1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Generic driver for CS4231 chips
4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5 * Originally the CS4232/CS4232A driver, modified for use on CS4231 by
6 * Tugrul Galatali <galatalt@stuy.edu>
7 */
8
9 #include <linux/init.h>
10 #include <linux/err.h>
11 #include <linux/isa.h>
12 #include <linux/time.h>
13 #include <linux/wait.h>
14 #include <linux/module.h>
15 #include <sound/core.h>
16 #include <sound/wss.h>
17 #include <sound/mpu401.h>
18 #include <sound/initval.h>
19
20 #define CRD_NAME "Generic CS4231"
21 #define DEV_NAME "cs4231"
22
23 MODULE_DESCRIPTION(CRD_NAME);
24 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
25 MODULE_LICENSE("GPL");
26
27 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
28 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
29 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
30 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
31 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
32 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
33 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */
34 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
35 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
36
37 module_param_array(index, int, NULL, 0444);
38 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
39 module_param_array(id, charp, NULL, 0444);
40 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
41 module_param_array(enable, bool, NULL, 0444);
42 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
43 module_param_hw_array(port, long, ioport, NULL, 0444);
44 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
45 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
46 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
47 module_param_hw_array(irq, int, irq, NULL, 0444);
48 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
49 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
50 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
51 module_param_hw_array(dma1, int, dma, NULL, 0444);
52 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
53 module_param_hw_array(dma2, int, dma, NULL, 0444);
54 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
55
snd_cs4231_match(struct device * dev,unsigned int n)56 static int snd_cs4231_match(struct device *dev, unsigned int n)
57 {
58 if (!enable[n])
59 return 0;
60
61 if (port[n] == SNDRV_AUTO_PORT) {
62 dev_err(dev, "please specify port\n");
63 return 0;
64 }
65 if (irq[n] == SNDRV_AUTO_IRQ) {
66 dev_err(dev, "please specify irq\n");
67 return 0;
68 }
69 if (dma1[n] == SNDRV_AUTO_DMA) {
70 dev_err(dev, "please specify dma1\n");
71 return 0;
72 }
73 return 1;
74 }
75
snd_cs4231_probe(struct device * dev,unsigned int n)76 static int snd_cs4231_probe(struct device *dev, unsigned int n)
77 {
78 struct snd_card *card;
79 struct snd_wss *chip;
80 int error;
81
82 error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
83 if (error < 0)
84 return error;
85
86 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
87 WSS_HW_DETECT, 0, &chip);
88 if (error < 0)
89 return error;
90
91 card->private_data = chip;
92
93 error = snd_wss_pcm(chip, 0);
94 if (error < 0)
95 return error;
96
97 strscpy(card->driver, "CS4231", sizeof(card->driver));
98 strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
99
100 if (dma2[n] < 0)
101 scnprintf(card->longname, sizeof(card->longname),
102 "%s at 0x%lx, irq %d, dma %d",
103 chip->pcm->name, chip->port, irq[n], dma1[n]);
104 else
105 scnprintf(card->longname, sizeof(card->longname),
106 "%s at 0x%lx, irq %d, dma %d&%d",
107 chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
108
109 error = snd_wss_mixer(chip);
110 if (error < 0)
111 return error;
112
113 error = snd_wss_timer(chip, 0);
114 if (error < 0)
115 return error;
116
117 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
118 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
119 mpu_irq[n] = -1;
120 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
121 mpu_port[n], 0, mpu_irq[n],
122 NULL) < 0)
123 dev_warn(dev, "MPU401 not detected\n");
124 }
125
126 error = snd_card_register(card);
127 if (error < 0)
128 return error;
129
130 dev_set_drvdata(dev, card);
131 return 0;
132 }
133
134 #ifdef CONFIG_PM
snd_cs4231_suspend(struct device * dev,unsigned int n,pm_message_t state)135 static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
136 {
137 struct snd_card *card = dev_get_drvdata(dev);
138 struct snd_wss *chip = card->private_data;
139
140 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
141 chip->suspend(chip);
142 return 0;
143 }
144
snd_cs4231_resume(struct device * dev,unsigned int n)145 static int snd_cs4231_resume(struct device *dev, unsigned int n)
146 {
147 struct snd_card *card = dev_get_drvdata(dev);
148 struct snd_wss *chip = card->private_data;
149
150 chip->resume(chip);
151 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
152 return 0;
153 }
154 #endif
155
156 static struct isa_driver snd_cs4231_driver = {
157 .match = snd_cs4231_match,
158 .probe = snd_cs4231_probe,
159 #ifdef CONFIG_PM
160 .suspend = snd_cs4231_suspend,
161 .resume = snd_cs4231_resume,
162 #endif
163 .driver = {
164 .name = DEV_NAME
165 }
166 };
167
168 module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);
169