Input: lifebook - activate 6-byte protocol on select models
It appears that if we turn on 6-byte Lifebook protocol on Panasonic CF-28 its touchpad is left alone and generates standard 3-byte PS/2 data stream with relative packets instead of being converted in 3-byte Lifebook protocol with absolute coordinates - in other words what get what we need to distinguish between touchscreen and touchpad. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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@ -28,6 +28,14 @@ static int lifebook_set_serio_phys(struct dmi_system_id *d)
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return 0;
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}
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static unsigned char lifebook_use_6byte_proto;
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static int lifebook_set_6byte_proto(struct dmi_system_id *d)
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{
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lifebook_use_6byte_proto = 1;
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return 0;
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}
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static struct dmi_system_id lifebook_dmi_table[] = {
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{
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.ident = "FLORA-ie 55mi",
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@ -67,6 +75,14 @@ static struct dmi_system_id lifebook_dmi_table[] = {
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.callback = lifebook_set_serio_phys,
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.driver_data = "isa0060/serio3",
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},
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{
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.ident = "Panasonic CF-28",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
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DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
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},
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.callback = lifebook_set_6byte_proto,
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},
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{
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.ident = "Lifebook B142",
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.matches = {
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@ -78,23 +94,53 @@ static struct dmi_system_id lifebook_dmi_table[] = {
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static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
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{
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = psmouse->dev;
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unsigned char *packet = psmouse->packet;
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int relative_packet = packet[0] & 0x08;
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if (psmouse->pktcnt != 3)
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return PSMOUSE_GOOD_DATA;
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/* calculate X and Y */
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if ((packet[0] & 0x08) == 0x00) {
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input_report_abs(dev, ABS_X,
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(packet[1] | ((packet[0] & 0x30) << 4)));
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input_report_abs(dev, ABS_Y,
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1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
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if (relative_packet || !lifebook_use_6byte_proto) {
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if (psmouse->pktcnt != 3)
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return PSMOUSE_GOOD_DATA;
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} else {
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switch (psmouse->pktcnt) {
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case 1:
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return (packet[0] & 0xf8) == 0x00 ?
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PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
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case 2:
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return PSMOUSE_GOOD_DATA;
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case 3:
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return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ?
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PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
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case 4:
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return (packet[3] & 0xf8) == 0xc0 ?
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PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
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case 5:
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return (packet[4] & 0xc0) == (packet[2] & 0xc0) ?
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PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
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case 6:
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if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0))
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return PSMOUSE_BAD_DATA;
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if ((packet[5] & 0xc0) != (packet[1] & 0xc0))
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return PSMOUSE_BAD_DATA;
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break; /* report data */
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}
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}
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if (relative_packet) {
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input_report_rel(dev, REL_X,
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((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
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input_report_rel(dev, REL_Y,
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-(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
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} else if (lifebook_use_6byte_proto) {
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input_report_abs(dev, ABS_X,
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((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f));
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input_report_abs(dev, ABS_Y,
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4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f)));
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} else {
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input_report_abs(dev, ABS_X,
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(packet[1] | ((packet[0] & 0x30) << 4)));
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input_report_abs(dev, ABS_Y,
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1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
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}
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input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
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@ -119,7 +165,7 @@ static int lifebook_absolute_mode(struct psmouse *psmouse)
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you leave this call out the touchsreen will never send
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absolute coordinates
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*/
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param = 0x07;
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param = lifebook_use_6byte_proto ? 0x08 : 0x07;
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ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
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return 0;
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@ -163,6 +209,7 @@ int lifebook_detect(struct psmouse *psmouse, int set_properties)
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int lifebook_init(struct psmouse *psmouse)
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{
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struct input_dev *input_dev = psmouse->dev;
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int max_coord = lifebook_use_6byte_proto ? 1024 : 4096;
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if (lifebook_absolute_mode(psmouse))
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return -1;
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@ -171,13 +218,18 @@ int lifebook_init(struct psmouse *psmouse)
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input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
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input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
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input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
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input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0);
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input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0);
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input_set_abs_params(input_dev, ABS_X, 0, max_coord, 0, 0);
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input_set_abs_params(input_dev, ABS_Y, 0, max_coord, 0, 0);
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psmouse->protocol_handler = lifebook_process_byte;
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psmouse->set_resolution = lifebook_set_resolution;
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psmouse->disconnect = lifebook_disconnect;
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psmouse->reconnect = lifebook_absolute_mode;
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/*
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* Use packet size = 3 even when using 6-byte protocol because
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* that's what POLL will return on Lifebooks (according to spec).
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*/
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psmouse->pktsize = 3;
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return 0;
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