diff options
Diffstat (limited to 'drivers/video/fsl-diu-fb.c')
| -rw-r--r-- | drivers/video/fsl-diu-fb.c | 1834 |
1 files changed, 0 insertions, 1834 deletions
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c deleted file mode 100644 index a16beeb5f54..00000000000 --- a/drivers/video/fsl-diu-fb.c +++ /dev/null @@ -1,1834 +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 <sysdev/fsl_soc.h> -#include <linux/fsl-diu-fb.h> -#include "edid.h" - -#define FSL_AOI_NUM 6 /* 5 AOIs and one dummy AOI */ - /* 1 for plane 0, 2 for plane 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 */ - -struct diu_addr { - void *vaddr; /* Virtual address */ - dma_addr_t paddr; /* Physical address */ - __u32 offset; -}; - -/* - * 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 __devinitdata 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); - -struct fsl_diu_data { - struct fb_info *fsl_diu_info[FSL_AOI_NUM - 1]; - /*FSL_AOI_NUM has one dummy AOI */ - struct device_attribute dev_attr; - struct diu_ad *dummy_ad; - void *dummy_aoi_virt; - unsigned int irq; - int fb_enabled; - enum fsl_diu_monitor_port monitor_port; - struct diu __iomem *diu_reg; - spinlock_t reg_lock; - struct diu_addr ad; - struct diu_addr gamma; - struct diu_addr pallete; - struct diu_addr cursor; -}; - -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; - int cursor_reset; - 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; - u8 *edid_data; -}; - - -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, - }, -}; - -/** - * 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 (!strict_strtoul(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); -} - -/** - * fsl_diu_alloc - allocate memory for the DIU - * @size: number of bytes to allocate - * @param: returned physical address of memory - * - * This function allocates a physically-contiguous block of memory. - */ -static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) -{ - void *virt; - - virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); - if (virt) - *phys = virt_to_phys(virt); - - return virt; -} - -/** - * fsl_diu_free - release DIU memory - * @virt: pointer returned by fsl_diu_alloc() - * @size: number of bytes allocated by fsl_diu_alloc() - * - * This function releases memory allocated by fsl_diu_alloc(). - */ -static void fsl_diu_free(void *virt, size_t size) -{ - if (virt && size) - free_pages_exact(virt, size); -} - -/* - * 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 *machine_data = mfbi->parent; - struct diu __iomem *hw = machine_data->diu_reg; - - switch (mfbi->index) { - case PLANE0: - if (hw->desc[0] != ad->paddr) - wr_reg_wa(&hw->desc[0], ad->paddr); - break; - case PLANE1_AOI0: - cmfbi = machine_data->fsl_diu_info[2]->par; - 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 = machine_data->fsl_diu_info[4]->par; - 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 = machine_data->fsl_diu_info[1]->par; - ad->next_ad = 0; - if (hw->desc[1] == machine_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 = machine_data->fsl_diu_info[3]->par; - ad->next_ad = 0; - if (hw->desc[2] == machine_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 *machine_data = mfbi->parent; - struct diu __iomem *hw = machine_data->diu_reg; - - switch (mfbi->index) { - case PLANE0: - if (hw->desc[0] != machine_data->dummy_ad->paddr) - wr_reg_wa(&hw->desc[0], machine_data->dummy_ad->paddr); - break; - case PLANE1_AOI0: - cmfbi = machine_data->fsl_diu_info[2]->par; - 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], machine_data->dummy_ad->paddr); - /* close AOI 0 */ - break; - case PLANE2_AOI0: - cmfbi = machine_data->fsl_diu_info[4]->par; - 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], machine_data->dummy_ad->paddr); - /* close AOI 0 */ - break; - case PLANE1_AOI1: - pmfbi = machine_data->fsl_diu_info[1]->par; - 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], machine_data->dummy_ad->paddr); - /* close AOI 1 */ - break; - case PLANE2_AOI1: - pmfbi = machine_data->fsl_diu_info[3]->par; - 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], machine_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 *machine_data = mfbi->parent; - struct diu __iomem *hw = machine_data->diu_reg; - - if (!machine_data->fb_enabled) { - out_be32(&hw->diu_mode, MFB_MODE1); - machine_data->fb_enabled++; - } -} - -static void disable_lcdc(struct fb_info *info) -{ - struct mfb_info *mfbi = info->par; - struct fsl_diu_data *machine_data = mfbi->parent; - struct diu __iomem *hw = machine_data->diu_reg; - - if (machine_data->fb_enabled) { - out_be32(&hw->diu_mode, 0); - machine_data->fb_enabled = 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 *machine_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 = machine_data->fsl_diu_info[0]->var.xres; - base_plane_height = machine_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 = machine_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 = machine_data->fsl_diu_info[index-1]->par; - upper_aoi_height = - machine_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 *machine_data = mfbi->parent; - struct diu __iomem *hw; - int i, j; - char __iomem *cursor_base, *gamma_table_base; - - u32 temp; - - hw = machine_data->diu_reg; - - diu_ops.set_monitor_port(machine_data->monitor_port); - gamma_table_base = machine_data->gamma.vaddr; - cursor_base = machine_data->cursor.vaddr; - /* Prep for DIU init - gamma table, cursor table */ - - for (i = 0; i <= 2; i++) - for (j = 0; j <= 255; j++) - *gamma_table_base++ = j; - - diu_ops.set_gamma_table(machine_data->monitor_port, - machine_data->gamma.vaddr); - - disable_lcdc(info); - - /* Program DIU registers */ - - out_be32(&hw->gamma, machine_data->gamma.paddr); - out_be32(&hw->cursor, machine_data->cursor.paddr); - - out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ - out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ - out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); - /* DISP SIZE */ - out_be32(&hw->wb_size, 0); /* WB SIZE */ - out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ - - /* 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); - - out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ - out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ - out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ - out_be32(&hw->plut, 0x01F5F666); - - /* Enable the DIU */ - enable_lcdc(info); -} - -static int map_video_memory(struct fb_info *info) -{ - phys_addr_t phys; - u32 smem_len = info->fix.line_length * info->var.yres_virtual; - - info->screen_base = fsl_diu_alloc(smem_len, &phys); - if (info->screen_base == NULL) { - dev_err(info->dev, "unable to allocate fb memory\n"); - return -ENOMEM; - } - mutex_lock(&info->mm_lock); - info->fix.smem_start = (unsigned long) phys; - 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) -{ - fsl_diu_free(info->screen_base, 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); -} - -/* - * 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; -} - -/* - * 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 *machine_data = mfbi->parent; - struct diu_ad *ad = mfbi->ad; - struct diu __iomem *hw; - - hw = machine_data->diu_reg; - - set_fix(info); - mfbi->cursor_reset = 1; - - 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; - } - } - - ad->pix_fmt = diu_ops.get_pixel_format(machine_data->monitor_port, - 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; - 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; - default: - dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd); - return -ENOIOCTLCMD; - } - - return 0; -} - -/* 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_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) - 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, -}; - -static int init_fbinfo(struct fb_info *info) -{ - struct mfb_info *mfbi = info->par; - - info->device = NULL; - info->var.activate = FB_ACTIVATE_NOW; - info->fbops = &fsl_diu_ops; - info->flags = FBINFO_FLAG_DEFAULT; - info->pseudo_palette = &mfbi->pseudo_palette; - - /* Allocate colormap */ - fb_alloc_cmap(&info->cmap, 16, 0); - return 0; -} - -static int __devinit install_fb(struct fb_info *info) -{ - int rc; - struct mfb_info *mfbi = info->par; - 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; - - if (init_fbinfo(info)) - return -EINVAL; - - if (mfbi->index == PLANE0) { - if (mfbi->edid_data) { - /* Now build modedb from EDID */ - fb_edid_to_monspecs(mfbi->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) && mfbi->edid_data) - 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; - - if (mfbi->index == PLANE0) - kfree(mfbi->edid_data); - - 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; - unsigned int 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; -} - -static int request_irq_local(struct fsl_diu_data *machine_data) -{ - struct diu __iomem *hw = machine_data->diu_reg; - u32 ints; - int ret; - - /* Read to clear the status */ - in_be32(&hw->int_status); - - ret = request_irq(machine_data->irq, fsl_diu_isr, 0, "fsl-diu-fb", hw); - if (!ret) { - ints = INT_PARERR | INT_LS_BF_VS; -#if !defined(CONFIG_NOT_COHERENT_CACHE) - ints |= INT_VSYNC; -#endif - - /* Read to clear the status */ - in_be32(&hw->int_status); - out_be32(&hw->int_mask, ints); - } - - return ret; -} - -static void free_irq_local(struct fsl_diu_data *machine_data) -{ - struct diu __iomem *hw = machine_data->diu_reg; - - /* Disable all LCDC interrupt */ - out_be32(&hw->int_mask, 0x1f); - - free_irq(machine_data->irq, NULL); -} - -#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 *machine_data; - - machine_data = dev_get_drvdata(&ofdev->dev); - disable_lcdc(machine_data->fsl_diu_info[0]); - - return 0; -} - -static int fsl_diu_resume(struct platform_device *ofdev) -{ - struct fsl_diu_data *machine_data; - - machine_data = dev_get_drvdata(&ofdev->dev); - enable_lcdc(machine_data->fsl_diu_info[0]); - - return 0; -} - -#else -#define fsl_diu_suspend NULL -#define fsl_diu_resume NULL -#endif /* CONFIG_PM */ - -/* Align to 64-bit(8-byte), 32-byte, etc. */ -static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, - u32 bytes_align) -{ - u32 offset; - dma_addr_t mask; - - buf->vaddr = - dma_alloc_coherent(dev, size + bytes_align, &buf->paddr, - GFP_DMA | __GFP_ZERO); - if (!buf->vaddr) - return -ENOMEM; - - mask = bytes_align - 1; - offset = buf->paddr & mask; - if (offset) { - buf->offset = bytes_align - offset; - buf->paddr = buf->paddr + offset; - } else - buf->offset = 0; - - return 0; -} - -static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, - u32 bytes_align) -{ - dma_free_coherent(dev, size + bytes_align, buf->vaddr, - buf->paddr - buf->offset); -} - -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 *machine_data = - container_of(attr, struct fsl_diu_data, dev_attr); - - old_monitor_port = machine_data->monitor_port; - machine_data->monitor_port = fsl_diu_name_to_port(buf); - - if (old_monitor_port != machine_data->monitor_port) { - /* All AOIs need adjust pixel format - * fsl_diu_set_par only change the pixsel format here - * unlikely to fail. */ - fsl_diu_set_par(machine_data->fsl_diu_info[0]); - fsl_diu_set_par(machine_data->fsl_diu_info[1]); - fsl_diu_set_par(machine_data->fsl_diu_info[2]); - fsl_diu_set_par(machine_data->fsl_diu_info[3]); - fsl_diu_set_par(machine_data->fsl_diu_info[4]); - } - return count; -} - -static ssize_t show_monitor(struct device *device, - struct device_attribute *attr, char *buf) -{ - struct fsl_diu_data *machine_data = - container_of(attr, struct fsl_diu_data, dev_attr); - - switch (machine_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 __devinit fsl_diu_probe(struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - struct mfb_info *mfbi; - phys_addr_t dummy_ad_addr = 0; - int ret, i, error = 0; - struct fsl_diu_data *machine_data; - int diu_mode; - - machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); - if (!machine_data) - return -ENOMEM; - - spin_lock_init(&machine_data->reg_lock); - - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { - machine_data->fsl_diu_info[i] = - framebuffer_alloc(sizeof(struct mfb_info), &pdev->dev); - if (!machine_data->fsl_diu_info[i]) { - dev_err(&pdev->dev, "cannot allocate memory\n"); - ret = -ENOMEM; - goto error2; - } - mfbi = machine_data->fsl_diu_info[i]->par; - memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); - mfbi->parent = machine_data; - - if (mfbi->index == PLANE0) { - const u8 *prop; - int len; - - /* Get EDID */ - prop = of_get_property(np, "edid", &len); - if (prop && len == EDID_LENGTH) - mfbi->edid_data = kmemdup(prop, EDID_LENGTH, - GFP_KERNEL); - } - } - - machine_data->diu_reg = of_iomap(np, 0); - if (!machine_data->diu_reg) { - dev_err(&pdev->dev, "cannot map DIU registers\n"); - ret = -EFAULT; - goto error2; - } - - diu_mode = in_be32(&machine_data->diu_reg->diu_mode); - if (diu_mode == MFB_MODE0) - out_be32(&machine_data->diu_reg->diu_mode, 0); /* disable DIU */ - - /* Get the IRQ of the DIU */ - machine_data->irq = irq_of_parse_and_map(np, 0); - - if (!machine_data->irq) { - dev_err(&pdev->dev, "could not get DIU IRQ\n"); - ret = -EINVAL; - goto error; - } - machine_data->monitor_port = monitor_port; - - /* Area descriptor memory pool aligns to 64-bit boundary */ - if (allocate_buf(&pdev->dev, &machine_data->ad, - sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) - return -ENOMEM; - - /* Get memory for Gamma Table - 32-byte aligned memory */ - if (allocate_buf(&pdev->dev, &machine_data->gamma, 768, 32)) { - ret = -ENOMEM; - goto error; - } - - /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ - if (allocate_buf(&pdev->dev, &machine_data->cursor, - MAX_CURS * MAX_CURS * 2, 32)) { - ret = -ENOMEM; - goto error; - } - - i = ARRAY_SIZE(machine_data->fsl_diu_info); - machine_data->dummy_ad = (struct diu_ad *)((u32)machine_data->ad.vaddr + - machine_data->ad.offset) + i; - machine_data->dummy_ad->paddr = machine_data->ad.paddr + - i * sizeof(struct diu_ad); - machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); - if (!machine_data->dummy_aoi_virt) { - ret = -ENOMEM; - goto error; - } - machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); - machine_data->dummy_ad->pix_fmt = 0x88882317; - machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); - machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); - machine_data->dummy_ad->offset_xyi = 0; - machine_data->dummy_ad->offset_xyd = 0; - machine_data->dummy_ad->next_ad = 0; - - /* - * Let DIU display splash screen if it was pre-initialized - * by the bootloader, set dummy area descriptor otherwise. - */ - if (diu_mode == MFB_MODE0) - out_be32(&machine_data->diu_reg->desc[0], - machine_data->dummy_ad->paddr); - - out_be32(&machine_data->diu_reg->desc[1], machine_data->dummy_ad->paddr); - out_be32(&machine_data->diu_reg->desc[2], machine_data->dummy_ad->paddr); - - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { - machine_data->fsl_diu_info[i]->fix.smem_start = 0; - mfbi = machine_data->fsl_diu_info[i]->par; - mfbi->ad = (struct diu_ad *)((u32)machine_data->ad.vaddr - + machine_data->ad.offset) + i; - mfbi->ad->paddr = - machine_data->ad.paddr + i * sizeof(struct diu_ad); - ret = install_fb(machine_data->fsl_diu_info[i]); - if (ret) { - dev_err(&pdev->dev, "could not register fb %d\n", i); - goto error; - } - } - - if (request_irq_local(machine_data)) { - dev_err(&pdev->dev, "could not claim irq\n"); - goto error; - } - - sysfs_attr_init(&machine_data->dev_attr.attr); - machine_data->dev_attr.attr.name = "monitor"; - machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; - machine_data->dev_attr.show = show_monitor; - machine_data->dev_attr.store = store_monitor; - error = device_create_file(machine_data->fsl_diu_info[0]->dev, - &machine_data->dev_attr); - if (error) { - dev_err(&pdev->dev, "could not create sysfs file %s\n", - machine_data->dev_attr.attr.name); - } - - dev_set_drvdata(&pdev->dev, machine_data); - return 0; - -error: - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) - uninstall_fb(machine_data->fsl_diu_info[i]); - - if (machine_data->ad.vaddr) - free_buf(&pdev->dev, &machine_data->ad, - sizeof(struct diu_ad) * FSL_AOI_NUM, 8); - if (machine_data->gamma.vaddr) - free_buf(&pdev->dev, &machine_data->gamma, 768, 32); - if (machine_data->cursor.vaddr) - free_buf(&pdev->dev, &machine_data->cursor, - MAX_CURS * MAX_CURS * 2, 32); - if (machine_data->dummy_aoi_virt) - fsl_diu_free(machine_data->dummy_aoi_virt, 64); - iounmap(machine_data->diu_reg); - -error2: - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) - if (machine_data->fsl_diu_info[i]) - framebuffer_release(machine_data->fsl_diu_info[i]); - kfree(machine_data); - - return ret; -} - -static int fsl_diu_remove(struct platform_device *pdev) -{ - struct fsl_diu_data *machine_data; - int i; - - machine_data = dev_get_drvdata(&pdev->dev); - disable_lcdc(machine_data->fsl_diu_info[0]); - free_irq_local(machine_data); - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) - uninstall_fb(machine_data->fsl_diu_info[i]); - if (machine_data->ad.vaddr) - free_buf(&pdev->dev, &machine_data->ad, - sizeof(struct diu_ad) * FSL_AOI_NUM, 8); - if (machine_data->gamma.vaddr) - free_buf(&pdev->dev, &machine_data->gamma, 768, 32); - if (machine_data->cursor.vaddr) - free_buf(&pdev->dev, &machine_data->cursor, - MAX_CURS * MAX_CURS * 2, 32); - if (machine_data->dummy_aoi_virt) - fsl_diu_free(machine_data->dummy_aoi_virt, 64); - iounmap(machine_data->diu_reg); - for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) - if (machine_data->fsl_diu_info[i]) - framebuffer_release(machine_data->fsl_diu_info[i]); - kfree(machine_data); - - 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 (!strict_strtoul(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; - - 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); - - of_node_put(np); - coherence_data = vmalloc(coherence_data_size); - if (!coherence_data) - 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"); - |