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path: root/drivers/input/rmi4/rmi_f12.c
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Diffstat (limited to 'drivers/input/rmi4/rmi_f12.c')
-rw-r--r--drivers/input/rmi4/rmi_f12.c146
1 files changed, 112 insertions, 34 deletions
diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
index 332c02f0b107..07aff4356fe0 100644
--- a/drivers/input/rmi4/rmi_f12.c
+++ b/drivers/input/rmi4/rmi_f12.c
@@ -26,9 +26,12 @@ enum rmi_f12_object_type {
RMI_F12_OBJECT_SMALL_OBJECT = 0x0D,
};
+#define F12_DATA1_BYTES_PER_OBJ 8
+
struct f12_data {
struct rmi_2d_sensor sensor;
struct rmi_2d_sensor_platform_data sensor_pdata;
+ bool has_dribble;
u16 data_addr;
@@ -68,10 +71,6 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
u8 buf[15];
int pitch_x = 0;
int pitch_y = 0;
- int clip_x_low = 0;
- int clip_x_high = 0;
- int clip_y_low = 0;
- int clip_y_high = 0;
int rx_receivers = 0;
int tx_receivers = 0;
int sensor_flags = 0;
@@ -124,7 +123,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
}
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s: x low: %d x high: %d y low: %d y high: %d\n",
- __func__, clip_x_low, clip_x_high, clip_y_low, clip_y_high);
+ __func__,
+ sensor->axis_align.clip_x_low, sensor->axis_align.clip_x_high,
+ sensor->axis_align.clip_y_low, sensor->axis_align.clip_y_high);
if (rmi_register_desc_has_subpacket(item, 3)) {
rx_receivers = buf[offset];
@@ -146,12 +147,16 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
return 0;
}
-static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
+static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1, int size)
{
int i;
struct rmi_2d_sensor *sensor = &f12->sensor;
+ int objects = f12->data1->num_subpackets;
+
+ if ((f12->data1->num_subpackets * F12_DATA1_BYTES_PER_OBJ) > size)
+ objects = size / F12_DATA1_BYTES_PER_OBJ;
- for (i = 0; i < f12->data1->num_subpackets; i++) {
+ for (i = 0; i < objects; i++) {
struct rmi_2d_sensor_abs_object *obj = &sensor->objs[i];
obj->type = RMI_2D_OBJECT_NONE;
@@ -182,7 +187,7 @@ static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
rmi_2d_sensor_abs_process(sensor, obj, i);
- data1 += 8;
+ data1 += F12_DATA1_BYTES_PER_OBJ;
}
if (sensor->kernel_tracking)
@@ -192,7 +197,7 @@ static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
sensor->nbr_fingers,
sensor->dmax);
- for (i = 0; i < sensor->nbr_fingers; i++)
+ for (i = 0; i < objects; i++)
rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i);
}
@@ -201,14 +206,20 @@ static int rmi_f12_attention(struct rmi_function *fn,
{
int retval;
struct rmi_device *rmi_dev = fn->rmi_dev;
+ struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
struct f12_data *f12 = dev_get_drvdata(&fn->dev);
struct rmi_2d_sensor *sensor = &f12->sensor;
-
- if (rmi_dev->xport->attn_data) {
- memcpy(sensor->data_pkt, rmi_dev->xport->attn_data,
- sensor->attn_size);
- rmi_dev->xport->attn_data += sensor->attn_size;
- rmi_dev->xport->attn_size -= sensor->attn_size;
+ int valid_bytes = sensor->pkt_size;
+
+ if (drvdata->attn_data.data) {
+ if (sensor->attn_size > drvdata->attn_data.size)
+ valid_bytes = drvdata->attn_data.size;
+ else
+ valid_bytes = sensor->attn_size;
+ memcpy(sensor->data_pkt, drvdata->attn_data.data,
+ valid_bytes);
+ drvdata->attn_data.data += sensor->attn_size;
+ drvdata->attn_data.size -= sensor->attn_size;
} else {
retval = rmi_read_block(rmi_dev, f12->data_addr,
sensor->data_pkt, sensor->pkt_size);
@@ -221,19 +232,83 @@ static int rmi_f12_attention(struct rmi_function *fn,
if (f12->data1)
rmi_f12_process_objects(f12,
- &sensor->data_pkt[f12->data1_offset]);
+ &sensor->data_pkt[f12->data1_offset], valid_bytes);
input_mt_sync_frame(sensor->input);
return 0;
}
+static int rmi_f12_write_control_regs(struct rmi_function *fn)
+{
+ int ret;
+ const struct rmi_register_desc_item *item;
+ struct rmi_device *rmi_dev = fn->rmi_dev;
+ struct f12_data *f12 = dev_get_drvdata(&fn->dev);
+ int control_size;
+ char buf[3];
+ u16 control_offset = 0;
+ u8 subpacket_offset = 0;
+
+ if (f12->has_dribble
+ && (f12->sensor.dribble != RMI_REG_STATE_DEFAULT)) {
+ item = rmi_get_register_desc_item(&f12->control_reg_desc, 20);
+ if (item) {
+ control_offset = rmi_register_desc_calc_reg_offset(
+ &f12->control_reg_desc, 20);
+
+ /*
+ * The byte containing the EnableDribble bit will be
+ * in either byte 0 or byte 2 of control 20. Depending
+ * on the existence of subpacket 0. If control 20 is
+ * larger then 3 bytes, just read the first 3.
+ */
+ control_size = min(item->reg_size, 3UL);
+
+ ret = rmi_read_block(rmi_dev, fn->fd.control_base_addr
+ + control_offset, buf, control_size);
+ if (ret)
+ return ret;
+
+ if (rmi_register_desc_has_subpacket(item, 0))
+ subpacket_offset += 1;
+
+ switch (f12->sensor.dribble) {
+ case RMI_REG_STATE_OFF:
+ buf[subpacket_offset] &= ~BIT(2);
+ break;
+ case RMI_REG_STATE_ON:
+ buf[subpacket_offset] |= BIT(2);
+ break;
+ case RMI_REG_STATE_DEFAULT:
+ default:
+ break;
+ }
+
+ ret = rmi_write_block(rmi_dev,
+ fn->fd.control_base_addr + control_offset,
+ buf, control_size);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return 0;
+
+}
+
static int rmi_f12_config(struct rmi_function *fn)
{
struct rmi_driver *drv = fn->rmi_dev->driver;
+ int ret;
drv->set_irq_bits(fn->rmi_dev, fn->irq_mask);
+ ret = rmi_f12_write_control_regs(fn);
+ if (ret)
+ dev_warn(&fn->dev,
+ "Failed to write F12 control registers: %d\n", ret);
+
return 0;
}
@@ -247,7 +322,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
const struct rmi_register_desc_item *item;
struct rmi_2d_sensor *sensor;
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
- struct rmi_transport_dev *xport = rmi_dev->xport;
+ struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
u16 data_offset = 0;
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s\n", __func__);
@@ -260,7 +335,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
++query_addr;
- if (!(buf & 0x1)) {
+ if (!(buf & BIT(0))) {
dev_err(&fn->dev,
"Behavior of F12 without register descriptors is undefined.\n");
return -ENODEV;
@@ -270,12 +345,14 @@ static int rmi_f12_probe(struct rmi_function *fn)
if (!f12)
return -ENOMEM;
+ f12->has_dribble = !!(buf & BIT(3));
+
if (fn->dev.of_node) {
ret = rmi_2d_sensor_of_probe(&fn->dev, &f12->sensor_pdata);
if (ret)
return ret;
- } else if (pdata->sensor_pdata) {
- f12->sensor_pdata = *pdata->sensor_pdata;
+ } else {
+ f12->sensor_pdata = pdata->sensor_pdata;
}
ret = rmi_read_register_desc(rmi_dev, query_addr,
@@ -318,6 +395,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
sensor->x_mm = f12->sensor_pdata.x_mm;
sensor->y_mm = f12->sensor_pdata.y_mm;
+ sensor->dribble = f12->sensor_pdata.dribble;
if (sensor->sensor_type == rmi_sensor_default)
sensor->sensor_type =
@@ -343,7 +421,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
* HID attention reports.
*/
item = rmi_get_register_desc_item(&f12->data_reg_desc, 0);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 1);
@@ -357,15 +435,15 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 2);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 3);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 4);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 5);
@@ -377,22 +455,22 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 6);
- if (item && !xport->attn_data) {
+ if (item && !drvdata->attn_data.data) {
f12->data6 = item;
f12->data6_offset = data_offset;
data_offset += item->reg_size;
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 7);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 8);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 9);
- if (item && !xport->attn_data) {
+ if (item && !drvdata->attn_data.data) {
f12->data9 = item;
f12->data9_offset = data_offset;
data_offset += item->reg_size;
@@ -401,27 +479,27 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 10);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 11);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 12);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 13);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 14);
- if (item && !xport->attn_data)
+ if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 15);
- if (item && !xport->attn_data) {
+ if (item && !drvdata->attn_data.data) {
f12->data15 = item;
f12->data15_offset = data_offset;
data_offset += item->reg_size;