2 * Copyright (c) 1998-2002 by Paul Davis <pbd@op.net>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #include <sound/driver.h>
21 #include <linux/init.h>
22 #include <linux/time.h>
23 #include <linux/wait.h>
24 #include <linux/firmware.h>
25 #include <sound/core.h>
26 #include <sound/snd_wavefront.h>
27 #include <sound/initval.h>
29 /* Control bits for the Load Control Register
32 #define FX_LSB_TRANSFER 0x01 /* transfer after DSP LSB byte written */
33 #define FX_MSB_TRANSFER 0x02 /* transfer after DSP MSB byte written */
34 #define FX_AUTO_INCR 0x04 /* auto-increment DSP address after transfer */
36 #define WAIT_IDLE 0xff
38 #ifdef CONFIG_SND_WAVEFRONT_FIRMWARE_IN_KERNEL
40 static const struct firmware yss225_registers_firmware = {
41 .data = (u8 *)yss225_registers,
42 .size = sizeof yss225_registers
47 wavefront_fx_idle (snd_wavefront_t *dev)
51 unsigned int x = 0x80;
53 for (i = 0; i < 1000; i++) {
54 x = inb (dev->fx_status);
55 if ((x & 0x80) == 0) {
61 snd_printk ("FX device never idle.\n");
69 wavefront_fx_mute (snd_wavefront_t *dev, int onoff)
72 if (!wavefront_fx_idle(dev)) {
76 outb (onoff ? 0x02 : 0x00, dev->fx_op);
80 wavefront_fx_memset (snd_wavefront_t *dev,
86 if (page < 0 || page > 7) {
87 snd_printk ("FX memset: "
88 "page must be >= 0 and <= 7\n");
92 if (addr < 0 || addr > 0x7f) {
93 snd_printk ("FX memset: "
94 "addr must be >= 0 and <= 7f\n");
100 outb (FX_LSB_TRANSFER, dev->fx_lcr);
101 outb (page, dev->fx_dsp_page);
102 outb (addr, dev->fx_dsp_addr);
103 outb ((data[0] >> 8), dev->fx_dsp_msb);
104 outb ((data[0] & 0xff), dev->fx_dsp_lsb);
106 snd_printk ("FX: addr %d:%x set to 0x%x\n",
107 page, addr, data[0]);
112 outb (FX_AUTO_INCR|FX_LSB_TRANSFER, dev->fx_lcr);
113 outb (page, dev->fx_dsp_page);
114 outb (addr, dev->fx_dsp_addr);
116 for (i = 0; i < cnt; i++) {
117 outb ((data[i] >> 8), dev->fx_dsp_msb);
118 outb ((data[i] & 0xff), dev->fx_dsp_lsb);
119 if (!wavefront_fx_idle (dev)) {
125 snd_printk ("FX memset "
126 "(0x%x, 0x%x, 0x%lx, %d) incomplete\n",
127 page, addr, (unsigned long) data, cnt);
136 snd_wavefront_fx_detect (snd_wavefront_t *dev)
139 /* This is a crude check, but its the best one I have for now.
140 Certainly on the Maui and the Tropez, wavefront_fx_idle() will
141 report "never idle", which suggests that this test should
145 if (inb (dev->fx_status) & 0x80) {
146 snd_printk ("Hmm, probably a Maui or Tropez.\n");
154 snd_wavefront_fx_open (struct snd_hwdep *hw, struct file *file)
157 if (!try_module_get(hw->card->module))
159 file->private_data = hw;
164 snd_wavefront_fx_release (struct snd_hwdep *hw, struct file *file)
167 module_put(hw->card->module);
172 snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file,
173 unsigned int cmd, unsigned long arg)
176 struct snd_card *card;
177 snd_wavefront_card_t *acard;
178 snd_wavefront_t *dev;
180 unsigned short *page_data = NULL;
184 snd_assert(sdev->card != NULL, return -ENODEV);
188 snd_assert(card->private_data != NULL, return -ENODEV);
190 acard = card->private_data;
191 dev = &acard->wavefront;
193 if (copy_from_user (&r, (void __user *)arg, sizeof (wavefront_fx_info)))
198 wavefront_fx_mute (dev, r.data[0]);
202 if (r.data[2] <= 0) {
203 snd_printk ("cannot write "
204 "<= 0 bytes to FX\n");
206 } else if (r.data[2] == 1) {
207 pd = (unsigned short *) &r.data[3];
209 if (r.data[2] > 256) {
210 snd_printk ("cannot write "
211 "> 512 bytes to FX\n");
214 page_data = kmalloc(r.data[2] * sizeof(short), GFP_KERNEL);
217 if (copy_from_user (page_data,
218 (unsigned char __user *) r.data[3],
219 r.data[2] * sizeof(short))) {
226 err = wavefront_fx_memset (dev,
227 r.data[0], /* page */
228 r.data[1], /* addr */
235 snd_printk ("FX: ioctl %d not yet supported\n",
242 /* YSS225 initialization.
244 This code was developed using DOSEMU. The Turtle Beach SETUPSND
245 utility was run with I/O tracing in DOSEMU enabled, and a reconstruction
246 of the port I/O done, using the Yamaha faxback document as a guide
247 to add more logic to the code. Its really pretty weird.
249 This is the approach of just dumping the whole I/O
250 sequence as a series of port/value pairs and a simple loop
255 snd_wavefront_fx_start (snd_wavefront_t *dev)
259 const struct firmware *firmware = NULL;
261 if (dev->fx_initialized)
264 #ifdef CONFIG_SND_WAVEFRONT_FIRMWARE_IN_KERNEL
265 firmware = &yss225_registers_firmware;
267 err = request_firmware(&firmware, "yamaha/yss225_registers.bin",
275 for (i = 0; i + 1 < firmware->size; i += 2) {
276 if (firmware->data[i] >= 8 && firmware->data[i] < 16) {
277 outb(firmware->data[i + 1],
278 dev->base + firmware->data[i]);
279 } else if (firmware->data[i] == WAIT_IDLE) {
280 if (!wavefront_fx_idle(dev)) {
285 snd_printk(KERN_ERR "invalid address"
286 " in register data\n");
292 dev->fx_initialized = 1;
296 #ifndef CONFIG_SND_WAVEFRONT_FIRMWARE_IN_KERNEL
297 release_firmware(firmware);
302 #ifndef CONFIG_SND_WAVEFRONT_FIRMWARE_IN_KERNEL
303 MODULE_FIRMWARE("yamaha/yss225_registers.bin");