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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 15:31:38 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/fsl-diu-fb.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
downloadlinux-f7018c21350204c4cf628462f229d44d03545254.tar.bz2
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
-rw-r--r--drivers/video/fsl-diu-fb.c1994
1 files changed, 0 insertions, 1994 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
deleted file mode 100644
index e8758b9c3bcc..000000000000
--- a/drivers/video/fsl-diu-fb.c
+++ /dev/null
@@ -1,1994 +0,0 @@
-/*
- * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * Freescale DIU Frame Buffer device driver
- *
- * Authors: Hongjun Chen <hong-jun.chen@freescale.com>
- * Paul Widmer <paul.widmer@freescale.com>
- * Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
- * York Sun <yorksun@freescale.com>
- *
- * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix
- *
- * 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.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/clk.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-#include <linux/spinlock.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#include <sysdev/fsl_soc.h>
-#include <linux/fsl-diu-fb.h>
-#include "edid.h"
-
-#define NUM_AOIS 5 /* 1 for plane 0, 2 for planes 1 & 2 each */
-
-/* HW cursor parameters */
-#define MAX_CURS 32
-
-/* INT_STATUS/INT_MASK field descriptions */
-#define INT_VSYNC 0x01 /* Vsync interrupt */
-#define INT_VSYNC_WB 0x02 /* Vsync interrupt for write back operation */
-#define INT_UNDRUN 0x04 /* Under run exception interrupt */
-#define INT_PARERR 0x08 /* Display parameters error interrupt */
-#define INT_LS_BF_VS 0x10 /* Lines before vsync. interrupt */
-
-/*
- * List of supported video modes
- *
- * The first entry is the default video mode. The remain entries are in
- * order if increasing resolution and frequency. The 320x240-60 mode is
- * the initial AOI for the second and third planes.
- */
-static struct fb_videomode fsl_diu_mode_db[] = {
- {
- .refresh = 60,
- .xres = 1024,
- .yres = 768,
- .pixclock = 15385,
- .left_margin = 160,
- .right_margin = 24,
- .upper_margin = 29,
- .lower_margin = 3,
- .hsync_len = 136,
- .vsync_len = 6,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 320,
- .yres = 240,
- .pixclock = 79440,
- .left_margin = 16,
- .right_margin = 16,
- .upper_margin = 16,
- .lower_margin = 5,
- .hsync_len = 48,
- .vsync_len = 1,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 640,
- .yres = 480,
- .pixclock = 39722,
- .left_margin = 48,
- .right_margin = 16,
- .upper_margin = 33,
- .lower_margin = 10,
- .hsync_len = 96,
- .vsync_len = 2,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 72,
- .xres = 640,
- .yres = 480,
- .pixclock = 32052,
- .left_margin = 128,
- .right_margin = 24,
- .upper_margin = 28,
- .lower_margin = 9,
- .hsync_len = 40,
- .vsync_len = 3,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 75,
- .xres = 640,
- .yres = 480,
- .pixclock = 31747,
- .left_margin = 120,
- .right_margin = 16,
- .upper_margin = 16,
- .lower_margin = 1,
- .hsync_len = 64,
- .vsync_len = 3,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 90,
- .xres = 640,
- .yres = 480,
- .pixclock = 25057,
- .left_margin = 120,
- .right_margin = 32,
- .upper_margin = 14,
- .lower_margin = 25,
- .hsync_len = 40,
- .vsync_len = 14,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 100,
- .xres = 640,
- .yres = 480,
- .pixclock = 22272,
- .left_margin = 48,
- .right_margin = 32,
- .upper_margin = 17,
- .lower_margin = 22,
- .hsync_len = 128,
- .vsync_len = 12,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 800,
- .yres = 480,
- .pixclock = 33805,
- .left_margin = 96,
- .right_margin = 24,
- .upper_margin = 10,
- .lower_margin = 3,
- .hsync_len = 72,
- .vsync_len = 7,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 800,
- .yres = 600,
- .pixclock = 25000,
- .left_margin = 88,
- .right_margin = 40,
- .upper_margin = 23,
- .lower_margin = 1,
- .hsync_len = 128,
- .vsync_len = 4,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 854,
- .yres = 480,
- .pixclock = 31518,
- .left_margin = 104,
- .right_margin = 16,
- .upper_margin = 13,
- .lower_margin = 1,
- .hsync_len = 88,
- .vsync_len = 3,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 70,
- .xres = 1024,
- .yres = 768,
- .pixclock = 16886,
- .left_margin = 3,
- .right_margin = 3,
- .upper_margin = 2,
- .lower_margin = 2,
- .hsync_len = 40,
- .vsync_len = 18,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 75,
- .xres = 1024,
- .yres = 768,
- .pixclock = 15009,
- .left_margin = 3,
- .right_margin = 3,
- .upper_margin = 2,
- .lower_margin = 2,
- .hsync_len = 80,
- .vsync_len = 32,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 1280,
- .yres = 480,
- .pixclock = 18939,
- .left_margin = 353,
- .right_margin = 47,
- .upper_margin = 39,
- .lower_margin = 4,
- .hsync_len = 8,
- .vsync_len = 2,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 1280,
- .yres = 720,
- .pixclock = 13426,
- .left_margin = 192,
- .right_margin = 64,
- .upper_margin = 22,
- .lower_margin = 1,
- .hsync_len = 136,
- .vsync_len = 3,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 1280,
- .yres = 1024,
- .pixclock = 9375,
- .left_margin = 38,
- .right_margin = 128,
- .upper_margin = 2,
- .lower_margin = 7,
- .hsync_len = 216,
- .vsync_len = 37,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 70,
- .xres = 1280,
- .yres = 1024,
- .pixclock = 9380,
- .left_margin = 6,
- .right_margin = 6,
- .upper_margin = 4,
- .lower_margin = 4,
- .hsync_len = 60,
- .vsync_len = 94,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 75,
- .xres = 1280,
- .yres = 1024,
- .pixclock = 9380,
- .left_margin = 6,
- .right_margin = 6,
- .upper_margin = 4,
- .lower_margin = 4,
- .hsync_len = 60,
- .vsync_len = 15,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
- {
- .refresh = 60,
- .xres = 1920,
- .yres = 1080,
- .pixclock = 5787,
- .left_margin = 328,
- .right_margin = 120,
- .upper_margin = 34,
- .lower_margin = 1,
- .hsync_len = 208,
- .vsync_len = 3,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- },
-};
-
-static char *fb_mode;
-static unsigned long default_bpp = 32;
-static enum fsl_diu_monitor_port monitor_port;
-static char *monitor_string;
-
-#if defined(CONFIG_NOT_COHERENT_CACHE)
-static u8 *coherence_data;
-static size_t coherence_data_size;
-static unsigned int d_cache_line_size;
-#endif
-
-static DEFINE_SPINLOCK(diu_lock);
-
-enum mfb_index {
- PLANE0 = 0, /* Plane 0, only one AOI that fills the screen */
- PLANE1_AOI0, /* Plane 1, first AOI */
- PLANE1_AOI1, /* Plane 1, second AOI */
- PLANE2_AOI0, /* Plane 2, first AOI */
- PLANE2_AOI1, /* Plane 2, second AOI */
-};
-
-struct mfb_info {
- enum mfb_index index;
- char *id;
- int registered;
- unsigned long pseudo_palette[16];
- struct diu_ad *ad;
- unsigned char g_alpha;
- unsigned int count;
- int x_aoi_d; /* aoi display x offset to physical screen */
- int y_aoi_d; /* aoi display y offset to physical screen */
- struct fsl_diu_data *parent;
-};
-
-/**
- * struct fsl_diu_data - per-DIU data structure
- * @dma_addr: DMA address of this structure
- * @fsl_diu_info: fb_info objects, one per AOI
- * @dev_attr: sysfs structure
- * @irq: IRQ
- * @monitor_port: the monitor port this DIU is connected to
- * @diu_reg: pointer to the DIU hardware registers
- * @reg_lock: spinlock for register access
- * @dummy_aoi: video buffer for the 4x4 32-bit dummy AOI
- * dummy_ad: DIU Area Descriptor for the dummy AOI
- * @ad[]: Area Descriptors for each real AOI
- * @gamma: gamma color table
- * @cursor: hardware cursor data
- *
- * This data structure must be allocated with 32-byte alignment, so that the
- * internal fields can be aligned properly.
- */
-struct fsl_diu_data {
- dma_addr_t dma_addr;
- struct fb_info fsl_diu_info[NUM_AOIS];
- struct mfb_info mfb[NUM_AOIS];
- struct device_attribute dev_attr;
- unsigned int irq;
- enum fsl_diu_monitor_port monitor_port;
- struct diu __iomem *diu_reg;
- spinlock_t reg_lock;
- u8 dummy_aoi[4 * 4 * 4];
- struct diu_ad dummy_ad __aligned(8);
- struct diu_ad ad[NUM_AOIS] __aligned(8);
- u8 gamma[256 * 3] __aligned(32);
- /* It's easier to parse the cursor data as little-endian */
- __le16 cursor[MAX_CURS * MAX_CURS] __aligned(32);
- /* Blank cursor data -- used to hide the cursor */
- __le16 blank_cursor[MAX_CURS * MAX_CURS] __aligned(32);
- uint8_t edid_data[EDID_LENGTH];
- bool has_edid;
-} __aligned(32);
-
-/* Determine the DMA address of a member of the fsl_diu_data structure */
-#define DMA_ADDR(p, f) ((p)->dma_addr + offsetof(struct fsl_diu_data, f))
-
-static struct mfb_info mfb_template[] = {
- {
- .index = PLANE0,
- .id = "Panel0",
- .registered = 0,
- .count = 0,
- .x_aoi_d = 0,
- .y_aoi_d = 0,
- },
- {
- .index = PLANE1_AOI0,
- .id = "Panel1 AOI0",
- .registered = 0,
- .g_alpha = 0xff,
- .count = 0,
- .x_aoi_d = 0,
- .y_aoi_d = 0,
- },
- {
- .index = PLANE1_AOI1,
- .id = "Panel1 AOI1",
- .registered = 0,
- .g_alpha = 0xff,
- .count = 0,
- .x_aoi_d = 0,
- .y_aoi_d = 480,
- },
- {
- .index = PLANE2_AOI0,
- .id = "Panel2 AOI0",
- .registered = 0,
- .g_alpha = 0xff,
- .count = 0,
- .x_aoi_d = 640,
- .y_aoi_d = 0,
- },
- {
- .index = PLANE2_AOI1,
- .id = "Panel2 AOI1",
- .registered = 0,
- .g_alpha = 0xff,
- .count = 0,
- .x_aoi_d = 640,
- .y_aoi_d = 480,
- },
-};
-
-#ifdef DEBUG
-static void __attribute__ ((unused)) fsl_diu_dump(struct diu __iomem *hw)
-{
- mb();
- pr_debug("DIU: desc=%08x,%08x,%08x, gamma=%08x pallete=%08x "
- "cursor=%08x curs_pos=%08x diu_mode=%08x bgnd=%08x "
- "disp_size=%08x hsyn_para=%08x vsyn_para=%08x syn_pol=%08x "
- "thresholds=%08x int_mask=%08x plut=%08x\n",
- hw->desc[0], hw->desc[1], hw->desc[2], hw->gamma,
- hw->pallete, hw->cursor, hw->curs_pos, hw->diu_mode,
- hw->bgnd, hw->disp_size, hw->hsyn_para, hw->vsyn_para,
- hw->syn_pol, hw->thresholds, hw->int_mask, hw->plut);
- rmb();
-}
-#endif
-
-/**
- * fsl_diu_name_to_port - convert a port name to a monitor port enum
- *
- * Takes the name of a monitor port ("dvi", "lvds", or "dlvds") and returns
- * the enum fsl_diu_monitor_port that corresponds to that string.
- *
- * For compatibility with older versions, a number ("0", "1", or "2") is also
- * supported.
- *
- * If the string is unknown, DVI is assumed.
- *
- * If the particular port is not supported by the platform, another port
- * (platform-specific) is chosen instead.
- */
-static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s)
-{
- enum fsl_diu_monitor_port port = FSL_DIU_PORT_DVI;
- unsigned long val;
-
- if (s) {
- if (!kstrtoul(s, 10, &val) && (val <= 2))
- port = (enum fsl_diu_monitor_port) val;
- else if (strncmp(s, "lvds", 4) == 0)
- port = FSL_DIU_PORT_LVDS;
- else if (strncmp(s, "dlvds", 5) == 0)
- port = FSL_DIU_PORT_DLVDS;
- }
-
- return diu_ops.valid_monitor_port(port);
-}
-
-/*
- * Workaround for failed writing desc register of planes.
- * Needed with MPC5121 DIU rev 2.0 silicon.
- */
-void wr_reg_wa(u32 *reg, u32 val)
-{
- do {
- out_be32(reg, val);
- } while (in_be32(reg) != val);
-}
-
-static void fsl_diu_enable_panel(struct fb_info *info)
-{
- struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
- struct diu_ad *ad = mfbi->ad;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw = data->diu_reg;
-
- switch (mfbi->index) {
- case PLANE0:
- wr_reg_wa(&hw->desc[0], ad->paddr);
- break;
- case PLANE1_AOI0:
- cmfbi = &data->mfb[2];
- if (hw->desc[1] != ad->paddr) { /* AOI0 closed */
- if (cmfbi->count > 0) /* AOI1 open */
- ad->next_ad =
- cpu_to_le32(cmfbi->ad->paddr);
- else
- ad->next_ad = 0;
- wr_reg_wa(&hw->desc[1], ad->paddr);
- }
- break;
- case PLANE2_AOI0:
- cmfbi = &data->mfb[4];
- if (hw->desc[2] != ad->paddr) { /* AOI0 closed */
- if (cmfbi->count > 0) /* AOI1 open */
- ad->next_ad =
- cpu_to_le32(cmfbi->ad->paddr);
- else
- ad->next_ad = 0;
- wr_reg_wa(&hw->desc[2], ad->paddr);
- }
- break;
- case PLANE1_AOI1:
- pmfbi = &data->mfb[1];
- ad->next_ad = 0;
- if (hw->desc[1] == data->dummy_ad.paddr)
- wr_reg_wa(&hw->desc[1], ad->paddr);
- else /* AOI0 open */
- pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
- break;
- case PLANE2_AOI1:
- pmfbi = &data->mfb[3];
- ad->next_ad = 0;
- if (hw->desc[2] == data->dummy_ad.paddr)
- wr_reg_wa(&hw->desc[2], ad->paddr);
- else /* AOI0 was open */
- pmfbi->ad->next_ad = cpu_to_le32(ad->paddr);
- break;
- }
-}
-
-static void fsl_diu_disable_panel(struct fb_info *info)
-{
- struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
- struct diu_ad *ad = mfbi->ad;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw = data->diu_reg;
-
- switch (mfbi->index) {
- case PLANE0:
- wr_reg_wa(&hw->desc[0], 0);
- break;
- case PLANE1_AOI0:
- cmfbi = &data->mfb[2];
- if (cmfbi->count > 0) /* AOI1 is open */
- wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr);
- /* move AOI1 to the first */
- else /* AOI1 was closed */
- wr_reg_wa(&hw->desc[1], data->dummy_ad.paddr);
- /* close AOI 0 */
- break;
- case PLANE2_AOI0:
- cmfbi = &data->mfb[4];
- if (cmfbi->count > 0) /* AOI1 is open */
- wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr);
- /* move AOI1 to the first */
- else /* AOI1 was closed */
- wr_reg_wa(&hw->desc[2], data->dummy_ad.paddr);
- /* close AOI 0 */
- break;
- case PLANE1_AOI1:
- pmfbi = &data->mfb[1];
- if (hw->desc[1] != ad->paddr) {
- /* AOI1 is not the first in the chain */
- if (pmfbi->count > 0)
- /* AOI0 is open, must be the first */
- pmfbi->ad->next_ad = 0;
- } else /* AOI1 is the first in the chain */
- wr_reg_wa(&hw->desc[1], data->dummy_ad.paddr);
- /* close AOI 1 */
- break;
- case PLANE2_AOI1:
- pmfbi = &data->mfb[3];
- if (hw->desc[2] != ad->paddr) {
- /* AOI1 is not the first in the chain */
- if (pmfbi->count > 0)
- /* AOI0 is open, must be the first */
- pmfbi->ad->next_ad = 0;
- } else /* AOI1 is the first in the chain */
- wr_reg_wa(&hw->desc[2], data->dummy_ad.paddr);
- /* close AOI 1 */
- break;
- }
-}
-
-static void enable_lcdc(struct fb_info *info)
-{
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw = data->diu_reg;
-
- out_be32(&hw->diu_mode, MFB_MODE1);
-}
-
-static void disable_lcdc(struct fb_info *info)
-{
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw = data->diu_reg;
-
- out_be32(&hw->diu_mode, 0);
-}
-
-static void adjust_aoi_size_position(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- int available_height, upper_aoi_bottom;
- enum mfb_index index = mfbi->index;
- int lower_aoi_is_open, upper_aoi_is_open;
- __u32 base_plane_width, base_plane_height, upper_aoi_height;
-
- base_plane_width = data->fsl_diu_info[0].var.xres;
- base_plane_height = data->fsl_diu_info[0].var.yres;
-
- if (mfbi->x_aoi_d < 0)
- mfbi->x_aoi_d = 0;
- if (mfbi->y_aoi_d < 0)
- mfbi->y_aoi_d = 0;
- switch (index) {
- case PLANE0:
- if (mfbi->x_aoi_d != 0)
- mfbi->x_aoi_d = 0;
- if (mfbi->y_aoi_d != 0)
- mfbi->y_aoi_d = 0;
- break;
- case PLANE1_AOI0:
- case PLANE2_AOI0:
- lower_aoi_mfbi = data->fsl_diu_info[index+1].par;
- lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0;
- if (var->xres > base_plane_width)
- var->xres = base_plane_width;
- if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
- mfbi->x_aoi_d = base_plane_width - var->xres;
-
- if (lower_aoi_is_open)
- available_height = lower_aoi_mfbi->y_aoi_d;
- else
- available_height = base_plane_height;
- if (var->yres > available_height)
- var->yres = available_height;
- if ((mfbi->y_aoi_d + var->yres) > available_height)
- mfbi->y_aoi_d = available_height - var->yres;
- break;
- case PLANE1_AOI1:
- case PLANE2_AOI1:
- upper_aoi_mfbi = data->fsl_diu_info[index-1].par;
- upper_aoi_height = data->fsl_diu_info[index-1].var.yres;
- upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height;
- upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0;
- if (var->xres > base_plane_width)
- var->xres = base_plane_width;
- if ((mfbi->x_aoi_d + var->xres) > base_plane_width)
- mfbi->x_aoi_d = base_plane_width - var->xres;
- if (mfbi->y_aoi_d < 0)
- mfbi->y_aoi_d = 0;
- if (upper_aoi_is_open) {
- if (mfbi->y_aoi_d < upper_aoi_bottom)
- mfbi->y_aoi_d = upper_aoi_bottom;
- available_height = base_plane_height
- - upper_aoi_bottom;
- } else
- available_height = base_plane_height;
- if (var->yres > available_height)
- var->yres = available_height;
- if ((mfbi->y_aoi_d + var->yres) > base_plane_height)
- mfbi->y_aoi_d = base_plane_height - var->yres;
- break;
- }
-}
-/*
- * Checks to see if the hardware supports the state requested by var passed
- * in. This function does not alter the hardware state! If the var passed in
- * is slightly off by what the hardware can support then we alter the var
- * PASSED in to what we can do. If the hardware doesn't support mode change
- * a -EINVAL will be returned by the upper layers.
- */
-static int fsl_diu_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- if (var->xres_virtual < var->xres)
- var->xres_virtual = var->xres;
- if (var->yres_virtual < var->yres)
- var->yres_virtual = var->yres;
-
- if (var->xoffset < 0)
- var->xoffset = 0;
-
- if (var->yoffset < 0)
- var->yoffset = 0;
-
- if (var->xoffset + info->var.xres > info->var.xres_virtual)
- var->xoffset = info->var.xres_virtual - info->var.xres;
-
- if (var->yoffset + info->var.yres > info->var.yres_virtual)
- var->yoffset = info->var.yres_virtual - info->var.yres;
-
- if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
- (var->bits_per_pixel != 16))
- var->bits_per_pixel = default_bpp;
-
- switch (var->bits_per_pixel) {
- case 16:
- var->red.length = 5;
- var->red.offset = 11;
- var->red.msb_right = 0;
-
- var->green.length = 6;
- var->green.offset = 5;
- var->green.msb_right = 0;
-
- var->blue.length = 5;
- var->blue.offset = 0;
- var->blue.msb_right = 0;
-
- var->transp.length = 0;
- var->transp.offset = 0;
- var->transp.msb_right = 0;
- break;
- case 24:
- var->red.length = 8;
- var->red.offset = 0;
- var->red.msb_right = 0;
-
- var->green.length = 8;
- var->green.offset = 8;
- var->green.msb_right = 0;
-
- var->blue.length = 8;
- var->blue.offset = 16;
- var->blue.msb_right = 0;
-
- var->transp.length = 0;
- var->transp.offset = 0;
- var->transp.msb_right = 0;
- break;
- case 32:
- var->red.length = 8;
- var->red.offset = 16;
- var->red.msb_right = 0;
-
- var->green.length = 8;
- var->green.offset = 8;
- var->green.msb_right = 0;
-
- var->blue.length = 8;
- var->blue.offset = 0;
- var->blue.msb_right = 0;
-
- var->transp.length = 8;
- var->transp.offset = 24;
- var->transp.msb_right = 0;
-
- break;
- }
-
- var->height = -1;
- var->width = -1;
- var->grayscale = 0;
-
- /* Copy nonstd field to/from sync for fbset usage */
- var->sync |= var->nonstd;
- var->nonstd |= var->sync;
-
- adjust_aoi_size_position(var, info);
- return 0;
-}
-
-static void set_fix(struct fb_info *info)
-{
- struct fb_fix_screeninfo *fix = &info->fix;
- struct fb_var_screeninfo *var = &info->var;
- struct mfb_info *mfbi = info->par;
-
- strncpy(fix->id, mfbi->id, sizeof(fix->id));
- fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->accel = FB_ACCEL_NONE;
- fix->visual = FB_VISUAL_TRUECOLOR;
- fix->xpanstep = 1;
- fix->ypanstep = 1;
-}
-
-static void update_lcdc(struct fb_info *info)
-{
- struct fb_var_screeninfo *var = &info->var;
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw;
- int i, j;
- u8 *gamma_table_base;
-
- u32 temp;
-
- hw = data->diu_reg;
-
- if (diu_ops.set_monitor_port)
- diu_ops.set_monitor_port(data->monitor_port);
- gamma_table_base = data->gamma;
-
- /* Prep for DIU init - gamma table, cursor table */
-
- for (i = 0; i <= 2; i++)
- for (j = 0; j <= 255; j++)
- *gamma_table_base++ = j;
-
- if (diu_ops.set_gamma_table)
- diu_ops.set_gamma_table(data->monitor_port, data->gamma);
-
- disable_lcdc(info);
-
- /* Program DIU registers */
-
- out_be32(&hw->gamma, DMA_ADDR(data, gamma));
-
- out_be32(&hw->bgnd, 0x007F7F7F); /* Set background to grey */
- out_be32(&hw->disp_size, (var->yres << 16) | var->xres);
-
- /* Horizontal and vertical configuration register */
- temp = var->left_margin << 22 | /* BP_H */
- var->hsync_len << 11 | /* PW_H */
- var->right_margin; /* FP_H */
-
- out_be32(&hw->hsyn_para, temp);
-
- temp = var->upper_margin << 22 | /* BP_V */
- var->vsync_len << 11 | /* PW_V */
- var->lower_margin; /* FP_V */
-
- out_be32(&hw->vsyn_para, temp);
-
- diu_ops.set_pixel_clock(var->pixclock);
-
-#ifndef CONFIG_PPC_MPC512x
- /*
- * The PLUT register is defined differently on the MPC5121 than it
- * is on other SOCs. Unfortunately, there's no documentation that
- * explains how it's supposed to be programmed, so for now, we leave
- * it at the default value on the MPC5121.
- *
- * For other SOCs, program it for the highest priority, which will
- * reduce the chance of underrun. Technically, we should scale the
- * priority to match the screen resolution, but doing that properly
- * requires delicate fine-tuning for each use-case.
- */
- out_be32(&hw->plut, 0x01F5F666);
-#endif
-
- /* Enable the DIU */
- enable_lcdc(info);
-}
-
-static int map_video_memory(struct fb_info *info)
-{
- u32 smem_len = info->fix.line_length * info->var.yres_virtual;
- void *p;
-
- p = alloc_pages_exact(smem_len, GFP_DMA | __GFP_ZERO);
- if (!p) {
- dev_err(info->dev, "unable to allocate fb memory\n");
- return -ENOMEM;
- }
- mutex_lock(&info->mm_lock);
- info->screen_base = p;
- info->fix.smem_start = virt_to_phys(info->screen_base);
- info->fix.smem_len = smem_len;
- mutex_unlock(&info->mm_lock);
- info->screen_size = info->fix.smem_len;
-
- return 0;
-}
-
-static void unmap_video_memory(struct fb_info *info)
-{
- void *p = info->screen_base;
- size_t l = info->fix.smem_len;
-
- mutex_lock(&info->mm_lock);
- info->screen_base = NULL;
- info->fix.smem_start = 0;
- info->fix.smem_len = 0;
- mutex_unlock(&info->mm_lock);
-
- if (p)
- free_pages_exact(p, l);
-}
-
-/*
- * Using the fb_var_screeninfo in fb_info we set the aoi of this
- * particular framebuffer. It is a light version of fsl_diu_set_par.
- */
-static int fsl_diu_set_aoi(struct fb_info *info)
-{
- struct fb_var_screeninfo *var = &info->var;
- struct mfb_info *mfbi = info->par;
- struct diu_ad *ad = mfbi->ad;
-
- /* AOI should not be greater than display size */
- ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset);
- ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d);
- return 0;
-}
-
-/**
- * fsl_diu_get_pixel_format: return the pixel format for a given color depth
- *
- * The pixel format is a 32-bit value that determine which bits in each
- * pixel are to be used for each color. This is the default function used
- * if the platform does not define its own version.
- */
-static u32 fsl_diu_get_pixel_format(unsigned int bits_per_pixel)
-{
-#define PF_BYTE_F 0x10000000
-#define PF_ALPHA_C_MASK 0x0E000000
-#define PF_ALPHA_C_SHIFT 25
-#define PF_BLUE_C_MASK 0x01800000
-#define PF_BLUE_C_SHIFT 23
-#define PF_GREEN_C_MASK 0x00600000
-#define PF_GREEN_C_SHIFT 21
-#define PF_RED_C_MASK 0x00180000
-#define PF_RED_C_SHIFT 19
-#define PF_PALETTE 0x00040000
-#define PF_PIXEL_S_MASK 0x00030000
-#define PF_PIXEL_S_SHIFT 16
-#define PF_COMP_3_MASK 0x0000F000
-#define PF_COMP_3_SHIFT 12
-#define PF_COMP_2_MASK 0x00000F00
-#define PF_COMP_2_SHIFT 8
-#define PF_COMP_1_MASK 0x000000F0
-#define PF_COMP_1_SHIFT 4
-#define PF_COMP_0_MASK 0x0000000F
-#define PF_COMP_0_SHIFT 0
-
-#define MAKE_PF(alpha, red, green, blue, size, c0, c1, c2, c3) \
- cpu_to_le32(PF_BYTE_F | (alpha << PF_ALPHA_C_SHIFT) | \
- (blue << PF_BLUE_C_SHIFT) | (green << PF_GREEN_C_SHIFT) | \
- (red << PF_RED_C_SHIFT) | (c3 << PF_COMP_3_SHIFT) | \
- (c2 << PF_COMP_2_SHIFT) | (c1 << PF_COMP_1_SHIFT) | \
- (c0 << PF_COMP_0_SHIFT) | (size << PF_PIXEL_S_SHIFT))
-
- switch (bits_per_pixel) {
- case 32:
- /* 0x88883316 */
- return MAKE_PF(3, 2, 1, 0, 3, 8, 8, 8, 8);
- case 24:
- /* 0x88082219 */
- return MAKE_PF(4, 0, 1, 2, 2, 8, 8, 8, 0);
- case 16:
- /* 0x65053118 */
- return MAKE_PF(4, 2, 1, 0, 1, 5, 6, 5, 0);
- default:
- pr_err("fsl-diu: unsupported color depth %u\n", bits_per_pixel);
- return 0;
- }
-}
-
-/*
- * Copies a cursor image from user space to the proper place in driver
- * memory so that the hardware can display the cursor image.
- *
- * Cursor data is represented as a sequence of 'width' bits packed into bytes.
- * That is, the first 8 bits are in the first byte, the second 8 bits in the
- * second byte, and so on. Therefore, the each row of the cursor is (width +
- * 7) / 8 bytes of 'data'
- *
- * The DIU only supports cursors up to 32x32 (MAX_CURS). We reject cursors
- * larger than this, so we already know that 'width' <= 32. Therefore, we can
- * simplify our code by using a 32-bit big-endian integer ("line") to read in
- * a single line of pixels, and only look at the top 'width' bits of that
- * integer.
- *
- * This could result in an unaligned 32-bit read. For example, if the cursor
- * is 24x24, then the first three bytes of 'image' contain the pixel data for
- * the top line of the cursor. We do a 32-bit read of 'image', but we look
- * only at the top 24 bits. Then we increment 'image' by 3 bytes. The next
- * read is unaligned. The only problem is that we might read past the end of
- * 'image' by 1-3 bytes, but that should not cause any problems.
- */
-static void fsl_diu_load_cursor_image(struct fb_info *info,
- const void *image, uint16_t bg, uint16_t fg,
- unsigned int width, unsigned int height)
-{
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- __le16 *cursor = data->cursor;
- __le16 _fg = cpu_to_le16(fg);
- __le16 _bg = cpu_to_le16(bg);
- unsigned int h, w;
-
- for (h = 0; h < height; h++) {
- uint32_t mask = 1 << 31;
- uint32_t line = be32_to_cpup(image);
-
- for (w = 0; w < width; w++) {
- cursor[w] = (line & mask) ? _fg : _bg;
- mask >>= 1;
- }
-
- cursor += MAX_CURS;
- image += DIV_ROUND_UP(width, 8);
- }
-}
-
-/*
- * Set a hardware cursor. The image data for the cursor is passed via the
- * fb_cursor object.
- */
-static int fsl_diu_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu __iomem *hw = data->diu_reg;
-
- if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
- return -EINVAL;
-
- /* The cursor size has changed */
- if (cursor->set & FB_CUR_SETSIZE) {
- /*
- * The DIU cursor is a fixed size, so when we get this
- * message, instead of resizing the cursor, we just clear
- * all the image data, in expectation of new data. However,
- * in tests this control does not appear to be normally
- * called.
- */
- memset(data->cursor, 0, sizeof(data->cursor));
- }
-
- /* The cursor position has changed (cursor->image.dx|dy) */
- if (cursor->set & FB_CUR_SETPOS) {
- uint32_t xx, yy;
-
- yy = (cursor->image.dy - info->var.yoffset) & 0x7ff;
- xx = (cursor->image.dx - info->var.xoffset) & 0x7ff;
-
- out_be32(&hw->curs_pos, yy << 16 | xx);
- }
-
- /*
- * FB_CUR_SETIMAGE - the cursor image has changed
- * FB_CUR_SETCMAP - the cursor colors has changed
- * FB_CUR_SETSHAPE - the cursor bitmask has changed
- */
- if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
- unsigned int image_size =
- DIV_ROUND_UP(cursor->image.width, 8) * cursor->image.height;
- unsigned int image_words =
- DIV_ROUND_UP(image_size, sizeof(uint32_t));
- unsigned int bg_idx = cursor->image.bg_color;
- unsigned int fg_idx = cursor->image.fg_color;
- uint8_t buffer[image_size];
- uint32_t *image, *source, *mask;
- uint16_t fg, bg;
- unsigned int i;
-
- if (info->state != FBINFO_STATE_RUNNING)
- return 0;
-
- /*
- * Determine the size of the cursor image data. Normally,
- * it's 8x16.
- */
- image_size = DIV_ROUND_UP(cursor->image.width, 8) *
- cursor->image.height;
-
- bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
- ((info->cmap.green[bg_idx] & 0xf8) << 2) |
- ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
- 1 << 15;
-
- fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
- ((info->cmap.green[fg_idx] & 0xf8) << 2) |
- ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
- 1 << 15;
-
- /* Use 32-bit operations on the data to improve performance */
- image = (uint32_t *)buffer;
- source = (uint32_t *)cursor->image.data;
- mask = (uint32_t *)cursor->mask;
-
- if (cursor->rop == ROP_XOR)
- for (i = 0; i < image_words; i++)
- image[i] = source[i] ^ mask[i];
- else
- for (i = 0; i < image_words; i++)
- image[i] = source[i] & mask[i];
-
- fsl_diu_load_cursor_image(info, image, bg, fg,
- cursor->image.width, cursor->image.height);
- }
-
- /*
- * Show or hide the cursor. The cursor data is always stored in the
- * 'cursor' memory block, and the actual cursor position is always in
- * the DIU's CURS_POS register. To hide the cursor, we redirect the
- * CURSOR register to a blank cursor. The show the cursor, we
- * redirect the CURSOR register to the real cursor data.
- */
- if (cursor->enable)
- out_be32(&hw->cursor, DMA_ADDR(data, cursor));
- else
- out_be32(&hw->cursor, DMA_ADDR(data, blank_cursor));
-
- return 0;
-}
-
-/*
- * Using the fb_var_screeninfo in fb_info we set the resolution of this
- * particular framebuffer. This function alters the fb_fix_screeninfo stored
- * in fb_info. It does not alter var in fb_info since we are using that
- * data. This means we depend on the data in var inside fb_info to be
- * supported by the hardware. fsl_diu_check_var is always called before
- * fsl_diu_set_par to ensure this.
- */
-static int fsl_diu_set_par(struct fb_info *info)
-{
- unsigned long len;
- struct fb_var_screeninfo *var = &info->var;
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- struct diu_ad *ad = mfbi->ad;
- struct diu __iomem *hw;
-
- hw = data->diu_reg;
-
- set_fix(info);
-
- len = info->var.yres_virtual * info->fix.line_length;
- /* Alloc & dealloc each time resolution/bpp change */
- if (len != info->fix.smem_len) {
- if (info->fix.smem_start)
- unmap_video_memory(info);
-
- /* Memory allocation for framebuffer */
- if (map_video_memory(info)) {
- dev_err(info->dev, "unable to allocate fb memory 1\n");
- return -ENOMEM;
- }
- }
-
- if (diu_ops.get_pixel_format)
- ad->pix_fmt = diu_ops.get_pixel_format(data->monitor_port,
- var->bits_per_pixel);
- else
- ad->pix_fmt = fsl_diu_get_pixel_format(var->bits_per_pixel);
-
- ad->addr = cpu_to_le32(info->fix.smem_start);
- ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) |
- var->xres_virtual) | mfbi->g_alpha;
- /* AOI should not be greater than display size */
- ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres);
- ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset);
- ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d);
-
- /* Disable chroma keying function */
- ad->ckmax_r = 0;
- ad->ckmax_g = 0;
- ad->ckmax_b = 0;
-
- ad->ckmin_r = 255;
- ad->ckmin_g = 255;
- ad->ckmin_b = 255;
-
- if (mfbi->index == PLANE0)
- update_lcdc(info);
- return 0;
-}
-
-static inline __u32 CNVT_TOHW(__u32 val, __u32 width)
-{
- return ((val << width) + 0x7FFF - val) >> 16;
-}
-
-/*
- * Set a single color register. The values supplied have a 16 bit magnitude
- * which needs to be scaled in this function for the hardware. Things to take
- * into consideration are how many color registers, if any, are supported with
- * the current color visual. With truecolor mode no color palettes are
- * supported. Here a pseudo palette is created which we store the value in
- * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited
- * color palette.
- */
-static int fsl_diu_setcolreg(unsigned int regno, unsigned int red,
- unsigned int green, unsigned int blue,
- unsigned int transp, struct fb_info *info)
-{
- int ret = 1;
-
- /*
- * If greyscale is true, then we convert the RGB value
- * to greyscale no matter what visual we are using.
- */
- if (info->var.grayscale)
- red = green = blue = (19595 * red + 38470 * green +
- 7471 * blue) >> 16;
- switch (info->fix.visual) {
- case FB_VISUAL_TRUECOLOR:
- /*
- * 16-bit True Colour. We encode the RGB value
- * according to the RGB bitfield information.
- */
- if (regno < 16) {
- u32 *pal = info->pseudo_palette;
- u32 v;
-
- red = CNVT_TOHW(red, info->var.red.length);
- green = CNVT_TOHW(green, info->var.green.length);
- blue = CNVT_TOHW(blue, info->var.blue.length);
- transp = CNVT_TOHW(transp, info->var.transp.length);
-
- v = (red << info->var.red.offset) |
- (green << info->var.green.offset) |
- (blue << info->var.blue.offset) |
- (transp << info->var.transp.offset);
-
- pal[regno] = v;
- ret = 0;
- }
- break;
- }
-
- return ret;
-}
-
-/*
- * Pan (or wrap, depending on the `vmode' field) the display using the
- * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values
- * don't fit, return -EINVAL.
- */
-static int fsl_diu_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- if ((info->var.xoffset == var->xoffset) &&
- (info->var.yoffset == var->yoffset))
- return 0; /* No change, do nothing */
-
- if (var->xoffset < 0 || var->yoffset < 0
- || var->xoffset + info->var.xres > info->var.xres_virtual
- || var->yoffset + info->var.yres > info->var.yres_virtual)
- return -EINVAL;
-
- info->var.xoffset = var->xoffset;
- info->var.yoffset = var->yoffset;
-
- if (var->vmode & FB_VMODE_YWRAP)
- info->var.vmode |= FB_VMODE_YWRAP;
- else
- info->var.vmode &= ~FB_VMODE_YWRAP;
-
- fsl_diu_set_aoi(info);
-
- return 0;
-}
-
-static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
- unsigned long arg)
-{
- struct mfb_info *mfbi = info->par;
- struct diu_ad *ad = mfbi->ad;
- struct mfb_chroma_key ck;
- unsigned char global_alpha;
- struct aoi_display_offset aoi_d;
- __u32 pix_fmt;
- void __user *buf = (void __user *)arg;
-
- if (!arg)
- return -EINVAL;
-
- dev_dbg(info->dev, "ioctl %08x (dir=%s%s type=%u nr=%u size=%u)\n", cmd,
- _IOC_DIR(cmd) & _IOC_READ ? "R" : "",
- _IOC_DIR(cmd) & _IOC_WRITE ? "W" : "",
- _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
-
- switch (cmd) {
- case MFB_SET_PIXFMT_OLD:
- dev_warn(info->dev,
- "MFB_SET_PIXFMT value of 0x%08x is deprecated.\n",
- MFB_SET_PIXFMT_OLD);
- case MFB_SET_PIXFMT:
- if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt)))
- return -EFAULT;
- ad->pix_fmt = pix_fmt;
- break;
- case MFB_GET_PIXFMT_OLD:
- dev_warn(info->dev,
- "MFB_GET_PIXFMT value of 0x%08x is deprecated.\n",
- MFB_GET_PIXFMT_OLD);
- case MFB_GET_PIXFMT:
- pix_fmt = ad->pix_fmt;
- if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt)))
- return -EFAULT;
- break;
- case MFB_SET_AOID:
- if (copy_from_user(&aoi_d, buf, sizeof(aoi_d)))
- return -EFAULT;
- mfbi->x_aoi_d = aoi_d.x_aoi_d;
- mfbi->y_aoi_d = aoi_d.y_aoi_d;
- fsl_diu_check_var(&info->var, info);
- fsl_diu_set_aoi(info);
- break;
- case MFB_GET_AOID:
- aoi_d.x_aoi_d = mfbi->x_aoi_d;
- aoi_d.y_aoi_d = mfbi->y_aoi_d;
- if (copy_to_user(buf, &aoi_d, sizeof(aoi_d)))
- return -EFAULT;
- break;
- case MFB_GET_ALPHA:
- global_alpha = mfbi->g_alpha;
- if (copy_to_user(buf, &global_alpha, sizeof(global_alpha)))
- return -EFAULT;
- break;
- case MFB_SET_ALPHA:
- /* set panel information */
- if (copy_from_user(&global_alpha, buf, sizeof(global_alpha)))
- return -EFAULT;
- ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) |
- (global_alpha & 0xff);
- mfbi->g_alpha = global_alpha;
- break;
- case MFB_SET_CHROMA_KEY:
- /* set panel winformation */
- if (copy_from_user(&ck, buf, sizeof(ck)))
- return -EFAULT;
-
- if (ck.enable &&
- (ck.red_max < ck.red_min ||
- ck.green_max < ck.green_min ||
- ck.blue_max < ck.blue_min))
- return -EINVAL;
-
- if (!ck.enable) {
- ad->ckmax_r = 0;
- ad->ckmax_g = 0;
- ad->ckmax_b = 0;
- ad->ckmin_r = 255;
- ad->ckmin_g = 255;
- ad->ckmin_b = 255;
- } else {
- ad->ckmax_r = ck.red_max;
- ad->ckmax_g = ck.green_max;
- ad->ckmax_b = ck.blue_max;
- ad->ckmin_r = ck.red_min;
- ad->ckmin_g = ck.green_min;
- ad->ckmin_b = ck.blue_min;
- }
- break;
-#ifdef CONFIG_PPC_MPC512x
- case MFB_SET_GAMMA: {
- struct fsl_diu_data *data = mfbi->parent;
-
- if (copy_from_user(data->gamma, buf, sizeof(data->gamma)))
- return -EFAULT;
- setbits32(&data->diu_reg->gamma, 0); /* Force table reload */
- break;
- }
- case MFB_GET_GAMMA: {
- struct fsl_diu_data *data = mfbi->parent;
-
- if (copy_to_user(buf, data->gamma, sizeof(data->gamma)))
- return -EFAULT;
- break;
- }
-#endif
- default:
- dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd);
- return -ENOIOCTLCMD;
- }
-
- return 0;
-}
-
-static inline void fsl_diu_enable_interrupts(struct fsl_diu_data *data)
-{
- u32 int_mask = INT_UNDRUN; /* enable underrun detection */
-
- if (IS_ENABLED(CONFIG_NOT_COHERENT_CACHE))
- int_mask |= INT_VSYNC; /* enable vertical sync */
-
- clrbits32(&data->diu_reg->int_mask, int_mask);
-}
-
-/* turn on fb if count == 1
- */
-static int fsl_diu_open(struct fb_info *info, int user)
-{
- struct mfb_info *mfbi = info->par;
- int res = 0;
-
- /* free boot splash memory on first /dev/fb0 open */
- if ((mfbi->index == PLANE0) && diu_ops.release_bootmem)
- diu_ops.release_bootmem();
-
- spin_lock(&diu_lock);
- mfbi->count++;
- if (mfbi->count == 1) {
- fsl_diu_check_var(&info->var, info);
- res = fsl_diu_set_par(info);
- if (res < 0)
- mfbi->count--;
- else {
- fsl_diu_enable_interrupts(mfbi->parent);
- fsl_diu_enable_panel(info);
- }
- }
-
- spin_unlock(&diu_lock);
- return res;
-}
-
-/* turn off fb if count == 0
- */
-static int fsl_diu_release(struct fb_info *info, int user)
-{
- struct mfb_info *mfbi = info->par;
- int res = 0;
-
- spin_lock(&diu_lock);
- mfbi->count--;
- if (mfbi->count == 0) {
- struct fsl_diu_data *data = mfbi->parent;
- bool disable = true;
- int i;
-
- /* Disable interrupts only if all AOIs are closed */
- for (i = 0; i < NUM_AOIS; i++) {
- struct mfb_info *mi = data->fsl_diu_info[i].par;
-
- if (mi->count)
- disable = false;
- }
- if (disable)
- out_be32(&data->diu_reg->int_mask, 0xffffffff);
- fsl_diu_disable_panel(info);
- }
-
- spin_unlock(&diu_lock);
- return res;
-}
-
-static struct fb_ops fsl_diu_ops = {
- .owner = THIS_MODULE,
- .fb_check_var = fsl_diu_check_var,
- .fb_set_par = fsl_diu_set_par,
- .fb_setcolreg = fsl_diu_setcolreg,
- .fb_pan_display = fsl_diu_pan_display,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_ioctl = fsl_diu_ioctl,
- .fb_open = fsl_diu_open,
- .fb_release = fsl_diu_release,
- .fb_cursor = fsl_diu_cursor,
-};
-
-static int install_fb(struct fb_info *info)
-{
- int rc;
- struct mfb_info *mfbi = info->par;
- struct fsl_diu_data *data = mfbi->parent;
- const char *aoi_mode, *init_aoi_mode = "320x240";
- struct fb_videomode *db = fsl_diu_mode_db;
- unsigned int dbsize = ARRAY_SIZE(fsl_diu_mode_db);
- int has_default_mode = 1;
-
- info->var.activate = FB_ACTIVATE_NOW;
- info->fbops = &fsl_diu_ops;
- info->flags = FBINFO_DEFAULT | FBINFO_VIRTFB | FBINFO_PARTIAL_PAN_OK |
- FBINFO_READS_FAST;
- info->pseudo_palette = mfbi->pseudo_palette;
-
- rc = fb_alloc_cmap(&info->cmap, 16, 0);
- if (rc)
- return rc;
-
- if (mfbi->index == PLANE0) {
- if (data->has_edid) {
- /* Now build modedb from EDID */
- fb_edid_to_monspecs(data->edid_data, &info->monspecs);
- fb_videomode_to_modelist(info->monspecs.modedb,
- info->monspecs.modedb_len,
- &info->modelist);
- db = info->monspecs.modedb;
- dbsize = info->monspecs.modedb_len;
- }
- aoi_mode = fb_mode;
- } else {
- aoi_mode = init_aoi_mode;
- }
- rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, NULL,
- default_bpp);
- if (!rc) {
- /*
- * For plane 0 we continue and look into
- * driver's internal modedb.
- */
- if ((mfbi->index == PLANE0) && data->has_edid)
- has_default_mode = 0;
- else
- return -EINVAL;
- }
-
- if (!has_default_mode) {
- rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db,
- ARRAY_SIZE(fsl_diu_mode_db), NULL, default_bpp);
- if (rc)
- has_default_mode = 1;
- }
-
- /* Still not found, use preferred mode from database if any */
- if (!has_default_mode && info->monspecs.modedb) {
- struct fb_monspecs *specs = &info->monspecs;
- struct fb_videomode *modedb = &specs->modedb[0];
-
- /*
- * Get preferred timing. If not found,
- * first mode in database will be used.
- */
- if (specs->misc & FB_MISC_1ST_DETAIL) {
- int i;
-
- for (i = 0; i < specs->modedb_len; i++) {
- if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
- modedb = &specs->modedb[i];
- break;
- }
- }
- }
-
- info->var.bits_per_pixel = default_bpp;
- fb_videomode_to_var(&info->var, modedb);
- }
-
- if (fsl_diu_check_var(&info->var, info)) {
- dev_err(info->dev, "fsl_diu_check_var failed\n");
- unmap_video_memory(info);
- fb_dealloc_cmap(&info->cmap);
- return -EINVAL;
- }
-
- if (register_framebuffer(info) < 0) {
- dev_err(info->dev, "register_framebuffer failed\n");
- unmap_video_memory(info);
- fb_dealloc_cmap(&info->cmap);
- return -EINVAL;
- }
-
- mfbi->registered = 1;
- dev_info(info->dev, "%s registered successfully\n", mfbi->id);
-
- return 0;
-}
-
-static void uninstall_fb(struct fb_info *info)
-{
- struct mfb_info *mfbi = info->par;
-
- if (!mfbi->registered)
- return;
-
- unregister_framebuffer(info);
- unmap_video_memory(info);
- if (&info->cmap)
- fb_dealloc_cmap(&info->cmap);
-
- mfbi->registered = 0;
-}
-
-static irqreturn_t fsl_diu_isr(int irq, void *dev_id)
-{
- struct diu __iomem *hw = dev_id;
- uint32_t status = in_be32(&hw->int_status);
-
- if (status) {
- /* This is the workaround for underrun */
- if (status & INT_UNDRUN) {
- out_be32(&hw->diu_mode, 0);
- udelay(1);
- out_be32(&hw->diu_mode, 1);
- }
-#if defined(CONFIG_NOT_COHERENT_CACHE)
- else if (status & INT_VSYNC) {
- unsigned int i;
-
- for (i = 0; i < coherence_data_size;
- i += d_cache_line_size)
- __asm__ __volatile__ (
- "dcbz 0, %[input]"
- ::[input]"r"(&coherence_data[i]));
- }
-#endif
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
-}
-
-#ifdef CONFIG_PM
-/*
- * Power management hooks. Note that we won't be called from IRQ context,
- * unlike the blank functions above, so we may sleep.
- */
-static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state)
-{
- struct fsl_diu_data *data;
-
- data = dev_get_drvdata(&ofdev->dev);
- disable_lcdc(data->fsl_diu_info);
-
- return 0;
-}
-
-static int fsl_diu_resume(struct platform_device *ofdev)
-{
- struct fsl_diu_data *data;
-
- data = dev_get_drvdata(&ofdev->dev);
- enable_lcdc(data->fsl_diu_info);
-
- return 0;
-}
-
-#else
-#define fsl_diu_suspend NULL
-#define fsl_diu_resume NULL
-#endif /* CONFIG_PM */
-
-static ssize_t store_monitor(struct device *device,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- enum fsl_diu_monitor_port old_monitor_port;
- struct fsl_diu_data *data =
- container_of(attr, struct fsl_diu_data, dev_attr);
-
- old_monitor_port = data->monitor_port;
- data->monitor_port = fsl_diu_name_to_port(buf);
-
- if (old_monitor_port != data->monitor_port) {
- /* All AOIs need adjust pixel format
- * fsl_diu_set_par only change the pixsel format here
- * unlikely to fail. */
- unsigned int i;
-
- for (i=0; i < NUM_AOIS; i++)
- fsl_diu_set_par(&data->fsl_diu_info[i]);
- }
- return count;
-}
-
-static ssize_t show_monitor(struct device *device,
- struct device_attribute *attr, char *buf)
-{
- struct fsl_diu_data *data =
- container_of(attr, struct fsl_diu_data, dev_attr);
-
- switch (data->monitor_port) {
- case FSL_DIU_PORT_DVI:
- return sprintf(buf, "DVI\n");
- case FSL_DIU_PORT_LVDS:
- return sprintf(buf, "Single-link LVDS\n");
- case FSL_DIU_PORT_DLVDS:
- return sprintf(buf, "Dual-link LVDS\n");
- }
-
- return 0;
-}
-
-static int fsl_diu_probe(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- struct mfb_info *mfbi;
- struct fsl_diu_data *data;
- dma_addr_t dma_addr; /* DMA addr of fsl_diu_data struct */
- const void *prop;
- unsigned int i;
- int ret;
-
- data = dmam_alloc_coherent(&pdev->dev, sizeof(struct fsl_diu_data),
- &dma_addr, GFP_DMA | __GFP_ZERO);
- if (!data)
- return -ENOMEM;
- data->dma_addr = dma_addr;
-
- /*
- * dma_alloc_coherent() uses a page allocator, so the address is
- * always page-aligned. We need the memory to be 32-byte aligned,
- * so that's good. However, if one day the allocator changes, we
- * need to catch that. It's not worth the effort to handle unaligned
- * alloctions now because it's highly unlikely to ever be a problem.
- */
- if ((unsigned long)data & 31) {
- dev_err(&pdev->dev, "misaligned allocation");
- ret = -ENOMEM;
- goto error;
- }
-
- spin_lock_init(&data->reg_lock);
-
- for (i = 0; i < NUM_AOIS; i++) {
- struct fb_info *info = &data->fsl_diu_info[i];
-
- info->device = &pdev->dev;
- info->par = &data->mfb[i];
-
- /*
- * We store the physical address of the AD in the reserved
- * 'paddr' field of the AD itself.
- */
- data->ad[i].paddr = DMA_ADDR(data, ad[i]);
-
- info->fix.smem_start = 0;
-
- /* Initialize the AOI data structure */
- mfbi = info->par;
- memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info));
- mfbi->parent = data;
- mfbi->ad = &data->ad[i];
- }
-
- /* Get the EDID data from the device tree, if present */
- prop = of_get_property(np, "edid", &ret);
- if (prop && ret == EDID_LENGTH) {
- memcpy(data->edid_data, prop, EDID_LENGTH);
- data->has_edid = true;
- }
-
- data->diu_reg = of_iomap(np, 0);
- if (!data->diu_reg) {
- dev_err(&pdev->dev, "cannot map DIU registers\n");
- ret = -EFAULT;
- goto error;
- }
-
- /* Get the IRQ of the DIU */
- data->irq = irq_of_parse_and_map(np, 0);
-
- if (!data->irq) {
- dev_err(&pdev->dev, "could not get DIU IRQ\n");
- ret = -EINVAL;
- goto error;
- }
- data->monitor_port = monitor_port;
-
- /* Initialize the dummy Area Descriptor */
- data->dummy_ad.addr = cpu_to_le32(DMA_ADDR(data, dummy_aoi));
- data->dummy_ad.pix_fmt = 0x88882317;
- data->dummy_ad.src_size_g_alpha = cpu_to_le32((4 << 12) | 4);
- data->dummy_ad.aoi_size = cpu_to_le32((4 << 16) | 2);
- data->dummy_ad.offset_xyi = 0;
- data->dummy_ad.offset_xyd = 0;
- data->dummy_ad.next_ad = 0;
- data->dummy_ad.paddr = DMA_ADDR(data, dummy_ad);
-
- /*
- * Let DIU continue to display splash screen if it was pre-initialized
- * by the bootloader; otherwise, clear the display.
- */
- if (in_be32(&data->diu_reg->diu_mode) == MFB_MODE0)
- out_be32(&data->diu_reg->desc[0], 0);
-
- out_be32(&data->diu_reg->desc[1], data->dummy_ad.paddr);
- out_be32(&data->diu_reg->desc[2], data->dummy_ad.paddr);
-
- /*
- * Older versions of U-Boot leave interrupts enabled, so disable
- * all of them and clear the status register.
- */
- out_be32(&data->diu_reg->int_mask, 0xffffffff);
- in_be32(&data->diu_reg->int_status);
-
- ret = request_irq(data->irq, fsl_diu_isr, 0, "fsl-diu-fb",
- data->diu_reg);
- if (ret) {
- dev_err(&pdev->dev, "could not claim irq\n");
- goto error;
- }
-
- for (i = 0; i < NUM_AOIS; i++) {
- ret = install_fb(&data->fsl_diu_info[i]);
- if (ret) {
- dev_err(&pdev->dev, "could not register fb %d\n", i);
- free_irq(data->irq, data->diu_reg);
- goto error;
- }
- }
-
- sysfs_attr_init(&data->dev_attr.attr);
- data->dev_attr.attr.name = "monitor";
- data->dev_attr.attr.mode = S_IRUGO|S_IWUSR;
- data->dev_attr.show = show_monitor;
- data->dev_attr.store = store_monitor;
- ret = device_create_file(&pdev->dev, &data->dev_attr);
- if (ret) {
- dev_err(&pdev->dev, "could not create sysfs file %s\n",
- data->dev_attr.attr.name);
- }
-
- dev_set_drvdata(&pdev->dev, data);
- return 0;
-
-error:
- for (i = 0; i < NUM_AOIS; i++)
- uninstall_fb(&data->fsl_diu_info[i]);
-
- iounmap(data->diu_reg);
-
- return ret;
-}
-
-static int fsl_diu_remove(struct platform_device *pdev)
-{
- struct fsl_diu_data *data;
- int i;
-
- data = dev_get_drvdata(&pdev->dev);
- disable_lcdc(&data->fsl_diu_info[0]);
-
- free_irq(data->irq, data->diu_reg);
-
- for (i = 0; i < NUM_AOIS; i++)
- uninstall_fb(&data->fsl_diu_info[i]);
-
- iounmap(data->diu_reg);
-
- return 0;
-}
-
-#ifndef MODULE
-static int __init fsl_diu_setup(char *options)
-{
- char *opt;
- unsigned long val;
-
- if (!options || !*options)
- return 0;
-
- while ((opt = strsep(&options, ",")) != NULL) {
- if (!*opt)
- continue;
- if (!strncmp(opt, "monitor=", 8)) {
- monitor_port = fsl_diu_name_to_port(opt + 8);
- } else if (!strncmp(opt, "bpp=", 4)) {
- if (!kstrtoul(opt + 4, 10, &val))
- default_bpp = val;
- } else
- fb_mode = opt;
- }
-
- return 0;
-}
-#endif
-
-static struct of_device_id fsl_diu_match[] = {
-#ifdef CONFIG_PPC_MPC512x
- {
- .compatible = "fsl,mpc5121-diu",
- },
-#endif
- {
- .compatible = "fsl,diu",
- },
- {}
-};
-MODULE_DEVICE_TABLE(of, fsl_diu_match);
-
-static struct platform_driver fsl_diu_driver = {
- .driver = {
- .name = "fsl-diu-fb",
- .owner = THIS_MODULE,
- .of_match_table = fsl_diu_match,
- },
- .probe = fsl_diu_probe,
- .remove = fsl_diu_remove,
- .suspend = fsl_diu_suspend,
- .resume = fsl_diu_resume,
-};
-
-static int __init fsl_diu_init(void)
-{
-#ifdef CONFIG_NOT_COHERENT_CACHE
- struct device_node *np;
- const u32 *prop;
-#endif
- int ret;
-#ifndef MODULE
- char *option;
-
- /*
- * For kernel boot options (in 'video=xxxfb:<options>' format)
- */
- if (fb_get_options("fslfb", &option))
- return -ENODEV;
- fsl_diu_setup(option);
-#else
- monitor_port = fsl_diu_name_to_port(monitor_string);
-#endif
- pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n");
-
-#ifdef CONFIG_NOT_COHERENT_CACHE
- np = of_find_node_by_type(NULL, "cpu");
- if (!np) {
- pr_err("fsl-diu-fb: can't find 'cpu' device node\n");
- return -ENODEV;
- }
-
- prop = of_get_property(np, "d-cache-size", NULL);
- if (prop == NULL) {
- pr_err("fsl-diu-fb: missing 'd-cache-size' property' "
- "in 'cpu' node\n");
- of_node_put(np);
- return -ENODEV;
- }
-
- /*
- * Freescale PLRU requires 13/8 times the cache size to do a proper
- * displacement flush
- */
- coherence_data_size = be32_to_cpup(prop) * 13;
- coherence_data_size /= 8;
-
- pr_debug("fsl-diu-fb: coherence data size is %zu bytes\n",
- coherence_data_size);
-
- prop = of_get_property(np, "d-cache-line-size", NULL);
- if (prop == NULL) {
- pr_err("fsl-diu-fb: missing 'd-cache-line-size' property' "
- "in 'cpu' node\n");
- of_node_put(np);
- return -ENODEV;
- }
- d_cache_line_size = be32_to_cpup(prop);
-
- pr_debug("fsl-diu-fb: cache lines size is %u bytes\n",
- d_cache_line_size);
-
- of_node_put(np);
- coherence_data = vmalloc(coherence_data_size);
- if (!coherence_data) {
- pr_err("fsl-diu-fb: could not allocate coherence data "
- "(size=%zu)\n", coherence_data_size);
- return -ENOMEM;
- }
-
-#endif
-
- ret = platform_driver_register(&fsl_diu_driver);
- if (ret) {
- pr_err("fsl-diu-fb: failed to register platform driver\n");
-#if defined(CONFIG_NOT_COHERENT_CACHE)
- vfree(coherence_data);
-#endif
- }
- return ret;
-}
-
-static void __exit fsl_diu_exit(void)
-{
- platform_driver_unregister(&fsl_diu_driver);
-#if defined(CONFIG_NOT_COHERENT_CACHE)
- vfree(coherence_data);
-#endif
-}
-
-module_init(fsl_diu_init);
-module_exit(fsl_diu_exit);
-
-MODULE_AUTHOR("York Sun <yorksun@freescale.com>");
-MODULE_DESCRIPTION("Freescale DIU framebuffer driver");
-MODULE_LICENSE("GPL");
-
-module_param_named(mode, fb_mode, charp, 0);
-MODULE_PARM_DESC(mode,
- "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
-module_param_named(bpp, default_bpp, ulong, 0);
-MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified in 'mode'");
-module_param_named(monitor, monitor_string, charp, 0);
-MODULE_PARM_DESC(monitor, "Specify the monitor port "
- "(\"dvi\", \"lvds\", or \"dlvds\") if supported by the platform");
-