Input: penmount - add PenMount 6000 support
Add support for PenMount 6000 touch controller. Signed-off-by: John Sung <penmount.touch@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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21ae508bab
commit
c42e2e406a
1 changed files with 57 additions and 8 deletions
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@ -33,7 +33,7 @@ MODULE_LICENSE("GPL");
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* Definitions & global arrays.
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*/
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#define PM_MAX_LENGTH 5
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#define PM_MAX_LENGTH 6
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/*
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* Per-touchscreen data.
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@ -45,8 +45,24 @@ struct pm {
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int idx;
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unsigned char data[PM_MAX_LENGTH];
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char phys[32];
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unsigned char packetsize;
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};
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/*
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* pm_checkpacket() checks if data packet is valid
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*/
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static bool pm_checkpacket(unsigned char *packet)
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{
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int total = 0;
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int i;
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for (i = 0; i < 5; i++)
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total += packet[i];
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return packet[5] == (unsigned char)~(total & 0xff);
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}
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static irqreturn_t pm_interrupt(struct serio *serio,
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unsigned char data, unsigned int flags)
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{
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@ -55,14 +71,34 @@ static irqreturn_t pm_interrupt(struct serio *serio,
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pm->data[pm->idx] = data;
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if (pm->data[0] & 0x80) {
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if (PM_MAX_LENGTH == ++pm->idx) {
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input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
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input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
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input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
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input_sync(dev);
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pm->idx = 0;
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switch (pm->dev->id.product) {
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case 0x9000:
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if (pm->data[0] & 0x80) {
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if (pm->packetsize == ++pm->idx) {
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input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
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input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
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input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
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input_sync(dev);
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pm->idx = 0;
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}
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}
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break;
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case 0x6000:
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if ((pm->data[0] & 0xbf) == 0x30) {
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if (pm->packetsize == ++pm->idx) {
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if (pm_checkpacket(pm->data)) {
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input_report_abs(dev, ABS_X,
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pm->data[2] * 256 + pm->data[1]);
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input_report_abs(dev, ABS_Y,
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pm->data[4] * 256 + pm->data[3]);
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input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
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input_sync(dev);
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}
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pm->idx = 0;
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}
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}
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break;
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}
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return IRQ_HANDLED;
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@ -120,6 +156,19 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
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input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
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input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
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switch (serio->id.id) {
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default:
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case 0:
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pm->packetsize = 5;
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input_dev->id.product = 0x9000;
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break;
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case 1:
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pm->packetsize = 6;
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input_dev->id.product = 0x6000;
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break;
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}
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serio_set_drvdata(serio, pm);
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err = serio_open(serio, drv);
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