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_hw_array(port, long, ioport, NULL, 0444);
59 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
60 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
61 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
62 module_param_hw_array(irq, int, irq, NULL, 0444);
63 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
64 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
65 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
66 module_param_hw_array(dma1, int, dma, NULL, 0444);
67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
68 module_param_hw_array(dma2, int, dma, NULL, 0444);
69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
70
snd_cs4231_match(struct device * dev,unsigned int n)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
snd_cs4231_probe(struct device * dev,unsigned int n)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 strlcpy(card->driver, "CS4231", sizeof(card->driver));
113 strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
114
115 if (dma2[n] < 0)
116 snprintf(card->longname, sizeof(card->longname),
117 "%s at 0x%lx, irq %d, dma %d",
118 chip->pcm->name, chip->port, irq[n], dma1[n]);
119 else
120 snprintf(card->longname, sizeof(card->longname),
121 "%s at 0x%lx, irq %d, dma %d&%d",
122 chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
123
124 error = snd_wss_mixer(chip);
125 if (error < 0)
126 goto out;
127
128 error = snd_wss_timer(chip, 0);
129 if (error < 0)
130 goto out;
131
132 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
133 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
134 mpu_irq[n] = -1;
135 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
136 mpu_port[n], 0, mpu_irq[n],
137 NULL) < 0)
138 dev_warn(dev, "MPU401 not detected\n");
139 }
140
141 error = snd_card_register(card);
142 if (error < 0)
143 goto out;
144
145 dev_set_drvdata(dev, card);
146 return 0;
147
148 out: snd_card_free(card);
149 return error;
150 }
151
snd_cs4231_remove(struct device * dev,unsigned int n)152 static int snd_cs4231_remove(struct device *dev, unsigned int n)
153 {
154 snd_card_free(dev_get_drvdata(dev));
155 return 0;
156 }
157
158 #ifdef CONFIG_PM
snd_cs4231_suspend(struct device * dev,unsigned int n,pm_message_t state)159 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
160 {
161 struct snd_card *card = dev_get_drvdata(dev);
162 struct snd_wss *chip = card->private_data;
163
164 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
165 chip->suspend(chip);
166 return 0;
167 }
168
snd_cs4231_resume(struct device * dev,unsigned int n)169 static int snd_cs4231_resume(struct device *dev, unsigned int n)
170 {
171 struct snd_card *card = dev_get_drvdata(dev);
172 struct snd_wss *chip = card->private_data;
173
174 chip->resume(chip);
175 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
176 return 0;
177 }
178 #endif
179
180 static struct isa_driver snd_cs4231_driver = {
181 .match = snd_cs4231_match,
182 .probe = snd_cs4231_probe,
183 .remove = snd_cs4231_remove,
184 #ifdef CONFIG_PM
185 .suspend = snd_cs4231_suspend,
186 .resume = snd_cs4231_resume,
187 #endif
188 .driver = {
189 .name = DEV_NAME
190 }
191 };
192
193 module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);
194
