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1 | /* | |
2 | * Generic driver for CS4231 chips | |
3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> | |
4 | * Originally the CS4232/CS4232A driver, modified for use on CS4231 by | |
5 | * Tugrul Galatali <galatalt@stuy.edu> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | ||
23 | #include <linux/init.h> | |
24 | #include <linux/err.h> | |
25 | #include <linux/isa.h> | |
26 | #include <linux/time.h> | |
27 | #include <linux/wait.h> | |
28 | #include <linux/module.h> | |
29 | #include <sound/core.h> | |
30 | #include <sound/wss.h> | |
31 | #include <sound/mpu401.h> | |
32 | #include <sound/initval.h> | |
33 | ||
34 | #define CRD_NAME "Generic CS4231" | |
35 | #define DEV_NAME "cs4231" | |
36 | ||
37 | MODULE_DESCRIPTION(CRD_NAME); | |
38 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); | |
39 | MODULE_LICENSE("GPL"); | |
40 | MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); | |
41 | ||
42 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
43 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
44 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ | |
45 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ | |
46 | static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ | |
47 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ | |
48 | static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ | |
49 | static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ | |
50 | static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ | |
51 | ||
52 | module_param_array(index, int, NULL, 0444); | |
53 | MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); | |
54 | module_param_array(id, charp, NULL, 0444); | |
55 | MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); | |
56 | module_param_array(enable, bool, NULL, 0444); | |
57 | MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); | |
58 | module_param_array(port, long, NULL, 0444); | |
59 | MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); | |
60 | module_param_array(mpu_port, long, NULL, 0444); | |
61 | MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver."); | |
62 | module_param_array(irq, int, NULL, 0444); | |
63 | MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); | |
64 | module_param_array(mpu_irq, int, NULL, 0444); | |
65 | MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver."); | |
66 | module_param_array(dma1, int, NULL, 0444); | |
67 | MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); | |
68 | module_param_array(dma2, int, NULL, 0444); | |
69 | MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver."); | |
70 | ||
71 | static int snd_cs4231_match(struct device *dev, unsigned int n) | |
72 | { | |
73 | if (!enable[n]) | |
74 | return 0; | |
75 | ||
76 | if (port[n] == SNDRV_AUTO_PORT) { | |
77 | dev_err(dev, "please specify port\n"); | |
78 | return 0; | |
79 | } | |
80 | if (irq[n] == SNDRV_AUTO_IRQ) { | |
81 | dev_err(dev, "please specify irq\n"); | |
82 | return 0; | |
83 | } | |
84 | if (dma1[n] == SNDRV_AUTO_DMA) { | |
85 | dev_err(dev, "please specify dma1\n"); | |
86 | return 0; | |
87 | } | |
88 | return 1; | |
89 | } | |
90 | ||
91 | static int snd_cs4231_probe(struct device *dev, unsigned int n) | |
92 | { | |
93 | struct snd_card *card; | |
94 | struct snd_wss *chip; | |
95 | int error; | |
96 | ||
97 | error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); | |
98 | if (error < 0) | |
99 | return error; | |
100 | ||
101 | error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n], | |
102 | WSS_HW_DETECT, 0, &chip); | |
103 | if (error < 0) | |
104 | goto out; | |
105 | ||
106 | card->private_data = chip; | |
107 | ||
108 | error = snd_wss_pcm(chip, 0); | |
109 | if (error < 0) | |
110 | goto out; | |
111 | ||
112 | strcpy(card->driver, "CS4231"); | |
113 | strcpy(card->shortname, chip->pcm->name); | |
114 | ||
115 | sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", | |
116 | chip->pcm->name, chip->port, irq[n], dma1[n]); | |
117 | if (dma2[n] >= 0) | |
118 | sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]); | |
119 | ||
120 | error = snd_wss_mixer(chip); | |
121 | if (error < 0) | |
122 | goto out; | |
123 | ||
124 | error = snd_wss_timer(chip, 0); | |
125 | if (error < 0) | |
126 | goto out; | |
127 | ||
128 | if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) { | |
129 | if (mpu_irq[n] == SNDRV_AUTO_IRQ) | |
130 | mpu_irq[n] = -1; | |
131 | if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, | |
132 | mpu_port[n], 0, mpu_irq[n], | |
133 | NULL) < 0) | |
134 | dev_warn(dev, "MPU401 not detected\n"); | |
135 | } | |
136 | ||
137 | error = snd_card_register(card); | |
138 | if (error < 0) | |
139 | goto out; | |
140 | ||
141 | dev_set_drvdata(dev, card); | |
142 | return 0; | |
143 | ||
144 | out: snd_card_free(card); | |
145 | return error; | |
146 | } | |
147 | ||
148 | static int snd_cs4231_remove(struct device *dev, unsigned int n) | |
149 | { | |
150 | snd_card_free(dev_get_drvdata(dev)); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | #ifdef CONFIG_PM | |
155 | static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state) | |
156 | { | |
157 | struct snd_card *card = dev_get_drvdata(dev); | |
158 | struct snd_wss *chip = card->private_data; | |
159 | ||
160 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
161 | chip->suspend(chip); | |
162 | return 0; | |
163 | } | |
164 | ||
165 | static int snd_cs4231_resume(struct device *dev, unsigned int n) | |
166 | { | |
167 | struct snd_card *card = dev_get_drvdata(dev); | |
168 | struct snd_wss *chip = card->private_data; | |
169 | ||
170 | chip->resume(chip); | |
171 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); | |
172 | return 0; | |
173 | } | |
174 | #endif | |
175 | ||
176 | static struct isa_driver snd_cs4231_driver = { | |
177 | .match = snd_cs4231_match, | |
178 | .probe = snd_cs4231_probe, | |
179 | .remove = snd_cs4231_remove, | |
180 | #ifdef CONFIG_PM | |
181 | .suspend = snd_cs4231_suspend, | |
182 | .resume = snd_cs4231_resume, | |
183 | #endif | |
184 | .driver = { | |
185 | .name = DEV_NAME | |
186 | } | |
187 | }; | |
188 | ||
189 | module_isa_driver(snd_cs4231_driver, SNDRV_CARDS); |