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ALSA: x86: Rearrange defines 

We have two header files and everything is mixed up chaotically.
Move the chip-specific definitions like the hardware registers to
intel_hdmi_lpe_audio.h, and the rest, the implementation specific
stuff into intel_hdmi_audio.h.

In addition, put some more comments to the register fields, and fix
the incorrect name prefix for AUD_HDMI_STATUS bits, too.

The whole changes are merely a code shuffling, and there is no
functional change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-02-07 12:17:23 +01:00
parent 1df989242d
commit 77531beeb9
3 changed files with 83 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sound/x86/intel_hdmi_audio.c
View File

@ -252,7 +252,8 @@ static void had_ack_irqs(struct snd_intelhad *ctx)
/* Reset buffer pointers */
static void had_reset_audio(struct snd_intelhad *intelhaddata)
{
had_write_register(intelhaddata, AUD_HDMI_STATUS, 1);
had_write_register(intelhaddata, AUD_HDMI_STATUS,
AUD_HDMI_STATUSG_MASK_FUNCRST);
had_write_register(intelhaddata, AUD_HDMI_STATUS, 0);
}
@ -989,7 +990,7 @@ static void wait_clear_underrun_bit(struct snd_intelhad *intelhaddata)
for (i = 0; i < MAX_CNT; i++) {
/* clear bit30, 31 AUD_HDMI_STATUS */
had_read_register(intelhaddata, AUD_HDMI_STATUS, &val);
if (!(val & AUD_CONFIG_MASK_UNDERRUN))
if (!(val & AUD_HDMI_STATUS_MASK_UNDERRUN))
return;
had_write_register(intelhaddata, AUD_HDMI_STATUS, val);
}

64
sound/x86/intel_hdmi_audio.h
View File

@ -35,32 +35,50 @@
#define PCM_INDEX 0
#define MAX_PB_STREAMS 1
#define MAX_CAP_STREAMS 0
#define HDMI_INFO_FRAME_WORD1 0x000a0184
#define DP_INFO_FRAME_WORD1 0x00441b84
#define FIFO_THRESHOLD 0xFE
#define DMA_FIFO_THRESHOLD 0x7
#define BYTES_PER_WORD 0x4
#define INTEL_HAD "HdmiLpeAudio"
/* Sampling rate as per IEC60958 Ver 3 */
#define CH_STATUS_MAP_32KHZ 0x3
#define CH_STATUS_MAP_44KHZ 0x0
#define CH_STATUS_MAP_48KHZ 0x2
#define CH_STATUS_MAP_88KHZ 0x8
#define CH_STATUS_MAP_96KHZ 0xA
#define CH_STATUS_MAP_176KHZ 0xC
#define CH_STATUS_MAP_192KHZ 0xE
/*
* CEA speaker placement:
*
* FL FLC FC FRC FR
*
* LFE
*
* RL RLC RC RRC RR
*
* The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M
* corresponds to CEA RL/RR; The SMPTE channel _assignment_ C/LFE is
* swapped to CEA LFE/FC.
*/
enum cea_speaker_placement {
FL = (1 << 0), /* Front Left */
FC = (1 << 1), /* Front Center */
FR = (1 << 2), /* Front Right */
FLC = (1 << 3), /* Front Left Center */
FRC = (1 << 4), /* Front Right Center */
RL = (1 << 5), /* Rear Left */
RC = (1 << 6), /* Rear Center */
RR = (1 << 7), /* Rear Right */
RLC = (1 << 8), /* Rear Left Center */
RRC = (1 << 9), /* Rear Right Center */
LFE = (1 << 10), /* Low Frequency Effect */
};
#define MAX_SMPL_WIDTH_20 0x0
#define MAX_SMPL_WIDTH_24 0x1
#define SMPL_WIDTH_16BITS 0x1
#define SMPL_WIDTH_24BITS 0x5
#define CHANNEL_ALLOCATION 0x1F
#define VALID_DIP_WORDS 3
#define LAYOUT0 0
#define LAYOUT1 1
#define SWAP_LFE_CENTER 0x00fac4c8
#define AUD_CONFIG_CH_MASK 0x70
struct cea_channel_speaker_allocation {
int ca_index;
int speakers[8];
/* derived values, just for convenience */
int channels;
int spk_mask;
};
struct channel_map_table {
unsigned char map; /* ALSA API channel map position */
unsigned char cea_slot; /* CEA slot value */
int spk_mask; /* speaker position bit mask */
};
struct pcm_stream_info {
struct snd_pcm_substream *substream;

95
sound/x86/intel_hdmi_lpe_audio.h
View File

@ -23,7 +23,6 @@
#ifndef __INTEL_HDMI_LPE_AUDIO_H
#define __INTEL_HDMI_LPE_AUDIO_H
#define HAD_MAX_DEVICES 1
#define HAD_MIN_CHANNEL 2
#define HAD_MAX_CHANNEL 8
#define HAD_NUM_OF_RING_BUFS 4
@ -55,9 +54,7 @@
#define DIS_SAMPLE_RATE_74_25 74250
#define DIS_SAMPLE_RATE_148_5 148500
#define HAD_REG_WIDTH 0x08
#define HAD_MAX_HW_BUFS 0x04
#define HAD_MAX_DIP_WORDS 16
#define INTEL_HAD "HdmiLpeAudio"
/* DP Link Rates */
#define DP_2_7_GHZ 270000
@ -112,72 +109,34 @@ enum hdmi_ctrl_reg_offset {
AUD_HDMIW_INFOFR = 0x68, /* v2 */
};
/*
* CEA speaker placement:
*
* FL FLC FC FRC FR
*
* LFE
*
* RL RLC RC RRC RR
*
* The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M
* corresponds to CEA RL/RR; The SMPTE channel _assignment_ C/LFE is
* swapped to CEA LFE/FC.
*/
enum cea_speaker_placement {
FL = (1 << 0), /* Front Left */
FC = (1 << 1), /* Front Center */
FR = (1 << 2), /* Front Right */
FLC = (1 << 3), /* Front Left Center */
FRC = (1 << 4), /* Front Right Center */
RL = (1 << 5), /* Rear Left */
RC = (1 << 6), /* Rear Center */
RR = (1 << 7), /* Rear Right */
RLC = (1 << 8), /* Rear Left Center */
RRC = (1 << 9), /* Rear Right Center */
LFE = (1 << 10), /* Low Frequency Effect */
};
struct cea_channel_speaker_allocation {
int ca_index;
int speakers[8];
/* derived values, just for convenience */
int channels;
int spk_mask;
};
struct channel_map_table {
unsigned char map; /* ALSA API channel map position */
unsigned char cea_slot; /* CEA slot value */
int spk_mask; /* speaker position bit mask */
};
/* Audio configuration */
union aud_cfg {
struct {
u32 aud_en:1;
u32 layout:1;
u32 layout:1; /* LAYOUT[01], see below */
u32 fmt:2;
u32 num_ch:3;
u32 set:1;
u32 flat:1;
u32 val_bit:1;
u32 user_bit:1;
u32 underrun:1;
u32 packet_mode:1;
u32 left_align:1;
u32 bogus_sample:1;
u32 dp_modei:1;
u32 underrun:1; /* 0: send null packets,
* 1: send silence stream
*/
u32 packet_mode:1; /* 0: 32bit container, 1: 16bit */
u32 left_align:1; /* 0: MSB bits 0-23, 1: bits 8-31 */
u32 bogus_sample:1; /* bogus sample for odd channels */
u32 dp_modei:1; /* 0: HDMI, 1: DP */
u32 rsvd:16;
} regx;
u32 regval;
};
#define AUD_CONFIG_BLOCK_BIT (1 << 7)
#define AUD_CONFIG_VALID_BIT (1 << 9)
#define AUD_CONFIG_DP_MODE (1 << 15)
#define AUD_CONFIG_CH_MASK 0x70
#define LAYOUT0 0 /* interleaved stereo */
#define LAYOUT1 1 /* for channels > 2 */
/* Audio Channel Status 0 Attributes */
union aud_ch_status_0 {
@ -190,13 +149,22 @@ union aud_ch_status_0 {
u32 ctg_code:8;
u32 src_num:4;
u32 ch_num:4;
u32 samp_freq:4;
u32 samp_freq:4; /* CH_STATUS_MAP_XXX */
u32 clk_acc:2;
u32 rsvd:2;
} regx;
u32 regval;
};
/* samp_freq values - Sampling rate as per IEC60958 Ver 3 */
#define CH_STATUS_MAP_32KHZ 0x3
#define CH_STATUS_MAP_44KHZ 0x0
#define CH_STATUS_MAP_48KHZ 0x2
#define CH_STATUS_MAP_88KHZ 0x8
#define CH_STATUS_MAP_96KHZ 0xA
#define CH_STATUS_MAP_176KHZ 0xC
#define CH_STATUS_MAP_192KHZ 0xE
/* Audio Channel Status 1 Attributes */
union aud_ch_status_1 {
struct {
@ -207,6 +175,11 @@ union aud_ch_status_1 {
u32 regval;
};
#define MAX_SMPL_WIDTH_20 0x0
#define MAX_SMPL_WIDTH_24 0x1
#define SMPL_WIDTH_16BITS 0x1
#define SMPL_WIDTH_24BITS 0x5
/* CTS register */
union aud_hdmi_cts {
struct {
@ -239,6 +212,9 @@ union aud_buf_config {
u32 regval;
};
#define FIFO_THRESHOLD 0xFE
#define DMA_FIFO_THRESHOLD 0x7
/* Audio Sample Swapping offset */
union aud_buf_ch_swap {
struct {
@ -255,6 +231,8 @@ union aud_buf_ch_swap {
u32 regval;
};
#define SWAP_LFE_CENTER 0x00fac4c8 /* octal 76543210 */
/* Address for Audio Buffer */
union aud_buf_addr {
struct {
@ -306,6 +284,9 @@ union aud_info_frame1 {
u32 regval;
};
#define HDMI_INFO_FRAME_WORD1 0x000a0184
#define DP_INFO_FRAME_WORD1 0x00441b84
/* DIP frame 2 */
union aud_info_frame2 {
struct {
@ -333,13 +314,15 @@ union aud_info_frame3 {
u32 regval;
};
#define VALID_DIP_WORDS 3
/* AUD_HDMI_STATUS bits */
#define HDMI_AUDIO_UNDERRUN (1U << 31)
#define HDMI_AUDIO_BUFFER_DONE (1U << 29)
/* AUD_HDMI_STATUS register mask */
#define AUD_CONFIG_MASK_UNDERRUN 0xC0000000
#define AUD_CONFIG_MASK_SRDBG 0x00000002
#define AUD_CONFIG_MASK_FUNCRST 0x00000001
#define AUD_HDMI_STATUS_MASK_UNDERRUN 0xC0000000
#define AUD_HDMI_STATUS_MASK_SRDBG 0x00000002
#define AUD_HDMI_STATUSG_MASK_FUNCRST 0x00000001
#endif