sound/pci/ice1712/ews.h
Source file repositories/reference/linux-study-clean/sound/pci/ice1712/ews.h
File Facts
- System
- Linux kernel
- Corpus path
sound/pci/ice1712/ews.h- Extension
.h- Size
- 2836 bytes
- Lines
- 73
- Domain
- Driver Families
- Bucket
- sound/pci
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __SOUND_EWS_H
#define __SOUND_EWS_H
/*
* ALSA driver for ICEnsemble ICE1712 (Envy24)
*
* Lowlevel functions for Terratec EWS88MT/D, EWX24/96, DMX 6Fire
*
* Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
* 2002 Takashi Iwai <tiwai@suse.de>
*/
#define EWS_DEVICE_DESC \
"{TerraTec,EWX 24/96},"\
"{TerraTec,EWS 88MT},"\
"{TerraTec,EWS 88D},"\
"{TerraTec,DMX 6Fire},"\
"{TerraTec,Phase 88}," \
"{terrasoniq,TS 88},"
#define ICE1712_SUBDEVICE_EWX2496 0x3b153011
#define ICE1712_SUBDEVICE_EWS88MT 0x3b151511
#define ICE1712_SUBDEVICE_EWS88MT_NEW 0x3b152511
#define ICE1712_SUBDEVICE_EWS88D 0x3b152b11
#define ICE1712_SUBDEVICE_DMX6FIRE 0x3b153811
#define ICE1712_SUBDEVICE_PHASE88 0x3b155111
#define ICE1712_SUBDEVICE_TS88 0x3b157c11
/* entry point */
extern struct snd_ice1712_card_info snd_ice1712_ews_cards[];
/* TerraTec EWX 24/96 configuration definitions */
#define ICE1712_EWX2496_AK4524_CS 0x01 /* AK4524 chip select; low = active */
#define ICE1712_EWX2496_AIN_SEL 0x02 /* input sensitivity switch; high = louder */
#define ICE1712_EWX2496_AOUT_SEL 0x04 /* output sensitivity switch; high = louder */
#define ICE1712_EWX2496_RW 0x08 /* read/write switch for i2c; high = write */
#define ICE1712_EWX2496_SERIAL_DATA 0x10 /* i2c & ak4524 data */
#define ICE1712_EWX2496_SERIAL_CLOCK 0x20 /* i2c & ak4524 clock */
#define ICE1712_EWX2496_TX2 0x40 /* MIDI2 (not used) */
#define ICE1712_EWX2496_RX2 0x80 /* MIDI2 (not used) */
/* TerraTec EWS 88MT/D configuration definitions */
/* RW, SDA snd SCLK are identical with EWX24/96 */
#define ICE1712_EWS88_CS8414_RATE 0x07 /* CS8414 sample rate: gpio 0-2 */
#define ICE1712_EWS88_RW 0x08 /* read/write switch for i2c; high = write */
#define ICE1712_EWS88_SERIAL_DATA 0x10 /* i2c & ak4524 data */
#define ICE1712_EWS88_SERIAL_CLOCK 0x20 /* i2c & ak4524 clock */
#define ICE1712_EWS88_TX2 0x40 /* MIDI2 (only on 88D) */
#define ICE1712_EWS88_RX2 0x80 /* MIDI2 (only on 88D) */
/* i2c address */
#define ICE1712_EWS88MT_CS8404_ADDR (0x40>>1)
#define ICE1712_EWS88MT_INPUT_ADDR (0x46>>1)
#define ICE1712_EWS88MT_OUTPUT_ADDR (0x48>>1)
#define ICE1712_EWS88MT_OUTPUT_SENSE 0x40 /* mask */
#define ICE1712_EWS88D_PCF_ADDR (0x40>>1)
/* TerraTec DMX 6Fire configuration definitions */
#define ICE1712_6FIRE_AK4524_CS_MASK 0x07 /* AK4524 chip select #1-#3 */
#define ICE1712_6FIRE_RW 0x08 /* read/write switch for i2c; high = write */
#define ICE1712_6FIRE_SERIAL_DATA 0x10 /* i2c & ak4524 data */
#define ICE1712_6FIRE_SERIAL_CLOCK 0x20 /* i2c & ak4524 clock */
#define ICE1712_6FIRE_TX2 0x40 /* MIDI2 */
#define ICE1712_6FIRE_RX2 0x80 /* MIDI2 */
#define ICE1712_6FIRE_PCF9554_ADDR (0x40>>1)
#define ICE1712_6FIRE_CS8427_ADDR (0x22)
#endif /* __SOUND_EWS_H */
Annotation
- Atlas domain: Driver Families / sound/pci.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.