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path: root/drivers/media/video/hdpvr/hdpvr-i2c.c
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Diffstat (limited to 'drivers/media/video/hdpvr/hdpvr-i2c.c')
-rw-r--r--drivers/media/video/hdpvr/hdpvr-i2c.c124
1 files changed, 84 insertions, 40 deletions
diff --git a/drivers/media/video/hdpvr/hdpvr-i2c.c b/drivers/media/video/hdpvr/hdpvr-i2c.c
index 409de11096d4..89b71faeaac2 100644
--- a/drivers/media/video/hdpvr/hdpvr-i2c.c
+++ b/drivers/media/video/hdpvr/hdpvr-i2c.c
@@ -4,12 +4,17 @@
*
* Copyright (C) 2008 Janne Grunau (j@jannau.net)
*
+ * IR device registration code is
+ * Copyright (C) 2010 Andy Walls <awalls@md.metrocast.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, version 2.
*
*/
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+
#include <linux/i2c.h>
#include <linux/slab.h>
@@ -22,59 +27,81 @@
#define REQTYPE_I2C_WRITE 0xb0
#define REQTYPE_I2C_WRITE_STATT 0xd0
-static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
- char *data, int len)
+#define Z8F0811_IR_TX_I2C_ADDR 0x70
+#define Z8F0811_IR_RX_I2C_ADDR 0x71
+
+
+static struct i2c_board_info hdpvr_i2c_board_info = {
+ I2C_BOARD_INFO("ir_tx_z8f0811_hdpvr", Z8F0811_IR_TX_I2C_ADDR),
+ I2C_BOARD_INFO("ir_rx_z8f0811_hdpvr", Z8F0811_IR_RX_I2C_ADDR),
+};
+
+int hdpvr_register_i2c_ir(struct hdpvr_device *dev)
+{
+ struct i2c_client *c;
+ struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
+
+ /* Our default information for ir-kbd-i2c.c to use */
+ init_data->ir_codes = RC_MAP_HAUPPAUGE_NEW;
+ init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
+ init_data->type = RC_TYPE_RC5;
+ init_data->name = "HD PVR";
+ hdpvr_i2c_board_info.platform_data = init_data;
+
+ c = i2c_new_device(&dev->i2c_adapter, &hdpvr_i2c_board_info);
+
+ return (c == NULL) ? -ENODEV : 0;
+}
+
+static int hdpvr_i2c_read(struct hdpvr_device *dev, int bus,
+ unsigned char addr, char *data, int len)
{
int ret;
- char *buf = kmalloc(len, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
+
+ if (len > sizeof(dev->i2c_buf))
+ return -EINVAL;
ret = usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
REQTYPE_I2C_READ, CTRL_READ_REQUEST,
- 0x100|addr, 0, buf, len, 1000);
+ (bus << 8) | addr, 0, &dev->i2c_buf, len, 1000);
if (ret == len) {
- memcpy(data, buf, len);
+ memcpy(data, &dev->i2c_buf, len);
ret = 0;
} else if (ret >= 0)
ret = -EIO;
- kfree(buf);
-
return ret;
}
-static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr,
- char *data, int len)
+static int hdpvr_i2c_write(struct hdpvr_device *dev, int bus,
+ unsigned char addr, char *data, int len)
{
int ret;
- char *buf = kmalloc(len, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- memcpy(buf, data, len);
+ if (len > sizeof(dev->i2c_buf))
+ return -EINVAL;
+
+ memcpy(&dev->i2c_buf, data, len);
ret = usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST,
- 0x100|addr, 0, buf, len, 1000);
+ (bus << 8) | addr, 0, &dev->i2c_buf, len, 1000);
if (ret < 0)
- goto error;
+ return ret;
ret = usb_control_msg(dev->udev,
usb_rcvctrlpipe(dev->udev, 0),
REQTYPE_I2C_WRITE_STATT, CTRL_READ_REQUEST,
- 0, 0, buf, 2, 1000);
+ 0, 0, &dev->i2c_buf, 2, 1000);
- if (ret == 2)
+ if ((ret == 2) && (dev->i2c_buf[1] == (len - 1)))
ret = 0;
else if (ret >= 0)
ret = -EIO;
-error:
- kfree(buf);
return ret;
}
@@ -93,10 +120,10 @@ static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs,
addr = msgs[i].addr << 1;
if (msgs[i].flags & I2C_M_RD)
- retval = hdpvr_i2c_read(dev, addr, msgs[i].buf,
+ retval = hdpvr_i2c_read(dev, 1, addr, msgs[i].buf,
msgs[i].len);
else
- retval = hdpvr_i2c_write(dev, addr, msgs[i].buf,
+ retval = hdpvr_i2c_write(dev, 1, addr, msgs[i].buf,
msgs[i].len);
}
@@ -115,30 +142,47 @@ static struct i2c_algorithm hdpvr_algo = {
.functionality = hdpvr_functionality,
};
+static struct i2c_adapter hdpvr_i2c_adapter_template = {
+ .name = "Hauppage HD PVR I2C",
+ .owner = THIS_MODULE,
+ .algo = &hdpvr_algo,
+};
+
+static int hdpvr_activate_ir(struct hdpvr_device *dev)
+{
+ char buffer[8];
+
+ mutex_lock(&dev->i2c_mutex);
+
+ hdpvr_i2c_read(dev, 0, 0x54, buffer, 1);
+
+ buffer[0] = 0;
+ buffer[1] = 0x8;
+ hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+ buffer[1] = 0x18;
+ hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+ mutex_unlock(&dev->i2c_mutex);
+
+ return 0;
+}
+
int hdpvr_register_i2c_adapter(struct hdpvr_device *dev)
{
- struct i2c_adapter *i2c_adap;
int retval = -ENOMEM;
- i2c_adap = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
- if (i2c_adap == NULL)
- goto error;
-
- strlcpy(i2c_adap->name, "Hauppauge HD PVR I2C",
- sizeof(i2c_adap->name));
- i2c_adap->algo = &hdpvr_algo;
- i2c_adap->owner = THIS_MODULE;
- i2c_adap->dev.parent = &dev->udev->dev;
+ hdpvr_activate_ir(dev);
- i2c_set_adapdata(i2c_adap, dev);
+ memcpy(&dev->i2c_adapter, &hdpvr_i2c_adapter_template,
+ sizeof(struct i2c_adapter));
+ dev->i2c_adapter.dev.parent = &dev->udev->dev;
- retval = i2c_add_adapter(i2c_adap);
+ i2c_set_adapdata(&dev->i2c_adapter, dev);
- if (!retval)
- dev->i2c_adapter = i2c_adap;
- else
- kfree(i2c_adap);
+ retval = i2c_add_adapter(&dev->i2c_adapter);
-error:
return retval;
}
+
+#endif