2 * ALPS touchpad PS/2 mouse driver
4 * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
5 * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
15 #include <linux/input/mt.h>
17 #define ALPS_PROTO_V1 0x100
18 #define ALPS_PROTO_V2 0x200
19 #define ALPS_PROTO_V3 0x300
20 #define ALPS_PROTO_V3_RUSHMORE 0x310
21 #define ALPS_PROTO_V4 0x400
22 #define ALPS_PROTO_V5 0x500
23 #define ALPS_PROTO_V6 0x600
24 #define ALPS_PROTO_V7 0x700 /* t3btl t4s */
25 #define ALPS_PROTO_V8 0x800 /* SS4btl SS4s */
29 #define DOLPHIN_COUNT_PER_ELECTRODE 64
30 #define DOLPHIN_PROFILE_XOFFSET 8 /* x-electrode offset */
31 #define DOLPHIN_PROFILE_YOFFSET 1 /* y-electrode offset */
34 * enum SS4_PACKET_ID - defines the packet type for V8
35 * SS4_PACKET_ID_IDLE: There's no finger and no button activity.
36 * SS4_PACKET_ID_ONE: There's one finger on touchpad
37 * or there's button activities.
38 * SS4_PACKET_ID_TWO: There's two or more fingers on touchpad
39 * SS4_PACKET_ID_MULTI: There's three or more fingers on touchpad
40 * SS4_PACKET_ID_STICK: A stick pointer packet
43 SS4_PACKET_ID_IDLE = 0,
50 #define SS4_COUNT_PER_ELECTRODE 256
51 #define SS4_NUMSENSOR_XOFFSET 7
52 #define SS4_NUMSENSOR_YOFFSET 7
53 #define SS4_MIN_PITCH_MM 50
55 #define SS4_MASK_NORMAL_BUTTONS 0x07
57 #define SS4PLUS_COUNT_PER_ELECTRODE 128
58 #define SS4PLUS_NUMSENSOR_XOFFSET 16
59 #define SS4PLUS_NUMSENSOR_YOFFSET 5
60 #define SS4PLUS_MIN_PITCH_MM 37
62 #define IS_SS4PLUS_DEV(_b) (((_b[0]) == 0x73) && \
63 ((_b[1]) == 0x03) && \
67 #define SS4_1F_X_V2(_b) ((_b[0] & 0x0007) | \
68 ((_b[1] << 3) & 0x0078) | \
69 ((_b[1] << 2) & 0x0380) | \
70 ((_b[2] << 5) & 0x1C00) \
73 #define SS4_1F_Y_V2(_b) (((_b[2]) & 0x000F) | \
74 ((_b[3] >> 2) & 0x0030) | \
75 ((_b[4] << 6) & 0x03C0) | \
76 ((_b[4] << 5) & 0x0C00) \
79 #define SS4_1F_Z_V2(_b) (((_b[5]) & 0x0F) | \
80 ((_b[5] >> 1) & 0x70) | \
84 #define SS4_1F_LFB_V2(_b) (((_b[2] >> 4) & 0x01) == 0x01)
86 #define SS4_MF_LF_V2(_b, _i) ((_b[1 + (_i) * 3] & 0x0004) == 0x0004)
88 #define SS4_BTN_V2(_b) ((_b[0] >> 5) & SS4_MASK_NORMAL_BUTTONS)
90 #define SS4_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3] << 5) & 0x00E0) | \
91 ((_b[1 + _i * 3] << 5) & 0x1F00) \
94 #define SS4_PLUS_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3] << 4) & 0x0070) | \
95 ((_b[1 + (_i) * 3] << 4) & 0x0F80) \
98 #define SS4_STD_MF_Y_V2(_b, _i) (((_b[1 + (_i) * 3] << 3) & 0x0010) | \
99 ((_b[2 + (_i) * 3] << 5) & 0x01E0) | \
100 ((_b[2 + (_i) * 3] << 4) & 0x0E00) \
103 #define SS4_BTL_MF_X_V2(_b, _i) (SS4_STD_MF_X_V2(_b, _i) | \
104 ((_b[0 + (_i) * 3] >> 3) & 0x0010) \
107 #define SS4_PLUS_BTL_MF_X_V2(_b, _i) (SS4_PLUS_STD_MF_X_V2(_b, _i) | \
108 ((_b[0 + (_i) * 3] >> 4) & 0x0008) \
111 #define SS4_BTL_MF_Y_V2(_b, _i) (SS4_STD_MF_Y_V2(_b, _i) | \
112 ((_b[0 + (_i) * 3] >> 3) & 0x0008) \
115 #define SS4_MF_Z_V2(_b, _i) (((_b[1 + (_i) * 3]) & 0x0001) | \
116 ((_b[1 + (_i) * 3] >> 1) & 0x0002) \
119 #define SS4_IS_MF_CONTINUE(_b) ((_b[2] & 0x10) == 0x10)
120 #define SS4_IS_5F_DETECTED(_b) ((_b[2] & 0x10) == 0x10)
123 #define SS4_MFPACKET_NO_AX 8160 /* X-Coordinate value */
124 #define SS4_MFPACKET_NO_AY 4080 /* Y-Coordinate value */
125 #define SS4_MFPACKET_NO_AX_BL 8176 /* Buttonless X-Coord value */
126 #define SS4_MFPACKET_NO_AY_BL 4088 /* Buttonless Y-Coord value */
127 #define SS4_PLUS_MFPACKET_NO_AX 4080 /* SS4 PLUS, X */
128 #define SS4_PLUS_MFPACKET_NO_AX_BL 4088 /* Buttonless SS4 PLUS, X */
131 * enum V7_PACKET_ID - defines the packet type for V7
132 * V7_PACKET_ID_IDLE: There's no finger and no button activity.
133 * V7_PACKET_ID_TWO: There's one or two non-resting fingers on touchpad
134 * or there's button activities.
135 * V7_PACKET_ID_MULTI: There are at least three non-resting fingers.
136 * V7_PACKET_ID_NEW: The finger position in slot is not continues from
144 V7_PACKET_ID_UNKNOWN,
148 * struct alps_protocol_info - information about protocol used by a device
149 * @version: Indicates V1/V2/V3/...
150 * @byte0: Helps figure out whether a position report packet matches the
151 * known format for this model. The first byte of the report, ANDed with
152 * mask0, should match byte0.
153 * @mask0: The mask used to check the first byte of the report.
154 * @flags: Additional device capabilities (passthrough port, trackstick, etc.).
156 struct alps_protocol_info {
163 * struct alps_model_info - touchpad ID table
164 * @signature: E7 response string to match.
165 * @command_mode_resp: For V3/V4 touchpads, the final byte of the EC response
166 * (aka command mode response) identifies the firmware minor version. This
167 * can be used to distinguish different hardware models which are not
168 * uniquely identifiable through their E7 responses.
169 * @protocol_info: information about protcol used by the device.
171 * Many (but not all) ALPS touchpads can be identified by looking at the
172 * values returned in the "E7 report" and/or the "EC report." This table
173 * lists a number of such touchpads.
175 struct alps_model_info {
177 u8 command_mode_resp;
178 struct alps_protocol_info protocol_info;
182 * struct alps_nibble_commands - encodings for register accesses
183 * @command: PS/2 command used for the nibble
184 * @data: Data supplied as an argument to the PS/2 command, if applicable
186 * The ALPS protocol uses magic sequences to transmit binary data to the
187 * touchpad, as it is generally not OK to send arbitrary bytes out the
188 * PS/2 port. Each of the sequences in this table sends one nibble of the
189 * register address or (write) data. Different versions of the ALPS protocol
190 * use slightly different encodings.
192 struct alps_nibble_commands {
197 struct alps_bitmap_point {
203 * struct alps_fields - decoded version of the report packet
204 * @x_map: Bitmap of active X positions for MT.
205 * @y_map: Bitmap of active Y positions for MT.
206 * @fingers: Number of fingers for MT.
207 * @pressure: Pressure.
208 * @st: position for ST.
209 * @mt: position for MT.
210 * @first_mp: Packet is the first of a multi-packet report.
211 * @is_mp: Packet is part of a multi-packet report.
212 * @left: Left touchpad button is active.
213 * @right: Right touchpad button is active.
214 * @middle: Middle touchpad button is active.
215 * @ts_left: Left trackstick button is active.
216 * @ts_right: Right trackstick button is active.
217 * @ts_middle: Middle trackstick button is active.
222 unsigned int fingers;
225 struct input_mt_pos st;
226 struct input_mt_pos mt[MAX_TOUCHES];
228 unsigned int first_mp:1;
229 unsigned int is_mp:1;
232 unsigned int right:1;
233 unsigned int middle:1;
235 unsigned int ts_left:1;
236 unsigned int ts_right:1;
237 unsigned int ts_middle:1;
241 * struct alps_data - private data structure for the ALPS driver
242 * @psmouse: Pointer to parent psmouse device
243 * @dev2: Trackstick device (can be NULL).
244 * @dev3: Generic PS/2 mouse (can be NULL, delayed registering).
245 * @phys2: Physical path for the trackstick device.
246 * @phys3: Physical path for the generic PS/2 mouse.
247 * @dev3_register_work: Delayed work for registering PS/2 mouse.
248 * @nibble_commands: Command mapping used for touchpad register accesses.
249 * @addr_command: Command used to tell the touchpad that a register address
251 * @proto_version: Indicates V1/V2/V3/...
252 * @byte0: Helps figure out whether a position report packet matches the
253 * known format for this model. The first byte of the report, ANDed with
254 * mask0, should match byte0.
255 * @mask0: The mask used to check the first byte of the report.
256 * @fw_ver: cached copy of firmware version (EC report)
257 * @flags: Additional device capabilities (passthrough port, trackstick, etc.).
258 * @x_max: Largest possible X position value.
259 * @y_max: Largest possible Y position value.
260 * @x_bits: Number of X bits in the MT bitmap.
261 * @y_bits: Number of Y bits in the MT bitmap.
262 * @hw_init: Protocol-specific hardware init function.
263 * @process_packet: Protocol-specific function to process a report packet.
264 * @decode_fields: Protocol-specific function to read packet bitfields.
265 * @set_abs_params: Protocol-specific function to configure the input_dev.
266 * @prev_fin: Finger bit from previous packet.
267 * @multi_packet: Multi-packet data in progress.
268 * @multi_data: Saved multi-packet data.
269 * @f: Decoded packet data fields.
270 * @quirks: Bitmap of ALPS_QUIRK_*.
271 * @timer: Timer for flushing out the final report packet in the stream.
274 struct psmouse *psmouse;
275 struct input_dev *dev2;
276 struct input_dev *dev3;
279 struct delayed_work dev3_register_work;
281 /* these are autodetected when the device is identified */
282 const struct alps_nibble_commands *nibble_commands;
296 int (*hw_init)(struct psmouse *psmouse);
297 void (*process_packet)(struct psmouse *psmouse);
298 int (*decode_fields)(struct alps_fields *f, unsigned char *p,
299 struct psmouse *psmouse);
300 void (*set_abs_params)(struct alps_data *priv, struct input_dev *dev1);
305 unsigned char multi_data[6];
306 struct alps_fields f;
308 struct timer_list timer;
311 #define ALPS_QUIRK_TRACKSTICK_BUTTONS 1 /* trakcstick buttons in trackstick packet */
313 #ifdef CONFIG_MOUSE_PS2_ALPS
314 int alps_detect(struct psmouse *psmouse, bool set_properties);
315 int alps_init(struct psmouse *psmouse);
317 inline int alps_detect(struct psmouse *psmouse, bool set_properties)
321 inline int alps_init(struct psmouse *psmouse)
325 #endif /* CONFIG_MOUSE_PS2_ALPS */