| Message ID | 1475292168-20961-2-git-send-email-linux@roeck-us.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 09/30/2016 08:22 PM, Guenter Roeck wrote: > F54 diagnostics report functions provide data based on the number of > enabled rx and tx electrodes, which is not identical to the number of > electrodes reported with F54:Query0 and F54:Query1. Those values report > the number of supported electrodes, not the number of enabled electrodes. > The number of enabled electrodes can be determined by analyzing F55:Ctrl1 > (sensor receiver assignment) and F55:Ctrl2 (sensor transmitter assignment). > > Propagate the number of enabled electrodes from F55 to F54 to avoid > corrupted output if not all electrodes are enabled. > > Fixes: 3bbacb89704fi ("[media] Input: synaptics-rmi4 - add support for F54 ...") > Cc: Nick Dyer <nick@shmanahar.org> > Cc: Andrew Duggan <aduggan@synaptics.com> > Cc: Chris Healy <cphealy@gmail.com> > Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andrew Duggan <aduggan@synaptics.com> > --- > Notes: > - The Fixes: SHA might not be accurate if the originating branch is rebased. > - This patch depends on the preceding patch (which, strictly speaking, does > not fix anything). > > drivers/input/rmi4/Kconfig | 1 + > drivers/input/rmi4/rmi_f54.c | 14 ++++++++++---- > drivers/input/rmi4/rmi_f55.c | 7 +++++++ > include/linux/rmi.h | 3 +++ > 4 files changed, 21 insertions(+), 4 deletions(-) > > diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig > index 11ede43c9936..d7129928cde6 100644 > --- a/drivers/input/rmi4/Kconfig > +++ b/drivers/input/rmi4/Kconfig > @@ -67,6 +67,7 @@ config RMI4_F54 > depends on RMI4_CORE > depends on VIDEO_V4L2=y || (RMI4_CORE=m && VIDEO_V4L2=m) > select VIDEOBUF2_VMALLOC > + select RMI4_F55 > help > Say Y here if you want to add support for RMI4 function 54 > > diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c > index cf805b960866..9cb3aa733f0f 100644 > --- a/drivers/input/rmi4/rmi_f54.c > +++ b/drivers/input/rmi4/rmi_f54.c > @@ -216,8 +216,10 @@ static int rmi_f54_request_report(struct rmi_function *fn, u8 report_type) > > static size_t rmi_f54_get_report_size(struct f54_data *f54) > { > - u8 rx = f54->num_rx_electrodes ? : f54->num_rx_electrodes; > - u8 tx = f54->num_tx_electrodes ? : f54->num_tx_electrodes; > + struct rmi_device *rmi_dev = f54->fn->rmi_dev; > + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); > + u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes; > + u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes; > size_t size; > > switch (rmi_f54_get_reptype(f54, f54->input)) { > @@ -401,6 +403,10 @@ static int rmi_f54_vidioc_enum_input(struct file *file, void *priv, > > static int rmi_f54_set_input(struct f54_data *f54, unsigned int i) > { > + struct rmi_device *rmi_dev = f54->fn->rmi_dev; > + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); > + u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes; > + u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes; > struct v4l2_pix_format *f = &f54->format; > enum rmi_f54_report_type reptype; > int ret; > @@ -415,8 +421,8 @@ static int rmi_f54_set_input(struct f54_data *f54, unsigned int i) > > f54->input = i; > > - f->width = f54->num_rx_electrodes; > - f->height = f54->num_tx_electrodes; > + f->width = rx; > + f->height = tx; > f->field = V4L2_FIELD_NONE; > f->colorspace = V4L2_COLORSPACE_RAW; > f->bytesperline = f->width * sizeof(u16); > diff --git a/drivers/input/rmi4/rmi_f55.c b/drivers/input/rmi4/rmi_f55.c > index 268fa904205a..b95a5d60ba96 100644 > --- a/drivers/input/rmi4/rmi_f55.c > +++ b/drivers/input/rmi4/rmi_f55.c > @@ -41,6 +41,8 @@ struct f55_data { > > static int rmi_f55_detect(struct rmi_function *fn) > { > + struct rmi_device *rmi_dev = fn->rmi_dev; > + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); > struct f55_data *f55; > int error; > > @@ -60,6 +62,9 @@ static int rmi_f55_detect(struct rmi_function *fn) > f55->cfg_num_rx_electrodes = f55->num_rx_electrodes; > f55->cfg_num_tx_electrodes = f55->num_rx_electrodes; > > + drv_data->num_rx_electrodes = f55->cfg_num_rx_electrodes; > + drv_data->num_tx_electrodes = f55->cfg_num_rx_electrodes; > + > if (f55->qry[F55_PHYS_CHAR_OFFSET] & F55_CAP_SENSOR_ASSIGN) { > int i, total; > u8 buf[256]; > @@ -81,6 +86,7 @@ static int rmi_f55_detect(struct rmi_function *fn) > total++; > } > f55->cfg_num_rx_electrodes = total; > + drv_data->num_rx_electrodes = total; > } > > error = rmi_read_block(fn->rmi_dev, > @@ -93,6 +99,7 @@ static int rmi_f55_detect(struct rmi_function *fn) > total++; > } > f55->cfg_num_tx_electrodes = total; > + drv_data->num_tx_electrodes = total; > } > } > > diff --git a/include/linux/rmi.h b/include/linux/rmi.h > index e0aca1476001..45734f1343b3 100644 > --- a/include/linux/rmi.h > +++ b/include/linux/rmi.h > @@ -345,6 +345,9 @@ struct rmi_driver_data { > u8 pdt_props; > u8 bsr; > > + u8 num_rx_electrodes; > + u8 num_tx_electrodes; > + > bool enabled; > > void *data; -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig index 11ede43c9936..d7129928cde6 100644 --- a/drivers/input/rmi4/Kconfig +++ b/drivers/input/rmi4/Kconfig @@ -67,6 +67,7 @@ config RMI4_F54 depends on RMI4_CORE depends on VIDEO_V4L2=y || (RMI4_CORE=m && VIDEO_V4L2=m) select VIDEOBUF2_VMALLOC + select RMI4_F55 help Say Y here if you want to add support for RMI4 function 54 diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c index cf805b960866..9cb3aa733f0f 100644 --- a/drivers/input/rmi4/rmi_f54.c +++ b/drivers/input/rmi4/rmi_f54.c @@ -216,8 +216,10 @@ static int rmi_f54_request_report(struct rmi_function *fn, u8 report_type) static size_t rmi_f54_get_report_size(struct f54_data *f54) { - u8 rx = f54->num_rx_electrodes ? : f54->num_rx_electrodes; - u8 tx = f54->num_tx_electrodes ? : f54->num_tx_electrodes; + struct rmi_device *rmi_dev = f54->fn->rmi_dev; + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); + u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes; + u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes; size_t size; switch (rmi_f54_get_reptype(f54, f54->input)) { @@ -401,6 +403,10 @@ static int rmi_f54_vidioc_enum_input(struct file *file, void *priv, static int rmi_f54_set_input(struct f54_data *f54, unsigned int i) { + struct rmi_device *rmi_dev = f54->fn->rmi_dev; + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); + u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes; + u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes; struct v4l2_pix_format *f = &f54->format; enum rmi_f54_report_type reptype; int ret; @@ -415,8 +421,8 @@ static int rmi_f54_set_input(struct f54_data *f54, unsigned int i) f54->input = i; - f->width = f54->num_rx_electrodes; - f->height = f54->num_tx_electrodes; + f->width = rx; + f->height = tx; f->field = V4L2_FIELD_NONE; f->colorspace = V4L2_COLORSPACE_RAW; f->bytesperline = f->width * sizeof(u16); diff --git a/drivers/input/rmi4/rmi_f55.c b/drivers/input/rmi4/rmi_f55.c index 268fa904205a..b95a5d60ba96 100644 --- a/drivers/input/rmi4/rmi_f55.c +++ b/drivers/input/rmi4/rmi_f55.c @@ -41,6 +41,8 @@ struct f55_data { static int rmi_f55_detect(struct rmi_function *fn) { + struct rmi_device *rmi_dev = fn->rmi_dev; + struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev); struct f55_data *f55; int error; @@ -60,6 +62,9 @@ static int rmi_f55_detect(struct rmi_function *fn) f55->cfg_num_rx_electrodes = f55->num_rx_electrodes; f55->cfg_num_tx_electrodes = f55->num_rx_electrodes; + drv_data->num_rx_electrodes = f55->cfg_num_rx_electrodes; + drv_data->num_tx_electrodes = f55->cfg_num_rx_electrodes; + if (f55->qry[F55_PHYS_CHAR_OFFSET] & F55_CAP_SENSOR_ASSIGN) { int i, total; u8 buf[256]; @@ -81,6 +86,7 @@ static int rmi_f55_detect(struct rmi_function *fn) total++; } f55->cfg_num_rx_electrodes = total; + drv_data->num_rx_electrodes = total; } error = rmi_read_block(fn->rmi_dev, @@ -93,6 +99,7 @@ static int rmi_f55_detect(struct rmi_function *fn) total++; } f55->cfg_num_tx_electrodes = total; + drv_data->num_tx_electrodes = total; } } diff --git a/include/linux/rmi.h b/include/linux/rmi.h index e0aca1476001..45734f1343b3 100644 --- a/include/linux/rmi.h +++ b/include/linux/rmi.h @@ -345,6 +345,9 @@ struct rmi_driver_data { u8 pdt_props; u8 bsr; + u8 num_rx_electrodes; + u8 num_tx_electrodes; + bool enabled; void *data;
F54 diagnostics report functions provide data based on the number of enabled rx and tx electrodes, which is not identical to the number of electrodes reported with F54:Query0 and F54:Query1. Those values report the number of supported electrodes, not the number of enabled electrodes. The number of enabled electrodes can be determined by analyzing F55:Ctrl1 (sensor receiver assignment) and F55:Ctrl2 (sensor transmitter assignment). Propagate the number of enabled electrodes from F55 to F54 to avoid corrupted output if not all electrodes are enabled. Fixes: 3bbacb89704fi ("[media] Input: synaptics-rmi4 - add support for F54 ...") Cc: Nick Dyer <nick@shmanahar.org> Cc: Andrew Duggan <aduggan@synaptics.com> Cc: Chris Healy <cphealy@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- Notes: - The Fixes: SHA might not be accurate if the originating branch is rebased. - This patch depends on the preceding patch (which, strictly speaking, does not fix anything). drivers/input/rmi4/Kconfig | 1 + drivers/input/rmi4/rmi_f54.c | 14 ++++++++++---- drivers/input/rmi4/rmi_f55.c | 7 +++++++ include/linux/rmi.h | 3 +++ 4 files changed, 21 insertions(+), 4 deletions(-)