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 | |
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 | |
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(parent: dev, idx: index[n], xid: id[n], THIS_MODULE, extra_size: 0, card_ret: &card); |
83 | if (error < 0) |
84 | return error; |
85 | |
86 | error = snd_wss_create(card, port: port[n], cport: -1, irq: irq[n], dma1: dma1[n], dma2: dma2[n], |
87 | WSS_HW_DETECT, hwshare: 0, rchip: &chip); |
88 | if (error < 0) |
89 | return error; |
90 | |
91 | card->private_data = chip; |
92 | |
93 | error = snd_wss_pcm(chip, device: 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(buf: card->longname, size: sizeof(card->longname), |
102 | fmt: "%s at 0x%lx, irq %d, dma %d" , |
103 | chip->pcm->name, chip->port, irq[n], dma1[n]); |
104 | else |
105 | scnprintf(buf: card->longname, size: sizeof(card->longname), |
106 | fmt: "%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, device: 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, device: 0, MPU401_HW_CS4232, |
121 | port: mpu_port[n], info_flags: 0, irq: 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, data: card); |
131 | return 0; |
132 | } |
133 | |
134 | #ifdef CONFIG_PM |
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 | |
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 | |