Linux-2.6.12-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!

1 files changed, 213 insertions, 0 deletions

diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c
new file mode 100644
index 0000000..6080017
--- /dev/null
+++ b/drivers/media/video/cx88/cx88-i2c.c
@@ -0,0 +1,213 @@
+/*
+    $Id: cx88-i2c.c,v 1.20 2005/02/15 15:59:35 kraxel Exp $
+
+    cx88-i2c.c  --  all the i2c code is here
+
+    Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
+                           & Marcus Metzler (mocm@thp.uni-koeln.de)
+    (c) 2002 Yurij Sysoev <yurij@naturesoft.net>
+    (c) 1999-2003 Gerd Knorr <kraxel@bytesex.org>
+
+    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/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#include "cx88.h"
+
+static unsigned int i2c_debug = 0;
+module_param(i2c_debug, int, 0644);
+MODULE_PARM_DESC(i2c_debug,"enable debug messages [i2c]");
+
+static unsigned int i2c_scan = 0;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time");
+
+#define dprintk(level,fmt, arg...)	if (i2c_debug >= level) \
+	printk(KERN_DEBUG "%s: " fmt, core->name , ## arg)
+
+/* ----------------------------------------------------------------------- */
+
+void cx8800_bit_setscl(void *data, int state)
+{
+	struct cx88_core *core = data;
+
+	if (state)
+		core->i2c_state |= 0x02;
+	else
+		core->i2c_state &= ~0x02;
+	cx_write(MO_I2C, core->i2c_state);
+	cx_read(MO_I2C);
+}
+
+void cx8800_bit_setsda(void *data, int state)
+{
+	struct cx88_core *core = data;
+
+	if (state)
+		core->i2c_state |= 0x01;
+	else
+		core->i2c_state &= ~0x01;
+	cx_write(MO_I2C, core->i2c_state);
+	cx_read(MO_I2C);
+}
+
+static int cx8800_bit_getscl(void *data)
+{
+	struct cx88_core *core = data;
+	u32 state;
+
+	state = cx_read(MO_I2C);
+	return state & 0x02 ? 1 : 0;
+}
+
+static int cx8800_bit_getsda(void *data)
+{
+	struct cx88_core *core = data;
+	u32 state;
+
+	state = cx_read(MO_I2C);
+	return state & 0x01;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int attach_inform(struct i2c_client *client)
+{
+	struct cx88_core *core = i2c_get_adapdata(client->adapter);
+
+	dprintk(1, "i2c attach [addr=0x%x,client=%s]\n",
+		client->addr, i2c_clientname(client));
+	if (!client->driver->command)
+		return 0;
+
+	if (core->tuner_type != UNSET)
+		client->driver->command(client, TUNER_SET_TYPE, &core->tuner_type);
+	if (core->tda9887_conf)
+		client->driver->command(client, TDA9887_SET_CONFIG, &core->tda9887_conf);
+	return 0;
+}
+
+static int detach_inform(struct i2c_client *client)
+{
+	struct cx88_core *core = i2c_get_adapdata(client->adapter);
+
+	dprintk(1, "i2c detach [client=%s]\n", i2c_clientname(client));
+	return 0;
+}
+
+void cx88_call_i2c_clients(struct cx88_core *core, unsigned int cmd, void *arg)
+{
+	if (0 != core->i2c_rc)
+		return;
+	i2c_clients_command(&core->i2c_adap, cmd, arg);
+}
+
+static struct i2c_algo_bit_data cx8800_i2c_algo_template = {
+	.setsda  = cx8800_bit_setsda,
+	.setscl  = cx8800_bit_setscl,
+	.getsda  = cx8800_bit_getsda,
+	.getscl  = cx8800_bit_getscl,
+	.udelay  = 16,
+	.mdelay  = 10,
+	.timeout = 200,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_adapter cx8800_i2c_adap_template = {
+	I2C_DEVNAME("cx2388x"),
+	.owner             = THIS_MODULE,
+	.id                = I2C_HW_B_CX2388x,
+	.client_register   = attach_inform,
+	.client_unregister = detach_inform,
+};
+
+static struct i2c_client cx8800_i2c_client_template = {
+        I2C_DEVNAME("cx88xx internal"),
+};
+
+static char *i2c_devs[128] = {
+	[ 0x86 >> 1 ] = "tda9887/cx22702",
+	[ 0xa0 >> 1 ] = "eeprom",
+	[ 0xc0 >> 1 ] = "tuner (analog)",
+	[ 0xc2 >> 1 ] = "tuner (analog/dvb)",
+};
+
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+	unsigned char buf;
+	int i,rc;
+
+	for (i = 0; i < 128; i++) {
+		c->addr = i;
+		rc = i2c_master_recv(c,&buf,0);
+		if (rc < 0)
+			continue;
+		printk("%s: i2c scan: found device @ 0x%x  [%s]\n",
+		       name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
+	}
+}
+
+/* init + register i2c algo-bit adapter */
+int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci)
+{
+	memcpy(&core->i2c_adap, &cx8800_i2c_adap_template,
+	       sizeof(core->i2c_adap));
+	memcpy(&core->i2c_algo, &cx8800_i2c_algo_template,
+	       sizeof(core->i2c_algo));
+	memcpy(&core->i2c_client, &cx8800_i2c_client_template,
+	       sizeof(core->i2c_client));
+
+	if (core->tuner_type != TUNER_ABSENT)
+		core->i2c_adap.class |= I2C_CLASS_TV_ANALOG;
+	if (cx88_boards[core->board].dvb)
+		core->i2c_adap.class |= I2C_CLASS_TV_DIGITAL;
+
+	core->i2c_adap.dev.parent = &pci->dev;
+	strlcpy(core->i2c_adap.name,core->name,sizeof(core->i2c_adap.name));
+        core->i2c_algo.data = core;
+        i2c_set_adapdata(&core->i2c_adap,core);
+        core->i2c_adap.algo_data = &core->i2c_algo;
+        core->i2c_client.adapter = &core->i2c_adap;
+
+	cx8800_bit_setscl(core,1);
+	cx8800_bit_setsda(core,1);
+
+	core->i2c_rc = i2c_bit_add_bus(&core->i2c_adap);
+	if (0 == core->i2c_rc) {
+		dprintk(1, "i2c register ok\n");
+		if (i2c_scan)
+			do_i2c_scan(core->name,&core->i2c_client);
+	} else
+		printk("%s: i2c register FAILED\n", core->name);
+	return core->i2c_rc;
+}
+
+/* ----------------------------------------------------------------------- */
+
+EXPORT_SYMBOL(cx88_call_i2c_clients);
+EXPORT_SYMBOL(cx88_i2c_init);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */