Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1 | /*- |
| 2 | * Finger Sensing Pad PS/2 mouse driver. |
| 3 | * |
| 4 | * Copyright (C) 2005-2007 Asia Vital Components Co., Ltd. |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 5 | * Copyright (C) 2005-2012 Tai-hwa Liang, Sentelic Corporation. |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | */ |
| 21 | |
| 22 | #include <linux/module.h> |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 23 | #include <linux/input.h> |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 24 | #include <linux/input/mt.h> |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 25 | #include <linux/ctype.h> |
| 26 | #include <linux/libps2.h> |
| 27 | #include <linux/serio.h> |
| 28 | #include <linux/jiffies.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/slab.h> |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 30 | |
| 31 | #include "psmouse.h" |
| 32 | #include "sentelic.h" |
| 33 | |
| 34 | /* |
| 35 | * Timeout for FSP PS/2 command only (in milliseconds). |
| 36 | */ |
| 37 | #define FSP_CMD_TIMEOUT 200 |
| 38 | #define FSP_CMD_TIMEOUT2 30 |
| 39 | |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 40 | #define GET_ABS_X(packet) ((packet[1] << 2) | ((packet[3] >> 2) & 0x03)) |
| 41 | #define GET_ABS_Y(packet) ((packet[2] << 2) | (packet[3] & 0x03)) |
| 42 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 43 | /** Driver version. */ |
Tai-hwa Liang | d3132c5 | 2012-05-07 08:45:58 -0700 | [diff] [blame] | 44 | static const char fsp_drv_ver[] = "1.1.0-K"; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * Make sure that the value being sent to FSP will not conflict with |
| 48 | * possible sample rate values. |
| 49 | */ |
| 50 | static unsigned char fsp_test_swap_cmd(unsigned char reg_val) |
| 51 | { |
| 52 | switch (reg_val) { |
| 53 | case 10: case 20: case 40: case 60: case 80: case 100: case 200: |
| 54 | /* |
| 55 | * The requested value being sent to FSP matched to possible |
| 56 | * sample rates, swap the given value such that the hardware |
| 57 | * wouldn't get confused. |
| 58 | */ |
| 59 | return (reg_val >> 4) | (reg_val << 4); |
| 60 | default: |
| 61 | return reg_val; /* swap isn't necessary */ |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /* |
| 66 | * Make sure that the value being sent to FSP will not conflict with certain |
| 67 | * commands. |
| 68 | */ |
| 69 | static unsigned char fsp_test_invert_cmd(unsigned char reg_val) |
| 70 | { |
| 71 | switch (reg_val) { |
| 72 | case 0xe9: case 0xee: case 0xf2: case 0xff: |
| 73 | /* |
| 74 | * The requested value being sent to FSP matched to certain |
| 75 | * commands, inverse the given value such that the hardware |
| 76 | * wouldn't get confused. |
| 77 | */ |
| 78 | return ~reg_val; |
| 79 | default: |
| 80 | return reg_val; /* inversion isn't necessary */ |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | static int fsp_reg_read(struct psmouse *psmouse, int reg_addr, int *reg_val) |
| 85 | { |
| 86 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 87 | unsigned char param[3]; |
| 88 | unsigned char addr; |
| 89 | int rc = -1; |
| 90 | |
| 91 | /* |
| 92 | * We need to shut off the device and switch it into command |
| 93 | * mode so we don't confuse our protocol handler. We don't need |
| 94 | * to do that for writes because sysfs set helper does this for |
| 95 | * us. |
| 96 | */ |
Paul Fox | c35c0e7 | 2012-02-24 00:51:37 -0800 | [diff] [blame] | 97 | psmouse_deactivate(psmouse); |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 98 | |
| 99 | ps2_begin_command(ps2dev); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 100 | |
| 101 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 102 | goto out; |
| 103 | |
| 104 | /* should return 0xfe(request for resending) */ |
| 105 | ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2); |
| 106 | /* should return 0xfc(failed) */ |
| 107 | ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2); |
| 108 | |
| 109 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 110 | goto out; |
| 111 | |
| 112 | if ((addr = fsp_test_invert_cmd(reg_addr)) != reg_addr) { |
| 113 | ps2_sendbyte(ps2dev, 0x68, FSP_CMD_TIMEOUT2); |
| 114 | } else if ((addr = fsp_test_swap_cmd(reg_addr)) != reg_addr) { |
| 115 | /* swapping is required */ |
| 116 | ps2_sendbyte(ps2dev, 0xcc, FSP_CMD_TIMEOUT2); |
| 117 | /* expect 0xfe */ |
| 118 | } else { |
| 119 | /* swapping isn't necessary */ |
| 120 | ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2); |
| 121 | /* expect 0xfe */ |
| 122 | } |
| 123 | /* should return 0xfc(failed) */ |
| 124 | ps2_sendbyte(ps2dev, addr, FSP_CMD_TIMEOUT); |
| 125 | |
| 126 | if (__ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) < 0) |
| 127 | goto out; |
| 128 | |
| 129 | *reg_val = param[2]; |
| 130 | rc = 0; |
| 131 | |
| 132 | out: |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 133 | ps2_end_command(ps2dev); |
Paul Fox | c35c0e7 | 2012-02-24 00:51:37 -0800 | [diff] [blame] | 134 | psmouse_activate(psmouse); |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 135 | psmouse_dbg(psmouse, |
| 136 | "READ REG: 0x%02x is 0x%02x (rc = %d)\n", |
| 137 | reg_addr, *reg_val, rc); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 138 | return rc; |
| 139 | } |
| 140 | |
| 141 | static int fsp_reg_write(struct psmouse *psmouse, int reg_addr, int reg_val) |
| 142 | { |
| 143 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 144 | unsigned char v; |
| 145 | int rc = -1; |
| 146 | |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 147 | ps2_begin_command(ps2dev); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 148 | |
| 149 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 150 | goto out; |
| 151 | |
| 152 | if ((v = fsp_test_invert_cmd(reg_addr)) != reg_addr) { |
| 153 | /* inversion is required */ |
| 154 | ps2_sendbyte(ps2dev, 0x74, FSP_CMD_TIMEOUT2); |
| 155 | } else { |
| 156 | if ((v = fsp_test_swap_cmd(reg_addr)) != reg_addr) { |
| 157 | /* swapping is required */ |
| 158 | ps2_sendbyte(ps2dev, 0x77, FSP_CMD_TIMEOUT2); |
| 159 | } else { |
| 160 | /* swapping isn't necessary */ |
| 161 | ps2_sendbyte(ps2dev, 0x55, FSP_CMD_TIMEOUT2); |
| 162 | } |
| 163 | } |
| 164 | /* write the register address in correct order */ |
| 165 | ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2); |
| 166 | |
| 167 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
Tai-hwa Liang | d9bae67 | 2011-12-23 01:14:31 -0800 | [diff] [blame] | 168 | goto out; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 169 | |
| 170 | if ((v = fsp_test_invert_cmd(reg_val)) != reg_val) { |
| 171 | /* inversion is required */ |
| 172 | ps2_sendbyte(ps2dev, 0x47, FSP_CMD_TIMEOUT2); |
| 173 | } else if ((v = fsp_test_swap_cmd(reg_val)) != reg_val) { |
| 174 | /* swapping is required */ |
| 175 | ps2_sendbyte(ps2dev, 0x44, FSP_CMD_TIMEOUT2); |
| 176 | } else { |
| 177 | /* swapping isn't necessary */ |
| 178 | ps2_sendbyte(ps2dev, 0x33, FSP_CMD_TIMEOUT2); |
| 179 | } |
| 180 | |
| 181 | /* write the register value in correct order */ |
| 182 | ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2); |
| 183 | rc = 0; |
| 184 | |
| 185 | out: |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 186 | ps2_end_command(ps2dev); |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 187 | psmouse_dbg(psmouse, |
| 188 | "WRITE REG: 0x%02x to 0x%02x (rc = %d)\n", |
| 189 | reg_addr, reg_val, rc); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 190 | return rc; |
| 191 | } |
| 192 | |
| 193 | /* Enable register clock gating for writing certain registers */ |
| 194 | static int fsp_reg_write_enable(struct psmouse *psmouse, bool enable) |
| 195 | { |
| 196 | int v, nv; |
| 197 | |
| 198 | if (fsp_reg_read(psmouse, FSP_REG_SYSCTL1, &v) == -1) |
| 199 | return -1; |
| 200 | |
| 201 | if (enable) |
| 202 | nv = v | FSP_BIT_EN_REG_CLK; |
| 203 | else |
| 204 | nv = v & ~FSP_BIT_EN_REG_CLK; |
| 205 | |
| 206 | /* only write if necessary */ |
| 207 | if (nv != v) |
| 208 | if (fsp_reg_write(psmouse, FSP_REG_SYSCTL1, nv) == -1) |
| 209 | return -1; |
| 210 | |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | static int fsp_page_reg_read(struct psmouse *psmouse, int *reg_val) |
| 215 | { |
| 216 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 217 | unsigned char param[3]; |
| 218 | int rc = -1; |
| 219 | |
Paul Fox | c35c0e7 | 2012-02-24 00:51:37 -0800 | [diff] [blame] | 220 | psmouse_deactivate(psmouse); |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 221 | |
| 222 | ps2_begin_command(ps2dev); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 223 | |
| 224 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 225 | goto out; |
| 226 | |
| 227 | ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2); |
| 228 | ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2); |
| 229 | |
| 230 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 231 | goto out; |
| 232 | |
| 233 | ps2_sendbyte(ps2dev, 0x83, FSP_CMD_TIMEOUT2); |
| 234 | ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2); |
| 235 | |
| 236 | /* get the returned result */ |
| 237 | if (__ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| 238 | goto out; |
| 239 | |
| 240 | *reg_val = param[2]; |
| 241 | rc = 0; |
| 242 | |
| 243 | out: |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 244 | ps2_end_command(ps2dev); |
Paul Fox | c35c0e7 | 2012-02-24 00:51:37 -0800 | [diff] [blame] | 245 | psmouse_activate(psmouse); |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 246 | psmouse_dbg(psmouse, |
| 247 | "READ PAGE REG: 0x%02x (rc = %d)\n", |
| 248 | *reg_val, rc); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 249 | return rc; |
| 250 | } |
| 251 | |
| 252 | static int fsp_page_reg_write(struct psmouse *psmouse, int reg_val) |
| 253 | { |
| 254 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 255 | unsigned char v; |
| 256 | int rc = -1; |
| 257 | |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 258 | ps2_begin_command(ps2dev); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 259 | |
| 260 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
| 261 | goto out; |
| 262 | |
| 263 | ps2_sendbyte(ps2dev, 0x38, FSP_CMD_TIMEOUT2); |
| 264 | ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2); |
| 265 | |
| 266 | if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) |
Tai-hwa Liang | d9bae67 | 2011-12-23 01:14:31 -0800 | [diff] [blame] | 267 | goto out; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 268 | |
| 269 | if ((v = fsp_test_invert_cmd(reg_val)) != reg_val) { |
| 270 | ps2_sendbyte(ps2dev, 0x47, FSP_CMD_TIMEOUT2); |
| 271 | } else if ((v = fsp_test_swap_cmd(reg_val)) != reg_val) { |
| 272 | /* swapping is required */ |
| 273 | ps2_sendbyte(ps2dev, 0x44, FSP_CMD_TIMEOUT2); |
| 274 | } else { |
| 275 | /* swapping isn't necessary */ |
| 276 | ps2_sendbyte(ps2dev, 0x33, FSP_CMD_TIMEOUT2); |
| 277 | } |
| 278 | |
| 279 | ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2); |
| 280 | rc = 0; |
| 281 | |
| 282 | out: |
Dmitry Torokhov | 181d683 | 2009-09-16 01:06:43 -0700 | [diff] [blame] | 283 | ps2_end_command(ps2dev); |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 284 | psmouse_dbg(psmouse, |
| 285 | "WRITE PAGE REG: to 0x%02x (rc = %d)\n", |
| 286 | reg_val, rc); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 287 | return rc; |
| 288 | } |
| 289 | |
| 290 | static int fsp_get_version(struct psmouse *psmouse, int *version) |
| 291 | { |
| 292 | if (fsp_reg_read(psmouse, FSP_REG_VERSION, version)) |
| 293 | return -EIO; |
| 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | static int fsp_get_revision(struct psmouse *psmouse, int *rev) |
| 299 | { |
| 300 | if (fsp_reg_read(psmouse, FSP_REG_REVISION, rev)) |
| 301 | return -EIO; |
| 302 | |
| 303 | return 0; |
| 304 | } |
| 305 | |
Tai-hwa Liang | d3132c5 | 2012-05-07 08:45:58 -0700 | [diff] [blame] | 306 | static int fsp_get_sn(struct psmouse *psmouse, int *sn) |
| 307 | { |
| 308 | int v0, v1, v2; |
| 309 | int rc = -EIO; |
| 310 | |
| 311 | /* production number since Cx is available at: 0x0b40 ~ 0x0b42 */ |
| 312 | if (fsp_page_reg_write(psmouse, FSP_PAGE_0B)) |
| 313 | goto out; |
| 314 | if (fsp_reg_read(psmouse, FSP_REG_SN0, &v0)) |
| 315 | goto out; |
| 316 | if (fsp_reg_read(psmouse, FSP_REG_SN1, &v1)) |
| 317 | goto out; |
| 318 | if (fsp_reg_read(psmouse, FSP_REG_SN2, &v2)) |
| 319 | goto out; |
| 320 | *sn = (v0 << 16) | (v1 << 8) | v2; |
| 321 | rc = 0; |
| 322 | out: |
| 323 | fsp_page_reg_write(psmouse, FSP_PAGE_DEFAULT); |
| 324 | return rc; |
| 325 | } |
| 326 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 327 | static int fsp_get_buttons(struct psmouse *psmouse, int *btn) |
| 328 | { |
| 329 | static const int buttons[] = { |
| 330 | 0x16, /* Left/Middle/Right/Forward/Backward & Scroll Up/Down */ |
| 331 | 0x06, /* Left/Middle/Right & Scroll Up/Down/Right/Left */ |
| 332 | 0x04, /* Left/Middle/Right & Scroll Up/Down */ |
| 333 | 0x02, /* Left/Middle/Right */ |
| 334 | }; |
| 335 | int val; |
| 336 | |
Tai-hwa Liang | 6ccbcf2 | 2011-12-29 09:47:36 -0800 | [diff] [blame] | 337 | if (fsp_reg_read(psmouse, FSP_REG_TMOD_STATUS, &val) == -1) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 338 | return -EIO; |
| 339 | |
| 340 | *btn = buttons[(val & 0x30) >> 4]; |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | /* Enable on-pad command tag output */ |
| 345 | static int fsp_opc_tag_enable(struct psmouse *psmouse, bool enable) |
| 346 | { |
| 347 | int v, nv; |
| 348 | int res = 0; |
| 349 | |
| 350 | if (fsp_reg_read(psmouse, FSP_REG_OPC_QDOWN, &v) == -1) { |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 351 | psmouse_err(psmouse, "Unable get OPC state.\n"); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 352 | return -EIO; |
| 353 | } |
| 354 | |
| 355 | if (enable) |
| 356 | nv = v | FSP_BIT_EN_OPC_TAG; |
| 357 | else |
| 358 | nv = v & ~FSP_BIT_EN_OPC_TAG; |
| 359 | |
| 360 | /* only write if necessary */ |
| 361 | if (nv != v) { |
| 362 | fsp_reg_write_enable(psmouse, true); |
| 363 | res = fsp_reg_write(psmouse, FSP_REG_OPC_QDOWN, nv); |
| 364 | fsp_reg_write_enable(psmouse, false); |
| 365 | } |
| 366 | |
| 367 | if (res != 0) { |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 368 | psmouse_err(psmouse, "Unable to enable OPC tag.\n"); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 369 | res = -EIO; |
| 370 | } |
| 371 | |
| 372 | return res; |
| 373 | } |
| 374 | |
| 375 | static int fsp_onpad_vscr(struct psmouse *psmouse, bool enable) |
| 376 | { |
| 377 | struct fsp_data *pad = psmouse->private; |
| 378 | int val; |
| 379 | |
| 380 | if (fsp_reg_read(psmouse, FSP_REG_ONPAD_CTL, &val)) |
| 381 | return -EIO; |
| 382 | |
| 383 | pad->vscroll = enable; |
| 384 | |
| 385 | if (enable) |
| 386 | val |= (FSP_BIT_FIX_VSCR | FSP_BIT_ONPAD_ENABLE); |
| 387 | else |
| 388 | val &= ~FSP_BIT_FIX_VSCR; |
| 389 | |
| 390 | if (fsp_reg_write(psmouse, FSP_REG_ONPAD_CTL, val)) |
| 391 | return -EIO; |
| 392 | |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | static int fsp_onpad_hscr(struct psmouse *psmouse, bool enable) |
| 397 | { |
| 398 | struct fsp_data *pad = psmouse->private; |
| 399 | int val, v2; |
| 400 | |
| 401 | if (fsp_reg_read(psmouse, FSP_REG_ONPAD_CTL, &val)) |
| 402 | return -EIO; |
| 403 | |
| 404 | if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &v2)) |
| 405 | return -EIO; |
| 406 | |
| 407 | pad->hscroll = enable; |
| 408 | |
| 409 | if (enable) { |
| 410 | val |= (FSP_BIT_FIX_HSCR | FSP_BIT_ONPAD_ENABLE); |
| 411 | v2 |= FSP_BIT_EN_MSID6; |
| 412 | } else { |
| 413 | val &= ~FSP_BIT_FIX_HSCR; |
| 414 | v2 &= ~(FSP_BIT_EN_MSID6 | FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8); |
| 415 | } |
| 416 | |
| 417 | if (fsp_reg_write(psmouse, FSP_REG_ONPAD_CTL, val)) |
| 418 | return -EIO; |
| 419 | |
| 420 | /* reconfigure horizontal scrolling packet output */ |
| 421 | if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, v2)) |
| 422 | return -EIO; |
| 423 | |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | /* |
| 428 | * Write device specific initial parameters. |
| 429 | * |
| 430 | * ex: 0xab 0xcd - write oxcd into register 0xab |
| 431 | */ |
| 432 | static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data, |
| 433 | const char *buf, size_t count) |
| 434 | { |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 435 | int reg, val; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 436 | char *rest; |
| 437 | ssize_t retval; |
| 438 | |
| 439 | reg = simple_strtoul(buf, &rest, 16); |
| 440 | if (rest == buf || *rest != ' ' || reg > 0xff) |
| 441 | return -EINVAL; |
| 442 | |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 443 | retval = kstrtoint(rest + 1, 16, &val); |
| 444 | if (retval) |
| 445 | return retval; |
| 446 | |
| 447 | if (val > 0xff) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 448 | return -EINVAL; |
| 449 | |
| 450 | if (fsp_reg_write_enable(psmouse, true)) |
| 451 | return -EIO; |
| 452 | |
| 453 | retval = fsp_reg_write(psmouse, reg, val) < 0 ? -EIO : count; |
| 454 | |
| 455 | fsp_reg_write_enable(psmouse, false); |
| 456 | |
| 457 | return count; |
| 458 | } |
| 459 | |
| 460 | PSMOUSE_DEFINE_WO_ATTR(setreg, S_IWUSR, NULL, fsp_attr_set_setreg); |
| 461 | |
| 462 | static ssize_t fsp_attr_show_getreg(struct psmouse *psmouse, |
| 463 | void *data, char *buf) |
| 464 | { |
| 465 | struct fsp_data *pad = psmouse->private; |
| 466 | |
| 467 | return sprintf(buf, "%02x%02x\n", pad->last_reg, pad->last_val); |
| 468 | } |
| 469 | |
| 470 | /* |
| 471 | * Read a register from device. |
| 472 | * |
| 473 | * ex: 0xab -- read content from register 0xab |
| 474 | */ |
| 475 | static ssize_t fsp_attr_set_getreg(struct psmouse *psmouse, void *data, |
| 476 | const char *buf, size_t count) |
| 477 | { |
| 478 | struct fsp_data *pad = psmouse->private; |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 479 | int reg, val, err; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 480 | |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 481 | err = kstrtoint(buf, 16, ®); |
| 482 | if (err) |
| 483 | return err; |
| 484 | |
| 485 | if (reg > 0xff) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 486 | return -EINVAL; |
| 487 | |
| 488 | if (fsp_reg_read(psmouse, reg, &val)) |
| 489 | return -EIO; |
| 490 | |
| 491 | pad->last_reg = reg; |
| 492 | pad->last_val = val; |
| 493 | |
| 494 | return count; |
| 495 | } |
| 496 | |
| 497 | PSMOUSE_DEFINE_ATTR(getreg, S_IWUSR | S_IRUGO, NULL, |
| 498 | fsp_attr_show_getreg, fsp_attr_set_getreg); |
| 499 | |
| 500 | static ssize_t fsp_attr_show_pagereg(struct psmouse *psmouse, |
| 501 | void *data, char *buf) |
| 502 | { |
| 503 | int val = 0; |
| 504 | |
| 505 | if (fsp_page_reg_read(psmouse, &val)) |
| 506 | return -EIO; |
| 507 | |
| 508 | return sprintf(buf, "%02x\n", val); |
| 509 | } |
| 510 | |
| 511 | static ssize_t fsp_attr_set_pagereg(struct psmouse *psmouse, void *data, |
| 512 | const char *buf, size_t count) |
| 513 | { |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 514 | int val, err; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 515 | |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 516 | err = kstrtoint(buf, 16, &val); |
| 517 | if (err) |
| 518 | return err; |
| 519 | |
| 520 | if (val > 0xff) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 521 | return -EINVAL; |
| 522 | |
| 523 | if (fsp_page_reg_write(psmouse, val)) |
| 524 | return -EIO; |
| 525 | |
| 526 | return count; |
| 527 | } |
| 528 | |
| 529 | PSMOUSE_DEFINE_ATTR(page, S_IWUSR | S_IRUGO, NULL, |
| 530 | fsp_attr_show_pagereg, fsp_attr_set_pagereg); |
| 531 | |
| 532 | static ssize_t fsp_attr_show_vscroll(struct psmouse *psmouse, |
| 533 | void *data, char *buf) |
| 534 | { |
| 535 | struct fsp_data *pad = psmouse->private; |
| 536 | |
| 537 | return sprintf(buf, "%d\n", pad->vscroll); |
| 538 | } |
| 539 | |
| 540 | static ssize_t fsp_attr_set_vscroll(struct psmouse *psmouse, void *data, |
| 541 | const char *buf, size_t count) |
| 542 | { |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 543 | unsigned int val; |
| 544 | int err; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 545 | |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 546 | err = kstrtouint(buf, 10, &val); |
| 547 | if (err) |
| 548 | return err; |
| 549 | |
| 550 | if (val > 1) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 551 | return -EINVAL; |
| 552 | |
| 553 | fsp_onpad_vscr(psmouse, val); |
| 554 | |
| 555 | return count; |
| 556 | } |
| 557 | |
| 558 | PSMOUSE_DEFINE_ATTR(vscroll, S_IWUSR | S_IRUGO, NULL, |
| 559 | fsp_attr_show_vscroll, fsp_attr_set_vscroll); |
| 560 | |
| 561 | static ssize_t fsp_attr_show_hscroll(struct psmouse *psmouse, |
| 562 | void *data, char *buf) |
| 563 | { |
| 564 | struct fsp_data *pad = psmouse->private; |
| 565 | |
| 566 | return sprintf(buf, "%d\n", pad->hscroll); |
| 567 | } |
| 568 | |
| 569 | static ssize_t fsp_attr_set_hscroll(struct psmouse *psmouse, void *data, |
| 570 | const char *buf, size_t count) |
| 571 | { |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 572 | unsigned int val; |
| 573 | int err; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 574 | |
JJ Ding | 76496e7 | 2011-11-09 10:20:14 -0800 | [diff] [blame] | 575 | err = kstrtouint(buf, 10, &val); |
| 576 | if (err) |
| 577 | return err; |
| 578 | |
| 579 | if (val > 1) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 580 | return -EINVAL; |
| 581 | |
| 582 | fsp_onpad_hscr(psmouse, val); |
| 583 | |
| 584 | return count; |
| 585 | } |
| 586 | |
| 587 | PSMOUSE_DEFINE_ATTR(hscroll, S_IWUSR | S_IRUGO, NULL, |
| 588 | fsp_attr_show_hscroll, fsp_attr_set_hscroll); |
| 589 | |
| 590 | static ssize_t fsp_attr_show_flags(struct psmouse *psmouse, |
| 591 | void *data, char *buf) |
| 592 | { |
| 593 | struct fsp_data *pad = psmouse->private; |
| 594 | |
| 595 | return sprintf(buf, "%c\n", |
| 596 | pad->flags & FSPDRV_FLAG_EN_OPC ? 'C' : 'c'); |
| 597 | } |
| 598 | |
| 599 | static ssize_t fsp_attr_set_flags(struct psmouse *psmouse, void *data, |
| 600 | const char *buf, size_t count) |
| 601 | { |
| 602 | struct fsp_data *pad = psmouse->private; |
| 603 | size_t i; |
| 604 | |
| 605 | for (i = 0; i < count; i++) { |
| 606 | switch (buf[i]) { |
| 607 | case 'C': |
| 608 | pad->flags |= FSPDRV_FLAG_EN_OPC; |
| 609 | break; |
| 610 | case 'c': |
| 611 | pad->flags &= ~FSPDRV_FLAG_EN_OPC; |
| 612 | break; |
| 613 | default: |
| 614 | return -EINVAL; |
| 615 | } |
| 616 | } |
| 617 | return count; |
| 618 | } |
| 619 | |
| 620 | PSMOUSE_DEFINE_ATTR(flags, S_IWUSR | S_IRUGO, NULL, |
| 621 | fsp_attr_show_flags, fsp_attr_set_flags); |
| 622 | |
| 623 | static ssize_t fsp_attr_show_ver(struct psmouse *psmouse, |
| 624 | void *data, char *buf) |
| 625 | { |
| 626 | return sprintf(buf, "Sentelic FSP kernel module %s\n", fsp_drv_ver); |
| 627 | } |
| 628 | |
| 629 | PSMOUSE_DEFINE_RO_ATTR(ver, S_IRUGO, NULL, fsp_attr_show_ver); |
| 630 | |
| 631 | static struct attribute *fsp_attributes[] = { |
| 632 | &psmouse_attr_setreg.dattr.attr, |
| 633 | &psmouse_attr_getreg.dattr.attr, |
| 634 | &psmouse_attr_page.dattr.attr, |
| 635 | &psmouse_attr_vscroll.dattr.attr, |
| 636 | &psmouse_attr_hscroll.dattr.attr, |
| 637 | &psmouse_attr_flags.dattr.attr, |
| 638 | &psmouse_attr_ver.dattr.attr, |
| 639 | NULL |
| 640 | }; |
| 641 | |
| 642 | static struct attribute_group fsp_attribute_group = { |
| 643 | .attrs = fsp_attributes, |
| 644 | }; |
| 645 | |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 646 | #ifdef FSP_DEBUG |
| 647 | static void fsp_packet_debug(struct psmouse *psmouse, unsigned char packet[]) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 648 | { |
| 649 | static unsigned int ps2_packet_cnt; |
| 650 | static unsigned int ps2_last_second; |
| 651 | unsigned int jiffies_msec; |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 652 | const char *packet_type = "UNKNOWN"; |
| 653 | unsigned short abs_x = 0, abs_y = 0; |
| 654 | |
| 655 | /* Interpret & dump the packet data. */ |
| 656 | switch (packet[0] >> FSP_PKT_TYPE_SHIFT) { |
| 657 | case FSP_PKT_TYPE_ABS: |
| 658 | packet_type = "Absolute"; |
| 659 | abs_x = GET_ABS_X(packet); |
| 660 | abs_y = GET_ABS_Y(packet); |
| 661 | break; |
| 662 | case FSP_PKT_TYPE_NORMAL: |
| 663 | packet_type = "Normal"; |
| 664 | break; |
| 665 | case FSP_PKT_TYPE_NOTIFY: |
| 666 | packet_type = "Notify"; |
| 667 | break; |
| 668 | case FSP_PKT_TYPE_NORMAL_OPC: |
| 669 | packet_type = "Normal-OPC"; |
| 670 | break; |
| 671 | } |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 672 | |
| 673 | ps2_packet_cnt++; |
| 674 | jiffies_msec = jiffies_to_msecs(jiffies); |
Dmitry Torokhov | b5d2170 | 2011-10-10 18:27:03 -0700 | [diff] [blame] | 675 | psmouse_dbg(psmouse, |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 676 | "%08dms %s packets: %02x, %02x, %02x, %02x; " |
| 677 | "abs_x: %d, abs_y: %d\n", |
| 678 | jiffies_msec, packet_type, |
| 679 | packet[0], packet[1], packet[2], packet[3], abs_x, abs_y); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 680 | |
| 681 | if (jiffies_msec - ps2_last_second > 1000) { |
Dmitry Torokhov | b5d2170 | 2011-10-10 18:27:03 -0700 | [diff] [blame] | 682 | psmouse_dbg(psmouse, "PS/2 packets/sec = %d\n", ps2_packet_cnt); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 683 | ps2_packet_cnt = 0; |
| 684 | ps2_last_second = jiffies_msec; |
| 685 | } |
| 686 | } |
| 687 | #else |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 688 | static void fsp_packet_debug(struct psmouse *psmouse, unsigned char packet[]) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 689 | { |
| 690 | } |
| 691 | #endif |
| 692 | |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 693 | static void fsp_set_slot(struct input_dev *dev, int slot, bool active, |
| 694 | unsigned int x, unsigned int y) |
| 695 | { |
| 696 | input_mt_slot(dev, slot); |
| 697 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); |
| 698 | if (active) { |
| 699 | input_report_abs(dev, ABS_MT_POSITION_X, x); |
| 700 | input_report_abs(dev, ABS_MT_POSITION_Y, y); |
| 701 | } |
| 702 | } |
| 703 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 704 | static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse) |
| 705 | { |
| 706 | struct input_dev *dev = psmouse->dev; |
| 707 | struct fsp_data *ad = psmouse->private; |
| 708 | unsigned char *packet = psmouse->packet; |
| 709 | unsigned char button_status = 0, lscroll = 0, rscroll = 0; |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 710 | unsigned short abs_x, abs_y, fgrs = 0; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 711 | int rel_x, rel_y; |
| 712 | |
| 713 | if (psmouse->pktcnt < 4) |
| 714 | return PSMOUSE_GOOD_DATA; |
| 715 | |
| 716 | /* |
| 717 | * Full packet accumulated, process it |
| 718 | */ |
| 719 | |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 720 | fsp_packet_debug(psmouse, packet); |
| 721 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 722 | switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) { |
| 723 | case FSP_PKT_TYPE_ABS: |
Tai-hwa Liang | 30ebb7f | 2012-09-19 11:10:47 -0700 | [diff] [blame] | 724 | |
| 725 | if ((packet[0] == 0x48 || packet[0] == 0x49) && |
| 726 | packet[1] == 0 && packet[2] == 0) { |
| 727 | /* |
| 728 | * Ignore coordinate noise when finger leaving the |
| 729 | * surface, otherwise cursor may jump to upper-left |
| 730 | * corner. |
| 731 | */ |
| 732 | packet[3] &= 0xf0; |
| 733 | } |
| 734 | |
Oskari Saarenmaa | 727f9b4 | 2012-03-25 17:17:27 -0700 | [diff] [blame] | 735 | abs_x = GET_ABS_X(packet); |
| 736 | abs_y = GET_ABS_Y(packet); |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 737 | |
| 738 | if (packet[0] & FSP_PB0_MFMC) { |
| 739 | /* |
| 740 | * MFMC packet: assume that there are two fingers on |
| 741 | * pad |
| 742 | */ |
| 743 | fgrs = 2; |
| 744 | |
| 745 | /* MFMC packet */ |
| 746 | if (packet[0] & FSP_PB0_MFMC_FGR2) { |
| 747 | /* 2nd finger */ |
| 748 | if (ad->last_mt_fgr == 2) { |
| 749 | /* |
| 750 | * workaround for buggy firmware |
| 751 | * which doesn't clear MFMC bit if |
| 752 | * the 1st finger is up |
| 753 | */ |
| 754 | fgrs = 1; |
| 755 | fsp_set_slot(dev, 0, false, 0, 0); |
| 756 | } |
| 757 | ad->last_mt_fgr = 2; |
| 758 | |
| 759 | fsp_set_slot(dev, 1, fgrs == 2, abs_x, abs_y); |
| 760 | } else { |
| 761 | /* 1st finger */ |
| 762 | if (ad->last_mt_fgr == 1) { |
| 763 | /* |
| 764 | * workaround for buggy firmware |
| 765 | * which doesn't clear MFMC bit if |
| 766 | * the 2nd finger is up |
| 767 | */ |
| 768 | fgrs = 1; |
| 769 | fsp_set_slot(dev, 1, false, 0, 0); |
| 770 | } |
| 771 | ad->last_mt_fgr = 1; |
| 772 | fsp_set_slot(dev, 0, fgrs != 0, abs_x, abs_y); |
| 773 | } |
| 774 | } else { |
| 775 | /* SFAC packet */ |
Oskari Saarenmaa | d626dad | 2012-04-03 09:46:32 -0700 | [diff] [blame] | 776 | if ((packet[0] & (FSP_PB0_LBTN|FSP_PB0_PHY_BTN)) == |
| 777 | FSP_PB0_LBTN) { |
| 778 | /* On-pad click in SFAC mode should be handled |
| 779 | * by userspace. On-pad clicks in MFMC mode |
| 780 | * are real clickpad clicks, and not ignored. |
| 781 | */ |
| 782 | packet[0] &= ~FSP_PB0_LBTN; |
| 783 | } |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 784 | |
| 785 | /* no multi-finger information */ |
| 786 | ad->last_mt_fgr = 0; |
| 787 | |
| 788 | if (abs_x != 0 && abs_y != 0) |
| 789 | fgrs = 1; |
| 790 | |
| 791 | fsp_set_slot(dev, 0, fgrs > 0, abs_x, abs_y); |
| 792 | fsp_set_slot(dev, 1, false, 0, 0); |
| 793 | } |
Christophe TORDEUX | a254616 | 2012-12-24 09:20:40 -0800 | [diff] [blame^] | 794 | if (fgrs == 1 || (fgrs == 2 && !(packet[0] & FSP_PB0_MFMC_FGR2))) { |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 795 | input_report_abs(dev, ABS_X, abs_x); |
| 796 | input_report_abs(dev, ABS_Y, abs_y); |
| 797 | } |
| 798 | input_report_key(dev, BTN_LEFT, packet[0] & 0x01); |
| 799 | input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); |
| 800 | input_report_key(dev, BTN_TOUCH, fgrs); |
| 801 | input_report_key(dev, BTN_TOOL_FINGER, fgrs == 1); |
| 802 | input_report_key(dev, BTN_TOOL_DOUBLETAP, fgrs == 2); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 803 | break; |
| 804 | |
| 805 | case FSP_PKT_TYPE_NORMAL_OPC: |
| 806 | /* on-pad click, filter it if necessary */ |
| 807 | if ((ad->flags & FSPDRV_FLAG_EN_OPC) != FSPDRV_FLAG_EN_OPC) |
Tai-hwa Liang | 7b85f73 | 2012-03-25 17:17:00 -0700 | [diff] [blame] | 808 | packet[0] &= ~FSP_PB0_LBTN; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 809 | /* fall through */ |
| 810 | |
| 811 | case FSP_PKT_TYPE_NORMAL: |
| 812 | /* normal packet */ |
| 813 | /* special packet data translation from on-pad packets */ |
| 814 | if (packet[3] != 0) { |
| 815 | if (packet[3] & BIT(0)) |
| 816 | button_status |= 0x01; /* wheel down */ |
| 817 | if (packet[3] & BIT(1)) |
| 818 | button_status |= 0x0f; /* wheel up */ |
| 819 | if (packet[3] & BIT(2)) |
Tai-hwa Liang | c332e9f | 2010-01-13 00:25:35 -0800 | [diff] [blame] | 820 | button_status |= BIT(4);/* horizontal left */ |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 821 | if (packet[3] & BIT(3)) |
Tai-hwa Liang | c332e9f | 2010-01-13 00:25:35 -0800 | [diff] [blame] | 822 | button_status |= BIT(5);/* horizontal right */ |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 823 | /* push back to packet queue */ |
| 824 | if (button_status != 0) |
| 825 | packet[3] = button_status; |
| 826 | rscroll = (packet[3] >> 4) & 1; |
| 827 | lscroll = (packet[3] >> 5) & 1; |
| 828 | } |
| 829 | /* |
| 830 | * Processing wheel up/down and extra button events |
| 831 | */ |
| 832 | input_report_rel(dev, REL_WHEEL, |
| 833 | (int)(packet[3] & 8) - (int)(packet[3] & 7)); |
| 834 | input_report_rel(dev, REL_HWHEEL, lscroll - rscroll); |
| 835 | input_report_key(dev, BTN_BACK, lscroll); |
| 836 | input_report_key(dev, BTN_FORWARD, rscroll); |
| 837 | |
| 838 | /* |
| 839 | * Standard PS/2 Mouse |
| 840 | */ |
| 841 | input_report_key(dev, BTN_LEFT, packet[0] & 1); |
| 842 | input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); |
| 843 | input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); |
| 844 | |
| 845 | rel_x = packet[1] ? (int)packet[1] - (int)((packet[0] << 4) & 0x100) : 0; |
| 846 | rel_y = packet[2] ? (int)((packet[0] << 3) & 0x100) - (int)packet[2] : 0; |
| 847 | |
| 848 | input_report_rel(dev, REL_X, rel_x); |
| 849 | input_report_rel(dev, REL_Y, rel_y); |
| 850 | break; |
| 851 | } |
| 852 | |
| 853 | input_sync(dev); |
| 854 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 855 | return PSMOUSE_FULL_PACKET; |
| 856 | } |
| 857 | |
| 858 | static int fsp_activate_protocol(struct psmouse *psmouse) |
| 859 | { |
| 860 | struct fsp_data *pad = psmouse->private; |
| 861 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 862 | unsigned char param[2]; |
| 863 | int val; |
| 864 | |
| 865 | /* |
| 866 | * Standard procedure to enter FSP Intellimouse mode |
| 867 | * (scrolling wheel, 4th and 5th buttons) |
| 868 | */ |
| 869 | param[0] = 200; |
| 870 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); |
| 871 | param[0] = 200; |
| 872 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); |
| 873 | param[0] = 80; |
| 874 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); |
| 875 | |
| 876 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); |
| 877 | if (param[0] != 0x04) { |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 878 | psmouse_err(psmouse, |
| 879 | "Unable to enable 4 bytes packet format.\n"); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 880 | return -EIO; |
| 881 | } |
| 882 | |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 883 | if (pad->ver < FSP_VER_STL3888_C0) { |
| 884 | /* Preparing relative coordinates output for older hardware */ |
| 885 | if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &val)) { |
| 886 | psmouse_err(psmouse, |
| 887 | "Unable to read SYSCTL5 register.\n"); |
| 888 | return -EIO; |
| 889 | } |
| 890 | |
| 891 | if (fsp_get_buttons(psmouse, &pad->buttons)) { |
| 892 | psmouse_err(psmouse, |
| 893 | "Unable to retrieve number of buttons.\n"); |
| 894 | return -EIO; |
| 895 | } |
| 896 | |
| 897 | val &= ~(FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8 | FSP_BIT_EN_AUTO_MSID8); |
| 898 | /* Ensure we are not in absolute mode */ |
| 899 | val &= ~FSP_BIT_EN_PKT_G0; |
| 900 | if (pad->buttons == 0x06) { |
| 901 | /* Left/Middle/Right & Scroll Up/Down/Right/Left */ |
| 902 | val |= FSP_BIT_EN_MSID6; |
| 903 | } |
| 904 | |
| 905 | if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, val)) { |
| 906 | psmouse_err(psmouse, |
| 907 | "Unable to set up required mode bits.\n"); |
| 908 | return -EIO; |
| 909 | } |
| 910 | |
| 911 | /* |
| 912 | * Enable OPC tags such that driver can tell the difference |
| 913 | * between on-pad and real button click |
| 914 | */ |
| 915 | if (fsp_opc_tag_enable(psmouse, true)) |
| 916 | psmouse_warn(psmouse, |
| 917 | "Failed to enable OPC tag mode.\n"); |
| 918 | /* enable on-pad click by default */ |
| 919 | pad->flags |= FSPDRV_FLAG_EN_OPC; |
| 920 | |
| 921 | /* Enable on-pad vertical and horizontal scrolling */ |
| 922 | fsp_onpad_vscr(psmouse, true); |
| 923 | fsp_onpad_hscr(psmouse, true); |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 924 | } else { |
| 925 | /* Enable absolute coordinates output for Cx/Dx hardware */ |
| 926 | if (fsp_reg_write(psmouse, FSP_REG_SWC1, |
| 927 | FSP_BIT_SWC1_EN_ABS_1F | |
| 928 | FSP_BIT_SWC1_EN_ABS_2F | |
| 929 | FSP_BIT_SWC1_EN_FUP_OUT | |
| 930 | FSP_BIT_SWC1_EN_ABS_CON)) { |
| 931 | psmouse_err(psmouse, |
| 932 | "Unable to enable absolute coordinates output.\n"); |
| 933 | return -EIO; |
| 934 | } |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 935 | } |
| 936 | |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 937 | return 0; |
| 938 | } |
| 939 | |
| 940 | static int fsp_set_input_params(struct psmouse *psmouse) |
| 941 | { |
| 942 | struct input_dev *dev = psmouse->dev; |
| 943 | struct fsp_data *pad = psmouse->private; |
| 944 | |
| 945 | if (pad->ver < FSP_VER_STL3888_C0) { |
| 946 | __set_bit(BTN_MIDDLE, dev->keybit); |
| 947 | __set_bit(BTN_BACK, dev->keybit); |
| 948 | __set_bit(BTN_FORWARD, dev->keybit); |
| 949 | __set_bit(REL_WHEEL, dev->relbit); |
| 950 | __set_bit(REL_HWHEEL, dev->relbit); |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 951 | } else { |
| 952 | /* |
| 953 | * Hardware prior to Cx performs much better in relative mode; |
| 954 | * hence, only enable absolute coordinates output as well as |
| 955 | * multi-touch output for the newer hardware. |
| 956 | * |
| 957 | * Maximum coordinates can be computed as: |
| 958 | * |
| 959 | * number of scanlines * 64 - 57 |
| 960 | * |
| 961 | * where number of X/Y scanline lines are 16/12. |
| 962 | */ |
| 963 | int abs_x = 967, abs_y = 711; |
| 964 | |
| 965 | __set_bit(EV_ABS, dev->evbit); |
| 966 | __clear_bit(EV_REL, dev->evbit); |
| 967 | __set_bit(BTN_TOUCH, dev->keybit); |
| 968 | __set_bit(BTN_TOOL_FINGER, dev->keybit); |
| 969 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
| 970 | __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); |
| 971 | |
| 972 | input_set_abs_params(dev, ABS_X, 0, abs_x, 0, 0); |
| 973 | input_set_abs_params(dev, ABS_Y, 0, abs_y, 0, 0); |
Henrik Rydberg | b4adbbe | 2012-08-11 22:07:55 +0200 | [diff] [blame] | 974 | input_mt_init_slots(dev, 2, 0); |
Tai-hwa Liang | a4c8507 | 2012-03-25 17:16:36 -0700 | [diff] [blame] | 975 | input_set_abs_params(dev, ABS_MT_POSITION_X, 0, abs_x, 0, 0); |
| 976 | input_set_abs_params(dev, ABS_MT_POSITION_Y, 0, abs_y, 0, 0); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 977 | } |
| 978 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 979 | return 0; |
| 980 | } |
| 981 | |
Dmitry Torokhov | b7802c5 | 2009-09-09 19:13:20 -0700 | [diff] [blame] | 982 | int fsp_detect(struct psmouse *psmouse, bool set_properties) |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 983 | { |
| 984 | int id; |
| 985 | |
| 986 | if (fsp_reg_read(psmouse, FSP_REG_DEVICE_ID, &id)) |
| 987 | return -EIO; |
| 988 | |
| 989 | if (id != 0x01) |
| 990 | return -ENODEV; |
| 991 | |
| 992 | if (set_properties) { |
| 993 | psmouse->vendor = "Sentelic"; |
| 994 | psmouse->name = "FingerSensingPad"; |
| 995 | } |
| 996 | |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | static void fsp_reset(struct psmouse *psmouse) |
| 1001 | { |
| 1002 | fsp_opc_tag_enable(psmouse, false); |
| 1003 | fsp_onpad_vscr(psmouse, false); |
| 1004 | fsp_onpad_hscr(psmouse, false); |
| 1005 | } |
| 1006 | |
| 1007 | static void fsp_disconnect(struct psmouse *psmouse) |
| 1008 | { |
| 1009 | sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, |
| 1010 | &fsp_attribute_group); |
| 1011 | |
| 1012 | fsp_reset(psmouse); |
| 1013 | kfree(psmouse->private); |
| 1014 | } |
| 1015 | |
| 1016 | static int fsp_reconnect(struct psmouse *psmouse) |
| 1017 | { |
| 1018 | int version; |
| 1019 | |
| 1020 | if (fsp_detect(psmouse, 0)) |
| 1021 | return -ENODEV; |
| 1022 | |
| 1023 | if (fsp_get_version(psmouse, &version)) |
| 1024 | return -ENODEV; |
| 1025 | |
| 1026 | if (fsp_activate_protocol(psmouse)) |
| 1027 | return -EIO; |
| 1028 | |
| 1029 | return 0; |
| 1030 | } |
| 1031 | |
| 1032 | int fsp_init(struct psmouse *psmouse) |
| 1033 | { |
| 1034 | struct fsp_data *priv; |
Tai-hwa Liang | d3132c5 | 2012-05-07 08:45:58 -0700 | [diff] [blame] | 1035 | int ver, rev, sn = 0; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1036 | int error; |
| 1037 | |
| 1038 | if (fsp_get_version(psmouse, &ver) || |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 1039 | fsp_get_revision(psmouse, &rev)) { |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1040 | return -ENODEV; |
| 1041 | } |
Tai-hwa Liang | d3132c5 | 2012-05-07 08:45:58 -0700 | [diff] [blame] | 1042 | if (ver >= FSP_VER_STL3888_C0) { |
| 1043 | /* firmware information is only available since C0 */ |
| 1044 | fsp_get_sn(psmouse, &sn); |
| 1045 | } |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1046 | |
Tai-hwa Liang | d3132c5 | 2012-05-07 08:45:58 -0700 | [diff] [blame] | 1047 | psmouse_info(psmouse, |
| 1048 | "Finger Sensing Pad, hw: %d.%d.%d, sn: %x, sw: %s\n", |
| 1049 | ver >> 4, ver & 0x0F, rev, sn, fsp_drv_ver); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1050 | |
| 1051 | psmouse->private = priv = kzalloc(sizeof(struct fsp_data), GFP_KERNEL); |
| 1052 | if (!priv) |
| 1053 | return -ENOMEM; |
| 1054 | |
| 1055 | priv->ver = ver; |
| 1056 | priv->rev = rev; |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1057 | |
| 1058 | psmouse->protocol_handler = fsp_process_byte; |
| 1059 | psmouse->disconnect = fsp_disconnect; |
| 1060 | psmouse->reconnect = fsp_reconnect; |
| 1061 | psmouse->cleanup = fsp_reset; |
| 1062 | psmouse->pktsize = 4; |
| 1063 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1064 | error = fsp_activate_protocol(psmouse); |
| 1065 | if (error) |
| 1066 | goto err_out; |
| 1067 | |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 1068 | /* Set up various supported input event bits */ |
| 1069 | error = fsp_set_input_params(psmouse); |
| 1070 | if (error) |
| 1071 | goto err_out; |
| 1072 | |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1073 | error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj, |
| 1074 | &fsp_attribute_group); |
| 1075 | if (error) { |
Tai-hwa Liang | 3ac1780 | 2012-03-25 17:15:03 -0700 | [diff] [blame] | 1076 | psmouse_err(psmouse, |
| 1077 | "Failed to create sysfs attributes (%d)", error); |
Tai-hwa Liang | fc69f4a | 2009-05-10 18:15:39 -0700 | [diff] [blame] | 1078 | goto err_out; |
| 1079 | } |
| 1080 | |
| 1081 | return 0; |
| 1082 | |
| 1083 | err_out: |
| 1084 | kfree(psmouse->private); |
| 1085 | psmouse->private = NULL; |
| 1086 | return error; |
| 1087 | } |