aboutsummaryrefslogtreecommitdiff
path: root/sound/pcmcia/vx/vx_entry.c
blob: 332bbca3dfc4ff0459ca7b57526204c90e4a268c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
/*
 * Driver for Digigram VXpocket soundcards
 *
 * PCMCIA entry part
 *
 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <sound/driver.h>
#include <sound/core.h>
#include "vxpocket.h"
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>


MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("Common routines for Digigram PCMCIA VX drivers");
MODULE_LICENSE("GPL");

/*
 * prototypes
 */
static void vxpocket_config(dev_link_t *link);
static int vxpocket_event(event_t event, int priority, event_callback_args_t *args);


static void vxpocket_release(dev_link_t *link)
{
	if (link->state & DEV_CONFIG) {
		/* release cs resources */
		pcmcia_release_configuration(link->handle);
		pcmcia_release_io(link->handle, &link->io);
		pcmcia_release_irq(link->handle, &link->irq);
		link->state &= ~DEV_CONFIG;
	}
}

/*
 * destructor
 */
static int snd_vxpocket_free(vx_core_t *chip)
{
	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
	struct snd_vxp_entry *hw;
	dev_link_t *link = &vxp->link;

	vxpocket_release(link);

	/* Break the link with Card Services */
	if (link->handle)
		pcmcia_deregister_client(link->handle);

	hw = vxp->hw_entry;
	if (hw)
		hw->card_list[vxp->index] = NULL;
	chip->card = NULL;
	kfree(chip->dev);

	snd_vx_free_firmware(chip);
	kfree(chip);
	return 0;
}

static int snd_vxpocket_dev_free(snd_device_t *device)
{
	vx_core_t *chip = device->device_data;
	return snd_vxpocket_free(chip);
}

/*
 * snd_vxpocket_attach - attach callback for cs
 * @hw: the hardware information
 */
dev_link_t *snd_vxpocket_attach(struct snd_vxp_entry *hw)
{
	client_reg_t client_reg;	/* Register with cardmgr */
	dev_link_t *link;		/* Info for cardmgr */
	int i, ret;
	vx_core_t *chip;
	struct snd_vxpocket *vxp;
	snd_card_t *card;
	static snd_device_ops_t ops = {
		.dev_free =	snd_vxpocket_dev_free,
	};

	snd_printdd(KERN_DEBUG "vxpocket_attach called\n");
	/* find an empty slot from the card list */
	for (i = 0; i < SNDRV_CARDS; i++) {
		if (! hw->card_list[i])
			break;
	}
	if (i >= SNDRV_CARDS) {
		snd_printk(KERN_ERR "vxpocket: too many cards found\n");
		return NULL;
	}
	if (! hw->enable_table[i])
		return NULL; /* disabled explicitly */

	/* ok, create a card instance */
	card = snd_card_new(hw->index_table[i], hw->id_table[i], THIS_MODULE, 0);
	if (card == NULL) {
		snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
		return NULL;
	}

	chip = snd_vx_create(card, hw->hardware, hw->ops,
			     sizeof(struct snd_vxpocket) - sizeof(vx_core_t));
	if (! chip)
		return NULL;

#ifdef SND_VX_FW_LOADER
	/* fake a device here since pcmcia doesn't give a valid device... */
	chip->dev = kcalloc(1, sizeof(*chip->dev), GFP_KERNEL);
	if (! chip->dev) {
		snd_printk(KERN_ERR "vxp: can't malloc chip->dev\n");
		kfree(chip);
		snd_card_free(card);
		return NULL;
	}
	device_initialize(chip->dev);
	sprintf(chip->dev->bus_id, "vxpocket%d", i);
#endif

	if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops) < 0) {
		kfree(chip);
		snd_card_free(card);
		return NULL;
	}

	vxp = (struct snd_vxpocket *)chip;
	vxp->index = i;
	vxp->hw_entry = hw;
	chip->ibl.size = hw->ibl[i];
	hw->card_list[i] = chip;

	link = &vxp->link;
	link->priv = chip;

	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	link->io.NumPorts1 = 16;

	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
	// link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;

	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
	link->irq.Handler = &snd_vx_irq_handler;
	link->irq.Instance = chip;

	link->conf.Attributes = CONF_ENABLE_IRQ;
	link->conf.Vcc = 50;
	link->conf.IntType = INT_MEMORY_AND_IO;
	link->conf.ConfigIndex = 1;
	link->conf.Present = PRESENT_OPTION;

	/* Register with Card Services */
	memset(&client_reg, 0, sizeof(client_reg));
	client_reg.dev_info = hw->dev_info;
	client_reg.EventMask = 
		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL
#ifdef CONFIG_PM
		| CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET
		| CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME
#endif
		;
	client_reg.event_handler = &vxpocket_event;
	client_reg.Version = 0x0210;
	client_reg.event_callback_args.client_data = link;

	ret = pcmcia_register_client(&link->handle, &client_reg);
	if (ret != CS_SUCCESS) {
		cs_error(link->handle, RegisterClient, ret);
		snd_card_free(card);
		return NULL;
	}

	/* Chain drivers */
	link->next = hw->dev_list;
	hw->dev_list = link;

	/* snd_card_set_pm_callback(card, snd_vxpocket_suspend, snd_vxpocket_resume, chip); */

	return link;
}


/**
 * snd_vxpocket_assign_resources - initialize the hardware and card instance.
 * @port: i/o port for the card
 * @irq: irq number for the card
 *
 * this function assigns the specified port and irq, boot the card,
 * create pcm and control instances, and initialize the rest hardware.
 *
 * returns 0 if successful, or a negative error code.
 */
static int snd_vxpocket_assign_resources(vx_core_t *chip, int port, int irq)
{
	int err;
	snd_card_t *card = chip->card;
	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;

	snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
	vxp->port = port;

	sprintf(card->shortname, "Digigram %s", card->driver);
	sprintf(card->longname, "%s at 0x%x, irq %i",
		card->shortname, port, irq);

	chip->irq = irq;

	if ((err = snd_vx_setup_firmware(chip)) < 0)
		return err;

	return 0;
}


/*
 * snd_vxpocket_detach - detach callback for cs
 * @hw: the hardware information
 */
void snd_vxpocket_detach(struct snd_vxp_entry *hw, dev_link_t *link)
{
	vx_core_t *chip;

	if (! link)
		return;

	chip = link->priv;

	snd_printdd(KERN_DEBUG "vxpocket_detach called\n");
	/* Remove the interface data from the linked list */
	if (hw) {
		dev_link_t **linkp;
		/* Locate device structure */
		for (linkp = &hw->dev_list; *linkp; linkp = &(*linkp)->next)
			if (*linkp == link) {
				*linkp = link->next;
				break;
			}
	}
	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
	snd_card_disconnect(chip->card);
	snd_card_free_in_thread(chip->card);
}

/*
 * configuration callback
 */

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

static void vxpocket_config(dev_link_t *link)
{
	client_handle_t handle = link->handle;
	vx_core_t *chip = link->priv;
	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
	tuple_t tuple;
	cisparse_t *parse = NULL;
	u_short buf[32];
	int last_fn, last_ret;

	snd_printdd(KERN_DEBUG "vxpocket_config called\n");
	parse = kmalloc(sizeof(*parse), GFP_KERNEL);
	if (! parse) {
		snd_printk(KERN_ERR "vx: cannot allocate\n");
		return;
	}
	tuple.Attributes = 0;
	tuple.TupleData = (cisdata_t *)buf;
	tuple.TupleDataMax = sizeof(buf);
	tuple.TupleOffset = 0;
	tuple.DesiredTuple = CISTPL_CONFIG;
	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
	CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
	CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse));
	link->conf.ConfigBase = parse->config.base;
	link->conf.Present = parse->config.rmask[0];

	/* Configure card */
	link->state |= DEV_CONFIG;

	CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io));
	CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));

	if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
		goto failed;

	link->dev = &vxp->node;
	link->state &= ~DEV_CONFIG_PENDING;
	kfree(parse);
	return;

cs_failed:
	cs_error(link->handle, last_fn, last_ret);
failed:
	pcmcia_release_configuration(link->handle);
	pcmcia_release_io(link->handle, &link->io);
	pcmcia_release_irq(link->handle, &link->irq);
	link->state &= ~DEV_CONFIG;
	kfree(parse);
}


/*
 * event callback
 */
static int vxpocket_event(event_t event, int priority, event_callback_args_t *args)
{
	dev_link_t *link = args->client_data;
	vx_core_t *chip = link->priv;

	switch (event) {
	case CS_EVENT_CARD_REMOVAL:
		snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n");
		link->state &= ~DEV_PRESENT;
		if (link->state & DEV_CONFIG) {
			chip->chip_status |= VX_STAT_IS_STALE;
		}
		break;
	case CS_EVENT_CARD_INSERTION:
		snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");
		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
		vxpocket_config(link);
		break;
#ifdef CONFIG_PM
	case CS_EVENT_PM_SUSPEND:
		snd_printdd(KERN_DEBUG "SUSPEND\n");
		link->state |= DEV_SUSPEND;
		if (chip && chip->card->pm_suspend) {
			snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
			chip->card->pm_suspend(chip->card, PMSG_SUSPEND);
		}
		/* Fall through... */
	case CS_EVENT_RESET_PHYSICAL:
		snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n");
		if (link->state & DEV_CONFIG)
			pcmcia_release_configuration(link->handle);
		break;
	case CS_EVENT_PM_RESUME:
		snd_printdd(KERN_DEBUG "RESUME\n");
		link->state &= ~DEV_SUSPEND;
		/* Fall through... */
	case CS_EVENT_CARD_RESET:
		snd_printdd(KERN_DEBUG "CARD_RESET\n");
		if (DEV_OK(link)) {
			//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
			snd_printdd(KERN_DEBUG "requestconfig...\n");
			pcmcia_request_configuration(link->handle, &link->conf);
			if (chip && chip->card->pm_resume) {
				snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
				chip->card->pm_resume(chip->card);
			}
		}
		snd_printdd(KERN_DEBUG "resume done!\n");
		break;
#endif
	}
	return 0;
}

/*
 * exported stuffs
 */
EXPORT_SYMBOL(snd_vxpocket_ops);
EXPORT_SYMBOL(snd_vxpocket_attach);
EXPORT_SYMBOL(snd_vxpocket_detach);