diff options
Diffstat (limited to 'drivers/input/mouse/elantech.c')
| -rw-r--r-- | drivers/input/mouse/elantech.c | 208 |
1 files changed, 189 insertions, 19 deletions
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 1ab1c14449d..9cfc70ae83f 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -108,6 +108,16 @@ static int elantech_read_reg(struct psmouse *psmouse, unsigned char reg, rc = -1; } break; + + case 3: + if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) || + elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) || + elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) || + elantech_ps2_command(psmouse, NULL, reg) || + elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) { + rc = -1; + } + break; } if (rc) @@ -154,6 +164,18 @@ static int elantech_write_reg(struct psmouse *psmouse, unsigned char reg, rc = -1; } break; + + case 3: + if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) || + elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) || + elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) || + elantech_ps2_command(psmouse, NULL, reg) || + elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) || + elantech_ps2_command(psmouse, NULL, val) || + elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) { + rc = -1; + } + break; } if (rc) @@ -350,6 +372,84 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) input_sync(dev); } +/* + * Interpret complete data packets and report absolute mode input events for + * hardware version 3. (12 byte packets for two fingers) + */ +static void elantech_report_absolute_v3(struct psmouse *psmouse, + int packet_type) +{ + struct input_dev *dev = psmouse->dev; + struct elantech_data *etd = psmouse->private; + unsigned char *packet = psmouse->packet; + unsigned int fingers = 0, x1 = 0, y1 = 0, x2 = 0, y2 = 0; + unsigned int width = 0, pres = 0; + + /* byte 0: n1 n0 . . . . R L */ + fingers = (packet[0] & 0xc0) >> 6; + + switch (fingers) { + case 3: + case 1: + /* + * byte 1: . . . . x11 x10 x9 x8 + * byte 2: x7 x6 x5 x4 x4 x2 x1 x0 + */ + x1 = ((packet[1] & 0x0f) << 8) | packet[2]; + /* + * byte 4: . . . . y11 y10 y9 y8 + * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 + */ + y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + break; + + case 2: + if (packet_type == PACKET_V3_HEAD) { + /* + * byte 1: . . . . ax11 ax10 ax9 ax8 + * byte 2: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0 + */ + etd->prev_x = ((packet[1] & 0x0f) << 8) | packet[2]; + /* + * byte 4: . . . . ay11 ay10 ay9 ay8 + * byte 5: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 + */ + etd->prev_y = etd->y_max - + (((packet[4] & 0x0f) << 8) | packet[5]); + /* + * wait for next packet + */ + return; + } + + /* packet_type == PACKET_V3_TAIL */ + x1 = etd->prev_x; + y1 = etd->prev_y; + x2 = ((packet[1] & 0x0f) << 8) | packet[2]; + y2 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + break; + } + + pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4); + width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4); + + input_report_key(dev, BTN_TOUCH, fingers != 0); + if (fingers != 0) { + input_report_abs(dev, ABS_X, x1); + input_report_abs(dev, ABS_Y, y1); + } + elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); + input_report_key(dev, BTN_TOOL_FINGER, fingers == 1); + input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2); + input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3); + input_report_key(dev, BTN_LEFT, packet[0] & 0x01); + input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); + input_report_abs(dev, ABS_PRESSURE, pres); + input_report_abs(dev, ABS_TOOL_WIDTH, width); + + input_sync(dev); +} + static int elantech_packet_check_v1(struct psmouse *psmouse) { struct elantech_data *etd = psmouse->private; @@ -403,11 +503,37 @@ static int elantech_packet_check_v2(struct psmouse *psmouse) } /* + * We check the constant bits to determine what packet type we get, + * so packet checking is mandatory for v3 hardware. + */ +static int elantech_packet_check_v3(struct psmouse *psmouse) +{ + const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff }; + unsigned char *packet = psmouse->packet; + + /* + * check debounce first, it has the same signature in byte 0 + * and byte 3 as PACKET_V3_HEAD. + */ + if (!memcmp(packet, debounce_packet, sizeof(debounce_packet))) + return PACKET_DEBOUNCE; + + if ((packet[0] & 0x0c) == 0x04 && (packet[3] & 0xcf) == 0x02) + return PACKET_V3_HEAD; + + if ((packet[0] & 0x0c) == 0x0c && (packet[3] & 0xce) == 0x0c) + return PACKET_V3_TAIL; + + return PACKET_UNKNOWN; +} + +/* * Process byte stream from mouse and handle complete packets */ static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse) { struct elantech_data *etd = psmouse->private; + int packet_type; if (psmouse->pktcnt < psmouse->pktsize) return PSMOUSE_GOOD_DATA; @@ -429,6 +555,18 @@ static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse) elantech_report_absolute_v2(psmouse); break; + + case 3: + packet_type = elantech_packet_check_v3(psmouse); + /* ignore debounce */ + if (packet_type == PACKET_DEBOUNCE) + return PSMOUSE_FULL_PACKET; + + if (packet_type == PACKET_UNKNOWN) + return PSMOUSE_BAD_DATA; + + elantech_report_absolute_v3(psmouse, packet_type); + break; } return PSMOUSE_FULL_PACKET; @@ -463,8 +601,15 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) elantech_write_reg(psmouse, 0x11, etd->reg_11) || elantech_write_reg(psmouse, 0x21, etd->reg_21)) { rc = -1; - break; } + break; + + case 3: + etd->reg_10 = 0x0b; + if (elantech_write_reg(psmouse, 0x10, etd->reg_10)) + rc = -1; + + break; } if (rc == 0) { @@ -498,11 +643,12 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) return rc; } -static void elantech_set_range(struct psmouse *psmouse, - unsigned int *x_min, unsigned int *y_min, - unsigned int *x_max, unsigned int *y_max) +static int elantech_set_range(struct psmouse *psmouse, + unsigned int *x_min, unsigned int *y_min, + unsigned int *x_max, unsigned int *y_max) { struct elantech_data *etd = psmouse->private; + unsigned char param[3]; int i; switch (etd->hw_version) { @@ -530,19 +676,30 @@ static void elantech_set_range(struct psmouse *psmouse, *y_max = (etd->capabilities[2] - i) * 64; } break; + + case 3: + if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param)) + return -1; + + *x_max = (0x0f & param[0]) << 8 | param[1]; + *y_max = (0xf0 & param[0]) << 4 | param[2]; + break; } + + return 0; } /* * Set the appropriate event bits for the input subsystem */ -static void elantech_set_input_params(struct psmouse *psmouse) +static int elantech_set_input_params(struct psmouse *psmouse) { struct input_dev *dev = psmouse->dev; struct elantech_data *etd = psmouse->private; unsigned int x_min = 0, y_min = 0, x_max = 0, y_max = 0; - elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max); + if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max)) + return -1; __set_bit(EV_KEY, dev->evbit); __set_bit(EV_ABS, dev->evbit); @@ -570,6 +727,9 @@ static void elantech_set_input_params(struct psmouse *psmouse) case 2: __set_bit(BTN_TOOL_QUADTAP, dev->keybit); + __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); + /* fall through */ + case 3: input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0); input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0); if (etd->reports_pressure) { @@ -578,7 +738,6 @@ static void elantech_set_input_params(struct psmouse *psmouse) input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2, ETP_WMAX_V2, 0, 0); } - __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); input_mt_init_slots(dev, 2); input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0); @@ -586,6 +745,8 @@ static void elantech_set_input_params(struct psmouse *psmouse) } etd->y_max = y_max; + + return 0; } struct elantech_attr_data { @@ -727,7 +888,8 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties) * Report this in case there are Elantech models that use a different * set of magic numbers */ - if (param[0] != 0x3c || param[1] != 0x03 || param[2] != 0xc8) { + if (param[0] != 0x3c || param[1] != 0x03 || + (param[2] != 0xc8 && param[2] != 0x00)) { pr_debug("unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n", param[0], param[1], param[2]); return -1; @@ -793,16 +955,16 @@ static int elantech_reconnect(struct psmouse *psmouse) /* * determine hardware version and set some properties according to it. */ -static void elantech_set_properties(struct elantech_data *etd) +static int elantech_set_properties(struct elantech_data *etd) { - /* - * Assume every version greater than 0x020030 is new EeePC style - * hardware with 6 byte packets, except 0x020600 - */ if (etd->fw_version < 0x020030 || etd->fw_version == 0x020600) etd->hw_version = 1; - else + else if (etd->fw_version < 0x150600) etd->hw_version = 2; + else if ((etd->fw_version & 0x0f0000) >> 16 == 5) + etd->hw_version = 3; + else + return -1; /* * Turn on packet checking by default. @@ -817,13 +979,15 @@ static void elantech_set_properties(struct elantech_data *etd) etd->jumpy_cursor = (etd->fw_version == 0x020022 || etd->fw_version == 0x020600); - if (etd->hw_version == 2) { + if (etd->hw_version > 1) { /* For now show extra debug information */ etd->debug = 1; if (etd->fw_version >= 0x020800) etd->reports_pressure = true; } + + return 0; } /* @@ -850,9 +1014,12 @@ int elantech_init(struct psmouse *psmouse) pr_err("failed to query firmware version.\n"); goto init_fail; } - etd->fw_version = (param[0] << 16) | (param[1] << 8) | param[2]; - elantech_set_properties(etd); + + if (elantech_set_properties(etd)) { + pr_err("unknown hardware version, aborting...\n"); + goto init_fail; + } pr_info("assuming hardware version %d " "(with firmware version 0x%02x%02x%02x)\n", etd->hw_version, param[0], param[1], param[2]); @@ -871,7 +1038,10 @@ int elantech_init(struct psmouse *psmouse) goto init_fail; } - elantech_set_input_params(psmouse); + if (elantech_set_input_params(psmouse)) { + pr_err("failed to query touchpad range.\n"); + goto init_fail; + } error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj, &elantech_attr_group); @@ -883,7 +1053,7 @@ int elantech_init(struct psmouse *psmouse) psmouse->protocol_handler = elantech_process_byte; psmouse->disconnect = elantech_disconnect; psmouse->reconnect = elantech_reconnect; - psmouse->pktsize = etd->hw_version == 2 ? 6 : 4; + psmouse->pktsize = etd->hw_version > 1 ? 6 : 4; return 0; |