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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 1998-2002 by Paul Davis <pbd@op.net> | |
3 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
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 | |
17 | */ | |
18 | ||
1da177e4 LT |
19 | #include <asm/io.h> |
20 | #include <linux/init.h> | |
21 | #include <linux/time.h> | |
22 | #include <linux/wait.h> | |
5a0e3ad6 | 23 | #include <linux/slab.h> |
226968c7 | 24 | #include <linux/firmware.h> |
1da177e4 LT |
25 | #include <sound/core.h> |
26 | #include <sound/snd_wavefront.h> | |
27 | #include <sound/initval.h> | |
28 | ||
29 | /* Control bits for the Load Control Register | |
30 | */ | |
31 | ||
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 */ | |
35 | ||
59540fe8 CL |
36 | #define WAIT_IDLE 0xff |
37 | ||
1da177e4 LT |
38 | static int |
39 | wavefront_fx_idle (snd_wavefront_t *dev) | |
40 | ||
41 | { | |
42 | int i; | |
43 | unsigned int x = 0x80; | |
44 | ||
45 | for (i = 0; i < 1000; i++) { | |
46 | x = inb (dev->fx_status); | |
47 | if ((x & 0x80) == 0) { | |
48 | break; | |
49 | } | |
50 | } | |
51 | ||
52 | if (x & 0x80) { | |
53 | snd_printk ("FX device never idle.\n"); | |
54 | return 0; | |
55 | } | |
56 | ||
57 | return (1); | |
58 | } | |
59 | ||
60 | static void | |
61 | wavefront_fx_mute (snd_wavefront_t *dev, int onoff) | |
62 | ||
63 | { | |
64 | if (!wavefront_fx_idle(dev)) { | |
65 | return; | |
66 | } | |
67 | ||
68 | outb (onoff ? 0x02 : 0x00, dev->fx_op); | |
69 | } | |
70 | ||
71 | static int | |
72 | wavefront_fx_memset (snd_wavefront_t *dev, | |
73 | int page, | |
74 | int addr, | |
75 | int cnt, | |
76 | unsigned short *data) | |
77 | { | |
78 | if (page < 0 || page > 7) { | |
79 | snd_printk ("FX memset: " | |
80 | "page must be >= 0 and <= 7\n"); | |
81 | return -(EINVAL); | |
82 | } | |
83 | ||
84 | if (addr < 0 || addr > 0x7f) { | |
85 | snd_printk ("FX memset: " | |
86 | "addr must be >= 0 and <= 7f\n"); | |
87 | return -(EINVAL); | |
88 | } | |
89 | ||
90 | if (cnt == 1) { | |
91 | ||
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); | |
97 | ||
98 | snd_printk ("FX: addr %d:%x set to 0x%x\n", | |
99 | page, addr, data[0]); | |
100 | ||
101 | } else { | |
102 | int i; | |
103 | ||
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); | |
107 | ||
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)) { | |
112 | break; | |
113 | } | |
114 | } | |
115 | ||
116 | if (i != cnt) { | |
117 | snd_printk ("FX memset " | |
118 | "(0x%x, 0x%x, 0x%lx, %d) incomplete\n", | |
119 | page, addr, (unsigned long) data, cnt); | |
120 | return -(EIO); | |
121 | } | |
122 | } | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | int | |
128 | snd_wavefront_fx_detect (snd_wavefront_t *dev) | |
129 | ||
130 | { | |
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 | |
134 | work OK. | |
135 | */ | |
136 | ||
137 | if (inb (dev->fx_status) & 0x80) { | |
138 | snd_printk ("Hmm, probably a Maui or Tropez.\n"); | |
139 | return -1; | |
140 | } | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
145 | int | |
542172f3 | 146 | snd_wavefront_fx_open (struct snd_hwdep *hw, struct file *file) |
1da177e4 LT |
147 | |
148 | { | |
149 | if (!try_module_get(hw->card->module)) | |
150 | return -EFAULT; | |
151 | file->private_data = hw; | |
152 | return 0; | |
153 | } | |
154 | ||
155 | int | |
542172f3 | 156 | snd_wavefront_fx_release (struct snd_hwdep *hw, struct file *file) |
1da177e4 LT |
157 | |
158 | { | |
159 | module_put(hw->card->module); | |
160 | return 0; | |
161 | } | |
162 | ||
163 | int | |
542172f3 | 164 | snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file, |
1da177e4 LT |
165 | unsigned int cmd, unsigned long arg) |
166 | ||
167 | { | |
542172f3 | 168 | struct snd_card *card; |
1da177e4 LT |
169 | snd_wavefront_card_t *acard; |
170 | snd_wavefront_t *dev; | |
171 | wavefront_fx_info r; | |
172 | unsigned short *page_data = NULL; | |
173 | unsigned short *pd; | |
174 | int err = 0; | |
175 | ||
1da177e4 | 176 | card = sdev->card; |
622207dc TI |
177 | if (snd_BUG_ON(!card)) |
178 | return -ENODEV; | |
179 | if (snd_BUG_ON(!card->private_data)) | |
180 | return -ENODEV; | |
1da177e4 LT |
181 | |
182 | acard = card->private_data; | |
183 | dev = &acard->wavefront; | |
184 | ||
185 | if (copy_from_user (&r, (void __user *)arg, sizeof (wavefront_fx_info))) | |
186 | return -EFAULT; | |
187 | ||
188 | switch (r.request) { | |
189 | case WFFX_MUTE: | |
190 | wavefront_fx_mute (dev, r.data[0]); | |
191 | return -EIO; | |
192 | ||
193 | case WFFX_MEMSET: | |
194 | if (r.data[2] <= 0) { | |
195 | snd_printk ("cannot write " | |
196 | "<= 0 bytes to FX\n"); | |
197 | return -EIO; | |
198 | } else if (r.data[2] == 1) { | |
199 | pd = (unsigned short *) &r.data[3]; | |
200 | } else { | |
201 | if (r.data[2] > 256) { | |
202 | snd_printk ("cannot write " | |
203 | "> 512 bytes to FX\n"); | |
204 | return -EIO; | |
205 | } | |
68425adc LZ |
206 | page_data = memdup_user((unsigned char __user *) |
207 | r.data[3], | |
208 | r.data[2] * sizeof(short)); | |
209 | if (IS_ERR(page_data)) | |
210 | return PTR_ERR(page_data); | |
1da177e4 LT |
211 | pd = page_data; |
212 | } | |
213 | ||
214 | err = wavefront_fx_memset (dev, | |
215 | r.data[0], /* page */ | |
216 | r.data[1], /* addr */ | |
217 | r.data[2], /* cnt */ | |
218 | pd); | |
219 | kfree(page_data); | |
220 | break; | |
221 | ||
222 | default: | |
223 | snd_printk ("FX: ioctl %d not yet supported\n", | |
224 | r.request); | |
225 | return -ENOTTY; | |
226 | } | |
227 | return err; | |
228 | } | |
229 | ||
230 | /* YSS225 initialization. | |
231 | ||
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. | |
236 | ||
59540fe8 | 237 | This is the approach of just dumping the whole I/O |
1da177e4 | 238 | sequence as a series of port/value pairs and a simple loop |
59540fe8 | 239 | that outputs it. |
1da177e4 LT |
240 | */ |
241 | ||
40e1a9c0 | 242 | int __devinit |
1da177e4 | 243 | snd_wavefront_fx_start (snd_wavefront_t *dev) |
1da177e4 | 244 | { |
59540fe8 | 245 | unsigned int i; |
226968c7 | 246 | int err; |
b7dd2b34 | 247 | const struct firmware *firmware = NULL; |
1da177e4 | 248 | |
59540fe8 CL |
249 | if (dev->fx_initialized) |
250 | return 0; | |
1da177e4 | 251 | |
226968c7 CL |
252 | err = request_firmware(&firmware, "yamaha/yss225_registers.bin", |
253 | dev->card->dev); | |
254 | if (err < 0) { | |
226968c7 CL |
255 | err = -1; |
256 | goto out; | |
226968c7 CL |
257 | } |
258 | ||
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)) { | |
265 | err = -1; | |
266 | goto out; | |
267 | } | |
59540fe8 CL |
268 | } else { |
269 | snd_printk(KERN_ERR "invalid address" | |
270 | " in register data\n"); | |
226968c7 CL |
271 | err = -1; |
272 | goto out; | |
1da177e4 | 273 | } |
1da177e4 LT |
274 | } |
275 | ||
59540fe8 | 276 | dev->fx_initialized = 1; |
226968c7 CL |
277 | err = 0; |
278 | ||
279 | out: | |
b7dd2b34 | 280 | release_firmware(firmware); |
226968c7 | 281 | return err; |
1da177e4 | 282 | } |
7e0af29d | 283 | |
7e0af29d | 284 | MODULE_FIRMWARE("yamaha/yss225_registers.bin"); |