2 * Zoran zr36057/zr36067 PCI controller driver, for the
3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
4 * Media Labs LML33/LML33R10.
6 * This part handles the procFS entries (/proc/ZORAN[%d])
8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
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>
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.
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.
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.
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>
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>
44 #include <linux/ctype.h>
47 #include "videocodec.h"
49 #include "zoran_procfs.h"
53 #define dprintk(num, format, args...) \
55 if (*zr_debug >= num) \
56 printk(format, ##args); \
60 struct procfs_params_zr36067 {
67 static const struct procfs_params_zr36067 zr67[] = {
68 {"HSPol", 0x000, 1, 30},
69 {"HStart", 0x000, 0x3ff, 10},
70 {"HEnd", 0x000, 0x3ff, 0},
72 {"VSPol", 0x004, 1, 30},
73 {"VStart", 0x004, 0x3ff, 10},
74 {"VEnd", 0x004, 0x3ff, 0},
76 {"ExtFl", 0x008, 1, 26},
77 {"TopField", 0x008, 1, 25},
78 {"VCLKPol", 0x008, 1, 24},
79 {"DupFld", 0x008, 1, 20},
80 {"LittleEndian", 0x008, 1, 0},
82 {"HsyncStart", 0x10c, 0xffff, 16},
83 {"LineTot", 0x10c, 0xffff, 0},
85 {"NAX", 0x110, 0xffff, 16},
86 {"PAX", 0x110, 0xffff, 0},
88 {"NAY", 0x114, 0xffff, 16},
89 {"PAY", 0x114, 0xffff, 0},
105 setparam (struct zoran *zr,
109 int i = 0, reg0, reg, val;
111 while (zr67[i].name != NULL) {
112 if (!strncmp(name, zr67[i].name, strlen(zr67[i].name))) {
113 reg = reg0 = btread(zr67[i].reg);
114 reg &= ~(zr67[i].mask << zr67[i].bit);
115 if (!isdigit(sval[0]))
117 val = simple_strtoul(sval, NULL, 0);
118 if ((val & ~zr67[i].mask))
120 reg |= (val & zr67[i].mask) << zr67[i].bit;
123 "%s: setparam: setting ZR36067 register 0x%03x: 0x%08x=>0x%08x %s=%d\n",
124 ZR_DEVNAME(zr), zr67[i].reg, reg0, reg,
126 btwrite(reg, zr67[i].reg);
134 print_procfs (struct procfs_io *io,
141 if (io->buffer >= io->end) {
145 if (io->count > io->count_current++)
148 i = vsprintf(io->buffer, fmt, args);
155 zoran_procfs_output (struct procfs_io *io,
160 zr = (struct zoran *) data;
162 print_procfs(io, "ZR36067 registers:");
163 for (i = 0; i < 0x130; i += 4) {
165 print_procfs(io, "\n%03X", i);
167 print_procfs(io, " %08X ", btread(i));
169 print_procfs(io, "\n");
173 zoran_read_proc (char *buffer,
184 io.end = buffer + size - 128; // Just to make it a little bit safer
186 io.count_current = 0;
188 zoran_procfs_output(&io, data);
189 *start = (char *) (io.count_current - io.count);
190 nbytes = (int) (io.buffer - buffer);
198 zoran_write_proc (struct file *file,
204 char *line, *ldelim, *varname, *svar, *tdelim;
207 if (count > 32768) /* Stupidity filter */
210 zr = (struct zoran *) data;
212 string = sp = vmalloc(count + 1);
216 "%s: write_proc: can not allocate memory\n",
220 if (copy_from_user(string, buffer, count)) {
225 dprintk(4, KERN_INFO "%s: write_proc: name=%s count=%lu data=%x\n",
226 ZR_DEVNAME(zr), file->f_dentry->d_name.name, count, (int) data);
229 line = strpbrk(sp, ldelim);
232 svar = strpbrk(sp, tdelim);
237 setparam(zr, varname, svar);
240 line = strpbrk(sp, ldelim);
249 zoran_proc_init (struct zoran *zr)
251 #ifdef CONFIG_PROC_FS
254 snprintf(name, 7, "zoran%d", zr->id);
255 if ((zr->zoran_proc = create_proc_entry(name, 0, 0))) {
256 zr->zoran_proc->read_proc = zoran_read_proc;
257 zr->zoran_proc->write_proc = zoran_write_proc;
258 zr->zoran_proc->data = zr;
259 zr->zoran_proc->owner = THIS_MODULE;
262 "%s: procfs entry /proc/%s allocated. data=%p\n",
263 ZR_DEVNAME(zr), name, zr->zoran_proc->data);
265 dprintk(1, KERN_ERR "%s: Unable to initialise /proc/%s\n",
266 ZR_DEVNAME(zr), name);
274 zoran_proc_cleanup (struct zoran *zr)
276 #ifdef CONFIG_PROC_FS
279 snprintf(name, 7, "zoran%d", zr->id);
280 if (zr->zoran_proc) {
281 remove_proc_entry(name, 0);
283 zr->zoran_proc = NULL;