/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2016 Maxime Ripard * * Maxime Ripard */ #ifndef _SUN4I_HDMI_H_ #define _SUN4I_HDMI_H_ #include #include #include #include #define SUN4I_HDMI_CTRL_REG 0x004 #define SUN4I_HDMI_CTRL_ENABLE BIT(31) #define SUN4I_HDMI_IRQ_REG 0x008 #define SUN4I_HDMI_IRQ_STA_MASK 0x73 #define SUN4I_HDMI_IRQ_STA_FIFO_OF BIT(1) #define SUN4I_HDMI_IRQ_STA_FIFO_UF BIT(0) #define SUN4I_HDMI_HPD_REG 0x00c #define SUN4I_HDMI_HPD_HIGH BIT(0) #define SUN4I_HDMI_VID_CTRL_REG 0x010 #define SUN4I_HDMI_VID_CTRL_ENABLE BIT(31) #define SUN4I_HDMI_VID_CTRL_HDMI_MODE BIT(30) #define SUN4I_HDMI_VID_TIMING_ACT_REG 0x014 #define SUN4I_HDMI_VID_TIMING_BP_REG 0x018 #define SUN4I_HDMI_VID_TIMING_FP_REG 0x01c #define SUN4I_HDMI_VID_TIMING_SPW_REG 0x020 #define SUN4I_HDMI_VID_TIMING_X(x) ((((x) - 1) & GENMASK(11, 0))) #define SUN4I_HDMI_VID_TIMING_Y(y) ((((y) - 1) & GENMASK(11, 0)) << 16) #define SUN4I_HDMI_VID_TIMING_POL_REG 0x024 #define SUN4I_HDMI_VID_TIMING_POL_TX_CLK (0x3e0 << 16) #define SUN4I_HDMI_VID_TIMING_POL_VSYNC BIT(1) #define SUN4I_HDMI_VID_TIMING_POL_HSYNC BIT(0) #define SUN4I_HDMI_AVI_INFOFRAME_REG(n) (0x080 + (n)) #define SUN4I_HDMI_PAD_CTRL0_REG 0x200 #define SUN4I_HDMI_PAD_CTRL0_BIASEN BIT(31) #define SUN4I_HDMI_PAD_CTRL0_LDOCEN BIT(30) #define SUN4I_HDMI_PAD_CTRL0_LDODEN BIT(29) #define SUN4I_HDMI_PAD_CTRL0_PWENC BIT(28) #define SUN4I_HDMI_PAD_CTRL0_PWEND BIT(27) #define SUN4I_HDMI_PAD_CTRL0_PWENG BIT(26) #define SUN4I_HDMI_PAD_CTRL0_CKEN BIT(25) #define SUN4I_HDMI_PAD_CTRL0_TXEN BIT(23) #define SUN4I_HDMI_PAD_CTRL1_REG 0x204 #define SUN4I_HDMI_PAD_CTRL1_UNKNOWN BIT(24) /* set on A31 */ #define SUN4I_HDMI_PAD_CTRL1_AMP_OPT BIT(23) #define SUN4I_HDMI_PAD_CTRL1_AMPCK_OPT BIT(22) #define SUN4I_HDMI_PAD_CTRL1_EMP_OPT BIT(20) #define SUN4I_HDMI_PAD_CTRL1_EMPCK_OPT BIT(19) #define SUN4I_HDMI_PAD_CTRL1_PWSCK BIT(18) #define SUN4I_HDMI_PAD_CTRL1_PWSDT BIT(17) #define SUN4I_HDMI_PAD_CTRL1_REG_DEN BIT(15) #define SUN4I_HDMI_PAD_CTRL1_REG_DENCK BIT(14) #define SUN4I_HDMI_PAD_CTRL1_REG_EMP(n) (((n) & 7) << 10) #define SUN4I_HDMI_PAD_CTRL1_HALVE_CLK BIT(6) #define SUN4I_HDMI_PAD_CTRL1_REG_AMP(n) (((n) & 7) << 3) /* These bits seem to invert the TMDS data channels */ #define SUN4I_HDMI_PAD_CTRL1_INVERT_R BIT(2) #define SUN4I_HDMI_PAD_CTRL1_INVERT_G BIT(1) #define SUN4I_HDMI_PAD_CTRL1_INVERT_B BIT(0) #define SUN4I_HDMI_PLL_CTRL_REG 0x208 #define SUN4I_HDMI_PLL_CTRL_PLL_EN BIT(31) #define SUN4I_HDMI_PLL_CTRL_BWS BIT(30) #define SUN4I_HDMI_PLL_CTRL_HV_IS_33 BIT(29) #define SUN4I_HDMI_PLL_CTRL_LDO1_EN BIT(28) #define SUN4I_HDMI_PLL_CTRL_LDO2_EN BIT(27) #define SUN4I_HDMI_PLL_CTRL_SDIV2 BIT(25) #define SUN4I_HDMI_PLL_CTRL_VCO_GAIN(n) (((n) & 7) << 20) #define SUN4I_HDMI_PLL_CTRL_S(n) (((n) & 7) << 17) #define SUN4I_HDMI_PLL_CTRL_CP_S(n) (((n) & 0x1f) << 12) #define SUN4I_HDMI_PLL_CTRL_CS(n) (((n) & 0xf) << 8) #define SUN4I_HDMI_PLL_CTRL_DIV(n) (((n) & 0xf) << 4) #define SUN4I_HDMI_PLL_CTRL_DIV_MASK GENMASK(7, 4) #define SUN4I_HDMI_PLL_CTRL_VCO_S(n) ((n) & 0xf) #define SUN4I_HDMI_PLL_DBG0_REG 0x20c #define SUN4I_HDMI_PLL_DBG0_TMDS_PARENT(n) (((n) & 1) << 21) #define SUN4I_HDMI_PLL_DBG0_TMDS_PARENT_MASK BIT(21) #define SUN4I_HDMI_PLL_DBG0_TMDS_PARENT_SHIFT 21 #define SUN4I_HDMI_CEC 0x214 #define SUN4I_HDMI_CEC_ENABLE BIT(11) #define SUN4I_HDMI_CEC_TX BIT(9) #define SUN4I_HDMI_CEC_RX BIT(8) #define SUN4I_HDMI_PKT_CTRL_REG(n) (0x2f0 + (4 * (n))) #define SUN4I_HDMI_PKT_CTRL_TYPE(n, t) ((t) << (((n) % 4) * 4)) #define SUN4I_HDMI_UNKNOWN_REG 0x300 #define SUN4I_HDMI_UNKNOWN_INPUT_SYNC BIT(27) #define SUN4I_HDMI_DDC_CTRL_REG 0x500 #define SUN4I_HDMI_DDC_CTRL_ENABLE BIT(31) #define SUN4I_HDMI_DDC_CTRL_START_CMD BIT(30) #define SUN4I_HDMI_DDC_CTRL_FIFO_DIR_MASK BIT(8) #define SUN4I_HDMI_DDC_CTRL_FIFO_DIR_WRITE (1 << 8) #define SUN4I_HDMI_DDC_CTRL_FIFO_DIR_READ (0 << 8) #define SUN4I_HDMI_DDC_CTRL_RESET BIT(0) #define SUN4I_HDMI_DDC_ADDR_REG 0x504 #define SUN4I_HDMI_DDC_ADDR_SEGMENT(seg) (((seg) & 0xff) << 24) #define SUN4I_HDMI_DDC_ADDR_EDDC(addr) (((addr) & 0xff) << 16) #define SUN4I_HDMI_DDC_ADDR_OFFSET(off) (((off) & 0xff) << 8) #define SUN4I_HDMI_DDC_ADDR_SLAVE(addr) ((addr) & 0xff) #define SUN4I_HDMI_DDC_INT_STATUS_REG 0x50c #define SUN4I_HDMI_DDC_INT_STATUS_ILLEGAL_FIFO_OPERATION BIT(7) #define SUN4I_HDMI_DDC_INT_STATUS_DDC_RX_FIFO_UNDERFLOW BIT(6) #define SUN4I_HDMI_DDC_INT_STATUS_DDC_TX_FIFO_OVERFLOW BIT(5) #define SUN4I_HDMI_DDC_INT_STATUS_FIFO_REQUEST BIT(4) #define SUN4I_HDMI_DDC_INT_STATUS_ARBITRATION_ERROR BIT(3) #define SUN4I_HDMI_DDC_INT_STATUS_ACK_ERROR BIT(2) #define SUN4I_HDMI_DDC_INT_STATUS_BUS_ERROR BIT(1) #define SUN4I_HDMI_DDC_INT_STATUS_TRANSFER_COMPLETE BIT(0) #define SUN4I_HDMI_DDC_FIFO_CTRL_REG 0x510 #define SUN4I_HDMI_DDC_FIFO_CTRL_CLEAR BIT(31) #define SUN4I_HDMI_DDC_FIFO_CTRL_RX_THRES(n) (((n) & 0xf) << 4) #define SUN4I_HDMI_DDC_FIFO_CTRL_RX_THRES_MASK GENMASK(7, 4) #define SUN4I_HDMI_DDC_FIFO_CTRL_RX_THRES_MAX (BIT(4) - 1) #define SUN4I_HDMI_DDC_FIFO_CTRL_TX_THRES(n) ((n) & 0xf) #define SUN4I_HDMI_DDC_FIFO_CTRL_TX_THRES_MASK GENMASK(3, 0) #define SUN4I_HDMI_DDC_FIFO_CTRL_TX_THRES_MAX (BIT(4) - 1) #define SUN4I_HDMI_DDC_FIFO_DATA_REG 0x518 #define SUN4I_HDMI_DDC_BYTE_COUNT_REG 0x51c #define SUN4I_HDMI_DDC_BYTE_COUNT_MAX (BIT(10) - 1) #define SUN4I_HDMI_DDC_CMD_REG 0x520 #define SUN4I_HDMI_DDC_CMD_EXPLICIT_EDDC_READ 6 #define SUN4I_HDMI_DDC_CMD_IMPLICIT_READ 5 #define SUN4I_HDMI_DDC_CMD_IMPLICIT_WRITE 3 #define SUN4I_HDMI_DDC_CLK_REG 0x528 #define SUN4I_HDMI_DDC_CLK_M(m) (((m) & 0x7) << 3) #define SUN4I_HDMI_DDC_CLK_N(n) ((n) & 0x7) #define SUN4I_HDMI_DDC_LINE_CTRL_REG 0x540 #define SUN4I_HDMI_DDC_LINE_CTRL_SDA_ENABLE BIT(9) #define SUN4I_HDMI_DDC_LINE_CTRL_SCL_ENABLE BIT(8) #define SUN4I_HDMI_DDC_FIFO_SIZE 16 /* A31 specific */ #define SUN6I_HDMI_DDC_CTRL_REG 0x500 #define SUN6I_HDMI_DDC_CTRL_RESET BIT(31) #define SUN6I_HDMI_DDC_CTRL_START_CMD BIT(27) #define SUN6I_HDMI_DDC_CTRL_SDA_ENABLE BIT(6) #define SUN6I_HDMI_DDC_CTRL_SCL_ENABLE BIT(4) #define SUN6I_HDMI_DDC_CTRL_ENABLE BIT(0) #define SUN6I_HDMI_DDC_CMD_REG 0x508 #define SUN6I_HDMI_DDC_CMD_BYTE_COUNT(count) ((count) << 16) /* command types in lower 3 bits are the same as sun4i */ #define SUN6I_HDMI_DDC_ADDR_REG 0x50c #define SUN6I_HDMI_DDC_ADDR_SEGMENT(seg) (((seg) & 0xff) << 24) #define SUN6I_HDMI_DDC_ADDR_EDDC(addr) (((addr) & 0xff) << 16) #define SUN6I_HDMI_DDC_ADDR_OFFSET(off) (((off) & 0xff) << 8) #define SUN6I_HDMI_DDC_ADDR_SLAVE(addr) (((addr) & 0xff) << 1) #define SUN6I_HDMI_DDC_INT_STATUS_REG 0x514 #define SUN6I_HDMI_DDC_INT_STATUS_TIMEOUT BIT(8) /* lower 8 bits are the same as sun4i */ #define SUN6I_HDMI_DDC_FIFO_CTRL_REG 0x518 #define SUN6I_HDMI_DDC_FIFO_CTRL_CLEAR BIT(15) /* lower 9 bits are the same as sun4i */ #define SUN6I_HDMI_DDC_CLK_REG 0x520 /* DDC CLK bit fields are the same, but the formula is not */ #define SUN6I_HDMI_DDC_FIFO_DATA_REG 0x580 enum sun4i_hdmi_pkt_type { SUN4I_HDMI_PKT_AVI = 2, SUN4I_HDMI_PKT_END = 15, }; struct sun4i_hdmi_variant { bool has_ddc_parent_clk; bool has_reset_control; u32 pad_ctrl0_init_val; u32 pad_ctrl1_init_val; u32 pll_ctrl_init_val; struct reg_field ddc_clk_reg; u8 ddc_clk_pre_divider; u8 ddc_clk_m_offset; u8 tmds_clk_div_offset; /* Register fields for I2C adapter */ struct reg_field field_ddc_en; struct reg_field field_ddc_start; struct reg_field field_ddc_reset; struct reg_field field_ddc_addr_reg; struct reg_field field_ddc_slave_addr; struct reg_field field_ddc_int_mask; struct reg_field field_ddc_int_status; struct reg_field field_ddc_fifo_clear; struct reg_field field_ddc_fifo_rx_thres; struct reg_field field_ddc_fifo_tx_thres; struct reg_field field_ddc_byte_count; struct reg_field field_ddc_cmd; struct reg_field field_ddc_sda_en; struct reg_field field_ddc_sck_en; /* DDC FIFO register offset */ u32 ddc_fifo_reg; /* * DDC FIFO threshold boundary conditions * * This is used to cope with the threshold boundary condition * being slightly different on sun5i and sun6i. * * On sun5i the threshold is exclusive, i.e. does not include, * the value of the threshold. ( > for RX; < for TX ) * On sun6i the threshold is inclusive, i.e. includes, the * value of the threshold. ( >= for RX; <= for TX ) */ bool ddc_fifo_thres_incl; bool ddc_fifo_has_dir; }; struct sun4i_hdmi { struct drm_connector connector; struct drm_encoder encoder; struct device *dev; void __iomem *base; struct regmap *regmap; /* Reset control */ struct reset_control *reset; /* Parent clocks */ struct clk *bus_clk; struct clk *mod_clk; struct clk *ddc_parent_clk; struct clk *pll0_clk; struct clk *pll1_clk; /* And the clocks we create */ struct clk *ddc_clk; struct clk *tmds_clk; struct i2c_adapter *i2c; struct i2c_adapter *ddc_i2c; /* Regmap fields for I2C adapter */ struct regmap_field *field_ddc_en; struct regmap_field *field_ddc_start; struct regmap_field *field_ddc_reset; struct regmap_field *field_ddc_addr_reg; struct regmap_field *field_ddc_slave_addr; struct regmap_field *field_ddc_int_mask; struct regmap_field *field_ddc_int_status; struct regmap_field *field_ddc_fifo_clear; struct regmap_field *field_ddc_fifo_rx_thres; struct regmap_field *field_ddc_fifo_tx_thres; struct regmap_field *field_ddc_byte_count; struct regmap_field *field_ddc_cmd; struct regmap_field *field_ddc_sda_en; struct regmap_field *field_ddc_sck_en; struct sun4i_drv *drv; bool hdmi_monitor; struct cec_adapter *cec_adap; const struct sun4i_hdmi_variant *variant; }; int sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk *clk); int sun4i_tmds_create(struct sun4i_hdmi *hdmi); int sun4i_hdmi_i2c_create(struct device *dev, struct sun4i_hdmi *hdmi); #endif /* _SUN4I_HDMI_H_ */