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Diffstat (limited to 'drivers/media/video/tuner-i2c.h')
-rw-r--r--drivers/media/video/tuner-i2c.h173
1 files changed, 0 insertions, 173 deletions
diff --git a/drivers/media/video/tuner-i2c.h b/drivers/media/video/tuner-i2c.h
deleted file mode 100644
index 3ad6c8e0b04..00000000000
--- a/drivers/media/video/tuner-i2c.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- tuner-i2c.h - i2c interface for different tuners
-
- Copyright (C) 2007 Michael Krufky (mkrufky@linuxtv.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.
-*/
-
-#ifndef __TUNER_I2C_H__
-#define __TUNER_I2C_H__
-
-#include <linux/i2c.h>
-
-struct tuner_i2c_props {
- u8 addr;
- struct i2c_adapter *adap;
-
- /* used for tuner instance management */
- int count;
- char *name;
-};
-
-static inline int tuner_i2c_xfer_send(struct tuner_i2c_props *props, char *buf, int len)
-{
- struct i2c_msg msg = { .addr = props->addr, .flags = 0,
- .buf = buf, .len = len };
- int ret = i2c_transfer(props->adap, &msg, 1);
-
- return (ret == 1) ? len : ret;
-}
-
-static inline int tuner_i2c_xfer_recv(struct tuner_i2c_props *props, char *buf, int len)
-{
- struct i2c_msg msg = { .addr = props->addr, .flags = I2C_M_RD,
- .buf = buf, .len = len };
- int ret = i2c_transfer(props->adap, &msg, 1);
-
- return (ret == 1) ? len : ret;
-}
-
-static inline int tuner_i2c_xfer_send_recv(struct tuner_i2c_props *props,
- char *obuf, int olen,
- char *ibuf, int ilen)
-{
- struct i2c_msg msg[2] = { { .addr = props->addr, .flags = 0,
- .buf = obuf, .len = olen },
- { .addr = props->addr, .flags = I2C_M_RD,
- .buf = ibuf, .len = ilen } };
- int ret = i2c_transfer(props->adap, msg, 2);
-
- return (ret == 2) ? ilen : ret;
-}
-
-/* Callers must declare as a global for the module:
- *
- * static LIST_HEAD(hybrid_tuner_instance_list);
- *
- * hybrid_tuner_instance_list should be the third argument
- * passed into hybrid_tuner_request_state().
- *
- * state structure must contain the following:
- *
- * struct list_head hybrid_tuner_instance_list;
- * struct tuner_i2c_props i2c_props;
- *
- * hybrid_tuner_instance_list (both within state structure and globally)
- * is only required if the driver is using hybrid_tuner_request_state
- * and hybrid_tuner_release_state to manage state sharing between
- * multiple instances of hybrid tuners.
- */
-
-#define tuner_printk(kernlvl, i2cprops, fmt, arg...) do { \
- printk(kernlvl "%s %d-%04x: " fmt, i2cprops.name, \
- i2cprops.adap ? \
- i2c_adapter_id(i2cprops.adap) : -1, \
- i2cprops.addr, ##arg); \
- } while (0)
-
-/* TO DO: convert all callers of these macros to pass in
- * struct tuner_i2c_props, then remove the macro wrappers */
-
-#define __tuner_warn(i2cprops, fmt, arg...) do { \
- tuner_printk(KERN_WARNING, i2cprops, fmt, ##arg); \
- } while (0)
-
-#define __tuner_info(i2cprops, fmt, arg...) do { \
- tuner_printk(KERN_INFO, i2cprops, fmt, ##arg); \
- } while (0)
-
-#define __tuner_err(i2cprops, fmt, arg...) do { \
- tuner_printk(KERN_ERR, i2cprops, fmt, ##arg); \
- } while (0)
-
-#define __tuner_dbg(i2cprops, fmt, arg...) do { \
- if ((debug)) \
- tuner_printk(KERN_DEBUG, i2cprops, fmt, ##arg); \
- } while (0)
-
-#define tuner_warn(fmt, arg...) __tuner_warn(priv->i2c_props, fmt, ##arg)
-#define tuner_info(fmt, arg...) __tuner_info(priv->i2c_props, fmt, ##arg)
-#define tuner_err(fmt, arg...) __tuner_err(priv->i2c_props, fmt, ##arg)
-#define tuner_dbg(fmt, arg...) __tuner_dbg(priv->i2c_props, fmt, ##arg)
-
-/****************************************************************************/
-
-/* The return value of hybrid_tuner_request_state indicates the number of
- * instances using this tuner object.
- *
- * 0 - no instances, indicates an error - kzalloc must have failed
- *
- * 1 - one instance, indicates that the tuner object was created successfully
- *
- * 2 (or more) instances, indicates that an existing tuner object was found
- */
-
-#define hybrid_tuner_request_state(type, state, list, i2cadap, i2caddr, devname)\
-({ \
- int __ret = 0; \
- list_for_each_entry(state, &list, hybrid_tuner_instance_list) { \
- if (((i2cadap) && (state->i2c_props.adap)) && \
- ((i2c_adapter_id(state->i2c_props.adap) == \
- i2c_adapter_id(i2cadap)) && \
- (i2caddr == state->i2c_props.addr))) { \
- __tuner_info(state->i2c_props, \
- "attaching existing instance\n"); \
- state->i2c_props.count++; \
- __ret = state->i2c_props.count; \
- break; \
- } \
- } \
- if (0 == __ret) { \
- state = kzalloc(sizeof(type), GFP_KERNEL); \
- if (NULL == state) \
- goto __fail; \
- state->i2c_props.addr = i2caddr; \
- state->i2c_props.adap = i2cadap; \
- state->i2c_props.name = devname; \
- __tuner_info(state->i2c_props, \
- "creating new instance\n"); \
- list_add_tail(&state->hybrid_tuner_instance_list, &list);\
- state->i2c_props.count++; \
- __ret = state->i2c_props.count; \
- } \
-__fail: \
- __ret; \
-})
-
-#define hybrid_tuner_release_state(state) \
-({ \
- int __ret; \
- state->i2c_props.count--; \
- __ret = state->i2c_props.count; \
- if (!state->i2c_props.count) { \
- __tuner_info(state->i2c_props, "destroying instance\n");\
- list_del(&state->hybrid_tuner_instance_list); \
- kfree(state); \
- } \
- __ret; \
-})
-
-#endif /* __TUNER_I2C_H__ */