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
20 #include <linux/init.h>
21 #include <linux/time.h>
22 #include <linux/wait.h>
23 #include <linux/slab.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
39 wavefront_fx_idle (snd_wavefront_t
*dev
)
43 unsigned int x
= 0x80;
45 for (i
= 0; i
< 1000; i
++) {
46 x
= inb (dev
->fx_status
);
47 if ((x
& 0x80) == 0) {
53 snd_printk ("FX device never idle.\n");
61 wavefront_fx_mute (snd_wavefront_t
*dev
, int onoff
)
64 if (!wavefront_fx_idle(dev
)) {
68 outb (onoff
? 0x02 : 0x00, dev
->fx_op
);
72 wavefront_fx_memset (snd_wavefront_t
*dev
,
78 if (page
< 0 || page
> 7) {
79 snd_printk ("FX memset: "
80 "page must be >= 0 and <= 7\n");
84 if (addr
< 0 || addr
> 0x7f) {
85 snd_printk ("FX memset: "
86 "addr must be >= 0 and <= 7f\n");
92 outb (FX_LSB_TRANSFER
, dev
->fx_lcr
);
93 outb (page
, dev
->fx_dsp_page
);
94 outb (addr
, dev
->fx_dsp_addr
);
95 outb ((data
[0] >> 8), dev
->fx_dsp_msb
);
96 outb ((data
[0] & 0xff), dev
->fx_dsp_lsb
);
98 snd_printk ("FX: addr %d:%x set to 0x%x\n",
104 outb (FX_AUTO_INCR
|FX_LSB_TRANSFER
, dev
->fx_lcr
);
105 outb (page
, dev
->fx_dsp_page
);
106 outb (addr
, dev
->fx_dsp_addr
);
108 for (i
= 0; i
< cnt
; i
++) {
109 outb ((data
[i
] >> 8), dev
->fx_dsp_msb
);
110 outb ((data
[i
] & 0xff), dev
->fx_dsp_lsb
);
111 if (!wavefront_fx_idle (dev
)) {
117 snd_printk ("FX memset "
118 "(0x%x, 0x%x, 0x%lx, %d) incomplete\n",
119 page
, addr
, (unsigned long) data
, cnt
);
128 snd_wavefront_fx_detect (snd_wavefront_t
*dev
)
131 /* This is a crude check, but its the best one I have for now.
132 Certainly on the Maui and the Tropez, wavefront_fx_idle() will
133 report "never idle", which suggests that this test should
137 if (inb (dev
->fx_status
) & 0x80) {
138 snd_printk ("Hmm, probably a Maui or Tropez.\n");
146 snd_wavefront_fx_open (struct snd_hwdep
*hw
, struct file
*file
)
149 if (!try_module_get(hw
->card
->module
))
151 file
->private_data
= hw
;
156 snd_wavefront_fx_release (struct snd_hwdep
*hw
, struct file
*file
)
159 module_put(hw
->card
->module
);
164 snd_wavefront_fx_ioctl (struct snd_hwdep
*sdev
, struct file
*file
,
165 unsigned int cmd
, unsigned long arg
)
168 struct snd_card
*card
;
169 snd_wavefront_card_t
*acard
;
170 snd_wavefront_t
*dev
;
172 unsigned short *page_data
= NULL
;
177 if (snd_BUG_ON(!card
))
179 if (snd_BUG_ON(!card
->private_data
))
182 acard
= card
->private_data
;
183 dev
= &acard
->wavefront
;
185 if (copy_from_user (&r
, (void __user
*)arg
, sizeof (wavefront_fx_info
)))
190 wavefront_fx_mute (dev
, r
.data
[0]);
194 if (r
.data
[2] <= 0) {
195 snd_printk ("cannot write "
196 "<= 0 bytes to FX\n");
198 } else if (r
.data
[2] == 1) {
199 pd
= (unsigned short *) &r
.data
[3];
201 if (r
.data
[2] > 256) {
202 snd_printk ("cannot write "
203 "> 512 bytes to FX\n");
206 page_data
= memdup_user((unsigned char __user
*)
208 r
.data
[2] * sizeof(short));
209 if (IS_ERR(page_data
))
210 return PTR_ERR(page_data
);
214 err
= wavefront_fx_memset (dev
,
215 r
.data
[0], /* page */
216 r
.data
[1], /* addr */
223 snd_printk ("FX: ioctl %d not yet supported\n",
230 /* YSS225 initialization.
232 This code was developed using DOSEMU. The Turtle Beach SETUPSND
233 utility was run with I/O tracing in DOSEMU enabled, and a reconstruction
234 of the port I/O done, using the Yamaha faxback document as a guide
235 to add more logic to the code. Its really pretty weird.
237 This is the approach of just dumping the whole I/O
238 sequence as a series of port/value pairs and a simple loop
243 snd_wavefront_fx_start (snd_wavefront_t
*dev
)
247 const struct firmware
*firmware
= NULL
;
249 if (dev
->fx_initialized
)
252 err
= request_firmware(&firmware
, "yamaha/yss225_registers.bin",
259 for (i
= 0; i
+ 1 < firmware
->size
; i
+= 2) {
260 if (firmware
->data
[i
] >= 8 && firmware
->data
[i
] < 16) {
261 outb(firmware
->data
[i
+ 1],
262 dev
->base
+ firmware
->data
[i
]);
263 } else if (firmware
->data
[i
] == WAIT_IDLE
) {
264 if (!wavefront_fx_idle(dev
)) {
269 snd_printk(KERN_ERR
"invalid address"
270 " in register data\n");
276 dev
->fx_initialized
= 1;
280 release_firmware(firmware
);
284 MODULE_FIRMWARE("yamaha/yss225_registers.bin");