Input: ALPS - add support for SS4 touchpad devices
This change adds support for SS4 touchpad devices as ALPS_PROTO_V8 protocol. They are real multi-touch devices and can be found in TOSHIBA Tecra C50. Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Masaki Ota
Dmitry Torokhov
Родитель
8eccd39340
Коммит
3db5b9f782
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@ -153,12 +153,18 @@ static const struct alps_protocol_info alps_v7_protocol_data = {
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ALPS_PROTO_V7, 0x48, 0x48, ALPS_DUALPOINT
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};
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static const struct alps_protocol_info alps_v8_protocol_data = {
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ALPS_PROTO_V8, 0x18, 0x18, 0
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};
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static void alps_set_abs_params_st(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_mt(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_v7(struct alps_data *priv,
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struct input_dev *dev1);
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static void alps_set_abs_params_ss4_v2(struct alps_data *priv,
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struct input_dev *dev1);
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/* Packet formats are described in Documentation/input/alps.txt */
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@ -1087,6 +1093,176 @@ static void alps_process_packet_v7(struct psmouse *psmouse)
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alps_process_touchpad_packet_v7(psmouse);
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}
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unsigned char alps_get_pkt_id_ss4_v2(unsigned char *byte)
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{
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unsigned char pkt_id = SS4_PACKET_ID_IDLE;
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if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 &&
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(byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && byte[5] == 0x00) {
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pkt_id = SS4_PACKET_ID_IDLE;
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} else if (!(byte[3] & 0x10)) {
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pkt_id = SS4_PACKET_ID_ONE;
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} else if (!(byte[3] & 0x20)) {
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pkt_id = SS4_PACKET_ID_TWO;
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} else {
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pkt_id = SS4_PACKET_ID_MULTI;
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}
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return pkt_id;
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}
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static int alps_decode_ss4_v2(struct alps_fields *f,
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unsigned char *p, struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char pkt_id;
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unsigned int no_data_x, no_data_y;
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pkt_id = alps_get_pkt_id_ss4_v2(p);
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/* Current packet is 1Finger coordinate packet */
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switch (pkt_id) {
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case SS4_PACKET_ID_ONE:
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f->mt[0].x = SS4_1F_X_V2(p);
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f->mt[0].y = SS4_1F_Y_V2(p);
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f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f;
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f->fingers = 1;
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f->first_mp = 0;
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f->is_mp = 0;
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break;
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case SS4_PACKET_ID_TWO:
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if (priv->flags & ALPS_BUTTONPAD) {
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f->mt[0].x = SS4_BTL_MF_X_V2(p, 0);
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f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0);
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f->mt[1].x = SS4_BTL_MF_X_V2(p, 1);
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f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1);
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} else {
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f->mt[0].x = SS4_STD_MF_X_V2(p, 0);
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f->mt[0].y = SS4_STD_MF_Y_V2(p, 0);
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f->mt[1].x = SS4_STD_MF_X_V2(p, 1);
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f->mt[1].y = SS4_STD_MF_Y_V2(p, 1);
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}
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f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0;
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if (SS4_IS_MF_CONTINUE(p)) {
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f->first_mp = 1;
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} else {
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f->fingers = 2;
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f->first_mp = 0;
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}
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f->is_mp = 0;
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break;
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case SS4_PACKET_ID_MULTI:
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if (priv->flags & ALPS_BUTTONPAD) {
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f->mt[2].x = SS4_BTL_MF_X_V2(p, 0);
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f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0);
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f->mt[3].x = SS4_BTL_MF_X_V2(p, 1);
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f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1);
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no_data_x = SS4_MFPACKET_NO_AX_BL;
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no_data_y = SS4_MFPACKET_NO_AY_BL;
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} else {
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f->mt[2].x = SS4_STD_MF_X_V2(p, 0);
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f->mt[2].y = SS4_STD_MF_Y_V2(p, 0);
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f->mt[3].x = SS4_STD_MF_X_V2(p, 1);
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f->mt[3].y = SS4_STD_MF_Y_V2(p, 1);
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no_data_x = SS4_MFPACKET_NO_AX;
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no_data_y = SS4_MFPACKET_NO_AY;
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}
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f->first_mp = 0;
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f->is_mp = 1;
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if (SS4_IS_5F_DETECTED(p)) {
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f->fingers = 5;
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} else if (f->mt[3].x == no_data_x &&
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f->mt[3].y == no_data_y) {
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f->mt[3].x = 0;
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f->mt[3].y = 0;
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f->fingers = 3;
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} else {
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f->fingers = 4;
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}
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break;
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case SS4_PACKET_ID_IDLE:
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default:
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memset(f, 0, sizeof(struct alps_fields));
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break;
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}
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f->left = !!(SS4_BTN_V2(p) & 0x01);
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if (!(priv->flags & ALPS_BUTTONPAD)) {
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f->right = !!(SS4_BTN_V2(p) & 0x02);
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f->middle = !!(SS4_BTN_V2(p) & 0x04);
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}
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return 0;
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}
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static void alps_process_packet_ss4_v2(struct psmouse *psmouse)
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{
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struct alps_data *priv = psmouse->private;
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unsigned char *packet = psmouse->packet;
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struct input_dev *dev = psmouse->dev;
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struct alps_fields *f = &priv->f;
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memset(f, 0, sizeof(struct alps_fields));
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priv->decode_fields(f, packet, psmouse);
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if (priv->multi_packet) {
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/*
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* Sometimes the first packet will indicate a multi-packet
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* sequence, but sometimes the next multi-packet would not
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* come. Check for this, and when it happens process the
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* position packet as usual.
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*/
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if (f->is_mp) {
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/* Now process the 1st packet */
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priv->decode_fields(f, priv->multi_data, psmouse);
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} else {
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priv->multi_packet = 0;
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}
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}
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/*
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* "f.is_mp" would always be '0' after merging the 1st and 2nd packet.
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* When it is set, it means 2nd packet comes without 1st packet come.
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*/
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if (f->is_mp)
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return;
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/* Save the first packet */
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if (!priv->multi_packet && f->first_mp) {
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priv->multi_packet = 1;
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memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
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return;
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}
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priv->multi_packet = 0;
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alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4);
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input_mt_report_finger_count(dev, f->fingers);
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input_report_key(dev, BTN_LEFT, f->left);
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input_report_key(dev, BTN_RIGHT, f->right);
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input_report_key(dev, BTN_MIDDLE, f->middle);
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input_report_abs(dev, ABS_PRESSURE, f->pressure);
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input_sync(dev);
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}
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static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse)
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{
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if (psmouse->pktcnt == 4 && ((psmouse->packet[3] & 0x08) != 0x08))
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return false;
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if (psmouse->pktcnt == 6 && ((psmouse->packet[5] & 0x10) != 0x0))
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return false;
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return true;
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}
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static DEFINE_MUTEX(alps_mutex);
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static void alps_register_bare_ps2_mouse(struct work_struct *work)
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@ -1307,8 +1483,12 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
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* a device connected to the external PS/2 port. Because bare PS/2
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* protocol does not have enough constant bits to self-synchronize
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* properly we only do this if the device is fully synchronized.
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* Can not distinguish V8's first byte from PS/2 packet's
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*/
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if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) {
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if (priv->proto_version != ALPS_PROTO_V8 &&
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!psmouse->out_of_sync_cnt &&
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(psmouse->packet[0] & 0xc8) == 0x08) {
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if (psmouse->pktcnt == 3) {
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alps_report_bare_ps2_packet(psmouse, psmouse->packet,
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true);
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@ -1356,8 +1536,10 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
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return PSMOUSE_BAD_DATA;
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}
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if (priv->proto_version == ALPS_PROTO_V7 &&
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!alps_is_valid_package_v7(psmouse)) {
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if ((priv->proto_version == ALPS_PROTO_V7 &&
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!alps_is_valid_package_v7(psmouse)) ||
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(priv->proto_version == ALPS_PROTO_V8 &&
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!alps_is_valid_package_ss4_v2(psmouse))) {
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psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
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psmouse->pktcnt - 1,
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psmouse->packet[psmouse->pktcnt - 1]);
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@ -2132,6 +2314,88 @@ error:
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return -1;
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}
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static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse,
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unsigned char index, unsigned char otp[])
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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switch (index) {
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case 0:
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if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
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ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO))
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return -1;
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break;
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case 1:
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if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) ||
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ps2_command(ps2dev, otp, PSMOUSE_CMD_GETINFO))
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return -1;
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break;
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}
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return 0;
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}
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int alps_update_device_area_ss4_v2(unsigned char otp[][4],
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struct alps_data *priv)
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{
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int num_x_electrode;
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int num_y_electrode;
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int x_pitch, y_pitch, x_phys, y_phys;
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num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
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num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
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priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
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priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
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x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
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y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
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x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
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y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
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priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */
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priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */
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return 0;
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}
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int alps_update_btn_info_ss4_v2(unsigned char otp[][4], struct alps_data *priv)
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{
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unsigned char is_btnless;
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is_btnless = (otp[1][1] >> 3) & 0x01;
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if (is_btnless)
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priv->flags |= ALPS_BUTTONPAD;
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return 0;
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}
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static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
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struct alps_data *priv)
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{
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unsigned char otp[2][4];
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memset(otp, 0, sizeof(otp));
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if (alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0]) ||
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alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]))
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return -1;
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alps_update_device_area_ss4_v2(otp, priv);
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alps_update_btn_info_ss4_v2(otp, priv);
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return 0;
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}
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static int alps_dolphin_get_device_area(struct psmouse *psmouse,
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struct alps_data *priv)
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{
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@ -2224,6 +2488,35 @@ error:
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return ret;
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}
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static int alps_hw_init_ss4_v2(struct psmouse *psmouse)
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{
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struct ps2dev *ps2dev = &psmouse->ps2dev;
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char param[2] = {0x64, 0x28};
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int ret = -1;
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/* enter absolute mode */
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if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
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ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
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ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) ||
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ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) {
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goto error;
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}
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/* T.B.D. Decread noise packet number, delete in the future */
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if (alps_exit_command_mode(psmouse) ||
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alps_enter_command_mode(psmouse) ||
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alps_command_mode_write_reg(psmouse, 0x001D, 0x20)) {
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goto error;
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}
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alps_exit_command_mode(psmouse);
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return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
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error:
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alps_exit_command_mode(psmouse);
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return ret;
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}
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static int alps_set_protocol(struct psmouse *psmouse,
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struct alps_data *priv,
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const struct alps_protocol_info *protocol)
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@ -2323,6 +2616,19 @@ static int alps_set_protocol(struct psmouse *psmouse,
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priv->flags |= ALPS_BUTTONPAD;
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break;
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case ALPS_PROTO_V8:
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priv->hw_init = alps_hw_init_ss4_v2;
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priv->process_packet = alps_process_packet_ss4_v2;
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priv->decode_fields = alps_decode_ss4_v2;
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priv->set_abs_params = alps_set_abs_params_ss4_v2;
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priv->nibble_commands = alps_v3_nibble_commands;
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priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
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if (alps_set_defaults_ss4_v2(psmouse, priv))
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return -EIO;
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break;
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}
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return 0;
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@ -2391,6 +2697,9 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
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} else if (ec[0] == 0x88 && ec[1] == 0x07 &&
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ec[2] >= 0x90 && ec[2] <= 0x9d) {
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protocol = &alps_v3_protocol_data;
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} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
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e7[2] == 0x14 && ec[1] == 0x02) {
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protocol = &alps_v8_protocol_data;
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} else {
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psmouse_dbg(psmouse,
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"Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);
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@ -2471,6 +2780,20 @@ static void alps_set_abs_params_v7(struct alps_data *priv,
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{
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alps_set_abs_params_mt_common(priv, dev1);
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input_mt_init_slots(dev1, MAX_TOUCHES,
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INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
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INPUT_MT_TRACK);
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set_bit(BTN_TOOL_QUINTTAP, dev1->keybit);
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}
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static void alps_set_abs_params_ss4_v2(struct alps_data *priv,
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struct input_dev *dev1)
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{
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alps_set_abs_params_mt_common(priv, dev1);
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input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
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set_bit(BTN_TOOL_QUINTTAP, dev1->keybit);
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input_mt_init_slots(dev1, MAX_TOUCHES,
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INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
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INPUT_MT_TRACK);
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@ -22,13 +22,89 @@
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#define ALPS_PROTO_V5 0x500
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#define ALPS_PROTO_V6 0x600
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#define ALPS_PROTO_V7 0x700 /* t3btl t4s */
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#define ALPS_PROTO_V8 0x800 /* SS4btl SS4s */
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||||
|
||||
#define MAX_TOUCHES 2
|
||||
#define MAX_TOUCHES 4
|
||||
|
||||
#define DOLPHIN_COUNT_PER_ELECTRODE 64
|
||||
#define DOLPHIN_PROFILE_XOFFSET 8 /* x-electrode offset */
|
||||
#define DOLPHIN_PROFILE_YOFFSET 1 /* y-electrode offset */
|
||||
|
||||
/*
|
||||
* enum SS4_PACKET_ID - defines the packet type for V8
|
||||
* SS4_PACKET_ID_IDLE: There's no finger and no button activity.
|
||||
* SS4_PACKET_ID_ONE: There's one finger on touchpad
|
||||
* or there's button activities.
|
||||
* SS4_PACKET_ID_TWO: There's two or more fingers on touchpad
|
||||
* SS4_PACKET_ID_MULTI: There's three or more fingers on touchpad
|
||||
*/
|
||||
enum SS4_PACKET_ID {
|
||||
SS4_PACKET_ID_IDLE = 0,
|
||||
SS4_PACKET_ID_ONE,
|
||||
SS4_PACKET_ID_TWO,
|
||||
SS4_PACKET_ID_MULTI,
|
||||
};
|
||||
|
||||
#define SS4_COUNT_PER_ELECTRODE 256
|
||||
#define SS4_NUMSENSOR_XOFFSET 7
|
||||
#define SS4_NUMSENSOR_YOFFSET 7
|
||||
#define SS4_MIN_PITCH_MM 50
|
||||
|
||||
#define SS4_MASK_NORMAL_BUTTONS 0x07
|
||||
|
||||
#define SS4_1F_X_V2(_b) ((_b[0] & 0x0007) | \
|
||||
((_b[1] << 3) & 0x0078) | \
|
||||
((_b[1] << 2) & 0x0380) | \
|
||||
((_b[2] << 5) & 0x1C00) \
|
||||
)
|
||||
|
||||
#define SS4_1F_Y_V2(_b) (((_b[2]) & 0x000F) | \
|
||||
((_b[3] >> 2) & 0x0030) | \
|
||||
((_b[4] << 6) & 0x03C0) | \
|
||||
((_b[4] << 5) & 0x0C00) \
|
||||
)
|
||||
|
||||
#define SS4_1F_Z_V2(_b) (((_b[5]) & 0x0F) | \
|
||||
((_b[5] >> 1) & 0x70) | \
|
||||
((_b[4]) & 0x80) \
|
||||
)
|
||||
|
||||
#define SS4_1F_LFB_V2(_b) (((_b[2] >> 4) & 0x01) == 0x01)
|
||||
|
||||
#define SS4_MF_LF_V2(_b, _i) ((_b[1 + (_i) * 3] & 0x0004) == 0x0004)
|
||||
|
||||
#define SS4_BTN_V2(_b) ((_b[0] >> 5) & SS4_MASK_NORMAL_BUTTONS)
|
||||
|
||||
#define SS4_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3] << 5) & 0x00E0) | \
|
||||
((_b[1 + _i * 3] << 5) & 0x1F00) \
|
||||
)
|
||||
|
||||
#define SS4_STD_MF_Y_V2(_b, _i) (((_b[1 + (_i) * 3] << 3) & 0x0010) | \
|
||||
((_b[2 + (_i) * 3] << 5) & 0x01E0) | \
|
||||
((_b[2 + (_i) * 3] << 4) & 0x0E00) \
|
||||
)
|
||||
|
||||
#define SS4_BTL_MF_X_V2(_b, _i) (SS4_STD_MF_X_V2(_b, _i) | \
|
||||
((_b[0 + (_i) * 3] >> 3) & 0x0010) \
|
||||
)
|
||||
|
||||
#define SS4_BTL_MF_Y_V2(_b, _i) (SS4_STD_MF_Y_V2(_b, _i) | \
|
||||
((_b[0 + (_i) * 3] >> 3) & 0x0008) \
|
||||
)
|
||||
|
||||
#define SS4_MF_Z_V2(_b, _i) (((_b[1 + (_i) * 3]) & 0x0001) | \
|
||||
((_b[1 + (_i) * 3] >> 1) & 0x0002) \
|
||||
)
|
||||
|
||||
#define SS4_IS_MF_CONTINUE(_b) ((_b[2] & 0x10) == 0x10)
|
||||
#define SS4_IS_5F_DETECTED(_b) ((_b[2] & 0x10) == 0x10)
|
||||
|
||||
|
||||
#define SS4_MFPACKET_NO_AX 8160 /* X-Coordinate value */
|
||||
#define SS4_MFPACKET_NO_AY 4080 /* Y-Coordinate value */
|
||||
#define SS4_MFPACKET_NO_AX_BL 8176 /* Buttonless X-Coordinate value */
|
||||
#define SS4_MFPACKET_NO_AY_BL 4088 /* Buttonless Y-Coordinate value */
|
||||
|
||||
/*
|
||||
* enum V7_PACKET_ID - defines the packet type for V7
|
||||
* V7_PACKET_ID_IDLE: There's no finger and no button activity.
|
||||
|
|
|
|||
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