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/types.h> 31#include <linux/kernel.h> 32#include <linux/module.h> 33#include <linux/vmalloc.h> 34 35#include <linux/proc_fs.h> 36#include <linux/pci.h> 37#include <linux/i2c.h> 38#include <linux/i2c-algo-bit.h> 39#include <linux/videodev.h> 40#include <linux/spinlock.h> 41#include <linux/sem.h> 42#include <linux/seq_file.h> 43 44#include <linux/ctype.h> 45#include <linux/poll.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_path.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_path.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 const 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} 234