diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_regs.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_regs.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index d382c34c1b9e..55677bd50f66 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -561,16 +561,129 @@ # define VC4_HDMI_VERTB_VBP_MASK VC4_MASK(8, 0) # define VC4_HDMI_VERTB_VBP_SHIFT 0 +#define VC4_HDMI_CEC_CNTRL_1 0x0e8 +/* Set when the transmission has ended. */ +# define VC4_HDMI_CEC_TX_EOM BIT(31) +/* If set, transmission was acked on the 1st or 2nd attempt (only one + * retry is attempted). If in continuous mode, this means TX needs to + * be filled if !TX_EOM. + */ +# define VC4_HDMI_CEC_TX_STATUS_GOOD BIT(30) +# define VC4_HDMI_CEC_RX_EOM BIT(29) +# define VC4_HDMI_CEC_RX_STATUS_GOOD BIT(28) +/* Number of bytes received for the message. */ +# define VC4_HDMI_CEC_REC_WRD_CNT_MASK VC4_MASK(27, 24) +# define VC4_HDMI_CEC_REC_WRD_CNT_SHIFT 24 +/* Sets continuous receive mode. Generates interrupt after each 8 + * bytes to signal that RX_DATA should be consumed, and at RX_EOM. + * + * If disabled, maximum 16 bytes will be received (including header), + * and interrupt at RX_EOM. Later bytes will be acked but not put + * into the RX_DATA. + */ +# define VC4_HDMI_CEC_RX_CONTINUE BIT(23) +# define VC4_HDMI_CEC_TX_CONTINUE BIT(22) +/* Set this after a CEC interrupt. */ +# define VC4_HDMI_CEC_CLEAR_RECEIVE_OFF BIT(21) +/* Starts a TX. Will wait for appropriate idel time before CEC + * activity. Must be cleared in between transmits. + */ +# define VC4_HDMI_CEC_START_XMIT_BEGIN BIT(20) +# define VC4_HDMI_CEC_MESSAGE_LENGTH_MASK VC4_MASK(19, 16) +# define VC4_HDMI_CEC_MESSAGE_LENGTH_SHIFT 16 +/* Device's CEC address */ +# define VC4_HDMI_CEC_ADDR_MASK VC4_MASK(15, 12) +# define VC4_HDMI_CEC_ADDR_SHIFT 12 +/* Divides off of HSM clock to generate CEC bit clock. */ +/* With the current defaults the CEC bit clock is 40 kHz = 25 usec */ +# define VC4_HDMI_CEC_DIV_CLK_CNT_MASK VC4_MASK(11, 0) +# define VC4_HDMI_CEC_DIV_CLK_CNT_SHIFT 0 + +/* Set these fields to how many bit clock cycles get to that many + * microseconds. + */ +#define VC4_HDMI_CEC_CNTRL_2 0x0ec +# define VC4_HDMI_CEC_CNT_TO_1500_US_MASK VC4_MASK(30, 24) +# define VC4_HDMI_CEC_CNT_TO_1500_US_SHIFT 24 +# define VC4_HDMI_CEC_CNT_TO_1300_US_MASK VC4_MASK(23, 17) +# define VC4_HDMI_CEC_CNT_TO_1300_US_SHIFT 17 +# define VC4_HDMI_CEC_CNT_TO_800_US_MASK VC4_MASK(16, 11) +# define VC4_HDMI_CEC_CNT_TO_800_US_SHIFT 11 +# define VC4_HDMI_CEC_CNT_TO_600_US_MASK VC4_MASK(10, 5) +# define VC4_HDMI_CEC_CNT_TO_600_US_SHIFT 5 +# define VC4_HDMI_CEC_CNT_TO_400_US_MASK VC4_MASK(4, 0) +# define VC4_HDMI_CEC_CNT_TO_400_US_SHIFT 0 + +#define VC4_HDMI_CEC_CNTRL_3 0x0f0 +# define VC4_HDMI_CEC_CNT_TO_2750_US_MASK VC4_MASK(31, 24) +# define VC4_HDMI_CEC_CNT_TO_2750_US_SHIFT 24 +# define VC4_HDMI_CEC_CNT_TO_2400_US_MASK VC4_MASK(23, 16) +# define VC4_HDMI_CEC_CNT_TO_2400_US_SHIFT 16 +# define VC4_HDMI_CEC_CNT_TO_2050_US_MASK VC4_MASK(15, 8) +# define VC4_HDMI_CEC_CNT_TO_2050_US_SHIFT 8 +# define VC4_HDMI_CEC_CNT_TO_1700_US_MASK VC4_MASK(7, 0) +# define VC4_HDMI_CEC_CNT_TO_1700_US_SHIFT 0 + +#define VC4_HDMI_CEC_CNTRL_4 0x0f4 +# define VC4_HDMI_CEC_CNT_TO_4300_US_MASK VC4_MASK(31, 24) +# define VC4_HDMI_CEC_CNT_TO_4300_US_SHIFT 24 +# define VC4_HDMI_CEC_CNT_TO_3900_US_MASK VC4_MASK(23, 16) +# define VC4_HDMI_CEC_CNT_TO_3900_US_SHIFT 16 +# define VC4_HDMI_CEC_CNT_TO_3600_US_MASK VC4_MASK(15, 8) +# define VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT 8 +# define VC4_HDMI_CEC_CNT_TO_3500_US_MASK VC4_MASK(7, 0) +# define VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT 0 + +#define VC4_HDMI_CEC_CNTRL_5 0x0f8 +# define VC4_HDMI_CEC_TX_SW_RESET BIT(27) +# define VC4_HDMI_CEC_RX_SW_RESET BIT(26) +# define VC4_HDMI_CEC_PAD_SW_RESET BIT(25) +# define VC4_HDMI_CEC_MUX_TP_OUT_CEC BIT(24) +# define VC4_HDMI_CEC_RX_CEC_INT BIT(23) +# define VC4_HDMI_CEC_CLK_PRELOAD_MASK VC4_MASK(22, 16) +# define VC4_HDMI_CEC_CLK_PRELOAD_SHIFT 16 +# define VC4_HDMI_CEC_CNT_TO_4700_US_MASK VC4_MASK(15, 8) +# define VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT 8 +# define VC4_HDMI_CEC_CNT_TO_4500_US_MASK VC4_MASK(7, 0) +# define VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT 0 + +/* Transmit data, first byte is low byte of the 32-bit reg. MSB of + * each byte transmitted first. + */ +#define VC4_HDMI_CEC_TX_DATA_1 0x0fc +#define VC4_HDMI_CEC_TX_DATA_2 0x100 +#define VC4_HDMI_CEC_TX_DATA_3 0x104 +#define VC4_HDMI_CEC_TX_DATA_4 0x108 +#define VC4_HDMI_CEC_RX_DATA_1 0x10c +#define VC4_HDMI_CEC_RX_DATA_2 0x110 +#define VC4_HDMI_CEC_RX_DATA_3 0x114 +#define VC4_HDMI_CEC_RX_DATA_4 0x118 + #define VC4_HDMI_TX_PHY_RESET_CTL 0x2c0 #define VC4_HDMI_TX_PHY_CTL0 0x2c4 # define VC4_HDMI_TX_PHY_RNG_PWRDN BIT(25) +/* Interrupt status bits */ +#define VC4_HDMI_CPU_STATUS 0x340 +#define VC4_HDMI_CPU_SET 0x344 +#define VC4_HDMI_CPU_CLEAR 0x348 +# define VC4_HDMI_CPU_CEC BIT(6) +# define VC4_HDMI_CPU_HOTPLUG BIT(0) + +#define VC4_HDMI_CPU_MASK_STATUS 0x34c +#define VC4_HDMI_CPU_MASK_SET 0x350 +#define VC4_HDMI_CPU_MASK_CLEAR 0x354 + #define VC4_HDMI_GCP(x) (0x400 + ((x) * 0x4)) #define VC4_HDMI_RAM_PACKET(x) (0x400 + ((x) * 0x24)) #define VC4_HDMI_PACKET_STRIDE 0x24 #define VC4_HD_M_CTL 0x00c +/* Debug: Current receive value on the CEC pad. */ +# define VC4_HD_CECRXD BIT(9) +/* Debug: Override CEC output to 0. */ +# define VC4_HD_CECOVR BIT(8) # define VC4_HD_M_REGISTER_FILE_STANDBY (3 << 6) # define VC4_HD_M_RAM_STANDBY (3 << 4) # define VC4_HD_M_SW_RST BIT(2) |