diff options
Diffstat (limited to 'recipes/linux/linux-omap/0002-DSS-OMAPFB-fb-driver-for-new-display-subsystem.patch')
| -rw-r--r-- | recipes/linux/linux-omap/0002-DSS-OMAPFB-fb-driver-for-new-display-subsystem.patch | 3809 |
1 files changed, 3809 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap/0002-DSS-OMAPFB-fb-driver-for-new-display-subsystem.patch b/recipes/linux/linux-omap/0002-DSS-OMAPFB-fb-driver-for-new-display-subsystem.patch new file mode 100644 index 0000000000..0d9dba3311 --- /dev/null +++ b/recipes/linux/linux-omap/0002-DSS-OMAPFB-fb-driver-for-new-display-subsystem.patch @@ -0,0 +1,3809 @@ +From 2167c1818af2d302d3934185b534ea4006c407c7 Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@nokia.com> +Date: Wed, 7 Jan 2009 14:30:18 +0200 +Subject: [PATCH] DSS: OMAPFB: fb driver for new display subsystem + +Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> +--- + arch/arm/plat-omap/Makefile | 2 +- + arch/arm/plat-omap/fb-vram.c | 646 +++++++++++++ + arch/arm/plat-omap/fb.c | 22 + + arch/arm/plat-omap/include/mach/omapfb.h | 14 + + drivers/video/Kconfig | 1 + + drivers/video/Makefile | 1 + + drivers/video/omap/Kconfig | 5 +- + drivers/video/omap2/Kconfig | 42 + + drivers/video/omap2/Makefile | 2 + + drivers/video/omap2/omapfb-ioctl.c | 464 ++++++++++ + drivers/video/omap2/omapfb-main.c | 1441 ++++++++++++++++++++++++++++++ + drivers/video/omap2/omapfb-sysfs.c | 901 +++++++++++++++++++ + drivers/video/omap2/omapfb.h | 115 +++ + 13 files changed, 3653 insertions(+), 3 deletions(-) + create mode 100644 arch/arm/plat-omap/fb-vram.c + create mode 100644 drivers/video/omap2/Kconfig + create mode 100644 drivers/video/omap2/Makefile + create mode 100644 drivers/video/omap2/omapfb-ioctl.c + create mode 100644 drivers/video/omap2/omapfb-main.c + create mode 100644 drivers/video/omap2/omapfb-sysfs.c + create mode 100644 drivers/video/omap2/omapfb.h + +diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile +index 2740497..7d602a6 100644 +--- a/arch/arm/plat-omap/Makefile ++++ b/arch/arm/plat-omap/Makefile +@@ -4,7 +4,7 @@ + + # Common support + obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \ +- usb.o fb.o io.o ++ usb.o fb.o fb-vram.o io.o + obj-m := + obj-n := + obj- := +diff --git a/arch/arm/plat-omap/fb-vram.c b/arch/arm/plat-omap/fb-vram.c +new file mode 100644 +index 0000000..2994f8f +--- /dev/null ++++ b/arch/arm/plat-omap/fb-vram.c +@@ -0,0 +1,646 @@ ++/* ++ * linux/arch/arm/plat-omap/fb-vram.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++//#define DEBUG ++ ++#include <linux/vmalloc.h> ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/list.h> ++#include <linux/dma-mapping.h> ++#include <linux/proc_fs.h> ++#include <linux/seq_file.h> ++#include <linux/bootmem.h> ++ ++#include <asm/setup.h> ++ ++#include <mach/sram.h> ++#include <mach/omapfb.h> ++ ++#ifdef DEBUG ++#define DBG(format, ...) printk(KERN_DEBUG "VRAM: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define OMAP2_SRAM_START 0x40200000 ++/* Maximum size, in reality this is smaller if SRAM is partially locked. */ ++#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */ ++ ++#define REG_MAP_SIZE(_page_cnt) \ ++ ((_page_cnt + (sizeof(unsigned long) * 8) - 1) / 8) ++#define REG_MAP_PTR(_rg, _page_nr) \ ++ (((_rg)->map) + (_page_nr) / (sizeof(unsigned long) * 8)) ++#define REG_MAP_MASK(_page_nr) \ ++ (1 << ((_page_nr) & (sizeof(unsigned long) * 8 - 1))) ++ ++#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) ++ ++/* postponed regions are used to temporarily store region information at boot ++ * time when we cannot yet allocate the region list */ ++#define MAX_POSTPONED_REGIONS 10 ++ ++static int postponed_cnt __initdata; ++static struct { ++ unsigned long paddr; ++ size_t size; ++} postponed_regions[MAX_POSTPONED_REGIONS] __initdata; ++ ++struct vram_alloc { ++ struct list_head list; ++ unsigned long paddr; ++ unsigned pages; ++}; ++ ++struct vram_region { ++ struct list_head list; ++ struct list_head alloc_list; ++ unsigned long paddr; ++ void *vaddr; ++ unsigned pages; ++ unsigned dma_alloced:1; ++}; ++ ++static DEFINE_MUTEX(region_mutex); ++static LIST_HEAD(region_list); ++ ++static inline int region_mem_type(unsigned long paddr) ++{ ++ if (paddr >= OMAP2_SRAM_START && ++ paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE) ++ return OMAPFB_MEMTYPE_SRAM; ++ else ++ return OMAPFB_MEMTYPE_SDRAM; ++} ++ ++static struct vram_region *omap_vram_create_region(unsigned long paddr, ++ void *vaddr, unsigned pages) ++{ ++ struct vram_region *rm; ++ ++ rm = kzalloc(sizeof(*rm), GFP_KERNEL); ++ ++ if (rm) { ++ INIT_LIST_HEAD(&rm->alloc_list); ++ rm->paddr = paddr; ++ rm->vaddr = vaddr; ++ rm->pages = pages; ++ } ++ ++ return rm; ++} ++ ++static void omap_vram_free_region(struct vram_region *vr) ++{ ++ list_del(&vr->list); ++ kfree(vr); ++} ++ ++static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr, ++ unsigned long paddr, unsigned pages) ++{ ++ struct vram_alloc *va; ++ struct vram_alloc *new; ++ ++ new = kzalloc(sizeof(*va), GFP_KERNEL); ++ ++ if (!new) ++ return NULL; ++ ++ new->paddr = paddr; ++ new->pages = pages; ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ if (va->paddr > new->paddr) ++ break; ++ } ++ ++ list_add_tail(&new->list, &va->list); ++ ++ return new; ++} ++ ++static void omap_vram_free_allocation(struct vram_alloc *va) ++{ ++ list_del(&va->list); ++ kfree(va); ++} ++ ++static __init int omap_vram_add_region_postponed(unsigned long paddr, size_t size) ++{ ++ if (postponed_cnt == MAX_POSTPONED_REGIONS) ++ return -ENOMEM; ++ ++ postponed_regions[postponed_cnt].paddr = paddr; ++ postponed_regions[postponed_cnt].size = size; ++ ++ ++postponed_cnt; ++ ++ return 0; ++} ++ ++/* add/remove_region can be exported if there's need to add/remove regions ++ * runtime */ ++static int omap_vram_add_region(unsigned long paddr, size_t size) ++{ ++ struct vram_region *rm; ++ void *vaddr; ++ unsigned pages; ++ ++ DBG("adding region paddr %08lx size %d\n", ++ paddr, size); ++ ++ size &= PAGE_MASK; ++ pages = size >> PAGE_SHIFT; ++ ++ vaddr = ioremap_wc(paddr, size); ++ if (vaddr == NULL) ++ return -ENOMEM; ++ ++ rm = omap_vram_create_region(paddr, vaddr, pages); ++ if (rm == NULL) { ++ iounmap(vaddr); ++ return -ENOMEM; ++ } ++ ++ list_add(&rm->list, ®ion_list); ++ ++ return 0; ++} ++ ++#if 0 ++int omap_vram_remove_region(unsigned long paddr) ++{ ++ struct region *rm; ++ unsigned i; ++ ++ DBG("remove region paddr %08lx\n", paddr); ++ list_for_each_entry(rm, ®ion_list, list) ++ if (rm->paddr != paddr) ++ continue; ++ ++ if (rm->paddr != paddr) ++ return -EINVAL; ++ ++ for (i = 0; i < rm->page_cnt; i++) ++ if (region_page_reserved(rm, i)) ++ return -EBUSY; ++ ++ iounmap(rm->vaddr); ++ ++ list_del(&rm->list); ++ ++ kfree(rm); ++ ++ return 0; ++} ++#endif ++ ++int omap_vram_free(unsigned long paddr, void *vaddr, size_t size) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ unsigned start, end; ++ ++ DBG("free mem paddr %08lx vaddr %p size %d\n", ++ paddr, vaddr, size); ++ ++ size = PAGE_ALIGN(size); ++ ++ mutex_lock(®ion_mutex); ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ start = alloc->paddr; ++ end = alloc->paddr + (alloc->pages >> PAGE_SHIFT); ++ ++ if (start >= paddr && end < paddr + size) ++ goto found; ++ } ++ } ++ ++ mutex_unlock(®ion_mutex); ++ return -EINVAL; ++ ++found: ++ if (rm->dma_alloced) { ++ DBG("freeing dma-alloced\n"); ++ dma_free_writecombine(NULL, size, vaddr, paddr); ++ omap_vram_free_allocation(alloc); ++ omap_vram_free_region(rm); ++ } else { ++ omap_vram_free_allocation(alloc); ++ } ++ ++ mutex_unlock(®ion_mutex); ++ return 0; ++} ++EXPORT_SYMBOL(omap_vram_free); ++ ++#if 0 ++void *omap_vram_reserve(unsigned long paddr, size_t size) ++{ ++ ++ struct region *rm; ++ unsigned start_page; ++ unsigned end_page; ++ unsigned i; ++ void *vaddr; ++ ++ size = PAGE_ALIGN(size); ++ ++ rm = region_find_region(paddr, size); ++ ++ DBG("reserve mem paddr %08lx size %d\n", ++ paddr, size); ++ ++ BUG_ON(rm == NULL); ++ ++ start_page = (paddr - rm->paddr) >> PAGE_SHIFT; ++ end_page = start_page + (size >> PAGE_SHIFT); ++ for (i = start_page; i < end_page; i++) ++ region_reserve_page(rm, i); ++ ++ vaddr = rm->vaddr + (start_page << PAGE_SHIFT); ++ ++ return vaddr; ++} ++EXPORT_SYMBOL(omap_vram_reserve); ++#endif ++static void *_omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ void *vaddr; ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ unsigned long start, end; ++ ++ DBG("checking region %lx %d\n", rm->paddr, rm->pages); ++ ++ if (region_mem_type(rm->paddr) != mtype) ++ continue; ++ ++ start = rm->paddr; ++ ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ end = alloc->paddr; ++ ++ if (end - start >= pages << PAGE_SHIFT) ++ goto found; ++ ++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT); ++ } ++ ++ end = rm->paddr + (rm->pages << PAGE_SHIFT); ++found: ++ if (end - start < pages << PAGE_SHIFT) ++ continue; ++ ++ DBG("FOUND %lx, end %lx\n", start, end); ++ ++ if (omap_vram_create_allocation(rm, start, pages) == NULL) ++ return NULL; ++ ++ *paddr = start; ++ vaddr = rm->vaddr + (start - rm->paddr); ++ ++ return vaddr; ++ } ++ ++ return NULL; ++} ++ ++static void *_omap_vram_alloc_dma(unsigned pages, unsigned long *paddr) ++{ ++ struct vram_region *rm; ++ void *vaddr; ++ ++ vaddr = dma_alloc_writecombine(NULL, pages << PAGE_SHIFT, ++ (dma_addr_t *)paddr, GFP_KERNEL); ++ ++ if (vaddr == NULL) ++ return NULL; ++ ++ rm = omap_vram_create_region(*paddr, vaddr, pages); ++ if (rm == NULL) { ++ dma_free_writecombine(NULL, pages << PAGE_SHIFT, vaddr, ++ (dma_addr_t)*paddr); ++ return NULL; ++ } ++ ++ rm->dma_alloced = 1; ++ ++ if (omap_vram_create_allocation(rm, *paddr, pages) == NULL) { ++ dma_free_writecombine(NULL, pages << PAGE_SHIFT, vaddr, ++ (dma_addr_t)*paddr); ++ kfree(rm); ++ return NULL; ++ } ++ ++ list_add(&rm->list, ®ion_list); ++ ++ return vaddr; ++} ++ ++void *omap_vram_alloc(int mtype, size_t size, unsigned long *paddr) ++{ ++ void *vaddr; ++ unsigned pages; ++ ++ BUG_ON(mtype > OMAPFB_MEMTYPE_MAX || !size); ++ ++ DBG("alloc mem type %d size %d\n", mtype, size); ++ ++ size = PAGE_ALIGN(size); ++ pages = size >> PAGE_SHIFT; ++ ++ mutex_lock(®ion_mutex); ++ ++ vaddr = _omap_vram_alloc(mtype, pages, paddr); ++ ++ if (vaddr == NULL && mtype == OMAPFB_MEMTYPE_SDRAM) { ++ DBG("fallback to dma_alloc\n"); ++ ++ vaddr = _omap_vram_alloc_dma(pages, paddr); ++ } ++ ++ mutex_unlock(®ion_mutex); ++ ++ return vaddr; ++} ++EXPORT_SYMBOL(omap_vram_alloc); ++ ++#ifdef CONFIG_PROC_FS ++static void *r_next(struct seq_file *m, void *v, loff_t *pos) ++{ ++ struct list_head *l = v; ++ ++ (*pos)++; ++ ++ if (list_is_last(l, ®ion_list)) ++ return 0; ++ ++ return l->next; ++} ++ ++static void *r_start(struct seq_file *m, loff_t *pos) ++{ ++ loff_t p = *pos; ++ struct list_head *l = ®ion_list; ++ ++ mutex_lock(®ion_mutex); ++ ++ do { ++ l = l->next; ++ if (l == ®ion_list) ++ return NULL; ++ } while (p--); ++ ++ return l; ++} ++ ++static void r_stop(struct seq_file *m, void *v) ++{ ++ mutex_unlock(®ion_mutex); ++} ++ ++static int r_show(struct seq_file *m, void *v) ++{ ++ struct vram_region *vr; ++ struct vram_alloc *va; ++ unsigned size; ++ ++ vr = list_entry(v, struct vram_region, list); ++ ++ size = vr->pages << PAGE_SHIFT; ++ seq_printf(m, "%08lx-%08lx v:%p-%p (%d bytes) %s\n", ++ vr->paddr, vr->paddr + size, ++ vr->vaddr, vr->vaddr + size, ++ size, ++ vr->dma_alloced ? "dma_alloc" : ""); ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ size = va->pages << PAGE_SHIFT; ++ seq_printf(m, " %08lx-%08lx (%d bytes)\n", ++ va->paddr, va->paddr + size, ++ size); ++ } ++ ++ ++ ++ return 0; ++} ++ ++static const struct seq_operations resource_op = { ++ .start = r_start, ++ .next = r_next, ++ .stop = r_stop, ++ .show = r_show, ++}; ++ ++static int vram_open(struct inode *inode, struct file *file) ++{ ++ return seq_open(file, &resource_op); ++} ++ ++static const struct file_operations proc_vram_operations = { ++ .open = vram_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = seq_release, ++}; ++ ++static int __init omap_vram_create_proc(void) ++{ ++ proc_create("omap-vram", 0, NULL, &proc_vram_operations); ++ ++ return 0; ++} ++#endif ++ ++static __init int omap_vram_init(void) ++{ ++ int i, r; ++ ++ for (i = 0; i < postponed_cnt; i++) ++ omap_vram_add_region(postponed_regions[i].paddr, ++ postponed_regions[i].size); ++ ++#ifdef CONFIG_PROC_FS ++ r = omap_vram_create_proc(); ++ if (r) ++ return -ENOMEM; ++#endif ++ ++ return 0; ++} ++ ++arch_initcall(omap_vram_init); ++ ++/* boottime vram alloc stuff */ ++static u32 omapfb_sram_vram_start __initdata; ++static u32 omapfb_sram_vram_size __initdata; ++ ++static u32 omapfb_sdram_vram_start __initdata; ++static u32 omapfb_sdram_vram_size __initdata; ++ ++static u32 omapfb_def_sdram_vram_size __initdata; ++ ++static void __init omapfb_early_vram(char **p) ++{ ++ unsigned long size; ++ size = memparse(*p, p); ++ omapfb_def_sdram_vram_size = size; ++} ++__early_param("vram=", omapfb_early_vram); ++ ++/* ++ * Called from map_io. We need to call to this early enough so that we ++ * can reserve the fixed SDRAM regions before VM could get hold of them. ++ */ ++void __init omapfb_reserve_sdram(void) ++{ ++ struct bootmem_data *bdata; ++ unsigned long sdram_start, sdram_size; ++ unsigned long reserved; ++ u32 paddr; ++ u32 size; ++ ++ bdata = NODE_DATA(0)->bdata; ++ sdram_start = bdata->node_min_pfn << PAGE_SHIFT; ++ sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start; ++ reserved = 0; ++ ++ /* cmdline arg overrides the board file definition */ ++ if (omapfb_def_sdram_vram_size) { ++ size = omapfb_def_sdram_vram_size; ++ paddr = 0; ++ } else { ++ size = omapfb_sdram_vram_size; ++ paddr = omapfb_sdram_vram_start; ++ } ++ ++ if (size) { ++ if (paddr) { ++ if (paddr < sdram_start || ++ paddr + size > sdram_start + sdram_size) { ++ printk(KERN_ERR "Illegal SDRAM region for VRAM\n"); ++ return; ++ } ++ ++ reserve_bootmem(paddr, size, BOOTMEM_DEFAULT); ++ } else { ++ if (size > sdram_size) { ++ printk(KERN_ERR "Illegal SDRAM size for VRAM\n"); ++ return; ++ } ++ ++ paddr = virt_to_phys(alloc_bootmem(size)); ++ } ++ ++ reserved += size; ++ omap_vram_add_region_postponed(paddr, size); ++ } ++ ++ if (reserved) ++ pr_info("Reserving %lu bytes SDRAM for VRAM\n", reserved); ++} ++ ++/* ++ * Called at sram init time, before anything is pushed to the SRAM stack. ++ * Because of the stack scheme, we will allocate everything from the ++ * start of the lowest address region to the end of SRAM. This will also ++ * include padding for page alignment and possible holes between regions. ++ * ++ * As opposed to the SDRAM case, we'll also do any dynamic allocations at ++ * this point, since the driver built as a module would have problem with ++ * freeing / reallocating the regions. ++ */ ++unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long pstart_avail, ++ unsigned long size_avail) ++{ ++ unsigned long pend_avail; ++ unsigned long reserved; ++ u32 paddr; ++ u32 size; ++ ++ paddr = omapfb_sram_vram_start; ++ size = omapfb_sram_vram_size; ++ ++ reserved = 0; ++ pend_avail = pstart_avail + size_avail; ++ ++ ++ if (!paddr) { ++ /* Dynamic allocation */ ++ if ((size_avail & PAGE_MASK) < size) { ++ printk(KERN_ERR "Not enough SRAM for VRAM\n"); ++ return 0; ++ } ++ size_avail = (size_avail - size) & PAGE_MASK; ++ paddr = pstart_avail + size_avail; ++ } ++ ++ if (paddr < sram_pstart || ++ paddr + size > sram_pstart + sram_size) { ++ printk(KERN_ERR "Illegal SRAM region for VRAM\n"); ++ return 0; ++ } ++ ++ /* Reserve everything above the start of the region. */ ++ if (pend_avail - paddr > reserved) ++ reserved = pend_avail - paddr; ++ size_avail = pend_avail - reserved - pstart_avail; ++ ++ /* ++ * We have a kernel mapping for this already, so the ++ * driver won't have to make one. ++ */ ++ /* XXX do we need the vaddr? */ ++ /* rg.vaddr = (void *)(sram_vstart + paddr - sram_pstart); */ ++ ++ omap_vram_add_region_postponed(paddr, size); ++ ++ if (reserved) ++ pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved); ++ ++ return reserved; ++} ++ ++void __init omap2_set_sdram_vram(u32 size, u32 start) ++{ ++ omapfb_sdram_vram_start = start; ++ omapfb_sdram_vram_size = size; ++} ++ ++void __init omap2_set_sram_vram(u32 size, u32 start) ++{ ++ omapfb_sram_vram_start = start; ++ omapfb_sram_vram_size = size; ++} ++ ++#endif ++ +diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c +index 3746222..ee2cc6f 100644 +--- a/arch/arm/plat-omap/fb.c ++++ b/arch/arm/plat-omap/fb.c +@@ -327,6 +327,28 @@ static inline int omap_init_fb(void) + + arch_initcall(omap_init_fb); + ++#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) ++ ++static u64 omap_fb_dma_mask = ~(u32)0; ++ ++static struct platform_device omap_fb_device = { ++ .name = "omapfb", ++ .id = -1, ++ .dev = { ++ .dma_mask = &omap_fb_dma_mask, ++ .coherent_dma_mask = ~(u32)0, ++ .platform_data = NULL, ++ }, ++ .num_resources = 0, ++}; ++ ++static inline int omap_init_fb(void) ++{ ++ return platform_device_register(&omap_fb_device); ++} ++ ++arch_initcall(omap_init_fb); ++ + #else + + void omapfb_reserve_sdram(void) {} +diff --git a/arch/arm/plat-omap/include/mach/omapfb.h b/arch/arm/plat-omap/include/mach/omapfb.h +index b226bdf..0800f92 100644 +--- a/arch/arm/plat-omap/include/mach/omapfb.h ++++ b/arch/arm/plat-omap/include/mach/omapfb.h +@@ -90,6 +90,13 @@ enum omapfb_color_format { + OMAPFB_COLOR_CLUT_1BPP, + OMAPFB_COLOR_RGB444, + OMAPFB_COLOR_YUY422, ++ ++ OMAPFB_COLOR_ARGB16, ++ OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */ ++ OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */ ++ OMAPFB_COLOR_ARGB32, ++ OMAPFB_COLOR_RGBA32, ++ OMAPFB_COLOR_RGBX32, + }; + + struct omapfb_update_window { +@@ -393,6 +400,13 @@ extern int omapfb_update_window_async(struct fb_info *fbi, + /* in arch/arm/plat-omap/fb.c */ + extern void omapfb_set_ctrl_platform_data(void *pdata); + ++/* in arch/arm/plat-omap/fb-vram */ ++int omap_vram_free(unsigned long paddr, void *vaddr, size_t size); ++void *omap_vram_reserve(unsigned long paddr, size_t size); ++void *omap_vram_alloc(int mtype, size_t size, unsigned long *paddr); ++extern void omap2_set_sdram_vram(u32 size, u32 start); ++extern void omap2_set_sram_vram(u32 size, u32 start); ++ + #endif /* __KERNEL__ */ + + #endif /* __OMAPFB_H */ +diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig +index 3f3ce13..689a3b1 100644 +--- a/drivers/video/Kconfig ++++ b/drivers/video/Kconfig +@@ -2116,6 +2116,7 @@ config FB_PRE_INIT_FB + the bootloader. + + source "drivers/video/omap/Kconfig" ++source "drivers/video/omap2/Kconfig" + + source "drivers/video/backlight/Kconfig" + source "drivers/video/display/Kconfig" +diff --git a/drivers/video/Makefile b/drivers/video/Makefile +index e39e33e..3d9d50e 100644 +--- a/drivers/video/Makefile ++++ b/drivers/video/Makefile +@@ -120,6 +120,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o + obj-$(CONFIG_FB_XILINX) += xilinxfb.o + obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o + obj-$(CONFIG_FB_OMAP) += omap/ ++obj-$(CONFIG_OMAP2_DSS) += omap2/ + obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o + obj-$(CONFIG_FB_CARMINE) += carminefb.o + obj-$(CONFIG_FB_MB862XX) += mb862xx/ +diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig +index c355b59..541fab3 100644 +--- a/drivers/video/omap/Kconfig ++++ b/drivers/video/omap/Kconfig +@@ -1,6 +1,7 @@ + config FB_OMAP + tristate "OMAP frame buffer support (EXPERIMENTAL)" +- depends on FB && ARCH_OMAP ++ depends on FB && ARCH_OMAP && (OMAP2_DSS = "n") ++ + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT +@@ -80,7 +81,7 @@ config FB_OMAP_BOOTLOADER_INIT + + config FB_OMAP_CONSISTENT_DMA_SIZE + int "Consistent DMA memory size (MB)" +- depends on FB_OMAP ++ depends on FB && ARCH_OMAP + range 1 14 + default 2 + help +diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig +new file mode 100644 +index 0000000..8be51a3 +--- /dev/null ++++ b/drivers/video/omap2/Kconfig +@@ -0,0 +1,42 @@ ++config FB_OMAP2 ++ tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)" ++ depends on FB && OMAP2_DSS ++ ++ select FB_CFB_FILLRECT ++ select FB_CFB_COPYAREA ++ select FB_CFB_IMAGEBLIT ++ help ++ Frame buffer driver for OMAP2/3 based boards. ++ ++config FB_OMAP2_DEBUG ++ bool "Debug support for OMAP2/3 FB" ++ default y ++ depends on FB_OMAP2 ++ help ++ Support for debug output. You have to enable the actual printing ++ with debug module parameter. ++ ++config FB_OMAP2_FORCE_AUTO_UPDATE ++ bool "Force main display to automatic update mode" ++ depends on FB_OMAP2 ++ help ++ Forces main display to automatic update mode (if possible), ++ and also enables tearsync (if possible). By default ++ displays that support manual update are started in manual ++ update mode. ++ ++config FB_OMAP2_NUM_FBS ++ int "Number of framebuffers" ++ range 1 10 ++ default 3 ++ depends on FB_OMAP2 ++ help ++ Select the number of framebuffers created. OMAP2/3 has 3 overlays ++ so normally this would be 3. ++ ++menu "OMAP2/3 Display Device Drivers" ++ depends on OMAP2_DSS ++ ++ ++endmenu ++ +diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile +new file mode 100644 +index 0000000..51c2e00 +--- /dev/null ++++ b/drivers/video/omap2/Makefile +@@ -0,0 +1,2 @@ ++obj-$(CONFIG_FB_OMAP2) += omapfb.o ++omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o +diff --git a/drivers/video/omap2/omapfb-ioctl.c b/drivers/video/omap2/omapfb-ioctl.c +new file mode 100644 +index 0000000..1f0f044 +--- /dev/null ++++ b/drivers/video/omap2/omapfb-ioctl.c +@@ -0,0 +1,464 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-ioctl.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/fb.h> ++#include <linux/device.h> ++#include <linux/uaccess.h> ++#include <linux/platform_device.h> ++#include <linux/mm.h> ++ ++#include <mach/display.h> ++#include <mach/omapfb.h> ++ ++#include "omapfb.h" ++ ++static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ struct omap_overlay *ovl; ++ int r = 0; ++ ++ DBG("omapfb_setup_plane\n"); ++ ++ omapfb_lock(fbdev); ++ ++ if (ofbi->num_overlays != 1) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ /* XXX uses only the first overlay */ ++ ovl = ofbi->overlays[0]; ++ ++ if (pi->enabled && !ofbi->region.size) { ++ /* ++ * This plane's memory was freed, can't enable it ++ * until it's reallocated. ++ */ ++ r = -EINVAL; ++ goto out; ++ } ++ ++ if (pi->enabled) { ++ r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y, ++ pi->out_width, pi->out_height); ++ if (r) ++ goto out; ++ } ++ ++ r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y, ++ pi->out_width, pi->out_height); ++ if (r) ++ goto out; ++ ++ ovl->enable(ovl, pi->enabled); ++ ++ if (ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ ++ if (display) { ++ if (display->sync) ++ display->sync(display); ++ ++ if (display->update) ++ display->update(display, 0, 0, ++ display->panel->timings.x_res, ++ display->panel->timings.y_res); ++ } ++ ++out: ++ omapfb_unlock(fbdev); ++ if (r) ++ dev_err(fbdev->dev, "setup_plane failed\n"); ++ return r; ++} ++ ++static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ ++ omapfb_lock(fbdev); ++ ++ if (ofbi->num_overlays != 1) { ++ memset(pi, 0, sizeof(*pi)); ++ } else { ++ struct omap_overlay_info *ovli; ++ struct omap_overlay *ovl; ++ ++ ovl = ofbi->overlays[0]; ++ ovli = &ovl->info; ++ ++ pi->pos_x = ovli->pos_x; ++ pi->pos_y = ovli->pos_y; ++ pi->enabled = ovli->enabled; ++ pi->channel_out = 0; /* xxx */ ++ pi->mirror = 0; ++ pi->out_width = ovli->out_width; ++ pi->out_height = ovli->out_height; ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return 0; ++} ++ ++static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omapfb_mem_region *rg; ++ struct omap_display *display = fb2display(fbi); ++ int r, i; ++ size_t size; ++ ++ if (mi->type > OMAPFB_MEMTYPE_MAX) ++ return -EINVAL; ++ ++ size = PAGE_ALIGN(mi->size); ++ ++ rg = &ofbi->region; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->info.enabled) { ++ r = -EBUSY; ++ goto out; ++ } ++ } ++ ++ if (rg->size != size || rg->type != mi->type) { ++ struct fb_var_screeninfo new_var; ++ unsigned long old_size = rg->size; ++ ++ if (display->sync) ++ display->sync(display); ++ ++ r = omapfb_realloc_fbmem(fbdev, ofbi->id, size); ++ if (r) ++ goto out; ++ ++ if (old_size != size) { ++ if (size) { ++ memcpy(&new_var, &fbi->var, sizeof(new_var)); ++ r = check_fb_var(fbi, &new_var); ++ if (r < 0) ++ goto out; ++ memcpy(&fbi->var, &new_var, sizeof(fbi->var)); ++ set_fb_fix(fbi); ++ } else { ++ /* ++ * Set these explicitly to indicate that the ++ * plane memory is dealloce'd, the other ++ * screen parameters in var / fix are invalid. ++ */ ++ fbi->fix.smem_start = 0; ++ fbi->fix.smem_len = 0; ++ } ++ } ++ } ++ ++ r = 0; ++out: ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omapfb_mem_region *rg; ++ ++ rg = &ofbi->region; ++ memset(mi, 0, sizeof(*mi)); ++ ++ omapfb_lock(fbdev); ++ mi->size = rg->size; ++ mi->type = rg->type; ++ omapfb_unlock(fbdev); ++ ++ return 0; ++} ++ ++static int omapfb_update_window(struct fb_info *fbi, ++ u32 x, u32 y, u32 w, u32 h) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ ++ if (!display) ++ return 0; ++ ++ if (w == 0 || h == 0) ++ return 0; ++ ++ if (x + w > display->panel->timings.x_res || ++ y + h > display->panel->timings.y_res) ++ return -EINVAL; ++ ++ omapfb_lock(fbdev); ++ display->update(display, x, y, w, h); ++ omapfb_unlock(fbdev); ++ ++ return 0; ++} ++ ++static int omapfb_set_update_mode(struct fb_info *fbi, ++ enum omapfb_update_mode mode) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ enum omap_dss_update_mode um; ++ int r; ++ ++ if (!display || !display->set_update_mode) ++ return -EINVAL; ++ ++ switch (mode) { ++ case OMAPFB_UPDATE_DISABLED: ++ um = OMAP_DSS_UPDATE_DISABLED; ++ break; ++ ++ case OMAPFB_AUTO_UPDATE: ++ um = OMAP_DSS_UPDATE_AUTO; ++ break; ++ ++ case OMAPFB_MANUAL_UPDATE: ++ um = OMAP_DSS_UPDATE_MANUAL; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ omapfb_lock(fbdev); ++ r = display->set_update_mode(display, um); ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static int omapfb_get_update_mode(struct fb_info *fbi, ++ enum omapfb_update_mode *mode) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ enum omap_dss_update_mode m; ++ ++ if (!display || !display->get_update_mode) ++ return -EINVAL; ++ ++ omapfb_lock(fbdev); ++ m = display->get_update_mode(display); ++ omapfb_unlock(fbdev); ++ ++ switch (m) { ++ case OMAP_DSS_UPDATE_DISABLED: ++ *mode = OMAPFB_UPDATE_DISABLED; ++ break; ++ case OMAP_DSS_UPDATE_AUTO: ++ *mode = OMAPFB_AUTO_UPDATE; ++ break; ++ case OMAP_DSS_UPDATE_MANUAL: ++ *mode = OMAPFB_MANUAL_UPDATE; ++ break; ++ default: ++ BUG(); ++ } ++ ++ return 0; ++} ++ ++int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ ++ union { ++ struct omapfb_update_window_old uwnd_o; ++ struct omapfb_update_window uwnd; ++ struct omapfb_plane_info plane_info; ++ struct omapfb_caps caps; ++ struct omapfb_mem_info mem_info; ++ enum omapfb_update_mode update_mode; ++ int test_num; ++ } p; ++ ++ int r = 0; ++ ++ DBG("ioctl %x (%d)\n", cmd, cmd & 0xff); ++ ++ switch (cmd) { ++ case OMAPFB_SYNC_GFX: ++ if (!display || !display->sync) { ++ r = -EINVAL; ++ break; ++ } ++ ++ omapfb_lock(fbdev); ++ r = display->sync(display); ++ omapfb_unlock(fbdev); ++ break; ++ ++ case OMAPFB_UPDATE_WINDOW_OLD: ++ if (!display || !display->update) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (copy_from_user(&p.uwnd_o, ++ (void __user *)arg, ++ sizeof(p.uwnd_o))) { ++ r = -EFAULT; ++ break; ++ } ++ ++ r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y, ++ p.uwnd_o.width, p.uwnd_o.height); ++ break; ++ ++ case OMAPFB_UPDATE_WINDOW: ++ if (!display || !display->update) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (copy_from_user(&p.uwnd, (void __user *)arg, ++ sizeof(p.uwnd))) { ++ r = -EFAULT; ++ break; ++ } ++ ++ r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y, ++ p.uwnd.width, p.uwnd.height); ++ break; ++ ++ case OMAPFB_SETUP_PLANE: ++ if (copy_from_user(&p.plane_info, (void __user *)arg, ++ sizeof(p.plane_info))) ++ r = -EFAULT; ++ else ++ r = omapfb_setup_plane(fbi, &p.plane_info); ++ break; ++ ++ case OMAPFB_QUERY_PLANE: ++ r = omapfb_query_plane(fbi, &p.plane_info); ++ if (r < 0) ++ break; ++ if (copy_to_user((void __user *)arg, &p.plane_info, ++ sizeof(p.plane_info))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_SETUP_MEM: ++ if (copy_from_user(&p.mem_info, (void __user *)arg, ++ sizeof(p.mem_info))) ++ r = -EFAULT; ++ else ++ r = omapfb_setup_mem(fbi, &p.mem_info); ++ break; ++ ++ case OMAPFB_QUERY_MEM: ++ r = omapfb_query_mem(fbi, &p.mem_info); ++ if (r < 0) ++ break; ++ if (copy_to_user((void __user *)arg, &p.mem_info, ++ sizeof(p.mem_info))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_GET_CAPS: ++ if (!display) { ++ r = -EINVAL; ++ break; ++ } ++ ++ p.caps.ctrl = display->caps; ++ ++ if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_SET_UPDATE_MODE: ++ if (get_user(p.update_mode, (int __user *)arg)) ++ r = -EFAULT; ++ else ++ r = omapfb_set_update_mode(fbi, p.update_mode); ++ break; ++ ++ case OMAPFB_GET_UPDATE_MODE: ++ r = omapfb_get_update_mode(fbi, &p.update_mode); ++ if (r) ++ break; ++ if (put_user(p.update_mode, ++ (enum omapfb_update_mode __user *)arg)) ++ r = -EFAULT; ++ break; ++ ++ /* LCD and CTRL tests do the same thing for backward ++ * compatibility */ ++ case OMAPFB_LCD_TEST: ++ if (get_user(p.test_num, (int __user *)arg)) { ++ r = -EFAULT; ++ break; ++ } ++ if (!display || !display->run_test) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = display->run_test(display, p.test_num); ++ ++ break; ++ ++ case OMAPFB_CTRL_TEST: ++ if (get_user(p.test_num, (int __user *)arg)) { ++ r = -EFAULT; ++ break; ++ } ++ if (!display || !display->run_test) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = display->run_test(display, p.test_num); ++ ++ break; ++ ++ default: ++ DBG("ioctl unhandled\n"); ++ r = -EINVAL; ++ } ++ ++ return r; ++} ++ ++ +diff --git a/drivers/video/omap2/omapfb-main.c b/drivers/video/omap2/omapfb-main.c +new file mode 100644 +index 0000000..76bd416 +--- /dev/null ++++ b/drivers/video/omap2/omapfb-main.c +@@ -0,0 +1,1441 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-main.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++#include <linux/fb.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/device.h> ++#include <linux/platform_device.h> ++ ++#include <mach/display.h> ++#include <mach/omapfb.h> ++ ++#include "omapfb.h" ++ ++#define MODULE_NAME "omapfb" ++ ++static char *def_mode; ++static char *def_vram; ++ ++#ifdef DEBUG ++unsigned int omapfb_debug; ++module_param_named(debug, omapfb_debug, bool, 0644); ++#endif ++ ++#ifdef DEBUG ++static void fill_fb(void *addr, struct fb_info *fbi) ++{ ++ struct fb_var_screeninfo *var = &fbi->var; ++ ++ const short w = var->xres_virtual; ++ const short h = var->yres_virtual; ++ ++ int y, x; ++ u8 *p = addr; ++ ++ for (y = 0; y < h; y++) { ++ for (x = 0; x < w; x++) { ++ if (var->bits_per_pixel == 16) { ++ u16 *pw = (u16 *)p; ++ ++ if (x < 20 && y < 20) ++ *pw = 0xffff; ++ else if (x == 20 || x == w - 20 || ++ y == 20 || y == h - 20) ++ *pw = 0xffff; ++ else if (x == y || w - x == h - y) ++ *pw = ((1<<5)-1)<<11; ++ else if (w - x == y || x == h - y) ++ *pw = ((1<<6)-1)<<5; ++ else { ++ int t = x / (w/3); ++ if (t == 0) ++ *pw = y % 32; ++ else if (t == 1) ++ *pw = (y % 64) << 5; ++ else if (t == 2) ++ *pw = (y % 32) << 11; ++ } ++ } else if (var->bits_per_pixel == 24) { ++ u8 *pb = (u8 *)p; ++ ++ int r = 0, g = 0, b = 0; ++ ++ if (x < 20 && y < 20) ++ r = g = b = 0xff; ++ else if (x == 20 || x == w - 20 || ++ y == 20 || y == h - 20) ++ r = g = b = 0xff; ++ else if (x == y || w - x == h - y) ++ r = 0xff; ++ else if (w - x == y || x == h - y) ++ g = 0xff; ++ else { ++ int q = x / (w / 3); ++ u8 base = 255 - (y % 256); ++ if (q == 0) ++ r = base; ++ else if (q == 1) ++ g = base; ++ else if (q == 2) ++ b = base; ++ } ++ ++ pb[0] = b; ++ pb[1] = g; ++ pb[2] = r; ++ ++ } else if (var->bits_per_pixel == 32) { ++ u32 *pd = (u32 *)p; ++ ++ if (x < 20 && y < 20) ++ *pd = 0xffffff; ++ else if (x == 20 || x == w - 20 || ++ y == 20 || y == h - 20) ++ *pd = 0xffffff; ++ else if (x == y || w - x == h - y) ++ *pd = 0xff0000; ++ else if (w - x == y || x == h - y) ++ *pd = 0x00ff00; ++ else { ++ u8 base = 255 - (y % 256); ++ *pd = base << ((x / (w/3)) << 3); ++ } ++ } ++ ++ p += var->bits_per_pixel >> 3; ++ } ++ } ++} ++#endif ++ ++static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var) ++{ ++ switch (var->nonstd) { ++ case 0: ++ break; ++ case OMAPFB_COLOR_YUV422: ++ return OMAP_DSS_COLOR_UYVY; ++ ++ case OMAPFB_COLOR_YUY422: ++ return OMAP_DSS_COLOR_YUV2; ++ ++ case OMAPFB_COLOR_ARGB16: ++ return OMAP_DSS_COLOR_ARGB16; ++ ++ case OMAPFB_COLOR_ARGB32: ++ return OMAP_DSS_COLOR_ARGB32; ++ ++ case OMAPFB_COLOR_RGBA32: ++ return OMAP_DSS_COLOR_RGBA32; ++ ++ case OMAPFB_COLOR_RGBX32: ++ return OMAP_DSS_COLOR_RGBX32; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ switch (var->bits_per_pixel) { ++ case 1: ++ return OMAP_DSS_COLOR_CLUT1; ++ case 2: ++ return OMAP_DSS_COLOR_CLUT2; ++ case 4: ++ return OMAP_DSS_COLOR_CLUT4; ++ case 8: ++ return OMAP_DSS_COLOR_CLUT8; ++ case 12: ++ return OMAP_DSS_COLOR_RGB12U; ++ case 16: ++ return OMAP_DSS_COLOR_RGB16; ++ case 24: ++ return OMAP_DSS_COLOR_RGB24P; ++ case 32: ++ return OMAP_DSS_COLOR_RGB24U; ++ default: ++ return -EINVAL; ++ } ++ ++ return -EINVAL; ++} ++ ++void set_fb_fix(struct fb_info *fbi) ++{ ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct omapfb_mem_region *rg = &FB2OFB(fbi)->region; ++ ++ DBG("set_fb_fix\n"); ++ ++ /* used by open/write in fbmem.c */ ++ fbi->screen_base = (char __iomem *)rg->vaddr; ++ ++ /* used by mmap in fbmem.c */ ++ fix->smem_start = rg->paddr; ++ fix->smem_len = rg->size; ++ ++ fix->type = FB_TYPE_PACKED_PIXELS; ++ ++ if (var->nonstd) ++ fix->visual = FB_VISUAL_PSEUDOCOLOR; ++ else { ++ switch (var->bits_per_pixel) { ++ case 32: ++ case 24: ++ case 16: ++ case 12: ++ fix->visual = FB_VISUAL_TRUECOLOR; ++ /* 12bpp is stored in 16 bits */ ++ break; ++ case 1: ++ case 2: ++ case 4: ++ case 8: ++ fix->visual = FB_VISUAL_PSEUDOCOLOR; ++ break; ++ } ++ } ++ ++ fix->accel = FB_ACCEL_NONE; ++ fix->line_length = (var->xres_virtual * var->bits_per_pixel) >> 3; ++ ++ fix->xpanstep = 1; ++ fix->ypanstep = 1; ++} ++ ++/* check new var and possibly modify it to be ok */ ++int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omap_display *display = fb2display(fbi); ++ unsigned long max_frame_size; ++ unsigned long line_size; ++ int xres_min, xres_max; ++ int yres_min, yres_max; ++ enum omap_color_mode mode = 0; ++ struct omap_overlay *ovl; ++ ++ DBG("check_fb_var %d\n", ofbi->id); ++ ++ if (ofbi->region.size == 0) { ++ memset(var, 0, sizeof(*var)); ++ return 0; ++ } ++ ++ if (ofbi->num_overlays == 0) { ++ dev_err(ofbi->fbdev->dev, "no overlays, aborting\n"); ++ return -EINVAL; ++ } ++ ++ /* XXX: uses the first overlay */ ++ ovl = ofbi->overlays[0]; ++ ++ /* if we are using non standard mode, fix the bpp first */ ++ switch (var->nonstd) { ++ case 0: ++ break; ++ case OMAPFB_COLOR_YUV422: ++ case OMAPFB_COLOR_YUY422: ++ case OMAPFB_COLOR_ARGB16: ++ var->bits_per_pixel = 16; ++ break; ++ case OMAPFB_COLOR_ARGB32: ++ case OMAPFB_COLOR_RGBA32: ++ case OMAPFB_COLOR_RGBX32: ++ var->bits_per_pixel = 32; ++ break; ++ default: ++ DBG("invalid nonstd mode\n"); ++ return -EINVAL; ++ } ++ ++ mode = fb_mode_to_dss_mode(var); ++ if (mode < 0) { ++ DBG("cannot convert var to omap dss mode\n"); ++ return -EINVAL; ++ } ++ ++ if ((ovl->supported_modes & mode) == 0) { ++ DBG("invalid mode\n"); ++ return -EINVAL; ++ } ++ ++ xres_min = OMAPFB_PLANE_XRES_MIN; ++ xres_max = (display ? display->panel->timings.x_res : 2048) - ovl->info.pos_x; ++ yres_min = OMAPFB_PLANE_YRES_MIN; ++ yres_max = (display ? display->panel->timings.y_res : 2048) - ovl->info.pos_y; ++ ++ if (var->xres < xres_min) ++ var->xres = xres_min; ++ if (var->yres < yres_min) ++ var->yres = yres_min; ++ if (var->xres_virtual < var->xres) ++ var->xres_virtual = var->xres; ++ if (var->yres_virtual < var->yres) ++ var->yres_virtual = var->yres; ++ max_frame_size = ofbi->region.size; ++ line_size = (var->xres_virtual * var->bits_per_pixel) >> 3; ++ ++ if (line_size * var->yres_virtual > max_frame_size) { ++ /* Try to keep yres_virtual first */ ++ line_size = max_frame_size / var->yres_virtual; ++ var->xres_virtual = line_size * 8 / var->bits_per_pixel; ++ if (var->xres_virtual < var->xres) { ++ /* Still doesn't fit. Shrink yres_virtual too */ ++ var->xres_virtual = var->xres; ++ line_size = var->xres * var->bits_per_pixel / 8; ++ var->yres_virtual = max_frame_size / line_size; ++ } ++ /* Recheck this, as the virtual size changed. */ ++ if (var->xres_virtual < var->xres) ++ var->xres = var->xres_virtual; ++ if (var->yres_virtual < var->yres) ++ var->yres = var->yres_virtual; ++ if (var->xres < xres_min || var->yres < yres_min) { ++ DBG("Cannot fit FB to memory\n"); ++ return -EINVAL; ++ } ++ } ++ if (var->xres + var->xoffset > var->xres_virtual) ++ var->xoffset = var->xres_virtual - var->xres; ++ if (var->yres + var->yoffset > var->yres_virtual) ++ var->yoffset = var->yres_virtual - var->yres; ++ ++ if (var->bits_per_pixel == 16) { ++ var->red.offset = 11; var->red.length = 5; ++ var->red.msb_right = 0; ++ var->green.offset = 5; var->green.length = 6; ++ var->green.msb_right = 0; ++ var->blue.offset = 0; var->blue.length = 5; ++ var->blue.msb_right = 0; ++ } else if (var->bits_per_pixel == 24) { ++ var->red.offset = 16; var->red.length = 8; ++ var->red.msb_right = 0; ++ var->green.offset = 8; var->green.length = 8; ++ var->green.msb_right = 0; ++ var->blue.offset = 0; var->blue.length = 8; ++ var->blue.msb_right = 0; ++ var->transp.offset = 0; var->transp.length = 0; ++ } else if (var->bits_per_pixel == 32) { ++ var->red.offset = 16; var->red.length = 8; ++ var->red.msb_right = 0; ++ var->green.offset = 8; var->green.length = 8; ++ var->green.msb_right = 0; ++ var->blue.offset = 0; var->blue.length = 8; ++ var->blue.msb_right = 0; ++ var->transp.offset = 0; var->transp.length = 0; ++ } else { ++ DBG("failed to setup fb color mask\n"); ++ return -EINVAL; ++ } ++ ++ DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", ++ var->xres, var->yres, ++ var->xres_virtual, var->yres_virtual); ++ ++ var->height = -1; ++ var->width = -1; ++ var->grayscale = 0; ++ ++ if (display && display->get_timings) { ++ struct omap_video_timings timings; ++ display->get_timings(display, &timings); ++ ++ /* pixclock in ps, the rest in pixclock */ ++ var->pixclock = timings.pixel_clock != 0 ? ++ KHZ2PICOS(timings.pixel_clock) : ++ 0; ++ var->left_margin = timings.hfp; ++ var->right_margin = timings.hbp; ++ var->upper_margin = timings.vfp; ++ var->lower_margin = timings.vbp; ++ var->hsync_len = timings.hsw; ++ var->vsync_len = timings.vsw; ++ } else { ++ var->pixclock = 0; ++ var->left_margin = 0; ++ var->right_margin = 0; ++ var->upper_margin = 0; ++ var->lower_margin = 0; ++ var->hsync_len = 0; ++ var->vsync_len = 0; ++ } ++ ++ /* TODO: get these from panel->config */ ++ var->vmode = FB_VMODE_NONINTERLACED; ++ var->sync = 0; ++ ++ return 0; ++} ++ ++/* ++ * --------------------------------------------------------------------------- ++ * fbdev framework callbacks ++ * --------------------------------------------------------------------------- ++ */ ++static int omapfb_open(struct fb_info *fbi, int user) ++{ ++ return 0; ++} ++ ++static int omapfb_release(struct fb_info *fbi, int user) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ ++ DBG("Closing fb with plane index %d\n", ofbi->id); ++ ++ omapfb_lock(fbdev); ++#if 1 ++ if (display) { ++ /* XXX Is this really needed ? */ ++ if (display->sync) ++ display->sync(display); ++ ++ if (display->update) ++ display->update(display, ++ 0, 0, ++ display->panel->timings.x_res, ++ display->panel->timings.y_res); ++ } ++#endif ++ ++ if (display && display->sync) ++ display->sync(display); ++ ++ omapfb_unlock(fbdev); ++ ++ return 0; ++} ++ ++/* setup overlay according to the fb */ ++int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, ++ int posx, int posy, int outw, int outh) ++{ ++ int r = 0; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct fb_var_screeninfo *var = &fbi->var; ++ enum omap_color_mode mode = 0; ++ int offset; ++ u32 data_start_p; ++ void *data_start_v; ++ ++ DBG("setup_overlay %d\n", ofbi->id); ++ ++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 && ++ (outw != var->xres || outh != var->yres)) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ offset = ((var->yoffset * var->xres_virtual + ++ var->xoffset) * var->bits_per_pixel) >> 3; ++ ++ data_start_p = ofbi->region.paddr + offset; ++ data_start_v = ofbi->region.vaddr + offset; ++ ++ mode = fb_mode_to_dss_mode(var); ++ ++ if (mode == -EINVAL) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ r = ovl->setup_input(ovl, ++ data_start_p, data_start_v, ++ var->xres_virtual, ++ var->xres, var->yres, ++ mode); ++ ++ if (r) ++ goto err; ++ ++ r = ovl->setup_output(ovl, ++ posx, posy, ++ outw, outh); ++ ++ if (r) ++ goto err; ++ ++ return 0; ++ ++err: ++ DBG("setup_overlay failed\n"); ++ return r; ++} ++ ++/* apply var to the overlay */ ++int omapfb_apply_changes(struct fb_info *fbi, int init) ++{ ++ int r = 0; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct omap_overlay *ovl; ++ int posx, posy; ++ int outw, outh; ++ int i; ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ ovl = ofbi->overlays[i]; ++ ++ DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); ++ ++ if (ofbi->region.size == 0) { ++ /* the fb is not available. disable the overlay */ ++ ovl->enable(ovl, 0); ++ if (!init && ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ continue; ++ } ++ ++ if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { ++ outw = var->xres; ++ outh = var->yres; ++ } else { ++ outw = ovl->info.out_width; ++ outh = ovl->info.out_height; ++ } ++ ++ if (init) { ++ posx = 0; ++ posy = 0; ++ } else { ++ posx = ovl->info.pos_x; ++ posy = ovl->info.pos_y; ++ } ++ ++ r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); ++ if (r) ++ goto err; ++ ++ if (!init && ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ } ++ return 0; ++err: ++ DBG("apply_changes failed\n"); ++ return r; ++} ++ ++/* checks var and eventually tweaks it to something supported, ++ * DO NOT MODIFY PAR */ ++static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) ++{ ++ int r; ++ ++ DBG("check_var(%d)\n", FB2OFB(fbi)->id); ++ ++ r = check_fb_var(fbi, var); ++ ++ return r; ++} ++ ++/* set the video mode according to info->var */ ++static int omapfb_set_par(struct fb_info *fbi) ++{ ++ int r; ++ ++ DBG("set_par(%d)\n", FB2OFB(fbi)->id); ++ ++ set_fb_fix(fbi); ++ r = omapfb_apply_changes(fbi, 0); ++ ++ return r; ++} ++ ++static void omapfb_rotate(struct fb_info *fbi, int rotate) ++{ ++ DBG("rotate(%d)\n", FB2OFB(fbi)->id); ++ return; ++} ++ ++static int omapfb_pan_display(struct fb_var_screeninfo *var, ++ struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ int r = 0; ++ ++ DBG("pan_display(%d)\n", ofbi->id); ++ ++ omapfb_lock(fbdev); ++ ++ if (var->xoffset != fbi->var.xoffset || ++ var->yoffset != fbi->var.yoffset) { ++ struct fb_var_screeninfo new_var; ++ ++ new_var = fbi->var; ++ new_var.xoffset = var->xoffset; ++ new_var.yoffset = var->yoffset; ++ ++ r = check_fb_var(fbi, &new_var); ++ ++ if (r == 0) { ++ fbi->var = new_var; ++ set_fb_fix(fbi); ++ r = omapfb_apply_changes(fbi, 0); ++ } ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static void mmap_user_open(struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; ++ ++ atomic_inc(&ofbi->map_count); ++} ++ ++static void mmap_user_close(struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; ++ ++ atomic_dec(&ofbi->map_count); ++} ++ ++static struct vm_operations_struct mmap_user_ops = { ++ .open = mmap_user_open, ++ .close = mmap_user_close, ++}; ++ ++static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb_mem_region *rg = &ofbi->region; ++ unsigned long off; ++ unsigned long start; ++ u32 len; ++ ++ if (vma->vm_end - vma->vm_start == 0) ++ return 0; ++ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) ++ return -EINVAL; ++ off = vma->vm_pgoff << PAGE_SHIFT; ++ ++ start = rg->paddr; ++ len = rg->size; ++ if (off >= len) ++ return -EINVAL; ++ if ((vma->vm_end - vma->vm_start + off) > len) ++ return -EINVAL; ++ off += start; ++ vma->vm_pgoff = off >> PAGE_SHIFT; ++ vma->vm_flags |= VM_IO | VM_RESERVED; ++ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); ++ vma->vm_ops = &mmap_user_ops; ++ vma->vm_private_data = ofbi; ++ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, ++ vma->vm_end - vma->vm_start, vma->vm_page_prot)) ++ return -EAGAIN; ++ /* vm_ops.open won't be called for mmap itself. */ ++ atomic_inc(&ofbi->map_count); ++ return 0; ++} ++ ++/* Store a single color palette entry into a pseudo palette or the hardware ++ * palette if one is available. For now we support only 16bpp and thus store ++ * the entry only to the pseudo palette. ++ */ ++static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, ++ u_int blue, u_int transp, int update_hw_pal) ++{ ++ /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ ++ /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ ++ struct fb_var_screeninfo *var = &fbi->var; ++ int r = 0; ++ ++ enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ ++ ++ /*switch (plane->color_mode) {*/ ++ switch (mode) { ++ case OMAPFB_COLOR_YUV422: ++ case OMAPFB_COLOR_YUV420: ++ case OMAPFB_COLOR_YUY422: ++ r = -EINVAL; ++ break; ++ case OMAPFB_COLOR_CLUT_8BPP: ++ case OMAPFB_COLOR_CLUT_4BPP: ++ case OMAPFB_COLOR_CLUT_2BPP: ++ case OMAPFB_COLOR_CLUT_1BPP: ++ /* ++ if (fbdev->ctrl->setcolreg) ++ r = fbdev->ctrl->setcolreg(regno, red, green, blue, ++ transp, update_hw_pal); ++ */ ++ /* Fallthrough */ ++ r = -EINVAL; ++ break; ++ case OMAPFB_COLOR_RGB565: ++ case OMAPFB_COLOR_RGB444: ++ case OMAPFB_COLOR_RGB24P: ++ case OMAPFB_COLOR_RGB24U: ++ if (r != 0) ++ break; ++ ++ if (regno < 0) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (regno < 16) { ++ u16 pal; ++ pal = ((red >> (16 - var->red.length)) << ++ var->red.offset) | ++ ((green >> (16 - var->green.length)) << ++ var->green.offset) | ++ (blue >> (16 - var->blue.length)); ++ ((u32 *)(fbi->pseudo_palette))[regno] = pal; ++ } ++ break; ++ default: ++ BUG(); ++ } ++ return r; ++} ++ ++static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, ++ u_int transp, struct fb_info *info) ++{ ++ DBG("setcolreg\n"); ++ ++ return _setcolreg(info, regno, red, green, blue, transp, 1); ++} ++ ++static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) ++{ ++ int count, index, r; ++ u16 *red, *green, *blue, *transp; ++ u16 trans = 0xffff; ++ ++ DBG("setcmap\n"); ++ ++ red = cmap->red; ++ green = cmap->green; ++ blue = cmap->blue; ++ transp = cmap->transp; ++ index = cmap->start; ++ ++ for (count = 0; count < cmap->len; count++) { ++ if (transp) ++ trans = *transp++; ++ r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, ++ count == cmap->len - 1); ++ if (r != 0) ++ return r; ++ } ++ ++ return 0; ++} ++ ++static int omapfb_blank(int blank, struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_display *display = fb2display(fbi); ++ int do_update = 0; ++ int r = 0; ++ ++ omapfb_lock(fbdev); ++ ++ switch (blank) { ++ case FB_BLANK_UNBLANK: ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) { ++ r = -EINVAL; ++ goto exit; ++ } ++ ++ if (display->resume) ++ r = display->resume(display); ++ ++ if (r == 0 && display->get_update_mode && ++ display->get_update_mode(display) == ++ OMAP_DSS_UPDATE_MANUAL) ++ do_update = 1; ++ ++ break; ++ ++ case FB_BLANK_POWERDOWN: ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) { ++ r = -EINVAL; ++ goto exit; ++ } ++ ++ if (display->suspend) ++ r = display->suspend(display); ++ ++ break; ++ ++ default: ++ r = -EINVAL; ++ } ++ ++exit: ++ omapfb_unlock(fbdev); ++ ++ if (r == 0 && do_update && display->update) ++ r = display->update(display, ++ 0, 0, ++ display->panel->timings.x_res, ++ display->panel->timings.y_res); ++ ++ return r; ++} ++ ++static struct fb_ops omapfb_ops = { ++ .owner = THIS_MODULE, ++ .fb_open = omapfb_open, ++ .fb_release = omapfb_release, ++ .fb_fillrect = cfb_fillrect, ++ .fb_copyarea = cfb_copyarea, ++ .fb_imageblit = cfb_imageblit, ++ .fb_blank = omapfb_blank, ++ .fb_ioctl = omapfb_ioctl, ++ .fb_check_var = omapfb_check_var, ++ .fb_set_par = omapfb_set_par, ++ .fb_rotate = omapfb_rotate, ++ .fb_pan_display = omapfb_pan_display, ++ .fb_mmap = omapfb_mmap, ++ .fb_setcolreg = omapfb_setcolreg, ++ .fb_setcmap = omapfb_setcmap, ++}; ++ ++static void omapfb_free_fbmem(struct omapfb2_device *fbdev, int fbnum) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[fbnum]); ++ struct omapfb_mem_region *rg; ++ ++ rg = &ofbi->region; ++ ++ if (rg->paddr) ++ if (omap_vram_free(rg->paddr, rg->vaddr, rg->size)) ++ dev_err(fbdev->dev, "VRAM FREE failed\n"); ++ ++ rg->vaddr = NULL; ++ rg->paddr = 0; ++ rg->alloc = 0; ++ rg->size = 0; ++} ++ ++static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ DBG("free all fbmem\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) ++ omapfb_free_fbmem(fbdev, i); ++ ++ return 0; ++} ++ ++static int omapfb_alloc_fbmem(struct omapfb2_device *fbdev, int fbnum, ++ unsigned long size) ++{ ++ struct omapfb_info *ofbi; ++ struct omapfb_mem_region *rg; ++ unsigned long paddr; ++ void *vaddr; ++ ++ size = PAGE_ALIGN(size); ++ ++ ofbi = FB2OFB(fbdev->fbs[fbnum]); ++ rg = &ofbi->region; ++ memset(rg, 0, sizeof(*rg)); ++ ++ DBG("allocating %lu bytes for fb %d\n", ++ size, ofbi->id); ++ ++ vaddr = omap_vram_alloc(OMAPFB_MEMTYPE_SDRAM, size, &paddr); ++ DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); ++ ++ if (vaddr == NULL) { ++ dev_err(fbdev->dev, ++ "failed to allocate framebuffer\n"); ++ return -ENOMEM; ++ } ++ ++ rg->paddr = paddr; ++ rg->vaddr = vaddr; ++ rg->size = size; ++ rg->alloc = 1; ++ ++ return 0; ++} ++ ++int omapfb_realloc_fbmem(struct omapfb2_device *fbdev, int fbnum, ++ unsigned long size) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[fbnum]); ++ struct omapfb_mem_region *rg = &ofbi->region; ++ unsigned old_size = rg->size; ++ int r; ++ ++ size = PAGE_ALIGN(size); ++ ++ omapfb_free_fbmem(fbdev, fbnum); ++ ++ if (size == 0) ++ return 0; ++ ++ r = omapfb_alloc_fbmem(fbdev, fbnum, size); ++ ++ if (r) ++ omapfb_alloc_fbmem(fbdev, fbnum, old_size); ++ ++ return r; ++} ++ ++/* allocate fbmem using display resolution as reference */ ++static int omapfb_alloc_fbmem_display(struct omapfb2_device *fbdev, int fbnum, ++ unsigned long def_vram) ++{ ++ struct omapfb_info *ofbi; ++ struct omap_display *display; ++ int bytespp; ++ unsigned long size; ++ ++ ofbi = FB2OFB(fbdev->fbs[fbnum]); ++ display = fb2display(fbdev->fbs[fbnum]); ++ ++ if (!display) ++ return 0; ++ ++ switch (display->panel->bpp) { ++ case 16: ++ bytespp = 2; ++ break; ++ case 24: ++ case 32: ++ bytespp = 4; ++ break; ++ default: ++ bytespp = 4; ++ break; ++ } ++ ++ size = display->panel->timings.x_res * display->panel->timings.y_res * ++ bytespp; ++ ++ if (def_vram > size) ++ size = def_vram; ++ ++ return omapfb_alloc_fbmem(fbdev, fbnum, size); ++} ++ ++static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) ++{ ++ int i, r; ++ unsigned long vrams[10]; ++ ++ memset(vrams, 0, sizeof(vrams)); ++ ++ if (def_vram) { ++ char *p = def_vram; ++ i = 0; ++ ++ while (true) { ++ unsigned long size; ++ ++ size = memparse(p, &p); ++ ++ if (size == 0) { ++ dev_err(fbdev->dev, "illegal vram size\n"); ++ break; ++ } ++ ++ vrams[i++] = size; ++ ++ if (*p != ',') ++ break; ++ ++ p++; ++ } ++ } ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = omapfb_alloc_fbmem_display(fbdev, i, vrams[i]); ++ ++ if (r) ++ return r; ++ } ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ struct omapfb_mem_region *rg; ++ rg = &ofbi->region; ++ ++ DBG("region%d phys %08x virt %p size=%lu\n", ++ i, ++ rg->paddr, ++ rg->vaddr, ++ rg->size); ++ } ++ ++ return 0; ++} ++ ++/* initialize fb_info, var, fix to something sane based on the display */ ++static int fbinfo_init(struct omapfb2_device *fbdev, struct fb_info *fbi) ++{ ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ struct omap_display *display = fb2display(fbi); ++ int r = 0; ++ ++ fbi->fbops = &omapfb_ops; ++ fbi->flags = FBINFO_FLAG_DEFAULT; ++ fbi->pseudo_palette = fbdev->pseudo_palette; ++ ++ strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); ++ ++ var->nonstd = 0; ++ ++ if (display) { ++ var->xres = display->panel->timings.x_res; ++ var->yres = display->panel->timings.y_res; ++ var->xres_virtual = var->xres; ++ var->yres_virtual = var->yres; ++ /* var->rotate = def_rotate; */ ++ ++ switch (display->panel->bpp) { ++ case 16: ++ var->bits_per_pixel = 16; ++ break; ++ case 18: ++ var->bits_per_pixel = 16; ++ break; ++ case 24: ++ var->bits_per_pixel = 32; ++ break; ++ default: ++ dev_err(fbdev->dev, "illegal display bpp\n"); ++ return -EINVAL; ++ } ++ } ++ ++ r = check_fb_var(fbi, var); ++ if (r) ++ goto err; ++ ++ set_fb_fix(fbi); ++ ++#ifdef DEBUG ++ if (omapfb_debug) ++ fill_fb(FB2OFB(fbi)->region.vaddr, fbi); ++#endif ++err: ++ return r; ++} ++ ++static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) ++{ ++ fb_dealloc_cmap(&fbi->cmap); ++} ++ ++ ++static void omapfb_free_resources(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ DBG("free_resources\n"); ++ ++ if (fbdev == NULL) ++ return; ++ ++ for (i = 0; i < fbdev->num_fbs; i++) ++ unregister_framebuffer(fbdev->fbs[i]); ++ ++ /* free the reserved fbmem */ ++ omapfb_free_all_fbmem(fbdev); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ fbinfo_cleanup(fbdev, fbdev->fbs[i]); ++ framebuffer_release(fbdev->fbs[i]); ++ } ++ ++ for (i = 0; i < fbdev->num_displays; i++) { ++ if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) ++ fbdev->displays[i]->disable(fbdev->displays[i]); ++ ++ omap_dss_put_display(fbdev->displays[i]); ++ } ++ ++ dev_set_drvdata(fbdev->dev, NULL); ++ kfree(fbdev); ++} ++ ++static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) ++{ ++ int r, i; ++ ++ fbdev->num_fbs = 0; ++ ++ DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); ++ ++ /* allocate fb_infos */ ++ for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { ++ struct fb_info *fbi; ++ struct omapfb_info *ofbi; ++ ++ fbi = framebuffer_alloc(sizeof(struct omapfb_info), ++ fbdev->dev); ++ ++ if (fbi == NULL) { ++ dev_err(fbdev->dev, ++ "unable to allocate memory for plane info\n"); ++ return -ENOMEM; ++ } ++ ++ fbdev->fbs[i] = fbi; ++ ++ ofbi = FB2OFB(fbi); ++ ofbi->fbdev = fbdev; ++ ofbi->id = i; ++ fbdev->num_fbs++; ++ } ++ ++ DBG("fb_infos allocated\n"); ++ ++ /* assign overlays for the fbs */ ++ for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ ++ ofbi->overlays[0] = fbdev->overlays[i]; ++ ofbi->num_overlays = 1; ++ } ++ ++ /* allocate fb memories */ ++ r = omapfb_allocate_all_fbs(fbdev); ++ if (r) { ++ dev_err(fbdev->dev, "failed to allocate fbmem\n"); ++ return r; ++ } ++ ++ DBG("fbmems allocated\n"); ++ ++ /* setup fb_infos */ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = fbinfo_init(fbdev, fbdev->fbs[i]); ++ if (r) { ++ dev_err(fbdev->dev, "failed to setup fb_info\n"); ++ return r; ++ } ++ } ++ ++ DBG("fb_infos initialized\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = register_framebuffer(fbdev->fbs[i]); ++ if (r != 0) { ++ dev_err(fbdev->dev, ++ "registering framebuffer %d failed\n", i); ++ return r; ++ } ++ } ++ ++ DBG("framebuffers registered\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = omapfb_apply_changes(fbdev->fbs[i], 1); ++ if (r) ++ dev_err(fbdev->dev, "failed to change mode\n"); ++ } ++ ++ /* Enable the first framebuffer that has overlay that is connected ++ * to display. Usually this would be the GFX plane. */ ++ r = 0; ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ int t; ++ ++ for (t = 0; t < ofbi->num_overlays; t++) { ++ struct omap_overlay *ovl = ofbi->overlays[t]; ++ if (ovl->manager && ovl->manager->display) { ++ ovl->enable(ovl, 1); ++ r = 1; ++ break; ++ } ++ } ++ ++ if (r) ++ break; ++ } ++ ++ DBG("create_framebuffers done\n"); ++ ++ return 0; ++} ++ ++int omapfb_mode_to_timings(const char *mode_str, ++ struct omap_video_timings *timings, unsigned *bpp) ++{ ++ struct fb_info fbi; ++ struct fb_var_screeninfo var; ++ struct fb_ops fbops; ++ int r; ++ ++ /* this is quite a hack, but I wanted to use the modedb and for ++ * that we need fb_info and var, so we create dummy ones */ ++ ++ memset(&fbi, 0, sizeof(fbi)); ++ memset(&var, 0, sizeof(var)); ++ memset(&fbops, 0, sizeof(fbops)); ++ fbi.fbops = &fbops; ++ ++ r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); ++ ++ if (r != 0) { ++ timings->pixel_clock = PICOS2KHZ(var.pixclock); ++ timings->hfp = var.left_margin; ++ timings->hbp = var.right_margin; ++ timings->vfp = var.upper_margin; ++ timings->vbp = var.lower_margin; ++ timings->hsw = var.hsync_len; ++ timings->vsw = var.vsync_len; ++ timings->x_res = var.xres; ++ timings->y_res = var.yres; ++ ++ switch (var.bits_per_pixel) { ++ case 16: ++ *bpp = 16; ++ break; ++ case 24: ++ case 32: ++ default: ++ *bpp = 24; ++ break; ++ } ++ ++ return 0; ++ } else { ++ return -EINVAL; ++ } ++} ++ ++static int omapfb_probe(struct platform_device *pdev) ++{ ++ struct omapfb2_device *fbdev = NULL; ++ int r = 0; ++ int i, t; ++ struct omap_overlay *ovl; ++ struct omap_display *def_display; ++ ++ DBG("omapfb_probe\n"); ++ ++ if (pdev->num_resources != 0) { ++ dev_err(&pdev->dev, "probed for an unknown device\n"); ++ r = -ENODEV; ++ goto err0; ++ } ++ ++ fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); ++ if (fbdev == NULL) { ++ r = -ENOMEM; ++ goto err0; ++ } ++ ++ mutex_init(&fbdev->mtx); ++ ++ fbdev->dev = &pdev->dev; ++ platform_set_drvdata(pdev, fbdev); ++ ++ fbdev->num_displays = 0; ++ t = omap_dss_get_num_displays(); ++ for (i = 0; i < t; i++) { ++ struct omap_display *display; ++ display = omap_dss_get_display(i); ++ if (!display) { ++ dev_err(&pdev->dev, "can't get display %d\n", i); ++ r = -EINVAL; ++ goto cleanup; ++ } ++ ++ fbdev->displays[fbdev->num_displays++] = display; ++ } ++ ++ if (fbdev->num_displays == 0) { ++ dev_err(&pdev->dev, "no displays\n"); ++ r = -EINVAL; ++ goto cleanup; ++ } ++ ++ fbdev->num_overlays = omap_dss_get_num_overlays(); ++ for (i = 0; i < fbdev->num_overlays; i++) ++ fbdev->overlays[i] = omap_dss_get_overlay(i); ++ ++ fbdev->num_managers = omap_dss_get_num_overlay_managers(); ++ for (i = 0; i < fbdev->num_managers; i++) ++ fbdev->managers[i] = omap_dss_get_overlay_manager(i); ++ ++ ++ /* gfx overlay should be the default one. find a display ++ * connected to that, and use it as default display */ ++ ovl = omap_dss_get_overlay(0); ++ if (ovl->manager && ovl->manager->display) { ++ def_display = ovl->manager->display; ++ } else { ++ dev_err(&pdev->dev, "cannot find default display\n"); ++ r = -EINVAL; ++ goto cleanup; ++ } ++ ++ if (def_mode && strlen(def_mode) > 0) ++ { ++ struct omap_video_timings timings; ++ unsigned bpp; ++ ++ if (omapfb_mode_to_timings(def_mode, &timings, &bpp) == 0) { ++ if (def_display->set_timings) ++ def_display->set_timings(def_display, &timings); ++ ++ def_display->panel->bpp = bpp; ++ } ++ } ++ ++ r = omapfb_create_framebuffers(fbdev); ++ if (r) ++ goto cleanup; ++ ++ for (i = 0; i < fbdev->num_managers; i++) { ++ struct omap_overlay_manager *mgr; ++ mgr = fbdev->managers[i]; ++ r = mgr->apply(mgr); ++ if (r) { ++ dev_err(fbdev->dev, "failed to apply dispc config\n"); ++ goto cleanup; ++ } ++ } ++ ++ DBG("mgr->apply'ed\n"); ++ ++ r = def_display->enable(def_display); ++ if (r) { ++ dev_err(fbdev->dev, "Failed to enable display '%s'\n", ++ def_display->name); ++ goto cleanup; ++ } ++ ++ /* set the update mode */ ++ if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { ++#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_AUTO); ++ if (def_display->enable_te) ++ def_display->enable_te(def_display, 1); ++#else ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_MANUAL); ++ if (def_display->enable_te) ++ def_display->enable_te(def_display, 0); ++#endif ++ } else { ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_AUTO); ++ } ++ ++ for (i = 0; i < fbdev->num_displays; i++) { ++ struct omap_display *display = fbdev->displays[i]; ++ ++ if (display->update) ++ display->update(display, ++ 0, 0, ++ display->panel->timings.x_res, ++ display->panel->timings.y_res); ++ } ++ ++ DBG("display->updated\n"); ++ ++ omapfb_create_sysfs(fbdev); ++ DBG("sysfs created\n"); ++ ++ return 0; ++ ++cleanup: ++ omapfb_free_resources(fbdev); ++err0: ++ dev_err(&pdev->dev, "failed to setup omapfb\n"); ++ return r; ++} ++ ++static int omapfb_remove(struct platform_device *pdev) ++{ ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ++ /* FIXME: wait till completion of pending events */ ++ ++ omapfb_remove_sysfs(fbdev); ++ ++ omapfb_free_resources(fbdev); ++ ++ return 0; ++} ++ ++static struct platform_driver omapfb_driver = { ++ .probe = omapfb_probe, ++ .remove = omapfb_remove, ++ .driver = { ++ .name = "omapfb", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init omapfb_init(void) ++{ ++ DBG("omapfb_init\n"); ++ ++ if (platform_driver_register(&omapfb_driver)) { ++ printk(KERN_ERR "failed to register omapfb driver\n"); ++ return -ENODEV; ++ } ++ ++ return 0; ++} ++ ++static void __exit omapfb_exit(void) ++{ ++ DBG("omapfb_exit\n"); ++ platform_driver_unregister(&omapfb_driver); ++} ++ ++module_param_named(video_mode, def_mode, charp, 0); ++module_param_named(vram, def_vram, charp, 0); ++ ++/* late_initcall to let panel/ctrl drivers loaded first. ++ * I guess better option would be a more dynamic approach, ++ * so that omapfb reacts to new panels when they are loaded */ ++late_initcall(omapfb_init); ++/*module_init(omapfb_init);*/ ++module_exit(omapfb_exit); ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); ++MODULE_LICENSE("GPL v2"); +diff --git a/drivers/video/omap2/omapfb-sysfs.c b/drivers/video/omap2/omapfb-sysfs.c +new file mode 100644 +index 0000000..4383e44 +--- /dev/null ++++ b/drivers/video/omap2/omapfb-sysfs.c +@@ -0,0 +1,901 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-sysfs.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/fb.h> ++#include <linux/sysfs.h> ++#include <linux/device.h> ++#include <linux/uaccess.h> ++#include <linux/platform_device.h> ++#include <linux/kernel.h> ++ ++#include <mach/display.h> ++#include <mach/omapfb.h> ++ ++#include "omapfb.h" ++ ++static int omapfb_attach_framebuffer(struct fb_info *fbi, ++ struct omap_overlay *ovl) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ int i, t; ++ int r; ++ ++ if (ofbi->num_overlays >= OMAPFB_MAX_OVL_PER_FB) { ++ dev_err(fbdev->dev, "fb has max number of overlays already\n"); ++ return -EINVAL; ++ } ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i] == ovl) { ++ dev_err(fbdev->dev, "fb already attached to overlay\n"); ++ return -EINVAL; ++ } ++ } ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]); ++ for (t = 0; t < ofbi2->num_overlays; t++) { ++ if (ofbi2->overlays[t] == ovl) { ++ dev_err(fbdev->dev, "overlay already in use\n"); ++ return -EINVAL; ++ } ++ } ++ } ++ ++ ofbi->overlays[ofbi->num_overlays++] = ovl; ++ ++/* ++ if (ovl->manager && ovl->manager->display) ++ omapfb_adjust_fb(fbi, ovl, 0, 0); ++*/ ++ r = omapfb_apply_changes(fbi, 1); ++ if (r) ++ return r; ++ ++ if (ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ ++ return 0; ++} ++ ++static int omapfb_detach_framebuffer(struct fb_info *fbi, ++ struct omap_overlay *ovl) ++{ ++ int i; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i] == ovl) ++ break; ++ } ++ ++ if (i == ofbi->num_overlays) { ++ dev_err(fbdev->dev, "cannot detach fb, overlay not attached\n"); ++ return -EINVAL; ++ } ++ ++ ovl->enable(ovl, 0); ++ ++ if (ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ ++ for (i = i + 1; i < ofbi->num_overlays; i++) ++ ofbi->overlays[i-1] = ofbi->overlays[i]; ++ ++ ofbi->num_overlays--; ++ ++ return 0; ++} ++ ++ ++static ssize_t show_framebuffers(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ssize_t l = 0, size = PAGE_SIZE; ++ int i, t; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ struct omapfb_mem_region *rg; ++ ++ rg = &ofbi->region; ++ ++ l += snprintf(buf + l, size - l, "%d p:%08x v:%p size:%lu t:", ++ ofbi->id, ++ rg->paddr, rg->vaddr, rg->size); ++ ++ if (ofbi->num_overlays == 0) ++ l += snprintf(buf + l, size - l, "none"); ++ ++ for (t = 0; t < ofbi->num_overlays; t++) { ++ struct omap_overlay *ovl; ++ ovl = ofbi->overlays[t]; ++ ++ l += snprintf(buf + l, size - l, "%s%s", ++ t == 0 ? "" : ",", ++ ovl->name); ++ } ++ ++ l += snprintf(buf + l, size - l, "\n"); ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return l; ++} ++ ++static struct omap_overlay *find_overlay_by_name(struct omapfb2_device *fbdev, ++ char *name) ++{ ++ int i; ++ ++ for (i = 0; i < fbdev->num_overlays; i++) ++ if (strcmp(name, fbdev->overlays[i]->name) == 0) ++ return fbdev->overlays[i]; ++ ++ return NULL; ++} ++ ++static struct omap_display *find_display_by_name(struct omapfb2_device *fbdev, ++ char *name) ++{ ++ int i; ++ ++ for (i = 0; i < fbdev->num_displays; i++) ++ if (strcmp(name, fbdev->displays[i]->name) == 0) ++ return fbdev->displays[i]; ++ ++ return NULL; ++} ++ ++static struct omap_overlay_manager *find_manager_by_name( ++ struct omapfb2_device *fbdev, ++ char *name) ++{ ++ int i; ++ ++ for (i = 0; i < fbdev->num_managers; i++) ++ if (strcmp(name, fbdev->managers[i]->name) == 0) ++ return fbdev->managers[i]; ++ ++ return NULL; ++} ++ ++static int parse_overlays(struct omapfb2_device *fbdev, char *str, ++ struct omap_overlay *ovls[]) ++{ ++ int num_ovls = 0; ++ int s, e = 0; ++ char ovlname[10]; ++ ++ while (1) { ++ struct omap_overlay *ovl; ++ ++ s = e; ++ ++ while (e < strlen(str) && str[e] != ',') ++ e++; ++ ++ strncpy(ovlname, str + s, e - s); ++ ovlname[e-s] = 0; ++ ++ DBG("searching for '%s'\n", ovlname); ++ ovl = find_overlay_by_name(fbdev, ovlname); ++ ++ if (ovl) { ++ DBG("found an overlay\n"); ++ ovls[num_ovls] = ovl; ++ num_ovls++; ++ } else { ++ DBG("unknown overlay %s\n", str); ++ return 0; ++ } ++ ++ if (e == strlen(str)) ++ break; ++ ++ e++; ++ } ++ ++ return num_ovls; ++} ++ ++static ssize_t store_framebuffers(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ int idx; ++ char fbname[3]; ++ unsigned long fbnum; ++ char ovlnames[40]; ++ int num_ovls = 0; ++ struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB]; ++ struct fb_info *fbi; ++ struct omapfb_info *ofbi; ++ int r, i; ++ ++ idx = 0; ++ while (idx < count && buf[idx] != ' ') ++ ++idx; ++ ++ if (idx == count) ++ return -EINVAL; ++ ++ if (idx >= sizeof(fbname)) ++ return -EINVAL; ++ ++ strncpy(fbname, buf, idx); ++ fbname[idx] = 0; ++ idx++; ++ ++ if (strict_strtoul(fbname, 10, &fbnum)) ++ return -EINVAL; ++ ++ r = sscanf(buf + idx, "t:%39s", ovlnames); ++ ++ if (r != 1) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ omapfb_lock(fbdev); ++ ++ if (fbnum >= fbdev->num_fbs) { ++ dev_err(dev, "fb not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ fbi = fbdev->fbs[fbnum]; ++ ofbi = FB2OFB(fbi); ++ ++ if (strcmp(ovlnames, "none") == 0) { ++ num_ovls = 0; ++ } else { ++ num_ovls = parse_overlays(fbdev, ovlnames, ovls); ++ ++ if (num_ovls == 0) { ++ dev_err(dev, "overlays not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ } ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ r = omapfb_detach_framebuffer(fbi, ofbi->overlays[i]); ++ if (r) { ++ dev_err(dev, "detach failed\n"); ++ goto err; ++ } ++ } ++ ++ if (num_ovls > 0) { ++ for (i = 0; i < num_ovls; i++) { ++ r = omapfb_attach_framebuffer(fbi, ovls[i]); ++ if (r) { ++ dev_err(dev, "attach failed\n"); ++ goto err; ++ } ++ } ++ } ++ ++ omapfb_unlock(fbdev); ++ return count; ++ ++err: ++ omapfb_unlock(fbdev); ++ return r; ++} ++ ++static ssize_t show_overlays(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ssize_t l = 0, size = PAGE_SIZE; ++ int i, mgr_num; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < fbdev->num_overlays; i++) { ++ struct omap_overlay *ovl; ++ struct omap_overlay_manager *mgr; ++ ++ ovl = fbdev->overlays[i]; ++ mgr = ovl->manager; ++ ++ for (mgr_num = 0; mgr_num < fbdev->num_managers; mgr_num++) ++ if (fbdev->managers[mgr_num] == mgr) ++ break; ++ ++ l += snprintf(buf + l, size - l, ++ "%s t:%s x:%d y:%d iw:%d ih:%d w: %d h: %d e:%d\n", ++ ovl->name, ++ mgr ? mgr->name : "none", ++ ovl->info.pos_x, ++ ovl->info.pos_y, ++ ovl->info.width, ++ ovl->info.height, ++ ovl->info.out_width, ++ ovl->info.out_height, ++ ovl->info.enabled); ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return l; ++} ++ ++static ssize_t store_overlays(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ int idx; ++ struct omap_overlay *ovl = NULL; ++ struct omap_overlay_manager *mgr; ++ int r; ++ char ovlname[10]; ++ int posx, posy, outw, outh; ++ int enabled; ++ ++ idx = 0; ++ while (idx < count && buf[idx] != ' ') ++ ++idx; ++ ++ if (idx == count) ++ return -EINVAL; ++ ++ if (idx >= sizeof(ovlname)) ++ return -EINVAL; ++ ++ strncpy(ovlname, buf, idx); ++ ovlname[idx] = 0; ++ idx++; ++ ++ omapfb_lock(fbdev); ++ ++ ovl = find_overlay_by_name(fbdev, ovlname); ++ ++ if (!ovl) { ++ dev_err(dev, "ovl not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ DBG("ovl %s found\n", ovl->name); ++ ++ mgr = ovl->manager; ++ ++ posx = ovl->info.pos_x; ++ posy = ovl->info.pos_y; ++ outw = ovl->info.out_width; ++ outh = ovl->info.out_height; ++ enabled = ovl->info.enabled; ++ ++ while (idx < count) { ++ char c; ++ int val; ++ int len; ++ char sval[10]; ++ ++ r = sscanf(buf + idx, "%c:%d%n", &c, &val, &len); ++ ++ if (r != 2) { ++ val = 0; ++ ++ r = sscanf(buf + idx, "%c:%9s%n", &c, sval, &len); ++ ++ if (r != 2) { ++ dev_err(dev, "sscanf failed, aborting\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ } else { ++ sval[0] = 0; ++ } ++ ++ switch (c) { ++ case 't': ++ if (strcmp(sval, "none") == 0) { ++ mgr = NULL; ++ } else { ++ mgr = find_manager_by_name(fbdev, sval); ++ ++ if (mgr == NULL) { ++ dev_err(dev, "no such manager\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ DBG("manager %s found\n", mgr->name); ++ } ++ ++ break; ++ ++ case 'x': ++ posx = val; ++ break; ++ ++ case 'y': ++ posy = val; ++ break; ++ ++ case 'w': ++ if (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) ++ outw = val; ++ break; ++ ++ case 'h': ++ if (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) ++ outh = val; ++ break; ++ ++ case 'e': ++ enabled = val; ++ break; ++ ++ default: ++ dev_err(dev, "unknown option %c\n", c); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ idx += len + 1; ++ } ++ ++ r = ovl->setup_output(ovl, posx, posy, outw, outh); ++ ++ if (r) { ++ dev_err(dev, "setup overlay failed\n"); ++ goto err; ++ } ++ ++ if (mgr != ovl->manager) { ++ /* detach old manager */ ++ if (ovl->manager) { ++ r = ovl->unset_manager(ovl); ++ if (r) { ++ dev_err(dev, "detach failed\n"); ++ goto err; ++ } ++ } ++ ++ if (mgr) { ++ r = ovl->set_manager(ovl, mgr); ++ if (r) { ++ dev_err(dev, "Failed to attach overlay\n"); ++ goto err; ++ } ++ } ++ } ++ ++ r = ovl->enable(ovl, enabled); ++ ++ if (r) { ++ dev_err(dev, "enable overlay failed\n"); ++ goto err; ++ } ++ ++ if (mgr) { ++ r = mgr->apply(mgr); ++ if (r) { ++ dev_err(dev, "failed to apply dispc config\n"); ++ goto err; ++ } ++ } else { ++ ovl->enable(ovl, 0); ++ } ++ ++ if (mgr && mgr->display && mgr->display->update) ++ mgr->display->update(mgr->display, ++ 0, 0, ++ mgr->display->panel->timings.x_res, ++ mgr->display->panel->timings.y_res); ++ ++ omapfb_unlock(fbdev); ++ return count; ++ ++err: ++ omapfb_unlock(fbdev); ++ return r; ++} ++ ++static ssize_t show_managers(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ssize_t l = 0, size = PAGE_SIZE; ++ int i; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < fbdev->num_managers; i++) { ++ struct omap_display *display; ++ struct omap_overlay_manager *mgr; ++ ++ mgr = fbdev->managers[i]; ++ display = mgr->display; ++ ++ l += snprintf(buf + l, size - l, "%s t:%s\n", ++ mgr->name, display ? display->name : "none"); ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return l; ++} ++ ++static ssize_t store_managers(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ int idx; ++ struct omap_overlay_manager *mgr; ++ struct omap_display *display; ++ char mgrname[10]; ++ char displayname[10]; ++ int r; ++ ++ idx = 0; ++ while (idx < count && buf[idx] != ' ') ++ ++idx; ++ ++ if (idx == count) ++ return -EINVAL; ++ ++ if (idx >= sizeof(mgrname)) ++ return -EINVAL; ++ ++ strncpy(mgrname, buf, idx); ++ mgrname[idx] = 0; ++ idx++; ++ ++ omapfb_lock(fbdev); ++ ++ mgr = find_manager_by_name(fbdev, mgrname); ++ ++ if (!mgr) { ++ dev_err(dev, "manager not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ r = sscanf(buf + idx, "t:%9s", displayname); ++ ++ if (r != 1) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ if (strcmp(displayname, "none") == 0) { ++ display = NULL; ++ } else { ++ display = find_display_by_name(fbdev, displayname); ++ ++ if (!display) { ++ dev_err(dev, "display not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ } ++ ++ if (mgr->display) { ++ r = mgr->unset_display(mgr); ++ if (r) { ++ dev_err(dev, "failed to unset display\n"); ++ goto err; ++ } ++ } ++ ++ if (display) { ++ r = mgr->set_display(mgr, display); ++ if (r) { ++ dev_err(dev, "failed to set manager\n"); ++ goto err; ++ } ++ ++ r = mgr->apply(mgr); ++ if (r) { ++ dev_err(dev, "failed to apply dispc config\n"); ++ goto err; ++ } ++ } ++ ++ omapfb_unlock(fbdev); ++ return count; ++ ++err: ++ omapfb_unlock(fbdev); ++ return r; ++} ++ ++static ssize_t show_displays(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ssize_t l = 0, size = PAGE_SIZE; ++ int i; ++ struct omap_video_timings timings; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < fbdev->num_displays; i++) { ++ struct omap_display *display; ++ enum omap_dss_update_mode mode = -1; ++ int te = 0; ++ ++ display = fbdev->displays[i]; ++ ++ if (display->get_update_mode) ++ mode = display->get_update_mode(display); ++ ++ if (display->get_te) ++ te = display->get_te(display); ++ ++ if (display->get_timings) ++ display->get_timings(display, &timings); ++ else ++ memset(&timings, 0, sizeof(timings)); ++ ++ l += snprintf(buf + l, size - l, ++ "%s e:%d u:%d t:%d h:%u/%u/%u/%u " ++ "v:%u/%u/%u/%u p:%u\n", ++ display->name, ++ display->state != OMAP_DSS_DISPLAY_DISABLED, ++ mode, te, ++ timings.x_res, ++ timings.hfp, timings.hbp, timings.hsw, ++ timings.y_res, ++ timings.vfp, timings.vbp, timings.vsw, ++ timings.pixel_clock); ++ } ++ ++ omapfb_unlock(fbdev); ++ ++ return l; ++} ++ ++static ssize_t store_displays(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ int enable; ++ struct omap_video_timings old_timings; ++ struct omap_video_timings new_timings; ++ enum omap_dss_update_mode mode; ++ struct omap_display *display = NULL; ++ int r; ++ int te; ++ char str[128]; ++ char *s, *tok; ++ ++ if (strlen(buf) > sizeof(str) - 1) ++ return -EINVAL; ++ ++ strcpy(str, buf); ++ ++ /* remove trailing linefeeds */ ++ s = str + strlen(str) - 1; ++ while (s >= str && *s == '\n') { ++ *s = 0; ++ s--; ++ } ++ ++ s = str; ++ ++ if ((tok = strsep(&s, " ")) == 0) ++ return -EINVAL; ++ ++ omapfb_lock(fbdev); ++ ++ display = find_display_by_name(fbdev, tok); ++ ++ if (!display) { ++ dev_err(dev, "display not found\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ enable = display->state != OMAP_DSS_DISPLAY_DISABLED; ++ if (display->get_update_mode) ++ mode = display->get_update_mode(display); ++ else ++ mode = 0; ++ ++ if (display->get_te) ++ te = display->get_te(display); ++ else ++ te = 0; ++ ++ if (display->get_timings) ++ display->get_timings(display, &old_timings); ++ else ++ memset(&old_timings, 0, sizeof(old_timings)); ++ ++ memcpy(&new_timings, &old_timings, sizeof(new_timings)); ++ ++ while ((tok = strsep(&s, " "))) { ++ char c, *o; ++ ++ if (strlen(tok) < 3 || tok[1] != ':') { ++ dev_err(dev, "illegal option\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ c = tok[0]; ++ o = tok + 2; ++ ++ switch (c) { ++ case 'e': ++ enable = simple_strtoul(o, NULL, 0); ++ break; ++ ++ case 'u': ++ mode = simple_strtoul(o, NULL, 0); ++ break; ++ ++ case 't': ++ te = simple_strtoul(o, NULL, 0); ++ break; ++ ++ case 'm': { ++ unsigned bpp; ++ if (omapfb_mode_to_timings(o, &new_timings, &bpp) != 0) ++ memset(&new_timings, 0, sizeof(new_timings)); ++ ++ break; ++ } ++ ++ case 'h': { ++ unsigned xres, hfp, hbp, hsw; ++ ++ if (sscanf(o, "%u/%u/%u/%u", ++ &xres, &hfp, &hbp, &hsw) != 4) { ++ dev_err(dev, "illegal horizontal timings\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ new_timings.x_res = xres; ++ new_timings.hfp = hfp; ++ new_timings.hbp = hbp; ++ new_timings.hsw = hsw; ++ break; ++ } ++ ++ case 'v': { ++ unsigned yres, vfp, vbp, vsw; ++ ++ if (sscanf(o, "%u/%u/%u/%u", ++ &yres, &vfp, &vbp, &vsw) != 4) { ++ dev_err(dev, "illegal vertical timings\n"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ new_timings.y_res = yres; ++ new_timings.vfp = vfp; ++ new_timings.vbp = vbp; ++ new_timings.vsw = vsw; ++ break; ++ } ++ ++ case 'p': ++ new_timings.pixel_clock = simple_strtoul(o, NULL, 0); ++ break; ++ ++ default: ++ dev_err(dev, "unknown option %c\n", c); ++ r = -EINVAL; ++ goto err; ++ } ++ } ++ ++ if (memcmp(&new_timings, &old_timings, sizeof(new_timings)) != 0) { ++ if (display->set_timings) ++ display->set_timings(display, &new_timings); ++ ++ /* sigh, bpp is not a setting of the display, but ++ * the overlay. */ ++ //def_display->panel->bpp = bpp; ++ } ++ ++ if (enable != (display->state != OMAP_DSS_DISPLAY_DISABLED)) { ++ if (enable) { ++ r = display->enable(display); ++ if (r) ++ dev_err(dev, "failed to enable display\n"); ++ } else { ++ display->disable(display); ++ } ++ } ++ ++ if (display->set_update_mode && display->get_update_mode) { ++ if (mode != display->get_update_mode(display)) ++ display->set_update_mode(display, mode); ++ } ++ ++ if (display->enable_te && display->get_te) { ++ if (te != display->get_te(display)) ++ display->enable_te(display, te); ++ } ++ ++ r = count; ++err: ++ omapfb_unlock(fbdev); ++ return r; ++} ++ ++ ++static DEVICE_ATTR(framebuffers, S_IRUGO | S_IWUSR, ++ show_framebuffers, store_framebuffers); ++static DEVICE_ATTR(overlays, S_IRUGO | S_IWUSR, ++ show_overlays, store_overlays); ++static DEVICE_ATTR(managers, S_IRUGO | S_IWUSR, ++ show_managers, store_managers); ++static DEVICE_ATTR(displays, S_IRUGO | S_IWUSR, ++ show_displays, store_displays); ++ ++static struct attribute *omapfb_attrs[] = { ++ &dev_attr_framebuffers.attr, ++ &dev_attr_overlays.attr, ++ &dev_attr_managers.attr, ++ &dev_attr_displays.attr, ++ NULL, ++}; ++ ++static struct attribute_group omapfb_attr_group = { ++ .attrs = omapfb_attrs, ++}; ++ ++void omapfb_create_sysfs(struct omapfb2_device *fbdev) ++{ ++ int r; ++ ++ r = sysfs_create_group(&fbdev->dev->kobj, &omapfb_attr_group); ++ if (r) ++ dev_err(fbdev->dev, "failed to create sysfs clk file\n"); ++} ++ ++void omapfb_remove_sysfs(struct omapfb2_device *fbdev) ++{ ++ sysfs_remove_group(&fbdev->dev->kobj, &omapfb_attr_group); ++} ++ +diff --git a/drivers/video/omap2/omapfb.h b/drivers/video/omap2/omapfb.h +new file mode 100644 +index 0000000..9ba4f1b +--- /dev/null ++++ b/drivers/video/omap2/omapfb.h +@@ -0,0 +1,115 @@ ++/* ++ * linux/drivers/video/omap2/omapfb.h ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ ++#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ ++ ++#ifdef CONFIG_FB_OMAP2_DEBUG ++#define DEBUG ++#endif ++ ++#ifdef DEBUG ++extern unsigned int omapfb_debug; ++#define DBG(format, ...) \ ++ if (omapfb_debug) \ ++ printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par)) ++ ++/* max number of overlays to which a framebuffer data can be direct */ ++#define OMAPFB_MAX_OVL_PER_FB 3 ++ ++/* appended to fb_info */ ++struct omapfb_info { ++ int id; ++ struct omapfb_mem_region region; ++ atomic_t map_count; ++ int num_overlays; ++ struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB]; ++ struct omapfb2_device *fbdev; ++}; ++ ++struct omapfb2_device { ++ struct device *dev; ++ struct mutex mtx; ++ ++ u32 pseudo_palette[17]; ++ ++ int state; ++ ++ int num_fbs; ++ struct fb_info *fbs[10]; ++ ++ int num_displays; ++ struct omap_display *displays[10]; ++ int num_overlays; ++ struct omap_overlay *overlays[10]; ++ int num_managers; ++ struct omap_overlay_manager *managers[10]; ++}; ++ ++void set_fb_fix(struct fb_info *fbi); ++int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var); ++int omapfb_realloc_fbmem(struct omapfb2_device *fbdev, int fbnum, ++ unsigned long size); ++int omapfb_apply_changes(struct fb_info *fbi, int init); ++int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, ++ int posx, int posy, int outw, int outh); ++ ++void omapfb_create_sysfs(struct omapfb2_device *fbdev); ++void omapfb_remove_sysfs(struct omapfb2_device *fbdev); ++ ++int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg); ++ ++int omapfb_mode_to_timings(const char *mode_str, ++ struct omap_video_timings *timings, unsigned *bpp); ++ ++/* find the display connected to this fb, if any */ ++static inline struct omap_display *fb2display(struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int i; ++ ++ /* XXX: returns the display connected to first attached overlay */ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->manager) ++ return ofbi->overlays[i]->manager->display; ++ } ++ ++ return NULL; ++} ++ ++static inline void omapfb_lock(struct omapfb2_device *fbdev) ++{ ++ mutex_lock(&fbdev->mtx); ++} ++ ++static inline void omapfb_unlock(struct omapfb2_device *fbdev) ++{ ++ mutex_unlock(&fbdev->mtx); ++} ++ ++ ++#endif +-- +1.5.6.3 + |