1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Sound Core PDAudioCF soundcard |
4 | * |
5 | * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> |
6 | */ |
7 | |
8 | #include <sound/core.h> |
9 | #include <linux/slab.h> |
10 | #include <linux/module.h> |
11 | #include <pcmcia/ciscode.h> |
12 | #include <pcmcia/cisreg.h> |
13 | #include "pdaudiocf.h" |
14 | #include <sound/initval.h> |
15 | #include <linux/init.h> |
16 | |
17 | /* |
18 | */ |
19 | |
20 | #define CARD_NAME "PDAudio-CF" |
21 | |
22 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>" ); |
23 | MODULE_DESCRIPTION("Sound Core " CARD_NAME); |
24 | MODULE_LICENSE("GPL" ); |
25 | |
26 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
27 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
28 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ |
29 | |
30 | module_param_array(index, int, NULL, 0444); |
31 | MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard." ); |
32 | module_param_array(id, charp, NULL, 0444); |
33 | MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard." ); |
34 | module_param_array(enable, bool, NULL, 0444); |
35 | MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard." ); |
36 | |
37 | /* |
38 | */ |
39 | |
40 | static struct snd_card *card_list[SNDRV_CARDS]; |
41 | |
42 | /* |
43 | * prototypes |
44 | */ |
45 | static int pdacf_config(struct pcmcia_device *link); |
46 | static void snd_pdacf_detach(struct pcmcia_device *p_dev); |
47 | |
48 | static void pdacf_release(struct pcmcia_device *link) |
49 | { |
50 | free_irq(link->irq, link->priv); |
51 | pcmcia_disable_device(p_dev: link); |
52 | } |
53 | |
54 | /* |
55 | * destructor |
56 | */ |
57 | static int snd_pdacf_free(struct snd_pdacf *pdacf) |
58 | { |
59 | struct pcmcia_device *link = pdacf->p_dev; |
60 | |
61 | pdacf_release(link); |
62 | |
63 | card_list[pdacf->index] = NULL; |
64 | pdacf->card = NULL; |
65 | |
66 | kfree(objp: pdacf); |
67 | return 0; |
68 | } |
69 | |
70 | static int snd_pdacf_dev_free(struct snd_device *device) |
71 | { |
72 | struct snd_pdacf *chip = device->device_data; |
73 | return snd_pdacf_free(pdacf: chip); |
74 | } |
75 | |
76 | /* |
77 | * snd_pdacf_attach - attach callback for cs |
78 | */ |
79 | static int snd_pdacf_probe(struct pcmcia_device *link) |
80 | { |
81 | int i, err; |
82 | struct snd_pdacf *pdacf; |
83 | struct snd_card *card; |
84 | static const struct snd_device_ops ops = { |
85 | .dev_free = snd_pdacf_dev_free, |
86 | }; |
87 | |
88 | snd_printdd(KERN_DEBUG "pdacf_attach called\n" ); |
89 | /* find an empty slot from the card list */ |
90 | for (i = 0; i < SNDRV_CARDS; i++) { |
91 | if (! card_list[i]) |
92 | break; |
93 | } |
94 | if (i >= SNDRV_CARDS) { |
95 | snd_printk(KERN_ERR "pdacf: too many cards found\n" ); |
96 | return -EINVAL; |
97 | } |
98 | if (! enable[i]) |
99 | return -ENODEV; /* disabled explicitly */ |
100 | |
101 | /* ok, create a card instance */ |
102 | err = snd_card_new(parent: &link->dev, idx: index[i], xid: id[i], THIS_MODULE, |
103 | extra_size: 0, card_ret: &card); |
104 | if (err < 0) { |
105 | snd_printk(KERN_ERR "pdacf: cannot create a card instance\n" ); |
106 | return err; |
107 | } |
108 | |
109 | pdacf = snd_pdacf_create(card); |
110 | if (!pdacf) { |
111 | snd_card_free(card); |
112 | return -ENOMEM; |
113 | } |
114 | |
115 | err = snd_device_new(card, type: SNDRV_DEV_LOWLEVEL, device_data: pdacf, ops: &ops); |
116 | if (err < 0) { |
117 | kfree(objp: pdacf); |
118 | snd_card_free(card); |
119 | return err; |
120 | } |
121 | |
122 | pdacf->index = i; |
123 | card_list[i] = card; |
124 | |
125 | pdacf->p_dev = link; |
126 | link->priv = pdacf; |
127 | |
128 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; |
129 | link->resource[0]->end = 16; |
130 | |
131 | link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; |
132 | link->config_index = 1; |
133 | link->config_regs = PRESENT_OPTION; |
134 | |
135 | return pdacf_config(link); |
136 | } |
137 | |
138 | |
139 | /** |
140 | * snd_pdacf_assign_resources - initialize the hardware and card instance. |
141 | * @pdacf: context |
142 | * @port: i/o port for the card |
143 | * @irq: irq number for the card |
144 | * |
145 | * this function assigns the specified port and irq, boot the card, |
146 | * create pcm and control instances, and initialize the rest hardware. |
147 | * |
148 | * returns 0 if successful, or a negative error code. |
149 | */ |
150 | static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq) |
151 | { |
152 | int err; |
153 | struct snd_card *card = pdacf->card; |
154 | |
155 | snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n" , port, irq); |
156 | pdacf->port = port; |
157 | pdacf->irq = irq; |
158 | pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; |
159 | |
160 | err = snd_pdacf_ak4117_create(pdacf); |
161 | if (err < 0) |
162 | return err; |
163 | |
164 | strcpy(p: card->driver, q: "PDAudio-CF" ); |
165 | sprintf(buf: card->shortname, fmt: "Core Sound %s" , card->driver); |
166 | sprintf(buf: card->longname, fmt: "%s at 0x%x, irq %i" , |
167 | card->shortname, port, irq); |
168 | |
169 | err = snd_pdacf_pcm_new(chip: pdacf); |
170 | if (err < 0) |
171 | return err; |
172 | |
173 | err = snd_card_register(card); |
174 | if (err < 0) |
175 | return err; |
176 | |
177 | return 0; |
178 | } |
179 | |
180 | |
181 | /* |
182 | * snd_pdacf_detach - detach callback for cs |
183 | */ |
184 | static void snd_pdacf_detach(struct pcmcia_device *link) |
185 | { |
186 | struct snd_pdacf *chip = link->priv; |
187 | |
188 | snd_printdd(KERN_DEBUG "pdacf_detach called\n" ); |
189 | |
190 | if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) |
191 | snd_pdacf_powerdown(chip); |
192 | chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ |
193 | snd_card_disconnect(card: chip->card); |
194 | snd_card_free_when_closed(card: chip->card); |
195 | } |
196 | |
197 | /* |
198 | * configuration callback |
199 | */ |
200 | |
201 | static int pdacf_config(struct pcmcia_device *link) |
202 | { |
203 | struct snd_pdacf *pdacf = link->priv; |
204 | int ret; |
205 | |
206 | snd_printdd(KERN_DEBUG "pdacf_config called\n" ); |
207 | link->config_index = 0x5; |
208 | link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; |
209 | |
210 | ret = pcmcia_request_io(p_dev: link); |
211 | if (ret) |
212 | goto failed_preirq; |
213 | |
214 | ret = request_threaded_irq(irq: link->irq, handler: pdacf_interrupt, |
215 | thread_fn: pdacf_threaded_irq, |
216 | IRQF_SHARED, name: link->devname, dev: link->priv); |
217 | if (ret) |
218 | goto failed_preirq; |
219 | |
220 | ret = pcmcia_enable_device(p_dev: link); |
221 | if (ret) |
222 | goto failed; |
223 | |
224 | if (snd_pdacf_assign_resources(pdacf, port: link->resource[0]->start, |
225 | irq: link->irq) < 0) |
226 | goto failed; |
227 | |
228 | pdacf->card->sync_irq = link->irq; |
229 | return 0; |
230 | |
231 | failed: |
232 | free_irq(link->irq, link->priv); |
233 | failed_preirq: |
234 | pcmcia_disable_device(p_dev: link); |
235 | return -ENODEV; |
236 | } |
237 | |
238 | #ifdef CONFIG_PM |
239 | |
240 | static int pdacf_suspend(struct pcmcia_device *link) |
241 | { |
242 | struct snd_pdacf *chip = link->priv; |
243 | |
244 | snd_printdd(KERN_DEBUG "SUSPEND\n" ); |
245 | if (chip) { |
246 | snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n" ); |
247 | snd_pdacf_suspend(chip); |
248 | } |
249 | |
250 | return 0; |
251 | } |
252 | |
253 | static int pdacf_resume(struct pcmcia_device *link) |
254 | { |
255 | struct snd_pdacf *chip = link->priv; |
256 | |
257 | snd_printdd(KERN_DEBUG "RESUME\n" ); |
258 | if (pcmcia_dev_present(p_dev: link)) { |
259 | if (chip) { |
260 | snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n" ); |
261 | snd_pdacf_resume(chip); |
262 | } |
263 | } |
264 | snd_printdd(KERN_DEBUG "resume done!\n" ); |
265 | |
266 | return 0; |
267 | } |
268 | |
269 | #endif |
270 | |
271 | /* |
272 | * Module entry points |
273 | */ |
274 | static const struct pcmcia_device_id snd_pdacf_ids[] = { |
275 | /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ |
276 | PCMCIA_DEVICE_PROD_ID12("Core Sound" ,"PDAudio-CF" ,0x396d19d2,0x71717b49), |
277 | PCMCIA_DEVICE_NULL |
278 | }; |
279 | MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); |
280 | |
281 | static struct pcmcia_driver pdacf_cs_driver = { |
282 | .owner = THIS_MODULE, |
283 | .name = "snd-pdaudiocf" , |
284 | .probe = snd_pdacf_probe, |
285 | .remove = snd_pdacf_detach, |
286 | .id_table = snd_pdacf_ids, |
287 | #ifdef CONFIG_PM |
288 | .suspend = pdacf_suspend, |
289 | .resume = pdacf_resume, |
290 | #endif |
291 | }; |
292 | module_pcmcia_driver(pdacf_cs_driver); |
293 | |