| Message ID | 20210829091925.190-9-alistair@alistair23.me (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add Wacom I2C support to rM2 | expand |
Just minor style issues checked. On Sun, Aug 29, 2021 at 07:19:20PM +1000, Alistair Francis wrote: > Improve the query device fields to be more verbose. > > Signed-off-by: Alistair Francis <alistair@alistair23.me> > --- > drivers/input/touchscreen/wacom_i2c.c | 63 ++++++++++++++++++--------- > 1 file changed, 43 insertions(+), 20 deletions(-) > > diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c > index d6036406a9f3..a35d8fda7e7b 100644 > --- a/drivers/input/touchscreen/wacom_i2c.c > +++ b/drivers/input/touchscreen/wacom_i2c.c > @@ -13,16 +13,33 @@ > #include <linux/irq.h> > #include <linux/input/touchscreen.h> > #include <linux/interrupt.h> > +#include <linux/reset.h> > #include <linux/of.h> > #include <asm/unaligned.h> > > +// Registers Use /* */ comments. > #define WACOM_DESC_REG 0x01 > -#define WACOM_CMD_QUERY0 0x04 > -#define WACOM_CMD_QUERY1 0x00 > -#define WACOM_CMD_QUERY2 0x33 > -#define WACOM_CMD_QUERY3 0x02 > -#define WACOM_CMD_THROW0 0x05 > -#define WACOM_CMD_THROW1 0x00 > +#define WACOM_COMMAND_LSB 0x04 > +#define WACOM_COMMAND_MSB 0x00 > + > +#define WACOM_DATA_LSB 0x05 > +#define WACOM_DATA_MSB 0x00 You use spaces here. Should be tabs. > + > +// Report types > +#define REPORT_FEATURE 0x30 > + > +// Requests / operations > +#define OPCODE_GET_REPORT 0x02 > + > +// Power settings > +#define POWER_ON 0x00 > +#define POWER_SLEEP 0x01 > + > +// Input report ids > +#define WACOM_PEN_DATA_REPORT 2 > +#define WACOM_SHINONOME_REPORT 26 > + > +#define WACOM_QUERY_REPORT 3 > #define WACOM_QUERY_SIZE 22 > > #define WACOM_MAX_DATA_SIZE_BG9 10 > @@ -85,27 +102,30 @@ static int wacom_query_device(struct i2c_client *client, > { > int ret; > u8 cmd_wac_desc[] = {WACOM_DESC_REG, 0x00}; > - u8 cmd1[] = { WACOM_CMD_QUERY0, WACOM_CMD_QUERY1, > - WACOM_CMD_QUERY2, WACOM_CMD_QUERY3 }; > - u8 cmd2[] = { WACOM_CMD_THROW0, WACOM_CMD_THROW1 }; > u8 data[WACOM_QUERY_SIZE]; > + > + u8 get_query_data_cmd[] = { > + WACOM_COMMAND_LSB, > + WACOM_COMMAND_MSB, > + REPORT_FEATURE | WACOM_QUERY_REPORT, > + OPCODE_GET_REPORT, > + WACOM_DATA_LSB, > + WACOM_DATA_MSB, > + }; > + > struct i2c_msg msgs[] = { > + // Request reading of feature ReportID: 3 (Pen Query Data) // > { > .addr = client->addr, > .flags = 0, > - .len = sizeof(cmd1), > - .buf = cmd1, > - }, > - { > - .addr = client->addr, > - .flags = 0, > - .len = sizeof(cmd2), > - .buf = cmd2, > + .len = sizeof(get_query_data_cmd), > + .buf = get_query_data_cmd, > }, > + // Read 21 bytes // > { > .addr = client->addr, > .flags = I2C_M_RD, > - .len = sizeof(data), > + .len = WACOM_QUERY_SIZE - 1, > .buf = data, > }, > }; > @@ -158,9 +178,12 @@ static int wacom_query_device(struct i2c_client *client, > } > > dev_dbg(&client->dev, > - "x_max:%d, y_max:%d, pressure:%d, fw:%d\n", > + "x_max:%d, y_max:%d, pressure:%d, fw:%d, " > + "distance: %d, tilt_x_max: %d, tilt_y_max: %d\n", > features->x_max, features->y_max, > - features->pressure_max, features->fw_version); > + features->pressure_max, features->fw_version, > + features->distance_max, > + features->tilt_x_max, features->tilt_y_max); > > return 0; > } > -- > 2.31.1 >
diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c index d6036406a9f3..a35d8fda7e7b 100644 --- a/drivers/input/touchscreen/wacom_i2c.c +++ b/drivers/input/touchscreen/wacom_i2c.c @@ -13,16 +13,33 @@ #include <linux/irq.h> #include <linux/input/touchscreen.h> #include <linux/interrupt.h> +#include <linux/reset.h> #include <linux/of.h> #include <asm/unaligned.h> +// Registers #define WACOM_DESC_REG 0x01 -#define WACOM_CMD_QUERY0 0x04 -#define WACOM_CMD_QUERY1 0x00 -#define WACOM_CMD_QUERY2 0x33 -#define WACOM_CMD_QUERY3 0x02 -#define WACOM_CMD_THROW0 0x05 -#define WACOM_CMD_THROW1 0x00 +#define WACOM_COMMAND_LSB 0x04 +#define WACOM_COMMAND_MSB 0x00 + +#define WACOM_DATA_LSB 0x05 +#define WACOM_DATA_MSB 0x00 + +// Report types +#define REPORT_FEATURE 0x30 + +// Requests / operations +#define OPCODE_GET_REPORT 0x02 + +// Power settings +#define POWER_ON 0x00 +#define POWER_SLEEP 0x01 + +// Input report ids +#define WACOM_PEN_DATA_REPORT 2 +#define WACOM_SHINONOME_REPORT 26 + +#define WACOM_QUERY_REPORT 3 #define WACOM_QUERY_SIZE 22 #define WACOM_MAX_DATA_SIZE_BG9 10 @@ -85,27 +102,30 @@ static int wacom_query_device(struct i2c_client *client, { int ret; u8 cmd_wac_desc[] = {WACOM_DESC_REG, 0x00}; - u8 cmd1[] = { WACOM_CMD_QUERY0, WACOM_CMD_QUERY1, - WACOM_CMD_QUERY2, WACOM_CMD_QUERY3 }; - u8 cmd2[] = { WACOM_CMD_THROW0, WACOM_CMD_THROW1 }; u8 data[WACOM_QUERY_SIZE]; + + u8 get_query_data_cmd[] = { + WACOM_COMMAND_LSB, + WACOM_COMMAND_MSB, + REPORT_FEATURE | WACOM_QUERY_REPORT, + OPCODE_GET_REPORT, + WACOM_DATA_LSB, + WACOM_DATA_MSB, + }; + struct i2c_msg msgs[] = { + // Request reading of feature ReportID: 3 (Pen Query Data) { .addr = client->addr, .flags = 0, - .len = sizeof(cmd1), - .buf = cmd1, - }, - { - .addr = client->addr, - .flags = 0, - .len = sizeof(cmd2), - .buf = cmd2, + .len = sizeof(get_query_data_cmd), + .buf = get_query_data_cmd, }, + // Read 21 bytes { .addr = client->addr, .flags = I2C_M_RD, - .len = sizeof(data), + .len = WACOM_QUERY_SIZE - 1, .buf = data, }, }; @@ -158,9 +178,12 @@ static int wacom_query_device(struct i2c_client *client, } dev_dbg(&client->dev, - "x_max:%d, y_max:%d, pressure:%d, fw:%d\n", + "x_max:%d, y_max:%d, pressure:%d, fw:%d, " + "distance: %d, tilt_x_max: %d, tilt_y_max: %d\n", features->x_max, features->y_max, - features->pressure_max, features->fw_version); + features->pressure_max, features->fw_version, + features->distance_max, + features->tilt_x_max, features->tilt_y_max); return 0; }
Improve the query device fields to be more verbose. Signed-off-by: Alistair Francis <alistair@alistair23.me> --- drivers/input/touchscreen/wacom_i2c.c | 63 ++++++++++++++++++--------- 1 file changed, 43 insertions(+), 20 deletions(-)