AD714x is very flexible, it can be used as buttons, scrollwheel, slider, touchpad at the same time. That depends on the boards. The platform_data for the device's "struct device" holds these information. The data-struct defined in this file descript the hardware feature of button/scrollwheel/slider/touchpad components on target boards, which need be filled in the arch/mach-/.
Signed-off-by: Barry Song <[email protected]> --- include/linux/spi/ad714x.h | 60 ++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 60 insertions(+), 0 deletions(-) create mode 100644 include/linux/spi/ad714x.h diff --git a/include/linux/spi/ad714x.h b/include/linux/spi/ad714x.h new file mode 100644 index 0000000..f6439a9 --- /dev/null +++ b/include/linux/spi/ad714x.h @@ -0,0 +1,60 @@ +/* + * include/linux/ad714x.h + * + * AD714x is very flexible, it can be used as buttons, scrollwheel, + * slider, touchpad at the same time. That depends on the boards. + * The platform_data for the device's "struct device" holds this + * information. + */ + + +#ifndef AD714X_HW_H +#define AD714X_HW_H + +#define STAGE_NUM 12 +#define STAGE_CFGREG_NUM 8 +#define SYS_CFGREG_NUM 8 + +/* board information which need be initialized in arch/mach... */ +struct ad714x_slider_plat { + int start_stage; + int end_stage; + int max_coord; +}; + +struct ad714x_wheel_plat { + int start_stage; + int end_stage; + int max_coord; +}; + +struct ad714x_touchpad_plat { + int x_start_stage; + int x_end_stage; + int x_max_coord; + + int y_start_stage; + int y_end_stage; + int y_max_coord; +}; + +struct ad714x_button_plat { + int keycode; + unsigned short l_mask; + unsigned short h_mask; +}; + +struct ad714x_platform_data { + int slider_num; + int wheel_num; + int touchpad_num; + int button_num; + struct ad714x_slider_plat *slider; + struct ad714x_wheel_plat *wheel; + struct ad714x_touchpad_plat *touchpad; + struct ad714x_button_plat *button; + unsigned short stage_cfg_reg[STAGE_NUM][STAGE_CFGREG_NUM]; + unsigned short sys_cfg_reg[SYS_CFGREG_NUM]; +}; + +#endif -- 1.5.6.3 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
