/* MXT_TOUCH_MULTI_T9 field */
#define MXT_TOUCH_CTRL 0
-#define MXT_TOUCH_XORIGIN 1
-#define MXT_TOUCH_YORIGIN 2
-#define MXT_TOUCH_XSIZE 3
-#define MXT_TOUCH_YSIZE 4
-#define MXT_TOUCH_BLEN 6
-#define MXT_TOUCH_TCHTHR 7
-#define MXT_TOUCH_TCHDI 8
-#define MXT_TOUCH_ORIENT 9
-#define MXT_TOUCH_MOVHYSTI 11
-#define MXT_TOUCH_MOVHYSTN 12
-#define MXT_TOUCH_NUMTOUCH 14
-#define MXT_TOUCH_MRGHYST 15
-#define MXT_TOUCH_MRGTHR 16
-#define MXT_TOUCH_AMPHYST 17
-#define MXT_TOUCH_XRANGE_LSB 18
-#define MXT_TOUCH_XRANGE_MSB 19
-#define MXT_TOUCH_YRANGE_LSB 20
-#define MXT_TOUCH_YRANGE_MSB 21
-#define MXT_TOUCH_XLOCLIP 22
-#define MXT_TOUCH_XHICLIP 23
-#define MXT_TOUCH_YLOCLIP 24
-#define MXT_TOUCH_YHICLIP 25
-#define MXT_TOUCH_XEDGECTRL 26
-#define MXT_TOUCH_XEDGEDIST 27
-#define MXT_TOUCH_YEDGECTRL 28
-#define MXT_TOUCH_YEDGEDIST 29
-#define MXT_TOUCH_JUMPLIMIT 30
+#define MXT_T9_ORIENT 9
+#define MXT_T9_RANGE 18
+
+/* MXT_TOUCH_MULTI_T9 status */
+#define MXT_T9_UNGRIP (1 << 0)
+#define MXT_T9_SUPPRESS (1 << 1)
+#define MXT_T9_AMP (1 << 2)
+#define MXT_T9_VECTOR (1 << 3)
+#define MXT_T9_MOVE (1 << 4)
+#define MXT_T9_RELEASE (1 << 5)
+#define MXT_T9_PRESS (1 << 6)
+#define MXT_T9_DETECT (1 << 7)
+
+struct t9_range {
+ u16 x;
+ u16 y;
+} __packed;
+
+/* MXT_TOUCH_MULTI_T9 orient */
+#define MXT_T9_ORIENT_SWITCH (1 << 0)
/* MXT_PROCI_GRIPFACE_T20 field */
#define MXT_GRIPFACE_CTRL 0
#define MXT_BOOT_EXTENDED_ID (1 << 5)
#define MXT_BOOT_ID_MASK 0x1f
-/* Touch status */
-#define MXT_UNGRIP (1 << 0)
-#define MXT_SUPPRESS (1 << 1)
-#define MXT_AMP (1 << 2)
-#define MXT_VECTOR (1 << 3)
-#define MXT_MOVE (1 << 4)
-#define MXT_RELEASE (1 << 5)
-#define MXT_PRESS (1 << 6)
-#define MXT_DETECT (1 << 7)
-
-/* Touch orient bits */
-#define MXT_XY_SWITCH (1 << 0)
-#define MXT_X_INVERT (1 << 1)
-#define MXT_Y_INVERT (1 << 2)
-
/* Touchscreen absolute values */
#define MXT_MAX_AREA 0xff
if (val & MXT_BOOT_EXTENDED_ID) {
if (mxt_bootloader_read(data, &buf[0], 3) != 0) {
dev_err(dev, "%s: i2c failure\n", __func__);
- return -EIO;
+ return val;
}
dev_dbg(dev, "Bootloader ID:%d Version:%d\n", buf[1], buf[2]);
return ret;
}
-static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val)
-{
- return __mxt_read_reg(client, reg, 1, val);
-}
-
static int __mxt_write_reg(struct i2c_client *client, u16 reg, u16 len,
const void *val)
{
}
}
+static void mxt_input_sync(struct input_dev *input_dev)
+{
+ input_mt_report_pointer_emulation(input_dev, false);
+ input_sync(input_dev);
+}
+
static void mxt_input_touchevent(struct mxt_data *data,
struct mxt_message *message, int id)
{
int x;
int y;
int area;
- int pressure;
+ int amplitude;
x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf);
y = (message->message[2] << 4) | ((message->message[3] & 0xf));
+
+ /* Handle 10/12 bit switching */
if (data->max_x < 1024)
- x = x >> 2;
+ x >>= 2;
if (data->max_y < 1024)
- y = y >> 2;
+ y >>= 2;
area = message->message[4];
- pressure = message->message[5];
+ amplitude = message->message[5];
dev_dbg(dev,
"[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n",
id,
- (status & MXT_DETECT) ? 'D' : '.',
- (status & MXT_PRESS) ? 'P' : '.',
- (status & MXT_RELEASE) ? 'R' : '.',
- (status & MXT_MOVE) ? 'M' : '.',
- (status & MXT_VECTOR) ? 'V' : '.',
- (status & MXT_AMP) ? 'A' : '.',
- (status & MXT_SUPPRESS) ? 'S' : '.',
- (status & MXT_UNGRIP) ? 'U' : '.',
- x, y, area, pressure);
+ (status & MXT_T9_DETECT) ? 'D' : '.',
+ (status & MXT_T9_PRESS) ? 'P' : '.',
+ (status & MXT_T9_RELEASE) ? 'R' : '.',
+ (status & MXT_T9_MOVE) ? 'M' : '.',
+ (status & MXT_T9_VECTOR) ? 'V' : '.',
+ (status & MXT_T9_AMP) ? 'A' : '.',
+ (status & MXT_T9_SUPPRESS) ? 'S' : '.',
+ (status & MXT_T9_UNGRIP) ? 'U' : '.',
+ x, y, area, amplitude);
input_mt_slot(input_dev, id);
- input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
- status & MXT_DETECT);
- if (status & MXT_DETECT) {
+ if (status & MXT_T9_DETECT) {
+ /*
+ * Multiple bits may be set if the host is slow to read
+ * the status messages, indicating all the events that
+ * have happened.
+ */
+ if (status & MXT_T9_RELEASE) {
+ input_mt_report_slot_state(input_dev,
+ MT_TOOL_FINGER, 0);
+ mxt_input_sync(input_dev);
+ }
+
+ /* Touch active */
+ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1);
input_report_abs(input_dev, ABS_MT_POSITION_X, x);
input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
- input_report_abs(input_dev, ABS_MT_PRESSURE, pressure);
+ input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude);
input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
+ } else {
+ /* Touch no longer active, close out slot */
+ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
}
}
if (status & MXT_T6_STATUS_RESET)
complete(&data->reset_completion);
+ } else if (!data->input_dev) {
+ /*
+ * do not report events if input device
+ * is not yet registered
+ */
+ mxt_dump_message(dev, &message);
} else if (mxt_is_T9_message(data, &message)) {
int id = reportid - data->T9_reportid_min;
mxt_input_touchevent(data, &message, id);
}
} while (reportid != 0xff);
- if (update_input) {
- input_mt_report_pointer_emulation(data->input_dev, false);
- input_sync(data->input_dev);
- }
+ if (update_input)
+ mxt_input_sync(data->input_dev);
return IRQ_HANDLED;
}
return IRQ_HANDLED;
}
+ if (!data->object_table)
+ return IRQ_HANDLED;
+
return mxt_process_messages_until_invalid(data);
}
return 0;
}
+static int mxt_acquire_irq(struct mxt_data *data)
+{
+ int error;
+
+ enable_irq(data->irq);
+
+ error = mxt_make_highchg(data);
+ if (error)
+ return error;
+
+ return 0;
+}
+
static int mxt_get_info(struct mxt_data *data)
{
struct i2c_client *client = data->client;
{
struct i2c_client *client = data->client;
size_t table_size;
+ struct mxt_object *object_table;
int error;
int i;
u8 reportid;
table_size = data->info.object_num * sizeof(struct mxt_object);
+ object_table = kzalloc(table_size, GFP_KERNEL);
+ if (!object_table) {
+ dev_err(&data->client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
error = __mxt_read_reg(client, MXT_OBJECT_START, table_size,
- data->object_table);
- if (error)
+ object_table);
+ if (error) {
+ kfree(object_table);
return error;
+ }
/* Valid Report IDs start counting from 1 */
reportid = 1;
for (i = 0; i < data->info.object_num; i++) {
- struct mxt_object *object = data->object_table + i;
+ struct mxt_object *object = object_table + i;
u8 min_id, max_id;
le16_to_cpus(&object->start_address);
}
}
+ data->object_table = object_table;
+
return 0;
}
static void mxt_free_object_table(struct mxt_data *data)
{
+ input_unregister_device(data->input_dev);
+ data->input_dev = NULL;
+
kfree(data->object_table);
data->object_table = NULL;
data->T6_reportid = 0;
data->T19_reportid = 0;
}
-static int mxt_initialize(struct mxt_data *data)
+static int mxt_read_t9_resolution(struct mxt_data *data)
{
struct i2c_client *client = data->client;
- struct mxt_info *info = &data->info;
int error;
- u8 val;
+ struct t9_range range;
+ unsigned char orient;
+ struct mxt_object *object;
- error = mxt_get_info(data);
+ object = mxt_get_object(data, MXT_TOUCH_MULTI_T9);
+ if (!object)
+ return -EINVAL;
+
+ error = __mxt_read_reg(client,
+ object->start_address + MXT_T9_RANGE,
+ sizeof(range), &range);
if (error)
return error;
- data->object_table = kcalloc(info->object_num,
- sizeof(struct mxt_object),
- GFP_KERNEL);
- if (!data->object_table) {
- dev_err(&client->dev, "Failed to allocate memory\n");
+ le16_to_cpus(&range.x);
+ le16_to_cpus(&range.y);
+
+ error = __mxt_read_reg(client,
+ object->start_address + MXT_T9_ORIENT,
+ 1, &orient);
+ if (error)
+ return error;
+
+ /* Handle default values */
+ if (range.x == 0)
+ range.x = 1023;
+
+ if (range.y == 0)
+ range.y = 1023;
+
+ if (orient & MXT_T9_ORIENT_SWITCH) {
+ data->max_x = range.y;
+ data->max_y = range.x;
+ } else {
+ data->max_x = range.x;
+ data->max_y = range.y;
+ }
+
+ dev_dbg(&client->dev,
+ "Touchscreen size X%uY%u\n", data->max_x, data->max_y);
+
+ return 0;
+}
+
+static int mxt_input_open(struct input_dev *dev);
+static void mxt_input_close(struct input_dev *dev);
+
+static int mxt_initialize_t9_input_device(struct mxt_data *data)
+{
+ struct device *dev = &data->client->dev;
+ const struct mxt_platform_data *pdata = data->pdata;
+ struct input_dev *input_dev;
+ int error;
+ unsigned int num_mt_slots;
+ unsigned int mt_flags = 0;
+ int i;
+
+ error = mxt_read_t9_resolution(data);
+ if (error)
+ dev_warn(dev, "Failed to initialize T9 resolution\n");
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(dev, "Failed to allocate memory\n");
return -ENOMEM;
}
+ input_dev->name = "Atmel maXTouch Touchscreen";
+ input_dev->phys = data->phys;
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = dev;
+ input_dev->open = mxt_input_open;
+ input_dev->close = mxt_input_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ if (pdata->t19_num_keys) {
+ __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
+
+ for (i = 0; i < pdata->t19_num_keys; i++)
+ if (pdata->t19_keymap[i] != KEY_RESERVED)
+ input_set_capability(input_dev, EV_KEY,
+ pdata->t19_keymap[i]);
+
+ mt_flags |= INPUT_MT_POINTER;
+
+ input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_MT_POSITION_X,
+ MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
+ MXT_PIXELS_PER_MM);
+
+ input_dev->name = "Atmel maXTouch Touchpad";
+ }
+
+ /* For single touch */
+ input_set_abs_params(input_dev, ABS_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, 255, 0, 0);
+
+ /* For multi touch */
+ num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
+ error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags);
+ if (error) {
+ dev_err(dev, "Error %d initialising slots\n", error);
+ goto err_free_mem;
+ }
+
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+ 0, MXT_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_PRESSURE,
+ 0, 255, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(dev, "Error %d registering input device\n", error);
+ goto err_free_mem;
+ }
+
+ data->input_dev = input_dev;
+
+ return 0;
+
+err_free_mem:
+ input_free_device(input_dev);
+ return error;
+}
+
+static int mxt_initialize(struct mxt_data *data)
+{
+ struct i2c_client *client = data->client;
+ struct mxt_info *info = &data->info;
+ int error;
+
+ error = mxt_get_info(data);
+ if (error)
+ return error;
+
/* Get object table information */
error = mxt_get_object_table(data);
if (error) {
dev_err(&client->dev, "Error %d reading object table\n", error);
- goto err_free_object_table;
+ return error;
}
+ mxt_acquire_irq(data);
+ if (error)
+ goto err_free_object_table;
+
/* Check register init values */
error = mxt_check_reg_init(data);
if (error) {
goto err_free_object_table;
}
- /* Update matrix size at info struct */
- error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val);
+ error = mxt_initialize_t9_input_device(data);
if (error)
goto err_free_object_table;
- info->matrix_xsize = val;
-
- error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val);
- if (error)
- goto err_free_object_table;
- info->matrix_ysize = val;
-
- dev_info(&client->dev,
- "Family: %u Variant: %u Firmware V%u.%u.%02X\n",
- info->family_id, info->variant_id, info->version >> 4,
- info->version & 0xf, info->build);
dev_info(&client->dev,
- "Matrix X Size: %u Matrix Y Size: %u Objects: %u\n",
- info->matrix_xsize, info->matrix_ysize,
- info->object_num);
+ "Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n",
+ info->family_id, info->variant_id, info->version >> 4,
+ info->version & 0xf, info->build, info->object_num);
return 0;
return error;
}
-static void mxt_calc_resolution(struct mxt_data *data)
-{
- unsigned int max_x = data->pdata->x_size - 1;
- unsigned int max_y = data->pdata->y_size - 1;
-
- if (data->pdata->orient & MXT_XY_SWITCH) {
- data->max_x = max_y;
- data->max_y = max_x;
- } else {
- data->max_x = max_x;
- data->max_y = max_y;
- }
-}
-
/* Firmware Version is returned as Major.Minor.Build */
static ssize_t mxt_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
return error ?: count;
}
+static int mxt_check_firmware_format(struct device *dev,
+ const struct firmware *fw)
+{
+ unsigned int pos = 0;
+ char c;
+
+ while (pos < fw->size) {
+ c = *(fw->data + pos);
+
+ if (c < '0' || (c > '9' && c < 'A') || c > 'F')
+ return 0;
+
+ pos++;
+ }
+
+ /*
+ * To convert file try:
+ * xxd -r -p mXTXXX__APP_VX-X-XX.enc > maxtouch.fw
+ */
+ dev_err(dev, "Aborting: firmware file must be in binary format\n");
+
+ return -EINVAL;
+}
+
static int mxt_load_fw(struct device *dev, const char *fn)
{
struct mxt_data *data = dev_get_drvdata(dev);
unsigned int frame_size;
unsigned int pos = 0;
unsigned int retry = 0;
+ unsigned int frame = 0;
int ret;
ret = request_firmware(&fw, fn, dev);
return ret;
}
+ /* Check for incorrect enc file */
+ ret = mxt_check_firmware_format(dev, fw);
+ if (ret)
+ goto release_firmware;
+
ret = mxt_lookup_bootloader_address(data);
if (ret)
goto release_firmware;
} else {
retry = 0;
pos += frame_size;
+ frame++;
}
- dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
+ if (frame % 50 == 0)
+ dev_dbg(dev, "Sent %d frames, %d/%zd bytes\n",
+ frame, pos, fw->size);
}
/* Wait for flash. */
if (ret)
goto disable_irq;
+ dev_dbg(dev, "Sent %d frames, %d bytes\n", frame, pos);
+
/*
* Wait for device to reset. Some bootloader versions do not assert
* the CHG line after bootloading has finished, so ignore potential
mxt_free_object_table(data);
- mxt_initialize(data);
-
- enable_irq(data->irq);
-
- error = mxt_make_highchg(data);
+ error = mxt_initialize(data);
if (error)
return error;
}
static int mxt_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct mxt_platform_data *pdata = dev_get_platdata(&client->dev);
struct mxt_data *data;
- struct input_dev *input_dev;
+ const struct mxt_platform_data *pdata = dev_get_platdata(&client->dev);
int error;
- unsigned int num_mt_slots;
- unsigned int mt_flags = 0;
- int i;
if (!pdata)
return -EINVAL;
data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!data || !input_dev) {
+ if (!data) {
dev_err(&client->dev, "Failed to allocate memory\n");
- error = -ENOMEM;
- goto err_free_mem;
+ return -ENOMEM;
}
- input_dev->name = "Atmel maXTouch Touchscreen";
snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0",
client->adapter->nr, client->addr);
- input_dev->phys = data->phys;
-
- input_dev->id.bustype = BUS_I2C;
- input_dev->dev.parent = &client->dev;
- input_dev->open = mxt_input_open;
- input_dev->close = mxt_input_close;
-
data->client = client;
- data->input_dev = input_dev;
data->pdata = pdata;
data->irq = client->irq;
+ i2c_set_clientdata(client, data);
init_completion(&data->bl_completion);
init_completion(&data->reset_completion);
init_completion(&data->crc_completion);
- mxt_calc_resolution(data);
-
- error = mxt_initialize(data);
- if (error)
- goto err_free_mem;
-
- __set_bit(EV_ABS, input_dev->evbit);
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(BTN_TOUCH, input_dev->keybit);
-
- if (pdata->t19_num_keys) {
- __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
-
- for (i = 0; i < pdata->t19_num_keys; i++)
- if (pdata->t19_keymap[i] != KEY_RESERVED)
- input_set_capability(input_dev, EV_KEY,
- pdata->t19_keymap[i]);
-
- mt_flags |= INPUT_MT_POINTER;
-
- input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_MT_POSITION_X,
- MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
- MXT_PIXELS_PER_MM);
-
- input_dev->name = "Atmel maXTouch Touchpad";
- }
-
- /* For single touch */
- input_set_abs_params(input_dev, ABS_X,
- 0, data->max_x, 0, 0);
- input_set_abs_params(input_dev, ABS_Y,
- 0, data->max_y, 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE,
- 0, 255, 0, 0);
-
- /* For multi touch */
- num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
- error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags);
- if (error)
- goto err_free_object;
- input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
- 0, MXT_MAX_AREA, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_X,
- 0, data->max_x, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
- 0, data->max_y, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_PRESSURE,
- 0, 255, 0, 0);
-
- input_set_drvdata(input_dev, data);
- i2c_set_clientdata(client, data);
-
error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
pdata->irqflags | IRQF_ONESHOT,
client->name, data);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
- goto err_free_object;
+ goto err_free_mem;
}
- error = mxt_make_highchg(data);
- if (error)
- goto err_free_irq;
+ disable_irq(client->irq);
- error = input_register_device(input_dev);
- if (error) {
- dev_err(&client->dev, "Error %d registering input device\n",
- error);
+ error = mxt_initialize(data);
+ if (error)
goto err_free_irq;
- }
error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
if (error) {
dev_err(&client->dev, "Failure %d creating sysfs group\n",
error);
- goto err_unregister_device;
+ goto err_free_object;
}
return 0;
-err_unregister_device:
- input_unregister_device(input_dev);
- input_dev = NULL;
-err_free_irq:
- free_irq(client->irq, data);
err_free_object:
kfree(data->object_table);
+err_free_irq:
+ free_irq(client->irq, data);
err_free_mem:
- input_free_device(input_dev);
kfree(data);
return error;
}
projects / karo-tx-linux.git / blobdiff