diff options
| -rw-r--r-- | drivers/staging/imx-drm/Makefile | 2 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/TODO | 1 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/imx-drm-core.c | 5 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/imx-drm.h | 2 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipu-v3/ipu-common.c | 2 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipuv3-crtc.c | 198 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipuv3-plane.c | 375 | ||||
| -rw-r--r-- | drivers/staging/imx-drm/ipuv3-plane.h | 55 |
8 files changed, 484 insertions, 156 deletions
diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile index bfaf693..2c3a9e1 100644 --- a/drivers/staging/imx-drm/Makefile +++ b/drivers/staging/imx-drm/Makefile @@ -8,4 +8,4 @@ obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/ -obj-$(CONFIG_DRM_IMX_IPUV3) += ipuv3-crtc.o +obj-$(CONFIG_DRM_IMX_IPUV3) += ipuv3-crtc.o ipuv3-plane.o diff --git a/drivers/staging/imx-drm/TODO b/drivers/staging/imx-drm/TODO index 9cfa2a7..6a9da94 100644 --- a/drivers/staging/imx-drm/TODO +++ b/drivers/staging/imx-drm/TODO @@ -9,7 +9,6 @@ TODO: Missing features (not necessarily for moving out of staging): -- Add KMS plane support for CRTC driver - Add i.MX6 HDMI support - Add support for IC (Image converter) - Add support for CSI (CMOS Sensor interface) diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 3f68337..d306f3a 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -68,6 +68,11 @@ struct imx_drm_connector { struct module *owner; }; +int imx_drm_crtc_id(struct imx_drm_crtc *crtc) +{ + return crtc->pipe; +} + static void imx_drm_driver_lastclose(struct drm_device *drm) { struct imx_drm_device *imxdrm = drm->dev_private; diff --git a/drivers/staging/imx-drm/imx-drm.h b/drivers/staging/imx-drm/imx-drm.h index f2aac91..ae90c9c 100644 --- a/drivers/staging/imx-drm/imx-drm.h +++ b/drivers/staging/imx-drm/imx-drm.h @@ -14,6 +14,8 @@ struct drm_fbdev_cma; struct drm_framebuffer; struct platform_device; +int imx_drm_crtc_id(struct imx_drm_crtc *crtc); + struct imx_drm_crtc_helper_funcs { int (*enable_vblank)(struct drm_crtc *crtc); void (*disable_vblank)(struct drm_crtc *crtc); diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c index 5ca42f0..a0e7fc2 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c @@ -981,7 +981,7 @@ static const struct ipu_platform_reg client_reg[] = { .dc = 5, .dp = IPU_DP_FLOW_SYNC_BG, .dma[0] = IPUV3_CHANNEL_MEM_BG_SYNC, - .dma[1] = -EINVAL, + .dma[1] = IPUV3_CHANNEL_MEM_FG_SYNC, }, .name = "imx-ipuv3-crtc", }, { diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c index ae50dd4..f1112df 100644 --- a/drivers/staging/imx-drm/ipuv3-crtc.c +++ b/drivers/staging/imx-drm/ipuv3-crtc.c @@ -25,11 +25,13 @@ #include <drm/drm_crtc_helper.h> #include <linux/fb.h> #include <linux/clk.h> +#include <linux/errno.h> #include <drm/drm_gem_cma_helper.h> #include <drm/drm_fb_cma_helper.h> #include "ipu-v3/imx-ipu-v3.h" #include "imx-drm.h" +#include "ipuv3-plane.h" #define DRIVER_DESC "i.MX IPUv3 Graphics" @@ -37,10 +39,11 @@ struct ipu_crtc { struct device *dev; struct drm_crtc base; struct imx_drm_crtc *imx_crtc; - struct ipuv3_channel *ipu_ch; + + /* plane[0] is the full plane, plane[1] is the partial plane */ + struct ipu_plane *plane[2]; + struct ipu_dc *dc; - struct ipu_dp *dp; - struct dmfc_channel *dmfc; struct ipu_di *di; int enabled; struct drm_pending_vblank_event *page_flip_event; @@ -54,35 +57,14 @@ struct ipu_crtc { #define to_ipu_crtc(x) container_of(x, struct ipu_crtc, base) -static int calc_vref(struct drm_display_mode *mode) -{ - unsigned long htotal, vtotal; - - htotal = mode->htotal; - vtotal = mode->vtotal; - - if (!htotal || !vtotal) - return 60; - - return mode->clock * 1000 / vtotal / htotal; -} - -static int calc_bandwidth(struct drm_display_mode *mode, unsigned int vref) -{ - return mode->hdisplay * mode->vdisplay * vref; -} - static void ipu_fb_enable(struct ipu_crtc *ipu_crtc) { if (ipu_crtc->enabled) return; ipu_di_enable(ipu_crtc->di); - ipu_dmfc_enable_channel(ipu_crtc->dmfc); - ipu_idmac_enable_channel(ipu_crtc->ipu_ch); ipu_dc_enable_channel(ipu_crtc->dc); - if (ipu_crtc->dp) - ipu_dp_enable_channel(ipu_crtc->dp); + ipu_plane_enable(ipu_crtc->plane[0]); ipu_crtc->enabled = 1; } @@ -92,12 +74,8 @@ static void ipu_fb_disable(struct ipu_crtc *ipu_crtc) if (!ipu_crtc->enabled) return; - if (ipu_crtc->dp) - ipu_dp_disable_channel(ipu_crtc->dp); + ipu_plane_disable(ipu_crtc->plane[0]); ipu_dc_disable_channel(ipu_crtc->dc); - ipu_idmac_wait_busy(ipu_crtc->ipu_ch, 50); - ipu_idmac_disable_channel(ipu_crtc->ipu_ch); - ipu_dmfc_disable_channel(ipu_crtc->dmfc); ipu_di_disable(ipu_crtc->di); ipu_crtc->enabled = 0; @@ -153,33 +131,6 @@ static const struct drm_crtc_funcs ipu_crtc_funcs = { .page_flip = ipu_page_flip, }; -static int ipu_drm_set_base(struct drm_crtc *crtc, int x, int y) -{ - struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); - struct drm_gem_cma_object *cma_obj; - struct drm_framebuffer *fb = crtc->fb; - unsigned long phys; - - cma_obj = drm_fb_cma_get_gem_obj(fb, 0); - if (!cma_obj) { - DRM_LOG_KMS("entry is null.\n"); - return -EFAULT; - } - - phys = cma_obj->paddr; - phys += x * (fb->bits_per_pixel >> 3); - phys += y * fb->pitches[0]; - - dev_dbg(ipu_crtc->dev, "%s: phys: 0x%lx\n", __func__, phys); - dev_dbg(ipu_crtc->dev, "%s: xy: %dx%d\n", __func__, x, y); - - ipu_cpmem_set_stride(ipu_get_cpmem(ipu_crtc->ipu_ch), fb->pitches[0]); - ipu_cpmem_set_buffer(ipu_get_cpmem(ipu_crtc->ipu_ch), - 0, phys); - - return 0; -} - static int ipu_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *orig_mode, struct drm_display_mode *mode, @@ -187,45 +138,15 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc, struct drm_framebuffer *old_fb) { struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); - struct drm_framebuffer *fb = ipu_crtc->base.fb; int ret; struct ipu_di_signal_cfg sig_cfg = {}; u32 out_pixel_fmt; - struct ipu_ch_param __iomem *cpmem = ipu_get_cpmem(ipu_crtc->ipu_ch); - int bpp; - u32 v4l2_fmt; dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__, mode->hdisplay); dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__, mode->vdisplay); - ipu_ch_param_zero(cpmem); - - switch (fb->pixel_format) { - case DRM_FORMAT_XRGB8888: - case DRM_FORMAT_ARGB8888: - v4l2_fmt = V4L2_PIX_FMT_RGB32; - bpp = 32; - break; - case DRM_FORMAT_RGB565: - v4l2_fmt = V4L2_PIX_FMT_RGB565; - bpp = 16; - break; - case DRM_FORMAT_RGB888: - v4l2_fmt = V4L2_PIX_FMT_RGB24; - bpp = 24; - break; - case DRM_FORMAT_BGR888: - v4l2_fmt = V4L2_PIX_FMT_BGR24; - bpp = 24; - break; - default: - dev_err(ipu_crtc->dev, "unsupported pixel format 0x%08x\n", - fb->pixel_format); - return -EINVAL; - } - out_pixel_fmt = ipu_crtc->interface_pix_fmt; if (mode->flags & DRM_MODE_FLAG_INTERLACE) @@ -255,18 +176,6 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc, sig_cfg.hsync_pin = ipu_crtc->di_hsync_pin; sig_cfg.vsync_pin = ipu_crtc->di_vsync_pin; - if (ipu_crtc->dp) { - ret = ipu_dp_setup_channel(ipu_crtc->dp, IPUV3_COLORSPACE_RGB, - IPUV3_COLORSPACE_RGB); - if (ret) { - dev_err(ipu_crtc->dev, - "initializing display processor failed with %d\n", - ret); - return ret; - } - ipu_dp_set_global_alpha(ipu_crtc->dp, 1, 0, 1); - } - ret = ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di, sig_cfg.interlaced, out_pixel_fmt, mode->hdisplay); if (ret) { @@ -283,30 +192,9 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc, return ret; } - ipu_cpmem_set_resolution(cpmem, mode->hdisplay, mode->vdisplay); - ipu_cpmem_set_fmt(cpmem, v4l2_fmt); - ipu_cpmem_set_high_priority(ipu_crtc->ipu_ch); - - ret = ipu_dmfc_init_channel(ipu_crtc->dmfc, mode->hdisplay); - if (ret) { - dev_err(ipu_crtc->dev, - "initializing dmfc channel failed with %d\n", - ret); - return ret; - } - - ret = ipu_dmfc_alloc_bandwidth(ipu_crtc->dmfc, - calc_bandwidth(mode, calc_vref(mode)), 64); - if (ret) { - dev_err(ipu_crtc->dev, - "allocating dmfc bandwidth failed with %d\n", - ret); - return ret; - } - - ipu_drm_set_base(crtc, x, y); - - return 0; + return ipu_plane_mode_set(ipu_crtc->plane[0], crtc, mode, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + x, y, mode->hdisplay, mode->vdisplay); } static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc) @@ -330,7 +218,7 @@ static irqreturn_t ipu_irq_handler(int irq, void *dev_id) if (ipu_crtc->newfb) { ipu_crtc->newfb = NULL; - ipu_drm_set_base(&ipu_crtc->base, 0, 0); + ipu_plane_set_base(ipu_crtc->plane[0], ipu_crtc->base.fb, 0, 0); ipu_crtc_handle_pageflip(ipu_crtc); } @@ -413,12 +301,8 @@ static const struct imx_drm_crtc_helper_funcs ipu_crtc_helper_funcs = { static void ipu_put_resources(struct ipu_crtc *ipu_crtc) { - if (!IS_ERR_OR_NULL(ipu_crtc->ipu_ch)) - ipu_idmac_put(ipu_crtc->ipu_ch); - if (!IS_ERR_OR_NULL(ipu_crtc->dmfc)) - ipu_dmfc_put(ipu_crtc->dmfc); - if (!IS_ERR_OR_NULL(ipu_crtc->dp)) - ipu_dp_put(ipu_crtc->dp); + if (!IS_ERR_OR_NULL(ipu_crtc->dc)) + ipu_dc_put(ipu_crtc->dc); if (!IS_ERR_OR_NULL(ipu_crtc->di)) ipu_di_put(ipu_crtc->di); } @@ -429,32 +313,12 @@ static int ipu_get_resources(struct ipu_crtc *ipu_crtc, struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); int ret; - ipu_crtc->ipu_ch = ipu_idmac_get(ipu, pdata->dma[0]); - if (IS_ERR(ipu_crtc->ipu_ch)) { - ret = PTR_ERR(ipu_crtc->ipu_ch); - goto err_out; - } - ipu_crtc->dc = ipu_dc_get(ipu, pdata->dc); if (IS_ERR(ipu_crtc->dc)) { ret = PTR_ERR(ipu_crtc->dc); goto err_out; } - ipu_crtc->dmfc = ipu_dmfc_get(ipu, pdata->dma[0]); - if (IS_ERR(ipu_crtc->dmfc)) { - ret = PTR_ERR(ipu_crtc->dmfc); - goto err_out; - } - - if (pdata->dp >= 0) { - ipu_crtc->dp = ipu_dp_get(ipu, pdata->dp); - if (IS_ERR(ipu_crtc->dp)) { - ret = PTR_ERR(ipu_crtc->dp); - goto err_out; - } - } - ipu_crtc->di = ipu_di_get(ipu, pdata->di); if (IS_ERR(ipu_crtc->di)) { ret = PTR_ERR(ipu_crtc->di); @@ -472,7 +336,9 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc, struct ipu_client_platformdata *pdata) { struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); + int dp = -EINVAL; int ret; + int id; ret = ipu_get_resources(ipu_crtc, pdata); if (ret) { @@ -490,17 +356,42 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc, goto err_put_resources; } - ipu_crtc->irq = ipu_idmac_channel_irq(ipu, ipu_crtc->ipu_ch, - IPU_IRQ_EOF); + if (pdata->dp >= 0) + dp = IPU_DP_FLOW_SYNC_BG; + id = imx_drm_crtc_id(ipu_crtc->imx_crtc); + ipu_crtc->plane[0] = ipu_plane_init(ipu_crtc->base.dev, ipu, + pdata->dma[0], dp, BIT(id), true); + ret = ipu_plane_get_resources(ipu_crtc->plane[0]); + if (ret) { + dev_err(ipu_crtc->dev, "getting plane 0 resources failed with %d.\n", + ret); + goto err_remove_crtc; + } + + /* If this crtc is using the DP, add an overlay plane */ + if (pdata->dp >= 0 && pdata->dma[1] > 0) { + ipu_crtc->plane[1] = ipu_plane_init(ipu_crtc->base.dev, ipu, + pdata->dma[1], + IPU_DP_FLOW_SYNC_FG, + BIT(id), false); + if (IS_ERR(ipu_crtc->plane[1])) + ipu_crtc->plane[1] = NULL; + } + + ipu_crtc->irq = ipu_plane_irq(ipu_crtc->plane[0]); ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, 0, "imx_drm", ipu_crtc); if (ret < 0) { dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret); - goto err_put_resources; + goto err_put_plane_res; } return 0; +err_put_plane_res: + ipu_plane_put_resources(ipu_crtc->plane[0]); +err_remove_crtc: + imx_drm_remove_crtc(ipu_crtc->imx_crtc); err_put_resources: ipu_put_resources(ipu_crtc); @@ -539,6 +430,7 @@ static int ipu_drm_remove(struct platform_device *pdev) imx_drm_remove_crtc(ipu_crtc->imx_crtc); + ipu_plane_put_resources(ipu_crtc->plane[0]); ipu_put_resources(ipu_crtc); return 0; diff --git a/drivers/staging/imx-drm/ipuv3-plane.c b/drivers/staging/imx-drm/ipuv3-plane.c new file mode 100644 index 0000000..d97454a --- /dev/null +++ b/drivers/staging/imx-drm/ipuv3-plane.c @@ -0,0 +1,375 @@ +/* + * i.MX IPUv3 DP Overlay Planes + * + * Copyright (C) 2013 Philipp Zabel, Pengutronix + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * 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 <drm/drmP.h> +#include <drm/drm_fb_cma_helper.h> +#include <drm/drm_gem_cma_helper.h> + +#include "ipu-v3/imx-ipu-v3.h" +#include "ipuv3-plane.h" + +#define to_ipu_plane(x) container_of(x, struct ipu_plane, base) + +static const uint32_t ipu_plane_formats[] = { + DRM_FORMAT_XRGB1555, + DRM_FORMAT_XBGR1555, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ABGR8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_YUYV, + DRM_FORMAT_YVYU, + DRM_FORMAT_YUV420, + DRM_FORMAT_YVU420, +}; + +int ipu_plane_irq(struct ipu_plane *ipu_plane) +{ + return ipu_idmac_channel_irq(ipu_plane->ipu, ipu_plane->ipu_ch, + IPU_IRQ_EOF); +} + +static int calc_vref(struct drm_display_mode *mode) +{ + unsigned long htotal, vtotal; + + htotal = mode->htotal; + vtotal = mode->vtotal; + + if (!htotal || !vtotal) + return 60; + + return DIV_ROUND_UP(mode->clock * 1000, vtotal * htotal); +} + +static inline int calc_bandwidth(int width, int height, unsigned int vref) +{ + return width * height * vref; +} + +int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb, + int x, int y) +{ + struct ipu_ch_param __iomem *cpmem; + struct drm_gem_cma_object *cma_obj; + + cma_obj = drm_fb_cma_get_gem_obj(fb, 0); + if (!cma_obj) { + DRM_LOG_KMS("entry is null.\n"); + return -EFAULT; + } + + dev_dbg(ipu_plane->base.dev->dev, "phys = 0x%x, x = %d, y = %d", + cma_obj->paddr, x, y); + + cpmem = ipu_get_cpmem(ipu_plane->ipu_ch); + ipu_cpmem_set_stride(cpmem, fb->pitches[0]); + ipu_cpmem_set_buffer(cpmem, 0, cma_obj->paddr + fb->offsets[0] + + fb->pitches[0] * y + x); + + return 0; +} + +int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_framebuffer *fb, int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + struct ipu_ch_param __iomem *cpmem; + struct device *dev = ipu_plane->base.dev->dev; + int ret; + + /* no scaling */ + if (src_w != crtc_w || src_h != crtc_h) + return -EINVAL; + + /* clip to crtc bounds */ + if (crtc_x < 0) { + if (-crtc_x > crtc_w) + return -EINVAL; + src_x += -crtc_x; + src_w -= -crtc_x; + crtc_w -= -crtc_x; + crtc_x = 0; + } + if (crtc_y < 0) { + if (-crtc_y > crtc_h) + return -EINVAL; + src_y += -crtc_y; + src_h -= -crtc_y; + crtc_h -= -crtc_y; + crtc_y = 0; + } + if (crtc_x + crtc_w > mode->hdisplay) { + if (crtc_x > mode->hdisplay) + return -EINVAL; + crtc_w = mode->hdisplay - crtc_x; + src_w = crtc_w; + } + if (crtc_y + crtc_h > mode->vdisplay) { + if (crtc_y > mode->vdisplay) + return -EINVAL; + crtc_h = mode->vdisplay - crtc_y; + src_h = crtc_h; + } + /* full plane minimum width is 13 pixels */ + if (crtc_w < 13 && (ipu_plane->dp_flow != IPU_DP_FLOW_SYNC_FG)) + return -EINVAL; + if (crtc_h < 2) + return -EINVAL; + + switch (ipu_plane->dp_flow) { + case IPU_DP_FLOW_SYNC_BG: + ret = ipu_dp_setup_channel(ipu_plane->dp, + IPUV3_COLORSPACE_RGB, + IPUV3_COLORSPACE_RGB); + if (ret) { + dev_err(dev, + "initializing display processor failed with %d\n", + ret); + return ret; + } + ipu_dp_set_global_alpha(ipu_plane->dp, 1, 0, 1); + break; + case IPU_DP_FLOW_SYNC_FG: + ipu_dp_setup_channel(ipu_plane->dp, + ipu_drm_fourcc_to_colorspace(fb->pixel_format), + IPUV3_COLORSPACE_UNKNOWN); + ipu_dp_set_window_pos(ipu_plane->dp, crtc_x, crtc_y); + break; + } + + ret = ipu_dmfc_init_channel(ipu_plane->dmfc, crtc_w); + if (ret) { + dev_err(dev, "initializing dmfc channel failed with %d\n", ret); + return ret; + } + + ret = ipu_dmfc_alloc_bandwidth(ipu_plane->dmfc, + calc_bandwidth(crtc_w, crtc_h, + calc_vref(mode)), 64); + if (ret) { + dev_err(dev, "allocating dmfc bandwidth failed with %d\n", ret); + return ret; + } + + cpmem = ipu_get_cpmem(ipu_plane->ipu_ch); + ipu_ch_param_zero(cpmem); + ipu_cpmem_set_resolution(cpmem, src_w, src_h); + ret = ipu_cpmem_set_fmt(cpmem, fb->pixel_format); + if (ret < 0) { + dev_err(dev, "unsupported pixel format 0x%08x\n", + fb->pixel_format); + return ret; + } + ipu_cpmem_set_high_priority(ipu_plane->ipu_ch); + + ret = ipu_plane_set_base(ipu_plane, fb, src_x, src_y); + if (ret < 0) + return ret; + + return 0; +} + +void ipu_plane_put_resources(struct ipu_plane *ipu_plane) +{ + if (!IS_ERR_OR_NULL(ipu_plane->dp)) + ipu_dp_put(ipu_plane->dp); + if (!IS_ERR_OR_NULL(ipu_plane->dmfc)) + ipu_dmfc_put(ipu_plane->dmfc); + if (!IS_ERR_OR_NULL(ipu_plane->ipu_ch)) + ipu_idmac_put(ipu_plane->ipu_ch); +} + +int ipu_plane_get_resources(struct ipu_plane *ipu_plane) +{ + int ret; + + ipu_plane->ipu_ch = ipu_idmac_get(ipu_plane->ipu, ipu_plane->dma); + if (IS_ERR(ipu_plane->ipu_ch)) { + ret = PTR_ERR(ipu_plane->ipu_ch); + DRM_ERROR("failed to get idmac channel: %d\n", ret); + return ret; + } + + ipu_plane->dmfc = ipu_dmfc_get(ipu_plane->ipu, ipu_plane->dma); + if (IS_ERR(ipu_plane->dmfc)) { + ret = PTR_ERR(ipu_plane->dmfc); + DRM_ERROR("failed to get dmfc: ret %d\n", ret); + goto err_out; + } + + if (ipu_plane->dp_flow >= 0) { + ipu_plane->dp = ipu_dp_get(ipu_plane->ipu, ipu_plane->dp_flow); + if (IS_ERR(ipu_plane->dp)) { + ret = PTR_ERR(ipu_plane->dp); + DRM_ERROR("failed to get dp flow: %d\n", ret); + goto err_out; + } + } + + return 0; +err_out: + ipu_plane_put_resources(ipu_plane); + + return ret; +} + +void ipu_plane_enable(struct ipu_plane *ipu_plane) +{ + ipu_dmfc_enable_channel(ipu_plane->dmfc); + ipu_idmac_enable_channel(ipu_plane->ipu_ch); + if (ipu_plane->dp) + ipu_dp_enable_channel(ipu_plane->dp); + + ipu_plane->enabled = true; +} + +void ipu_plane_disable(struct ipu_plane *ipu_plane) +{ + ipu_plane->enabled = false; + + ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50); + + if (ipu_plane->dp) + ipu_dp_disable_channel(ipu_plane->dp); + ipu_idmac_disable_channel(ipu_plane->ipu_ch); + ipu_dmfc_disable_channel(ipu_plane->dmfc); +} + +static void ipu_plane_dpms(struct ipu_plane *ipu_plane, int mode) +{ + bool enable; + + DRM_DEBUG_KMS("mode = %d", mode); + + enable = (mode == DRM_MODE_DPMS_ON); + + if (enable == ipu_plane->enabled) + return; + + if (enable) { + ipu_plane_enable(ipu_plane); + } else { + ipu_plane_disable(ipu_plane); + + ipu_idmac_put(ipu_plane->ipu_ch); + ipu_dmfc_put(ipu_plane->dmfc); + ipu_dp_put(ipu_plane->dp); + } +} + +/* + * drm_plane API + */ + +static int ipu_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, + struct drm_framebuffer *fb, int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + struct ipu_plane *ipu_plane = to_ipu_plane(plane); + int ret = 0; + + DRM_DEBUG_KMS("plane - %p\n", plane); + + if (!ipu_plane->enabled) + ret = ipu_plane_get_resources(ipu_plane); + if (ret < 0) + return ret; + + ret = ipu_plane_mode_set(ipu_plane, crtc, &crtc->hwmode, fb, + crtc_x, crtc_y, crtc_w, crtc_h, + src_x >> 16, src_y >> 16, src_w >> 16, src_h >> 16); + if (ret < 0) { + ipu_plane_put_resources(ipu_plane); + return ret; + } + + if (crtc != plane->crtc) + dev_info(plane->dev->dev, "crtc change: %p -> %p\n", + plane->crtc, crtc); + plane->crtc = crtc; + + ipu_plane_dpms(ipu_plane, DRM_MODE_DPMS_ON); + + return 0; +} + +static int ipu_disable_plane(struct drm_plane *plane) +{ + struct ipu_plane *ipu_plane = to_ipu_plane(plane); + + DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); + + ipu_plane_dpms(ipu_plane, DRM_MODE_DPMS_OFF); + + ipu_plane_put_resources(ipu_plane); + + return 0; +} + +static void ipu_plane_destroy(struct drm_plane *plane) +{ + struct ipu_plane *ipu_plane = to_ipu_plane(plane); + + DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); + + ipu_disable_plane(plane); + drm_plane_cleanup(plane); + kfree(ipu_plane); +} + +static struct drm_plane_funcs ipu_plane_funcs = { + .update_plane = ipu_update_plane, + .disable_plane = ipu_disable_plane, + .destroy = ipu_plane_destroy, +}; + +struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, + int dma, int dp, unsigned int possible_crtcs, + bool priv) +{ + struct ipu_plane *ipu_plane; + int ret; + + DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n", + dma, dp, possible_crtcs); + + ipu_plane = kzalloc(sizeof(*ipu_plane), GFP_KERNEL); + if (!ipu_plane) { + DRM_ERROR("failed to allocate plane\n"); + return ERR_PTR(-ENOMEM); + } + + ipu_plane->ipu = ipu; + ipu_plane->dma = dma; + ipu_plane->dp_flow = dp; + + ret = drm_plane_init(dev, &ipu_plane->base, possible_crtcs, + &ipu_plane_funcs, ipu_plane_formats, + ARRAY_SIZE(ipu_plane_formats), + priv); + if (ret) { + DRM_ERROR("failed to initialize plane\n"); + kfree(ipu_plane); + return ERR_PTR(ret); + } + + return ipu_plane; +} diff --git a/drivers/staging/imx-drm/ipuv3-plane.h b/drivers/staging/imx-drm/ipuv3-plane.h new file mode 100644 index 0000000..c0aae5b --- /dev/null +++ b/drivers/staging/imx-drm/ipuv3-plane.h @@ -0,0 +1,55 @@ +#ifndef __IPUV3_PLANE_H__ +#define __IPUV3_PLANE_H__ + +#include <drm/drm_crtc.h> /* drm_plane */ + +struct drm_plane; +struct drm_device; +struct ipu_soc; +struct drm_crtc; +struct drm_framebuffer; + +struct ipuv3_channel; +struct dmfc_channel; +struct ipu_dp; + +struct ipu_plane { + struct drm_plane base; + + struct ipu_soc *ipu; + struct ipuv3_channel *ipu_ch; + struct dmfc_channel *dmfc; + struct ipu_dp *dp; + + int dma; + int dp_flow; + + int x; + int y; + + bool enabled; +}; + +struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, + int dma, int dp, unsigned int possible_crtcs, + bool priv); + +/* Init IDMAC, DMFC, DP */ +int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_framebuffer *fb, int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, uint32_t src_w, + uint32_t src_h); + +void ipu_plane_enable(struct ipu_plane *plane); +void ipu_plane_disable(struct ipu_plane *plane); +int ipu_plane_set_base(struct ipu_plane *plane, struct drm_framebuffer *fb, + int x, int y); + +int ipu_plane_get_resources(struct ipu_plane *plane); +void ipu_plane_put_resources(struct ipu_plane *plane); + +int ipu_plane_irq(struct ipu_plane *plane); + +#endif |