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gerrit-public.fairphone.software / kernel / msm / 5a042f75092650f600957d1b9bce2da8876d4ede / . / drivers / input / touchscreen / cyttsp-i2c.c
blob: 9df118974264fb5324501affc449ea8742007ffd [file] [log] [blame]
/* Source for:
* Cypress TrueTouch(TM) Standard Product I2C touchscreen driver.
* drivers/input/touchscreen/cyttsp-i2c.c
*
* Copyright (C) 2009, 2010 Cypress Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2, and only version 2, as published by the
* Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Cypress reserves the right to make changes without further notice
* to the materials described herein. Cypress does not assume any
* liability arising out of the application described herein.
*
* Contact Cypress Semiconductor at www.cypress.com
*
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/byteorder/generic.h>
#include <linux/bitops.h>
#include <linux/pm_runtime.h>
#include <linux/firmware.h>
#include <linux/mutex.h>
#include <linux/regulator/consumer.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif /* CONFIG_HAS_EARLYSUSPEND */
#define CY_DECLARE_GLOBALS
#include <linux/cyttsp.h>
uint32_t cyttsp_tsdebug1 = 0xff;
module_param_named(tsdebug1, cyttsp_tsdebug1, uint, 0664);
#define FW_FNAME_LEN 40
#define TTSP_BUFF_SIZE 50
/* CY TTSP I2C Driver private data */
struct cyttsp {
struct i2c_client *client;
struct input_dev *input;
struct timer_list timer;
struct mutex mutex;
char phys[32];
struct cyttsp_platform_data *platform_data;
u8 num_prv_st_tch;
u16 fw_start_addr;
u16 act_trk[CY_NUM_TRK_ID];
u16 prv_st_tch[CY_NUM_ST_TCH_ID];
u16 prv_mt_tch[CY_NUM_MT_TCH_ID];
u16 prv_mt_pos[CY_NUM_TRK_ID][2];
atomic_t irq_enabled;
bool cyttsp_update_fw;
bool cyttsp_fwloader_mode;
bool is_suspended;
struct regulator **vdd;
char fw_fname[FW_FNAME_LEN];
#ifdef CONFIG_HAS_EARLYSUSPEND
struct early_suspend early_suspend;
#endif /* CONFIG_HAS_EARLYSUSPEND */
};
static u8 irq_cnt; /* comparison counter with register valuw */
static u32 irq_cnt_total; /* total interrupts */
static u32 irq_err_cnt; /* count number of touch interrupts with err */
#define CY_IRQ_CNT_MASK 0x000000FF /* mapped for sizeof count in reg */
#define CY_IRQ_CNT_REG 0x00 /* tt_undef[0]=reg 0x1B - Gen3 only */
#ifdef CONFIG_HAS_EARLYSUSPEND
static void cyttsp_early_suspend(struct early_suspend *handler);
static void cyttsp_late_resume(struct early_suspend *handler);
#endif /* CONFIG_HAS_EARLYSUSPEND */
/* ****************************************************************************
* Prototypes for static functions
* ************************************************************************** */
static irqreturn_t cyttsp_irq(int irq, void *handle);
static int cyttsp_inlist(u16 prev_track[],
u8 cur_trk_id, u8 *prev_loc, u8 num_touches);
static int cyttsp_next_avail_inlist(u16 cur_trk[],
u8 *new_loc, u8 num_touches);
static int cyttsp_putbl(struct cyttsp *ts, int show,
int show_status, int show_version, int show_cid);
static int __devinit cyttsp_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int __devexit cyttsp_remove(struct i2c_client *client);
static int cyttsp_resume(struct device *dev);
static int cyttsp_suspend(struct device *dev);
/* Static variables */
static struct cyttsp_gen3_xydata_t g_xy_data;
static struct cyttsp_bootloader_data_t g_bl_data;
static struct cyttsp_sysinfo_data_t g_sysinfo_data;
static const struct i2c_device_id cyttsp_id[] = {
{ CY_I2C_NAME, 0 }, { }
};
static u8 bl_cmd[] = {
CY_BL_FILE0, CY_BL_CMD, CY_BL_EXIT,
CY_BL_KEY0, CY_BL_KEY1, CY_BL_KEY2,
CY_BL_KEY3, CY_BL_KEY4, CY_BL_KEY5,
CY_BL_KEY6, CY_BL_KEY7};
MODULE_DEVICE_TABLE(i2c, cyttsp_id);
#ifdef CONFIG_PM
static const struct dev_pm_ops cyttsp_pm_ops = {
#ifndef CONFIG_HAS_EARLYSUSPEND
.suspend = cyttsp_suspend,
.resume = cyttsp_resume,
#endif
};
#endif
static struct i2c_driver cyttsp_driver = {
.driver = {
.name = CY_I2C_NAME,
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &cyttsp_pm_ops,
#endif
},
.probe = cyttsp_probe,
.remove = __devexit_p(cyttsp_remove),
.id_table = cyttsp_id,
};
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard touchscreen driver");
MODULE_AUTHOR("Cypress");
static ssize_t cyttsp_irq_status(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct i2c_client *client = container_of(dev, struct i2c_client, dev);
struct cyttsp *ts = i2c_get_clientdata(client);
return snprintf(buf, TTSP_BUFF_SIZE, "%u\n",
atomic_read(&ts->irq_enabled));
}
static ssize_t cyttsp_irq_enable(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct i2c_client *client = container_of(dev, struct i2c_client, dev);
struct cyttsp *ts = i2c_get_clientdata(client);
int err = 0;
unsigned long value;
if (size > 2)
return -EINVAL;
err = strict_strtoul(buf, 10, &value);
if (err != 0)
return err;
switch (value) {
case 0:
if (atomic_cmpxchg(&ts->irq_enabled, 1, 0)) {
pr_info("touch irq disabled!\n");
disable_irq_nosync(ts->client->irq);
}
err = size;
break;
case 1:
if (!atomic_cmpxchg(&ts->irq_enabled, 0, 1)) {
pr_info("touch irq enabled!\n");
enable_irq(ts->client->irq);
}
err = size;
break;
default:
pr_info("cyttsp_irq_enable failed -> irq_enabled = %d\n",
atomic_read(&ts->irq_enabled));
err = -EINVAL;
break;
}
return err;
}
static DEVICE_ATTR(irq_enable, 0664, cyttsp_irq_status, cyttsp_irq_enable);
static ssize_t cyttsp_fw_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return snprintf(buf, TTSP_BUFF_SIZE, "%d.%d.%d\n", g_bl_data.appid_lo,
g_bl_data.appver_hi, g_bl_data.appver_lo);
}
static DEVICE_ATTR(cyttsp_fw_ver, 0664, cyttsp_fw_show, NULL);
/* firmware flashing block */
#define BLK_SIZE 16
#define DATA_REC_LEN 64
#define BLK_SEED 0xff
#define RECAL_REG 0x1b
enum bl_commands {
BL_CMD_WRBLK = 0x39,
BL_CMD_INIT = 0x38,
BL_CMD_TERMINATE = 0x3b,
};
/* TODO: Add key as part of platform data */
#define KEY_CS (0 + 1 + 2 + 3 + 4 + 5 + 6 + 7)
#define KEY {0, 1, 2, 3, 4, 5, 6, 7}
static const char _key[] = KEY;
#define KEY_LEN sizeof(_key)
static int rec_cnt;
struct fw_record {
u8 seed;
u8 cmd;
u8 key[KEY_LEN];
u8 blk_hi;
u8 blk_lo;
u8 data[DATA_REC_LEN];
u8 data_cs;
u8 rec_cs;
};
#define fw_rec_size (sizeof(struct fw_record))
struct cmd_record {
u8 reg;
u8 seed;
u8 cmd;
u8 key[KEY_LEN];
};
#define cmd_rec_size (sizeof(struct cmd_record))
static struct fw_record data_record = {
.seed = BLK_SEED,
.cmd = BL_CMD_WRBLK,
.key = KEY,
};
static const struct cmd_record terminate_rec = {
.reg = 0,
.seed = BLK_SEED,
.cmd = BL_CMD_TERMINATE,
.key = KEY,
};
static const struct cmd_record initiate_rec = {
.reg = 0,
.seed = BLK_SEED,
.cmd = BL_CMD_INIT,
.key = KEY,
};
#define BL_REC1_ADDR 0x0780
#define BL_REC2_ADDR 0x07c0
#define BL_CHECKSUM_MASK 0x01
#define ID_INFO_REC ":40078000"
#define ID_INFO_OFFSET_IN_REC 77
#define REC_START_CHR ':'
#define REC_LEN_OFFSET 1
#define REC_ADDR_HI_OFFSET 3
#define REC_ADDR_LO_OFFSET 5
#define REC_TYPE_OFFSET 7
#define REC_DATA_OFFSET 9
#define REC_LINE_SIZE 141
#define NUM_CHAR_IN_HEX 2
#define ID_INFO_REC_LEN 9
static int cyttsp_soft_reset(struct cyttsp *ts)
{
int retval = 0, tries = 0;
u8 host_reg = CY_SOFT_RESET_MODE;
do {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(host_reg), &host_reg);
if (retval < 0)
msleep(20);
} while (tries++ < 10 && (retval < 0));
if (retval < 0) {
pr_err("%s: failed\n", __func__);
return retval;
}
tries = 0;
do {
msleep(20);
cyttsp_putbl(ts, 1, true, true, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
if (g_bl_data.bl_status != 0x11 && g_bl_data.bl_status != 0x10)
return -EINVAL;
return 0;
}
static void cyttsp_exit_bl_mode(struct cyttsp *ts)
{
int retval, tries = 0;
do {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(bl_cmd), bl_cmd);
if (retval < 0)
msleep(20);
} while (tries++ < 10 && (retval < 0));
}
static void cyttsp_set_sysinfo_mode(struct cyttsp *ts)
{
int retval, tries = 0;
u8 host_reg = CY_SYSINFO_MODE;
do {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(host_reg), &host_reg);
if (retval < 0)
msleep(20);
} while (tries++ < 10 && (retval < 0));
/* wait for TTSP Device to complete switch to SysInfo mode */
if (!(retval < 0)) {
retval = i2c_smbus_read_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(struct cyttsp_sysinfo_data_t),
(u8 *)&g_sysinfo_data);
} else
pr_err("%s: failed\n", __func__);
}
static void cyttsp_set_opmode(struct cyttsp *ts)
{
int retval, tries = 0;
u8 host_reg = CY_OP_MODE;
do {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(host_reg), &host_reg);
if (retval < 0)
msleep(20);
} while (tries++ < 10 && (retval < 0));
}
static int str2uc(char *str, u8 *val)
{
char substr[3];
unsigned long ulval;
int rc;
if (!str)
return -EINVAL;
if (strnlen(str, NUM_CHAR_IN_HEX) < 2)
return -EINVAL;
substr[0] = str[0];
substr[1] = str[1];
substr[2] = '\0';
rc = strict_strtoul(substr, 16, &ulval);
if (rc != 0)
return rc;
*val = (u8) ulval;
return 0;
}
static int flash_block(struct cyttsp *ts, u8 *blk, int len)
{
int retval, i, tries = 0;
char buf[(2 * (BLK_SIZE + 1)) + 1];
char *p = buf;
for (i = 0; i < len; i++, p += 2)
snprintf(p, TTSP_BUFF_SIZE, "%02x", blk[i]);
pr_debug("%s: size %d, pos %ld payload %s\n",
__func__, len, (long)0, buf);
do {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, len, blk);
if (retval < 0)
msleep(20);
} while (tries++ < 20 && (retval < 0));
if (retval < 0) {
pr_err("%s: failed\n", __func__);
return retval;
}
return 0;
}
static int flash_command(struct cyttsp *ts, const struct cmd_record *record)
{
return flash_block(ts, (u8 *)record, cmd_rec_size);
}
static void init_data_record(struct fw_record *rec, unsigned short addr)
{
addr >>= 6;
rec->blk_hi = (addr >> 8) & 0xff;
rec->blk_lo = addr & 0xff;
rec->rec_cs = rec->blk_hi + rec->blk_lo +
(unsigned char)(BLK_SEED + BL_CMD_WRBLK + KEY_CS);
rec->data_cs = 0;
}
static int check_record(struct cyttsp *ts, u8 *rec)
{
int rc;
u16 addr;
u8 r_len, type, hi_off, lo_off;
rc = str2uc(rec + REC_LEN_OFFSET, &r_len);
if (rc < 0)
return rc;
rc = str2uc(rec + REC_TYPE_OFFSET, &type);
if (rc < 0)
return rc;
if (*rec != REC_START_CHR || r_len != DATA_REC_LEN || type != 0)
return -EINVAL;
rc = str2uc(rec + REC_ADDR_HI_OFFSET, &hi_off);
if (rc < 0)
return rc;
rc = str2uc(rec + REC_ADDR_LO_OFFSET, &lo_off);
if (rc < 0)
return rc;
addr = (hi_off << 8) | lo_off;
if (addr >= ts->fw_start_addr || addr == BL_REC1_ADDR
|| addr == BL_REC2_ADDR)
return 0;
return -EINVAL;
}
static struct fw_record *prepare_record(u8 *rec)
{
int i, rc;
u16 addr;
u8 hi_off, lo_off;
u8 *p;
rc = str2uc(rec + REC_ADDR_HI_OFFSET, &hi_off);
if (rc < 0)
return ERR_PTR((long) rc);
rc = str2uc(rec + REC_ADDR_LO_OFFSET, &lo_off);
if (rc < 0)
return ERR_PTR((long) rc);
addr = (hi_off << 8) | lo_off;
init_data_record(&data_record, addr);
p = rec + REC_DATA_OFFSET;
for (i = 0; i < DATA_REC_LEN; i++) {
rc = str2uc(p, &data_record.data[i]);
if (rc < 0)
return ERR_PTR((long) rc);
data_record.data_cs += data_record.data[i];
data_record.rec_cs += data_record.data[i];
p += 2;
}
data_record.rec_cs += data_record.data_cs;
return &data_record;
}
static int flash_record(struct cyttsp *ts, const struct fw_record *record)
{
int len = fw_rec_size;
int blk_len, rc;
u8 *rec = (u8 *)record;
u8 data[BLK_SIZE + 1];
u8 blk_offset;
for (blk_offset = 0; len; len -= blk_len) {
data[0] = blk_offset;
blk_len = len > BLK_SIZE ? BLK_SIZE : len;
memcpy(data + 1, rec, blk_len);
rec += blk_len;
rc = flash_block(ts, data, blk_len + 1);
if (rc < 0)
return rc;
blk_offset += blk_len;
}
return 0;
}
static int flash_data_rec(struct cyttsp *ts, u8 *buf)
{
struct fw_record *rec;
int rc, tries;
if (!buf)
return -EINVAL;
rc = check_record(ts, buf);
if (rc < 0) {
pr_debug("%s: record ignored %s", __func__, buf);
return 0;
}
rec = prepare_record(buf);
if (IS_ERR_OR_NULL(rec))
return PTR_ERR(rec);
rc = flash_record(ts, rec);
if (rc < 0)
return rc;
tries = 0;
do {
if (rec_cnt%2)
msleep(20);
cyttsp_putbl(ts, 4, true, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
rec_cnt++;
return rc;
}
static int cyttspfw_flash_firmware(struct cyttsp *ts, const u8 *data,
int data_len)
{
u8 *buf;
int i, j;
int rc, tries = 0;
/* initiate bootload: this will erase all the existing data */
rc = flash_command(ts, &initiate_rec);
if (rc < 0)
return rc;
do {
msleep(100);
cyttsp_putbl(ts, 4, true, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
buf = kzalloc(REC_LINE_SIZE + 1, GFP_KERNEL);
if (!buf) {
pr_err("%s: no memory\n", __func__);
return -ENOMEM;
}
rec_cnt = 0;
/* flash data records */
for (i = 0, j = 0; i < data_len; i++, j++) {
if ((data[i] == REC_START_CHR) && j) {
buf[j] = 0;
rc = flash_data_rec(ts, buf);
if (rc < 0)
return rc;
j = 0;
}
buf[j] = data[i];
}
/* flash last data record */
if (j) {
buf[j] = 0;
rc = flash_data_rec(ts, buf);
if (rc < 0)
return rc;
}
kfree(buf);
/* termiate bootload */
tries = 0;
rc = flash_command(ts, &terminate_rec);
do {
msleep(100);
cyttsp_putbl(ts, 4, true, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
return rc;
}
static int get_hex_fw_ver(u8 *p, u8 *ttspver_hi, u8 *ttspver_lo,
u8 *appid_hi, u8 *appid_lo, u8 *appver_hi,
u8 *appver_lo, u8 *cid_0, u8 *cid_1, u8 *cid_2)
{
int rc;
p = p + ID_INFO_OFFSET_IN_REC;
rc = str2uc(p, ttspver_hi);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, ttspver_lo);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, appid_hi);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, appid_lo);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, appver_hi);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, appver_lo);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, cid_0);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, cid_1);
if (rc < 0)
return rc;
p += 2;
rc = str2uc(p, cid_2);
if (rc < 0)
return rc;
return 0;
}
static void cyttspfw_flash_start(struct cyttsp *ts, const u8 *data,
int data_len, u8 *buf, bool force)
{
int rc;
u8 ttspver_hi = 0, ttspver_lo = 0, fw_upgrade = 0;
u8 appid_hi = 0, appid_lo = 0;
u8 appver_hi = 0, appver_lo = 0;
u8 cid_0 = 0, cid_1 = 0, cid_2 = 0;
char *p = buf;
/* get hex firmware version */
rc = get_hex_fw_ver(p, &ttspver_hi, &ttspver_lo,
&appid_hi, &appid_lo, &appver_hi,
&appver_lo, &cid_0, &cid_1, &cid_2);
if (rc < 0) {
pr_err("%s: unable to get hex firmware version\n", __func__);
return;
}
/* disable interrupts before flashing */
if (ts->client->irq == 0)
del_timer(&ts->timer);
else
disable_irq(ts->client->irq);
/* enter bootloader idle mode */
rc = cyttsp_soft_reset(ts);
if (rc < 0) {
pr_err("%s: try entering into idle mode"
" second time\n", __func__);
msleep(1000);
rc = cyttsp_soft_reset(ts);
}
if (rc < 0) {
pr_err("%s: try again later\n", __func__);
return;
}
pr_info("Current firmware: %d.%d.%d", g_bl_data.appid_lo,
g_bl_data.appver_hi, g_bl_data.appver_lo);
pr_info("New firmware: %d.%d.%d", appid_lo, appver_hi, appver_lo);
if (force)
fw_upgrade = 1;
else if (!(g_bl_data.bl_status & BL_CHECKSUM_MASK) &&
(appid_lo == ts->platform_data->correct_fw_ver))
fw_upgrade = 1;
else
if ((appid_hi == g_bl_data.appid_hi) &&
(appid_lo == g_bl_data.appid_lo)) {
if (appver_hi > g_bl_data.appver_hi) {
fw_upgrade = 1;
} else if ((appver_hi == g_bl_data.appver_hi) &&
(appver_lo > g_bl_data.appver_lo)) {
fw_upgrade = 1;
} else {
fw_upgrade = 0;
pr_info("%s: Firmware version "
"lesser/equal to existing firmware, "
"upgrade not needed\n", __func__);
}
} else {
fw_upgrade = 0;
pr_info("%s: Firware versions do not match, "
"cannot upgrade\n", __func__);
}
if (fw_upgrade) {
pr_info("%s: Starting firmware upgrade\n", __func__);
rc = cyttspfw_flash_firmware(ts, data, data_len);
if (rc < 0)
pr_err("%s: firmware upgrade failed\n", __func__);
else
pr_info("%s: firmware upgrade success\n", __func__);
}
/* enter bootloader idle mode */
cyttsp_soft_reset(ts);
/* exit bootloader mode */
cyttsp_exit_bl_mode(ts);
msleep(100);
/* set sysinfo details */
cyttsp_set_sysinfo_mode(ts);
/* enter application mode */
cyttsp_set_opmode(ts);
/* enable interrupts */
if (ts->client->irq == 0)
mod_timer(&ts->timer, jiffies + TOUCHSCREEN_TIMEOUT);
else
enable_irq(ts->client->irq);
}
static void cyttspfw_upgrade_start(struct cyttsp *ts, const u8 *data,
int data_len, bool force)
{
int i, j;
u8 *buf;
buf = kzalloc(REC_LINE_SIZE + 1, GFP_KERNEL);
if (!buf) {
pr_err("%s: no memory\n", __func__);
return;
}
for (i = 0, j = 0; i < data_len; i++, j++) {
if ((data[i] == REC_START_CHR) && j) {
buf[j] = 0;
j = 0;
if (!strncmp(buf, ID_INFO_REC,
strnlen(ID_INFO_REC, ID_INFO_REC_LEN))) {
cyttspfw_flash_start(ts, data, data_len,
buf, force);
break;
}
}
buf[j] = data[i];
}
/* check in the last record of firmware */
if (j) {
buf[j] = 0;
if (!strncmp(buf, ID_INFO_REC,
strnlen(ID_INFO_REC, ID_INFO_REC_LEN))) {
cyttspfw_flash_start(ts, data, data_len,
buf, force);
}
}
kfree(buf);
}
static void cyttspfw_upgrade(struct device *dev, bool force)
{
struct cyttsp *ts = dev_get_drvdata(dev);
const struct firmware *cyttsp_fw;
int retval = 0;
if (ts->is_suspended == true) {
pr_err("%s: in suspend state, resume it\n", __func__);
retval = cyttsp_resume(dev);
if (retval < 0) {
pr_err("%s: unable to resume\n", __func__);
return;
}
}
retval = request_firmware(&cyttsp_fw, ts->fw_fname, dev);
if (retval < 0) {
pr_err("%s: %s request failed(%d)\n", __func__,
ts->fw_fname, retval);
} else {
/* check and start upgrade */
cyttspfw_upgrade_start(ts, cyttsp_fw->data,
cyttsp_fw->size, force);
release_firmware(cyttsp_fw);
}
}
static ssize_t cyttsp_update_fw_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct cyttsp *ts = dev_get_drvdata(dev);
return snprintf(buf, 2, "%d\n", ts->cyttsp_fwloader_mode);
}
static ssize_t cyttsp_force_update_fw_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct cyttsp *ts = dev_get_drvdata(dev);
unsigned long val;
int rc;
if (size > 2)
return -EINVAL;
rc = strict_strtoul(buf, 10, &val);
if (rc != 0)
return rc;
mutex_lock(&ts->mutex);
if (!ts->cyttsp_fwloader_mode && val) {
ts->cyttsp_fwloader_mode = 1;
cyttspfw_upgrade(dev, true);
ts->cyttsp_fwloader_mode = 0;
}
mutex_unlock(&ts->mutex);
return size;
}
static DEVICE_ATTR(cyttsp_force_update_fw, 0664, cyttsp_update_fw_show,
cyttsp_force_update_fw_store);
static ssize_t cyttsp_update_fw_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct cyttsp *ts = dev_get_drvdata(dev);
unsigned long val;
int rc;
if (size > 2)
return -EINVAL;
rc = strict_strtoul(buf, 10, &val);
if (rc != 0)
return rc;
mutex_lock(&ts->mutex);
if (!ts->cyttsp_fwloader_mode && val) {
ts->cyttsp_fwloader_mode = 1;
cyttspfw_upgrade(dev, false);
ts->cyttsp_fwloader_mode = 0;
}
mutex_unlock(&ts->mutex);
return size;
}
static DEVICE_ATTR(cyttsp_update_fw, 0664, cyttsp_update_fw_show,
cyttsp_update_fw_store);
static ssize_t cyttsp_fw_name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct cyttsp *ts = dev_get_drvdata(dev);
return snprintf(buf, FW_FNAME_LEN - 1, "%s\n", ts->fw_fname);
}
static ssize_t cyttsp_fw_name_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct cyttsp *ts = dev_get_drvdata(dev);
if (size > FW_FNAME_LEN - 1)
return -EINVAL;
strlcpy(ts->fw_fname, buf, size);
if (ts->fw_fname[size-1] == '\n')
ts->fw_fname[size-1] = 0;
return size;
}
static DEVICE_ATTR(cyttsp_fw_name, 0664, cyttsp_fw_name_show,
cyttsp_fw_name_store);
static void cyttsp_xy_handler(struct cyttsp *ts)
{
u8 id, tilt, rev_x, rev_y;
u8 i, loc;
u8 prv_tch; /* number of previous touches */
u8 cur_tch; /* number of current touches */
u16 tmp_trk[CY_NUM_MT_TCH_ID];
u16 snd_trk[CY_NUM_MT_TCH_ID];
u16 cur_trk[CY_NUM_TRK_ID];
u16 cur_st_tch[CY_NUM_ST_TCH_ID];
u16 cur_mt_tch[CY_NUM_MT_TCH_ID];
/* if NOT CY_USE_TRACKING_ID then
* only uses CY_NUM_MT_TCH_ID positions */
u16 cur_mt_pos[CY_NUM_TRK_ID][2];
/* if NOT CY_USE_TRACKING_ID then
* only uses CY_NUM_MT_TCH_ID positions */
u8 cur_mt_z[CY_NUM_TRK_ID];
u8 curr_tool_width;
u16 st_x1, st_y1;
u8 st_z1;
u16 st_x2, st_y2;
u8 st_z2;
s32 retval;
int val;
cyttsp_xdebug("TTSP handler start 1:\n");
/* get event data from CYTTSP device */
i = CY_NUM_RETRY;
do {
retval = i2c_smbus_read_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(struct cyttsp_gen3_xydata_t), (u8 *)&g_xy_data);
} while ((retval < CY_OK) && --i);
if (retval < CY_OK) {
/* return immediately on
* failure to read device on the i2c bus */
goto exit_xy_handler;
}
cyttsp_xdebug("TTSP handler start 2:\n");
/* compare own irq counter with the device irq counter */
if (ts->client->irq) {
u8 host_reg;
u8 cur_cnt;
if (ts->platform_data->use_hndshk) {
host_reg = g_xy_data.hst_mode & CY_HNDSHK_BIT ?
g_xy_data.hst_mode & ~CY_HNDSHK_BIT :
g_xy_data.hst_mode | CY_HNDSHK_BIT;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(host_reg), &host_reg);
}
cur_cnt = g_xy_data.tt_undef[CY_IRQ_CNT_REG];
irq_cnt_total++;
irq_cnt++;
if (irq_cnt != cur_cnt) {
irq_err_cnt++;
cyttsp_debug("i_c_ER: dv=%d fw=%d hm=%02X t=%lu te=%lu\n", \
irq_cnt, \
cur_cnt, g_xy_data.hst_mode, \
(unsigned long)irq_cnt_total, \
(unsigned long)irq_err_cnt);
} else {
cyttsp_debug("i_c_ok: dv=%d fw=%d hm=%02X t=%lu te=%lu\n", \
irq_cnt, \
cur_cnt, g_xy_data.hst_mode, \
(unsigned long)irq_cnt_total, \
(unsigned long)irq_err_cnt);
}
irq_cnt = cur_cnt;
}
/* Get the current num touches and return if there are no touches */
if ((GET_BOOTLOADERMODE(g_xy_data.tt_mode) == 1) ||
(GET_HSTMODE(g_xy_data.hst_mode) != CY_OK)) {
u8 host_reg, tries;
/* the TTSP device has suffered spurious reset or mode switch */
cyttsp_debug( \
"Spurious err opmode (tt_mode=%02X hst_mode=%02X)\n", \
g_xy_data.tt_mode, g_xy_data.hst_mode);
cyttsp_debug("Reset TTSP Device; Terminating active tracks\n");
/* terminate all active tracks */
cur_tch = CY_NTCH;
/* reset TTSP part and take it back out of Bootloader mode */
/* reset TTSP Device back to bootloader mode */
host_reg = CY_SOFT_RESET_MODE;
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete reset back to bootloader */
tries = 0;
do {
mdelay(1);
cyttsp_putbl(ts, 1, false, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
retval = cyttsp_putbl(ts, 1, true, true, true);
/* switch back to operational mode */
/* take TTSP device out of bootloader mode;
* switch back to TrueTouch operational mode */
if (!(retval < CY_OK)) {
int tries;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(bl_cmd), bl_cmd);
/* wait for TTSP Device to complete
* switch to Operational mode */
tries = 0;
do {
mdelay(100);
cyttsp_putbl(ts, 2, false, false, false);
} while (GET_BOOTLOADERMODE(g_bl_data.bl_status) &&
tries++ < 100);
cyttsp_putbl(ts, 2, true, false, false);
}
goto exit_xy_handler;
} else {
cur_tch = GET_NUM_TOUCHES(g_xy_data.tt_stat);
if (IS_LARGE_AREA(g_xy_data.tt_stat)) {
/* terminate all active tracks */
cur_tch = CY_NTCH;
cyttsp_debug("Large obj detect (tt_stat=0x%02X). Terminate act trks\n", \
g_xy_data.tt_stat);
} else if (cur_tch > CY_NUM_MT_TCH_ID) {
/* if the number of fingers on the touch surface
* is more than the maximum then
* there will be no new track information
* even for the original touches.
* Therefore, terminate all active tracks.
*/
cur_tch = CY_NTCH;
cyttsp_debug("Num touch err (tt_stat=0x%02X). Terminate act trks\n", \
g_xy_data.tt_stat);
}
}
/* set tool size */
curr_tool_width = CY_SMALL_TOOL_WIDTH;
/* translate Gen2 interface data into comparable Gen3 data */
if (ts->platform_data->gen == CY_GEN2) {
struct cyttsp_gen2_xydata_t *pxy_gen2_data;
pxy_gen2_data = (struct cyttsp_gen2_xydata_t *)(&g_xy_data);
/* use test data? */
cyttsp_testdat(&g_xy_data, &tt_gen2_testray, \
sizeof(struct cyttsp_gen3_xydata_t));
if (ts->platform_data->disable_ghost_det &&
(cur_tch == CY_GEN2_GHOST))
cur_tch = CY_GEN2_2TOUCH;
if (pxy_gen2_data->evnt_idx == CY_GEN2_NOTOUCH) {
cur_tch = 0;
} else if (cur_tch == CY_GEN2_GHOST) {
cur_tch = 0;
} else if (cur_tch == CY_GEN2_2TOUCH) {
/* stuff artificial track ID1 and ID2 */
g_xy_data.touch12_id = 0x12;
g_xy_data.z1 = CY_MAXZ;
g_xy_data.z2 = CY_MAXZ;
cur_tch--; /* 2 touches */
} else if (cur_tch == CY_GEN2_1TOUCH) {
/* stuff artificial track ID1 and ID2 */
g_xy_data.touch12_id = 0x12;
g_xy_data.z1 = CY_MAXZ;
g_xy_data.z2 = CY_NTCH;
if (pxy_gen2_data->evnt_idx == CY_GEN2_TOUCH2) {
/* push touch 2 data into touch1
* (first finger up; second finger down) */
/* stuff artificial track ID1 for touch2 info */
g_xy_data.touch12_id = 0x20;
/* stuff touch 1 with touch 2 coordinate data */
g_xy_data.x1 = g_xy_data.x2;
g_xy_data.y1 = g_xy_data.y2;
}
} else {
cur_tch = 0;
}
} else {
/* use test data? */
cyttsp_testdat(&g_xy_data, &tt_gen3_testray, \
sizeof(struct cyttsp_gen3_xydata_t));
}
/* clear current active track ID array and count previous touches */
for (id = 0, prv_tch = CY_NTCH;
id < CY_NUM_TRK_ID; id++) {
cur_trk[id] = CY_NTCH;
prv_tch += ts->act_trk[id];
}
/* send no events if no previous touches and no new touches */
if ((prv_tch == CY_NTCH) &&
((cur_tch == CY_NTCH) ||
(cur_tch > CY_NUM_MT_TCH_ID))) {
goto exit_xy_handler;
}
cyttsp_debug("prev=%d curr=%d\n", prv_tch, cur_tch);
for (id = 0; id < CY_NUM_ST_TCH_ID; id++) {
/* clear current single touches array */
cur_st_tch[id] = CY_IGNR_TCH;
}
/* clear single touch positions */
st_x1 = CY_NTCH;
st_y1 = CY_NTCH;
st_z1 = CY_NTCH;
st_x2 = CY_NTCH;
st_y2 = CY_NTCH;
st_z2 = CY_NTCH;
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
/* clear current multi-touches array and
* multi-touch positions/z */
cur_mt_tch[id] = CY_IGNR_TCH;
}
if (ts->platform_data->use_trk_id) {
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
cur_mt_pos[id][CY_XPOS] = 0;
cur_mt_pos[id][CY_YPOS] = 0;
cur_mt_z[id] = 0;
}
} else {
for (id = 0; id < CY_NUM_TRK_ID; id++) {
cur_mt_pos[id][CY_XPOS] = 0;
cur_mt_pos[id][CY_YPOS] = 0;
cur_mt_z[id] = 0;
}
}
/* Determine if display is tilted */
if (FLIP_DATA(ts->platform_data->flags))
tilt = true;
else
tilt = false;
/* Check for switch in origin */
if (REVERSE_X(ts->platform_data->flags))
rev_x = true;
else
rev_x = false;
if (REVERSE_Y(ts->platform_data->flags))
rev_y = true;
else
rev_y = false;
if (cur_tch) {
struct cyttsp_gen2_xydata_t *pxy_gen2_data;
struct cyttsp_gen3_xydata_t *pxy_gen3_data;
switch (ts->platform_data->gen) {
case CY_GEN2: {
pxy_gen2_data =
(struct cyttsp_gen2_xydata_t *)(&g_xy_data);
cyttsp_xdebug("TTSP Gen2 report:\n");
cyttsp_xdebug("%02X %02X %02X\n", \
pxy_gen2_data->hst_mode, \
pxy_gen2_data->tt_mode, \
pxy_gen2_data->tt_stat);
cyttsp_xdebug("%04X %04X %02X %02X\n", \
pxy_gen2_data->x1, \
pxy_gen2_data->y1, \
pxy_gen2_data->z1, \
pxy_gen2_data->evnt_idx);
cyttsp_xdebug("%04X %04X %02X\n", \
pxy_gen2_data->x2, \
pxy_gen2_data->y2, \
pxy_gen2_data->tt_undef1);
cyttsp_xdebug("%02X %02X %02X\n", \
pxy_gen2_data->gest_cnt, \
pxy_gen2_data->gest_id, \
pxy_gen2_data->gest_set);
break;
}
case CY_GEN3:
default: {
pxy_gen3_data =
(struct cyttsp_gen3_xydata_t *)(&g_xy_data);
cyttsp_xdebug("TTSP Gen3 report:\n");
cyttsp_xdebug("%02X %02X %02X\n", \
pxy_gen3_data->hst_mode,
pxy_gen3_data->tt_mode,
pxy_gen3_data->tt_stat);
cyttsp_xdebug("%04X %04X %02X %02X", \
pxy_gen3_data->x1,
pxy_gen3_data->y1,
pxy_gen3_data->z1, \
pxy_gen3_data->touch12_id);
cyttsp_xdebug("%04X %04X %02X\n", \
pxy_gen3_data->x2, \
pxy_gen3_data->y2, \
pxy_gen3_data->z2);
cyttsp_xdebug("%02X %02X %02X\n", \
pxy_gen3_data->gest_cnt, \
pxy_gen3_data->gest_id, \
pxy_gen3_data->gest_set);
cyttsp_xdebug("%04X %04X %02X %02X\n", \
pxy_gen3_data->x3, \
pxy_gen3_data->y3, \
pxy_gen3_data->z3, \
pxy_gen3_data->touch34_id);
cyttsp_xdebug("%04X %04X %02X\n", \
pxy_gen3_data->x4, \
pxy_gen3_data->y4, \
pxy_gen3_data->z4);
break;
}
}
}
/* process the touches */
switch (cur_tch) {
case 4: {
g_xy_data.x4 = be16_to_cpu(g_xy_data.x4);
g_xy_data.y4 = be16_to_cpu(g_xy_data.y4);
if (tilt)
FLIP_XY(g_xy_data.x4, g_xy_data.y4);
if (rev_x) {
val = INVERT_X(g_xy_data.x4,
ts->platform_data->panel_maxx);
if (val >= 0)
g_xy_data.x4 = val;
else
pr_debug("X value is negative. Please configure"
" maxx in platform data structure\n");
}
if (rev_y) {
val = INVERT_X(g_xy_data.y4,
ts->platform_data->panel_maxy);
if (val >= 0)
g_xy_data.y4 = val;
else
pr_debug("Y value is negative. Please configure"
" maxy in platform data structure\n");
}
id = GET_TOUCH4_ID(g_xy_data.touch34_id);
if (ts->platform_data->use_trk_id) {
cur_mt_pos[CY_MT_TCH4_IDX][CY_XPOS] =
g_xy_data.x4;
cur_mt_pos[CY_MT_TCH4_IDX][CY_YPOS] =
g_xy_data.y4;
cur_mt_z[CY_MT_TCH4_IDX] = g_xy_data.z4;
} else {
cur_mt_pos[id][CY_XPOS] = g_xy_data.x4;
cur_mt_pos[id][CY_YPOS] = g_xy_data.y4;
cur_mt_z[id] = g_xy_data.z4;
}
cur_mt_tch[CY_MT_TCH4_IDX] = id;
cur_trk[id] = CY_TCH;
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] <
CY_NUM_TRK_ID) {
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] == id) {
st_x1 = g_xy_data.x4;
st_y1 = g_xy_data.y4;
st_z1 = g_xy_data.z4;
cur_st_tch[CY_ST_FNGR1_IDX] = id;
} else if (ts->prv_st_tch[CY_ST_FNGR2_IDX] == id) {
st_x2 = g_xy_data.x4;
st_y2 = g_xy_data.y4;
st_z2 = g_xy_data.z4;
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
}
cyttsp_xdebug("4th XYZ:% 3d,% 3d,% 3d ID:% 2d\n\n", \
g_xy_data.x4, g_xy_data.y4, g_xy_data.z4, \
(g_xy_data.touch34_id & 0x0F));
/* do not break */
}
case 3: {
g_xy_data.x3 = be16_to_cpu(g_xy_data.x3);
g_xy_data.y3 = be16_to_cpu(g_xy_data.y3);
if (tilt)
FLIP_XY(g_xy_data.x3, g_xy_data.y3);
if (rev_x) {
val = INVERT_X(g_xy_data.x3,
ts->platform_data->panel_maxx);
if (val >= 0)
g_xy_data.x3 = val;
else
pr_debug("X value is negative. Please configure"
" maxx in platform data structure\n");
}
if (rev_y) {
val = INVERT_X(g_xy_data.y3,
ts->platform_data->panel_maxy);
if (val >= 0)
g_xy_data.y3 = val;
else
pr_debug("Y value is negative. Please configure"
" maxy in platform data structure\n");
}
id = GET_TOUCH3_ID(g_xy_data.touch34_id);
if (ts->platform_data->use_trk_id) {
cur_mt_pos[CY_MT_TCH3_IDX][CY_XPOS] =
g_xy_data.x3;
cur_mt_pos[CY_MT_TCH3_IDX][CY_YPOS] =
g_xy_data.y3;
cur_mt_z[CY_MT_TCH3_IDX] = g_xy_data.z3;
} else {
cur_mt_pos[id][CY_XPOS] = g_xy_data.x3;
cur_mt_pos[id][CY_YPOS] = g_xy_data.y3;
cur_mt_z[id] = g_xy_data.z3;
}
cur_mt_tch[CY_MT_TCH3_IDX] = id;
cur_trk[id] = CY_TCH;
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] <
CY_NUM_TRK_ID) {
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] == id) {
st_x1 = g_xy_data.x3;
st_y1 = g_xy_data.y3;
st_z1 = g_xy_data.z3;
cur_st_tch[CY_ST_FNGR1_IDX] = id;
} else if (ts->prv_st_tch[CY_ST_FNGR2_IDX] == id) {
st_x2 = g_xy_data.x3;
st_y2 = g_xy_data.y3;
st_z2 = g_xy_data.z3;
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
}
cyttsp_xdebug("3rd XYZ:% 3d,% 3d,% 3d ID:% 2d\n", \
g_xy_data.x3, g_xy_data.y3, g_xy_data.z3, \
((g_xy_data.touch34_id >> 4) & 0x0F));
/* do not break */
}
case 2: {
g_xy_data.x2 = be16_to_cpu(g_xy_data.x2);
g_xy_data.y2 = be16_to_cpu(g_xy_data.y2);
if (tilt)
FLIP_XY(g_xy_data.x2, g_xy_data.y2);
if (rev_x) {
val = INVERT_X(g_xy_data.x2,
ts->platform_data->panel_maxx);
if (val >= 0)
g_xy_data.x2 = val;
else
pr_debug("X value is negative. Please configure"
" maxx in platform data structure\n");
}
if (rev_y) {
val = INVERT_X(g_xy_data.y2,
ts->platform_data->panel_maxy);
if (val >= 0)
g_xy_data.y2 = val;
else
pr_debug("Y value is negative. Please configure"
" maxy in platform data structure\n");
}
id = GET_TOUCH2_ID(g_xy_data.touch12_id);
if (ts->platform_data->use_trk_id) {
cur_mt_pos[CY_MT_TCH2_IDX][CY_XPOS] =
g_xy_data.x2;
cur_mt_pos[CY_MT_TCH2_IDX][CY_YPOS] =
g_xy_data.y2;
cur_mt_z[CY_MT_TCH2_IDX] = g_xy_data.z2;
} else {
cur_mt_pos[id][CY_XPOS] = g_xy_data.x2;
cur_mt_pos[id][CY_YPOS] = g_xy_data.y2;
cur_mt_z[id] = g_xy_data.z2;
}
cur_mt_tch[CY_MT_TCH2_IDX] = id;
cur_trk[id] = CY_TCH;
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] <
CY_NUM_TRK_ID) {
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] == id) {
st_x1 = g_xy_data.x2;
st_y1 = g_xy_data.y2;
st_z1 = g_xy_data.z2;
cur_st_tch[CY_ST_FNGR1_IDX] = id;
} else if (ts->prv_st_tch[CY_ST_FNGR2_IDX] == id) {
st_x2 = g_xy_data.x2;
st_y2 = g_xy_data.y2;
st_z2 = g_xy_data.z2;
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
}
cyttsp_xdebug("2nd XYZ:% 3d,% 3d,% 3d ID:% 2d\n", \
g_xy_data.x2, g_xy_data.y2, g_xy_data.z2, \
(g_xy_data.touch12_id & 0x0F));
/* do not break */
}
case 1: {
g_xy_data.x1 = be16_to_cpu(g_xy_data.x1);
g_xy_data.y1 = be16_to_cpu(g_xy_data.y1);
if (tilt)
FLIP_XY(g_xy_data.x1, g_xy_data.y1);
if (rev_x) {
val = INVERT_X(g_xy_data.x1,
ts->platform_data->panel_maxx);
if (val >= 0)
g_xy_data.x1 = val;
else
pr_debug("X value is negative. Please configure"
" maxx in platform data structure\n");
}
if (rev_y) {
val = INVERT_X(g_xy_data.y1,
ts->platform_data->panel_maxy);
if (val >= 0)
g_xy_data.y1 = val;
else
pr_debug("Y value is negative. Please configure"
" maxy in platform data structure");
}
id = GET_TOUCH1_ID(g_xy_data.touch12_id);
if (ts->platform_data->use_trk_id) {
cur_mt_pos[CY_MT_TCH1_IDX][CY_XPOS] =
g_xy_data.x1;
cur_mt_pos[CY_MT_TCH1_IDX][CY_YPOS] =
g_xy_data.y1;
cur_mt_z[CY_MT_TCH1_IDX] = g_xy_data.z1;
} else {
cur_mt_pos[id][CY_XPOS] = g_xy_data.x1;
cur_mt_pos[id][CY_YPOS] = g_xy_data.y1;
cur_mt_z[id] = g_xy_data.z1;
}
cur_mt_tch[CY_MT_TCH1_IDX] = id;
cur_trk[id] = CY_TCH;
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] <
CY_NUM_TRK_ID) {
if (ts->prv_st_tch[CY_ST_FNGR1_IDX] == id) {
st_x1 = g_xy_data.x1;
st_y1 = g_xy_data.y1;
st_z1 = g_xy_data.z1;
cur_st_tch[CY_ST_FNGR1_IDX] = id;
} else if (ts->prv_st_tch[CY_ST_FNGR2_IDX] == id) {
st_x2 = g_xy_data.x1;
st_y2 = g_xy_data.y1;
st_z2 = g_xy_data.z1;
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
}
cyttsp_xdebug("1st XYZ:% 3d,% 3d,% 3d ID:% 2d\n", \
g_xy_data.x1, g_xy_data.y1, g_xy_data.z1, \
((g_xy_data.touch12_id >> 4) & 0x0F));
break;
}
case 0:
default:{
break;
}
}
/* handle Single Touch signals */
if (ts->platform_data->use_st) {
cyttsp_xdebug("ST STEP 0 - ST1 ID=%d ST2 ID=%d\n", \
cur_st_tch[CY_ST_FNGR1_IDX], \
cur_st_tch[CY_ST_FNGR2_IDX]);
if (cur_st_tch[CY_ST_FNGR1_IDX] > CY_NUM_TRK_ID) {
/* reassign finger 1 and 2 positions to new tracks */
if (cur_tch > 0) {
/* reassign st finger1 */
if (ts->platform_data->use_trk_id) {
id = CY_MT_TCH1_IDX;
cur_st_tch[CY_ST_FNGR1_IDX] = cur_mt_tch[id];
} else {
id = GET_TOUCH1_ID(g_xy_data.touch12_id);
cur_st_tch[CY_ST_FNGR1_IDX] = id;
}
st_x1 = cur_mt_pos[id][CY_XPOS];
st_y1 = cur_mt_pos[id][CY_YPOS];
st_z1 = cur_mt_z[id];
cyttsp_xdebug("ST STEP 1 - ST1 ID=%3d\n", \
cur_st_tch[CY_ST_FNGR1_IDX]);
if ((cur_tch > 1) &&
(cur_st_tch[CY_ST_FNGR2_IDX] >
CY_NUM_TRK_ID)) {
/* reassign st finger2 */
if (cur_tch > 1) {
if (ts->platform_data->use_trk_id) {
id = CY_MT_TCH2_IDX;
cur_st_tch[CY_ST_FNGR2_IDX] = cur_mt_tch[id];
} else {
id = GET_TOUCH2_ID(g_xy_data.touch12_id);
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
st_x2 = cur_mt_pos[id][CY_XPOS];
st_y2 = cur_mt_pos[id][CY_YPOS];
st_z2 = cur_mt_z[id];
cyttsp_xdebug("ST STEP 2 - ST2 ID=%3d\n", \
cur_st_tch[CY_ST_FNGR2_IDX]);
}
}
}
} else if (cur_st_tch[CY_ST_FNGR2_IDX] > CY_NUM_TRK_ID) {
if (cur_tch > 1) {
/* reassign st finger2 */
if (ts->platform_data->use_trk_id) {
/* reassign st finger2 */
id = CY_MT_TCH2_IDX;
cur_st_tch[CY_ST_FNGR2_IDX] =
cur_mt_tch[id];
} else {
/* reassign st finger2 */
id = GET_TOUCH2_ID(g_xy_data.touch12_id);
cur_st_tch[CY_ST_FNGR2_IDX] = id;
}
st_x2 = cur_mt_pos[id][CY_XPOS];
st_y2 = cur_mt_pos[id][CY_YPOS];
st_z2 = cur_mt_z[id];
cyttsp_xdebug("ST STEP 3 - ST2 ID=%3d\n", \
cur_st_tch[CY_ST_FNGR2_IDX]);
}
}
/* if the 1st touch is missing and there is a 2nd touch,
* then set the 1st touch to 2nd touch and terminate 2nd touch
*/
if ((cur_st_tch[CY_ST_FNGR1_IDX] > CY_NUM_TRK_ID) &&
(cur_st_tch[CY_ST_FNGR2_IDX] < CY_NUM_TRK_ID)) {
st_x1 = st_x2;
st_y1 = st_y2;
st_z1 = st_z2;
cur_st_tch[CY_ST_FNGR1_IDX] =
cur_st_tch[CY_ST_FNGR2_IDX];
cur_st_tch[CY_ST_FNGR2_IDX] =
CY_IGNR_TCH;
}
/* if the 2nd touch ends up equal to the 1st touch,
* then just report a single touch */
if (cur_st_tch[CY_ST_FNGR1_IDX] ==
cur_st_tch[CY_ST_FNGR2_IDX]) {
cur_st_tch[CY_ST_FNGR2_IDX] =
CY_IGNR_TCH;
}
/* set Single Touch current event signals */
if (cur_st_tch[CY_ST_FNGR1_IDX] < CY_NUM_TRK_ID) {
input_report_abs(ts->input,
ABS_X, st_x1);
input_report_abs(ts->input,
ABS_Y, st_y1);
input_report_abs(ts->input,
ABS_PRESSURE, st_z1);
input_report_key(ts->input,
BTN_TOUCH,
CY_TCH);
input_report_abs(ts->input,
ABS_TOOL_WIDTH,
curr_tool_width);
cyttsp_debug("ST->F1:%3d X:%3d Y:%3d Z:%3d\n", \
cur_st_tch[CY_ST_FNGR1_IDX], \
st_x1, st_y1, st_z1);
if (cur_st_tch[CY_ST_FNGR2_IDX] < CY_NUM_TRK_ID) {
input_report_key(ts->input, BTN_2, CY_TCH);
input_report_abs(ts->input, ABS_HAT0X, st_x2);
input_report_abs(ts->input, ABS_HAT0Y, st_y2);
cyttsp_debug("ST->F2:%3d X:%3d Y:%3d Z:%3d\n", \
cur_st_tch[CY_ST_FNGR2_IDX],
st_x2, st_y2, st_z2);
} else {
input_report_key(ts->input,
BTN_2,
CY_NTCH);
}
} else {
input_report_abs(ts->input, ABS_PRESSURE, CY_NTCH);
input_report_key(ts->input, BTN_TOUCH, CY_NTCH);
input_report_key(ts->input, BTN_2, CY_NTCH);
}
/* update platform data for the current single touch info */
ts->prv_st_tch[CY_ST_FNGR1_IDX] = cur_st_tch[CY_ST_FNGR1_IDX];
ts->prv_st_tch[CY_ST_FNGR2_IDX] = cur_st_tch[CY_ST_FNGR2_IDX];
}
/* handle Multi-touch signals */
if (ts->platform_data->use_mt) {
if (ts->platform_data->use_trk_id) {
/* terminate any previous touch where the track
* is missing from the current event */
for (id = 0; id < CY_NUM_TRK_ID; id++) {
if ((ts->act_trk[id] != CY_NTCH) &&
(cur_trk[id] == CY_NTCH)) {
input_report_abs(ts->input,
ABS_MT_TRACKING_ID,
id);
input_report_abs(ts->input,
ABS_MT_TOUCH_MAJOR,
CY_NTCH);
input_report_abs(ts->input,
ABS_MT_WIDTH_MAJOR,
curr_tool_width);
input_report_abs(ts->input,
ABS_MT_POSITION_X,
ts->prv_mt_pos[id][CY_XPOS]);
input_report_abs(ts->input,
ABS_MT_POSITION_Y,
ts->prv_mt_pos[id][CY_YPOS]);
CY_MT_SYNC(ts->input);
ts->act_trk[id] = CY_NTCH;
ts->prv_mt_pos[id][CY_XPOS] = 0;
ts->prv_mt_pos[id][CY_YPOS] = 0;
}
}
/* set Multi-Touch current event signals */
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
if (cur_mt_tch[id] < CY_NUM_TRK_ID) {
input_report_abs(ts->input,
ABS_MT_TRACKING_ID,
cur_mt_tch[id]);
input_report_abs(ts->input,
ABS_MT_TOUCH_MAJOR,
cur_mt_z[id]);
input_report_abs(ts->input,
ABS_MT_WIDTH_MAJOR,
curr_tool_width);
input_report_abs(ts->input,
ABS_MT_POSITION_X,
cur_mt_pos[id][CY_XPOS]);
input_report_abs(ts->input,
ABS_MT_POSITION_Y,
cur_mt_pos[id][CY_YPOS]);
CY_MT_SYNC(ts->input);
ts->act_trk[id] = CY_TCH;
ts->prv_mt_pos[id][CY_XPOS] =
cur_mt_pos[id][CY_XPOS];
ts->prv_mt_pos[id][CY_YPOS] =
cur_mt_pos[id][CY_YPOS];
}
}
} else {
/* set temporary track array elements to voids */
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
tmp_trk[id] = CY_IGNR_TCH;
snd_trk[id] = CY_IGNR_TCH;
}
/* get what is currently active */
for (i = 0, id = 0;
id < CY_NUM_TRK_ID && i < CY_NUM_MT_TCH_ID;
id++) {
if (cur_trk[id] == CY_TCH) {
/* only incr counter if track found */
tmp_trk[i] = id;
i++;
}
}
cyttsp_xdebug("T1: t0=%d, t1=%d, t2=%d, t3=%d\n", \
tmp_trk[0], tmp_trk[1], tmp_trk[2], \
tmp_trk[3]);
cyttsp_xdebug("T1: p0=%d, p1=%d, p2=%d, p3=%d\n", \
ts->prv_mt_tch[0], ts->prv_mt_tch[1], \
ts->prv_mt_tch[2], ts->prv_mt_tch[3]);
/* pack in still active previous touches */
for (id = 0, prv_tch = 0;
id < CY_NUM_MT_TCH_ID; id++) {
if (tmp_trk[id] < CY_NUM_TRK_ID) {
if (cyttsp_inlist(ts->prv_mt_tch,
tmp_trk[id], &loc,
CY_NUM_MT_TCH_ID)) {
loc &= CY_NUM_MT_TCH_ID - 1;
snd_trk[loc] = tmp_trk[id];
prv_tch++;
cyttsp_xdebug("inlist s[%d]=%d t[%d]=%d l=%d p=%d\n", \
loc, snd_trk[loc], \
id, tmp_trk[id], \
loc, prv_tch);
} else {
cyttsp_xdebug("not inlist s[%d]=%d t[%d]=%d l=%d \n", \
id, snd_trk[id], \
id, tmp_trk[id], \
loc);
}
}
}
cyttsp_xdebug("S1: s0=%d, s1=%d, s2=%d, s3=%d p=%d\n", \
snd_trk[0], snd_trk[1], snd_trk[2], \
snd_trk[3], prv_tch);
/* pack in new touches */
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
if (tmp_trk[id] < CY_NUM_TRK_ID) {
if (!cyttsp_inlist(snd_trk, tmp_trk[id], &loc, CY_NUM_MT_TCH_ID)) {
cyttsp_xdebug("not inlist t[%d]=%d l=%d\n", \
id, tmp_trk[id], loc);
if (cyttsp_next_avail_inlist(snd_trk, &loc, CY_NUM_MT_TCH_ID)) {
loc &= CY_NUM_MT_TCH_ID - 1;
snd_trk[loc] = tmp_trk[id];
cyttsp_xdebug("put inlist s[%d]=%d t[%d]=%d\n",
loc, snd_trk[loc], id, tmp_trk[id]);
}
} else {
cyttsp_xdebug("is in list s[%d]=%d t[%d]=%d loc=%d\n", \
id, snd_trk[id], id, tmp_trk[id], loc);
}
}
}
cyttsp_xdebug("S2: s0=%d, s1=%d, s2=%d, s3=%d\n", \
snd_trk[0], snd_trk[1],
snd_trk[2], snd_trk[3]);
/* sync motion event signals for each current touch */
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
/* z will either be 0 (NOTOUCH) or
* some pressure (TOUCH) */
cyttsp_xdebug("MT0 prev[%d]=%d temp[%d]=%d send[%d]=%d\n", \
id, ts->prv_mt_tch[id], \
id, tmp_trk[id], \
id, snd_trk[id]);
if (snd_trk[id] < CY_NUM_TRK_ID) {
input_report_abs(ts->input,
ABS_MT_TOUCH_MAJOR,
cur_mt_z[snd_trk[id]]);
input_report_abs(ts->input,
ABS_MT_WIDTH_MAJOR,
curr_tool_width);
input_report_abs(ts->input,
ABS_MT_POSITION_X,
cur_mt_pos[snd_trk[id]][CY_XPOS]);
input_report_abs(ts->input,
ABS_MT_POSITION_Y,
cur_mt_pos[snd_trk[id]][CY_YPOS]);
CY_MT_SYNC(ts->input);
cyttsp_debug("MT1->TID:%2d X:%3d Y:%3d Z:%3d touch-sent\n", \
snd_trk[id], \
cur_mt_pos[snd_trk[id]][CY_XPOS], \
cur_mt_pos[snd_trk[id]][CY_YPOS], \
cur_mt_z[snd_trk[id]]);
} else if (ts->prv_mt_tch[id] < CY_NUM_TRK_ID) {
/* void out this touch */
input_report_abs(ts->input,
ABS_MT_TOUCH_MAJOR,
CY_NTCH);
input_report_abs(ts->input,
ABS_MT_WIDTH_MAJOR,
curr_tool_width);
input_report_abs(ts->input,
ABS_MT_POSITION_X,
ts->prv_mt_pos[ts->prv_mt_tch[id]][CY_XPOS]);
input_report_abs(ts->input,
ABS_MT_POSITION_Y,
ts->prv_mt_pos[ts->prv_mt_tch[id]][CY_YPOS]);
CY_MT_SYNC(ts->input);
cyttsp_debug("MT2->TID:%2d X:%3d Y:%3d Z:%3d lift off-sent\n", \
ts->prv_mt_tch[id], \
ts->prv_mt_pos[ts->prv_mt_tch[id]][CY_XPOS], \
ts->prv_mt_pos[ts->prv_mt_tch[id]][CY_YPOS], \
CY_NTCH);
} else {
/* do not stuff any signals for this
* previously and currently
* void touches */
cyttsp_xdebug("MT3->send[%d]=%d - No touch - NOT sent\n", \
id, snd_trk[id]);
}
}
/* save current posted tracks to
* previous track memory */
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
ts->prv_mt_tch[id] = snd_trk[id];
if (snd_trk[id] < CY_NUM_TRK_ID) {
ts->prv_mt_pos[snd_trk[id]][CY_XPOS] =
cur_mt_pos[snd_trk[id]][CY_XPOS];
ts->prv_mt_pos[snd_trk[id]][CY_YPOS] =
cur_mt_pos[snd_trk[id]][CY_YPOS];
cyttsp_xdebug("MT4->TID:%2d X:%3d Y:%3d Z:%3d save for previous\n", \
snd_trk[id], \
ts->prv_mt_pos[snd_trk[id]][CY_XPOS], \
ts->prv_mt_pos[snd_trk[id]][CY_YPOS], \
CY_NTCH);
}
}
for (id = 0; id < CY_NUM_TRK_ID; id++)
ts->act_trk[id] = CY_NTCH;
for (id = 0; id < CY_NUM_MT_TCH_ID; id++) {
if (snd_trk[id] < CY_NUM_TRK_ID)
ts->act_trk[snd_trk[id]] = CY_TCH;
}
}
}
/* handle gestures */
if (ts->platform_data->use_gestures) {
if (g_xy_data.gest_id) {
input_report_key(ts->input,
BTN_3, CY_TCH);
input_report_abs(ts->input,
ABS_HAT1X, g_xy_data.gest_id);
input_report_abs(ts->input,
ABS_HAT2Y, g_xy_data.gest_cnt);
}
}
/* signal the view motion event */
input_sync(ts->input);
for (id = 0; id < CY_NUM_TRK_ID; id++) {
/* update platform data for the current MT information */
ts->act_trk[id] = cur_trk[id];
}
exit_xy_handler:
/* restart event timer */
if (ts->client->irq == 0)
mod_timer(&ts->timer, jiffies + TOUCHSCREEN_TIMEOUT);
return;
}
static int cyttsp_inlist(u16 prev_track[], u8 cur_trk_id,
u8 *prev_loc, u8 num_touches)
{
u8 id = 0;
*prev_loc = CY_IGNR_TCH;
cyttsp_xdebug("IN p[%d]=%d c=%d n=%d loc=%d\n", \
id, prev_track[id], cur_trk_id, \
num_touches, *prev_loc);
for (id = 0, *prev_loc = CY_IGNR_TCH;
(id < num_touches); id++) {
cyttsp_xdebug("p[%d]=%d c=%d n=%d loc=%d\n", \
id, prev_track[id], cur_trk_id, \
num_touches, *prev_loc);
if (prev_track[id] == cur_trk_id) {
*prev_loc = id;
break;
}
}
cyttsp_xdebug("OUT p[%d]=%d c=%d n=%d loc=%d\n", \
id, prev_track[id], cur_trk_id, num_touches, *prev_loc);
return ((*prev_loc < CY_NUM_TRK_ID) ? true : false);
}
static int cyttsp_next_avail_inlist(u16 cur_trk[],
u8 *new_loc, u8 num_touches)
{
u8 id;
for (id = 0, *new_loc = CY_IGNR_TCH;
(id < num_touches); id++) {
if (cur_trk[id] > CY_NUM_TRK_ID) {
*new_loc = id;
break;
}
}
return ((*new_loc < CY_NUM_TRK_ID) ? true : false);
}
/* Timer function used as dummy interrupt driver */
static void cyttsp_timer(unsigned long handle)
{
struct cyttsp *ts = (struct cyttsp *) handle;
cyttsp_xdebug("TTSP Device timer event\n");
/* schedule motion signal handling */
cyttsp_xy_handler(ts);
return;
}
/* ************************************************************************
* ISR function. This function is general, initialized in drivers init
* function
* ************************************************************************ */
static irqreturn_t cyttsp_irq(int irq, void *handle)
{
struct cyttsp *ts = (struct cyttsp *) handle;
cyttsp_xdebug("%s: Got IRQ\n", CY_I2C_NAME);
cyttsp_xy_handler(ts);
return IRQ_HANDLED;
}
/* ************************************************************************
* Probe initialization functions
* ************************************************************************ */
static int cyttsp_putbl(struct cyttsp *ts, int show,
int show_status, int show_version, int show_cid)
{
int retval = CY_OK;
int num_bytes = (show_status * 3) + (show_version * 6) + (show_cid * 3);
if (show_cid)
num_bytes = sizeof(struct cyttsp_bootloader_data_t);
else if (show_version)
num_bytes = sizeof(struct cyttsp_bootloader_data_t) - 3;
else
num_bytes = sizeof(struct cyttsp_bootloader_data_t) - 9;
if (show) {
retval = i2c_smbus_read_i2c_block_data(ts->client,
CY_REG_BASE, num_bytes, (u8 *)&g_bl_data);
if (show_status) {
cyttsp_debug("BL%d: f=%02X s=%02X err=%02X bl=%02X%02X bld=%02X%02X\n", \
show, \
g_bl_data.bl_file, \
g_bl_data.bl_status, \
g_bl_data.bl_error, \
g_bl_data.blver_hi, g_bl_data.blver_lo, \
g_bl_data.bld_blver_hi, g_bl_data.bld_blver_lo);
}
if (show_version) {
cyttsp_debug("BL%d: ttspver=0x%02X%02X appid=0x%02X%02X appver=0x%02X%02X\n", \
show, \
g_bl_data.ttspver_hi, g_bl_data.ttspver_lo, \
g_bl_data.appid_hi, g_bl_data.appid_lo, \
g_bl_data.appver_hi, g_bl_data.appver_lo);
}
if (show_cid) {
cyttsp_debug("BL%d: cid=0x%02X%02X%02X\n", \
show, \
g_bl_data.cid_0, \
g_bl_data.cid_1, \
g_bl_data.cid_2);
}
}
return retval;
}
#ifdef CY_INCLUDE_LOAD_FILE
#define CY_MAX_I2C_LEN 256
#define CY_MAX_TRY 10
#define CY_BL_PAGE_SIZE 16
#define CY_BL_NUM_PAGES 5
static int cyttsp_i2c_wr_blk_chunks(struct cyttsp *ts, u8 command,
u8 length, const u8 *values)
{
int retval = CY_OK;
int block = 1;
u8 dataray[CY_MAX_I2C_LEN];
/* first page already includes the bl page offset */
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
CY_BL_PAGE_SIZE+1, values);
values += CY_BL_PAGE_SIZE+1;
length -= CY_BL_PAGE_SIZE+1;
/* rem blocks require bl page offset stuffing */
while (length &&
(block < CY_BL_NUM_PAGES) &&
!(retval < CY_OK)) {
udelay(43*2); /* TRM * 2 */
dataray[0] = CY_BL_PAGE_SIZE*block;
memcpy(&dataray[1], values,
length >= CY_BL_PAGE_SIZE ?
CY_BL_PAGE_SIZE : length);
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
length >= CY_BL_PAGE_SIZE ?
CY_BL_PAGE_SIZE + 1 : length+1, dataray);
values += CY_BL_PAGE_SIZE;
length = length >= CY_BL_PAGE_SIZE ?
length - CY_BL_PAGE_SIZE : 0;
block++;
}
return retval;
}
static int cyttsp_bootload_app(struct cyttsp *ts)
{
int retval = CY_OK;
int i, tries;
u8 host_reg;
cyttsp_debug("load new firmware \n");
/* reset TTSP Device back to bootloader mode */
host_reg = CY_SOFT_RESET_MODE;
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete reset back to bootloader */
tries = 0;
do {
mdelay(1);
cyttsp_putbl(ts, 3, false, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
cyttsp_debug("load file - tver=0x%02X%02X a_id=0x%02X%02X aver=0x%02X%02X\n", \
cyttsp_fw_tts_verh, cyttsp_fw_tts_verl, \
cyttsp_fw_app_idh, cyttsp_fw_app_idl, \
cyttsp_fw_app_verh, cyttsp_fw_app_verl);
/* download new TTSP Application to the Bootloader */
if (!(retval < CY_OK)) {
i = 0;
/* send bootload initiation command */
if (cyttsp_fw[i].Command == CY_BL_INIT_LOAD) {
g_bl_data.bl_file = 0;
g_bl_data.bl_status = 0;
g_bl_data.bl_error = 0;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
cyttsp_fw[i].Length, cyttsp_fw[i].Block);
/* delay to allow bl to get ready for block writes */
i++;
tries = 0;
do {
mdelay(100);
cyttsp_putbl(ts, 4, false, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
cyttsp_debug("wait init f=%02X, s=%02X, e=%02X t=%d\n", \
g_bl_data.bl_file, g_bl_data.bl_status, \
g_bl_data.bl_error, tries);
/* send bootload firmware load blocks */
if (!(retval < CY_OK)) {
while (cyttsp_fw[i].Command == CY_BL_WRITE_BLK) {
retval = cyttsp_i2c_wr_blk_chunks(ts,
CY_REG_BASE,
cyttsp_fw[i].Length,
cyttsp_fw[i].Block);
cyttsp_xdebug("BL DNLD Rec=% 3d Len=% 3d Addr=%04X\n", \
cyttsp_fw[i].Record, \
cyttsp_fw[i].Length, \
cyttsp_fw[i].Address);
i++;
if (retval < CY_OK) {
cyttsp_debug("BL fail Rec=%3d retval=%d\n", \
cyttsp_fw[i-1].Record, \
retval);
break;
} else {
tries = 0;
cyttsp_putbl(ts, 5, false, false, false);
while (!((g_bl_data.bl_status == 0x10) &&
(g_bl_data.bl_error == 0x20)) &&
!((g_bl_data.bl_status == 0x11) &&
(g_bl_data.bl_error == 0x20)) &&
(tries++ < 100)) {
mdelay(1);
cyttsp_putbl(ts, 5, false, false, false);
}
}
}
if (!(retval < CY_OK)) {
while (i < cyttsp_fw_records) {
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
cyttsp_fw[i].Length,
cyttsp_fw[i].Block);
i++;
tries = 0;
do {
mdelay(100);
cyttsp_putbl(ts, 6, true, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
cyttsp_debug("wait term f=%02X, s=%02X, e=%02X t=%d\n", \
g_bl_data.bl_file, \
g_bl_data.bl_status, \
g_bl_data.bl_error, \
tries);
if (retval < CY_OK)
break;
}
}
}
}
}
/* reset TTSP Device back to bootloader mode */
host_reg = CY_SOFT_RESET_MODE;
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete reset back to bootloader */
tries = 0;
do {
mdelay(1);
cyttsp_putbl(ts, 3, false, false, false);
} while (g_bl_data.bl_status != 0x10 &&
g_bl_data.bl_status != 0x11 &&
tries++ < 100);
/* set arg2 to non-0 to activate */
retval = cyttsp_putbl(ts, 8, true, true, true);
return retval;
}
#else
static int cyttsp_bootload_app(struct cyttsp *ts)
{
cyttsp_debug("no-load new firmware \n");
return CY_OK;
}
#endif /* CY_INCLUDE_LOAD_FILE */
static int cyttsp_power_on(struct cyttsp *ts)
{
int retval = CY_OK;
u8 host_reg;
int tries;
cyttsp_debug("Power up \n");
/* check if the TTSP device has a bootloader installed */
host_reg = CY_SOFT_RESET_MODE;
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
sizeof(host_reg), &host_reg);
tries = 0;
do {
mdelay(1);
/* set arg2 to non-0 to activate */
retval = cyttsp_putbl(ts, 1, true, true, true);
cyttsp_info("BL%d: f=%02X s=%02X err=%02X bl=%02X%02X bld=%02X%02X R=%d\n", \
101, \
g_bl_data.bl_file, g_bl_data.bl_status, \
g_bl_data.bl_error, \
g_bl_data.blver_hi, g_bl_data.blver_lo, \
g_bl_data.bld_blver_hi, g_bl_data.bld_blver_lo,
retval);
cyttsp_info("BL%d: tver=%02X%02X a_id=%02X%02X aver=%02X%02X\n", \
102, \
g_bl_data.ttspver_hi, g_bl_data.ttspver_lo, \
g_bl_data.appid_hi, g_bl_data.appid_lo, \
g_bl_data.appver_hi, g_bl_data.appver_lo);
cyttsp_info("BL%d: c_id=%02X%02X%02X\n", \
103, \
g_bl_data.cid_0, g_bl_data.cid_1, g_bl_data.cid_2);
} while (!(retval < CY_OK) &&
!GET_BOOTLOADERMODE(g_bl_data.bl_status) &&
!(g_bl_data.bl_file == CY_OP_MODE + CY_LOW_PWR_MODE) &&
tries++ < 100);
/* is bootloader missing? */
if (!(retval < CY_OK)) {
cyttsp_xdebug("Ret=%d Check if bootloader is missing...\n", \
retval);
if (!GET_BOOTLOADERMODE(g_bl_data.bl_status)) {
/* skip all bl and sys info and go to op mode */
if (!(retval < CY_OK)) {
cyttsp_xdebug("Bl is missing (ret=%d)\n", \
retval);
host_reg = CY_OP_MODE/* + CY_LOW_PWR_MODE*/;
retval = i2c_smbus_write_i2c_block_data(ts->client, CY_REG_BASE,
sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete switch to
* Operational mode */
mdelay(1000);
goto bypass;
}
}
}
/* take TTSP out of bootloader mode; go to TrueTouch operational mode */
if (!(retval < CY_OK)) {
cyttsp_xdebug1("exit bootloader; go operational\n");
tries = 0;
do {
msleep(100);
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(bl_cmd), bl_cmd);
if (retval == CY_OK)
break;
} while (tries++ < 5);
if (retval == CY_OK) {
tries = 0;
do {
msleep(100);
cyttsp_putbl(ts, 4, true, false, false);
cyttsp_info("BL%d: f=%02X s=%02X err=%02X" \
"bl=%02X%02X bld=%02X%02X\n", 104, \
g_bl_data.bl_file, \
g_bl_data.bl_status, \
g_bl_data.bl_error, \
g_bl_data.blver_hi, \
g_bl_data.blver_lo, \
g_bl_data.bld_blver_hi, \
g_bl_data.bld_blver_lo);
} while (GET_BOOTLOADERMODE(g_bl_data.bl_status) &&
tries++ < 5);
}
}
if (!(retval < CY_OK) &&
cyttsp_app_load()) {
if (CY_DIFF(g_bl_data.ttspver_hi, cyttsp_tts_verh()) ||
CY_DIFF(g_bl_data.ttspver_lo, cyttsp_tts_verl()) ||
CY_DIFF(g_bl_data.appid_hi, cyttsp_app_idh()) ||
CY_DIFF(g_bl_data.appid_lo, cyttsp_app_idl()) ||
CY_DIFF(g_bl_data.appver_hi, cyttsp_app_verh()) ||
CY_DIFF(g_bl_data.appver_lo, cyttsp_app_verl()) ||
CY_DIFF(g_bl_data.cid_0, cyttsp_cid_0()) ||
CY_DIFF(g_bl_data.cid_1, cyttsp_cid_1()) ||
CY_DIFF(g_bl_data.cid_2, cyttsp_cid_2()) ||
cyttsp_force_fw_load()) {
cyttsp_debug("blttsp=0x%02X%02X flttsp=0x%02X%02X force=%d\n", \
g_bl_data.ttspver_hi, g_bl_data.ttspver_lo, \
cyttsp_tts_verh(), cyttsp_tts_verl(), \
cyttsp_force_fw_load());
cyttsp_debug("blappid=0x%02X%02X flappid=0x%02X%02X\n", \
g_bl_data.appid_hi, g_bl_data.appid_lo, \
cyttsp_app_idh(), cyttsp_app_idl());
cyttsp_debug("blappver=0x%02X%02X flappver=0x%02X%02X\n", \
g_bl_data.appver_hi, g_bl_data.appver_lo, \
cyttsp_app_verh(), cyttsp_app_verl());
cyttsp_debug("blcid=0x%02X%02X%02X flcid=0x%02X%02X%02X\n", \
g_bl_data.cid_0, \
g_bl_data.cid_1, \
g_bl_data.cid_2, \
cyttsp_cid_0(), \
cyttsp_cid_1(), \
cyttsp_cid_2());
/* enter bootloader to load new app into TTSP Device */
retval = cyttsp_bootload_app(ts);
/* take TTSP device out of bootloader mode;
* switch back to TrueTouch operational mode */
if (!(retval < CY_OK)) {
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(bl_cmd), bl_cmd);
/* wait for TTSP Device to complete
* switch to Operational mode */
tries = 0;
do {
mdelay(100);
cyttsp_putbl(ts, 9, false, false, false);
} while (GET_BOOTLOADERMODE(g_bl_data.bl_status) &&
tries++ < 100);
cyttsp_putbl(ts, 9, true, false, false);
}
}
}
bypass:
/* switch to System Information mode to read versions
* and set interval registers */
if (!(retval < CY_OK)) {
cyttsp_debug("switch to sysinfo mode \n");
host_reg = CY_SYSINFO_MODE;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE, sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete switch to SysInfo mode */
mdelay(100);
if (!(retval < CY_OK)) {
retval = i2c_smbus_read_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(struct cyttsp_sysinfo_data_t),
(u8 *)&g_sysinfo_data);
cyttsp_debug("SI2: hst_mode=0x%02X mfg_cmd=0x%02X mfg_stat=0x%02X\n", \
g_sysinfo_data.hst_mode, \
g_sysinfo_data.mfg_cmd, \
g_sysinfo_data.mfg_stat);
cyttsp_debug("SI2: bl_ver=0x%02X%02X\n", \
g_sysinfo_data.bl_verh, \
g_sysinfo_data.bl_verl);
cyttsp_debug("SI2: sysinfo act_int=0x%02X tch_tmout=0x%02X lp_int=0x%02X\n", \
g_sysinfo_data.act_intrvl, \
g_sysinfo_data.tch_tmout, \
g_sysinfo_data.lp_intrvl);
cyttsp_info("SI%d: tver=%02X%02X a_id=%02X%02X aver=%02X%02X\n", \
102, \
g_sysinfo_data.tts_verh, \
g_sysinfo_data.tts_verl, \
g_sysinfo_data.app_idh, \
g_sysinfo_data.app_idl, \
g_sysinfo_data.app_verh, \
g_sysinfo_data.app_verl);
cyttsp_info("SI%d: c_id=%02X%02X%02X\n", \
103, \
g_sysinfo_data.cid[0], \
g_sysinfo_data.cid[1], \
g_sysinfo_data.cid[2]);
if (!(retval < CY_OK) &&
(CY_DIFF(ts->platform_data->act_intrvl,
CY_ACT_INTRVL_DFLT) ||
CY_DIFF(ts->platform_data->tch_tmout,
CY_TCH_TMOUT_DFLT) ||
CY_DIFF(ts->platform_data->lp_intrvl,
CY_LP_INTRVL_DFLT))) {
if (!(retval < CY_OK)) {
u8 intrvl_ray[sizeof(ts->platform_data->act_intrvl) +
sizeof(ts->platform_data->tch_tmout) +
sizeof(ts->platform_data->lp_intrvl)];
u8 i = 0;
intrvl_ray[i++] =
ts->platform_data->act_intrvl;
intrvl_ray[i++] =
ts->platform_data->tch_tmout;
intrvl_ray[i++] =
ts->platform_data->lp_intrvl;
cyttsp_debug("SI2: platinfo act_intrvl=0x%02X tch_tmout=0x%02X lp_intrvl=0x%02X\n", \
ts->platform_data->act_intrvl, \
ts->platform_data->tch_tmout, \
ts->platform_data->lp_intrvl);
/* set intrvl registers */
retval = i2c_smbus_write_i2c_block_data(
ts->client,
CY_REG_ACT_INTRVL,
sizeof(intrvl_ray), intrvl_ray);
mdelay(CY_DLY_SYSINFO);
}
}
}
/* switch back to Operational mode */
cyttsp_debug("switch back to operational mode \n");
if (!(retval < CY_OK)) {
host_reg = CY_OP_MODE/* + CY_LOW_PWR_MODE*/;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(host_reg), &host_reg);
/* wait for TTSP Device to complete
* switch to Operational mode */
mdelay(100);
}
}
/* init gesture setup;
* this is required even if not using gestures
* in order to set the active distance */
if (!(retval < CY_OK)) {
u8 gesture_setup;
cyttsp_debug("init gesture setup \n");
gesture_setup = ts->platform_data->gest_set;
retval = i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_GEST_SET,
sizeof(gesture_setup), &gesture_setup);
mdelay(CY_DLY_DFLT);
}
if (!(retval < CY_OK))
ts->platform_data->power_state = CY_ACTIVE_STATE;
else
ts->platform_data->power_state = CY_IDLE_STATE;
cyttsp_debug("Retval=%d Power state is %s\n", \
retval, \
ts->platform_data->power_state == CY_ACTIVE_STATE ? \
"ACTIVE" : "IDLE");
return retval;
}
static int cyttsp_power_device(struct cyttsp *ts, bool on)
{
int rc = 0, i;
const struct cyttsp_regulator *reg_info =
ts->platform_data->regulator_info;
u8 num_reg = ts->platform_data->num_regulators;
if (!reg_info) {
pr_err("regulator pdata not specified\n");
return -EINVAL;
}
if (on == false) /* Turn off the regulators */
goto ts_reg_disable;
ts->vdd = kzalloc(num_reg * sizeof(struct regulator *), GFP_KERNEL);
if (!ts->vdd) {
pr_err("unable to allocate memory\n");
return -ENOMEM;
}
for (i = 0; i < num_reg; i++) {
ts->vdd[i] = regulator_get(&ts->client->dev, reg_info[i].name);
if (IS_ERR(ts->vdd[i])) {
rc = PTR_ERR(ts->vdd[i]);
pr_err("%s:regulator get failed rc=%d\n",
__func__, rc);
goto error_vdd;
}
if (regulator_count_voltages(ts->vdd[i]) > 0) {
rc = regulator_set_voltage(ts->vdd[i],
reg_info[i].min_uV, reg_info[i].max_uV);
if (rc) {
pr_err("%s: regulator_set_voltage"
"failed rc =%d\n", __func__, rc);
regulator_put(ts->vdd[i]);
goto error_vdd;
}
}
rc = regulator_set_optimum_mode(ts->vdd[i],
reg_info[i].hpm_load_uA);
if (rc < 0) {
pr_err("%s: regulator_set_optimum_mode failed rc=%d\n",
__func__, rc);
regulator_set_voltage(ts->vdd[i], 0,
reg_info[i].max_uV);
regulator_put(ts->vdd[i]);
goto error_vdd;
}
rc = regulator_enable(ts->vdd[i]);
if (rc) {
pr_err("%s: regulator_enable failed rc =%d\n",
__func__, rc);
regulator_set_optimum_mode(ts->vdd[i], 0);
regulator_set_voltage(ts->vdd[i], 0,
reg_info[i].max_uV);
regulator_put(ts->vdd[i]);
goto error_vdd;
}
}
return rc;
ts_reg_disable:
i = ts->platform_data->num_regulators;
error_vdd:
while (--i >= 0) {
if (regulator_count_voltages(ts->vdd[i]) > 0)
regulator_set_voltage(ts->vdd[i], 0,
reg_info[i].max_uV);
regulator_set_optimum_mode(ts->vdd[i], 0);
regulator_disable(ts->vdd[i]);
regulator_put(ts->vdd[i]);
}
kfree(ts->vdd);
return rc;
}
/* cyttsp_initialize: Driver Initialization. This function takes
* care of the following tasks:
* 1. Create and register an input device with input layer
* 2. Take CYTTSP device out of bootloader mode; go operational
* 3. Start any timers/Work queues. */
static int cyttsp_initialize(struct i2c_client *client, struct cyttsp *ts)
{
struct input_dev *input_device;
int error = 0;
int retval = CY_OK;
u8 id;
/* Create the input device and register it. */
input_device = input_allocate_device();
if (!input_device) {
error = -ENOMEM;
cyttsp_xdebug1("err input allocate device\n");
goto error_free_device;
}
if (!client) {
error = ~ENODEV;
cyttsp_xdebug1("err client is Null\n");
goto error_free_device;
}
if (!ts) {
error = ~ENODEV;
cyttsp_xdebug1("err context is Null\n");
goto error_free_device;
}
ts->input = input_device;
input_device->name = CY_I2C_NAME;
input_device->phys = ts->phys;
input_device->dev.parent = &client->dev;
/* init the touch structures */
ts->num_prv_st_tch = CY_NTCH;
for (id = 0; id < CY_NUM_TRK_ID; id++) {
ts->act_trk[id] = CY_NTCH;
ts->prv_mt_pos[id][CY_XPOS] = 0;
ts->prv_mt_pos[id][CY_YPOS] = 0;
}
for (id = 0; id < CY_NUM_MT_TCH_ID; id++)
ts->prv_mt_tch[id] = CY_IGNR_TCH;
for (id = 0; id < CY_NUM_ST_TCH_ID; id++)
ts->prv_st_tch[id] = CY_IGNR_TCH;
set_bit(EV_SYN, input_device->evbit);
set_bit(EV_KEY, input_device->evbit);
set_bit(EV_ABS, input_device->evbit);
set_bit(BTN_TOUCH, input_device->keybit);
set_bit(BTN_2, input_device->keybit);
if (ts->platform_data->use_gestures)
set_bit(BTN_3, input_device->keybit);
input_set_abs_params(input_device, ABS_X, ts->platform_data->disp_minx,
ts->platform_data->disp_maxx, 0, 0);
input_set_abs_params(input_device, ABS_Y, ts->platform_data->disp_miny,
ts->platform_data->disp_maxy, 0, 0);
input_set_abs_params(input_device,
ABS_TOOL_WIDTH, 0, CY_LARGE_TOOL_WIDTH, 0 , 0);
input_set_abs_params(input_device,
ABS_PRESSURE, 0, CY_MAXZ, 0, 0);
input_set_abs_params(input_device,
ABS_HAT0X, 0, ts->platform_data->panel_maxx, 0, 0);
input_set_abs_params(input_device,
ABS_HAT0Y, 0, ts->platform_data->panel_maxy, 0, 0);
if (ts->platform_data->use_gestures) {
input_set_abs_params(input_device,
ABS_HAT1X, 0, CY_MAXZ, 0, 0);
input_set_abs_params(input_device,
ABS_HAT1Y, 0, CY_MAXZ, 0, 0);
}
if (ts->platform_data->use_mt) {
input_set_abs_params(input_device, ABS_MT_POSITION_X,
ts->platform_data->disp_minx,
ts->platform_data->disp_maxx, 0, 0);
input_set_abs_params(input_device, ABS_MT_POSITION_Y,
ts->platform_data->disp_miny,
ts->platform_data->disp_maxy, 0, 0);
input_set_abs_params(input_device,
ABS_MT_TOUCH_MAJOR, 0, CY_MAXZ, 0, 0);
input_set_abs_params(input_device,
ABS_MT_WIDTH_MAJOR, 0, CY_LARGE_TOOL_WIDTH, 0, 0);
if (ts->platform_data->use_trk_id) {
input_set_abs_params(input_device,
ABS_MT_TRACKING_ID, 0, CY_NUM_TRK_ID, 0, 0);
}
}
/* set dummy key to make driver work with virtual keys */
input_set_capability(input_device, EV_KEY, KEY_PROG1);
cyttsp_info("%s: Register input device\n", CY_I2C_NAME);
error = input_register_device(input_device);
if (error) {
cyttsp_alert("%s: Failed to register input device\n", \
CY_I2C_NAME);
retval = error;
goto error_free_device;
}
if (gpio_is_valid(ts->platform_data->resout_gpio)) {
/* configure touchscreen reset out gpio */
retval = gpio_request(ts->platform_data->resout_gpio,
"cyttsp_resout_gpio");
if (retval) {
pr_err("%s: unable to request reset gpio %d\n",
__func__, ts->platform_data->resout_gpio);
goto error_free_device;
}
retval = gpio_direction_output(
ts->platform_data->resout_gpio, 1);
if (retval) {
pr_err("%s: unable to set direction for gpio %d\n",
__func__, ts->platform_data->resout_gpio);
goto error_resout_gpio_dir;
}
}
if (gpio_is_valid(ts->platform_data->sleep_gpio)) {
/* configure touchscreen reset out gpio */
retval = gpio_request(ts->platform_data->sleep_gpio,
"cy8c_sleep_gpio");
if (retval) {
pr_err("%s: unable to request sleep gpio %d\n",
__func__, ts->platform_data->sleep_gpio);
goto error_sleep_gpio_req;
}
retval = gpio_direction_output(
ts->platform_data->sleep_gpio, 0);
if (retval) {
pr_err("%s: unable to set direction for gpio %d\n",
__func__, ts->platform_data->resout_gpio);
goto error_sleep_gpio_dir;
}
}
if (gpio_is_valid(ts->platform_data->irq_gpio)) {
/* configure touchscreen irq gpio */
retval = gpio_request(ts->platform_data->irq_gpio,
"ts_irq_gpio");
if (retval) {
pr_err("%s: unable to request gpio [%d]\n", __func__,
ts->platform_data->irq_gpio);
goto error_irq_gpio_req;
}
retval = gpio_direction_input(ts->platform_data->irq_gpio);
if (retval) {
pr_err("%s: unable to set_direction for gpio [%d]\n",
__func__, ts->platform_data->irq_gpio);
goto error_irq_gpio_dir;
}
}
if (ts->platform_data->regulator_info) {
retval = cyttsp_power_device(ts, true);
if (retval) {
pr_err("%s: Unable to power device %d\n",
__func__, retval);
goto error_irq_gpio_dir;
}
}
/* Power on the chip and make sure that I/Os are set as specified
* in the platform */
if (ts->platform_data->init) {
retval = ts->platform_data->init(client);
if (retval) {
pr_err("%s: ts init failed\n", __func__);
goto error_power_device;
}
}
msleep(100);
/* check this device active by reading first byte/register */
retval = i2c_smbus_read_byte_data(ts->client, 0x01);
if (retval < 0) {
pr_err("%s: i2c sanity check failed\n", __func__);
goto error_power_device;
}
retval = cyttsp_power_on(ts);
if (retval < 0) {
pr_err("%s: cyttsp_power_on failed\n", __func__);
goto error_power_device;
}
/* Timer or Interrupt setup */
if (ts->client->irq == 0) {
cyttsp_info("Setting up timer\n");
setup_timer(&ts->timer, cyttsp_timer, (unsigned long) ts);
mod_timer(&ts->timer, jiffies + TOUCHSCREEN_TIMEOUT);
} else {
cyttsp_info("Setting up interrupt\n");
error = request_threaded_irq(client->irq, NULL, cyttsp_irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->dev.driver->name, ts);
if (error) {
cyttsp_alert("error: could not request irq\n");
retval = error;
goto error_power_device;
}
}
irq_cnt = 0;
irq_cnt_total = 0;
irq_err_cnt = 0;
atomic_set(&ts->irq_enabled, 1);
retval = device_create_file(&ts->client->dev, &dev_attr_irq_enable);
if (retval < CY_OK) {
cyttsp_alert("File device creation failed: %d\n", retval);
retval = -ENODEV;
goto error_free_irq;
}
retval = device_create_file(&client->dev, &dev_attr_cyttsp_fw_ver);
if (retval) {
cyttsp_alert("sysfs entry for firmware version failed\n");
goto error_rm_dev_file_irq_en;
}
ts->cyttsp_fwloader_mode = 0;
retval = device_create_file(&client->dev, &dev_attr_cyttsp_update_fw);
if (retval) {
cyttsp_alert("sysfs entry for firmware update failed\n");
goto error_rm_dev_file_fw_ver;
}
retval = device_create_file(&client->dev,
&dev_attr_cyttsp_force_update_fw);
if (retval) {
cyttsp_alert("sysfs entry for force firmware update failed\n");
goto error_rm_dev_file_update_fw;
}
if (ts->platform_data->correct_fw_ver) {
if (g_bl_data.appid_lo != ts->platform_data->correct_fw_ver)
pr_warn("%s: Invalid firmware version detected;"
" Please update.\n", __func__);
}
retval = device_create_file(&client->dev,
&dev_attr_cyttsp_fw_name);
if (retval) {
cyttsp_alert("sysfs entry for file name selection failed\n");
goto error_rm_dev_file_fupdate_fw;
}
cyttsp_info("%s: Successful registration\n", CY_I2C_NAME);
goto success;
error_rm_dev_file_fupdate_fw:
device_remove_file(&client->dev, &dev_attr_cyttsp_force_update_fw);
error_rm_dev_file_update_fw:
device_remove_file(&client->dev, &dev_attr_cyttsp_update_fw);
error_rm_dev_file_fw_ver:
device_remove_file(&client->dev, &dev_attr_cyttsp_fw_ver);
error_rm_dev_file_irq_en:
device_remove_file(&client->dev, &dev_attr_irq_enable);
error_free_irq:
if (ts->client->irq)
free_irq(client->irq, ts);
error_power_device:
if (ts->platform_data->regulator_info)
cyttsp_power_device(ts, false);
error_irq_gpio_dir:
if (gpio_is_valid(ts->platform_data->irq_gpio))
gpio_free(ts->platform_data->irq_gpio);
error_irq_gpio_req:
if (gpio_is_valid(ts->platform_data->sleep_gpio))
gpio_direction_output(ts->platform_data->sleep_gpio, 1);
error_sleep_gpio_dir:
if (gpio_is_valid(ts->platform_data->sleep_gpio))
gpio_free(ts->platform_data->sleep_gpio);
error_sleep_gpio_req:
if (gpio_is_valid(ts->platform_data->resout_gpio))
gpio_direction_output(ts->platform_data->resout_gpio, 0);
error_resout_gpio_dir:
if (gpio_is_valid(ts->platform_data->resout_gpio))
gpio_free(ts->platform_data->resout_gpio);
error_free_device:
if (input_device)
input_free_device(input_device);
success:
return retval;
}
/* I2C driver probe function */
static int __devinit cyttsp_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cyttsp *ts;
int error;
int retval = CY_OK;
cyttsp_info("Start Probe 1.2\n");
/* allocate and clear memory */
ts = kzalloc(sizeof(struct cyttsp), GFP_KERNEL);
if (ts == NULL) {
cyttsp_xdebug1("err kzalloc for cyttsp\n");
return -ENOMEM;
}
/* Enable runtime PM ops, start in ACTIVE mode */
error = pm_runtime_set_active(&client->dev);
if (error < 0)
dev_dbg(&client->dev, "unable to set runtime pm state\n");
pm_runtime_enable(&client->dev);
if (!(retval < CY_OK)) {
/* register driver_data */
ts->client = client;
ts->platform_data = client->dev.platform_data;
if (ts->platform_data->fw_fname)
strlcpy(ts->fw_fname, ts->platform_data->fw_fname,
FW_FNAME_LEN - 1);
else
strlcpy(ts->fw_fname, "cyttsp.hex", FW_FNAME_LEN - 1);
if (ts->platform_data->gen == CY_GEN3) {
ts->fw_start_addr = 0x0b00;
} else if (ts->platform_data->gen == CY_GEN2) {
ts->fw_start_addr = 0x0880;
} else {
pr_err("%s: unsupported cypress chip\n", __func__);
kfree(ts);
return -EINVAL;
}
i2c_set_clientdata(client, ts);
error = cyttsp_initialize(client, ts);
if (error) {
cyttsp_xdebug1("err cyttsp_initialize\n");
/* deallocate memory */
kfree(ts);
/*
i2c_del_driver(&cyttsp_driver);
*/
return -ENODEV;
}
}
#ifdef CONFIG_HAS_EARLYSUSPEND
if (!(retval < CY_OK)) {
ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
ts->early_suspend.suspend = cyttsp_early_suspend;
ts->early_suspend.resume = cyttsp_late_resume;
register_early_suspend(&ts->early_suspend);
}
#endif /* CONFIG_HAS_EARLYSUSPEND */
device_init_wakeup(&client->dev, ts->platform_data->wakeup);
mutex_init(&ts->mutex);
cyttsp_info("Start Probe %s\n", \
(retval < CY_OK) ? "FAIL" : "PASS");
return retval;
}
#ifdef CONFIG_PM
static int cyttsp_regulator_lpm(struct cyttsp *ts, bool on)
{
int rc = 0, i;
const struct cyttsp_regulator *reg_info =
ts->platform_data->regulator_info;
u8 num_reg = ts->platform_data->num_regulators;
if (on == false)
goto regulator_hpm;
for (i = 0; i < num_reg; i++) {
rc = regulator_set_optimum_mode(ts->vdd[i],
reg_info[i].lpm_load_uA);
if (rc < 0) {
pr_err("%s: regulator_set_optimum failed rc = %d\n",
__func__, rc);
goto fail_regulator_lpm;
}
}
return 0;
regulator_hpm:
for (i = 0; i < num_reg; i++) {
rc = regulator_set_optimum_mode(ts->vdd[i],
reg_info[i].hpm_load_uA);
if (rc < 0) {
pr_err("%s: regulator_set_optimum failed"
"rc = %d\n", __func__, rc);
goto fail_regulator_hpm;
}
}
return 0;
fail_regulator_lpm:
while (i--)
regulator_set_optimum_mode(ts->vdd[i],
reg_info[i].hpm_load_uA);
return rc;
fail_regulator_hpm:
while (i--)
regulator_set_optimum_mode(ts->vdd[i],
reg_info[i].lpm_load_uA);
return rc;
}
/* Function to manage power-on resume */
static int cyttsp_resume(struct device *dev)
{
struct cyttsp *ts = dev_get_drvdata(dev);
int retval = CY_OK;
cyttsp_debug("Wake Up\n");
if (ts->is_suspended == false) {
pr_err("%s: in wakeup state\n", __func__);
return 0;
}
if (device_may_wakeup(dev)) {
if (ts->client->irq)
disable_irq_wake(ts->client->irq);
return 0;
}
/* re-enable the interrupt prior to wake device */
if (ts->client->irq)
enable_irq(ts->client->irq);
if (ts->platform_data->use_sleep &&
(ts->platform_data->power_state != CY_ACTIVE_STATE)) {
if (ts->platform_data->resume)
retval = ts->platform_data->resume(ts->client);
else
retval = cyttsp_regulator_lpm(ts, false);
/* take TTSP device out of bootloader mode;
* switch back to TrueTouch operational mode */
if (!(retval < CY_OK)) {
int tries = 0;
do {
msleep(100);
retval = i2c_smbus_write_i2c_block_data(
ts->client, CY_REG_BASE,
sizeof(bl_cmd), bl_cmd);
if (retval == CY_OK)
break;
} while (tries++ < 2);
/* wait for TTSP Device to complete
* switch to Operational mode */
tries = 0;
do {
msleep(100);
cyttsp_putbl(ts, 16, false, false, false);
} while (GET_BOOTLOADERMODE(g_bl_data.bl_status) &&
tries++ < 2);
cyttsp_putbl(ts, 16, true, false, false);
}
}
if (!(retval < CY_OK) &&
(GET_HSTMODE(g_bl_data.bl_file) == CY_OK)) {
ts->platform_data->power_state = CY_ACTIVE_STATE;
/* re-enable the timer after resuming */
if (ts->client->irq == 0)
mod_timer(&ts->timer, jiffies + TOUCHSCREEN_TIMEOUT);
} else
retval = -ENODEV;
ts->is_suspended = false;
cyttsp_debug("Wake Up %s\n", \
(retval < CY_OK) ? "FAIL" : "PASS");
return retval;
}
/* Function to manage low power suspend */
static int cyttsp_suspend(struct device *dev)
{
struct cyttsp *ts = dev_get_drvdata(dev);
u8 sleep_mode = CY_OK;
int retval = CY_OK;
cyttsp_debug("Enter Sleep\n");
if (ts->is_suspended == true) {
pr_err("%s: in sleep state\n", __func__);
return 0;
}
mutex_lock(&ts->mutex);
if (ts->cyttsp_fwloader_mode) {
pr_err("%s:firmware upgrade mode:"
"suspend not allowed\n", __func__);
mutex_unlock(&ts->mutex);
return -EBUSY;
}
mutex_unlock(&ts->mutex);
if (device_may_wakeup(dev)) {
if (ts->client->irq)
enable_irq_wake(ts->client->irq);
return 0;
}
if (ts->client->irq == 0)
del_timer(&ts->timer);
else
disable_irq(ts->client->irq);
if (!(retval < CY_OK)) {
if (ts->platform_data->use_sleep &&
(ts->platform_data->power_state == CY_ACTIVE_STATE)) {
if (ts->platform_data->suspend) {
retval =
ts->platform_data->suspend(ts->client);
} else {
retval = cyttsp_regulator_lpm(ts, true);
}
if (ts->platform_data->use_sleep & CY_USE_DEEP_SLEEP_SEL)
sleep_mode = CY_DEEP_SLEEP_MODE;
else
sleep_mode = CY_LOW_PWR_MODE;
if (!(retval < CY_OK)) {
retval =
i2c_smbus_write_i2c_block_data(ts->client,
CY_REG_BASE,
sizeof(sleep_mode), &sleep_mode);
}
}
}
if (!(retval < CY_OK)) {
if (sleep_mode == CY_DEEP_SLEEP_MODE)
ts->platform_data->power_state = CY_SLEEP_STATE;
else if (sleep_mode == CY_LOW_PWR_MODE)
ts->platform_data->power_state = CY_LOW_PWR_STATE;
}
ts->is_suspended = true;
cyttsp_debug("Sleep Power state is %s\n", \
(ts->platform_data->power_state == CY_ACTIVE_STATE) ? \
"ACTIVE" : \
((ts->platform_data->power_state == CY_SLEEP_STATE) ? \
"SLEEP" : "LOW POWER"));
return retval;
}
#endif
/* registered in driver struct */
static int __devexit cyttsp_remove(struct i2c_client *client)
{
/* clientdata registered on probe */
struct cyttsp *ts = i2c_get_clientdata(client);
int err;
cyttsp_alert("Unregister\n");
pm_runtime_set_suspended(&client->dev);
pm_runtime_disable(&client->dev);
device_init_wakeup(&client->dev, 0);
device_remove_file(&ts->client->dev, &dev_attr_irq_enable);
device_remove_file(&client->dev, &dev_attr_cyttsp_fw_ver);
device_remove_file(&client->dev, &dev_attr_cyttsp_update_fw);
device_remove_file(&client->dev, &dev_attr_cyttsp_force_update_fw);
device_remove_file(&client->dev, &dev_attr_cyttsp_fw_name);
/* free up timer or irq */
if (ts->client->irq == 0) {
err = del_timer(&ts->timer);
if (err < CY_OK)
cyttsp_alert("error: failed to delete timer\n");
} else
free_irq(client->irq, ts);
if (ts->platform_data->regulator_info)
cyttsp_power_device(ts, false);
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&ts->early_suspend);
#endif /* CONFIG_HAS_EARLYSUSPEND */
mutex_destroy(&ts->mutex);
if (gpio_is_valid(ts->platform_data->sleep_gpio)) {
gpio_direction_output(ts->platform_data->sleep_gpio, 1);
gpio_free(ts->platform_data->sleep_gpio);
}
if (gpio_is_valid(ts->platform_data->resout_gpio)) {
gpio_direction_output(ts->platform_data->resout_gpio, 0);
gpio_free(ts->platform_data->resout_gpio);
}
if (gpio_is_valid(ts->platform_data->irq_gpio))
gpio_free(ts->platform_data->irq_gpio);
/* housekeeping */
kfree(ts);
cyttsp_alert("Leaving\n");
return 0;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
static void cyttsp_early_suspend(struct early_suspend *handler)
{
struct cyttsp *ts;
ts = container_of(handler, struct cyttsp, early_suspend);
cyttsp_suspend(&ts->client->dev);
}
static void cyttsp_late_resume(struct early_suspend *handler)
{
struct cyttsp *ts;
ts = container_of(handler, struct cyttsp, early_suspend);
cyttsp_resume(&ts->client->dev);
}
#endif /* CONFIG_HAS_EARLYSUSPEND */
static int cyttsp_init(void)
{
int ret;
cyttsp_info("Cypress TrueTouch(R) Standard Product\n");
cyttsp_info("I2C Touchscreen Driver (Built %s @ %s)\n", \
__DATE__, __TIME__);
ret = i2c_add_driver(&cyttsp_driver);
return ret;
}
static void cyttsp_exit(void)
{
return i2c_del_driver(&cyttsp_driver);
}
module_init(cyttsp_init);
module_exit(cyttsp_exit);
MODULE_FIRMWARE("cyttsp.fw");