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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/zoran_procfs.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/media/video/zoran_procfs.c')
-rw-r--r--drivers/media/video/zoran_procfs.c233
1 files changed, 233 insertions, 0 deletions
diff --git a/drivers/media/video/zoran_procfs.c b/drivers/media/video/zoran_procfs.c
new file mode 100644
index 000000000000..f0d9b13c3c6c
--- /dev/null
+++ b/drivers/media/video/zoran_procfs.c
@@ -0,0 +1,233 @@
1/*
2 * Zoran zr36057/zr36067 PCI controller driver, for the
3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
4 * Media Labs LML33/LML33R10.
5 *
6 * This part handles the procFS entries (/proc/ZORAN[%d])
7 *
8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
9 *
10 * Currently maintained by:
11 * Ronald Bultje <rbultje@ronald.bitfreak.net>
12 * Laurent Pinchart <laurent.pinchart@skynet.be>
13 * Mailinglist <mjpeg-users@lists.sf.net>
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
29
30#include <linux/config.h>
31#include <linux/types.h>
32#include <linux/kernel.h>
33#include <linux/module.h>
34#include <linux/vmalloc.h>
35
36#include <linux/proc_fs.h>
37#include <linux/pci.h>
38#include <linux/i2c.h>
39#include <linux/i2c-algo-bit.h>
40#include <linux/videodev.h>
41#include <linux/spinlock.h>
42#include <linux/sem.h>
43#include <linux/seq_file.h>
44
45#include <linux/ctype.h>
46#include <asm/io.h>
47
48#include "videocodec.h"
49#include "zoran.h"
50#include "zoran_procfs.h"
51
52extern int *zr_debug;
53
54#define dprintk(num, format, args...) \
55 do { \
56 if (*zr_debug >= num) \
57 printk(format, ##args); \
58 } while (0)
59
60#ifdef CONFIG_PROC_FS
61struct procfs_params_zr36067 {
62 char *name;
63 short reg;
64 u32 mask;
65 short bit;
66};
67
68static const struct procfs_params_zr36067 zr67[] = {
69 {"HSPol", 0x000, 1, 30},
70 {"HStart", 0x000, 0x3ff, 10},
71 {"HEnd", 0x000, 0x3ff, 0},
72
73 {"VSPol", 0x004, 1, 30},
74 {"VStart", 0x004, 0x3ff, 10},
75 {"VEnd", 0x004, 0x3ff, 0},
76
77 {"ExtFl", 0x008, 1, 26},
78 {"TopField", 0x008, 1, 25},
79 {"VCLKPol", 0x008, 1, 24},
80 {"DupFld", 0x008, 1, 20},
81 {"LittleEndian", 0x008, 1, 0},
82
83 {"HsyncStart", 0x10c, 0xffff, 16},
84 {"LineTot", 0x10c, 0xffff, 0},
85
86 {"NAX", 0x110, 0xffff, 16},
87 {"PAX", 0x110, 0xffff, 0},
88
89 {"NAY", 0x114, 0xffff, 16},
90 {"PAY", 0x114, 0xffff, 0},
91
92 /* {"",,,}, */
93
94 {NULL, 0, 0, 0},
95};
96
97static void
98setparam (struct zoran *zr,
99 char *name,
100 char *sval)
101{
102 int i = 0, reg0, reg, val;
103
104 while (zr67[i].name != NULL) {
105 if (!strncmp(name, zr67[i].name, strlen(zr67[i].name))) {
106 reg = reg0 = btread(zr67[i].reg);
107 reg &= ~(zr67[i].mask << zr67[i].bit);
108 if (!isdigit(sval[0]))
109 break;
110 val = simple_strtoul(sval, NULL, 0);
111 if ((val & ~zr67[i].mask))
112 break;
113 reg |= (val & zr67[i].mask) << zr67[i].bit;
114 dprintk(4,
115 KERN_INFO
116 "%s: setparam: setting ZR36067 register 0x%03x: 0x%08x=>0x%08x %s=%d\n",
117 ZR_DEVNAME(zr), zr67[i].reg, reg0, reg,
118 zr67[i].name, val);
119 btwrite(reg, zr67[i].reg);
120 break;
121 }
122 i++;
123 }
124}
125
126static int zoran_show(struct seq_file *p, void *v)
127{
128 struct zoran *zr = p->private;
129 int i;
130
131 seq_printf(p, "ZR36067 registers:\n");
132 for (i = 0; i < 0x130; i += 16)
133 seq_printf(p, "%03X %08X %08X %08X %08X \n", i,
134 btread(i), btread(i+4), btread(i+8), btread(i+12));
135 return 0;
136}
137
138static int zoran_open(struct inode *inode, struct file *file)
139{
140 struct zoran *data = PDE(inode)->data;
141 return single_open(file, zoran_show, data);
142}
143
144static ssize_t zoran_write(struct file *file, const char __user *buffer,
145 size_t count, loff_t *ppos)
146{
147 struct zoran *zr = PDE(file->f_dentry->d_inode)->data;
148 char *string, *sp;
149 char *line, *ldelim, *varname, *svar, *tdelim;
150
151 if (count > 32768) /* Stupidity filter */
152 return -EINVAL;
153
154 string = sp = vmalloc(count + 1);
155 if (!string) {
156 dprintk(1,
157 KERN_ERR
158 "%s: write_proc: can not allocate memory\n",
159 ZR_DEVNAME(zr));
160 return -ENOMEM;
161 }
162 if (copy_from_user(string, buffer, count)) {
163 vfree (string);
164 return -EFAULT;
165 }
166 string[count] = 0;
167 dprintk(4, KERN_INFO "%s: write_proc: name=%s count=%zu zr=%p\n",
168 ZR_DEVNAME(zr), file->f_dentry->d_name.name, count, zr);
169 ldelim = " \t\n";
170 tdelim = "=";
171 line = strpbrk(sp, ldelim);
172 while (line) {
173 *line = 0;
174 svar = strpbrk(sp, tdelim);
175 if (svar) {
176 *svar = 0;
177 varname = sp;
178 svar++;
179 setparam(zr, varname, svar);
180 }
181 sp = line + 1;
182 line = strpbrk(sp, ldelim);
183 }
184 vfree(string);
185
186 return count;
187}
188
189static struct file_operations zoran_operations = {
190 .open = zoran_open,
191 .read = seq_read,
192 .write = zoran_write,
193 .llseek = seq_lseek,
194 .release = single_release,
195};
196#endif
197
198int
199zoran_proc_init (struct zoran *zr)
200{
201#ifdef CONFIG_PROC_FS
202 char name[8];
203
204 snprintf(name, 7, "zoran%d", zr->id);
205 if ((zr->zoran_proc = create_proc_entry(name, 0, NULL))) {
206 zr->zoran_proc->data = zr;
207 zr->zoran_proc->owner = THIS_MODULE;
208 zr->zoran_proc->proc_fops = &zoran_operations;
209 dprintk(2,
210 KERN_INFO
211 "%s: procfs entry /proc/%s allocated. data=%p\n",
212 ZR_DEVNAME(zr), name, zr->zoran_proc->data);
213 } else {
214 dprintk(1, KERN_ERR "%s: Unable to initialise /proc/%s\n",
215 ZR_DEVNAME(zr), name);
216 return 1;
217 }
218#endif
219 return 0;
220}
221
222void
223zoran_proc_cleanup (struct zoran *zr)
224{
225#ifdef CONFIG_PROC_FS
226 char name[8];
227
228 snprintf(name, 7, "zoran%d", zr->id);
229 if (zr->zoran_proc)
230 remove_proc_entry(name, NULL);
231 zr->zoran_proc = NULL;
232#endif
233}