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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");
26MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
27
28static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
29static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
30static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
31static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
32static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
33static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
34static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
35static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
36static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
37
38module_param_array(index, int, NULL, 0444);
39MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
40module_param_array(id, charp, NULL, 0444);
41MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
42module_param_array(enable, bool, NULL, 0444);
43MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
44module_param_hw_array(port, long, ioport, NULL, 0444);
45MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
46module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
47MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
48module_param_hw_array(irq, int, irq, NULL, 0444);
49MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
50module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
51MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
52module_param_hw_array(dma1, int, dma, NULL, 0444);
53MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
54module_param_hw_array(dma2, int, dma, NULL, 0444);
55MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
56
57static int snd_cs4231_match(struct device *dev, unsigned int n)
58{
59 if (!enable[n])
60 return 0;
61
62 if (port[n] == SNDRV_AUTO_PORT) {
63 dev_err(dev, "please specify port\n");
64 return 0;
65 }
66 if (irq[n] == SNDRV_AUTO_IRQ) {
67 dev_err(dev, "please specify irq\n");
68 return 0;
69 }
70 if (dma1[n] == SNDRV_AUTO_DMA) {
71 dev_err(dev, "please specify dma1\n");
72 return 0;
73 }
74 return 1;
75}
76
77static int snd_cs4231_probe(struct device *dev, unsigned int n)
78{
79 struct snd_card *card;
80 struct snd_wss *chip;
81 int error;
82
83 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
84 if (error < 0)
85 return error;
86
87 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
88 WSS_HW_DETECT, 0, &chip);
89 if (error < 0)
90 goto out;
91
92 card->private_data = chip;
93
94 error = snd_wss_pcm(chip, 0);
95 if (error < 0)
96 goto out;
97
98 strlcpy(card->driver, "CS4231", sizeof(card->driver));
99 strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
100
101 if (dma2[n] < 0)
102 snprintf(card->longname, sizeof(card->longname),
103 "%s at 0x%lx, irq %d, dma %d",
104 chip->pcm->name, chip->port, irq[n], dma1[n]);
105 else
106 snprintf(card->longname, sizeof(card->longname),
107 "%s at 0x%lx, irq %d, dma %d&%d",
108 chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
109
110 error = snd_wss_mixer(chip);
111 if (error < 0)
112 goto out;
113
114 error = snd_wss_timer(chip, 0);
115 if (error < 0)
116 goto out;
117
118 if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
119 if (mpu_irq[n] == SNDRV_AUTO_IRQ)
120 mpu_irq[n] = -1;
121 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
122 mpu_port[n], 0, mpu_irq[n],
123 NULL) < 0)
124 dev_warn(dev, "MPU401 not detected\n");
125 }
126
127 error = snd_card_register(card);
128 if (error < 0)
129 goto out;
130
131 dev_set_drvdata(dev, card);
132 return 0;
133
134out: snd_card_free(card);
135 return error;
136}
137
138static int snd_cs4231_remove(struct device *dev, unsigned int n)
139{
140 snd_card_free(dev_get_drvdata(dev));
141 return 0;
142}
143
144#ifdef CONFIG_PM
145static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
146{
147 struct snd_card *card = dev_get_drvdata(dev);
148 struct snd_wss *chip = card->private_data;
149
150 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
151 chip->suspend(chip);
152 return 0;
153}
154
155static int snd_cs4231_resume(struct device *dev, unsigned int n)
156{
157 struct snd_card *card = dev_get_drvdata(dev);
158 struct snd_wss *chip = card->private_data;
159
160 chip->resume(chip);
161 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
162 return 0;
163}
164#endif
165
166static struct isa_driver snd_cs4231_driver = {
167 .match = snd_cs4231_match,
168 .probe = snd_cs4231_probe,
169 .remove = snd_cs4231_remove,
170#ifdef CONFIG_PM
171 .suspend = snd_cs4231_suspend,
172 .resume = snd_cs4231_resume,
173#endif
174 .driver = {
175 .name = DEV_NAME
176 }
177};
178
179module_isa_driver(snd_cs4231_driver, SNDRV_CARDS);
180
