| /kernel/linux/linux-6.6/Documentation/sound/soc/ |
| D | dai.rst | 6 SoC controllers and portable audio CODECs today, namely AC97, I2S and PCM.
35 I2S has several different operating modes:-
47 PCM chapter
50 PCM is another 4 wire interface, very similar to I2S, which can support a more
51 flexible protocol. It has bit clock (BCLK) and sync (SYNC) lines that are used
54 while sync runs at the sample rate. PCM also supports Time Division
56 is sometimes referred to as network mode).
58 Common PCM operating modes:-
60 Mode A
61 MSB is transmitted on falling edge of first BCLK after FRAME/SYNC.
[all …]
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| /kernel/linux/linux-5.10/Documentation/sound/soc/ |
| D | dai.rst | 6 SoC controllers and portable audio CODECs today, namely AC97, I2S and PCM.
35 I2S has several different operating modes:-
47 PCM chapter
50 PCM is another 4 wire interface, very similar to I2S, which can support a more
51 flexible protocol. It has bit clock (BCLK) and sync (SYNC) lines that are used
54 while sync runs at the sample rate. PCM also supports Time Division
56 is sometimes referred to as network mode).
58 Common PCM operating modes:-
60 Mode A
61 MSB is transmitted on falling edge of first BCLK after FRAME/SYNC.
[all …]
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/net/ |
| D | broadcom-bluetooth.txt | 2 ---------------------
12 - compatible: should contain one of the following:
14 * "brcm,bcm4329-bt"
15 * "brcm,bcm4330-bt"
16 * "brcm,bcm43438-bt"
18 * "brcm,bcm43540-bt"
23 - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml
24 - shutdown-gpios: GPIO specifier, used to enable the BT module
25 - device-wakeup-gpios: GPIO specifier, used to wakeup the controller
26 - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor.
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/net/ |
| D | broadcom-bluetooth.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/broadcom-bluetooth.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Linus Walleij <linus.walleij@linaro.org>
13 This binding describes Broadcom UART-attached bluetooth chips.
18 - brcm,bcm20702a1
19 - brcm,bcm4329-bt
20 - brcm,bcm4330-bt
21 - brcm,bcm4334-bt
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| /kernel/linux/linux-5.10/sound/soc/mediatek/mt6797/ |
| D | mt6797-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include "mt6797-afe-common.h"
11 #include "mt6797-interconnection.h"
12 #include "mt6797-reg.h"
30 /* bck sync length = 1 */
32 /* bck sync length = PCM_INTF_CON1[9:13] */
42 /* slave mode & external modem uses different crystal */
44 /* slave mode & external modem uses the same crystal */
122 /* inter-connections */
155 {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"},
[all …]
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| /kernel/linux/linux-5.10/sound/soc/mediatek/mt8183/ |
| D | mt8183-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include "mt8183-afe-common.h"
11 #include "mt8183-interconnection.h"
12 #include "mt8183-reg.h"
30 /* bck sync length = 1 */
32 /* bck sync length = PCM_INTF_CON1[9:13] */
42 /* slave mode & external modem uses different crystal */
44 /* slave mode & external modem uses the same crystal */
122 /* inter-connections */
155 {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"},
[all …]
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt6797/ |
| D | mt6797-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include "mt6797-afe-common.h"
11 #include "mt6797-interconnection.h"
12 #include "mt6797-reg.h"
30 /* bck sync length = 1 */
32 /* bck sync length = PCM_INTF_CON1[9:13] */
42 /* slave mode & external modem uses different crystal */
44 /* slave mode & external modem uses the same crystal */
122 /* inter-connections */
155 {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"},
[all …]
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt8183/ |
| D | mt8183-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include "mt8183-afe-common.h"
11 #include "mt8183-interconnection.h"
12 #include "mt8183-reg.h"
30 /* bck sync length = 1 */
32 /* bck sync length = PCM_INTF_CON1[9:13] */
42 /* slave mode & external modem uses different crystal */
44 /* slave mode & external modem uses the same crystal */
122 /* inter-connections */
155 {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"},
[all …]
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| /kernel/linux/linux-5.10/sound/soc/bcm/ |
| D | bcm2835-i2s.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * Raspberry Pi PCM I2S ALSA Driver
23 * Copyright 2007-2010 Freescale Semiconductor, Inc.
39 #include <sound/pcm.h>
130 unsigned int master = dev->fmt & SND_SOC_DAIFMT_MASTER_MASK; in bcm2835_i2s_start_clock()
132 if (dev->clk_prepared) in bcm2835_i2s_start_clock()
138 clk_prepare_enable(dev->clk); in bcm2835_i2s_start_clock()
139 dev->clk_prepared = true; in bcm2835_i2s_start_clock()
148 if (dev->clk_prepared) in bcm2835_i2s_stop_clock()
149 clk_disable_unprepare(dev->clk); in bcm2835_i2s_stop_clock()
[all …]
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| /kernel/linux/linux-6.6/sound/soc/bcm/ |
| D | bcm2835-i2s.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * Raspberry Pi PCM I2S ALSA Driver
23 * Copyright 2007-2010 Freescale Semiconductor, Inc.
39 #include <sound/pcm.h>
130 unsigned int provider = dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; in bcm2835_i2s_start_clock()
132 if (dev->clk_prepared) in bcm2835_i2s_start_clock()
138 clk_prepare_enable(dev->clk); in bcm2835_i2s_start_clock()
139 dev->clk_prepared = true; in bcm2835_i2s_start_clock()
148 if (dev->clk_prepared) in bcm2835_i2s_stop_clock()
149 clk_disable_unprepare(dev->clk); in bcm2835_i2s_stop_clock()
[all …]
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt8186/ |
| D | mt8186-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include "mt8186-afe-common.h"
11 #include "mt8186-afe-gpio.h"
12 #include "mt8186-interconnection.h"
37 /* bck sync length = 1 */
39 /* bck sync length = PCM_INTF_CON1[9:13] */
49 /* slave mode & external modem uses different crystal */
51 /* slave mode & external modem uses the same crystal */
122 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); in mtk_pcm_en_event()
125 dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n", in mtk_pcm_en_event()
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt8192/ |
| D | mt8192-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
12 #include "mt8192-afe-common.h"
13 #include "mt8192-interconnection.h"
31 /* bck sync length = 1 */
33 /* bck sync length = PCM_INTF_CON1[9:13] */
43 /* slave mode & external modem uses different crystal */
45 /* slave mode & external modem uses the same crystal */
178 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); in mtk_pcm_en_event()
181 dev_info(afe->dev, "%s(), name %s, event 0x%x\n", in mtk_pcm_en_event()
182 __func__, w->name, event); in mtk_pcm_en_event()
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt8195/ |
| D | mt8195-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * MediaTek ALSA SoC Audio DAI PCM I/F Control
12 #include "mt8195-afe-clk.h"
13 #include "mt8195-afe-common.h"
14 #include "mt8195-reg.h"
60 return -EINVAL; in mtk_dai_pcm_mode()
122 struct snd_pcm_runtime * const runtime = substream->runtime; in mtk_dai_pcm_configure()
124 struct mt8195_afe_private *afe_priv = afe->platform_priv; in mtk_dai_pcm_configure()
130 unsigned int bit_width = dai->sample_bits; in mtk_dai_pcm_configure()
134 int mode = 0; in mtk_dai_pcm_configure() local
[all …]
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| /kernel/linux/linux-6.6/sound/soc/mediatek/mt8188/ |
| D | mt8188-dai-pcm.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * MediaTek ALSA SoC Audio DAI PCM I/F Control
8 * Chun-Chia Chiu <chun-chia.chiu@mediatek.com>
14 #include "mt8188-afe-clk.h"
15 #include "mt8188-afe-common.h"
16 #include "mt8188-reg.h"
62 return -EINVAL; in mtk_dai_pcm_mode()
123 struct snd_pcm_runtime * const runtime = substream->runtime; in mtk_dai_pcm_configure()
125 struct mt8188_afe_private *afe_priv = afe->platform_priv; in mtk_dai_pcm_configure()
131 unsigned int bit_width = dai->sample_bits; in mtk_dai_pcm_configure()
[all …]
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| /kernel/linux/linux-6.6/sound/usb/ |
| D | usbaudio.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
10 /* handling of USB vendor/product ID pairs as 32-bit numbers */
46 struct list_head pcm_list; /* list of pcm streams */
47 struct list_head ep_list; /* list of audio-related endpoints */
68 #define USB_AUDIO_IFACE_UNUSED ((void *)-1L)
71 dev_err(&(chip)->dev->dev, fmt, ##args)
73 dev_err_ratelimited(&(chip)->dev->dev, fmt, ##args)
75 dev_warn(&(chip)->dev->dev, fmt, ##args)
77 dev_info(&(chip)->dev->dev, fmt, ##args)
79 dev_dbg(&(chip)->dev->dev, fmt, ##args)
[all …]
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| D | proc.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
10 #include <sound/pcm.h>
35 struct snd_usb_audio *chip = entry->private_data; in proc_audio_usbbus_read()
36 if (!atomic_read(&chip->shutdown)) in proc_audio_usbbus_read()
37 snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); in proc_audio_usbbus_read()
42 struct snd_usb_audio *chip = entry->private_data; in proc_audio_usbid_read()
43 if (!atomic_read(&chip->shutdown)) in proc_audio_usbid_read()
45 USB_ID_VENDOR(chip->usb_id), in proc_audio_usbid_read()
46 USB_ID_PRODUCT(chip->usb_id)); in proc_audio_usbid_read()
51 snd_card_ro_proc_new(chip->card, "usbbus", chip, in snd_usb_audio_create_proc()
[all …]
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| D | pcm.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
11 #include <linux/usb/audio-v2.h>
14 #include <sound/pcm.h>
22 #include "pcm.h"
40 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { in snd_usb_pcm_delay()
41 queued = bytes_to_frames(runtime, subs->inflight_bytes); in snd_usb_pcm_delay()
44 } else if (!subs->running) { in snd_usb_pcm_delay()
48 current_frame_number = usb_get_current_frame_number(subs->dev); in snd_usb_pcm_delay()
54 frame_diff = (current_frame_number - subs->last_frame_number) & 0xff; in snd_usb_pcm_delay()
58 est_delay = frame_diff * runtime->rate / 1000; in snd_usb_pcm_delay()
[all …]
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| /kernel/linux/linux-5.10/sound/soc/ti/ |
| D | davinci-i2s.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * based on davinci-mcasp.c DT support
25 #include <sound/pcm.h>
31 #include "edma-pcm.h"
32 #include "davinci-i2s.h"
34 #define DRV_NAME "davinci-i2s"
39 * - This driver supports the "Audio Serial Port" (ASP),
42 * - But it labels it a "Multi-channel Buffered Serial Port"
44 * backward-compatible, possibly explaining that confusion.
46 * - OMAP chips have a controller called McBSP, which is
[all …]
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| /kernel/linux/linux-6.6/sound/soc/ti/ |
| D | davinci-i2s.c | 1 // SPDX-License-Identifier: GPL-2.0-only
9 * based on davinci-mcasp.c DT support
25 #include <sound/pcm.h>
31 #include "edma-pcm.h"
32 #include "davinci-i2s.h"
34 #define DRV_NAME "davinci-i2s"
39 * - This driver supports the "Audio Serial Port" (ASP),
42 * - But it labels it a "Multi-channel Buffered Serial Port"
44 * backward-compatible, possibly explaining that confusion.
46 * - OMAP chips have a controller called McBSP, which is
[all …]
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| /kernel/linux/linux-6.6/sound/usb/line6/ |
| D | pcm.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
9 PCM interface to POD series devices.
15 #include <sound/pcm.h>
35 Get substream from Line 6 PCM data structure
38 (line6pcm->pcm->streams[stream].substream)
41 PCM mode bits.
43 There are several features of the Line 6 USB driver which require PCM
45 *) PCM playback and capture via ALSA
51 subsystems with respect to PCM usage.
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| /kernel/linux/linux-5.10/sound/usb/line6/ |
| D | pcm.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
9 PCM interface to POD series devices.
15 #include <sound/pcm.h>
35 Get substream from Line 6 PCM data structure
38 (line6pcm->pcm->streams[stream].substream)
41 PCM mode bits.
43 There are several features of the Line 6 USB driver which require PCM
45 *) PCM playback and capture via ALSA
51 subsystems with respect to PCM usage.
[all …]
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| /kernel/linux/linux-5.10/drivers/accessibility/speakup/ |
| D | speakup_dtlk.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* speakup_dtlk.h - header file for speakups DoubleTalk driver. */
10 #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
12 * output with TTS, PCM or CVSD
23 * bit goes zero 2-3 usec after
24 * writing, and goes 1 again 180-190
30 * buffer. AF is always 0 in the PCM,
36 * (TTS or PCM) buffer. AE is always 1
42 u_short serial_number; /* 0-7Fh:0-7Fh */
44 u_char mode; /* 0=Character; 1=Phoneme; 2=Text */ member
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| /kernel/linux/linux-6.6/drivers/accessibility/speakup/ |
| D | speakup_dtlk.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* speakup_dtlk.h - header file for speakups DoubleTalk driver. */
10 #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
12 * output with TTS, PCM or CVSD
23 * bit goes zero 2-3 usec after
24 * writing, and goes 1 again 180-190
30 * buffer. AF is always 0 in the PCM,
36 * (TTS or PCM) buffer. AE is always 1
42 u_short serial_number; /* 0-7Fh:0-7Fh */
44 u_char mode; /* 0=Character; 1=Phoneme; 2=Text */ member
[all …]
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| /kernel/linux/linux-6.6/drivers/clk/st/ |
| D | clk-flexgen.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * clk-flexgen.c
5 * Copyright (C) ST-Microelectronics SA 2013
6 * Author: Maxime Coquelin <maxime.coquelin@st.com> for ST-Microelectronics.
10 #include <linux/clk-provider.h>
26 bool mode; member
36 /* Pre-divisor's gate */
38 /* Pre-divisor */
44 /* Asynchronous mode control */
45 struct clk_gate sync; member
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| /kernel/linux/linux-5.10/include/linux/ |
| D | dtlk.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
17 #define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
19 output with TTS, PCM or CVSD
28 bit goes zero 2-3 usec after
29 writing, and goes 1 again 180-190
35 PCM, TGN and CVSD modes. */
39 input (TTS or PCM) buffer. AE is
67 unsigned short serial_number; /* 0-7Fh:0-7Fh */
69 unsigned char mode; /* 0=Character; 1=Phoneme; 2=Text */ member
70 unsigned char punc_level; /* nB; 0-7 */
[all …]
|