1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Gravis UltraSound Classic soundcard |
4 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
5 | */ |
6 | |
7 | #include <linux/init.h> |
8 | #include <linux/err.h> |
9 | #include <linux/isa.h> |
10 | #include <linux/delay.h> |
11 | #include <linux/time.h> |
12 | #include <linux/module.h> |
13 | #include <asm/dma.h> |
14 | #include <sound/core.h> |
15 | #include <sound/gus.h> |
16 | #define SNDRV_LEGACY_FIND_FREE_IRQ |
17 | #define SNDRV_LEGACY_FIND_FREE_DMA |
18 | #include <sound/initval.h> |
19 | |
20 | #define CRD_NAME "Gravis UltraSound Classic" |
21 | #define DEV_NAME "gusclassic" |
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; /* 0x220,0x230,0x240,0x250,0x260 */ |
31 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */ |
32 | static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ |
33 | static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ |
34 | static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; |
35 | /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ |
36 | static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; |
37 | static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; |
38 | |
39 | module_param_array(index, int, NULL, 0444); |
40 | MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard." ); |
41 | module_param_array(id, charp, NULL, 0444); |
42 | MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard." ); |
43 | module_param_array(enable, bool, NULL, 0444); |
44 | MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard." ); |
45 | module_param_hw_array(port, long, ioport, NULL, 0444); |
46 | MODULE_PARM_DESC(port, "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(dma1, int, dma, NULL, 0444); |
50 | MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver." ); |
51 | module_param_hw_array(dma2, int, dma, NULL, 0444); |
52 | MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver." ); |
53 | module_param_array(joystick_dac, int, NULL, 0444); |
54 | MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver." ); |
55 | module_param_array(channels, int, NULL, 0444); |
56 | MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver." ); |
57 | module_param_array(pcm_channels, int, NULL, 0444); |
58 | MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver." ); |
59 | |
60 | static int snd_gusclassic_match(struct device *dev, unsigned int n) |
61 | { |
62 | return enable[n]; |
63 | } |
64 | |
65 | static int snd_gusclassic_create(struct snd_card *card, |
66 | struct device *dev, unsigned int n, |
67 | struct snd_gus_card **rgus) |
68 | { |
69 | static const long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260}; |
70 | static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1}; |
71 | static const int possible_dmas[] = {5, 6, 7, 1, 3, -1}; |
72 | |
73 | int i, error; |
74 | |
75 | if (irq[n] == SNDRV_AUTO_IRQ) { |
76 | irq[n] = snd_legacy_find_free_irq(irq_table: possible_irqs); |
77 | if (irq[n] < 0) { |
78 | dev_err(dev, "unable to find a free IRQ\n" ); |
79 | return -EBUSY; |
80 | } |
81 | } |
82 | if (dma1[n] == SNDRV_AUTO_DMA) { |
83 | dma1[n] = snd_legacy_find_free_dma(dma_table: possible_dmas); |
84 | if (dma1[n] < 0) { |
85 | dev_err(dev, "unable to find a free DMA1\n" ); |
86 | return -EBUSY; |
87 | } |
88 | } |
89 | if (dma2[n] == SNDRV_AUTO_DMA) { |
90 | dma2[n] = snd_legacy_find_free_dma(dma_table: possible_dmas); |
91 | if (dma2[n] < 0) { |
92 | dev_err(dev, "unable to find a free DMA2\n" ); |
93 | return -EBUSY; |
94 | } |
95 | } |
96 | |
97 | if (port[n] != SNDRV_AUTO_PORT) |
98 | return snd_gus_create(card, port: port[n], irq: irq[n], dma1: dma1[n], dma2: dma2[n], |
99 | timer_dev: 0, voices: channels[n], pcm_channels: pcm_channels[n], effect: 0, rgus); |
100 | |
101 | i = 0; |
102 | do { |
103 | port[n] = possible_ports[i]; |
104 | error = snd_gus_create(card, port: port[n], irq: irq[n], dma1: dma1[n], dma2: dma2[n], |
105 | timer_dev: 0, voices: channels[n], pcm_channels: pcm_channels[n], effect: 0, rgus); |
106 | } while (error < 0 && ++i < ARRAY_SIZE(possible_ports)); |
107 | |
108 | return error; |
109 | } |
110 | |
111 | static int snd_gusclassic_detect(struct snd_gus_card *gus) |
112 | { |
113 | unsigned char d; |
114 | |
115 | snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, data: 0); /* reset GF1 */ |
116 | d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET); |
117 | if ((d & 0x07) != 0) { |
118 | snd_printdd("[0x%lx] check 1 failed - 0x%x\n" , gus->gf1.port, d); |
119 | return -ENODEV; |
120 | } |
121 | udelay(160); |
122 | snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, data: 1); /* release reset */ |
123 | udelay(160); |
124 | d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET); |
125 | if ((d & 0x07) != 1) { |
126 | snd_printdd("[0x%lx] check 2 failed - 0x%x\n" , gus->gf1.port, d); |
127 | return -ENODEV; |
128 | } |
129 | return 0; |
130 | } |
131 | |
132 | static int snd_gusclassic_probe(struct device *dev, unsigned int n) |
133 | { |
134 | struct snd_card *card; |
135 | struct snd_gus_card *gus; |
136 | int error; |
137 | |
138 | error = snd_devm_card_new(parent: dev, idx: index[n], xid: id[n], THIS_MODULE, extra_size: 0, card_ret: &card); |
139 | if (error < 0) |
140 | return error; |
141 | |
142 | if (pcm_channels[n] < 2) |
143 | pcm_channels[n] = 2; |
144 | |
145 | error = snd_gusclassic_create(card, dev, n, rgus: &gus); |
146 | if (error < 0) |
147 | return error; |
148 | |
149 | error = snd_gusclassic_detect(gus); |
150 | if (error < 0) |
151 | return error; |
152 | |
153 | gus->joystick_dac = joystick_dac[n]; |
154 | |
155 | error = snd_gus_initialize(gus); |
156 | if (error < 0) |
157 | return error; |
158 | |
159 | error = -ENODEV; |
160 | if (gus->max_flag || gus->ess_flag) { |
161 | dev_err(dev, "GUS Classic or ACE soundcard was " |
162 | "not detected at 0x%lx\n" , gus->gf1.port); |
163 | return error; |
164 | } |
165 | |
166 | error = snd_gf1_new_mixer(gus); |
167 | if (error < 0) |
168 | return error; |
169 | |
170 | error = snd_gf1_pcm_new(gus, pcm_dev: 0, control_index: 0); |
171 | if (error < 0) |
172 | return error; |
173 | |
174 | if (!gus->ace_flag) { |
175 | error = snd_gf1_rawmidi_new(gus, device: 0); |
176 | if (error < 0) |
177 | return error; |
178 | } |
179 | |
180 | sprintf(buf: card->longname + strlen(card->longname), |
181 | fmt: " at 0x%lx, irq %d, dma %d" , |
182 | gus->gf1.port, gus->gf1.irq, gus->gf1.dma1); |
183 | |
184 | if (gus->gf1.dma2 >= 0) |
185 | sprintf(buf: card->longname + strlen(card->longname), |
186 | fmt: "&%d" , gus->gf1.dma2); |
187 | |
188 | error = snd_card_register(card); |
189 | if (error < 0) |
190 | return error; |
191 | |
192 | dev_set_drvdata(dev, data: card); |
193 | return 0; |
194 | } |
195 | |
196 | static struct isa_driver snd_gusclassic_driver = { |
197 | .match = snd_gusclassic_match, |
198 | .probe = snd_gusclassic_probe, |
199 | #if 0 /* FIXME */ |
200 | .suspend = snd_gusclassic_suspend, |
201 | #endif |
202 | .driver = { |
203 | .name = DEV_NAME |
204 | } |
205 | }; |
206 | |
207 | module_isa_driver(snd_gusclassic_driver, SNDRV_CARDS); |
208 | |