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author | Grant Likely <grant.likely@secretlab.ca> | 2010-05-25 08:38:26 +0200 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-05-25 08:38:26 +0200 |
commit | b1e50ebcf24668e57f058deb48b0704b5391ed0f (patch) | |
tree | 17e1b69b249d0738317b732186340c9dd053f1a1 /drivers/input/mouse/synaptics.c | |
parent | spi/davinci: Fix clock prescale factor computation (diff) | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6 (diff) | |
download | linux-b1e50ebcf24668e57f058deb48b0704b5391ed0f.tar.xz linux-b1e50ebcf24668e57f058deb48b0704b5391ed0f.zip |
Merge remote branch 'origin' into secretlab/next-spi
Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r-- | drivers/input/mouse/synaptics.c | 53 |
1 files changed, 34 insertions, 19 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index ebd7a99efeae..40cea334ad13 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -36,6 +36,8 @@ * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, * section 2.3.2, which says that they should be valid regardless of the * actual size of the sensor. + * Note that newer firmware allows querying device for maximum useable + * coordinates. */ #define XMIN_NOMINAL 1472 #define XMAX_NOMINAL 5472 @@ -194,23 +196,33 @@ static int synaptics_identify(struct psmouse *psmouse) } /* - * Read touchpad resolution + * Read touchpad resolution and maximum reported coordinates * Resolution is left zero if touchpad does not support the query */ static int synaptics_resolution(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; unsigned char res[3]; + unsigned char max[3]; if (SYN_ID_MAJOR(priv->identity) < 4) - return 0; - if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res)) - return 0; + if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res) == 0) { + if (res[0] != 0 && (res[1] & 0x80) && res[2] != 0) { + priv->x_res = res[0]; /* x resolution in units/mm */ + priv->y_res = res[2]; /* y resolution in units/mm */ + } + } - if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) { - priv->x_res = res[0]; /* x resolution in units/mm */ - priv->y_res = res[2]; /* y resolution in units/mm */ + if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && + SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { + if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_DIMENSIONS, max)) { + printk(KERN_ERR "Synaptics claims to have dimensions query," + " but I'm not able to read it.\n"); + } else { + priv->x_max = (max[0] << 5) | ((max[1] & 0x0f) << 1); + priv->y_max = (max[2] << 5) | ((max[1] & 0xf0) >> 3); + } } return 0; @@ -520,19 +532,20 @@ static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned cha return 0; switch (pkt_type) { - case SYN_NEWABS: - case SYN_NEWABS_RELAXED: - return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; - case SYN_NEWABS_STRICT: - return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; + case SYN_NEWABS: + case SYN_NEWABS_RELAXED: + return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; - case SYN_OLDABS: - return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; + case SYN_NEWABS_STRICT: + return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; - default: - printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); - return 0; + case SYN_OLDABS: + return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; + + default: + printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); + return 0; } } @@ -578,8 +591,10 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) int i; __set_bit(EV_ABS, dev->evbit); - input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); - input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); + input_set_abs_params(dev, ABS_X, + XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0); + input_set_abs_params(dev, ABS_Y, + YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0); input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); __set_bit(ABS_TOOL_WIDTH, dev->absbit); |