drm/exynos: Add DECON driver
This patch is based on exynos-drm-next branch of Inki Dae's tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git
DECON(Display and Enhancement Controller) is the new IP
in exynos7 SOC for generating video signals using pixel data.
DECON driver can be used to drive 2 different interfaces on Exynos7:
DECON-INT(video controller) and DECON-EXT(Mixer for HDMI)
The existing FIMD driver code was used as a template to create
DECON driver. Only DECON-INT is supported as of now, and
DECON-EXT support will be added later.
The current version of the driver supports video mode displays.
Changelog v2:
- Change config name, DRM_EXYNOS_DECON to DRM_EXYNOS7_DECON.
Signed-off-by: Akshu Agrawal <[email protected]>
Signed-off-by: Ajay Kumar <[email protected]>
Signed-off-by: Inki Dae <[email protected]>
diff --git a/include/video/exynos7_decon.h b/include/video/exynos7_decon.h
new file mode 100644
index 0000000..a62b11b
--- /dev/null
+++ b/include/video/exynos7_decon.h
@@ -0,0 +1,349 @@
+/* include/video/exynos7_decon.h
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Ajay Kumar <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/* VIDCON0 */
+#define VIDCON0 0x00
+
+#define VIDCON0_SWRESET (1 << 28)
+#define VIDCON0_DECON_STOP_STATUS (1 << 2)
+#define VIDCON0_ENVID (1 << 1)
+#define VIDCON0_ENVID_F (1 << 0)
+
+/* VIDOUTCON0 */
+#define VIDOUTCON0 0x4
+
+#define VIDOUTCON0_DUAL_MASK (0x3 << 24)
+#define VIDOUTCON0_DUAL_ON (0x3 << 24)
+#define VIDOUTCON0_DISP_IF_1_ON (0x2 << 24)
+#define VIDOUTCON0_DISP_IF_0_ON (0x1 << 24)
+#define VIDOUTCON0_DUAL_OFF (0x0 << 24)
+#define VIDOUTCON0_IF_SHIFT 23
+#define VIDOUTCON0_IF_MASK (0x1 << 23)
+#define VIDOUTCON0_RGBIF (0x0 << 23)
+#define VIDOUTCON0_I80IF (0x1 << 23)
+
+/* VIDCON3 */
+#define VIDCON3 0x8
+
+/* VIDCON4 */
+#define VIDCON4 0xC
+#define VIDCON4_FIFOCNT_START_EN (1 << 0)
+
+/* VCLKCON0 */
+#define VCLKCON0 0x10
+#define VCLKCON0_CLKVALUP (1 << 8)
+#define VCLKCON0_VCLKFREE (1 << 0)
+
+/* VCLKCON */
+#define VCLKCON1 0x14
+#define VCLKCON1_CLKVAL_NUM_VCLK(val) (((val) & 0xff) << 0)
+#define VCLKCON2 0x18
+
+/* SHADOWCON */
+#define SHADOWCON 0x30
+
+#define SHADOWCON_WINx_PROTECT(_win) (1 << (10 + (_win)))
+
+/* WINCONx */
+#define WINCON(_win) (0x50 + ((_win) * 4))
+
+#define WINCONx_BUFSTATUS (0x3 << 30)
+#define WINCONx_BUFSEL_MASK (0x3 << 28)
+#define WINCONx_BUFSEL_SHIFT 28
+#define WINCONx_TRIPLE_BUF_MODE (0x1 << 18)
+#define WINCONx_DOUBLE_BUF_MODE (0x0 << 18)
+#define WINCONx_BURSTLEN_16WORD (0x0 << 11)
+#define WINCONx_BURSTLEN_8WORD (0x1 << 11)
+#define WINCONx_BURSTLEN_MASK (0x1 << 11)
+#define WINCONx_BURSTLEN_SHIFT 11
+#define WINCONx_BLD_PLANE (0 << 8)
+#define WINCONx_BLD_PIX (1 << 8)
+#define WINCONx_ALPHA_MUL (1 << 7)
+
+#define WINCONx_BPPMODE_MASK (0xf << 2)
+#define WINCONx_BPPMODE_SHIFT 2
+#define WINCONx_BPPMODE_16BPP_565 (0x8 << 2)
+#define WINCONx_BPPMODE_24BPP_BGRx (0x7 << 2)
+#define WINCONx_BPPMODE_24BPP_RGBx (0x6 << 2)
+#define WINCONx_BPPMODE_24BPP_xBGR (0x5 << 2)
+#define WINCONx_BPPMODE_24BPP_xRGB (0x4 << 2)
+#define WINCONx_BPPMODE_32BPP_BGRA (0x3 << 2)
+#define WINCONx_BPPMODE_32BPP_RGBA (0x2 << 2)
+#define WINCONx_BPPMODE_32BPP_ABGR (0x1 << 2)
+#define WINCONx_BPPMODE_32BPP_ARGB (0x0 << 2)
+#define WINCONx_ALPHA_SEL (1 << 1)
+#define WINCONx_ENWIN (1 << 0)
+
+#define WINCON1_ALPHA_MUL_F (1 << 7)
+#define WINCON2_ALPHA_MUL_F (1 << 7)
+#define WINCON3_ALPHA_MUL_F (1 << 7)
+#define WINCON4_ALPHA_MUL_F (1 << 7)
+
+/* VIDOSDxH: The height for the OSD image(READ ONLY)*/
+#define VIDOSD_H(_x) (0x80 + ((_x) * 4))
+
+/* Frame buffer start addresses: VIDWxxADD0n */
+#define VIDW_BUF_START(_win) (0x80 + ((_win) * 0x10))
+#define VIDW_BUF_START1(_win) (0x84 + ((_win) * 0x10))
+#define VIDW_BUF_START2(_win) (0x88 + ((_win) * 0x10))
+
+#define VIDW_WHOLE_X(_win) (0x0130 + ((_win) * 8))
+#define VIDW_WHOLE_Y(_win) (0x0134 + ((_win) * 8))
+#define VIDW_OFFSET_X(_win) (0x0170 + ((_win) * 8))
+#define VIDW_OFFSET_Y(_win) (0x0174 + ((_win) * 8))
+#define VIDW_BLKOFFSET(_win) (0x01B0 + ((_win) * 4))
+#define VIDW_BLKSIZE(win) (0x0200 + ((_win) * 4))
+
+/* Interrupt controls register */
+#define VIDINTCON2 0x228
+
+#define VIDINTCON1_INTEXTRA1_EN (1 << 1)
+#define VIDINTCON1_INTEXTRA0_EN (1 << 0)
+
+/* Interrupt controls and status register */
+#define VIDINTCON3 0x22C
+
+#define VIDINTCON1_INTEXTRA1_PEND (1 << 1)
+#define VIDINTCON1_INTEXTRA0_PEND (1 << 0)
+
+/* VIDOSDxA ~ VIDOSDxE */
+#define VIDOSD_BASE 0x230
+
+#define OSD_STRIDE 0x20
+
+#define VIDOSD_A(_win) (VIDOSD_BASE + \
+ ((_win) * OSD_STRIDE) + 0x00)
+#define VIDOSD_B(_win) (VIDOSD_BASE + \
+ ((_win) * OSD_STRIDE) + 0x04)
+#define VIDOSD_C(_win) (VIDOSD_BASE + \
+ ((_win) * OSD_STRIDE) + 0x08)
+#define VIDOSD_D(_win) (VIDOSD_BASE + \
+ ((_win) * OSD_STRIDE) + 0x0C)
+#define VIDOSD_E(_win) (VIDOSD_BASE + \
+ ((_win) * OSD_STRIDE) + 0x10)
+
+#define VIDOSDxA_TOPLEFT_X_MASK (0x1fff << 13)
+#define VIDOSDxA_TOPLEFT_X_SHIFT 13
+#define VIDOSDxA_TOPLEFT_X_LIMIT 0x1fff
+#define VIDOSDxA_TOPLEFT_X(_x) (((_x) & 0x1fff) << 13)
+
+#define VIDOSDxA_TOPLEFT_Y_MASK (0x1fff << 0)
+#define VIDOSDxA_TOPLEFT_Y_SHIFT 0
+#define VIDOSDxA_TOPLEFT_Y_LIMIT 0x1fff
+#define VIDOSDxA_TOPLEFT_Y(_x) (((_x) & 0x1fff) << 0)
+
+#define VIDOSDxB_BOTRIGHT_X_MASK (0x1fff << 13)
+#define VIDOSDxB_BOTRIGHT_X_SHIFT 13
+#define VIDOSDxB_BOTRIGHT_X_LIMIT 0x1fff
+#define VIDOSDxB_BOTRIGHT_X(_x) (((_x) & 0x1fff) << 13)
+
+#define VIDOSDxB_BOTRIGHT_Y_MASK (0x1fff << 0)
+#define VIDOSDxB_BOTRIGHT_Y_SHIFT 0
+#define VIDOSDxB_BOTRIGHT_Y_LIMIT 0x1fff
+#define VIDOSDxB_BOTRIGHT_Y(_x) (((_x) & 0x1fff) << 0)
+
+#define VIDOSDxC_ALPHA0_R_F(_x) (((_x) & 0xFF) << 16)
+#define VIDOSDxC_ALPHA0_G_F(_x) (((_x) & 0xFF) << 8)
+#define VIDOSDxC_ALPHA0_B_F(_x) (((_x) & 0xFF) << 0)
+
+#define VIDOSDxD_ALPHA1_R_F(_x) (((_x) & 0xFF) << 16)
+#define VIDOSDxD_ALPHA1_G_F(_x) (((_x) & 0xFF) << 8)
+#define VIDOSDxD_ALPHA1_B_F(_x) (((_x) & 0xFF) >> 0)
+
+/* Window MAP (Color map) */
+#define WINxMAP(_win) (0x340 + ((_win) * 4))
+
+#define WINxMAP_MAP (1 << 24)
+#define WINxMAP_MAP_COLOUR_MASK (0xffffff << 0)
+#define WINxMAP_MAP_COLOUR_SHIFT 0
+#define WINxMAP_MAP_COLOUR_LIMIT 0xffffff
+#define WINxMAP_MAP_COLOUR(_x) ((_x) << 0)
+
+/* Window colour-key control registers */
+#define WKEYCON 0x370
+
+#define WKEYCON0 0x00
+#define WKEYCON1 0x04
+#define WxKEYCON0_KEYBL_EN (1 << 26)
+#define WxKEYCON0_KEYEN_F (1 << 25)
+#define WxKEYCON0_DIRCON (1 << 24)
+#define WxKEYCON0_COMPKEY_MASK (0xffffff << 0)
+#define WxKEYCON0_COMPKEY_SHIFT 0
+#define WxKEYCON0_COMPKEY_LIMIT 0xffffff
+#define WxKEYCON0_COMPKEY(_x) ((_x) << 0)
+#define WxKEYCON1_COLVAL_MASK (0xffffff << 0)
+#define WxKEYCON1_COLVAL_SHIFT 0
+#define WxKEYCON1_COLVAL_LIMIT 0xffffff
+#define WxKEYCON1_COLVAL(_x) ((_x) << 0)
+
+/* color key control register for hardware window 1 ~ 4. */
+#define WKEYCON0_BASE(x) ((WKEYCON + WKEYCON0) + ((x - 1) * 8))
+/* color key value register for hardware window 1 ~ 4. */
+#define WKEYCON1_BASE(x) ((WKEYCON + WKEYCON1) + ((x - 1) * 8))
+
+/* Window KEY Alpha value */
+#define WxKEYALPHA(_win) (0x3A0 + (((_win) - 1) * 0x4))
+
+#define Wx_KEYALPHA_R_F_SHIFT 16
+#define Wx_KEYALPHA_G_F_SHIFT 8
+#define Wx_KEYALPHA_B_F_SHIFT 0
+
+/* Blending equation */
+#define BLENDE(_win) (0x03C0 + ((_win) * 4))
+#define BLENDE_COEF_ZERO 0x0
+#define BLENDE_COEF_ONE 0x1
+#define BLENDE_COEF_ALPHA_A 0x2
+#define BLENDE_COEF_ONE_MINUS_ALPHA_A 0x3
+#define BLENDE_COEF_ALPHA_B 0x4
+#define BLENDE_COEF_ONE_MINUS_ALPHA_B 0x5
+#define BLENDE_COEF_ALPHA0 0x6
+#define BLENDE_COEF_A 0xA
+#define BLENDE_COEF_ONE_MINUS_A 0xB
+#define BLENDE_COEF_B 0xC
+#define BLENDE_COEF_ONE_MINUS_B 0xD
+#define BLENDE_Q_FUNC(_v) ((_v) << 18)
+#define BLENDE_P_FUNC(_v) ((_v) << 12)
+#define BLENDE_B_FUNC(_v) ((_v) << 6)
+#define BLENDE_A_FUNC(_v) ((_v) << 0)
+
+/* Blending equation control */
+#define BLENDCON 0x3D8
+#define BLENDCON_NEW_MASK (1 << 0)
+#define BLENDCON_NEW_8BIT_ALPHA_VALUE (1 << 0)
+#define BLENDCON_NEW_4BIT_ALPHA_VALUE (0 << 0)
+
+/* Interrupt control register */
+#define VIDINTCON0 0x500
+
+#define VIDINTCON0_WAKEUP_MASK (0x3f << 26)
+#define VIDINTCON0_INTEXTRAEN (1 << 21)
+
+#define VIDINTCON0_FRAMESEL0_SHIFT 15
+#define VIDINTCON0_FRAMESEL0_MASK (0x3 << 15)
+#define VIDINTCON0_FRAMESEL0_BACKPORCH (0x0 << 15)
+#define VIDINTCON0_FRAMESEL0_VSYNC (0x1 << 15)
+#define VIDINTCON0_FRAMESEL0_ACTIVE (0x2 << 15)
+#define VIDINTCON0_FRAMESEL0_FRONTPORCH (0x3 << 15)
+
+#define VIDINTCON0_INT_FRAME (1 << 11)
+
+#define VIDINTCON0_FIFOLEVEL_MASK (0x7 << 3)
+#define VIDINTCON0_FIFOLEVEL_SHIFT 3
+#define VIDINTCON0_FIFOLEVEL_EMPTY (0x0 << 3)
+#define VIDINTCON0_FIFOLEVEL_TO25PC (0x1 << 3)
+#define VIDINTCON0_FIFOLEVEL_TO50PC (0x2 << 3)
+#define VIDINTCON0_FIFOLEVEL_FULL (0x4 << 3)
+
+#define VIDINTCON0_FIFOSEL_MAIN_EN (1 << 1)
+#define VIDINTCON0_INT_FIFO (1 << 1)
+
+#define VIDINTCON0_INT_ENABLE (1 << 0)
+
+/* Interrupt controls and status register */
+#define VIDINTCON1 0x504
+
+#define VIDINTCON1_INT_EXTRA (1 << 3)
+#define VIDINTCON1_INT_I80 (1 << 2)
+#define VIDINTCON1_INT_FRAME (1 << 1)
+#define VIDINTCON1_INT_FIFO (1 << 0)
+
+/* VIDCON1 */
+#define VIDCON1(_x) (0x0600 + ((_x) * 0x50))
+#define VIDCON1_LINECNT_GET(_v) (((_v) >> 17) & 0x1fff)
+#define VIDCON1_VCLK_MASK (0x3 << 9)
+#define VIDCON1_VCLK_HOLD (0x0 << 9)
+#define VIDCON1_VCLK_RUN (0x1 << 9)
+#define VIDCON1_VCLK_RUN_VDEN_DISABLE (0x3 << 9)
+#define VIDCON1_RGB_ORDER_O_MASK (0x7 << 4)
+#define VIDCON1_RGB_ORDER_O_RGB (0x0 << 4)
+#define VIDCON1_RGB_ORDER_O_GBR (0x1 << 4)
+#define VIDCON1_RGB_ORDER_O_BRG (0x2 << 4)
+#define VIDCON1_RGB_ORDER_O_BGR (0x4 << 4)
+#define VIDCON1_RGB_ORDER_O_RBG (0x5 << 4)
+#define VIDCON1_RGB_ORDER_O_GRB (0x6 << 4)
+
+/* VIDTCON0 */
+#define VIDTCON0 0x610
+
+#define VIDTCON0_VBPD_MASK (0xffff << 16)
+#define VIDTCON0_VBPD_SHIFT 16
+#define VIDTCON0_VBPD_LIMIT 0xffff
+#define VIDTCON0_VBPD(_x) ((_x) << 16)
+
+#define VIDTCON0_VFPD_MASK (0xffff << 0)
+#define VIDTCON0_VFPD_SHIFT 0
+#define VIDTCON0_VFPD_LIMIT 0xffff
+#define VIDTCON0_VFPD(_x) ((_x) << 0)
+
+/* VIDTCON1 */
+#define VIDTCON1 0x614
+
+#define VIDTCON1_VSPW_MASK (0xffff << 16)
+#define VIDTCON1_VSPW_SHIFT 16
+#define VIDTCON1_VSPW_LIMIT 0xffff
+#define VIDTCON1_VSPW(_x) ((_x) << 16)
+
+/* VIDTCON2 */
+#define VIDTCON2 0x618
+
+#define VIDTCON2_HBPD_MASK (0xffff << 16)
+#define VIDTCON2_HBPD_SHIFT 16
+#define VIDTCON2_HBPD_LIMIT 0xffff
+#define VIDTCON2_HBPD(_x) ((_x) << 16)
+
+#define VIDTCON2_HFPD_MASK (0xffff << 0)
+#define VIDTCON2_HFPD_SHIFT 0
+#define VIDTCON2_HFPD_LIMIT 0xffff
+#define VIDTCON2_HFPD(_x) ((_x) << 0)
+
+/* VIDTCON3 */
+#define VIDTCON3 0x61C
+
+#define VIDTCON3_HSPW_MASK (0xffff << 16)
+#define VIDTCON3_HSPW_SHIFT 16
+#define VIDTCON3_HSPW_LIMIT 0xffff
+#define VIDTCON3_HSPW(_x) ((_x) << 16)
+
+/* VIDTCON4 */
+#define VIDTCON4 0x620
+
+#define VIDTCON4_LINEVAL_MASK (0xfff << 16)
+#define VIDTCON4_LINEVAL_SHIFT 16
+#define VIDTCON4_LINEVAL_LIMIT 0xfff
+#define VIDTCON4_LINEVAL(_x) (((_x) & 0xfff) << 16)
+
+#define VIDTCON4_HOZVAL_MASK (0xfff << 0)
+#define VIDTCON4_HOZVAL_SHIFT 0
+#define VIDTCON4_HOZVAL_LIMIT 0xfff
+#define VIDTCON4_HOZVAL(_x) (((_x) & 0xfff) << 0)
+
+/* LINECNT OP THRSHOLD*/
+#define LINECNT_OP_THRESHOLD 0x630
+
+/* CRCCTRL */
+#define CRCCTRL 0x6C8
+#define CRCCTRL_CRCCLKEN (0x1 << 2)
+#define CRCCTRL_CRCSTART_F (0x1 << 1)
+#define CRCCTRL_CRCEN (0x1 << 0)
+
+/* DECON_CMU */
+#define DECON_CMU 0x704
+
+#define DECON_CMU_ALL_CLKGATE_ENABLE 0x3
+#define DECON_CMU_SE_CLKGATE_ENABLE (0x1 << 2)
+#define DECON_CMU_SFR_CLKGATE_ENABLE (0x1 << 1)
+#define DECON_CMU_MEM_CLKGATE_ENABLE (0x1 << 0)
+
+/* DECON_UPDATE */
+#define DECON_UPDATE 0x710
+
+#define DECON_UPDATE_SLAVE_SYNC (1 << 4)
+#define DECON_UPDATE_STANDALONE_F (1 << 0)
