From a9bd32a8b4c4c2670f9ed8cae63f9378b6df3ded Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 13 Mar 2015 11:09:45 -0700 Subject: msm: msm_fb: Remove dead code This code is no longer used now that mach-msm has been removed. Delete it. Cc: Jean-Christophe Plagniol-Villard Cc: Tomi Valkeinen Cc: David Brown Cc: Bryan Huntsman Cc: Daniel Walker Signed-off-by: Stephen Boyd Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/msm/msm_fb.c | 659 --------------------------------------- 1 file changed, 659 deletions(-) delete mode 100644 drivers/video/fbdev/msm/msm_fb.c (limited to 'drivers/video/fbdev/msm/msm_fb.c') diff --git a/drivers/video/fbdev/msm/msm_fb.c b/drivers/video/fbdev/msm/msm_fb.c deleted file mode 100644 index 2979d7e72126..000000000000 --- a/drivers/video/fbdev/msm/msm_fb.c +++ /dev/null @@ -1,659 +0,0 @@ -/* drivers/video/msm/msm_fb.c - * - * Core MSM framebuffer driver. - * - * Copyright (C) 2007 Google Incorporated - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define PRINT_FPS 0 -#define PRINT_BLIT_TIME 0 - -#define SLEEPING 0x4 -#define UPDATING 0x3 -#define FULL_UPDATE_DONE 0x2 -#define WAKING 0x1 -#define AWAKE 0x0 - -#define NONE 0 -#define SUSPEND_RESUME 0x1 -#define FPS 0x2 -#define BLIT_TIME 0x4 -#define SHOW_UPDATES 0x8 - -#define DLOG(mask, fmt, args...) \ -do { \ - if (msmfb_debug_mask & mask) \ - printk(KERN_INFO "msmfb: "fmt, ##args); \ -} while (0) - -static int msmfb_debug_mask; -module_param_named(msmfb_debug_mask, msmfb_debug_mask, int, - S_IRUGO | S_IWUSR | S_IWGRP); - -struct mdp_device *mdp; - -struct msmfb_info { - struct fb_info *fb; - struct msm_panel_data *panel; - int xres; - int yres; - unsigned output_format; - unsigned yoffset; - unsigned frame_requested; - unsigned frame_done; - int sleeping; - unsigned update_frame; - struct { - int left; - int top; - int eright; /* exclusive */ - int ebottom; /* exclusive */ - } update_info; - char *black; - - spinlock_t update_lock; - struct mutex panel_init_lock; - wait_queue_head_t frame_wq; - struct work_struct resume_work; - struct msmfb_callback dma_callback; - struct msmfb_callback vsync_callback; - struct hrtimer fake_vsync; - ktime_t vsync_request_time; -}; - -static int msmfb_open(struct fb_info *info, int user) -{ - return 0; -} - -static int msmfb_release(struct fb_info *info, int user) -{ - return 0; -} - -/* Called from dma interrupt handler, must not sleep */ -static void msmfb_handle_dma_interrupt(struct msmfb_callback *callback) -{ - unsigned long irq_flags; - struct msmfb_info *msmfb = container_of(callback, struct msmfb_info, - dma_callback); - - spin_lock_irqsave(&msmfb->update_lock, irq_flags); - msmfb->frame_done = msmfb->frame_requested; - if (msmfb->sleeping == UPDATING && - msmfb->frame_done == msmfb->update_frame) { - DLOG(SUSPEND_RESUME, "full update completed\n"); - schedule_work(&msmfb->resume_work); - } - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - wake_up(&msmfb->frame_wq); -} - -static int msmfb_start_dma(struct msmfb_info *msmfb) -{ - uint32_t x, y, w, h; - unsigned addr; - unsigned long irq_flags; - uint32_t yoffset; - s64 time_since_request; - struct msm_panel_data *panel = msmfb->panel; - - spin_lock_irqsave(&msmfb->update_lock, irq_flags); - time_since_request = ktime_to_ns(ktime_sub(ktime_get(), - msmfb->vsync_request_time)); - if (time_since_request > 20 * NSEC_PER_MSEC) { - uint32_t us; - us = do_div(time_since_request, NSEC_PER_MSEC) / NSEC_PER_USEC; - printk(KERN_WARNING "msmfb_start_dma %lld.%03u ms after vsync " - "request\n", time_since_request, us); - } - if (msmfb->frame_done == msmfb->frame_requested) { - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - return -1; - } - if (msmfb->sleeping == SLEEPING) { - DLOG(SUSPEND_RESUME, "tried to start dma while asleep\n"); - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - return -1; - } - x = msmfb->update_info.left; - y = msmfb->update_info.top; - w = msmfb->update_info.eright - x; - h = msmfb->update_info.ebottom - y; - yoffset = msmfb->yoffset; - msmfb->update_info.left = msmfb->xres + 1; - msmfb->update_info.top = msmfb->yres + 1; - msmfb->update_info.eright = 0; - msmfb->update_info.ebottom = 0; - if (unlikely(w > msmfb->xres || h > msmfb->yres || - w == 0 || h == 0)) { - printk(KERN_INFO "invalid update: %d %d %d " - "%d\n", x, y, w, h); - msmfb->frame_done = msmfb->frame_requested; - goto error; - } - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - - addr = ((msmfb->xres * (yoffset + y) + x) * 2); - mdp->dma(mdp, addr + msmfb->fb->fix.smem_start, - msmfb->xres * 2, w, h, x, y, &msmfb->dma_callback, - panel->interface_type); - return 0; -error: - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - /* some clients need to clear their vsync interrupt */ - if (panel->clear_vsync) - panel->clear_vsync(panel); - wake_up(&msmfb->frame_wq); - return 0; -} - -/* Called from esync interrupt handler, must not sleep */ -static void msmfb_handle_vsync_interrupt(struct msmfb_callback *callback) -{ - struct msmfb_info *msmfb = container_of(callback, struct msmfb_info, - vsync_callback); - msmfb_start_dma(msmfb); -} - -static enum hrtimer_restart msmfb_fake_vsync(struct hrtimer *timer) -{ - struct msmfb_info *msmfb = container_of(timer, struct msmfb_info, - fake_vsync); - msmfb_start_dma(msmfb); - return HRTIMER_NORESTART; -} - -static void msmfb_pan_update(struct fb_info *info, uint32_t left, uint32_t top, - uint32_t eright, uint32_t ebottom, - uint32_t yoffset, int pan_display) -{ - struct msmfb_info *msmfb = info->par; - struct msm_panel_data *panel = msmfb->panel; - unsigned long irq_flags; - int sleeping; - int retry = 1; - - DLOG(SHOW_UPDATES, "update %d %d %d %d %d %d\n", - left, top, eright, ebottom, yoffset, pan_display); -restart: - spin_lock_irqsave(&msmfb->update_lock, irq_flags); - - /* if we are sleeping, on a pan_display wait 10ms (to throttle back - * drawing otherwise return */ - if (msmfb->sleeping == SLEEPING) { - DLOG(SUSPEND_RESUME, "drawing while asleep\n"); - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - if (pan_display) - wait_event_interruptible_timeout(msmfb->frame_wq, - msmfb->sleeping != SLEEPING, HZ/10); - return; - } - - sleeping = msmfb->sleeping; - /* on a full update, if the last frame has not completed, wait for it */ - if ((pan_display && msmfb->frame_requested != msmfb->frame_done) || - sleeping == UPDATING) { - int ret; - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - ret = wait_event_interruptible_timeout(msmfb->frame_wq, - msmfb->frame_done == msmfb->frame_requested && - msmfb->sleeping != UPDATING, 5 * HZ); - if (ret <= 0 && (msmfb->frame_requested != msmfb->frame_done || - msmfb->sleeping == UPDATING)) { - if (retry && panel->request_vsync && - (sleeping == AWAKE)) { - panel->request_vsync(panel, - &msmfb->vsync_callback); - retry = 0; - printk(KERN_WARNING "msmfb_pan_display timeout " - "rerequest vsync\n"); - } else { - printk(KERN_WARNING "msmfb_pan_display timeout " - "waiting for frame start, %d %d\n", - msmfb->frame_requested, - msmfb->frame_done); - return; - } - } - goto restart; - } - - - msmfb->frame_requested++; - /* if necessary, update the y offset, if this is the - * first full update on resume, set the sleeping state */ - if (pan_display) { - msmfb->yoffset = yoffset; - if (left == 0 && top == 0 && eright == info->var.xres && - ebottom == info->var.yres) { - if (sleeping == WAKING) { - msmfb->update_frame = msmfb->frame_requested; - DLOG(SUSPEND_RESUME, "full update starting\n"); - msmfb->sleeping = UPDATING; - } - } - } - - /* set the update request */ - if (left < msmfb->update_info.left) - msmfb->update_info.left = left; - if (top < msmfb->update_info.top) - msmfb->update_info.top = top; - if (eright > msmfb->update_info.eright) - msmfb->update_info.eright = eright; - if (ebottom > msmfb->update_info.ebottom) - msmfb->update_info.ebottom = ebottom; - DLOG(SHOW_UPDATES, "update queued %d %d %d %d %d\n", - msmfb->update_info.left, msmfb->update_info.top, - msmfb->update_info.eright, msmfb->update_info.ebottom, - msmfb->yoffset); - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - - /* if the panel is all the way on wait for vsync, otherwise sleep - * for 16 ms (long enough for the dma to panel) and then begin dma */ - msmfb->vsync_request_time = ktime_get(); - if (panel->request_vsync && (sleeping == AWAKE)) { - panel->request_vsync(panel, &msmfb->vsync_callback); - } else { - if (!hrtimer_active(&msmfb->fake_vsync)) { - hrtimer_start(&msmfb->fake_vsync, - ktime_set(0, NSEC_PER_SEC/60), - HRTIMER_MODE_REL); - } - } -} - -static void msmfb_update(struct fb_info *info, uint32_t left, uint32_t top, - uint32_t eright, uint32_t ebottom) -{ - msmfb_pan_update(info, left, top, eright, ebottom, 0, 0); -} - -static void power_on_panel(struct work_struct *work) -{ - struct msmfb_info *msmfb = - container_of(work, struct msmfb_info, resume_work); - struct msm_panel_data *panel = msmfb->panel; - unsigned long irq_flags; - - mutex_lock(&msmfb->panel_init_lock); - DLOG(SUSPEND_RESUME, "turning on panel\n"); - if (msmfb->sleeping == UPDATING) { - if (panel->unblank(panel)) { - printk(KERN_INFO "msmfb: panel unblank failed," - "not starting drawing\n"); - goto error; - } - spin_lock_irqsave(&msmfb->update_lock, irq_flags); - msmfb->sleeping = AWAKE; - wake_up(&msmfb->frame_wq); - spin_unlock_irqrestore(&msmfb->update_lock, irq_flags); - } -error: - mutex_unlock(&msmfb->panel_init_lock); -} - - -static int msmfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) -{ - if ((var->xres != info->var.xres) || - (var->yres != info->var.yres) || - (var->xres_virtual != info->var.xres_virtual) || - (var->yres_virtual != info->var.yres_virtual) || - (var->xoffset != info->var.xoffset) || - (var->bits_per_pixel != info->var.bits_per_pixel) || - (var->grayscale != info->var.grayscale)) - return -EINVAL; - return 0; -} - -int msmfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) -{ - struct msmfb_info *msmfb = info->par; - struct msm_panel_data *panel = msmfb->panel; - - /* "UPDT" */ - if ((panel->caps & MSMFB_CAP_PARTIAL_UPDATES) && - (var->reserved[0] == 0x54445055)) { - msmfb_pan_update(info, var->reserved[1] & 0xffff, - var->reserved[1] >> 16, - var->reserved[2] & 0xffff, - var->reserved[2] >> 16, var->yoffset, 1); - } else { - msmfb_pan_update(info, 0, 0, info->var.xres, info->var.yres, - var->yoffset, 1); - } - return 0; -} - -static void msmfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) -{ - cfb_fillrect(p, rect); - msmfb_update(p, rect->dx, rect->dy, rect->dx + rect->width, - rect->dy + rect->height); -} - -static void msmfb_copyarea(struct fb_info *p, const struct fb_copyarea *area) -{ - cfb_copyarea(p, area); - msmfb_update(p, area->dx, area->dy, area->dx + area->width, - area->dy + area->height); -} - -static void msmfb_imageblit(struct fb_info *p, const struct fb_image *image) -{ - cfb_imageblit(p, image); - msmfb_update(p, image->dx, image->dy, image->dx + image->width, - image->dy + image->height); -} - - -static int msmfb_blit(struct fb_info *info, - void __user *p) -{ - struct mdp_blit_req req; - struct mdp_blit_req_list req_list; - int i; - int ret; - - if (copy_from_user(&req_list, p, sizeof(req_list))) - return -EFAULT; - - for (i = 0; i < req_list.count; i++) { - struct mdp_blit_req_list *list = - (struct mdp_blit_req_list *)p; - if (copy_from_user(&req, &list->req[i], sizeof(req))) - return -EFAULT; - ret = mdp->blit(mdp, info, &req); - if (ret) - return ret; - } - return 0; -} - - -DEFINE_MUTEX(mdp_ppp_lock); - -static int msmfb_ioctl(struct fb_info *p, unsigned int cmd, unsigned long arg) -{ - void __user *argp = (void __user *)arg; - int ret; - - switch (cmd) { - case MSMFB_GRP_DISP: - mdp->set_grp_disp(mdp, arg); - break; - case MSMFB_BLIT: - ret = msmfb_blit(p, argp); - if (ret) - return ret; - break; - default: - printk(KERN_INFO "msmfb unknown ioctl: %d\n", cmd); - return -EINVAL; - } - return 0; -} - -static struct fb_ops msmfb_ops = { - .owner = THIS_MODULE, - .fb_open = msmfb_open, - .fb_release = msmfb_release, - .fb_check_var = msmfb_check_var, - .fb_pan_display = msmfb_pan_display, - .fb_fillrect = msmfb_fillrect, - .fb_copyarea = msmfb_copyarea, - .fb_imageblit = msmfb_imageblit, - .fb_ioctl = msmfb_ioctl, -}; - -static unsigned PP[16]; - - - -#define BITS_PER_PIXEL 16 - -static void setup_fb_info(struct msmfb_info *msmfb) -{ - struct fb_info *fb_info = msmfb->fb; - int r; - - /* finish setting up the fb_info struct */ - strncpy(fb_info->fix.id, "msmfb", 16); - fb_info->fix.ypanstep = 1; - - fb_info->fbops = &msmfb_ops; - fb_info->flags = FBINFO_DEFAULT; - - fb_info->fix.type = FB_TYPE_PACKED_PIXELS; - fb_info->fix.visual = FB_VISUAL_TRUECOLOR; - fb_info->fix.line_length = msmfb->xres * 2; - - fb_info->var.xres = msmfb->xres; - fb_info->var.yres = msmfb->yres; - fb_info->var.width = msmfb->panel->fb_data->width; - fb_info->var.height = msmfb->panel->fb_data->height; - fb_info->var.xres_virtual = msmfb->xres; - fb_info->var.yres_virtual = msmfb->yres * 2; - fb_info->var.bits_per_pixel = BITS_PER_PIXEL; - fb_info->var.accel_flags = 0; - - fb_info->var.yoffset = 0; - - if (msmfb->panel->caps & MSMFB_CAP_PARTIAL_UPDATES) { - /* - * Set the param in the fixed screen, so userspace can't - * change it. This will be used to check for the - * capability. - */ - fb_info->fix.reserved[0] = 0x5444; - fb_info->fix.reserved[1] = 0x5055; - - /* - * This preloads the value so that if userspace doesn't - * change it, it will be a full update - */ - fb_info->var.reserved[0] = 0x54445055; - fb_info->var.reserved[1] = 0; - fb_info->var.reserved[2] = (uint16_t)msmfb->xres | - ((uint32_t)msmfb->yres << 16); - } - - fb_info->var.red.offset = 11; - fb_info->var.red.length = 5; - fb_info->var.red.msb_right = 0; - fb_info->var.green.offset = 5; - fb_info->var.green.length = 6; - fb_info->var.green.msb_right = 0; - fb_info->var.blue.offset = 0; - fb_info->var.blue.length = 5; - fb_info->var.blue.msb_right = 0; - - r = fb_alloc_cmap(&fb_info->cmap, 16, 0); - fb_info->pseudo_palette = PP; - - PP[0] = 0; - for (r = 1; r < 16; r++) - PP[r] = 0xffffffff; -} - -static int setup_fbmem(struct msmfb_info *msmfb, struct platform_device *pdev) -{ - struct fb_info *fb = msmfb->fb; - struct resource *resource; - unsigned long size = msmfb->xres * msmfb->yres * - (BITS_PER_PIXEL >> 3) * 2; - unsigned char *fbram; - - /* board file might have attached a resource describing an fb */ - resource = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!resource) - return -EINVAL; - - /* check the resource is large enough to fit the fb */ - if (resource->end - resource->start < size) { - printk(KERN_ERR "allocated resource is too small for " - "fb\n"); - return -ENOMEM; - } - fb->fix.smem_start = resource->start; - fb->fix.smem_len = resource_size(resource); - fbram = ioremap(resource->start, resource_size(resource)); - if (fbram == NULL) { - printk(KERN_ERR "msmfb: cannot allocate fbram!\n"); - return -ENOMEM; - } - fb->screen_base = fbram; - return 0; -} - -static int msmfb_probe(struct platform_device *pdev) -{ - struct fb_info *fb; - struct msmfb_info *msmfb; - struct msm_panel_data *panel = pdev->dev.platform_data; - int ret; - - if (!panel) { - pr_err("msmfb_probe: no platform data\n"); - return -EINVAL; - } - if (!panel->fb_data) { - pr_err("msmfb_probe: no fb_data\n"); - return -EINVAL; - } - - fb = framebuffer_alloc(sizeof(struct msmfb_info), &pdev->dev); - if (!fb) - return -ENOMEM; - msmfb = fb->par; - msmfb->fb = fb; - msmfb->panel = panel; - msmfb->xres = panel->fb_data->xres; - msmfb->yres = panel->fb_data->yres; - - ret = setup_fbmem(msmfb, pdev); - if (ret) - goto error_setup_fbmem; - - setup_fb_info(msmfb); - - spin_lock_init(&msmfb->update_lock); - mutex_init(&msmfb->panel_init_lock); - init_waitqueue_head(&msmfb->frame_wq); - INIT_WORK(&msmfb->resume_work, power_on_panel); - msmfb->black = devm_kzalloc(&pdev->dev, - msmfb->fb->var.bits_per_pixel*msmfb->xres, - GFP_KERNEL); - if (!msmfb->black) { - ret = -ENOMEM; - goto error_register_framebuffer; - } - - printk(KERN_INFO "msmfb_probe() installing %d x %d panel\n", - msmfb->xres, msmfb->yres); - - msmfb->dma_callback.func = msmfb_handle_dma_interrupt; - msmfb->vsync_callback.func = msmfb_handle_vsync_interrupt; - hrtimer_init(&msmfb->fake_vsync, CLOCK_MONOTONIC, - HRTIMER_MODE_REL); - - - msmfb->fake_vsync.function = msmfb_fake_vsync; - - ret = register_framebuffer(fb); - if (ret) - goto error_register_framebuffer; - - msmfb->sleeping = WAKING; - - platform_set_drvdata(pdev, msmfb); - - return 0; - -error_register_framebuffer: - iounmap(fb->screen_base); -error_setup_fbmem: - framebuffer_release(msmfb->fb); - return ret; -} - -static int msmfb_remove(struct platform_device *pdev) -{ - struct msmfb_info *msmfb; - - msmfb = platform_get_drvdata(pdev); - - unregister_framebuffer(msmfb->fb); - iounmap(msmfb->fb->screen_base); - framebuffer_release(msmfb->fb); - - return 0; -} - -static struct platform_driver msm_panel_driver = { - /* need to write remove */ - .probe = msmfb_probe, - .remove = msmfb_remove, - .driver = {.name = "msm_panel"}, -}; - - -static int msmfb_add_mdp_device(struct device *dev, - struct class_interface *class_intf) -{ - /* might need locking if mulitple mdp devices */ - if (mdp) - return 0; - mdp = container_of(dev, struct mdp_device, dev); - return platform_driver_register(&msm_panel_driver); -} - -static void msmfb_remove_mdp_device(struct device *dev, - struct class_interface *class_intf) -{ - /* might need locking if mulitple mdp devices */ - if (dev != &mdp->dev) - return; - platform_driver_unregister(&msm_panel_driver); - mdp = NULL; -} - -static struct class_interface msm_fb_interface = { - .add_dev = &msmfb_add_mdp_device, - .remove_dev = &msmfb_remove_mdp_device, -}; - -static int __init msmfb_init(void) -{ - return register_mdp_client(&msm_fb_interface); -} - -module_init(msmfb_init); -- cgit v1.2.3-59-g8ed1b