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 | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h deleted file mode 100644 index d94ccacb40bf..000000000000 --- a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h +++ /dev/null @@ -1,136 +0,0 @@ -#ifndef __NOUVEAU_I2C_H__ -#define __NOUVEAU_I2C_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_AUX(n) (0x10 + (n)) -#define NV_I2C_EXT(n) (0x20 + (n)) -#define NV_I2C_DEFAULT(n) (0x80 + (n)) - -#define NV_I2C_TYPE_DCBI2C(n) (0x0000 | (n)) -#define NV_I2C_TYPE_EXTDDC(e) (0x0005 | (e) << 8) -#define NV_I2C_TYPE_EXTAUX(e) (0x0006 | (e) << 8) - -struct nvkm_i2c_ntfy_req { -#define NVKM_I2C_PLUG 0x01 -#define NVKM_I2C_UNPLUG 0x02 -#define NVKM_I2C_IRQ 0x04 -#define NVKM_I2C_DONE 0x08 -#define NVKM_I2C_ANY 0x0f - u8 mask; - u8 port; -}; - -struct nvkm_i2c_ntfy_rep { - u8 mask; -}; - -struct nouveau_i2c_port { - struct nouveau_object base; - struct i2c_adapter adapter; - struct mutex mutex; - - struct list_head head; - u8 index; - int aux; - - const struct nouveau_i2c_func *func; -}; - -struct nouveau_i2c_func { - void (*drive_scl)(struct nouveau_i2c_port *, int); - void (*drive_sda)(struct nouveau_i2c_port *, int); - int (*sense_scl)(struct nouveau_i2c_port *); - int (*sense_sda)(struct nouveau_i2c_port *); - - int (*aux)(struct nouveau_i2c_port *, bool, u8, u32, u8 *, u8); - int (*pattern)(struct nouveau_i2c_port *, int pattern); - int (*lnk_ctl)(struct nouveau_i2c_port *, int nr, int bw, bool enh); - int (*drv_ctl)(struct nouveau_i2c_port *, int lane, int sw, int pe); -}; - -struct nouveau_i2c_board_info { - struct i2c_board_info dev; - u8 udelay; /* set to 0 to use the standard delay */ -}; - -struct nouveau_i2c { - struct nouveau_subdev base; - struct nvkm_event event; - - struct nouveau_i2c_port *(*find)(struct nouveau_i2c *, u8 index); - struct nouveau_i2c_port *(*find_type)(struct nouveau_i2c *, u16 type); - int (*acquire_pad)(struct nouveau_i2c_port *, unsigned long timeout); - void (*release_pad)(struct nouveau_i2c_port *); - int (*acquire)(struct nouveau_i2c_port *, unsigned long timeout); - void (*release)(struct nouveau_i2c_port *); - int (*identify)(struct nouveau_i2c *, int index, - const char *what, struct nouveau_i2c_board_info *, - bool (*match)(struct nouveau_i2c_port *, - struct i2c_board_info *, void *), void *); - - wait_queue_head_t wait; - 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 *nv04_i2c_oclass; -extern struct nouveau_oclass *nv4e_i2c_oclass; -extern struct nouveau_oclass *nv50_i2c_oclass; -extern struct nouveau_oclass *nv94_i2c_oclass; -extern struct nouveau_oclass *nvd0_i2c_oclass; -extern struct nouveau_oclass *gf117_i2c_oclass; -extern struct nouveau_oclass *nve0_i2c_oclass; -extern struct nouveau_oclass *gm204_i2c_oclass; - -static inline int -nv_rdi2cr(struct nouveau_i2c_port *port, u8 addr, u8 reg) -{ - u8 val; - struct i2c_msg msgs[] = { - { .addr = addr, .flags = 0, .len = 1, .buf = ® }, - { .addr = addr, .flags = I2C_M_RD, .len = 1, .buf = &val }, - }; - - int ret = i2c_transfer(&port->adapter, msgs, 2); - if (ret != 2) - return -EIO; - - return val; -} - -static inline int -nv_wri2cr(struct nouveau_i2c_port *port, u8 addr, u8 reg, u8 val) -{ - u8 buf[2] = { reg, val }; - struct i2c_msg msgs[] = { - { .addr = addr, .flags = 0, .len = 2, .buf = buf }, - }; - - int ret = i2c_transfer(&port->adapter, msgs, 1); - if (ret != 1) - return -EIO; - - return 0; -} - -static inline bool -nv_probe_i2c(struct nouveau_i2c_port *port, u8 addr) -{ - return nv_rdi2cr(port, addr, 0) >= 0; -} - -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); - -#endif |