forked from Minki/linux
Staging: HTC Dream: touchscreen driver for staging
This adds support for synaptic touchscreen, used in HTC dream cellphone. This is original version from Arve, fixed only to compile; I do have cleaner version, but I broken something inside, and this will preserve authorship better. I originally tried to push the driver directly to input/touchscreen, but the driver has some issues with interrupt handling that are more difficult to fix than I expected at first. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Arve Hjønnevåg
Greg Kroah-Hartman
parent
d4d000f636
commit
2e4d2af96a
635
drivers/staging/dream/synaptics_i2c_rmi.c
Normal file
635
drivers/staging/dream/synaptics_i2c_rmi.c
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@ -0,0 +1,635 @@
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/* drivers/input/keyboard/synaptics_i2c_rmi.c
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*
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* Copyright (C) 2007 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/hrtimer.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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#include "synaptics_i2c_rmi.h"
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#define swap(x, y) do { typeof(x) z = x; x = y; y = z; } while (0)
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static struct workqueue_struct *synaptics_wq;
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struct synaptics_ts_data {
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uint16_t addr;
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struct i2c_client *client;
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struct input_dev *input_dev;
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int use_irq;
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struct hrtimer timer;
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struct work_struct work;
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uint16_t max[2];
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int snap_state[2][2];
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int snap_down_on[2];
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int snap_down_off[2];
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int snap_up_on[2];
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int snap_up_off[2];
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int snap_down[2];
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int snap_up[2];
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uint32_t flags;
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int (*power)(int on);
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#ifdef CONFIG_HAS_EARLYSUSPEND
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struct early_suspend early_suspend;
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#endif
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};
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#ifdef CONFIG_HAS_EARLYSUSPEND
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static void synaptics_ts_early_suspend(struct early_suspend *h);
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static void synaptics_ts_late_resume(struct early_suspend *h);
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#endif
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static int synaptics_init_panel(struct synaptics_ts_data *ts)
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{
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int ret;
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ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x10); /* page select = 0x10 */
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_write_byte_data failed for page select\n");
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goto err_page_select_failed;
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}
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ret = i2c_smbus_write_byte_data(ts->client, 0x41, 0x04); /* Set "No Clip Z" */
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if (ret < 0)
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printk(KERN_ERR "i2c_smbus_write_byte_data failed for No Clip Z\n");
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err_page_select_failed:
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ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x04); /* page select = 0x04 */
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if (ret < 0)
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printk(KERN_ERR "i2c_smbus_write_byte_data failed for page select\n");
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ret = i2c_smbus_write_byte_data(ts->client, 0xf0, 0x81); /* normal operation, 80 reports per second */
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if (ret < 0)
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printk(KERN_ERR "synaptics_ts_resume: i2c_smbus_write_byte_data failed\n");
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return ret;
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}
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static void synaptics_ts_work_func(struct work_struct *work)
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{
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int i;
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int ret;
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int bad_data = 0;
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struct i2c_msg msg[2];
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uint8_t start_reg;
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uint8_t buf[15];
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struct synaptics_ts_data *ts = container_of(work, struct synaptics_ts_data, work);
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msg[0].addr = ts->client->addr;
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msg[0].flags = 0;
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msg[0].len = 1;
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msg[0].buf = &start_reg;
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start_reg = 0x00;
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msg[1].addr = ts->client->addr;
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msg[1].flags = I2C_M_RD;
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msg[1].len = sizeof(buf);
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msg[1].buf = buf;
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/* printk("synaptics_ts_work_func\n"); */
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for (i = 0; i < ((ts->use_irq && !bad_data) ? 1 : 10); i++) {
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ret = i2c_transfer(ts->client->adapter, msg, 2);
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if (ret < 0) {
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printk(KERN_ERR "synaptics_ts_work_func: i2c_transfer failed\n");
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bad_data = 1;
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} else {
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/* printk("synaptics_ts_work_func: %x %x %x %x %x %x" */
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/* " %x %x %x %x %x %x %x %x %x, ret %d\n", */
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/* buf[0], buf[1], buf[2], buf[3], */
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/* buf[4], buf[5], buf[6], buf[7], */
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/* buf[8], buf[9], buf[10], buf[11], */
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/* buf[12], buf[13], buf[14], ret); */
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if ((buf[14] & 0xc0) != 0x40) {
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printk(KERN_WARNING "synaptics_ts_work_func:"
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" bad read %x %x %x %x %x %x %x %x %x"
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" %x %x %x %x %x %x, ret %d\n",
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buf[0], buf[1], buf[2], buf[3],
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buf[4], buf[5], buf[6], buf[7],
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buf[8], buf[9], buf[10], buf[11],
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buf[12], buf[13], buf[14], ret);
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if (bad_data)
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synaptics_init_panel(ts);
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bad_data = 1;
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continue;
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}
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bad_data = 0;
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if ((buf[14] & 1) == 0) {
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/* printk("read %d coordinates\n", i); */
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break;
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} else {
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int pos[2][2];
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int f, a;
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int base;
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/* int x = buf[3] | (uint16_t)(buf[2] & 0x1f) << 8; */
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/* int y = buf[5] | (uint16_t)(buf[4] & 0x1f) << 8; */
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int z = buf[1];
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int w = buf[0] >> 4;
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int finger = buf[0] & 7;
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/* int x2 = buf[3+6] | (uint16_t)(buf[2+6] & 0x1f) << 8; */
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/* int y2 = buf[5+6] | (uint16_t)(buf[4+6] & 0x1f) << 8; */
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/* int z2 = buf[1+6]; */
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/* int w2 = buf[0+6] >> 4; */
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/* int finger2 = buf[0+6] & 7; */
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/* int dx = (int8_t)buf[12]; */
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/* int dy = (int8_t)buf[13]; */
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int finger2_pressed;
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/* 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", */
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/* x, y, z, w, finger, */
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/* x2, y2, z2, w2, finger2, */
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/* dx, dy); */
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base = 2;
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for (f = 0; f < 2; f++) {
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uint32_t flip_flag = SYNAPTICS_FLIP_X;
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for (a = 0; a < 2; a++) {
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int p = buf[base + 1];
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p |= (uint16_t)(buf[base] & 0x1f) << 8;
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if (ts->flags & flip_flag)
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p = ts->max[a] - p;
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if (ts->flags & SYNAPTICS_SNAP_TO_INACTIVE_EDGE) {
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if (ts->snap_state[f][a]) {
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if (p <= ts->snap_down_off[a])
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p = ts->snap_down[a];
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else if (p >= ts->snap_up_off[a])
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p = ts->snap_up[a];
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else
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ts->snap_state[f][a] = 0;
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} else {
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if (p <= ts->snap_down_on[a]) {
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p = ts->snap_down[a];
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ts->snap_state[f][a] = 1;
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} else if (p >= ts->snap_up_on[a]) {
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p = ts->snap_up[a];
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ts->snap_state[f][a] = 1;
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}
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}
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}
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pos[f][a] = p;
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base += 2;
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flip_flag <<= 1;
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}
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base += 2;
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if (ts->flags & SYNAPTICS_SWAP_XY)
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swap(pos[f][0], pos[f][1]);
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}
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if (z) {
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input_report_abs(ts->input_dev, ABS_X, pos[0][0]);
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input_report_abs(ts->input_dev, ABS_Y, pos[0][1]);
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}
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input_report_abs(ts->input_dev, ABS_PRESSURE, z);
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input_report_abs(ts->input_dev, ABS_TOOL_WIDTH, w);
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input_report_key(ts->input_dev, BTN_TOUCH, finger);
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finger2_pressed = finger > 1 && finger != 7;
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input_report_key(ts->input_dev, BTN_2, finger2_pressed);
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if (finger2_pressed) {
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input_report_abs(ts->input_dev, ABS_HAT0X, pos[1][0]);
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input_report_abs(ts->input_dev, ABS_HAT0Y, pos[1][1]);
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}
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input_sync(ts->input_dev);
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}
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}
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}
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if (ts->use_irq)
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enable_irq(ts->client->irq);
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}
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static enum hrtimer_restart synaptics_ts_timer_func(struct hrtimer *timer)
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{
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struct synaptics_ts_data *ts = container_of(timer, struct synaptics_ts_data, timer);
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/* printk("synaptics_ts_timer_func\n"); */
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queue_work(synaptics_wq, &ts->work);
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hrtimer_start(&ts->timer, ktime_set(0, 12500000), HRTIMER_MODE_REL);
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return HRTIMER_NORESTART;
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}
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static irqreturn_t synaptics_ts_irq_handler(int irq, void *dev_id)
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{
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struct synaptics_ts_data *ts = dev_id;
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/* printk("synaptics_ts_irq_handler\n"); */
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disable_irq(ts->client->irq);
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queue_work(synaptics_wq, &ts->work);
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return IRQ_HANDLED;
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}
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static int synaptics_ts_probe(
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struct i2c_client *client, const struct i2c_device_id *id)
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{
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struct synaptics_ts_data *ts;
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uint8_t buf0[4];
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uint8_t buf1[8];
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struct i2c_msg msg[2];
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int ret = 0;
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uint16_t max_x, max_y;
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int fuzz_x, fuzz_y, fuzz_p, fuzz_w;
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struct synaptics_i2c_rmi_platform_data *pdata;
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int inactive_area_left;
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int inactive_area_right;
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int inactive_area_top;
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int inactive_area_bottom;
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int snap_left_on;
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int snap_left_off;
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int snap_right_on;
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int snap_right_off;
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int snap_top_on;
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int snap_top_off;
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int snap_bottom_on;
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int snap_bottom_off;
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uint32_t panel_version;
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
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printk(KERN_ERR "synaptics_ts_probe: need I2C_FUNC_I2C\n");
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ret = -ENODEV;
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goto err_check_functionality_failed;
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}
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ts = kzalloc(sizeof(*ts), GFP_KERNEL);
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if (ts == NULL) {
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ret = -ENOMEM;
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goto err_alloc_data_failed;
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}
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INIT_WORK(&ts->work, synaptics_ts_work_func);
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ts->client = client;
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i2c_set_clientdata(client, ts);
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pdata = client->dev.platform_data;
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if (pdata)
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ts->power = pdata->power;
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if (ts->power) {
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ret = ts->power(1);
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if (ret < 0) {
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printk(KERN_ERR "synaptics_ts_probe power on failed\n");
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goto err_power_failed;
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}
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}
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ret = i2c_smbus_write_byte_data(ts->client, 0xf4, 0x01); /* device command = reset */
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_write_byte_data failed\n");
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/* fail? */
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}
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{
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int retry = 10;
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while (retry-- > 0) {
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ret = i2c_smbus_read_byte_data(ts->client, 0xe4);
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if (ret >= 0)
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break;
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msleep(100);
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}
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}
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
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goto err_detect_failed;
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}
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printk(KERN_INFO "synaptics_ts_probe: Product Major Version %x\n", ret);
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panel_version = ret << 8;
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ret = i2c_smbus_read_byte_data(ts->client, 0xe5);
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
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goto err_detect_failed;
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}
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printk(KERN_INFO "synaptics_ts_probe: Product Minor Version %x\n", ret);
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panel_version |= ret;
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ret = i2c_smbus_read_byte_data(ts->client, 0xe3);
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
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goto err_detect_failed;
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}
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printk(KERN_INFO "synaptics_ts_probe: product property %x\n", ret);
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if (pdata) {
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while (pdata->version > panel_version)
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pdata++;
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ts->flags = pdata->flags;
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inactive_area_left = pdata->inactive_left;
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inactive_area_right = pdata->inactive_right;
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inactive_area_top = pdata->inactive_top;
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inactive_area_bottom = pdata->inactive_bottom;
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snap_left_on = pdata->snap_left_on;
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snap_left_off = pdata->snap_left_off;
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snap_right_on = pdata->snap_right_on;
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snap_right_off = pdata->snap_right_off;
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snap_top_on = pdata->snap_top_on;
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snap_top_off = pdata->snap_top_off;
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snap_bottom_on = pdata->snap_bottom_on;
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snap_bottom_off = pdata->snap_bottom_off;
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fuzz_x = pdata->fuzz_x;
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fuzz_y = pdata->fuzz_y;
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fuzz_p = pdata->fuzz_p;
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fuzz_w = pdata->fuzz_w;
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} else {
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inactive_area_left = 0;
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inactive_area_right = 0;
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inactive_area_top = 0;
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inactive_area_bottom = 0;
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snap_left_on = 0;
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snap_left_off = 0;
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snap_right_on = 0;
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snap_right_off = 0;
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snap_top_on = 0;
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snap_top_off = 0;
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snap_bottom_on = 0;
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snap_bottom_off = 0;
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fuzz_x = 0;
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fuzz_y = 0;
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fuzz_p = 0;
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fuzz_w = 0;
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}
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ret = i2c_smbus_read_byte_data(ts->client, 0xf0);
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
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goto err_detect_failed;
|
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}
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printk(KERN_INFO "synaptics_ts_probe: device control %x\n", ret);
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ret = i2c_smbus_read_byte_data(ts->client, 0xf1);
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_byte_data failed\n");
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goto err_detect_failed;
|
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}
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printk(KERN_INFO "synaptics_ts_probe: interrupt enable %x\n", ret);
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ret = i2c_smbus_write_byte_data(ts->client, 0xf1, 0); /* disable interrupt */
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_write_byte_data failed\n");
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goto err_detect_failed;
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}
|
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msg[0].addr = ts->client->addr;
|
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msg[0].flags = 0;
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msg[0].len = 1;
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msg[0].buf = buf0;
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buf0[0] = 0xe0;
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msg[1].addr = ts->client->addr;
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msg[1].flags = I2C_M_RD;
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msg[1].len = 8;
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msg[1].buf = buf1;
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ret = i2c_transfer(ts->client->adapter, msg, 2);
|
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if (ret < 0) {
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printk(KERN_ERR "i2c_transfer failed\n");
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goto err_detect_failed;
|
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}
|
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printk(KERN_INFO "synaptics_ts_probe: 0xe0: %x %x %x %x %x %x %x %x\n",
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buf1[0], buf1[1], buf1[2], buf1[3],
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buf1[4], buf1[5], buf1[6], buf1[7]);
|
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ret = i2c_smbus_write_byte_data(ts->client, 0xff, 0x10); /* page select = 0x10 */
|
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_write_byte_data failed for page select\n");
|
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goto err_detect_failed;
|
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}
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ret = i2c_smbus_read_word_data(ts->client, 0x04);
|
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if (ret < 0) {
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printk(KERN_ERR "i2c_smbus_read_word_data failed\n");
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goto err_detect_failed;
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}
|
||||
ts->max[0] = max_x = (ret >> 8 & 0xff) | ((ret & 0x1f) << 8);
|
||||
ret = i2c_smbus_read_word_data(ts->client, 0x06);
|
||||
if (ret < 0) {
|
||||
printk(KERN_ERR "i2c_smbus_read_word_data failed\n");
|
||||
goto err_detect_failed;
|
||||
}
|
||||
ts->max[1] = max_y = (ret >> 8 & 0xff) | ((ret & 0x1f) << 8);
|
||||
if (ts->flags & SYNAPTICS_SWAP_XY)
|
||||
swap(max_x, max_y);
|
||||
|
||||
ret = synaptics_init_panel(ts); /* will also switch back to page 0x04 */
|
||||
if (ret < 0) {
|
||||
printk(KERN_ERR "synaptics_init_panel failed\n");
|
||||
goto err_detect_failed;
|
||||
}
|
||||
|
||||
ts->input_dev = input_allocate_device();
|
||||
if (ts->input_dev == NULL) {
|
||||
ret = -ENOMEM;
|
||||
printk(KERN_ERR "synaptics_ts_probe: Failed to allocate input device\n");
|
||||
goto err_input_dev_alloc_failed;
|
||||
}
|
||||
ts->input_dev->name = "synaptics-rmi-touchscreen";
|
||||
set_bit(EV_SYN, ts->input_dev->evbit);
|
||||
set_bit(EV_KEY, ts->input_dev->evbit);
|
||||
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; */
|
||||
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);
|
||||
goto err_input_register_device_failed;
|
||||
}
|
||||
if (client->irq) {
|
||||
ret = request_irq(client->irq, synaptics_ts_irq_handler, 0, client->name, ts);
|
||||
if (ret == 0) {
|
||||
ret = i2c_smbus_write_byte_data(ts->client, 0xf1, 0x01); /* enable abs int */
|
||||
if (ret)
|
||||
free_irq(client->irq, ts);
|
||||
}
|
||||
if (ret == 0)
|
||||
ts->use_irq = 1;
|
||||
else
|
||||
dev_err(&client->dev, "request_irq failed\n");
|
||||
}
|
||||
if (!ts->use_irq) {
|
||||
hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
||||
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:
|
||||
input_free_device(ts->input_dev);
|
||||
|
||||
err_input_dev_alloc_failed:
|
||||
err_detect_failed:
|
||||
err_power_failed:
|
||||
kfree(ts);
|
||||
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);
|
||||
#ifdef CONFIG_HAS_EARLYSUSPEND
|
||||
unregister_early_suspend(&ts->early_suspend);
|
||||
#endif
|
||||
if (ts->use_irq)
|
||||
free_irq(client->irq, ts);
|
||||
else
|
||||
hrtimer_cancel(&ts->timer);
|
||||
input_unregister_device(ts->input_dev);
|
||||
kfree(ts);
|
||||
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 },
|
||||
{ }
|
||||
};
|
||||
|
||||
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,
|
||||
},
|
||||
};
|
||||
|
||||
static int __devinit synaptics_ts_init(void)
|
||||
{
|
||||
synaptics_wq = create_singlethread_workqueue("synaptics_wq");
|
||||
if (!synaptics_wq)
|
||||
return -ENOMEM;
|
||||
return i2c_add_driver(&synaptics_ts_driver);
|
||||
}
|
||||
|
||||
static void __exit synaptics_ts_exit(void)
|
||||
{
|
||||
i2c_del_driver(&synaptics_ts_driver);
|
||||
if (synaptics_wq)
|
||||
destroy_workqueue(synaptics_wq);
|
||||
}
|
||||
|
||||
module_init(synaptics_ts_init);
|
||||
module_exit(synaptics_ts_exit);
|
||||
|
||||
MODULE_DESCRIPTION("Synaptics Touchscreen Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
53
drivers/staging/dream/synaptics_i2c_rmi.h
Normal file
53
drivers/staging/dream/synaptics_i2c_rmi.h
Normal file
@ -0,0 +1,53 @@
|
||||
/*
|
||||
* include/linux/synaptics_i2c_rmi.h - platform data structure for f75375s sensor
|
||||
*
|
||||
* Copyright (C) 2008 Google, Inc.
|
||||
*
|
||||
* This software is licensed under the terms of the GNU General Public
|
||||
* License version 2, as published by the Free Software Foundation, and
|
||||
* may be copied, distributed, and modified under those terms.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_SYNAPTICS_I2C_RMI_H
|
||||
#define _LINUX_SYNAPTICS_I2C_RMI_H
|
||||
|
||||
#define SYNAPTICS_I2C_RMI_NAME "synaptics-rmi-ts"
|
||||
|
||||
enum {
|
||||
SYNAPTICS_FLIP_X = 1UL << 0,
|
||||
SYNAPTICS_FLIP_Y = 1UL << 1,
|
||||
SYNAPTICS_SWAP_XY = 1UL << 2,
|
||||
SYNAPTICS_SNAP_TO_INACTIVE_EDGE = 1UL << 3,
|
||||
};
|
||||
|
||||
struct synaptics_i2c_rmi_platform_data {
|
||||
uint32_t 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 */
|
||||
int fuzz_p;
|
||||
int fuzz_w;
|
||||
};
|
||||
|
||||
#endif /* _LINUX_SYNAPTICS_I2C_RMI_H */
|
||||
Loading…
Reference in New Issue
Block a user