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drm/cec: Add CEC over Aux register definitions

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Adding DPCD register definitions from the DP 1.3 specification for CEC
over AUX support.

V2: Add DP_ prefix to all defines.
V3: missed prefixes from the ESI1 defines

Cc: Jani Nikula <jani.nikula@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1492703263-11494-1-git-send-email-clinton.a.taylor@intel.com
This commit is contained in:
Clint Taylor 2017-04-20 08:47:43 -07:00 committed by Jani Nikula
parent ab6a46ea68
commit d753e41d47
1 changed files with 59 additions and 0 deletions
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59
include/drm/drm_dp_helper.h
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@ -710,6 +710,9 @@
#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0 0x2003 /* 1.2 */
#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI1 0x2004 /* 1.2 */
# define DP_RX_GTC_MSTR_REQ_STATUS_CHANGE (1 << 0)
# define DP_LOCK_ACQUISITION_REQUEST (1 << 1)
# define DP_CEC_IRQ (1 << 2)
#define DP_LINK_SERVICE_IRQ_VECTOR_ESI0 0x2005 /* 1.2 */
@ -743,6 +746,62 @@
# define DP_VSC_EXT_CEA_SDP_SUPPORTED (1 << 6) /* DP 1.4 */
# define DP_VSC_EXT_CEA_SDP_CHAINING_SUPPORTED (1 << 7) /* DP 1.4 */
/* HDMI CEC tunneling over AUX DP 1.3 section 5.3.3.3.1 DPCD 1.4+ */
#define DP_CEC_TUNNELING_CAPABILITY 0x3000
# define DP_CEC_TUNNELING_CAPABLE (1 << 0)
# define DP_CEC_SNOOPING_CAPABLE (1 << 1)
# define DP_CEC_MULTIPLE_LA_CAPABLE (1 << 2)
#define DP_CEC_TUNNELING_CONTROL 0x3001
# define DP_CEC_TUNNELING_ENABLE (1 << 0)
# define DP_CEC_SNOOPING_ENABLE (1 << 1)
#define DP_CEC_RX_MESSAGE_INFO 0x3002
# define DP_CEC_RX_MESSAGE_LEN_MASK (0xf << 0)
# define DP_CEC_RX_MESSAGE_LEN_SHIFT 0
# define DP_CEC_RX_MESSAGE_HPD_STATE (1 << 4)
# define DP_CEC_RX_MESSAGE_HPD_LOST (1 << 5)
# define DP_CEC_RX_MESSAGE_ACKED (1 << 6)
# define DP_CEC_RX_MESSAGE_ENDED (1 << 7)
#define DP_CEC_TX_MESSAGE_INFO 0x3003
# define DP_CEC_TX_MESSAGE_LEN_MASK (0xf << 0)
# define DP_CEC_TX_MESSAGE_LEN_SHIFT 0
# define DP_CEC_TX_RETRY_COUNT_MASK (0x7 << 4)
# define DP_CEC_TX_RETRY_COUNT_SHIFT 4
# define DP_CEC_TX_MESSAGE_SEND (1 << 7)
#define DP_CEC_TUNNELING_IRQ_FLAGS 0x3004
# define DP_CEC_RX_MESSAGE_INFO_VALID (1 << 0)
# define DP_CEC_RX_MESSAGE_OVERFLOW (1 << 1)
# define DP_CEC_TX_MESSAGE_SENT (1 << 4)
# define DP_CEC_TX_LINE_ERROR (1 << 5)
# define DP_CEC_TX_ADDRESS_NACK_ERROR (1 << 6)
# define DP_CEC_TX_DATA_NACK_ERROR (1 << 7)
#define DP_CEC_LOGICAL_ADDRESS_MASK 0x300E /* 0x300F word */
# define DP_CEC_LOGICAL_ADDRESS_0 (1 << 0)
# define DP_CEC_LOGICAL_ADDRESS_1 (1 << 1)
# define DP_CEC_LOGICAL_ADDRESS_2 (1 << 2)
# define DP_CEC_LOGICAL_ADDRESS_3 (1 << 3)
# define DP_CEC_LOGICAL_ADDRESS_4 (1 << 4)
# define DP_CEC_LOGICAL_ADDRESS_5 (1 << 5)
# define DP_CEC_LOGICAL_ADDRESS_6 (1 << 6)
# define DP_CEC_LOGICAL_ADDRESS_7 (1 << 7)
#define DP_CEC_LOGICAL_ADDRESS_MASK_2 0x300F /* 0x300E word */
# define DP_CEC_LOGICAL_ADDRESS_8 (1 << 0)
# define DP_CEC_LOGICAL_ADDRESS_9 (1 << 1)
# define DP_CEC_LOGICAL_ADDRESS_10 (1 << 2)
# define DP_CEC_LOGICAL_ADDRESS_11 (1 << 3)
# define DP_CEC_LOGICAL_ADDRESS_12 (1 << 4)
# define DP_CEC_LOGICAL_ADDRESS_13 (1 << 5)
# define DP_CEC_LOGICAL_ADDRESS_14 (1 << 6)
# define DP_CEC_LOGICAL_ADDRESS_15 (1 << 7)
#define DP_CEC_RX_MESSAGE_BUFFER 0x3010
#define DP_CEC_TX_MESSAGE_BUFFER 0x3020
#define DP_CEC_MESSAGE_BUFFER_LENGTH 0x10
/* DP 1.2 Sideband message defines */
/* peer device type - DP 1.2a Table 2-92 */
#define DP_PEER_DEVICE_NONE 0x0