Differential D16698 Diff 48366 sys/dev/iicbus/input/iichid.h

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sys/dev/iicbus/input/iichid.h

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				/* $OpenBSD: iichid.h,v 1.4 2016/01/31 18:24:35 jcs Exp $ */
				/*
				* HID-over-i2c driver
				*
				* Copyright (c) 2015, 2016 joshua stein <jcs@openbsd.org>
				*
				* Permission to use, copy, modify, and distribute this software for any
				* purpose with or without fee is hereby granted, provided that the above
				* copyright notice and this permission notice appear in all copies.
				*
				* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
				* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
				* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
				* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
				* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
				* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
				* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
				*/

				#ifndef _IIC_HID_H_
				#define _IIC_HID_H_

				#include <dev/usb/hid.h>
				#include <sys/mouse.h>
				#include <sys/condvar.h>
				#include <sys/sysctl.h>
				#include <sys/taskqueue.h>

				/* 5.1.1 - HID Descriptor Format */
				struct i2c_hid_desc {
				uint16_t wHIDDescLength;
				uint16_t bcdVersion;
				uint16_t wReportDescLength;
				uint16_t wReportDescRegister;
				uint16_t wInputRegister;
				uint16_t wMaxInputLength;
				uint16_t wOutputRegister;
				uint16_t wMaxOutputLength;
				uint16_t wCommandRegister;
				uint16_t wDataRegister;
				uint16_t wVendorID;
				uint16_t wProductID;
				uint16_t wVersionID;
				uint32_t reserved;
				} __packed;

				#define MOUSE_FLAGS_MASK (HIO_CONST\|HIO_RELATIVE)
				#define MOUSE_FLAGS (HIO_RELATIVE)

				#define MS_BUF_SIZE 8 /* bytes */
				#define MS_BUFQ_MAXLEN 100 /* units */
				#define MS_BUTTON_MAX 31 /* exclusive, must be less than 32 */
				#define MS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
				#define MS_INFO_MAX 2 /* maximum number of HID sets */

				struct ms_info {
				struct hid_location sc_loc_w;
				struct hid_location sc_loc_x;
				struct hid_location sc_loc_y;
				struct hid_location sc_loc_z;
				struct hid_location sc_loc_t;
				struct hid_location sc_loc_btn[MS_BUTTON_MAX];

				uint32_t sc_flags;
				#define MS_FLAG_X_AXIS 0x0001
				#define MS_FLAG_Y_AXIS 0x0002
				#define MS_FLAG_Z_AXIS 0x0004
				#define MS_FLAG_T_AXIS 0x0008
				#define MS_FLAG_SBU 0x0010 /* spurious button up events */
				#define MS_FLAG_REVZ 0x0020 /* Z-axis is reversed */
				#define MS_FLAG_W_AXIS 0x0040

				uint8_t sc_iid_w;
				uint8_t sc_iid_x;
				uint8_t sc_iid_y;
				uint8_t sc_iid_z;
				uint8_t sc_iid_t;
				uint8_t sc_iid_btn[MS_BUTTON_MAX];
				uint8_t sc_buttons;
				};

				struct iichid_hw {
				uint8_t device_addr;
				uint16_t config_reg;
				};

				struct ms_tx_entry {
				STAILQ_ENTRY(ms_tx_entry) next;
				uint8_t buf[MS_BUF_SIZE];
				};

				STAILQ_HEAD(ms_tx_buf, ms_tx_entry);

				struct iichid_softc {
				device_t dev;
				struct cdev *cdev;
				bool isopen;
				struct ms_tx_entry rbuf;
				uint8_t bytesread;

				struct ms_tx_buf ms_unused_blocks;
				struct ms_tx_buf ms_queue;

				struct iichid_hw hw;

				task_fn_t *event_handler;

				struct i2c_hid_desc desc;
				struct ms_info info[MS_INFO_MAX];
				uint8_t sc_iid;
				mousehw_t sc_hw;
				mousestatus_t sc_status;
				mousemode_t sc_mode;
				struct mtx lock;

				struct cv cv;
				bool detaching;

				int invert;

				uint8_t *input_buf;
				int input_size;
				};

				struct acpi_iichid_softc {
				device_t dev;
				struct cdev *sc_devnode;

				struct iichid_hw hw;

				uint16_t irq;
				int irq_rid;
				struct resource* irq_res;
				void* irq_cookie;
				struct iichid_softc* iichid_sc;

				int sampling_rate;
				struct callout periodic_callout;
				bool callout_setup;

				struct taskqueue* taskqueue;
				struct task event_task;

				struct mtx lock;
				};

				int acpi_iichid_get_report(device_t dev, struct i2c_hid_desc* hid_desc, enum hid_kind type, int id, void *data, int len);


				#endif /* _IIC_HID_H_ */