From a65c9e7b43b33537255f934a377920f4fb47b8ed Mon Sep 17 00:00:00 2001 From: Thomas White Date: Mon, 8 Jun 2009 20:21:01 +0100 Subject: Just backing up progress Signed-off-by: Thomas White --- drivers/mfd/glamo/glamo-display.c | 151 +++++++++++++++++++++++++++++++++++++- 1 file changed, 148 insertions(+), 3 deletions(-) (limited to 'drivers/mfd/glamo/glamo-display.c') diff --git a/drivers/mfd/glamo/glamo-display.c b/drivers/mfd/glamo/glamo-display.c index e0c654f2386..afa4c11bad1 100644 --- a/drivers/mfd/glamo/glamo-display.c +++ b/drivers/mfd/glamo/glamo-display.c @@ -3,6 +3,8 @@ * * Copyright (C) 2008-2009 Thomas White * + * Based on glamo-fb.c (C) 2007-2008 by Openmoko, Inc. + * Author: Harald Welte * All rights reserved. * * This program is free software; you can redistribute it and/or @@ -61,8 +63,48 @@ #include "glamo-regs.h" +static void notify_blank(struct drm_crtc *crtc, int mode) +{ + struct fb_event event; + + event.info = info; + event.data = &blank_mode; + fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); +} + + +/* Power on/off */ static void glamo_crtc_dpms(struct drm_crtc *crtc, int mode) { + dev_dbg(gfb->dev, "glamofb_blank(%u)\n", blank_mode); + + switch (mode) { + case DRM_MODE_DPMS_OFF: + /* Simulating FB_BLANK_NORMAL allow turning off backlight */ + if (gfb->blank_mode != FB_BLANK_NORMAL) + notify_blank(info, FB_BLANK_NORMAL); + + /* LCM need notification before pixel clock is stopped */ + notify_blank(crtc, blank_mode); + + /* disable the pixel clock */ + glamo_engine_clkreg_set(gcore, GLAMO_ENGINE_LCD, + GLAMO_CLOCK_LCD_EN_DCLK, 0); + gfb->blank_mode = blank_mode; + break; + case DRM_MODE_DPMS_ON: + /* enable the pixel clock if off */ + if (gfb->blank_mode == DRM_MODE_DPMS_OFF) + glamo_engine_clkreg_set(gcore, + GLAMO_ENGINE_LCD, + GLAMO_CLOCK_LCD_EN_DCLK, + GLAMO_CLOCK_LCD_EN_DCLK); + + notify_blank(info, blank_mode); + gfb->blank_mode = blank_mode; + break; + } + } @@ -84,8 +126,8 @@ static void glamo_crtc_mode_set(struct drm_crtc *crtc, -static void glamo_pipe_set_base(struct drm_crtc *crtc, int x, int y, - struct drm_framebuffer *old_fb) +static void glamo_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) { } @@ -222,6 +264,95 @@ static void glamo_encoder_destroy(struct drm_encoder *encoder) } +static void glamo_user_framebuffer_destroy(struct drm_framebuffer *fb) +{ + struct glamo_framebuffer *glamo_fb = to_glamo_framebuffer(fb); + struct drm_device *dev = fb->dev; + + drm_framebuffer_cleanup(fb); + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(glamo_fb->obj); + mutex_unlock(&dev->struct_mutex); + + kfree(glamo_fb); +} + +static int glamo_user_framebuffer_create_handle(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned int *handle) +{ + struct glamo_framebuffer *glamo_fb = to_glamo_framebuffer(fb); + struct drm_gem_object *object = glamo_fb->obj; + + return drm_gem_handle_create(file_priv, object, handle); +} + + + +static const struct drm_framebuffer_funcs glamo_fb_funcs = { + .destroy = glamo_user_framebuffer_destroy, + .create_handle = glamo_user_framebuffer_create_handle, +}; + + +int glamo_framebuffer_create(struct drm_device *dev, + struct drm_mode_fb_cmd *mode_cmd, + struct drm_framebuffer **fb, + struct drm_gem_object *obj) +{ + struct glamo_framebuffer *glamo_fb; + int ret; + + glamo_fb = kzalloc(sizeof(*glamo_fb), GFP_KERNEL); + if (!glamo_fb) + return -ENOMEM; + + ret = drm_framebuffer_init(dev, &glamo_fb->base, &glamo_fb_funcs); + if (ret) { + DRM_ERROR("framebuffer init failed %d\n", ret); + return ret; + } + + drm_helper_mode_fill_fb_struct(&glamo_fb->base, mode_cmd); + + glamo_fb->obj = obj; + + *fb = &glamo_fb->base; + + return 0; +} + + +static struct drm_framebuffer * +glamo_user_framebuffer_create(struct drm_device *dev, + struct drm_file *filp, + struct drm_mode_fb_cmd *mode_cmd) +{ + struct drm_gem_object *obj; + struct drm_framebuffer *fb; + int ret; + + obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); + if (!obj) + return NULL; + + ret = glamo_framebuffer_create(dev, mode_cmd, &fb, obj); + if (ret) { + drm_gem_object_unreference(obj); + return NULL; + } + + return fb; +} + + +int glamo_fb_changed(struct drm_device *dev) +{ + return 0; +} + + + /* CRTC functions */ static const struct drm_crtc_funcs glamo_crtc_funcs = { .cursor_set = glamo_crtc_cursor_set, @@ -237,7 +368,7 @@ static const struct drm_crtc_helper_funcs glamo_crtc_helper_funcs = { .dpms = glamo_crtc_dpms, .mode_fixup = glamo_crtc_mode_fixup, .mode_set = glamo_crtc_mode_set, - .mode_set_base = glamo_pipe_set_base, + .mode_set_base = glamo_crtc_mode_set_base, .prepare = glamo_crtc_prepare, .commit = glamo_crtc_commit, }; @@ -276,6 +407,13 @@ static const struct drm_encoder_helper_funcs glamo_encoder_helper_funcs = { }; +/* Mode functions */ +static const struct drm_mode_config_funcs glamo_mode_funcs = { + .fb_create = glamo_user_framebuffer_create, + .fb_changed = glamofb_fbchanged +}; + + int glamo_display_init(struct drm_device *dev) { struct glamodrm_handle *gdrm; @@ -285,6 +423,13 @@ int glamo_display_init(struct drm_device *dev) gdrm = dev->dev_private; + drm_mode_config_init(dev); + + dev->mode_config.min_width = 0; + dev->mode_config.min_height = 0; + + dev->mode_config.funcs = (void *)&glamo_mode_funcs; + /* Initialise our CRTC object */ glamo_crtc = kzalloc(sizeof(struct glamo_crtc) + sizeof(struct drm_connector *), GFP_KERNEL); -- cgit v1.2.3