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| author | Maciej S. Szmigiero <mail@maciej.szmigiero.name> | 2019-04-29 19:16:57 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-05-28 22:59:19 +0300 |
| commit | d525e5c2f1b7f3bf198aeb56b039a682de4b00df (patch) | |
| tree | 218547c8ab823737b3b8b5cb6d3c35be7e0563c8 /drivers/media/usb/dvb-usb/cxusb.h | |
| parent | 65efeca0a6411139fc1956805f6334f3decc3c1b (diff) | |
| download | linux-d525e5c2f1b7f3bf198aeb56b039a682de4b00df.tar.xz | |
media: cxusb: implement Medion MD95700 digital / analog coexistence
This patch prepares cxusb driver for supporting the analog part of
Medion 95700 (previously only the digital - DVB - mode was supported).
Specifically, it adds support for:
* switching the device between analog and digital modes of operation,
* enforcing that only one mode is active at the same time due to hardware
limitations.
Actual implementation of the analog mode will be provided by the next
commit.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/usb/dvb-usb/cxusb.h')
| -rw-r--r-- | drivers/media/usb/dvb-usb/cxusb.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/cxusb.h b/drivers/media/usb/dvb-usb/cxusb.h index 88f9b9804b25..f586d61a7bf8 100644 --- a/drivers/media/usb/dvb-usb/cxusb.h +++ b/drivers/media/usb/dvb-usb/cxusb.h @@ -2,6 +2,9 @@ #ifndef _DVB_USB_CXUSB_H_ #define _DVB_USB_CXUSB_H_ +#include <linux/i2c.h> +#include <linux/mutex.h> + #define DVB_USB_LOG_PREFIX "cxusb" #include "dvb-usb.h" @@ -34,6 +37,7 @@ struct cxusb_state { u8 gpio_write_state[3]; + bool gpio_write_refresh[3]; struct i2c_client *i2c_client_demod; struct i2c_client *i2c_client_tuner; @@ -45,4 +49,48 @@ struct cxusb_state { enum fe_status *status); }; +enum cxusb_open_type { + CXUSB_OPEN_INIT, CXUSB_OPEN_NONE, + CXUSB_OPEN_ANALOG, CXUSB_OPEN_DIGITAL +}; + +struct cxusb_medion_dev { + /* has to be the first one */ + struct cxusb_state state; + + struct dvb_usb_device *dvbdev; + + enum cxusb_open_type open_type; + unsigned int open_ctr; + struct mutex open_lock; +}; + +/* defines for "debug" module parameter */ +#define CXUSB_DBG_RC BIT(0) +#define CXUSB_DBG_I2C BIT(1) +#define CXUSB_DBG_MISC BIT(2) + +extern int dvb_usb_cxusb_debug; + +int cxusb_ctrl_msg(struct dvb_usb_device *d, + u8 cmd, const u8 *wbuf, int wlen, u8 *rbuf, int rlen); + +static inline int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev) +{ + return -EINVAL; +} + +static inline int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev) +{ + return 0; +} + +static inline void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev) +{ +} + +int cxusb_medion_get(struct dvb_usb_device *dvbdev, + enum cxusb_open_type open_type); +void cxusb_medion_put(struct dvb_usb_device *dvbdev); + #endif |