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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2012-05-11 17:25:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-11 16:52:10 -0700 |
| commit | 5f36e231e9dbffb5264612e5b5817ab574a5e5db (patch) | |
| tree | a71027cded532334d3d51cbf737925240d34e7df /drivers/usb/chipidea/bits.h | |
| parent | e443b333629f82ca0da91a05ca638050943bbedd (diff) | |
| download | linux-5f36e231e9dbffb5264612e5b5817ab574a5e5db.tar.gz linux-5f36e231e9dbffb5264612e5b5817ab574a5e5db.tar.bz2 linux-5f36e231e9dbffb5264612e5b5817ab574a5e5db.zip | |
usb: chipidea: add support for roles
Add some generic code for roles and implement simple role switching
based on ID pin state and/or a sysfs file. At this, we also rename
the device to ci_hdrc, which is what it is.
The "manual" switch is made into a sysfs file and not debugfs, because
it might be useful even in non-debug context. For some boards, like
sheevaplug, it seems to be the only way to switch roles without modifying
the hardware, since the ID pin is always grounded.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/bits.h')
| -rw-r--r-- | drivers/usb/chipidea/bits.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index 5fbff11cf220..62c35af1a5af 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -50,6 +50,24 @@ #define DEVLC_PSPD (0x03UL << 25) #define DEVLC_PSPD_HS (0x02UL << 25) +/* OTGSC */ +#define OTGSC_IDPU BIT(5) +#define OTGSC_ID BIT(8) +#define OTGSC_AVV BIT(9) +#define OTGSC_ASV BIT(10) +#define OTGSC_BSV BIT(11) +#define OTGSC_BSE BIT(12) +#define OTGSC_IDIS BIT(16) +#define OTGSC_AVVIS BIT(17) +#define OTGSC_ASVIS BIT(18) +#define OTGSC_BSVIS BIT(19) +#define OTGSC_BSEIS BIT(20) +#define OTGSC_IDIE BIT(24) +#define OTGSC_AVVIE BIT(25) +#define OTGSC_ASVIE BIT(26) +#define OTGSC_BSVIE BIT(27) +#define OTGSC_BSEIE BIT(28) + /* USBMODE */ #define USBMODE_CM (0x03UL << 0) #define USBMODE_CM_IDLE (0x00UL << 0) |