On Mon, Jan 28, 2019 at 12:37:26PM -0800, Ajay Gupta wrote:
> Function is to get the details of ccg firmware and device version.
> It will be useful in debugging and also during firmware update.
>
> Signed-off-by: Ajay Gupta <[email protected]>
> ---
> Changes from v1:
> - Updated commit message
> - Dropped uses of bitfield
> - Removed dev_dbg prints
>
> drivers/usb/typec/ucsi/ucsi_ccg.c | 58 +++++++++++++++++++++++++++++--
> 1 file changed, 56 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c
> b/drivers/usb/typec/ucsi/ucsi_ccg.c
> index de8a43bdff68..76cf772872db 100644
> --- a/drivers/usb/typec/ucsi/ucsi_ccg.c
> +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
> @@ -17,15 +17,46 @@
> #include <asm/unaligned.h>
> #include "ucsi.h"
>
> +struct ccg_dev_info {
> +#define CCG_DEVINFO_FWMODE_SHIFT (0)
> +#define CCG_DEVINFO_FWMODE_MASK (0x3 << CCG_DEVINFO_FWMODE_SHIFT)
> +#define CCG_DEVINFO_PDPORTS_SHIFT (2)
> +#define CCG_DEVINFO_PDPORTS_MASK (0x3 << CCG_DEVINFO_PDPORTS_SHIFT)
> + u8 mode;
> + u8 bl_mode;
> + u16 silicon_id;
> + u16 bl_last_row;
__le16 I am guessing for both of these?
> +};
Should this be a packed structure?
> +
> +struct version_format {
> + u16 build;
__le16?
> + u8 patch;
> + u8 ver;
> +#define CCG_VERSION_MIN_SHIFT (0)
> +#define CCG_VERSION_MIN_MASK (0xf << CCG_VERSION_MIN_SHIFT)
> +#define CCG_VERSION_MAJ_SHIFT (4)
> +#define CCG_VERSION_MAJ_MASK (0xf << CCG_VERSION_MAJ_SHIFT)
> +};
Also, packed?
> +
> +struct version_info {
> + struct version_format base;
> + struct version_format app;
> +};
> +
> struct ucsi_ccg {
> struct device *dev;
> struct ucsi *ucsi;
> struct ucsi_ppm ppm;
> struct i2c_client *client;
> + struct ccg_dev_info info;
> + struct version_info version[3];
3 versions? Any hint as to what they are all "called"?
thanks,
greg k-h
