diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/i2c.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/i2c.h | 79 |
1 files changed, 40 insertions, 39 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h index 1d08389..b93ab01 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h @@ -1,39 +1,18 @@ -/* - * Copyright 2009 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - #ifndef __NOUVEAU_I2C_H__ #define __NOUVEAU_I2C_H__ -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> -#include "drm_dp_helper.h" +#include <core/subdev.h> +#include <core/device.h> + +#include <subdev/bios.h> +#include <subdev/bios/i2c.h> #define NV_I2C_PORT(n) (0x00 + (n)) -#define NV_I2C_PORT_NUM 0x10 #define NV_I2C_DEFAULT(n) (0x80 + (n)) -struct nouveau_i2c_chan { +struct nouveau_i2c_port { struct i2c_adapter adapter; - struct drm_device *dev; + struct nouveau_i2c *i2c; struct i2c_algo_bit_data bit; struct list_head head; u8 index; @@ -44,16 +23,38 @@ struct nouveau_i2c_chan { u32 state; }; -int nouveau_i2c_init(struct drm_device *); -void nouveau_i2c_fini(struct drm_device *); -struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, u8 index); -bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr); -int nouveau_i2c_identify(struct drm_device *dev, const char *what, - struct i2c_board_info *info, - bool (*match)(struct nouveau_i2c_chan *, - struct i2c_board_info *), - int index); +struct nouveau_i2c { + struct nouveau_subdev base; + + struct nouveau_i2c_port *(*find)(struct nouveau_i2c *, u8 index); + int (*identify)(struct nouveau_i2c *, int index, + const char *what, struct i2c_board_info *, + bool (*match)(struct nouveau_i2c_port *, + struct i2c_board_info *)); + struct list_head ports; +}; + +static inline struct nouveau_i2c * +nouveau_i2c(void *obj) +{ + return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_I2C]; +} + +extern struct nouveau_oclass nouveau_i2c_oclass; + +void nouveau_i2c_drive_scl(void *, int); +void nouveau_i2c_drive_sda(void *, int); +int nouveau_i2c_sense_scl(void *); +int nouveau_i2c_sense_sda(void *); + +int nv_rdi2cr(struct nouveau_i2c_port *, u8 addr, u8 reg); +int nv_wri2cr(struct nouveau_i2c_port *, u8 addr, u8 reg, u8 val); +bool nv_probe_i2c(struct nouveau_i2c_port *, u8 addr); + +int nv_rdaux(struct nouveau_i2c_port *, u32 addr, u8 *data, u8 size); +int nv_wraux(struct nouveau_i2c_port *, u32 addr, u8 *data, u8 size); -extern const struct i2c_algorithm nouveau_dp_i2c_algo; +extern const struct i2c_algorithm nouveau_i2c_bit_algo; +extern const struct i2c_algorithm nouveau_i2c_aux_algo; -#endif /* __NOUVEAU_I2C_H__ */ +#endif |
