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Date: Tue, 14 Jul 2009 00:07:26 +0200
From: Pavel Machek <pavel@....cz>
To: Brian Swetland <swetland@...gle.com>
Cc: kernel list <linux-kernel@...r.kernel.org>
Subject: Re: HTC: touchscreen driver
On Mon 2009-07-13 22:57:49, Pavel Machek wrote:
> Hi!
>
> I'm looking at synaptic touchscreen driver... who should be listed as
> an author?
>
> Changes I have so far are...
>
> checkpatch only has minor complains -- lines over 80 characters -- but
> the code is _way_ too deeply nested with way too little functions.
Here's better cleanup. But... some functions are still _way_ too big.
Signed-off-by: Pavel Machek <pavel@....cz>
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 339083e..fa3404f 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -94,6 +94,9 @@ config TOUCHSCREEN_GUNZE
config TOUCHSCREEN_ELAN_I2C_8232
tristate "Elan 8232 I2C touchscreen"
depends on I2C
+ help
+ This enables support for Elan over I2C based touchscreens.
+ Such touchscreen is used in HTC Dream.
config TOUCHSCREEN_ELO
tristate "Elo serial touchscreens"
@@ -215,6 +218,8 @@ config TOUCHSCREEN_SYNAPTICS_I2C_RMI
depends on I2C
help
This enables support for Synaptics RMI over I2C based touchscreens.
+ Such touchscreen is used in HTC Dream.
+
config TOUCHSCREEN_TOUCHRIGHT
tristate "Touchright serial touchscreen"
diff --git a/drivers/input/touchscreen/synaptics_i2c_rmi.c b/drivers/input/touchscreen/synaptics_i2c_rmi.c
index a45634b..f582582 100644
--- a/drivers/input/touchscreen/synaptics_i2c_rmi.c
+++ b/drivers/input/touchscreen/synaptics_i2c_rmi.c
@@ -1,4 +1,5 @@
-/* drivers/input/keyboard/synaptics_i2c_rmi.c
+/*
+ * Support for synaptics touchscreen.
*
* Copyright (C) 2007 Google, Inc.
*
@@ -15,7 +16,6 @@
#include <linux/module.h>
#include <linux/delay.h>
-#include <linux/earlysuspend.h>
#include <linux/hrtimer.h>
#include <linux/i2c.h>
#include <linux/input.h>
@@ -24,18 +24,16 @@
#include <linux/platform_device.h>
#include <linux/synaptics_i2c_rmi.h>
-#define swap(x, y) do { typeof(x) z = x; x = y; y = z; } while (0)
-
static struct workqueue_struct *synaptics_wq;
struct synaptics_ts_data {
- uint16_t addr;
+ u16 addr;
struct i2c_client *client;
struct input_dev *input_dev;
int use_irq;
struct hrtimer timer;
struct work_struct work;
- uint16_t max[2];
+ u16 max[2];
int snap_state[2][2];
int snap_down_on[2];
int snap_down_off[2];
@@ -43,164 +41,142 @@ struct synaptics_ts_data {
int snap_up_off[2];
int snap_down[2];
int snap_up[2];
- uint32_t flags;
+ u32 flags;
int (*power)(int on);
- struct early_suspend early_suspend;
};
-#ifdef CONFIG_HAS_EARLYSUSPEND
-static void synaptics_ts_early_suspend(struct early_suspend *h);
-static void synaptics_ts_late_resume(struct early_suspend *h);
-#endif
-
static int synaptics_init_panel(struct synaptics_ts_data *ts)
{
int ret;
- ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x10); /* page select = 0x10 */
+ /* page select = 0x10 */
+ ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x10);
if (ret < 0) {
- printk(KERN_ERR "i2c_smbus_write_byte_data failed for page select\n");
+ printk(KERN_ERR "smbus write failed for page select\n");
goto err_page_select_failed;
}
- ret = i2c_smbus_write_byte_data(ts->client, 0x41, 0x04); /* Set "No Clip Z" */
+
+ /* Set "No Clip Z" */
+ ret = i2c_smbus_write_byte_data(ts->client, 0x41, 0x04);
if (ret < 0)
- printk(KERN_ERR "i2c_smbus_write_byte_data failed for No Clip Z\n");
+ printk(KERN_ERR "smbus write failed for No Clip Z\n");
err_page_select_failed:
- ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x04); /* page select = 0x04 */
+ /* page select = 0x04 */
+ ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x04);
if (ret < 0)
- printk(KERN_ERR "i2c_smbus_write_byte_data failed for page select\n");
- ret = i2c_smbus_write_byte_data(ts->client, 0xf0, 0x81); /* normal operation, 80 reports per second */
+ printk(KERN_ERR "smbus write failed for page select\n");
+ /* normal operation, 80 reports per second */
+ ret = i2c_smbus_write_byte_data(ts->client, 0xf0, 0x81);
if (ret < 0)
- printk(KERN_ERR "synaptics_ts_resume: i2c_smbus_write_byte_data failed\n");
+ printk(KERN_ERR "smbus write failed for 80/second\n");
return ret;
}
+static void decode_report(struct synaptics_ts_data *ts, u8 *buf)
+{
+ int pos[2][2];
+ int f, a;
+ int base = 2;
+ int z = buf[1];
+ int w = buf[0] >> 4;
+ int finger = buf[0] & 7;
+ int finger2_pressed;
+
+ for (f = 0; f < 2; f++) {
+ u32 flip_flag = SYNAPTICS_FLIP_X;
+ for (a = 0; a < 2; a++) {
+ int p = buf[base + 1];
+ p |= (u16)(buf[base] & 0x1f) << 8;
+ if (ts->flags & flip_flag)
+ p = ts->max[a] - p;
+ if (ts->flags & SYNAPTICS_SNAP_TO_INACTIVE_EDGE) {
+ if (ts->snap_state[f][a]) {
+ if (p <= ts->snap_down_off[a])
+ p = ts->snap_down[a];
+ else if (p >= ts->snap_up_off[a])
+ p = ts->snap_up[a];
+ else
+ ts->snap_state[f][a] = 0;
+ } else {
+ if (p <= ts->snap_down_on[a]) {
+ p = ts->snap_down[a];
+ ts->snap_state[f][a] = 1;
+ } else if (p >= ts->snap_up_on[a]) {
+ p = ts->snap_up[a];
+ ts->snap_state[f][a] = 1;
+ }
+ }
+ }
+ pos[f][a] = p;
+ base += 2;
+ flip_flag <<= 1;
+ }
+ base += 2;
+ if (ts->flags & SYNAPTICS_SWAP_XY)
+ swap(pos[f][0], pos[f][1]);
+ }
+ if (z) {
+ input_report_abs(ts->input_dev, ABS_X, pos[0][0]);
+ input_report_abs(ts->input_dev, ABS_Y, pos[0][1]);
+ }
+ input_report_abs(ts->input_dev, ABS_PRESSURE, z);
+ input_report_abs(ts->input_dev, ABS_TOOL_WIDTH, w);
+ input_report_key(ts->input_dev, BTN_TOUCH, finger);
+ finger2_pressed = finger > 1 && finger != 7;
+ input_report_key(ts->input_dev, BTN_2, finger2_pressed);
+ if (finger2_pressed) {
+ input_report_abs(ts->input_dev, ABS_HAT0X, pos[1][0]);
+ input_report_abs(ts->input_dev, ABS_HAT0Y, pos[1][1]);
+ }
+ input_sync(ts->input_dev);
+}
+
static void synaptics_ts_work_func(struct work_struct *work)
{
int i;
int ret;
int bad_data = 0;
struct i2c_msg msg[2];
- uint8_t start_reg;
- uint8_t buf[15];
- struct synaptics_ts_data *ts = container_of(work, struct synaptics_ts_data, work);
+ u8 start_reg = 0;
+ u8 buf[15];
+ struct synaptics_ts_data *ts =
+ container_of(work, struct synaptics_ts_data, work);
msg[0].addr = ts->client->addr;
msg[0].flags = 0;
msg[0].len = 1;
msg[0].buf = &start_reg;
- start_reg = 0x00;
msg[1].addr = ts->client->addr;
msg[1].flags = I2C_M_RD;
msg[1].len = sizeof(buf);
msg[1].buf = buf;
- /* printk("synaptics_ts_work_func\n"); */
for (i = 0; i < ((ts->use_irq && !bad_data) ? 1 : 10); i++) {
ret = i2c_transfer(ts->client->adapter, msg, 2);
if (ret < 0) {
- printk(KERN_ERR "synaptics_ts_work_func: i2c_transfer failed\n");
+ printk(KERN_ERR "ts_work: i2c_transfer failed\n");
bad_data = 1;
- } else {
- /* printk("synaptics_ts_work_func: %x %x %x %x %x %x" */
- /* " %x %x %x %x %x %x %x %x %x, ret %d\n", */
- /* buf[0], buf[1], buf[2], buf[3], */
- /* buf[4], buf[5], buf[6], buf[7], */
- /* buf[8], buf[9], buf[10], buf[11], */
- /* buf[12], buf[13], buf[14], ret); */
- if ((buf[14] & 0xc0) != 0x40) {
- printk(KERN_WARNING "synaptics_ts_work_func:"
- " bad read %x %x %x %x %x %x %x %x %x"
- " %x %x %x %x %x %x, ret %d\n",
- buf[0], buf[1], buf[2], buf[3],
- buf[4], buf[5], buf[6], buf[7],
- buf[8], buf[9], buf[10], buf[11],
- buf[12], buf[13], buf[14], ret);
- if (bad_data)
- synaptics_init_panel(ts);
- bad_data = 1;
- continue;
- }
- bad_data = 0;
- if ((buf[14] & 1) == 0) {
- /* printk("read %d coordinates\n", i); */
- break;
- } else {
- int pos[2][2];
- int f, a;
- int base;
- /* int x = buf[3] | (uint16_t)(buf[2] & 0x1f) << 8; */
- /* int y = buf[5] | (uint16_t)(buf[4] & 0x1f) << 8; */
- int z = buf[1];
- int w = buf[0] >> 4;
- int finger = buf[0] & 7;
-
- /* int x2 = buf[3+6] | (uint16_t)(buf[2+6] & 0x1f) << 8; */
- /* int y2 = buf[5+6] | (uint16_t)(buf[4+6] & 0x1f) << 8; */
- /* int z2 = buf[1+6]; */
- /* int w2 = buf[0+6] >> 4; */
- /* int finger2 = buf[0+6] & 7; */
-
- /* int dx = (int8_t)buf[12]; */
- /* int dy = (int8_t)buf[13]; */
- int finger2_pressed;
-
- /* printk("x %4d, y %4d, z %3d, w %2d, F %d, 2nd: x %4d, y %4d, z %3d, w %2d, F %d, dx %4d, dy %4d\n", */
- /* x, y, z, w, finger, */
- /* x2, y2, z2, w2, finger2, */
- /* dx, dy); */
-
- base = 2;
- for (f = 0; f < 2; f++) {
- uint32_t flip_flag = SYNAPTICS_FLIP_X;
- for (a = 0; a < 2; a++) {
- int p = buf[base + 1];
- p |= (uint16_t)(buf[base] & 0x1f) << 8;
- if (ts->flags & flip_flag)
- p = ts->max[a] - p;
- if (ts->flags & SYNAPTICS_SNAP_TO_INACTIVE_EDGE) {
- if (ts->snap_state[f][a]) {
- if (p <= ts->snap_down_off[a])
- p = ts->snap_down[a];
- else if (p >= ts->snap_up_off[a])
- p = ts->snap_up[a];
- else
- ts->snap_state[f][a] = 0;
- } else {
- if (p <= ts->snap_down_on[a]) {
- p = ts->snap_down[a];
- ts->snap_state[f][a] = 1;
- } else if (p >= ts->snap_up_on[a]) {
- p = ts->snap_up[a];
- ts->snap_state[f][a] = 1;
- }
- }
- }
- pos[f][a] = p;
- base += 2;
- flip_flag <<= 1;
- }
- base += 2;
- if (ts->flags & SYNAPTICS_SWAP_XY)
- swap(pos[f][0], pos[f][1]);
- }
- if (z) {
- input_report_abs(ts->input_dev, ABS_X, pos[0][0]);
- input_report_abs(ts->input_dev, ABS_Y, pos[0][1]);
- }
- input_report_abs(ts->input_dev, ABS_PRESSURE, z);
- input_report_abs(ts->input_dev, ABS_TOOL_WIDTH, w);
- input_report_key(ts->input_dev, BTN_TOUCH, finger);
- finger2_pressed = finger > 1 && finger != 7;
- input_report_key(ts->input_dev, BTN_2, finger2_pressed);
- if (finger2_pressed) {
- input_report_abs(ts->input_dev, ABS_HAT0X, pos[1][0]);
- input_report_abs(ts->input_dev, ABS_HAT0Y, pos[1][1]);
- }
- input_sync(ts->input_dev);
- }
+ continue;
+ }
+ if ((buf[14] & 0xc0) != 0x40) {
+ printk(KERN_WARNING "synaptics_ts_work_func:"
+ " bad read %x %x %x %x %x %x %x %x %x"
+ " %x %x %x %x %x %x, ret %d\n",
+ buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6], buf[7],
+ buf[8], buf[9], buf[10], buf[11],
+ buf[12], buf[13], buf[14], ret);
+ if (bad_data)
+ synaptics_init_panel(ts);
+ bad_data = 1;
+ continue;
}
+ bad_data = 0;
+ if ((buf[14] & 1) == 0)
+ break;
+
+ decode_report(ts, buf);
}
if (ts->use_irq)
enable_irq(ts->client->irq);
@@ -208,8 +184,8 @@ static void synaptics_ts_work_func(struct work_struct *work)
static enum hrtimer_restart synaptics_ts_timer_func(struct hrtimer *timer)
{
- struct synaptics_ts_data *ts = container_of(timer, struct synaptics_ts_data, timer);
- /* printk("synaptics_ts_timer_func\n"); */
+ struct synaptics_ts_data *ts =
+ container_of(timer, struct synaptics_ts_data, timer);
queue_work(synaptics_wq, &ts->work);
@@ -221,36 +197,145 @@ static irqreturn_t synaptics_ts_irq_handler(int irq, void *dev_id)
{
struct synaptics_ts_data *ts = dev_id;
- /* printk("synaptics_ts_irq_handler\n"); */
disable_irq(ts->client->irq);
queue_work(synaptics_wq, &ts->work);
return IRQ_HANDLED;
}
+static int detect(struct synaptics_ts_data *ts, u32 *panel_version)
+{
+ int ret;
+ int retry = 10;
+
+ /* device command = reset */
+ ret = i2c_smbus_write_byte_data(ts->client, 0xf4, 0x01);
+ if (ret < 0) {
+ printk(KERN_ERR "i2c_smbus_write_byte_data failed\n");
+ /* fail? */
+ }
+
+ while (retry-- > 0) {
+ ret = i2c_smbus_read_byte_data(ts->client, 0xe4);
+ if (ret >= 0)
+ break;
+ msleep(100);
+ }
+ if (ret < 0) {
+ printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
+ return ret;
+ }
+
+ printk(KERN_INFO "synaptics_ts_probe: Product Major Version %x\n", ret);
+ *panel_version = ret << 8;
+ ret = i2c_smbus_read_byte_data(ts->client, 0xe5);
+ if (ret < 0) {
+ printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
+ return ret;
+ }
+ printk(KERN_INFO "synaptics_ts_probe: Product Minor Version %x\n", ret);
+ *panel_version |= ret;
+
+ ret = i2c_smbus_read_byte_data(ts->client, 0xe3);
+ if (ret < 0) {
+ printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
+ return ret;
+ }
+ printk(KERN_INFO "synaptics_ts_probe: product property %x\n", ret);
+ return 0;
+}
+
+static void compute_areas(struct synaptics_ts_data *ts,
+ struct synaptics_i2c_rmi_platform_data *pdata,
+ u16 max_x, u16 max_y)
+{
+ u32 inactive_area_left;
+ u32 inactive_area_right;
+ u32 inactive_area_top;
+ u32 inactive_area_bottom;
+ u32 snap_left_on;
+ u32 snap_left_off;
+ u32 snap_right_on;
+ u32 snap_right_off;
+ u32 snap_top_on;
+ u32 snap_top_off;
+ u32 snap_bottom_on;
+ u32 snap_bottom_off;
+ u32 fuzz_x;
+ u32 fuzz_y;
+ int fuzz_p;
+ int fuzz_w;
+
+ inactive_area_left = pdata->inactive_left;
+ inactive_area_right = pdata->inactive_right;
+ inactive_area_top = pdata->inactive_top;
+ inactive_area_bottom = pdata->inactive_bottom;
+ snap_left_on = pdata->snap_left_on;
+ snap_left_off = pdata->snap_left_off;
+ snap_right_on = pdata->snap_right_on;
+ snap_right_off = pdata->snap_right_off;
+ snap_top_on = pdata->snap_top_on;
+ snap_top_off = pdata->snap_top_off;
+ snap_bottom_on = pdata->snap_bottom_on;
+ snap_bottom_off = pdata->snap_bottom_off;
+ fuzz_x = pdata->fuzz_x;
+ fuzz_y = pdata->fuzz_y;
+ fuzz_p = pdata->fuzz_p;
+ fuzz_w = pdata->fuzz_w;
+
+ inactive_area_left = inactive_area_left * max_x / 0x10000;
+ inactive_area_right = inactive_area_right * max_x / 0x10000;
+ inactive_area_top = inactive_area_top * max_y / 0x10000;
+ inactive_area_bottom = inactive_area_bottom * max_y / 0x10000;
+ snap_left_on = snap_left_on * max_x / 0x10000;
+ snap_left_off = snap_left_off * max_x / 0x10000;
+ snap_right_on = snap_right_on * max_x / 0x10000;
+ snap_right_off = snap_right_off * max_x / 0x10000;
+ snap_top_on = snap_top_on * max_y / 0x10000;
+ snap_top_off = snap_top_off * max_y / 0x10000;
+ snap_bottom_on = snap_bottom_on * max_y / 0x10000;
+ snap_bottom_off = snap_bottom_off * max_y / 0x10000;
+ fuzz_x = fuzz_x * max_x / 0x10000;
+ fuzz_y = fuzz_y * max_y / 0x10000;
+
+ ts->snap_down[!!(ts->flags & SYNAPTICS_SWAP_XY)] = -inactive_area_left;
+ ts->snap_up[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x + inactive_area_right;
+ ts->snap_down[!(ts->flags & SYNAPTICS_SWAP_XY)] = -inactive_area_top;
+ ts->snap_up[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y + inactive_area_bottom;
+ ts->snap_down_on[!!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_left_on;
+ ts->snap_down_off[!!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_left_off;
+ ts->snap_up_on[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x - snap_right_on;
+ ts->snap_up_off[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x - snap_right_off;
+ ts->snap_down_on[!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_top_on;
+ ts->snap_down_off[!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_top_off;
+ ts->snap_up_on[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y - snap_bottom_on;
+ ts->snap_up_off[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y - snap_bottom_off;
+ printk(KERN_INFO "synaptics_ts_probe: max_x %d, max_y %d\n", max_x, max_y);
+ printk(KERN_INFO "synaptics_ts_probe: inactive_x %d %d, inactive_y %d %d\n",
+ inactive_area_left, inactive_area_right,
+ inactive_area_top, inactive_area_bottom);
+ printk(KERN_INFO "synaptics_ts_probe: snap_x %d-%d %d-%d, snap_y %d-%d %d-%d\n",
+ snap_left_on, snap_left_off, snap_right_on, snap_right_off,
+ snap_top_on, snap_top_off, snap_bottom_on, snap_bottom_off);
+
+ input_set_abs_params(ts->input_dev, ABS_X, -inactive_area_left, max_x + inactive_area_right, fuzz_x, 0);
+ input_set_abs_params(ts->input_dev, ABS_Y, -inactive_area_top, max_y + inactive_area_bottom, fuzz_y, 0);
+ input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 255, fuzz_p, 0);
+ input_set_abs_params(ts->input_dev, ABS_TOOL_WIDTH, 0, 15, fuzz_w, 0);
+ input_set_abs_params(ts->input_dev, ABS_HAT0X, -inactive_area_left, max_x + inactive_area_right, fuzz_x, 0);
+ input_set_abs_params(ts->input_dev, ABS_HAT0Y, -inactive_area_top, max_y + inactive_area_bottom, fuzz_y, 0);
+}
+
static int synaptics_ts_probe(
struct i2c_client *client, const struct i2c_device_id *id)
{
struct synaptics_ts_data *ts;
- uint8_t buf0[4];
- uint8_t buf1[8];
+ u8 buf0[4];
+ u8 buf1[8];
struct i2c_msg msg[2];
int ret = 0;
- uint16_t max_x, max_y;
- int fuzz_x, fuzz_y, fuzz_p, fuzz_w;
struct synaptics_i2c_rmi_platform_data *pdata;
- int inactive_area_left;
- int inactive_area_right;
- int inactive_area_top;
- int inactive_area_bottom;
- int snap_left_on;
- int snap_left_off;
- int snap_right_on;
- int snap_right_off;
- int snap_top_on;
- int snap_top_off;
- int snap_bottom_on;
- int snap_bottom_off;
- uint32_t panel_version;
+ u32 panel_version = 0;
+ u16 max_x, max_y;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
printk(KERN_ERR "synaptics_ts_probe: need I2C_FUNC_I2C\n");
@@ -269,6 +354,9 @@ static int synaptics_ts_probe(
pdata = client->dev.platform_data;
if (pdata)
ts->power = pdata->power;
+ else
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+
if (ts->power) {
ret = ts->power(1);
if (ret < 0) {
@@ -277,81 +365,16 @@ static int synaptics_ts_probe(
}
}
- ret = i2c_smbus_write_byte_data(ts->client, 0xf4, 0x01); /* device command = reset */
- if (ret < 0) {
- printk(KERN_ERR "i2c_smbus_write_byte_data failed\n");
- /* fail? */
- }
- {
- int retry = 10;
- while (retry-- > 0) {
- ret = i2c_smbus_read_byte_data(ts->client, 0xe4);
- if (ret >= 0)
- break;
- msleep(100);
- }
- }
- if (ret < 0) {
- printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
- goto err_detect_failed;
- }
- printk(KERN_INFO "synaptics_ts_probe: Product Major Version %x\n", ret);
- panel_version = ret << 8;
- ret = i2c_smbus_read_byte_data(ts->client, 0xe5);
- if (ret < 0) {
- printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
- goto err_detect_failed;
- }
- printk(KERN_INFO "synaptics_ts_probe: Product Minor Version %x\n", ret);
- panel_version |= ret;
-
- ret = i2c_smbus_read_byte_data(ts->client, 0xe3);
- if (ret < 0) {
- printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
+ ret = detect(ts, &panel_version);
+ if (ret)
goto err_detect_failed;
- }
- printk(KERN_INFO "synaptics_ts_probe: product property %x\n", ret);
- if (pdata) {
- while (pdata->version > panel_version)
- pdata++;
- ts->flags = pdata->flags;
- inactive_area_left = pdata->inactive_left;
- inactive_area_right = pdata->inactive_right;
- inactive_area_top = pdata->inactive_top;
- inactive_area_bottom = pdata->inactive_bottom;
- snap_left_on = pdata->snap_left_on;
- snap_left_off = pdata->snap_left_off;
- snap_right_on = pdata->snap_right_on;
- snap_right_off = pdata->snap_right_off;
- snap_top_on = pdata->snap_top_on;
- snap_top_off = pdata->snap_top_off;
- snap_bottom_on = pdata->snap_bottom_on;
- snap_bottom_off = pdata->snap_bottom_off;
- fuzz_x = pdata->fuzz_x;
- fuzz_y = pdata->fuzz_y;
- fuzz_p = pdata->fuzz_p;
- fuzz_w = pdata->fuzz_w;
- } else {
- inactive_area_left = 0;
- inactive_area_right = 0;
- inactive_area_top = 0;
- inactive_area_bottom = 0;
- snap_left_on = 0;
- snap_left_off = 0;
- snap_right_on = 0;
- snap_right_off = 0;
- snap_top_on = 0;
- snap_top_off = 0;
- snap_bottom_on = 0;
- snap_bottom_off = 0;
- fuzz_x = 0;
- fuzz_y = 0;
- fuzz_p = 0;
- fuzz_w = 0;
- }
+ while (pdata->version > panel_version)
+ pdata++;
+ ts->flags = pdata->flags;
ret = i2c_smbus_read_byte_data(ts->client, 0xf0);
+
if (ret < 0) {
printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
goto err_detect_failed;
@@ -427,46 +450,10 @@ static int synaptics_ts_probe(
set_bit(BTN_TOUCH, ts->input_dev->keybit);
set_bit(BTN_2, ts->input_dev->keybit);
set_bit(EV_ABS, ts->input_dev->evbit);
- inactive_area_left = inactive_area_left * max_x / 0x10000;
- inactive_area_right = inactive_area_right * max_x / 0x10000;
- inactive_area_top = inactive_area_top * max_y / 0x10000;
- inactive_area_bottom = inactive_area_bottom * max_y / 0x10000;
- snap_left_on = snap_left_on * max_x / 0x10000;
- snap_left_off = snap_left_off * max_x / 0x10000;
- snap_right_on = snap_right_on * max_x / 0x10000;
- snap_right_off = snap_right_off * max_x / 0x10000;
- snap_top_on = snap_top_on * max_y / 0x10000;
- snap_top_off = snap_top_off * max_y / 0x10000;
- snap_bottom_on = snap_bottom_on * max_y / 0x10000;
- snap_bottom_off = snap_bottom_off * max_y / 0x10000;
- fuzz_x = fuzz_x * max_x / 0x10000;
- fuzz_y = fuzz_y * max_y / 0x10000;
- ts->snap_down[!!(ts->flags & SYNAPTICS_SWAP_XY)] = -inactive_area_left;
- ts->snap_up[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x + inactive_area_right;
- ts->snap_down[!(ts->flags & SYNAPTICS_SWAP_XY)] = -inactive_area_top;
- ts->snap_up[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y + inactive_area_bottom;
- ts->snap_down_on[!!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_left_on;
- ts->snap_down_off[!!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_left_off;
- ts->snap_up_on[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x - snap_right_on;
- ts->snap_up_off[!!(ts->flags & SYNAPTICS_SWAP_XY)] = max_x - snap_right_off;
- ts->snap_down_on[!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_top_on;
- ts->snap_down_off[!(ts->flags & SYNAPTICS_SWAP_XY)] = snap_top_off;
- ts->snap_up_on[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y - snap_bottom_on;
- ts->snap_up_off[!(ts->flags & SYNAPTICS_SWAP_XY)] = max_y - snap_bottom_off;
- printk(KERN_INFO "synaptics_ts_probe: max_x %d, max_y %d\n", max_x, max_y);
- printk(KERN_INFO "synaptics_ts_probe: inactive_x %d %d, inactive_y %d %d\n",
- inactive_area_left, inactive_area_right,
- inactive_area_top, inactive_area_bottom);
- printk(KERN_INFO "synaptics_ts_probe: snap_x %d-%d %d-%d, snap_y %d-%d %d-%d\n",
- snap_left_on, snap_left_off, snap_right_on, snap_right_off,
- snap_top_on, snap_top_off, snap_bottom_on, snap_bottom_off);
- input_set_abs_params(ts->input_dev, ABS_X, -inactive_area_left, max_x + inactive_area_right, fuzz_x, 0);
- input_set_abs_params(ts->input_dev, ABS_Y, -inactive_area_top, max_y + inactive_area_bottom, fuzz_y, 0);
- input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 255, fuzz_p, 0);
- input_set_abs_params(ts->input_dev, ABS_TOOL_WIDTH, 0, 15, fuzz_w, 0);
- input_set_abs_params(ts->input_dev, ABS_HAT0X, -inactive_area_left, max_x + inactive_area_right, fuzz_x, 0);
- input_set_abs_params(ts->input_dev, ABS_HAT0Y, -inactive_area_top, max_y + inactive_area_bottom, fuzz_y, 0);
- /* ts->input_dev->name = ts->keypad_info->name; */
+
+ compute_areas(ts, pdata, max_x, max_y);
+
+
ret = input_register_device(ts->input_dev);
if (ret) {
printk(KERN_ERR "synaptics_ts_probe: Unable to register %s input device\n", ts->input_dev->name);
@@ -489,33 +476,27 @@ static int synaptics_ts_probe(
ts->timer.function = synaptics_ts_timer_func;
hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL);
}
-#ifdef CONFIG_HAS_EARLYSUSPEND
- ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
- ts->early_suspend.suspend = synaptics_ts_early_suspend;
- ts->early_suspend.resume = synaptics_ts_late_resume;
- register_early_suspend(&ts->early_suspend);
-#endif
printk(KERN_INFO "synaptics_ts_probe: Start touchscreen %s in %s mode\n", ts->input_dev->name, ts->use_irq ? "interrupt" : "polling");
return 0;
-err_input_register_device_failed:
+ err_input_register_device_failed:
input_free_device(ts->input_dev);
-err_input_dev_alloc_failed:
-err_detect_failed:
-err_power_failed:
+ err_input_dev_alloc_failed:
+ err_detect_failed:
+ err_power_failed:
kfree(ts);
-err_alloc_data_failed:
-err_check_functionality_failed:
+ err_alloc_data_failed:
+ err_check_functionality_failed:
return ret;
}
static int synaptics_ts_remove(struct i2c_client *client)
{
struct synaptics_ts_data *ts = i2c_get_clientdata(client);
- unregister_early_suspend(&ts->early_suspend);
+
if (ts->use_irq)
free_irq(client->irq, ts);
else
@@ -525,72 +506,6 @@ static int synaptics_ts_remove(struct i2c_client *client)
return 0;
}
-static int synaptics_ts_suspend(struct i2c_client *client, pm_message_t mesg)
-{
- int ret;
- struct synaptics_ts_data *ts = i2c_get_clientdata(client);
-
- if (ts->use_irq)
- disable_irq(client->irq);
- else
- hrtimer_cancel(&ts->timer);
- ret = cancel_work_sync(&ts->work);
- if (ret && ts->use_irq) /* if work was pending disable-count is now 2 */
- enable_irq(client->irq);
- ret = i2c_smbus_write_byte_data(ts->client, 0xf1, 0); /* disable interrupt */
- if (ret < 0)
- printk(KERN_ERR "synaptics_ts_suspend: i2c_smbus_write_byte_data failed\n");
-
- ret = i2c_smbus_write_byte_data(client, 0xf0, 0x86); /* deep sleep */
- if (ret < 0)
- printk(KERN_ERR "synaptics_ts_suspend: i2c_smbus_write_byte_data failed\n");
- if (ts->power) {
- ret = ts->power(0);
- if (ret < 0)
- printk(KERN_ERR "synaptics_ts_resume power off failed\n");
- }
- return 0;
-}
-
-static int synaptics_ts_resume(struct i2c_client *client)
-{
- int ret;
- struct synaptics_ts_data *ts = i2c_get_clientdata(client);
-
- if (ts->power) {
- ret = ts->power(1);
- if (ret < 0)
- printk(KERN_ERR "synaptics_ts_resume power on failed\n");
- }
-
- synaptics_init_panel(ts);
-
- if (ts->use_irq)
- enable_irq(client->irq);
-
- if (!ts->use_irq)
- hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL);
- else
- i2c_smbus_write_byte_data(ts->client, 0xf1, 0x01); /* enable abs int */
-
- return 0;
-}
-
-#ifdef CONFIG_HAS_EARLYSUSPEND
-static void synaptics_ts_early_suspend(struct early_suspend *h)
-{
- struct synaptics_ts_data *ts;
- ts = container_of(h, struct synaptics_ts_data, early_suspend);
- synaptics_ts_suspend(ts->client, PMSG_SUSPEND);
-}
-
-static void synaptics_ts_late_resume(struct early_suspend *h)
-{
- struct synaptics_ts_data *ts;
- ts = container_of(h, struct synaptics_ts_data, early_suspend);
- synaptics_ts_resume(ts->client);
-}
-#endif
static const struct i2c_device_id synaptics_ts_id[] = {
{ SYNAPTICS_I2C_RMI_NAME, 0 },
@@ -600,10 +515,6 @@ static const struct i2c_device_id synaptics_ts_id[] = {
static struct i2c_driver synaptics_ts_driver = {
.probe = synaptics_ts_probe,
.remove = synaptics_ts_remove,
-#ifndef CONFIG_HAS_EARLYSUSPEND
- .suspend = synaptics_ts_suspend,
- .resume = synaptics_ts_resume,
-#endif
.id_table = synaptics_ts_id,
.driver = {
.name = SYNAPTICS_I2C_RMI_NAME,
diff --git a/include/linux/synaptics_i2c_rmi.h b/include/linux/synaptics_i2c_rmi.h
index ca51b2f..73e1de7 100644
--- a/include/linux/synaptics_i2c_rmi.h
+++ b/include/linux/synaptics_i2c_rmi.h
@@ -1,5 +1,5 @@
/*
- * include/linux/synaptics_i2c_rmi.h - platform data structure for f75375s sensor
+ * synaptics_i2c_rmi.h - platform data structure for f75375s sensor
*
* Copyright (C) 2008 Google, Inc.
*
@@ -27,25 +27,25 @@ enum {
};
struct synaptics_i2c_rmi_platform_data {
- uint32_t version; /* Use this entry for panels with */
+ u32 version; /* Use this entry for panels with */
/* (major << 8 | minor) version or above. */
/* If non-zero another array entry follows */
int (*power)(int on); /* Only valid in first array entry */
- uint32_t flags;
- uint32_t inactive_left; /* 0x10000 = screen width */
- uint32_t inactive_right; /* 0x10000 = screen width */
- uint32_t inactive_top; /* 0x10000 = screen height */
- uint32_t inactive_bottom; /* 0x10000 = screen height */
- uint32_t snap_left_on; /* 0x10000 = screen width */
- uint32_t snap_left_off; /* 0x10000 = screen width */
- uint32_t snap_right_on; /* 0x10000 = screen width */
- uint32_t snap_right_off; /* 0x10000 = screen width */
- uint32_t snap_top_on; /* 0x10000 = screen height */
- uint32_t snap_top_off; /* 0x10000 = screen height */
- uint32_t snap_bottom_on; /* 0x10000 = screen height */
- uint32_t snap_bottom_off; /* 0x10000 = screen height */
- uint32_t fuzz_x; /* 0x10000 = screen width */
- uint32_t fuzz_y; /* 0x10000 = screen height */
+ u32 flags;
+ u32 inactive_left; /* 0x10000 = screen width */
+ u32 inactive_right; /* 0x10000 = screen width */
+ u32 inactive_top; /* 0x10000 = screen height */
+ u32 inactive_bottom; /* 0x10000 = screen height */
+ u32 snap_left_on; /* 0x10000 = screen width */
+ u32 snap_left_off; /* 0x10000 = screen width */
+ u32 snap_right_on; /* 0x10000 = screen width */
+ u32 snap_right_off; /* 0x10000 = screen width */
+ u32 snap_top_on; /* 0x10000 = screen height */
+ u32 snap_top_off; /* 0x10000 = screen height */
+ u32 snap_bottom_on; /* 0x10000 = screen height */
+ u32 snap_bottom_off; /* 0x10000 = screen height */
+ u32 fuzz_x; /* 0x10000 = screen width */
+ u32 fuzz_y; /* 0x10000 = screen height */
int fuzz_p;
int fuzz_w;
};
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
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