/* * Zoran zr36057/zr36067 PCI controller driver, for the * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux * Media Labs LML33/LML33R10. * * This part handles the procFS entries (/proc/ZORAN[%d]) * * Copyright (C) 2000 Serguei Miridonov * * Currently maintained by: * Ronald Bultje * Laurent Pinchart * Mailinglist * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "videocodec.h" #include "zoran.h" #include "zoran_procfs.h" extern int *zr_debug; #define dprintk(num, format, args...) \ do { \ if (*zr_debug >= num) \ printk(format, ##args); \ } while (0) #ifdef CONFIG_PROC_FS struct procfs_params_zr36067 { char *name; short reg; u32 mask; short bit; }; static const struct procfs_params_zr36067 zr67[] = { {"HSPol", 0x000, 1, 30}, {"HStart", 0x000, 0x3ff, 10}, {"HEnd", 0x000, 0x3ff, 0}, {"VSPol", 0x004, 1, 30}, {"VStart", 0x004, 0x3ff, 10}, {"VEnd", 0x004, 0x3ff, 0}, {"ExtFl", 0x008, 1, 26}, {"TopField", 0x008, 1, 25}, {"VCLKPol", 0x008, 1, 24}, {"DupFld", 0x008, 1, 20}, {"LittleEndian", 0x008, 1, 0}, {"HsyncStart", 0x10c, 0xffff, 16}, {"LineTot", 0x10c, 0xffff, 0}, {"NAX", 0x110, 0xffff, 16}, {"PAX", 0x110, 0xffff, 0}, {"NAY", 0x114, 0xffff, 16}, {"PAY", 0x114, 0xffff, 0}, /* {"",,,}, */ {NULL, 0, 0, 0}, }; struct procfs_io { char *buffer; char *end; int neof; int count; int count_current; }; static void setparam (struct zoran *zr, char *name, char *sval) { int i = 0, reg0, reg, val; while (zr67[i].name != NULL) { if (!strncmp(name, zr67[i].name, strlen(zr67[i].name))) { reg = reg0 = btread(zr67[i].reg); reg &= ~(zr67[i].mask << zr67[i].bit); if (!isdigit(sval[0])) break; val = simple_strtoul(sval, NULL, 0); if ((val & ~zr67[i].mask)) break; reg |= (val & zr67[i].mask) << zr67[i].bit; dprintk(4, KERN_INFO "%s: setparam: setting ZR36067 register 0x%03x: 0x%08x=>0x%08x %s=%d\n", ZR_DEVNAME(zr), zr67[i].reg, reg0, reg, zr67[i].name, val); btwrite(reg, zr67[i].reg); break; } i++; } } static int print_procfs (struct procfs_io *io, const char *fmt, ...) { va_list args; int i; if (io->buffer >= io->end) { io->neof++; return 0; } if (io->count > io->count_current++) return 0; va_start(args, fmt); i = vsprintf(io->buffer, fmt, args); io->buffer += i; va_end(args); return i; } static void zoran_procfs_output (struct procfs_io *io, void *data) { int i; struct zoran *zr; zr = (struct zoran *) data; print_procfs(io, "ZR36067 registers:"); for (i = 0; i < 0x130; i += 4) { if (!(i % 16)) { print_procfs(io, "\n%03X", i); }; print_procfs(io, " %08X ", btread(i)); }; print_procfs(io, "\n"); } static int zoran_read_proc (char *buffer, char **start, off_t offset, int size, int *eof, void *data) { struct procfs_io io; int nbytes; io.buffer = buffer; io.end = buffer + size - 128; // Just to make it a little bit safer io.count = offset; io.count_current = 0; io.neof = 0; zoran_procfs_output(&io, data); *start = (char *) (io.count_current - io.count); nbytes = (int) (io.buffer - buffer); *eof = !io.neof; return nbytes; return 0; } static int zoran_write_proc (struct file *file, const char *buffer, unsigned long count, void *data) { char *string, *sp; char *line, *ldelim, *varname, *svar, *tdelim; struct zoran *zr; if (count > 32768) /* Stupidity filter */ return -EINVAL; zr = (struct zoran *) data; string = sp = vmalloc(count + 1); if (!string) { dprintk(1, KERN_ERR "%s: write_proc: can not allocate memory\n", ZR_DEVNAME(zr)); return -ENOMEM; } if (copy_from_user(string, buffer, count)) { vfree (string); return -EFAULT; } string[count] = 0; dprintk(4, KERN_INFO "%s: write_proc: name=%s count=%lu data=%x\n", ZR_DEVNAME(zr), file->f_dentry->d_name.name, count, (int) data); ldelim = " \t\n"; tdelim = "="; line = strpbrk(sp, ldelim); while (line) { *line = 0; svar = strpbrk(sp, tdelim); if (svar) { *svar = 0; varname = sp; svar++; setparam(zr, varname, svar); } sp = line + 1; line = strpbrk(sp, ldelim); } vfree(string); return count; } #endif int zoran_proc_init (struct zoran *zr) { #ifdef CONFIG_PROC_FS char name[8]; snprintf(name, 7, "zoran%d", zr->id); if ((zr->zoran_proc = create_proc_entry(name, 0, 0))) { zr->zoran_proc->read_proc = zoran_read_proc; zr->zoran_proc->write_proc = zoran_write_proc; zr->zoran_proc->data = zr; zr->zoran_proc->owner = THIS_MODULE; dprintk(2, KERN_INFO "%s: procfs entry /proc/%s allocated. data=%p\n", ZR_DEVNAME(zr), name, zr->zoran_proc->data); } else { dprintk(1, KERN_ERR "%s: Unable to initialise /proc/%s\n", ZR_DEVNAME(zr), name); return 1; } #endif return 0; } void zoran_proc_cleanup (struct zoran *zr) { #ifdef CONFIG_PROC_FS char name[8]; snprintf(name, 7, "zoran%d", zr->id); if (zr->zoran_proc) { remove_proc_entry(name, 0); } zr->zoran_proc = NULL; #endif }