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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * Copyright (c) 1998-2002 by Paul Davis <pbd@op.net> | |
1da177e4 LT |
4 | */ |
5 | ||
6cbbfe1c | 6 | #include <linux/io.h> |
1da177e4 LT |
7 | #include <linux/init.h> |
8 | #include <linux/time.h> | |
9 | #include <linux/wait.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
da155d5b | 11 | #include <linux/module.h> |
226968c7 | 12 | #include <linux/firmware.h> |
1da177e4 LT |
13 | #include <sound/core.h> |
14 | #include <sound/snd_wavefront.h> | |
15 | #include <sound/initval.h> | |
16 | ||
17 | /* Control bits for the Load Control Register | |
18 | */ | |
19 | ||
20 | #define FX_LSB_TRANSFER 0x01 /* transfer after DSP LSB byte written */ | |
21 | #define FX_MSB_TRANSFER 0x02 /* transfer after DSP MSB byte written */ | |
22 | #define FX_AUTO_INCR 0x04 /* auto-increment DSP address after transfer */ | |
23 | ||
59540fe8 CL |
24 | #define WAIT_IDLE 0xff |
25 | ||
1da177e4 LT |
26 | static int |
27 | wavefront_fx_idle (snd_wavefront_t *dev) | |
28 | ||
29 | { | |
30 | int i; | |
31 | unsigned int x = 0x80; | |
32 | ||
33 | for (i = 0; i < 1000; i++) { | |
34 | x = inb (dev->fx_status); | |
35 | if ((x & 0x80) == 0) { | |
36 | break; | |
37 | } | |
38 | } | |
39 | ||
40 | if (x & 0x80) { | |
41 | snd_printk ("FX device never idle.\n"); | |
42 | return 0; | |
43 | } | |
44 | ||
45 | return (1); | |
46 | } | |
47 | ||
48 | static void | |
49 | wavefront_fx_mute (snd_wavefront_t *dev, int onoff) | |
50 | ||
51 | { | |
52 | if (!wavefront_fx_idle(dev)) { | |
53 | return; | |
54 | } | |
55 | ||
56 | outb (onoff ? 0x02 : 0x00, dev->fx_op); | |
57 | } | |
58 | ||
59 | static int | |
60 | wavefront_fx_memset (snd_wavefront_t *dev, | |
61 | int page, | |
62 | int addr, | |
63 | int cnt, | |
64 | unsigned short *data) | |
65 | { | |
66 | if (page < 0 || page > 7) { | |
67 | snd_printk ("FX memset: " | |
68 | "page must be >= 0 and <= 7\n"); | |
9a303dc7 | 69 | return -EINVAL; |
1da177e4 LT |
70 | } |
71 | ||
72 | if (addr < 0 || addr > 0x7f) { | |
73 | snd_printk ("FX memset: " | |
74 | "addr must be >= 0 and <= 7f\n"); | |
9a303dc7 | 75 | return -EINVAL; |
1da177e4 LT |
76 | } |
77 | ||
78 | if (cnt == 1) { | |
79 | ||
80 | outb (FX_LSB_TRANSFER, dev->fx_lcr); | |
81 | outb (page, dev->fx_dsp_page); | |
82 | outb (addr, dev->fx_dsp_addr); | |
83 | outb ((data[0] >> 8), dev->fx_dsp_msb); | |
84 | outb ((data[0] & 0xff), dev->fx_dsp_lsb); | |
85 | ||
86 | snd_printk ("FX: addr %d:%x set to 0x%x\n", | |
87 | page, addr, data[0]); | |
88 | ||
89 | } else { | |
90 | int i; | |
91 | ||
92 | outb (FX_AUTO_INCR|FX_LSB_TRANSFER, dev->fx_lcr); | |
93 | outb (page, dev->fx_dsp_page); | |
94 | outb (addr, dev->fx_dsp_addr); | |
95 | ||
96 | for (i = 0; i < cnt; i++) { | |
97 | outb ((data[i] >> 8), dev->fx_dsp_msb); | |
98 | outb ((data[i] & 0xff), dev->fx_dsp_lsb); | |
99 | if (!wavefront_fx_idle (dev)) { | |
100 | break; | |
101 | } | |
102 | } | |
103 | ||
104 | if (i != cnt) { | |
105 | snd_printk ("FX memset " | |
106 | "(0x%x, 0x%x, 0x%lx, %d) incomplete\n", | |
107 | page, addr, (unsigned long) data, cnt); | |
9a303dc7 | 108 | return -EIO; |
1da177e4 LT |
109 | } |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
115 | int | |
116 | snd_wavefront_fx_detect (snd_wavefront_t *dev) | |
117 | ||
118 | { | |
119 | /* This is a crude check, but its the best one I have for now. | |
120 | Certainly on the Maui and the Tropez, wavefront_fx_idle() will | |
121 | report "never idle", which suggests that this test should | |
122 | work OK. | |
123 | */ | |
124 | ||
125 | if (inb (dev->fx_status) & 0x80) { | |
126 | snd_printk ("Hmm, probably a Maui or Tropez.\n"); | |
127 | return -1; | |
128 | } | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
133 | int | |
542172f3 | 134 | snd_wavefront_fx_open (struct snd_hwdep *hw, struct file *file) |
1da177e4 LT |
135 | |
136 | { | |
137 | if (!try_module_get(hw->card->module)) | |
138 | return -EFAULT; | |
139 | file->private_data = hw; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | int | |
542172f3 | 144 | snd_wavefront_fx_release (struct snd_hwdep *hw, struct file *file) |
1da177e4 LT |
145 | |
146 | { | |
147 | module_put(hw->card->module); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | int | |
542172f3 | 152 | snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file, |
1da177e4 LT |
153 | unsigned int cmd, unsigned long arg) |
154 | ||
155 | { | |
542172f3 | 156 | struct snd_card *card; |
1da177e4 LT |
157 | snd_wavefront_card_t *acard; |
158 | snd_wavefront_t *dev; | |
159 | wavefront_fx_info r; | |
160 | unsigned short *page_data = NULL; | |
161 | unsigned short *pd; | |
162 | int err = 0; | |
163 | ||
1da177e4 | 164 | card = sdev->card; |
622207dc TI |
165 | if (snd_BUG_ON(!card)) |
166 | return -ENODEV; | |
167 | if (snd_BUG_ON(!card->private_data)) | |
168 | return -ENODEV; | |
1da177e4 LT |
169 | |
170 | acard = card->private_data; | |
171 | dev = &acard->wavefront; | |
172 | ||
173 | if (copy_from_user (&r, (void __user *)arg, sizeof (wavefront_fx_info))) | |
174 | return -EFAULT; | |
175 | ||
176 | switch (r.request) { | |
177 | case WFFX_MUTE: | |
178 | wavefront_fx_mute (dev, r.data[0]); | |
179 | return -EIO; | |
180 | ||
181 | case WFFX_MEMSET: | |
182 | if (r.data[2] <= 0) { | |
183 | snd_printk ("cannot write " | |
184 | "<= 0 bytes to FX\n"); | |
185 | return -EIO; | |
186 | } else if (r.data[2] == 1) { | |
187 | pd = (unsigned short *) &r.data[3]; | |
188 | } else { | |
189 | if (r.data[2] > 256) { | |
190 | snd_printk ("cannot write " | |
191 | "> 512 bytes to FX\n"); | |
192 | return -EIO; | |
193 | } | |
68425adc LZ |
194 | page_data = memdup_user((unsigned char __user *) |
195 | r.data[3], | |
196 | r.data[2] * sizeof(short)); | |
197 | if (IS_ERR(page_data)) | |
198 | return PTR_ERR(page_data); | |
1da177e4 LT |
199 | pd = page_data; |
200 | } | |
201 | ||
202 | err = wavefront_fx_memset (dev, | |
203 | r.data[0], /* page */ | |
204 | r.data[1], /* addr */ | |
205 | r.data[2], /* cnt */ | |
206 | pd); | |
207 | kfree(page_data); | |
208 | break; | |
209 | ||
210 | default: | |
211 | snd_printk ("FX: ioctl %d not yet supported\n", | |
212 | r.request); | |
213 | return -ENOTTY; | |
214 | } | |
215 | return err; | |
216 | } | |
217 | ||
218 | /* YSS225 initialization. | |
219 | ||
220 | This code was developed using DOSEMU. The Turtle Beach SETUPSND | |
221 | utility was run with I/O tracing in DOSEMU enabled, and a reconstruction | |
222 | of the port I/O done, using the Yamaha faxback document as a guide | |
223 | to add more logic to the code. Its really pretty weird. | |
224 | ||
59540fe8 | 225 | This is the approach of just dumping the whole I/O |
1da177e4 | 226 | sequence as a series of port/value pairs and a simple loop |
59540fe8 | 227 | that outputs it. |
1da177e4 LT |
228 | */ |
229 | ||
1bff292e | 230 | int |
1da177e4 | 231 | snd_wavefront_fx_start (snd_wavefront_t *dev) |
1da177e4 | 232 | { |
59540fe8 | 233 | unsigned int i; |
226968c7 | 234 | int err; |
b7dd2b34 | 235 | const struct firmware *firmware = NULL; |
1da177e4 | 236 | |
59540fe8 CL |
237 | if (dev->fx_initialized) |
238 | return 0; | |
1da177e4 | 239 | |
226968c7 CL |
240 | err = request_firmware(&firmware, "yamaha/yss225_registers.bin", |
241 | dev->card->dev); | |
242 | if (err < 0) { | |
226968c7 CL |
243 | err = -1; |
244 | goto out; | |
226968c7 CL |
245 | } |
246 | ||
247 | for (i = 0; i + 1 < firmware->size; i += 2) { | |
248 | if (firmware->data[i] >= 8 && firmware->data[i] < 16) { | |
249 | outb(firmware->data[i + 1], | |
250 | dev->base + firmware->data[i]); | |
251 | } else if (firmware->data[i] == WAIT_IDLE) { | |
252 | if (!wavefront_fx_idle(dev)) { | |
253 | err = -1; | |
254 | goto out; | |
255 | } | |
59540fe8 CL |
256 | } else { |
257 | snd_printk(KERN_ERR "invalid address" | |
258 | " in register data\n"); | |
226968c7 CL |
259 | err = -1; |
260 | goto out; | |
1da177e4 | 261 | } |
1da177e4 LT |
262 | } |
263 | ||
59540fe8 | 264 | dev->fx_initialized = 1; |
226968c7 CL |
265 | err = 0; |
266 | ||
267 | out: | |
b7dd2b34 | 268 | release_firmware(firmware); |
226968c7 | 269 | return err; |
1da177e4 | 270 | } |
7e0af29d | 271 | |
7e0af29d | 272 | MODULE_FIRMWARE("yamaha/yss225_registers.bin"); |