xref: /openbmc/linux/sound/pcmcia/vx/vxpocket.c (revision bbaf1ff0)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Driver for Digigram VXpocket V2/440 soundcards
4  *
5  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
6 
7  */
8 
9 
10 #include <linux/init.h>
11 #include <linux/module.h>
12 #include <linux/slab.h>
13 #include <sound/core.h>
14 #include "vxpocket.h"
15 #include <pcmcia/ciscode.h>
16 #include <pcmcia/cisreg.h>
17 #include <sound/initval.h>
18 #include <sound/tlv.h>
19 
20 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
21 MODULE_DESCRIPTION("Digigram VXPocket");
22 MODULE_LICENSE("GPL");
23 
24 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
25 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
26 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable switches */
27 static int ibl[SNDRV_CARDS];
28 
29 module_param_array(index, int, NULL, 0444);
30 MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
31 module_param_array(id, charp, NULL, 0444);
32 MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
33 module_param_array(enable, bool, NULL, 0444);
34 MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
35 module_param_array(ibl, int, NULL, 0444);
36 MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
37 
38 
39 /*
40  */
41 
42 static unsigned int card_alloc;
43 
44 
45 /*
46  */
47 static void vxpocket_release(struct pcmcia_device *link)
48 {
49 	free_irq(link->irq, link->priv);
50 	pcmcia_disable_device(link);
51 }
52 
53 /*
54  * Hardware information
55  */
56 
57 /* VX-pocket V2
58  *
59  * 1 DSP, 1 sync UER
60  * 1 programmable clock (NIY)
61  * 1 stereo analog input (line/micro)
62  * 1 stereo analog output
63  * Only output levels can be modified
64  */
65 
66 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
67 
68 static const struct snd_vx_hardware vxpocket_hw = {
69 	.name = "VXPocket",
70 	.type = VX_TYPE_VXPOCKET,
71 
72 	/* hardware specs */
73 	.num_codecs = 1,
74 	.num_ins = 1,
75 	.num_outs = 1,
76 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
77 	.output_level_db_scale = db_scale_old_vol,
78 };
79 
80 /* VX-pocket 440
81  *
82  * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
83  * SMPTE (NIY)
84  * 2 stereo analog input (line/micro)
85  * 2 stereo analog output
86  * Only output levels can be modified
87  * UER, but only for the first two inputs and outputs.
88  */
89 
90 static const struct snd_vx_hardware vxp440_hw = {
91 	.name = "VXPocket440",
92 	.type = VX_TYPE_VXP440,
93 
94 	/* hardware specs */
95 	.num_codecs = 2,
96 	.num_ins = 2,
97 	.num_outs = 2,
98 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
99 	.output_level_db_scale = db_scale_old_vol,
100 };
101 
102 
103 /*
104  * create vxpocket instance
105  */
106 static int snd_vxpocket_new(struct snd_card *card, int ibl,
107 			    struct pcmcia_device *link,
108 			    struct snd_vxpocket **chip_ret)
109 {
110 	struct vx_core *chip;
111 	struct snd_vxpocket *vxp;
112 
113 	chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
114 			     sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
115 	if (!chip)
116 		return -ENOMEM;
117 
118 	chip->ibl.size = ibl;
119 
120 	vxp = to_vxpocket(chip);
121 
122 	vxp->p_dev = link;
123 	link->priv = chip;
124 
125 	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
126 	link->resource[0]->end = 16;
127 
128 	link->config_flags |= CONF_ENABLE_IRQ;
129 	link->config_index = 1;
130 	link->config_regs = PRESENT_OPTION;
131 
132 	*chip_ret = vxp;
133 	return 0;
134 }
135 
136 
137 /**
138  * snd_vxpocket_assign_resources - initialize the hardware and card instance.
139  * @chip: VX core instance
140  * @port: i/o port for the card
141  * @irq: irq number for the card
142  *
143  * this function assigns the specified port and irq, boot the card,
144  * create pcm and control instances, and initialize the rest hardware.
145  *
146  * returns 0 if successful, or a negative error code.
147  */
148 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
149 {
150 	int err;
151 	struct snd_card *card = chip->card;
152 	struct snd_vxpocket *vxp = to_vxpocket(chip);
153 
154 	snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
155 	vxp->port = port;
156 
157 	sprintf(card->shortname, "Digigram %s", card->driver);
158 	sprintf(card->longname, "%s at 0x%x, irq %i",
159 		card->shortname, port, irq);
160 
161 	chip->irq = irq;
162 	card->sync_irq = chip->irq;
163 
164 	err = snd_vx_setup_firmware(chip);
165 	if (err < 0)
166 		return err;
167 
168 	return 0;
169 }
170 
171 
172 /*
173  * configuration callback
174  */
175 
176 static int vxpocket_config(struct pcmcia_device *link)
177 {
178 	struct vx_core *chip = link->priv;
179 	int ret;
180 
181 	snd_printdd(KERN_DEBUG "vxpocket_config called\n");
182 
183 	/* redefine hardware record according to the VERSION1 string */
184 	if (!strcmp(link->prod_id[1], "VX-POCKET")) {
185 		snd_printdd("VX-pocket is detected\n");
186 	} else {
187 		snd_printdd("VX-pocket 440 is detected\n");
188 		/* overwrite the hardware information */
189 		chip->hw = &vxp440_hw;
190 		chip->type = vxp440_hw.type;
191 		strcpy(chip->card->driver, vxp440_hw.name);
192 	}
193 
194 	ret = pcmcia_request_io(link);
195 	if (ret)
196 		goto failed_preirq;
197 
198 	ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
199 				   snd_vx_threaded_irq_handler,
200 				   IRQF_SHARED, link->devname, link->priv);
201 	if (ret)
202 		goto failed_preirq;
203 
204 	ret = pcmcia_enable_device(link);
205 	if (ret)
206 		goto failed;
207 
208 	chip->dev = &link->dev;
209 
210 	if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
211 						link->irq) < 0)
212 		goto failed;
213 
214 	return 0;
215 
216  failed:
217 	free_irq(link->irq, link->priv);
218 failed_preirq:
219 	pcmcia_disable_device(link);
220 	return -ENODEV;
221 }
222 
223 #ifdef CONFIG_PM
224 
225 static int vxp_suspend(struct pcmcia_device *link)
226 {
227 	struct vx_core *chip = link->priv;
228 
229 	snd_printdd(KERN_DEBUG "SUSPEND\n");
230 	if (chip) {
231 		snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
232 		snd_vx_suspend(chip);
233 	}
234 
235 	return 0;
236 }
237 
238 static int vxp_resume(struct pcmcia_device *link)
239 {
240 	struct vx_core *chip = link->priv;
241 
242 	snd_printdd(KERN_DEBUG "RESUME\n");
243 	if (pcmcia_dev_present(link)) {
244 		//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
245 		if (chip) {
246 			snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
247 			snd_vx_resume(chip);
248 		}
249 	}
250 	snd_printdd(KERN_DEBUG "resume done!\n");
251 
252 	return 0;
253 }
254 
255 #endif
256 
257 
258 /*
259  */
260 static int vxpocket_probe(struct pcmcia_device *p_dev)
261 {
262 	struct snd_card *card;
263 	struct snd_vxpocket *vxp;
264 	int i, err;
265 
266 	/* find an empty slot from the card list */
267 	for (i = 0; i < SNDRV_CARDS; i++) {
268 		if (!(card_alloc & (1 << i)))
269 			break;
270 	}
271 	if (i >= SNDRV_CARDS) {
272 		snd_printk(KERN_ERR "vxpocket: too many cards found\n");
273 		return -EINVAL;
274 	}
275 	if (! enable[i])
276 		return -ENODEV; /* disabled explicitly */
277 
278 	/* ok, create a card instance */
279 	err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
280 			   0, &card);
281 	if (err < 0) {
282 		snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
283 		return err;
284 	}
285 
286 	err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
287 	if (err < 0) {
288 		snd_card_free(card);
289 		return err;
290 	}
291 	card->private_data = vxp;
292 
293 	vxp->index = i;
294 	card_alloc |= 1 << i;
295 
296 	vxp->p_dev = p_dev;
297 
298 	return vxpocket_config(p_dev);
299 }
300 
301 static void vxpocket_detach(struct pcmcia_device *link)
302 {
303 	struct snd_vxpocket *vxp;
304 	struct vx_core *chip;
305 
306 	if (! link)
307 		return;
308 
309 	vxp = link->priv;
310 	chip = (struct vx_core *)vxp;
311 	card_alloc &= ~(1 << vxp->index);
312 
313 	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
314 	snd_card_disconnect(chip->card);
315 	vxpocket_release(link);
316 	snd_card_free_when_closed(chip->card);
317 }
318 
319 /*
320  * Module entry points
321  */
322 
323 static const struct pcmcia_device_id vxp_ids[] = {
324 	PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
325 	PCMCIA_DEVICE_NULL
326 };
327 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
328 
329 static struct pcmcia_driver vxp_cs_driver = {
330 	.owner		= THIS_MODULE,
331 	.name		= "snd-vxpocket",
332 	.probe		= vxpocket_probe,
333 	.remove		= vxpocket_detach,
334 	.id_table	= vxp_ids,
335 #ifdef CONFIG_PM
336 	.suspend	= vxp_suspend,
337 	.resume		= vxp_resume,
338 #endif
339 };
340 module_pcmcia_driver(vxp_cs_driver);
341