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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
23MODULE_DESCRIPTION(CRD_NAME);
24MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
25MODULE_LICENSE("GPL");
26
27static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
28static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
29static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
30static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
31static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
32static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
33static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
34static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
35static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
36
37module_param_array(index, int, NULL, 0444);
38MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
39module_param_array(id, charp, NULL, 0444);
40MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
41module_param_array(enable, bool, NULL, 0444);
42MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
43module_param_hw_array(port, long, ioport, NULL, 0444);
44MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
45module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
46MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
47module_param_hw_array(irq, int, irq, NULL, 0444);
48MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
49module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
50MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
51module_param_hw_array(dma1, int, dma, NULL, 0444);
52MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
53module_param_hw_array(dma2, int, dma, NULL, 0444);
54MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
55
56static 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
76static 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 snprintf(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 snprintf(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
135static 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
145static 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
156static 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
168module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);
169
