_array(jackpoll_ms, int, NULL, 0444);
MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
module_param(single_cmd, bool, 0444);
MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
"(for debugging only).");
module_param(enable_msi, bint, 0444);
MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
#ifdef CONFIG_SND_HDA_PATCH_LOADER
module_param_array(patch, charp, NULL, 0444);
MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
module_param_array(beep_mode, bool, NULL, 0444);
MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
"(0=off, 1=on) (default=1).");
#endif
#ifdef CONFIG_PM
static int param_set_xint(const char *val, const struct kernel_param *kp);
static struct kernel_param_ops param_ops_xint = {
.set = param_set_xint,
.get = param_get_int,
};
#define param_check_xint param_check_int
static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
static int *power_save_addr = &power_save;
module_param(power_save, xint, 0644);
MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
"(in second, 0 = disable).");
/* reset the HD-audio controller in power save mode.
* this may give more power-saving, but will take longer time to
* wake up.
*/
static bool power_save_controller = 1;
module_param(power_save_controller, bool, 0644);
MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
#else
static int *power_save_addr;
#endif /* CONFIG_PM */
static int align_buffer_size = -1;
module_param(align_buffer_size, bint, 0644);
MODULE_PARM_DESC(align_buffer_size,
"Force buffer and period sizes to be multiple of 128 bytes.");
#ifdef CONFIG_X86
static bool hda_snoop = true;
module_param_named(snoop, hda_snoop, bool, 0444);
MODULE_PARM_DESC(snoop, "Enable/disable snooping");
#else
#define hda_snoop true
#endif
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
"{Intel, ICH6M},"
"{Intel, ICH7},"
"{Intel, ESB2},"
"{Intel, ICH8},"
"{Intel, ICH9},"
"{Intel, ICH10},"
"{Intel, PCH},"
"{Intel, CPT},"
"{Intel, PPT},"
"{Intel, LPT},"
"{Intel, LPT_LP},"
"{Intel, WPT_LP},"
"{Intel, HPT},"
"{Intel, PBG},"
"{Intel, SCH},"
"{ATI, SB450},"
"{ATI, SB600},"
"{ATI, RS600},"
"{ATI, RS690},"
"{ATI, RS780},"
"{ATI, R600},"
"{ATI, RV630},"
"{ATI, RV610},"
"{ATI, RV670},"
"{ATI, RV635},"
"{ATI, RV620},"
"{ATI, RV770},"
"{VIA, VT8251},"
"{VIA, VT8237A},"
"{SiS, SIS966},"
"{ULI, M5461}}");
MODULE_DESCRIPTION("Intel HDA driver");
#if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
#define SUPPORT_VGA_SWITCHEROO
#endif
#endif
/*
*/
/* driver types */
enum {
AZX_DRIVER_ICH,
AZX_DRIVER_PCH,
AZX_DRIVER_SCH,
AZX_DRIVER_HDMI,
AZX_DRIVER_ATI,
AZX_DRIVER_ATIHDMI,
AZX_DRIVER_ATIHDMI_NS,
AZX_DRIVER_VIA,
AZX_DRIVER_SIS,
AZX_DRIVER_ULI,
AZX_DRIVER_NVIDIA,
AZX_DRIVER_TERA,
AZX_DRIVER_CTX,
AZX_DRIVER_CTHDA,
AZX_DRIVER_GENERIC,
AZX_NUM_DRIVERS, /* keep this as last entry */
};
/* quirks for Intel PCH */
#define AZX_DCAPS_INTEL_PCH_NOPM \
(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_BUFSIZE | \
AZX_DCAPS_COUNT_LPIB_DELAY)
#define AZX_DCAPS_INTEL_PCH \
(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
#define AZX_DCAPS_INTEL_HASWELL \
(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_ALIGN_BUFSIZE | \
AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
AZX_DCAPS_I915_POWERWELL)
/* quirks for ATI SB / AMD Hudson */
#define AZX_DCAPS_PRESET_ATI_SB \
(AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
/* quirks for ATI/AMD HDMI */
#define AZX_DCAPS_PRESET_ATI_HDMI \
(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
/* quirks for Nvidia */
#define AZX_DCAPS_PRESET_NVIDIA \
(AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\
AZX_DCAPS_ALIGN_BUFSIZE | AZX_DCAPS_NO_64BIT)
#define AZX_DCAPS_PRESET_CTHDA \
(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY)
/*
* VGA-switcher support
*/
#ifdef SUPPORT_VGA_SWITCHEROO
#define use_vga_switcheroo(chip) ((chip)->use_vga_switcheroo)
#else
#define use_vga_switcheroo(chip) 0
#endif
static char *driver_short_names[] = {
[AZX_DRIVER_ICH] = "HDA Intel",
[AZX_DRIVER_PCH] = "HDA Intel PCH",
[AZX_DRIVER_SCH] = "HDA Intel MID",
[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
[AZX_DRIVER_ATI] = "HDA ATI SB",
[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
[AZX_DRIVER_SIS] = "HDA SIS966",
[AZX_DRIVER_ULI] = "HDA ULI M5461",
[AZX_DRIVER_NVIDIA] = "HDA NVidia",
[AZX_DRIVER_TERA] = "HDA Teradici",
[AZX_DRIVER_CTX] = "HDA Creative",
[AZX_DRIVER_CTHDA] = "HDA Creative",
[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
};
#ifdef CONFIG_X86
static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
{
int pages;
if (azx_snoop(chip))
return;
if (!dmab || !dmab->area || !dmab->bytes)
return;
#ifdef CONFIG_SND_DMA_SGBUF
if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
struct snd_sg_buf *sgbuf = dmab->private_data;
if (on)
set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
else
set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
return;
}
#endif
pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
if (on)
set_memory_wc((unsigned long)dmab->area, pages);
else
set_memory_wb((unsigned long)dmab->area, pages);
}
static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
bool on)
{
__mark_pages_wc(chip, buf, on);
}
static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
struct snd_pcm_substream *substream, bool on)
{
if (azx_dev->wc_marked != on) {
__mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
azx_dev->wc_marked = on;
}
}
#else
/* NOP for other archs */
static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
bool on)
{
}
static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
struct snd_pcm_substream *substream, bool on)
{
}
#endif
static int azx_acquire_irq(struct azx *chip, int do_disconnect);
static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
/*
* Interface for HD codec
*/
/*
* CORB / RIRB interface
*/
static int azx_alloc_cmd_io(struct azx *chip)
{
int err;
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
PAGE_SIZE, &chip->rb);
if (err < 0)
dev_err(chip->card->dev, "cannot allocate CORB/RIRB\n");
return err;
}
static void azx_init_cmd_io(struct azx *chip)
{
int timeout;
spin_lock_irq(&chip->reg_lock);
/* CORB set up */
chip->corb.addr = chip->rb.addr;
chip->corb.buf = (u32 *)chip->rb.area;
azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
/* set the corb size to 256 entries (ULI requires explicitly) */
azx_writeb(chip, CORBSIZE, 0x02);
/* set the corb write pointer to 0 */
azx_writew(chip, CORBWP, 0);
/* reset the corb hw read pointer */
azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
for (timeout = 1000; timeout > 0; timeout--) {
if ((azx_readw(chip, CORBRP) & ICH6_CORBRP_RST) == ICH6_CORBRP_RST)
break;
udelay(1);
}
if (timeout <= 0)
dev_err(chip->card->dev, "CORB reset timeout#1, CORBRP = %d\n",
azx_readw(chip, CORBRP));
azx_writew(chip, CORBRP, 0);
for (timeout = 1000; timeout > 0; timeout--) {
if (azx_readw(chip, CORBRP) == 0)
break;
udelay(1);
}
if (timeout <= 0)
dev_err(chip->card->dev, "CORB reset timeout#2, CORBRP = %d\n",
azx_readw(chip, CORBRP));
/* enable corb dma */
azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
/* RIRB set up */
chip->rirb.addr = chip->rb.addr + 2048;
chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
chip->rirb.wp = chip->rirb.rp = 0;
memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
/* set the rirb size to 256 entries (ULI requires explicitly) */
azx_writeb(chip, RIRBSIZE, 0x02);
/* reset the rirb hw write pointer */
azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
/* set N=1, get RIRB response interrupt for new entry */
if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
azx_writew(chip, RINTCNT, 0xc0);
else
azx_writew(chip, RINTCNT, 1);
/* enable rirb dma and response irq */
azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
spin_unlock_irq(&chip->reg_lock);
}
static void azx_free_cmd_io(struct azx *chip)
{
spin_lock_irq(&chip->reg_lock);
/* disable ringbuffer DMAs */
azx_writeb(chip, RIRBCTL, 0);
azx_writeb(chip, CORBCTL, 0);
spin_unlock_irq(&chip->reg_lock);
}
static unsigned int azx_command_addr(u32 cmd)
{
unsigned int addr = cmd >> 28;
if (addr >= AZX_MAX_CODECS) {
snd_BUG();
addr = 0;
}
return addr;
}
/* send a command */
static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
{
struct azx *chip = bus->private_data;
unsigned int addr = azx_command_addr(val);
unsigned int wp, rp;
spin_lock_irq(&chip->reg_lock);
/* add command to corb */
wp = azx_readw(chip, CORBWP);
if (wp == 0xffff) {
/* something wrong, controller likely turned to D3 */
spin_unlock_irq(&chip->reg_lock);
return -EIO;
}
wp++;
wp %= ICH6_MAX_CORB_ENTRIES;
rp = azx_readw(chip, CORBRP);
if (wp == rp) {
/* oops, it's full */
spin_unlock_irq(&chip->reg_lock);
return -EAGAIN;
}
chip->rirb.cmds[addr]++;
chip->corb.buf[wp] = cpu_to_le32(val);
azx_writew(chip, CORBWP, wp);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
#define ICH6_RIRB_EX_UNSOL_EV (1<<4)
/* retrieve RIRB entry - called from interrupt handler */
static void azx_update_rirb(struct azx *chip)
{
unsigned int rp, wp;
unsigned int addr;
u32 res, res_ex;
wp = azx_readw(chip, RIRBWP);
if (wp == 0xffff) {
/* something wrong, controller likely turned to D3 */
return;
}
if (wp == chip->rirb.wp)
return;
chip->rirb.wp = wp;
while (chip->rirb.rp != wp) {
chip->rirb.rp++;
chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
res = le32_to_cpu(chip->rirb.buf[rp]);
addr = res_ex & 0xf;
if ((addr >= AZX_MAX_CODECS) || !(chip->codec_mask & (1 << addr))) {
dev_err(chip->card->dev, "spurious response %#x:%#x, rp = %d, wp = %d",
res, res_ex,
chip->rirb.rp, wp);
snd_BUG();
}
else if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
snd_hda_queue_unsol_event(chip->bus, res, res_ex);
else if (chip->rirb.cmds[addr]) {
chip->rirb.res[addr] = res;
smp_wmb();
chip->rirb.cmds[addr]--;
} else if (printk_ratelimit()) {
dev_err(chip->card->dev, "spurious response %#x:%#x, last cmd=%#08x\n",
res, res_ex,
chip->last_cmd[addr]);
}
}
}
/* receive a response */
static unsigned int azx_rirb_get_response(struct hda_bus *bus,
unsigned int addr)
{
struct azx *chip = bus->private_data;
unsigned long timeout;
unsigned long loopcounter;
int do_poll = 0;
again:
timeout = jiffies + msecs_to_jiffies(1000);
for (loopcounter = 0;; loopcounter++) {
if (chip->polling_mode || do_poll) {
spin_lock_irq(&chip->reg_lock);
azx_update_rirb(chip);
spin_unlock_irq(&chip->reg_lock);
}
if (!chip->rirb.cmds[addr]) {
smp_rmb();
bus->rirb_error = 0;
if (!do_poll)
chip->poll_count = 0;
return chip->rirb.res[addr]; /* the last value */
}
if (time_after(jiffies, timeout))
break;
if (bus->needs_damn_long_delay || loopcounter > 3000)
msleep(2); /* temporary workaround */
else {
udelay(10);
cond_resched();
}
}
if (!bus->no_response_fallback)
return -1;
if (!chip->polling_mode && chip->poll_count < 2) {
dev_dbg(chip->card->dev,
"azx_get_response timeout, polling the codec once: last cmd=0x%08x\n",
chip->last_cmd[addr]);
do_poll = 1;
chip->poll_count++;
goto again;
}
if (!chip->polling_mode) {
dev_warn(chip->card->dev,
"azx_get_response timeout, switching to polling mode: last cmd=0x%08x\n",
chip->last_cmd[addr]);
chip->polling_mode = 1;
goto again;
}
if (chip->msi) {
dev_warn(chip->card->dev,
"No response from codec, disabling MSI: last cmd=0x%08x\n",
chip->last_cmd[addr]);
if (chip->ops->disable_msi_reset_irq &&
chip->ops->disable_msi_reset_irq(chip) < 0) {
bus->rirb_error = 1;
return -1;
}
goto again;
}
if (chip->probing) {
/* If this critical timeout happens during the codec probing
* phase, this is likely an access to a non-existing codec
* slot. Better to return an error and reset the system.
*/
return -1;
}
/* a fatal communication error; need either to reset or to fallback
* to the single_cmd mode
*/
bus->rirb_error = 1;
if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
bus->response_reset = 1;
return -1; /* give a chance to retry */
}
dev_err(chip->card->dev,
"azx_get_response timeout, switching to single_cmd mode: last cmd=0x%08x\n",
chip->last_cmd[addr]);
chip->single_cmd = 1;
bus->response_reset = 0;
/* release CORB/RIRB */
azx_free_cmd_io(chip);
/* disable unsolicited responses */
azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
return -1;
}
/*
* Use the single immediate command instead of CORB/RIRB for simplicity
*
* Note: according to Intel, this is not preferred use. The command was
* intended for the BIOS only, and may get confused with unsolicited
* responses. So, we shouldn't use it for normal operation from the
* driver.
* I left the codes, however, for debugging/testing purposes.
*/
/* receive a response */
static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
{
int timeout = 50;
while (timeout--) {
/* check IRV busy bit */
if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
/* reuse rirb.res as the response return value */
chip->rirb.res[addr] = azx_readl(chip, IR);
return 0;
}
udelay(1);
}
if (printk_ratelimit())
dev_dbg(chip->card->dev, "get_response timeout: IRS=0x%x\n",
azx_readw(chip, IRS));
chip->rirb.res[addr] = -1;
return -EIO;
}
/* send a command */
static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
{
struct azx *chip = bus->private_data;
unsigned int addr = azx_command_addr(val);
int timeout = 50;
bus->rirb_error = 0;
while (timeout--) {
/* check ICB busy bit */
if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
/* Clear IRV valid bit */
azx_writew(chip, IRS, azx_readw(chip, IRS) |
ICH6_IRS_VALID);
azx_writel(chip, IC, val);
azx_writew(chip, IRS, azx_readw(chip, IRS) |
ICH6_IRS_BUSY);
return azx_single_wait_for_response(chip, addr);
}
udelay(1);
}
if (printk_ratelimit())
dev_dbg(chip->card->dev,
"send_cmd timeout: IRS=0x%x, val=0x%x\n",
azx_readw(chip, IRS), val);
return -EIO;
}
/* receive a response */
static unsigned int azx_single_get_response(struct hda_bus *bus,
unsigned int addr)
{
struct azx *chip = bus->private_data;
return chip->rirb.res[addr];
}
/*
* The below are the main callbacks from hda_codec.
*
* They are just the skeleton to call sub-callbacks according to the
* current setting of chip->single_cmd.
*/
/* send a command */
static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
{
struct azx *chip = bus->private_data;
if (chip->disabled)
return 0;
chip->last_cmd[azx_command_addr(val)] = val;
if (chip->single_cmd)
return azx_single_send_cmd(bus, val);
else
return azx_corb_send_cmd(bus, val);
}
/* get a response */
static unsigned int azx_get_response(struct hda_bus *bus,
unsigned int addr)
{
struct azx *chip = bus->private_data;
if (chip->disabled)
return 0;
if (chip->single_cmd)
return azx_single_get_response(bus, addr);
else
return azx_rirb_get_response(bus, addr);
}
#ifdef CONFIG_PM
static void azx_power_notify(struct hda_bus *bus, bool power_up);
#endif
/* enter link reset */
static void azx_enter_link_reset(struct azx *chip)
{
unsigned long timeout;
/* reset controller */
azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
timeout = jiffies + msecs_to_jiffies(100);
while ((azx_readb(chip, GCTL) & ICH6_GCTL_RESET) &&
time_before(jiffies, timeout))
usleep_range(500, 1000);
}
/* exit link reset */
static void azx_exit_link_reset(struct azx *chip)
{
unsigned long timeout;
azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
timeout = jiffies + msecs_to_jiffies(100);
while (!azx_readb(chip, GCTL) &&
time_before(jiffies, timeout))
usleep_range(500, 1000);
}
/* reset codec link */
static int azx_reset(struct azx *chip, int full_reset)
{
if (!full_reset)
goto __skip;
/* clear STATESTS */
azx_writew(chip, STATESTS, STATESTS_INT_MASK);
/* reset controller */
azx_enter_link_reset(chip);
/* delay for >= 100us for codec PLL to settle per spec
* Rev 0.9 section 5.5.1
*/
usleep_range(500, 1000);
/* Bring controller out of reset */
azx_exit_link_reset(chip);
/* Brent Chartrand said to wait >= 540us for codecs to initialize */
usleep_range(1000, 1200);
__skip:
/* check to see if controller is ready */
if (!azx_readb(chip, GCTL)) {
dev_dbg(chip->card->dev, "azx_reset: controller not ready!\n");
return -EBUSY;
}
/* Accept unsolicited responses */
if (!chip->single_cmd)
azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
ICH6_GCTL_UNSOL);
/* detect codecs */
if (!chip->codec_mask) {
chip->codec_mask = azx_readw(chip, STATESTS);
dev_dbg(chip->card->dev, "codec_mask = 0x%x\n",
chip->codec_mask);
}
return 0;
}
/*
* Lowlevel interface
*/
/* enable interrupts */
static void azx_int_enable(struct azx *chip)
{
/* enable controller CIE and GIE */
azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
}
/* disable interrupts */
static void azx_int_disable(struct azx *chip)
{
int i;
/* disable interrupts in stream descriptor */
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_sd_writeb(chip, azx_dev, SD_CTL,
azx_sd_readb(chip, azx_dev, SD_CTL) &
~SD_INT_MASK);
}
/* disable SIE for all streams */
azx_writeb(chip, INTCTL, 0);
/* disable controller CIE and GIE */
azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
}
/* clear interrupts */
static void azx_int_clear(struct azx *chip)
{
int i;
/* clear stream status */
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_sd_writeb(chip, azx_dev, SD_STS, SD_INT_MASK);
}
/* clear STATESTS */
azx_writew(chip, STATESTS, STATESTS_INT_MASK);
/* clear rirb status */
azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
/* clear int status */
azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
}
/*
* reset and start the controller registers
*/
static void azx_init_chip(struct azx *chip, int full_reset)
{
if (chip->initialized)
return;
/* reset controller */
azx_reset(chip, full_reset);
/* initialize interrupts */
azx_int_clear(chip);
azx_int_enable(chip);
/* initialize the codec command I/O */
if (!chip->single_cmd)
azx_init_cmd_io(chip);
/* program the position buffer */
azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
chip->initialized = 1;
}
/*
* initialize the PCI registers
*/
/* update bits in a PCI register byte */
static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
unsigned char mask, unsigned char val)
{
unsigned char data;
pci_read_config_byte(pci, reg, &data);
data &= ~mask;
data |= (val & mask);
pci_write_config_byte(pci, reg, data);
}
static void azx_init_pci(struct azx *chip)
{
/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
* TCSEL == Traffic Class Select Register, which sets PCI express QOS
* Ensuring these bits are 0 clears playback static on some HD Audio
* codecs.
* The PCI register TCSEL is defined in the Intel manuals.
*/
if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
dev_dbg(chip->card->dev, "Clearing TCSEL\n");
update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
}
/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
* we need to enable snoop.
*/
if (chip->driver_caps & AZX_DCAPS_ATI_SNOOP) {
dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
azx_snoop(chip));
update_pci_byte(chip->pci,
ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
}
/* For NVIDIA HDA, enable snoop */
if (chip->driver_caps & AZX_DCAPS_NVIDIA_SNOOP) {
dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
azx_snoop(chip));
update_pci_byte(chip->pci,
NVIDIA_HDA_TRANSREG_ADDR,
0x0f, NVIDIA_HDA_ENABLE_COHBITS);
update_pci_byte(chip->pci,
NVIDIA_HDA_ISTRM_COH,
0x01, NVIDIA_HDA_ENABLE_COHBIT);
update_pci_byte(chip->pci,
NVIDIA_HDA_OSTRM_COH,
0x01, NVIDIA_HDA_ENABLE_COHBIT);
}
/* Enable SCH/PCH snoop if needed */
if (chip->driver_caps & AZX_DCAPS_SCH_SNOOP) {
unsigned short snoop;
pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
(azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
if (!azx_snoop(chip))
snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
pci_read_config_word(chip->pci,
INTEL_SCH_HDA_DEVC, &snoop);
}
dev_dbg(chip->card->dev, "SCH snoop: %s\n",
(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
"Disabled" : "Enabled");
}
}
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
/*
* interrupt handler
*/
static irqreturn_t azx_interrupt(int irq, void *dev_id)
{
struct azx *chip = dev_id;
struct azx_dev *azx_dev;
u32 status;
u8 sd_status;
int i, ok;
#ifdef CONFIG_PM_RUNTIME
if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
if (chip->card->dev->power.runtime_status != RPM_ACTIVE)
return IRQ_NONE;
#endif
spin_lock(&chip->reg_lock);
if (chip->disabled) {
spin_unlock(&chip->reg_lock);
return IRQ_NONE;
}
status = azx_readl(chip, INTSTS);
if (status == 0 || status == 0xffffffff) {
spin_unlock(&chip->reg_lock);
return IRQ_NONE;
}
for (i = 0; i < chip->num_streams; i++) {
azx_dev = &chip->azx_dev[i];
if (status & azx_dev->sd_int_sta_mask) {
sd_status = azx_sd_readb(chip, azx_dev, SD_STS);
azx_sd_writeb(chip, azx_dev, SD_STS, SD_INT_MASK);
if (!azx_dev->substream || !azx_dev->running ||
!(sd_status & SD_INT_COMPLETE))
continue;
/* check whether this IRQ is really acceptable */
ok = azx_position_ok(chip, azx_dev);
if (ok == 1) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
} else if (ok == 0 && chip->bus && chip->bus->workq) {
/* bogus IRQ, process it later */
azx_dev->irq_pending = 1;
queue_work(chip->bus->workq,
&chip->irq_pending_work);
}
}
}
/* clear rirb int */
status = azx_readb(chip, RIRBSTS);
if (status & RIRB_INT_MASK) {
if (status & RIRB_INT_RESPONSE) {
if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY)
udelay(80);
azx_update_rirb(chip);
}
azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
/*
* Probe the given codec address
*/
static int probe_codec(struct azx *chip, int addr)
{
unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
unsigned int res;
mutex_lock(&chip->bus->cmd_mutex);
chip->probing = 1;
azx_send_cmd(chip->bus, cmd);
res = azx_get_response(chip->bus, addr);
chip->probing = 0;
mutex_unlock(&chip->bus->cmd_mutex);
if (res == -1)
return -EIO;
dev_dbg(chip->card->dev, "codec #%d probed OK\n", addr);
return 0;
}
static void azx_stop_chip(struct azx *chip);
static void azx_bus_reset(struct hda_bus *bus)
{
struct azx *chip = bus->private_data;
bus->in_reset = 1;
azx_stop_chip(chip);
azx_init_chip(chip, 1);
#ifdef CONFIG_PM
if (chip->initialized) {
struct azx_pcm *p;
list_for_each_entry(p, &chip->pcm_list, list)
snd_pcm_suspend_all(p->pcm);
snd_hda_suspend(chip->bus);
snd_hda_resume(chip->bus);
}
#endif
bus->in_reset = 0;
}
static int get_jackpoll_interval(struct azx *chip)
{
int i;
unsigned int j;
if (!chip->jackpoll_ms)
return 0;
i = chip->jackpoll_ms[chip->dev_index];
if (i == 0)
return 0;
if (i < 50 || i > 60000)
j = 0;
else
j = msecs_to_jiffies(i);
if (j == 0)
dev_warn(chip->card->dev,
"jackpoll_ms value out of range: %d\n", i);
return j;
}
/*
* Codec initialization
*/
static int azx_codec_create(struct azx *chip, const char *model,
unsigned int max_slots,
int *power_save_to)
{
struct hda_bus_template bus_temp;
int c, codecs, err;
memset(&bus_temp, 0, sizeof(bus_temp));
bus_temp.private_data = chip;
bus_temp.modelname = model;
bus_temp.pci = chip->pci;
bus_temp.ops.command = azx_send_cmd;
bus_temp.ops.get_response = azx_get_response;
bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
bus_temp.ops.bus_reset = azx_bus_reset;
#ifdef CONFIG_PM
bus_temp.power_save = power_save_to;
bus_temp.ops.pm_notify = azx_power_notify;
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
bus_temp.ops.load_dsp_prepare = azx_load_dsp_prepare;
bus_temp.ops.load_dsp_trigger = azx_load_dsp_trigger;
bus_temp.ops.load_dsp_cleanup = azx_load_dsp_cleanup;
#endif
err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
if (err < 0)
return err;
if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
chip->bus->needs_damn_long_delay = 1;
}
codecs = 0;
if (!max_slots)
max_slots = AZX_DEFAULT_CODECS;
/* First try to probe all given codec slots */
for (c = 0; c < max_slots; c++) {
if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
if (probe_codec(chip, c) < 0) {
/* Some BIOSen give you wrong codec addresses
* that don't exist
*/
dev_warn(chip->card->dev,
"Codec #%d probe error; disabling it...\n", c);
chip->codec_mask &= ~(1 << c);
/* More badly, accessing to a non-existing
* codec often screws up the controller chip,
* and disturbs the further communications.
* Thus if an error occurs during probing,
* better to reset the controller chip to
* get back to the sanity state.
*/
azx_stop_chip(chip);
azx_init_chip(chip, 1);
}
}
}
/* AMD chipsets often cause the communication stalls upon certain
* sequence like the pin-detection. It seems that forcing the synced
* access works around the stall. Grrr...
*/
if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
chip->bus->sync_write = 1;
chip->bus->allow_bus_reset = 1;
}
/* Then create codec instances */
for (c = 0; c < max_slots; c++) {
if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
struct hda_codec *codec;
err = snd_hda_codec_new(chip->bus, c, &codec);
if (err < 0)
continue;
codec->jackpoll_interval = get_jackpoll_interval(chip);
codec->beep_mode = chip->beep_mode;
codecs++;
}
}
if (!codecs) {
dev_err(chip->card->dev, "no codecs initialized\n");
return -ENXIO;
}
return 0;
}
/* configure each codec instance */
static int azx_codec_configure(struct azx *chip)
{
struct hda_codec *codec;
list_for_each_entry(codec, &chip->bus->codec_list, list) {
snd_hda_codec_configure(codec);
}
return 0;
}
/*
* Check whether the current DMA position is acceptable for updating
* periods. Returns non-zero if it's OK.
*
* Many HD-audio controllers appear pretty inaccurate about
* the update-IRQ timing. The IRQ is issued before actually the
* data is processed. So, we need to process it afterwords in a
* workqueue.
*/
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
{
u32 wallclk;
unsigned int pos;
wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
if (wallclk < (azx_dev->period_wallclk * 2) / 3)
return -1; /* bogus (too early) interrupt */
pos = azx_get_position(chip, azx_dev, true);
if (WARN_ONCE(!azx_dev->period_bytes,
"hda-intel: zero azx_dev->period_bytes"))
return -1; /* this shouldn't happen! */
if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
/* NG - it's below the first next period boundary */
return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
azx_dev->start_wallclk += wallclk;
return 1; /* OK, it's fine */
}
/*
* The work for pending PCM period updates.
*/
static void azx_irq_pending_work(struct work_struct *work)
{
struct azx *chip = container_of(work, struct azx, irq_pending_work);
int i, pending, ok;
if (!chip->irq_pending_warned) {
dev_info(chip->card->dev,
"IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
chip->card->number);
chip->irq_pending_warned = 1;
}
for (;;) {
pending = 0;
spin_lock_irq(&chip->reg_lock);
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
if (!azx_dev->irq_pending ||
!azx_dev->substream ||
!azx_dev->running)
continue;
ok = azx_position_ok(chip, azx_dev);
if (ok > 0) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
} else if (ok < 0) {
pending = 0; /* too early */
} else
pending++;
}
spin_unlock_irq(&chip->reg_lock);
if (!pending)
return;
msleep(1);
}
}
/* clear irq_pending flags and assure no on-going workq */
static void azx_clear_irq_pending(struct azx *chip)
{
int i;
spin_lock_irq(&chip->reg_lock);
for (i = 0; i < chip->num_streams; i++)
chip->azx_dev[i].irq_pending = 0;
spin_unlock_irq(&chip->reg_lock);
}
/*
* mixer creation - all stuff is implemented in hda module
*/
static int azx_mixer_create(struct azx *chip)
{
return snd_hda_build_controls(chip->bus);
}
/*
* initialize SD streams
*/
static int azx_init_stream(struct azx *chip)
{
int i;
/* initialize each stream (aka device)
* assign the starting bdl address to each stream (device)
* and initialize
*/
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
/* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
/* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
azx_dev->sd_int_sta_mask = 1 << i;
/* stream tag: must be non-zero and unique */
azx_dev->index = i;
azx_dev->stream_tag = i + 1;
}
return 0;
}
static int azx_acquire_irq(struct azx *chip, int do_disconnect)
{
if (request_irq(chip->pci->irq, azx_interrupt,
chip->msi ? 0 : IRQF_SHARED,
KBUILD_MODNAME, chip)) {
dev_err(chip->card->dev,
"unable to grab IRQ %d, disabling device\n",
chip->pci->irq);
if (do_disconnect)
snd_card_disconnect(chip->card);
return -1;
}
chip->irq = chip->pci->irq;
pci_intx(chip->pci, !chip->msi);
return 0;
}
static void azx_stop_chip(struct azx *chip)
{
if (!chip->initialized)
return;
/* disable interrupts */
azx_int_disable(chip);
azx_int_clear(chip);
/* disable CORB/RIRB */
azx_free_cmd_io(chip);
/* disable position buffer */
azx_writel(chip, DPLBASE, 0);
azx_writel(chip, DPUBASE, 0);
chip->initialized = 0;
}
#ifdef CONFIG_PM
/* power-up/down the controller */
static void azx_power_notify(struct hda_bus *bus, bool power_up)
{
struct azx *chip = bus->private_data;
if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
return;
if (power_up)
pm_runtime_get_sync(chip->card->dev);
else
pm_runtime_put_sync(chip->card->dev);
}
static DEFINE_MUTEX(card_list_lock);
static LIST_HEAD(card_list);
static void azx_add_card_list(struct azx *chip)
{
mutex_lock(&card_list_lock);
list_add(&chip->list, &card_list);
mutex_unlock(&card_list_lock);
}
static void azx_del_card_list(struct azx *chip)
{
mutex_lock(&card_list_lock);
list_del_init(&chip->list);
mutex_unlock(&card_list_lock);
}
/* trigger power-save check at writing parameter */
static int param_set_xint(const char *val, const struct kernel_param *kp)
{
struct azx *chip;
struct hda_codec *c;
int prev = power_save;
int ret = param_set_int(val, kp);
if (ret || prev == power_save)
return ret;
mutex_lock(&card_list_lock);
list_for_each_entry(chip, &card_list, list) {
if (!chip->bus || chip->disabled)
continue;
list_for_each_entry(c, &chip->bus->codec_list, list)
snd_hda_power_sync(c);
}
mutex_unlock(&card_list_lock);
return 0;
}
#else
#define azx_add_card_list(chip) /* NOP */
#define azx_del_card_list(chip) /* NOP */
#endif /* CONFIG_PM */
#if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
/*
* power management
*/
static int azx_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct azx_pcm *p;
if (chip->disabled)
return 0;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
azx_clear_irq_pending(chip);
list_for_each_entry(p, &chip->pcm_list, list)
snd_pcm_suspend_all(p->pcm);
if (chip->initialized)
snd_hda_suspend(chip->bus);
azx_stop_chip(chip);
azx_enter_link_reset(chip);
if (chip->irq >= 0) {
free_irq(chip->irq, chip);
chip->irq = -1;
}
if (chip->msi)
pci_disable_msi(chip->pci);
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, PCI_D3hot);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(false);
return 0;
}
static int azx_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
if (chip->disabled)
return 0;
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(true);
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
dev_err(chip->card->dev,
"pci_enable_device failed, disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
if (chip->msi)
if (pci_enable_msi(pci) < 0)
chip->msi = 0;
if (azx_acquire_irq(chip, 1) < 0)
return -EIO;
azx_init_pci(chip);
azx_init_chip(chip, 1);
snd_hda_resume(chip->bus);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
#ifdef CONFIG_PM_RUNTIME
static int azx_runtime_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
if (chip->disabled)
return 0;
if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
return 0;
/* enable controller wake up event */
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
STATESTS_INT_MASK);
azx_stop_chip(chip);
azx_enter_link_reset(chip);
azx_clear_irq_pending(chip);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(false);
return 0;
}
static int azx_runtime_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct hda_bus *bus;
struct hda_codec *codec;
int status;
if (chip->disabled)
return 0;
if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
return 0;
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(true);
/* Read STATESTS before controller reset */
status = azx_readw(chip, STATESTS);
azx_init_pci(chip);
azx_init_chip(chip, 1);
bus = chip->bus;
if (status && bus) {
list_for_each_entry(codec, &bus->codec_list, list)
if (status & (1 << codec->addr))
queue_delayed_work(codec->bus->workq,
&codec->jackpoll_work, codec->jackpoll_interval);
}
/* disable controller Wake Up event*/
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
~STATESTS_INT_MASK);
return 0;
}
static int azx_runtime_idle(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
if (chip->disabled)
return 0;
if (!power_save_controller ||
!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
return -EBUSY;
return 0;
}
#endif /* CONFIG_PM_RUNTIME */
#ifdef CONFIG_PM
static const struct dev_pm_ops azx_pm = {
SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
};
#define AZX_PM_OPS &azx_pm
#else
#define AZX_PM_OPS NULL
#endif /* CONFIG_PM */
/*
* reboot notifier for hang-up problem at power-down
*/
static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
{
struct azx *chip = container_of(nb, struct azx, reboot_notifier);
snd_hda_bus_reboot_notify(chip->bus);
azx_stop_chip(chip);
return NOTIFY_OK;
}
static void azx_notifier_register(struct azx *chip)
{
chip->reboot_notifier.notifier_call = azx_halt;
register_reboot_notifier(&chip->reboot_notifier);
}
static void azx_notifier_unregister(struct azx *chip)
{
if (chip->reboot_notifier.notifier_call)
unregister_reboot_notifier(&chip->reboot_notifier);
}
static int azx_probe_continue(struct azx *chip);
#ifdef SUPPORT_VGA_SWITCHEROO
static struct pci_dev *get_bound_vga(struct pci_dev *pci);
static void azx_vs_set_state(struct pci_dev *pci,
enum vga_switcheroo_state state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
bool disabled;
wait_for_completion(&chip->probe_wait);
if (chip->init_failed)
return;
disabled = (state == VGA_SWITCHEROO_OFF);
if (chip->disabled == disabled)
return;
if (!chip->bus) {
chip->disabled = disabled;
if (!disabled) {
dev_info(chip->card->dev,
"Start delayed initialization\n");
if (azx_probe_continue(chip) < 0) {
dev_err(chip->card->dev, "initialization error\n");
chip->init_failed = true;
}
}
} else {
dev_info(chip->card->dev, "%s via VGA-switcheroo\n",
disabled ? "Disabling" : "Enabling");
if (disabled) {
pm_runtime_put_sync_suspend(card->dev);
azx_suspend(card->dev);
/* when we get suspended by vga switcheroo we end up in D3cold,
* however we have no ACPI handle, so pci/acpi can't put us there,
* put ourselves there */
pci->current_state = PCI_D3cold;
chip->disabled = true;
if (snd_hda_lock_devices(chip->bus))
dev_warn(chip->card->dev,
"Cannot lock devices!\n");
} else {
snd_hda_unlock_devices(chip->bus);
pm_runtime_get_noresume(card->dev);
chip->disabled = false;
azx_resume(card->dev);
}
}
}
static bool azx_vs_can_switch(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
wait_for_completion(&chip->probe_wait);
if (chip->init_failed)
return false;
if (chip->disabled || !chip->bus)
return true;
if (snd_hda_lock_devices(chip->bus))
return false;
snd_hda_unlock_devices(chip->bus);
return true;
}
static void init_vga_switcheroo(struct azx *chip)
{
struct pci_dev *p = get_bound_vga(chip->pci);
if (p) {
dev_info(chip->card->dev,
"Handle VGA-switcheroo audio client\n");
chip->use_vga_switcheroo = 1;
pci_dev_put(p);
}
}
static const struct vga_switcheroo_client_ops azx_vs_ops = {
.set_gpu_state = azx_vs_set_state,
.can_switch = azx_vs_can_switch,
};
static int register_vga_switcheroo(struct azx *chip)
{
int err;
if (!chip->use_vga_switcheroo)
return 0;
/* FIXME: currently only handling DIS controller
* is there any machine with two switchable HDMI audio controllers?
*/
err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
VGA_SWITCHEROO_DIS,
chip->bus != NULL);
if (err < 0)
return err;
chip->vga_switcheroo_registered = 1;
/* register as an optimus hdmi audio power domain */
vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
&chip->hdmi_pm_domain);
return 0;
}
#else
#define init_vga_switcheroo(chip) /* NOP */
#define register_vga_switcheroo(chip) 0
#define check_hdmi_disabled(pci) false
#endif /* SUPPORT_VGA_SWITCHER */
/*
* destructor
*/
static int azx_free(struct azx *chip)
{
struct pci_dev *pci = chip->pci;
int i;
if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
&& chip->running)
pm_runtime_get_noresume(&pci->dev);
azx_del_card_list(chip);
azx_notifier_unregister(chip);
chip->init_failed = 1; /* to be sure */
complete_all(&chip->probe_wait);
if (use_vga_switcheroo(chip)) {
if (chip->disabled && chip->bus)
snd_hda_unlock_devices(chip->bus);
if (chip->vga_switcheroo_registered)
vga_switcheroo_unregister_client(chip->pci);
}
if (chip->initialized) {
azx_clear_irq_pending(chip);
for (i = 0; i < chip->num_streams; i++)
azx_stream_stop(chip, &chip->azx_dev[i]);
azx_stop_chip(chip);
}
if (chip->irq >= 0)
free_irq(chip->irq, (void*)chip);
if (chip->msi)
pci_disable_msi(chip->pci);
if (chip->remap_addr)
iounmap(chip->remap_addr);
azx_free_stream_pages(chip);
if (chip->region_requested)
pci_release_regions(chip->pci);
pci_disable_device(chip->pci);
kfree(chip->azx_dev);
#ifdef CONFIG_SND_HDA_PATCH_LOADER
if (chip->fw)
release_firmware(chip->fw);
#endif
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
hda_display_power(false);
hda_i915_exit();
}
kfree(chip);
return 0;
}
static int azx_dev_free(struct snd_device *device)
{
return azx_free(device->device_data);
}
#ifdef SUPPORT_VGA_SWITCHEROO
/*
* Check of disabled HDMI controller by vga-switcheroo
*/
static struct pci_dev *get_bound_vga(struct pci_dev *pci)
{
struct pci_dev *p;
/* check only discrete GPU */
switch (pci->vendor) {
case PCI_VENDOR_ID_ATI:
case PCI_VENDOR_ID_AMD:
case PCI_VENDOR_ID_NVIDIA:
if (pci->devfn == 1) {
p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
pci->bus->number, 0);
if (p) {
if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
return p;
pci_dev_put(p);
}
}
break;
}
return NULL;
}
static bool check_hdmi_disabled(struct pci_dev *pci)
{
bool vga_inactive = false;
struct pci_dev *p = get_bound_vga(pci);
if (p) {
if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
vga_inactive = true;
pci_dev_put(p);
}
return vga_inactive;
}
#endif /* SUPPORT_VGA_SWITCHEROO */
/*
* white/black-listing for position_fix
*/
static struct snd_pci_quirk position_fix_list[] = {
SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
{}
};
static int check_position_fix(struct azx *chip, int fix)
{
const struct snd_pci_quirk *q;
switch (fix) {
case POS_FIX_AUTO:
case POS_FIX_LPIB:
case POS_FIX_POSBUF:
case POS_FIX_VIACOMBO:
case POS_FIX_COMBO:
return fix;
}
q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
if (q) {
dev_info(chip->card->dev,
"position_fix set to %d for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
return q->value;
}
/* Check VIA/ATI HD Audio Controller exist */
if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
return POS_FIX_VIACOMBO;
}
if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
dev_dbg(chip->card->dev, "Using LPIB position fix\n");
return POS_FIX_LPIB;
}
return POS_FIX_AUTO;
}
/*
* black-lists for probe_mask
*/
static struct snd_pci_quirk probe_mask_list[] = {
/* Thinkpad often breaks the controller communication when accessing
* to the non-working (or non-existing) modem codec slot.
*/
SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
/* broken BIOS */
SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
/* forced codec slots */
SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
/* WinFast VP200 H (Teradici) user reported broken communication */
SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
{}
};
#define AZX_FORCE_CODEC_MASK 0x100
static void check_probe_mask(struct azx *chip, int dev)
{
const struct snd_pci_quirk *q;
chip->codec_probe_mask = probe_mask[dev];
if (chip->codec_probe_mask == -1) {
q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
if (q) {
dev_info(chip->card->dev,
"probe_mask set to 0x%x for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
chip->codec_probe_mask = q->value;
}
}
/* check forced option */
if (chip->codec_probe_mask != -1 &&
(chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
chip->codec_mask = chip->codec_probe_mask & 0xff;
dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
chip->codec_mask);
}
}
/*
* white/black-list for enable_msi
*/
static struct snd_pci_quirk msi_black_list[] = {
SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
{}
};
static void check_msi(struct azx *chip)
{
const struct snd_pci_quirk *q;
if (enable_msi >= 0) {
chip->msi = !!enable_msi;
return;
}
chip->msi = 1; /* enable MSI as default */
q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
if (q) {
dev_info(chip->card->dev,
"msi for device %04x:%04x set to %d\n",
q->subvendor, q->subdevice, q->value);
chip->msi = q->value;
return;
}
/* NVidia chipsets seem to cause troubles with MSI */
if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
dev_info(chip->card->dev, "Disabling MSI\n");
chip->msi = 0;
}
}
/* check the snoop mode availability */
static void azx_check_snoop_available(struct azx *chip)
{
bool snoop = chip->snoop;
switch (chip->driver_type) {
case AZX_DRIVER_VIA:
/* force to non-snoop mode for a new VIA controller
* when BIOS is set
*/
if (snoop) {
u8 val;
pci_read_config_byte(chip->pci, 0x42, &val);
if (!(val & 0x80) && chip->pci->revision == 0x30)
snoop = false;
}
break;
case AZX_DRIVER_ATIHDMI_NS:
/* new ATI HDMI requires non-snoop */
snoop = false;
break;
case AZX_DRIVER_CTHDA:
snoop = false;
break;
}
if (snoop != chip->snoop) {
dev_info(chip->card->dev, "Force to %s mode\n",
snoop ? "snoop" : "non-snoop");
chip->snoop = snoop;
}
}
static void azx_probe_work(struct work_struct *work)
{
azx_probe_continue(container_of(work, struct azx, probe_work));
}
/*
* constructor
*/
static int azx_create(struct snd_card *card, struct pci_dev *pci,
int dev, unsigned int driver_caps,
const struct hda_controller_ops *hda_ops,
struct azx **rchip)
{
static struct snd_device_ops ops = {
.dev_free = azx_dev_free,
};
struct azx *chip;
int err;
*rchip = NULL;
err = pci_enable_device(pci);
if (err < 0)
return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (!chip) {
dev_err(card->dev, "Cannot allocate chip\n");
pci_disable_device(pci);
return -ENOMEM;
}
spin_lock_init(&chip->reg_lock);
mutex_init(&chip->open_mutex);
chip->card = card;
chip->pci = pci;
chip->ops = hda_ops;
chip->irq = -1;
chip->driver_caps = driver_caps;
chip->driver_type = driver_caps & 0xff;
check_msi(chip);
chip->dev_index = dev;
chip->jackpoll_ms = jackpoll_ms;
INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
INIT_LIST_HEAD(&chip->pcm_list);
INIT_LIST_HEAD(&chip->list);
init_vga_switcheroo(chip);
init_completion(&chip->probe_wait);
chip->position_fix[0] = chip->position_fix[1] =
check_position_fix(chip, position_fix[dev]);
/* combo mode uses LPIB for playback */
if (chip->position_fix[0] == POS_FIX_COMBO) {
chip->position_fix[0] = POS_FIX_LPIB;
chip->position_fix[1] = POS_FIX_AUTO;
}
check_probe_mask(chip, dev);
chip->single_cmd = single_cmd;
chip->snoop = hda_snoop;
azx_check_snoop_available(chip);
if (bdl_pos_adj[dev] < 0) {
switch (chip->driver_type) {
case AZX_DRIVER_ICH:
case AZX_DRIVER_PCH:
bdl_pos_adj[dev] = 1;
break;
default:
bdl_pos_adj[dev] = 32;
break;
}
}
chip->bdl_pos_adj = bdl_pos_adj;
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err < 0) {
dev_err(card->dev, "Error creating device [card]!\n");
azx_free(chip);
return err;
}
/* continue probing in work context as may trigger request module */
INIT_WORK(&chip->probe_work, azx_probe_work);
*rchip = chip;
return 0;
}
static int azx_first_init(struct azx *chip)
{
int dev = chip->dev_index;
struct pci_dev *pci = chip->pci;
struct snd_card *card = chip->card;
int err;
unsigned short gcap;
#if BITS_PER_LONG != 64
/* Fix up base address on ULI M5461 */
if (chip->driver_type == AZX_DRIVER_ULI) {
u16 tmp3;
pci_read_config_word(pci, 0x40, &tmp3);
pci_write_config_word(pci, 0x40, tmp3 | 0x10);
pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
}
#endif
err = pci_request_regions(pci, "ICH HD audio");
if (err < 0)
return err;
chip->region_requested = 1;
chip->addr = pci_resource_start(pci, 0);
chip->remap_addr = pci_ioremap_bar(pci, 0);
if (chip->remap_addr == NULL) {
dev_err(card->dev, "ioremap error\n");
return -ENXIO;
}
if (chip->msi)
if (pci_enable_msi(pci) < 0)
chip->msi = 0;
if (azx_acquire_irq(chip, 0) < 0)
return -EBUSY;
pci_set_master(pci);
synchronize_irq(chip->irq);
gcap = azx_readw(chip, GCAP);
dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
/* disable SB600 64bit support for safety */
if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
struct pci_dev *p_smbus;
p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
PCI_DEVICE_ID_ATI_SBX00_SMBUS,
NULL);
if (p_smbus) {
if (p_smbus->revision < 0x30)
gcap &= ~ICH6_GCAP_64OK;
pci_dev_put(p_smbus);
}
}
/* disable 64bit DMA address on some devices */
if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
dev_dbg(card->dev, "Disabling 64bit DMA\n");
gcap &= ~ICH6_GCAP_64OK;
}
/* disable buffer size rounding to 128-byte multiples if supported */
if (align_buffer_size >= 0)
chip->align_buffer_size = !!align_buffer_size;
else {
if (chip->driver_caps & AZX_DCAPS_BUFSIZE)
chip->align_buffer_size = 0;
else if (chip->driver_caps & AZX_DCAPS_ALIGN_BUFSIZE)
chip->align_buffer_size = 1;
else
chip->align_buffer_size = 1;
}
/* allow 64bit DMA address if supported by H/W */
if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
else {
pci_set_dma_mask(pci, DMA_BIT_MASK(32));
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
}
/* read number of streams from GCAP register instead of using
* hardcoded value
*/
chip->capture_streams = (gcap >> 8) & 0x0f;
chip->playback_streams = (gcap >> 12) & 0x0f;
if (!chip->playback_streams && !chip->capture_streams) {
/* gcap didn't give any info, switching to old method */
switch (chip->driver_type) {
case AZX_DRIVER_ULI:
chip->playback_streams = ULI_NUM_PLAYBACK;
chip->capture_streams = ULI_NUM_CAPTURE;
break;
case AZX_DRIVER_ATIHDMI:
case AZX_DRIVER_ATIHDMI_NS:
chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
chip->capture_streams = ATIHDMI_NUM_CAPTURE;
break;
case AZX_DRIVER_GENERIC:
default:
chip->playback_streams = ICH6_NUM_PLAYBACK;
chip->capture_streams = ICH6_NUM_CAPTURE;
break;
}
}
chip->capture_index_offset = 0;
chip->playback_index_offset = chip->capture_streams;
chip->num_streams = chip->playback_streams + chip->capture_streams;
chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
GFP_KERNEL);
if (!chip->azx_dev) {
dev_err(card->dev, "cannot malloc azx_dev\n");
return -ENOMEM;
}
err = azx_alloc_stream_pages(chip);
if (err < 0)
return err;
/* allocate CORB/RIRB */
err = azx_alloc_cmd_io(chip);
if (err < 0)
return err;
/* initialize streams */
azx_init_stream(chip);
/* initialize chip */
azx_init_pci(chip);
azx_init_chip(chip, (probe_only[dev] & 2) == 0);
/* codec detection */
if (!chip->codec_mask) {
dev_err(card->dev, "no codecs found!\n");
return -ENODEV;
}
strcpy(card->driver, "HDA-Intel");
strlcpy(card->shortname, driver_short_names[chip->driver_type],
sizeof(card->shortname));
snprintf(card->longname, sizeof(card->longname),
"%s at 0x%lx irq %i",
card->shortname, chip->addr, chip->irq);
return 0;
}
static void power_down_all_codecs(struct azx *chip)
{
#ifdef CONFIG_PM
/* The codecs were powered up in snd_hda_codec_new().
* Now all initialization done, so turn them down if possible
*/
struct hda_codec *codec;
list_for_each_entry(codec, &chip->bus->codec_list, list) {
snd_hda_power_down(codec);
}
#endif
}
#ifdef CONFIG_SND_HDA_PATCH_LOADER
/* callback from request_firmware_nowait() */
static void azx_firmware_cb(const struct firmware *fw, void *context)
{
struct snd_card *card = context;
struct azx *chip = card->private_data;
struct pci_dev *pci = chip->pci;
if (!fw) {
dev_err(card->dev, "Cannot load firmware, aborting\n");
goto error;
}
chip->fw = fw;
if (!chip->disabled) {
/* continue probing */
if (azx_probe_continue(chip))
goto error;
}
return; /* OK */
error:
snd_card_free(card);
pci_set_drvdata(pci, NULL);
}
#endif
/*
* HDA controller ops.
*/
/* PCI register access. */
static void pci_azx_writel(u32 value, u32 *addr)
{
writel(value, addr);
}
static u32 pci_azx_readl(u32 *addr)
{
return readl(addr);
}
static void pci_azx_writew(u16 value, u16 *addr)
{
writew(value, addr);
}
static u16 pci_azx_readw(u16 *addr)
{
return readw(addr);
}
static void pci_azx_writeb(u8 value, u8 *addr)
{
writeb(value, addr);
}
static u8 pci_azx_readb(u8 *addr)
{
return readb(addr);
}
static int disable_msi_reset_irq(struct azx *chip)
{
int err;
free_irq(chip->irq, chip);
chip->irq = -1;
pci_disable_msi(chip->pci);
chip->msi = 0;
err = azx_acquire_irq(chip, 1);
if (err < 0)
return err;
return 0;
}
/* DMA page allocation helpers. */
static int dma_alloc_pages(struct azx *chip,
int type,
size_t size,
struct snd_dma_buffer *buf)
{
int err;
err = snd_dma_alloc_pages(type,
chip->card->dev,
size, buf);
if (err < 0)
return err;
mark_pages_wc(chip, buf, true);
return 0;
}
static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
{
mark_pages_wc(chip, buf, false);
snd_dma_free_pages(buf);
}
static int substream_alloc_pages(struct azx *chip,
struct snd_pcm_substream *substream,
size_t size)
{
struct azx_dev *azx_dev = get_azx_dev(substream);
int ret;
mark_runtime_wc(chip, azx_dev, substream, false);
azx_dev->bufsize = 0;
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
ret = snd_pcm_lib_malloc_pages(substream, size);
if (ret < 0)
return ret;
mark_runtime_wc(chip, azx_dev, substream, true);
return 0;
}
static int substream_free_pages(struct azx *chip,
struct snd_pcm_substream *substream)
{
struct azx_dev *azx_dev = get_azx_dev(substream);
mark_runtime_wc(chip, azx_dev, substream, false);
return snd_pcm_lib_free_pages(substream);
}
static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
struct vm_area_struct *area)
{
#ifdef CONFIG_X86
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx *chip = apcm->chip;
if (!azx_snoop(chip))
area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
#endif
}
static const struct hda_controller_ops pci_hda_ops = {
.writel = pci_azx_writel,
.readl = pci_azx_readl,
.writew = pci_azx_writew,
.readw = pci_azx_readw,
.writeb = pci_azx_writeb,
.readb = pci_azx_readb,
.disable_msi_reset_irq = disable_msi_reset_irq,
.dma_alloc_pages = dma_alloc_pages,
.dma_free_pages = dma_free_pages,
.substream_alloc_pages = substream_alloc_pages,
.substream_free_pages = substream_free_pages,
.pcm_mmap_prepare = pcm_mmap_prepare,
};
static int azx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct azx *chip;
bool schedule_probe;
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) {
dev_err(&pci->dev, "Error creating card!\n");
return err;
}
err = azx_create(card, pci, dev, pci_id->driver_data,
&pci_hda_ops, &chip);
if (err < 0)
goto out_free;
card->private_data = chip;
pci_set_drvdata(pci, card);
err = register_vga_switcheroo(chip);
if (err < 0) {
dev_err(card->dev, "Error registering VGA-switcheroo client\n");
goto out_free;
}
if (check_hdmi_disabled(pci)) {
dev_info(card->dev, "VGA controller is disabled\n");
dev_info(card->dev, "Delaying initialization\n");
chip->disabled = true;
}
schedule_probe = !chip->disabled;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
if (patch[dev] && *patch[dev]) {
dev_info(card->dev, "Applying patch firmware '%s'\n",
patch[dev]);
err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
&pci->dev, GFP_KERNEL, card,
azx_firmware_cb);
if (err < 0)
goto out_free;
schedule_probe = false; /* continued in azx_firmware_cb() */
}
#endif /* CONFIG_SND_HDA_PATCH_LOADER */
#ifndef CONFIG_SND_HDA_I915
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
#endif
if (schedule_probe)
schedule_work(&chip->probe_work);
dev++;
if (chip->disabled)
complete_all(&chip->probe_wait);
return 0;
out_free:
snd_card_free(card);
return err;
}
/* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
[AZX_DRIVER_NVIDIA] = 8,
[AZX_DRIVER_TERA] = 1,
};
static int azx_probe_continue(struct azx *chip)
{
struct pci_dev *pci = chip->pci;
int dev = chip->dev_index;
int err;
/* Request power well for Haswell HDA controller and codec */
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
#ifdef CONFIG_SND_HDA_I915
err = hda_i915_init();
if (err < 0) {
dev_err(chip->card->dev,
"Error request power-well from i915\n");
goto out_free;
}
#endif
hda_display_power(true);
}
err = azx_first_init(chip);
if (err < 0)
goto out_free;
#ifdef CONFIG_SND_HDA_INPUT_BEEP
chip->beep_mode = beep_mode[dev];
#endif
/* create codec instances */
err = azx_codec_create(chip, model[dev],
azx_max_codecs[chip->driver_type],
power_save_addr);
if (err < 0)
goto out_free;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
if (chip->fw) {
err = snd_hda_load_patch(chip->bus, chip->fw->size,
chip->fw->data);
if (err < 0)
goto out_free;
#ifndef CONFIG_PM
release_firmware(chip->fw); /* no longer needed */
chip->fw = NULL;
#endif
}
#endif
if ((probe_only[dev] & 1) == 0) {
err = azx_codec_configure(chip);
if (err < 0)
goto out_free;
}
/* create PCM streams */
err = snd_hda_build_pcms(chip->bus);
if (err < 0)
goto out_free;
/* create mixer controls */
err = azx_mixer_create(chip);
if (err < 0)
goto out_free;
err = snd_card_register(chip->card);
if (err < 0)
goto out_free;
chip->running = 1;
power_down_all_codecs(chip);
azx_notifier_register(chip);
azx_add_card_list(chip);
if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) || chip->use_vga_switcheroo)
pm_runtime_put_noidle(&pci->dev);
out_free:
if (err < 0)
chip->init_failed = 1;
complete_all(&chip->probe_wait);
return err;
}
static void azx_remove(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
if (card)
snd_card_free(card);
}
/* PCI IDs */
static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
/* CPT */
{ PCI_DEVICE(0x8086, 0x1c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* PBG */
{ PCI_DEVICE(0x8086, 0x1d20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Panther Point */
{ PCI_DEVICE(0x8086, 0x1e20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Lynx Point */
{ PCI_DEVICE(0x8086, 0x8c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Wellsburg */
{ PCI_DEVICE(0x8086, 0x8d20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
{ PCI_DEVICE(0x8086, 0x8d21),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Lynx Point-LP */
{ PCI_DEVICE(0x8086, 0x9c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Lynx Point-LP */
{ PCI_DEVICE(0x8086, 0x9c21),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Wildcat Point-LP */
{ PCI_DEVICE(0x8086, 0x9ca0),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
/* Haswell */
{ PCI_DEVICE(0x8086, 0x0a0c),
.driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
{ PCI_DEVICE(0x8086, 0x0c0c),
.driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
{ PCI_DEVICE(0x8086, 0x0d0c),
.driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
/* Broadwell */
{ PCI_DEVICE(0x8086, 0x160c),
.driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
/* 5 Series/3400 */
{ PCI_DEVICE(0x8086, 0x3b56),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Poulsbo */
{ PCI_DEVICE(0x8086, 0x811b),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Oaktrail */
{ PCI_DEVICE(0x8086, 0x080a),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* BayTrail */
{ PCI_DEVICE(0x8086, 0x0f04),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* ICH */
{ PCI_DEVICE(0x8086, 0x2668),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH6 */
{ PCI_DEVICE(0x8086, 0x27d8),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH7 */
{ PCI_DEVICE(0x8086, 0x269a),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ESB2 */
{ PCI_DEVICE(0x8086, 0x284b),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH8 */
{ PCI_DEVICE(0x8086, 0x293e),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH9 */
{ PCI_DEVICE(0x8086, 0x293f),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH9 */
{ PCI_DEVICE(0x8086, 0x3a3e),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH10 */
{ PCI_DEVICE(0x8086, 0x3a6e),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH10 */
/* Generic Intel */
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_BUFSIZE },
/* ATI SB 450/600/700/800/900 */
{ PCI_DEVICE(0x1002, 0x437b),
.driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
{ PCI_DEVICE(0x1002, 0x4383),
.driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
/* AMD Hudson */
{ PCI_DEVICE(0x1022, 0x780d),
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
/* ATI HDMI */
{ PCI_DEVICE(0x1002, 0x793b),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0x7919),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0x960f),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0x970f),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa00),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa08),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa10),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa18),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa20),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa28),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa30),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa38),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa40),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa48),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa50),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa58),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa60),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa68),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa80),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa88),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa90),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaa98),
.driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0x9902),
.driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaaa0),
.driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaaa8),
.driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(0x1002, 0xaab0),
.driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
/* VIA VT8251/VT8237A */
{ PCI_DEVICE(0x1106, 0x3288),
.driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
/* VIA GFX VT7122/VX900 */
{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
/* VIA GFX VT6122/VX11 */
{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
/* SIS966 */
{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
/* ULI M5461 */
{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
/* NVIDIA MCP */
{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
/* Teradici */
{ PCI_DEVICE(0x6549, 0x1200),
.driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
{ PCI_DEVICE(0x6549, 0x2200),
.driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
/* Creative X-Fi (CA0110-IBG) */
/* CTHDA chips */
{ PCI_DEVICE(0x1102, 0x0010),
.driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
{ PCI_DEVICE(0x1102, 0x0012),
.driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
#if !IS_ENABLED(CONFIG_SND_CTXFI)
/* the following entry conflicts with snd-ctxfi driver,
* as ctxfi driver mutates from HD-audio to native mode with
* a special command sequence.
*/
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
#else
/* this entry seems still valid -- i.e. without emu20kx chip */
{ PCI_DEVICE(0x1102, 0x0009),
.driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
#endif
/* Vortex86MX */
{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
/* VMware HDAudio */
{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, azx_ids);
/* pci_driver definition */
static struct pci_driver azx_driver = {
.name = KBUILD_MODNAME,
.id_table = azx_ids,
.probe = azx_probe,
.remove = azx_remove,
.driver = {
.pm = AZX_PM_OPS,
},
};
module_pci_driver(azx_driver);
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