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[media] hdpvr: Add I2C and ir-kdb-i2c registration of the Zilog Z8 IR chip

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Adds I2C registration of the Zilog Z8F0811 IR microcontroller for either
lirc_zilog or ir-kbd-i2c to use.  This is a required step in removing
lirc_zilog's use of the deprecated struct i2c_adapter.id field.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-12-28 22:46:13 -03:00 committed by Mauro Carvalho Chehab
parent 41ca2b1ac2
commit ea6c06033f
3 changed files with 64 additions and 0 deletions
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5
drivers/media/video/hdpvr/hdpvr-core.c
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@ -385,6 +385,11 @@ static int hdpvr_probe(struct usb_interface *interface,
v4l2_err(&dev->v4l2_dev, "registering i2c adapter failed\n");
goto error;
}
/* until i2c is working properly */
retval = 0; /* hdpvr_register_i2c_ir(dev); */
if (retval < 0)
v4l2_err(&dev->v4l2_dev, "registering i2c IR devices failed\n");
#endif /* CONFIG_I2C */
/* let the user know what node this device is now attached to */

53
drivers/media/video/hdpvr/hdpvr-i2c.c
View File

@ -4,6 +4,9 @@
*
* 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.
@ -22,6 +25,56 @@
#define REQTYPE_I2C_WRITE 0xb0
#define REQTYPE_I2C_WRITE_STATT 0xd0
#define Z8F0811_IR_TX_I2C_ADDR 0x70
#define Z8F0811_IR_RX_I2C_ADDR 0x71
static const u8 ir_i2c_addrs[] = {
Z8F0811_IR_TX_I2C_ADDR,
Z8F0811_IR_RX_I2C_ADDR,
};
static const char * const ir_devicenames[] = {
"ir_tx_z8f0811_hdpvr",
"ir_rx_z8f0811_hdpvr",
};
static int hdpvr_new_i2c_ir(struct hdpvr_device *dev, struct i2c_adapter *adap,
const char *type, u8 addr)
{
struct i2c_board_info info;
struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
unsigned short addr_list[2] = { addr, I2C_CLIENT_END };
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, type, I2C_NAME_SIZE);
/* Our default information for ir-kbd-i2c.c to use */
switch (addr) {
case Z8F0811_IR_RX_I2C_ADDR:
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";
info.platform_data = init_data;
break;
}
return i2c_new_probed_device(adap, &info, addr_list, NULL) == NULL ?
-1 : 0;
}
int hdpvr_register_i2c_ir(struct hdpvr_device *dev)
{
int i;
int ret = 0;
for (i = 0; i < ARRAY_SIZE(ir_i2c_addrs); i++)
ret += hdpvr_new_i2c_ir(dev, dev->i2c_adapter,
ir_devicenames[i], ir_i2c_addrs[i]);
return ret;
}
static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
char *data, int len)
{

6
drivers/media/video/hdpvr/hdpvr.h
View File

@ -16,6 +16,7 @@
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/ir-kbd-i2c.h>
#define HDPVR_MAJOR_VERSION 0
#define HDPVR_MINOR_VERSION 2
@ -109,6 +110,9 @@ struct hdpvr_device {
/* I2C lock */
struct mutex i2c_mutex;
/* For passing data to ir-kbd-i2c */
struct IR_i2c_init_data ir_i2c_init_data;
/* usb control transfer buffer and lock */
struct mutex usbc_mutex;
u8 *usbc_buf;
@ -306,6 +310,8 @@ int hdpvr_cancel_queue(struct hdpvr_device *dev);
/* i2c adapter registration */
int hdpvr_register_i2c_adapter(struct hdpvr_device *dev);
int hdpvr_register_i2c_ir(struct hdpvr_device *dev);
/*========================================================================*/
/* buffer management */
int hdpvr_free_buffers(struct hdpvr_device *dev);