text: // SPDX-License-Identifier: GPL-2.0-only
  /*
   *  ALSA driver for Echoaudio soundcards.
   *  Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
   */
  
  #define ECHOGALS_FAMILY
  #define ECHOCARD_DARLA20
  #define ECHOCARD_NAME "Darla20"
  #define ECHOCARD_HAS_MONITOR
  
  /* Pipe indexes */
  #define PX_ANALOG_OUT	0	/* 8 */
  #define PX_DIGITAL_OUT	8	/* 0 */
  #define PX_ANALOG_IN	8	/* 2 */
  #define PX_DIGITAL_IN	10	/* 0 */
  #define PX_NUM		10
  
  /* Bus indexes */
  #define BX_ANALOG_OUT	0	/* 8 */
  #define BX_DIGITAL_OUT	8	/* 0 */
  #define BX_ANALOG_IN	8	/* 2 */
  #define BX_DIGITAL_IN	10	/* 0 */
  #define BX_NUM		10
  
  
  #include <linux/delay.h>
  #include <linux/init.h>
  #include <linux/interrupt.h>
  #include <linux/pci.h>
  #include <linux/module.h>
  #include <linux/firmware.h>
  #include <linux/slab.h>
  #include <linux/io.h>
  #include <sound/core.h>
  #include <sound/info.h>
  #include <sound/control.h>
  #include <sound/tlv.h>
  #include <sound/pcm.h>
  #include <sound/pcm_params.h>
  #include <sound/asoundef.h>
  #include <sound/initval.h>
  #include <linux/atomic.h>
  #include "echoaudio.h"
  
  MODULE_FIRMWARE("ea/darla20_dsp.fw");
  
  #define FW_DARLA20_DSP	0
  
  static const struct firmware card_fw[] = {
  	{0, "darla20_dsp.fw"}
  };
  
  static const struct pci_device_id snd_echo_ids[] = {
  	{0x1057, 0x1801, 0xECC0, 0x0010, 0, 0, 0},	/* DSP 56301 Darla20 rev.0 */
  	{0,}
  };
  
  static struct snd_pcm_hardware pcm_hardware_skel = {
  	.info = SNDRV_PCM_INFO_MMAP |
  		SNDRV_PCM_INFO_INTERLEAVED |
  		SNDRV_PCM_INFO_BLOCK_TRANSFER |
  		SNDRV_PCM_INFO_MMAP_VALID |
  		SNDRV_PCM_INFO_PAUSE |
  		SNDRV_PCM_INFO_SYNC_START,
  	.formats =	SNDRV_PCM_FMTBIT_U8 |
  			SNDRV_PCM_FMTBIT_S16_LE |
  			SNDRV_PCM_FMTBIT_S24_3LE |
  			SNDRV_PCM_FMTBIT_S32_LE |
  			SNDRV_PCM_FMTBIT_S32_BE,
  	.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
  	.rate_min = 44100,
  	.rate_max = 48000,
  	.channels_min = 1,
  	.channels_max = 2,
  	.buffer_bytes_max = 262144,
  	.period_bytes_min = 32,
  	.period_bytes_max = 131072,
  	.periods_min = 2,
  	.periods_max = 220,
  	/* One page (4k) contains 512 instructions. I don't know if the hw
  	supports lists longer than this. In this case periods_max=220 is a
  	safe limit to make sure the list never exceeds 512 instructions. */
  };
  
  
  #include "darla20_dsp.c"
  #include "echoaudio_dsp.c"
  #include "echoaudio.c"
  