1/*
2 * Line 6 Pod HD
3 *
4 * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com>
5 *
6 *	This program is free software; you can redistribute it and/or
7 *	modify it under the terms of the GNU General Public License as
8 *	published by the Free Software Foundation, version 2.
9 *
10 */
11
12#include <linux/usb.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <sound/core.h>
16#include <sound/pcm.h>
17
18#include "driver.h"
19#include "pcm.h"
20
21enum {
22	LINE6_PODHD300,
23	LINE6_PODHD400,
24	LINE6_PODHD500_0,
25	LINE6_PODHD500_1,
26};
27
28#define PODHD_BYTES_PER_FRAME 6	/* 24bit audio (stereo) */
29
30static struct snd_ratden podhd_ratden = {
31	.num_min = 48000,
32	.num_max = 48000,
33	.num_step = 1,
34	.den = 1,
35};
36
37static struct line6_pcm_properties podhd_pcm_properties = {
38	.playback_hw = {
39				  .info = (SNDRV_PCM_INFO_MMAP |
40					   SNDRV_PCM_INFO_INTERLEAVED |
41					   SNDRV_PCM_INFO_BLOCK_TRANSFER |
42					   SNDRV_PCM_INFO_MMAP_VALID |
43					   SNDRV_PCM_INFO_PAUSE |
44					   SNDRV_PCM_INFO_SYNC_START),
45				  .formats = SNDRV_PCM_FMTBIT_S24_3LE,
46				  .rates = SNDRV_PCM_RATE_48000,
47				  .rate_min = 48000,
48				  .rate_max = 48000,
49				  .channels_min = 2,
50				  .channels_max = 2,
51				  .buffer_bytes_max = 60000,
52				  .period_bytes_min = 64,
53				  .period_bytes_max = 8192,
54				  .periods_min = 1,
55				  .periods_max = 1024},
56	.capture_hw = {
57				 .info = (SNDRV_PCM_INFO_MMAP |
58					  SNDRV_PCM_INFO_INTERLEAVED |
59					  SNDRV_PCM_INFO_BLOCK_TRANSFER |
60					  SNDRV_PCM_INFO_MMAP_VALID |
61					  SNDRV_PCM_INFO_SYNC_START),
62				 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
63				 .rates = SNDRV_PCM_RATE_48000,
64				 .rate_min = 48000,
65				 .rate_max = 48000,
66				 .channels_min = 2,
67				 .channels_max = 2,
68				 .buffer_bytes_max = 60000,
69				 .period_bytes_min = 64,
70				 .period_bytes_max = 8192,
71				 .periods_min = 1,
72				 .periods_max = 1024},
73	.rates = {
74			    .nrats = 1,
75			    .rats = &podhd_ratden},
76	.bytes_per_frame = PODHD_BYTES_PER_FRAME
77};
78
79/*
80	Try to init POD HD device.
81*/
82static int podhd_init(struct usb_line6 *line6,
83		      const struct usb_device_id *id)
84{
85	int err;
86
87	/* initialize MIDI subsystem: */
88	err = line6_init_midi(line6);
89	if (err < 0)
90		return err;
91
92	/* initialize PCM subsystem: */
93	err = line6_init_pcm(line6, &podhd_pcm_properties);
94	if (err < 0)
95		return err;
96
97	/* register USB audio system: */
98	return snd_card_register(line6->card);
99}
100
101#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
102#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n)
103
104/* table of devices that work with this driver */
105static const struct usb_device_id podhd_id_table[] = {
106	{ LINE6_DEVICE(0x5057),    .driver_info = LINE6_PODHD300 },
107	{ LINE6_DEVICE(0x5058),    .driver_info = LINE6_PODHD400 },
108	{ LINE6_IF_NUM(0x414D, 0), .driver_info = LINE6_PODHD500_0 },
109	{ LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 },
110	{}
111};
112
113MODULE_DEVICE_TABLE(usb, podhd_id_table);
114
115static const struct line6_properties podhd_properties_table[] = {
116	[LINE6_PODHD300] = {
117		.id = "PODHD300",
118		.name = "POD HD300",
119		.capabilities	= LINE6_CAP_CONTROL
120				| LINE6_CAP_PCM
121				| LINE6_CAP_HWMON,
122		.altsetting = 5,
123		.ep_ctrl_r = 0x84,
124		.ep_ctrl_w = 0x03,
125		.ep_audio_r = 0x82,
126		.ep_audio_w = 0x01,
127	},
128	[LINE6_PODHD400] = {
129		.id = "PODHD400",
130		.name = "POD HD400",
131		.capabilities	= LINE6_CAP_CONTROL
132				| LINE6_CAP_PCM
133				| LINE6_CAP_HWMON,
134		.altsetting = 5,
135		.ep_ctrl_r = 0x84,
136		.ep_ctrl_w = 0x03,
137		.ep_audio_r = 0x82,
138		.ep_audio_w = 0x01,
139	},
140	[LINE6_PODHD500_0] = {
141		.id = "PODHD500",
142		.name = "POD HD500",
143		.capabilities	= LINE6_CAP_CONTROL
144				| LINE6_CAP_PCM
145				| LINE6_CAP_HWMON,
146		.altsetting = 1,
147		.ep_ctrl_r = 0x81,
148		.ep_ctrl_w = 0x01,
149		.ep_audio_r = 0x86,
150		.ep_audio_w = 0x02,
151	},
152	[LINE6_PODHD500_1] = {
153		.id = "PODHD500",
154		.name = "POD HD500",
155		.capabilities	= LINE6_CAP_CONTROL
156				| LINE6_CAP_PCM
157				| LINE6_CAP_HWMON,
158		.altsetting = 1,
159		.ep_ctrl_r = 0x81,
160		.ep_ctrl_w = 0x01,
161		.ep_audio_r = 0x86,
162		.ep_audio_w = 0x02,
163	},
164};
165
166/*
167	Probe USB device.
168*/
169static int podhd_probe(struct usb_interface *interface,
170		       const struct usb_device_id *id)
171{
172	return line6_probe(interface, id, "Line6-PODHD",
173			   &podhd_properties_table[id->driver_info],
174			   podhd_init, sizeof(struct usb_line6));
175}
176
177static struct usb_driver podhd_driver = {
178	.name = KBUILD_MODNAME,
179	.probe = podhd_probe,
180	.disconnect = line6_disconnect,
181#ifdef CONFIG_PM
182	.suspend = line6_suspend,
183	.resume = line6_resume,
184	.reset_resume = line6_resume,
185#endif
186	.id_table = podhd_id_table,
187};
188
189module_usb_driver(podhd_driver);
190
191MODULE_DESCRIPTION("Line 6 PODHD USB driver");
192MODULE_LICENSE("GPL");
193