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path: root/drivers/media/video/zoran/zoran_procfs.c
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Diffstat (limited to 'drivers/media/video/zoran/zoran_procfs.c')
-rw-r--r--drivers/media/video/zoran/zoran_procfs.c225
1 files changed, 225 insertions, 0 deletions
diff --git a/drivers/media/video/zoran/zoran_procfs.c b/drivers/media/video/zoran/zoran_procfs.c
new file mode 100644
index 000000000000..870bc5a70e3f
--- /dev/null
+++ b/drivers/media/video/zoran/zoran_procfs.c
@@ -0,0 +1,225 @@
+/*
+ * 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 <mirsev@cicese.mx>
+ *
+ * Currently maintained by:
+ * Ronald Bultje <rbultje@ronald.bitfreak.net>
+ * Laurent Pinchart <laurent.pinchart@skynet.be>
+ * Mailinglist <mjpeg-users@lists.sf.net>
+ *
+ * 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 <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+
+#include <linux/proc_fs.h>
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/videodev.h>
+#include <linux/spinlock.h>
+#include <linux/sem.h>
+#include <linux/seq_file.h>
+
+#include <linux/ctype.h>
+#include <linux/poll.h>
+#include <asm/io.h>
+
+#include "videocodec.h"
+#include "zoran.h"
+#include "zoran_procfs.h"
+#include "zoran_card.h"
+
+#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},
+};
+
+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 zoran_show(struct seq_file *p, void *v)
+{
+ struct zoran *zr = p->private;
+ int i;
+
+ seq_printf(p, "ZR36067 registers:\n");
+ for (i = 0; i < 0x130; i += 16)
+ seq_printf(p, "%03X %08X %08X %08X %08X \n", i,
+ btread(i), btread(i+4), btread(i+8), btread(i+12));
+ return 0;
+}
+
+static int zoran_open(struct inode *inode, struct file *file)
+{
+ struct zoran *data = PDE(inode)->data;
+ return single_open(file, zoran_show, data);
+}
+
+static ssize_t zoran_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct zoran *zr = PDE(file->f_path.dentry->d_inode)->data;
+ char *string, *sp;
+ char *line, *ldelim, *varname, *svar, *tdelim;
+
+ if (count > 32768) /* Stupidity filter */
+ return -EINVAL;
+
+ 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=%zu zr=%p\n",
+ ZR_DEVNAME(zr), file->f_path.dentry->d_name.name, count, zr);
+ 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;
+}
+
+static const struct file_operations zoran_operations = {
+ .owner = THIS_MODULE,
+ .open = zoran_open,
+ .read = seq_read,
+ .write = zoran_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif
+
+int
+zoran_proc_init (struct zoran *zr)
+{
+#ifdef CONFIG_PROC_FS
+ char name[8];
+
+ snprintf(name, 7, "zoran%d", zr->id);
+ zr->zoran_proc = proc_create_data(name, 0, NULL, &zoran_operations, zr);
+ if (zr->zoran_proc != NULL) {
+ 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, NULL);
+ zr->zoran_proc = NULL;
+#endif
+}