1/*
2 *  Driver for generic ESS AudioDrive ESx688 soundcards
3 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 *   This program is free software; you can redistribute it and/or modify
7 *   it under the terms of the GNU General Public License as published by
8 *   the Free Software Foundation; either version 2 of the License, or
9 *   (at your option) any later version.
10 *
11 *   This program is distributed in the hope that it will be useful,
12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *   GNU General Public License for more details.
15 *
16 *   You should have received a copy of the GNU General Public License
17 *   along with this program; if not, write to the Free Software
18 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19 *
20 */
21
22#include <sound/driver.h>
23#include <linux/init.h>
24#include <linux/err.h>
25#include <linux/isa.h>
26#include <linux/time.h>
27#include <linux/wait.h>
28#include <linux/moduleparam.h>
29#include <asm/dma.h>
30#include <sound/core.h>
31#include <sound/es1688.h>
32#include <sound/mpu401.h>
33#include <sound/opl3.h>
34#define SNDRV_LEGACY_FIND_FREE_IRQ
35#define SNDRV_LEGACY_FIND_FREE_DMA
36#include <sound/initval.h>
37
38#define CRD_NAME "Generic ESS ES1688/ES688 AudioDrive"
39#define DEV_NAME "es1688"
40
41MODULE_DESCRIPTION(CRD_NAME);
42MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
43MODULE_LICENSE("GPL");
44MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
45	        "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
46	        "{ESS,ES688 AudioDrive,pnp:ESS6881},"
47	        "{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
48
49static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
50static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
51static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
52static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260 */
53static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
54static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
55static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
56static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
57
58module_param_array(index, int, NULL, 0444);
59MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
60module_param_array(id, charp, NULL, 0444);
61MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
62module_param_array(enable, bool, NULL, 0444);
63MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
64module_param_array(port, long, NULL, 0444);
65MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
66module_param_array(mpu_port, long, NULL, 0444);
67MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
68module_param_array(irq, int, NULL, 0444);
69MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
70module_param_array(mpu_irq, int, NULL, 0444);
71MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
72module_param_array(dma8, int, NULL, 0444);
73MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
74
75static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
76{
77	return enable[n];
78}
79
80static int __devinit snd_es1688_legacy_create(struct snd_card *card,
81		struct device *dev, unsigned int n, struct snd_es1688 **rchip)
82{
83	static long possible_ports[] = {0x220, 0x240, 0x260};
84	static int possible_irqs[] = {5, 9, 10, 7, -1};
85	static int possible_dmas[] = {1, 3, 0, -1};
86
87	int i, error;
88
89	if (irq[n] == SNDRV_AUTO_IRQ) {
90		irq[n] = snd_legacy_find_free_irq(possible_irqs);
91		if (irq[n] < 0) {
92			snd_printk(KERN_ERR "%s: unable to find a free IRQ\n",
93				dev->bus_id);
94			return -EBUSY;
95		}
96	}
97	if (dma8[n] == SNDRV_AUTO_DMA) {
98		dma8[n] = snd_legacy_find_free_dma(possible_dmas);
99		if (dma8[n] < 0) {
100			snd_printk(KERN_ERR "%s: unable to find a free DMA\n",
101				dev->bus_id);
102			return -EBUSY;
103		}
104	}
105
106	if (port[n] != SNDRV_AUTO_PORT)
107		return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
108				mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
109
110	i = 0;
111	do {
112		port[n] = possible_ports[i];
113		error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
114				mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
115	} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
116
117	return error;
118}
119
120static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
121{
122	struct snd_card *card;
123	struct snd_es1688 *chip;
124	struct snd_opl3 *opl3;
125	struct snd_pcm *pcm;
126	int error;
127
128	card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
129	if (!card)
130		return -EINVAL;
131
132	error = snd_es1688_legacy_create(card, dev, n, &chip);
133	if (error < 0)
134		goto out;
135
136	error = snd_es1688_pcm(chip, 0, &pcm);
137	if (error < 0)
138		goto out;
139
140	error = snd_es1688_mixer(chip);
141	if (error < 0)
142		goto out;
143
144	strcpy(card->driver, "ES1688");
145	strcpy(card->shortname, pcm->name);
146	sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name,
147		chip->port, chip->irq, chip->dma8);
148
149	if (snd_opl3_create(card, chip->port, chip->port + 2,
150			OPL3_HW_OPL3, 0, &opl3) < 0)
151		printk(KERN_WARNING "%s: opl3 not detected at 0x%lx\n",
152			dev->bus_id, chip->port);
153	else {
154		error =	snd_opl3_hwdep_new(opl3, 0, 1, NULL);
155		if (error < 0)
156			goto out;
157	}
158
159	if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
160			chip->mpu_port > 0) {
161		error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
162				chip->mpu_port, 0,
163				mpu_irq[n], IRQF_DISABLED, NULL);
164		if (error < 0)
165			goto out;
166	}
167
168	snd_card_set_dev(card, dev);
169
170	error = snd_card_register(card);
171	if (error < 0)
172		goto out;
173
174	dev_set_drvdata(dev, card);
175	return 0;
176
177out:	snd_card_free(card);
178	return error;
179}
180
181static int __devexit snd_es1688_remove(struct device *dev, unsigned int n)
182{
183	snd_card_free(dev_get_drvdata(dev));
184	dev_set_drvdata(dev, NULL);
185	return 0;
186}
187
188static struct isa_driver snd_es1688_driver = {
189	.match		= snd_es1688_match,
190	.probe		= snd_es1688_probe,
191	.remove		= snd_es1688_remove,
192	.driver		= {
193		.name	= DEV_NAME
194	}
195};
196
197static int __init alsa_card_es1688_init(void)
198{
199	return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
200}
201
202static void __exit alsa_card_es1688_exit(void)
203{
204	isa_unregister_driver(&snd_es1688_driver);
205}
206
207module_init(alsa_card_es1688_init);
208module_exit(alsa_card_es1688_exit);
209