2012-04-26 05:53:59 -06:00
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/*
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* shmob_drm_crtc.c -- SH Mobile DRM CRTCs
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*
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* Copyright (C) 2012 Renesas Corporation
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*
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* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/backlight.h>
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#include <linux/clk.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_fb_cma_helper.h>
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#include <drm/drm_gem_cma_helper.h>
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#include <video/sh_mobile_meram.h>
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#include "shmob_drm_backlight.h"
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#include "shmob_drm_crtc.h"
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#include "shmob_drm_drv.h"
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#include "shmob_drm_kms.h"
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#include "shmob_drm_plane.h"
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#include "shmob_drm_regs.h"
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/*
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* TODO: panel support
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*/
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/* -----------------------------------------------------------------------------
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* Clock management
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*/
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2013-12-01 17:52:20 -07:00
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static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
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2012-04-26 05:53:59 -06:00
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{
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2013-12-01 17:52:20 -07:00
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int ret;
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if (sdev->clock) {
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ret = clk_prepare_enable(sdev->clock);
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if (ret < 0)
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return ret;
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}
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2012-04-26 05:53:59 -06:00
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#if 0
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if (sdev->meram_dev && sdev->meram_dev->pdev)
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pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
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#endif
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2013-12-01 17:52:20 -07:00
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return 0;
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2012-04-26 05:53:59 -06:00
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}
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static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
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{
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#if 0
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if (sdev->meram_dev && sdev->meram_dev->pdev)
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pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
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#endif
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if (sdev->clock)
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2013-10-28 16:49:22 -06:00
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clk_disable_unprepare(sdev->clock);
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2012-04-26 05:53:59 -06:00
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}
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/* -----------------------------------------------------------------------------
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* CRTC
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*/
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static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
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{
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struct drm_crtc *crtc = &scrtc->crtc;
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struct shmob_drm_device *sdev = crtc->dev->dev_private;
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const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
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const struct drm_display_mode *mode = &crtc->mode;
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u32 value;
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value = sdev->ldmt1r
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| ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
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| ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
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| ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
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| ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
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| ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
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| ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
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| ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
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lcdc_write(sdev, LDMT1R, value);
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if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
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idata->interface <= SHMOB_DRM_IFACE_SYS24) {
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/* Setup SYS bus. */
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value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
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| (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
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| (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
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| (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
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| (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
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| (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
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lcdc_write(sdev, LDMT2R, value);
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value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
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| (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
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| (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
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| (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
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lcdc_write(sdev, LDMT3R, value);
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}
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value = ((mode->hdisplay / 8) << 16) /* HDCN */
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| (mode->htotal / 8); /* HTCN */
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lcdc_write(sdev, LDHCNR, value);
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value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
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| (mode->hsync_start / 8); /* HSYNP */
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lcdc_write(sdev, LDHSYNR, value);
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value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
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| (((mode->hsync_end - mode->hsync_start) & 7) << 8)
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| (mode->hsync_start & 7);
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lcdc_write(sdev, LDHAJR, value);
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value = ((mode->vdisplay) << 16) /* VDLN */
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| mode->vtotal; /* VTLN */
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lcdc_write(sdev, LDVLNR, value);
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value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
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| mode->vsync_start; /* VSYNP */
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lcdc_write(sdev, LDVSYNR, value);
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}
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static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
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{
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struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
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u32 value;
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value = lcdc_read(sdev, LDCNT2R);
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if (start)
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lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
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else
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lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
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/* Wait until power is applied/stopped. */
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while (1) {
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value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
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if ((start && value) || (!start && !value))
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break;
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cpu_relax();
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}
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if (!start) {
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/* Stop the dot clock. */
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lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
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}
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}
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/*
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* shmob_drm_crtc_start - Configure and start the LCDC
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* @scrtc: the SH Mobile CRTC
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*
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* Configure and start the LCDC device. External devices (clocks, MERAM, panels,
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* ...) are not touched by this function.
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*/
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static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
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{
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struct drm_crtc *crtc = &scrtc->crtc;
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struct shmob_drm_device *sdev = crtc->dev->dev_private;
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const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
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const struct shmob_drm_format_info *format;
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struct drm_device *dev = sdev->ddev;
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struct drm_plane *plane;
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u32 value;
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2013-12-01 17:52:20 -07:00
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int ret;
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2012-04-26 05:53:59 -06:00
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if (scrtc->started)
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return;
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2014-04-01 16:22:40 -06:00
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format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
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2012-04-26 05:53:59 -06:00
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if (WARN_ON(format == NULL))
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return;
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/* Enable clocks before accessing the hardware. */
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2013-12-01 17:52:20 -07:00
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ret = shmob_drm_clk_on(sdev);
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if (ret < 0)
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return;
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2012-04-26 05:53:59 -06:00
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/* Reset and enable the LCDC. */
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lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
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lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
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lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
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/* Stop the LCDC first and disable all interrupts. */
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shmob_drm_crtc_start_stop(scrtc, false);
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lcdc_write(sdev, LDINTR, 0);
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/* Configure power supply, dot clocks and start them. */
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lcdc_write(sdev, LDPMR, 0);
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value = sdev->lddckr;
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if (idata->clk_div) {
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/* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
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* denominator.
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*/
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lcdc_write(sdev, LDDCKPAT1R, 0);
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lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
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if (idata->clk_div == 1)
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value |= LDDCKR_MOSEL;
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else
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value |= idata->clk_div;
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}
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lcdc_write(sdev, LDDCKR, value);
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lcdc_write(sdev, LDDCKSTPR, 0);
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lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
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/* TODO: Setup SYS panel */
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/* Setup geometry, format, frame buffer memory and operation mode. */
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shmob_drm_crtc_setup_geometry(scrtc);
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/* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
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lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
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lcdc_write(sdev, LDMLSR, scrtc->line_size);
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lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
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if (format->yuv)
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lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
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lcdc_write(sdev, LDSM1R, 0);
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/* Word and long word swap. */
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switch (format->fourcc) {
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case DRM_FORMAT_RGB565:
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case DRM_FORMAT_NV21:
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case DRM_FORMAT_NV61:
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case DRM_FORMAT_NV42:
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value = LDDDSR_LS | LDDDSR_WS;
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break;
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case DRM_FORMAT_RGB888:
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case DRM_FORMAT_NV12:
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case DRM_FORMAT_NV16:
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case DRM_FORMAT_NV24:
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value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
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break;
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case DRM_FORMAT_ARGB8888:
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default:
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value = LDDDSR_LS;
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break;
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}
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lcdc_write(sdev, LDDDSR, value);
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/* Setup planes. */
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2014-04-01 16:22:33 -06:00
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drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
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2012-04-26 05:53:59 -06:00
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if (plane->crtc == crtc)
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shmob_drm_plane_setup(plane);
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}
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/* Enable the display output. */
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lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
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shmob_drm_crtc_start_stop(scrtc, true);
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scrtc->started = true;
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}
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static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
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{
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struct drm_crtc *crtc = &scrtc->crtc;
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struct shmob_drm_device *sdev = crtc->dev->dev_private;
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if (!scrtc->started)
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return;
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/* Disable the MERAM cache. */
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if (scrtc->cache) {
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sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
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scrtc->cache = NULL;
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}
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/* Stop the LCDC. */
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shmob_drm_crtc_start_stop(scrtc, false);
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/* Disable the display output. */
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lcdc_write(sdev, LDCNT1R, 0);
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/* Stop clocks. */
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shmob_drm_clk_off(sdev);
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scrtc->started = false;
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}
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void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
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{
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shmob_drm_crtc_stop(scrtc);
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}
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void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
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{
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if (scrtc->dpms != DRM_MODE_DPMS_ON)
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return;
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shmob_drm_crtc_start(scrtc);
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}
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static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
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int x, int y)
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{
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struct drm_crtc *crtc = &scrtc->crtc;
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2014-04-01 16:22:40 -06:00
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struct drm_framebuffer *fb = crtc->primary->fb;
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2012-04-26 05:53:59 -06:00
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struct shmob_drm_device *sdev = crtc->dev->dev_private;
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struct drm_gem_cma_object *gem;
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unsigned int bpp;
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bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
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gem = drm_fb_cma_get_gem_obj(fb, 0);
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scrtc->dma[0] = gem->paddr + fb->offsets[0]
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+ y * fb->pitches[0] + x * bpp / 8;
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if (scrtc->format->yuv) {
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bpp = scrtc->format->bpp - 8;
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gem = drm_fb_cma_get_gem_obj(fb, 1);
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scrtc->dma[1] = gem->paddr + fb->offsets[1]
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+ y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
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+ x * (bpp == 16 ? 2 : 1);
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}
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if (scrtc->cache)
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sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
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scrtc->dma[0], scrtc->dma[1],
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&scrtc->dma[0], &scrtc->dma[1]);
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}
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static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
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{
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|
|
|
struct drm_crtc *crtc = &scrtc->crtc;
|
|
|
|
struct shmob_drm_device *sdev = crtc->dev->dev_private;
|
|
|
|
|
|
|
|
shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
|
|
|
|
|
|
|
|
lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
|
|
|
|
if (scrtc->format->yuv)
|
|
|
|
lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
|
|
|
|
|
|
|
|
lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
|
|
|
|
|
|
|
|
static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
|
|
|
|
{
|
|
|
|
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
|
|
|
|
|
|
|
|
if (scrtc->dpms == mode)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (mode == DRM_MODE_DPMS_ON)
|
|
|
|
shmob_drm_crtc_start(scrtc);
|
|
|
|
else
|
|
|
|
shmob_drm_crtc_stop(scrtc);
|
|
|
|
|
|
|
|
scrtc->dpms = mode;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool shmob_drm_crtc_mode_fixup(struct drm_crtc *crtc,
|
|
|
|
const struct drm_display_mode *mode,
|
|
|
|
struct drm_display_mode *adjusted_mode)
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
|
|
|
|
{
|
|
|
|
shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
|
|
|
|
struct drm_display_mode *mode,
|
|
|
|
struct drm_display_mode *adjusted_mode,
|
|
|
|
int x, int y,
|
|
|
|
struct drm_framebuffer *old_fb)
|
|
|
|
{
|
|
|
|
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
|
|
|
|
struct shmob_drm_device *sdev = crtc->dev->dev_private;
|
|
|
|
const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
|
|
|
|
const struct shmob_drm_format_info *format;
|
|
|
|
void *cache;
|
|
|
|
|
2014-04-01 16:22:40 -06:00
|
|
|
format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
|
2012-04-26 05:53:59 -06:00
|
|
|
if (format == NULL) {
|
|
|
|
dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
|
2014-04-01 16:22:40 -06:00
|
|
|
crtc->primary->fb->pixel_format);
|
2012-04-26 05:53:59 -06:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
scrtc->format = format;
|
2014-04-01 16:22:40 -06:00
|
|
|
scrtc->line_size = crtc->primary->fb->pitches[0];
|
2012-04-26 05:53:59 -06:00
|
|
|
|
|
|
|
if (sdev->meram) {
|
|
|
|
/* Enable MERAM cache if configured. We need to de-init
|
|
|
|
* configured ICBs before we can re-initialize them.
|
|
|
|
*/
|
|
|
|
if (scrtc->cache) {
|
|
|
|
sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
|
|
|
|
scrtc->cache = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
|
2014-04-01 16:22:40 -06:00
|
|
|
crtc->primary->fb->pitches[0],
|
2012-04-26 05:53:59 -06:00
|
|
|
adjusted_mode->vdisplay,
|
|
|
|
format->meram,
|
|
|
|
&scrtc->line_size);
|
|
|
|
if (!IS_ERR(cache))
|
|
|
|
scrtc->cache = cache;
|
|
|
|
}
|
|
|
|
|
|
|
|
shmob_drm_crtc_compute_base(scrtc, x, y);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
|
|
|
|
{
|
|
|
|
shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
|
|
|
|
struct drm_framebuffer *old_fb)
|
|
|
|
{
|
|
|
|
shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
|
|
|
|
.dpms = shmob_drm_crtc_dpms,
|
|
|
|
.mode_fixup = shmob_drm_crtc_mode_fixup,
|
|
|
|
.prepare = shmob_drm_crtc_mode_prepare,
|
|
|
|
.commit = shmob_drm_crtc_mode_commit,
|
|
|
|
.mode_set = shmob_drm_crtc_mode_set,
|
|
|
|
.mode_set_base = shmob_drm_crtc_mode_set_base,
|
|
|
|
};
|
|
|
|
|
|
|
|
void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
|
|
|
|
struct drm_file *file)
|
|
|
|
{
|
|
|
|
struct drm_pending_vblank_event *event;
|
|
|
|
struct drm_device *dev = scrtc->crtc.dev;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
/* Destroy the pending vertical blanking event associated with the
|
|
|
|
* pending page flip, if any, and disable vertical blanking interrupts.
|
|
|
|
*/
|
|
|
|
spin_lock_irqsave(&dev->event_lock, flags);
|
|
|
|
event = scrtc->event;
|
|
|
|
if (event && event->base.file_priv == file) {
|
|
|
|
scrtc->event = NULL;
|
|
|
|
event->base.destroy(&event->base);
|
|
|
|
drm_vblank_put(dev, 0);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
|
|
|
|
{
|
|
|
|
struct drm_pending_vblank_event *event;
|
|
|
|
struct drm_device *dev = scrtc->crtc.dev;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&dev->event_lock, flags);
|
|
|
|
event = scrtc->event;
|
|
|
|
scrtc->event = NULL;
|
2012-10-08 13:50:45 -06:00
|
|
|
if (event) {
|
|
|
|
drm_send_vblank_event(dev, 0, event);
|
|
|
|
drm_vblank_put(dev, 0);
|
|
|
|
}
|
2012-04-26 05:53:59 -06:00
|
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
|
|
|
|
struct drm_framebuffer *fb,
|
2013-07-22 19:49:58 -06:00
|
|
|
struct drm_pending_vblank_event *event,
|
|
|
|
uint32_t page_flip_flags)
|
2012-04-26 05:53:59 -06:00
|
|
|
{
|
|
|
|
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
|
|
|
|
struct drm_device *dev = scrtc->crtc.dev;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&dev->event_lock, flags);
|
|
|
|
if (scrtc->event != NULL) {
|
|
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
|
|
|
2014-04-01 16:22:40 -06:00
|
|
|
crtc->primary->fb = fb;
|
2012-04-26 05:53:59 -06:00
|
|
|
shmob_drm_crtc_update_base(scrtc);
|
|
|
|
|
|
|
|
if (event) {
|
|
|
|
event->pipe = 0;
|
2013-03-12 08:38:43 -06:00
|
|
|
drm_vblank_get(dev, 0);
|
2012-04-26 05:53:59 -06:00
|
|
|
spin_lock_irqsave(&dev->event_lock, flags);
|
|
|
|
scrtc->event = event;
|
|
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_crtc_funcs crtc_funcs = {
|
|
|
|
.destroy = drm_crtc_cleanup,
|
|
|
|
.set_config = drm_crtc_helper_set_config,
|
|
|
|
.page_flip = shmob_drm_crtc_page_flip,
|
|
|
|
};
|
|
|
|
|
|
|
|
int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
|
|
|
|
{
|
|
|
|
struct drm_crtc *crtc = &sdev->crtc.crtc;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
|
|
|
|
|
|
|
|
ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
drm_crtc_helper_add(crtc, &crtc_helper_funcs);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
|
|
* Encoder
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define to_shmob_encoder(e) \
|
|
|
|
container_of(e, struct shmob_drm_encoder, encoder)
|
|
|
|
|
|
|
|
static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
|
|
|
|
{
|
|
|
|
struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
|
|
|
|
struct shmob_drm_device *sdev = encoder->dev->dev_private;
|
|
|
|
struct shmob_drm_connector *scon = &sdev->connector;
|
|
|
|
|
|
|
|
if (senc->dpms == mode)
|
|
|
|
return;
|
|
|
|
|
|
|
|
shmob_drm_backlight_dpms(scon, mode);
|
|
|
|
|
|
|
|
senc->dpms = mode;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
|
|
|
|
const struct drm_display_mode *mode,
|
|
|
|
struct drm_display_mode *adjusted_mode)
|
|
|
|
{
|
|
|
|
struct drm_device *dev = encoder->dev;
|
|
|
|
struct shmob_drm_device *sdev = dev->dev_private;
|
|
|
|
struct drm_connector *connector = &sdev->connector.connector;
|
|
|
|
const struct drm_display_mode *panel_mode;
|
|
|
|
|
|
|
|
if (list_empty(&connector->modes)) {
|
|
|
|
dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The flat panel mode is fixed, just copy it to the adjusted mode. */
|
|
|
|
panel_mode = list_first_entry(&connector->modes,
|
|
|
|
struct drm_display_mode, head);
|
|
|
|
drm_mode_copy(adjusted_mode, panel_mode);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
|
|
|
|
{
|
|
|
|
/* No-op, everything is handled in the CRTC code. */
|
|
|
|
}
|
|
|
|
|
|
|
|
static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
|
|
|
|
struct drm_display_mode *mode,
|
|
|
|
struct drm_display_mode *adjusted_mode)
|
|
|
|
{
|
|
|
|
/* No-op, everything is handled in the CRTC code. */
|
|
|
|
}
|
|
|
|
|
|
|
|
static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
|
|
|
|
{
|
|
|
|
/* No-op, everything is handled in the CRTC code. */
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
|
|
|
|
.dpms = shmob_drm_encoder_dpms,
|
|
|
|
.mode_fixup = shmob_drm_encoder_mode_fixup,
|
|
|
|
.prepare = shmob_drm_encoder_mode_prepare,
|
|
|
|
.commit = shmob_drm_encoder_mode_commit,
|
|
|
|
.mode_set = shmob_drm_encoder_mode_set,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
|
|
|
|
{
|
|
|
|
drm_encoder_cleanup(encoder);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_encoder_funcs encoder_funcs = {
|
|
|
|
.destroy = shmob_drm_encoder_destroy,
|
|
|
|
};
|
|
|
|
|
|
|
|
int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
|
|
|
|
{
|
|
|
|
struct drm_encoder *encoder = &sdev->encoder.encoder;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
|
|
|
|
|
|
|
|
encoder->possible_crtcs = 1;
|
|
|
|
|
|
|
|
ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
|
|
|
|
DRM_MODE_ENCODER_LVDS);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
drm_encoder_helper_add(encoder, &encoder_helper_funcs);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
|
|
|
|
{
|
|
|
|
unsigned long flags;
|
|
|
|
u32 ldintr;
|
|
|
|
|
|
|
|
/* Be careful not to acknowledge any pending interrupt. */
|
|
|
|
spin_lock_irqsave(&sdev->irq_lock, flags);
|
|
|
|
ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
|
|
|
|
if (enable)
|
|
|
|
ldintr |= LDINTR_VEE;
|
|
|
|
else
|
|
|
|
ldintr &= ~LDINTR_VEE;
|
|
|
|
lcdc_write(sdev, LDINTR, ldintr);
|
|
|
|
spin_unlock_irqrestore(&sdev->irq_lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
|
|
* Connector
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define to_shmob_connector(c) \
|
|
|
|
container_of(c, struct shmob_drm_connector, connector)
|
|
|
|
|
|
|
|
static int shmob_drm_connector_get_modes(struct drm_connector *connector)
|
|
|
|
{
|
|
|
|
struct shmob_drm_device *sdev = connector->dev->dev_private;
|
|
|
|
struct drm_display_mode *mode;
|
|
|
|
|
|
|
|
mode = drm_mode_create(connector->dev);
|
|
|
|
if (mode == NULL)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
|
|
|
|
mode->clock = sdev->pdata->panel.mode.clock;
|
|
|
|
mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
|
|
|
|
mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
|
|
|
|
mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
|
|
|
|
mode->htotal = sdev->pdata->panel.mode.htotal;
|
|
|
|
mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
|
|
|
|
mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
|
|
|
|
mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
|
|
|
|
mode->vtotal = sdev->pdata->panel.mode.vtotal;
|
|
|
|
mode->flags = sdev->pdata->panel.mode.flags;
|
|
|
|
|
|
|
|
drm_mode_set_name(mode);
|
|
|
|
drm_mode_probed_add(connector, mode);
|
|
|
|
|
|
|
|
connector->display_info.width_mm = sdev->pdata->panel.width_mm;
|
|
|
|
connector->display_info.height_mm = sdev->pdata->panel.height_mm;
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct drm_encoder *
|
|
|
|
shmob_drm_connector_best_encoder(struct drm_connector *connector)
|
|
|
|
{
|
|
|
|
struct shmob_drm_connector *scon = to_shmob_connector(connector);
|
|
|
|
|
|
|
|
return scon->encoder;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_connector_helper_funcs connector_helper_funcs = {
|
|
|
|
.get_modes = shmob_drm_connector_get_modes,
|
|
|
|
.best_encoder = shmob_drm_connector_best_encoder,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void shmob_drm_connector_destroy(struct drm_connector *connector)
|
|
|
|
{
|
|
|
|
struct shmob_drm_connector *scon = to_shmob_connector(connector);
|
|
|
|
|
|
|
|
shmob_drm_backlight_exit(scon);
|
|
|
|
drm_sysfs_connector_remove(connector);
|
|
|
|
drm_connector_cleanup(connector);
|
|
|
|
}
|
|
|
|
|
|
|
|
static enum drm_connector_status
|
|
|
|
shmob_drm_connector_detect(struct drm_connector *connector, bool force)
|
|
|
|
{
|
|
|
|
return connector_status_connected;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct drm_connector_funcs connector_funcs = {
|
|
|
|
.dpms = drm_helper_connector_dpms,
|
|
|
|
.detect = shmob_drm_connector_detect,
|
|
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
|
|
.destroy = shmob_drm_connector_destroy,
|
|
|
|
};
|
|
|
|
|
|
|
|
int shmob_drm_connector_create(struct shmob_drm_device *sdev,
|
|
|
|
struct drm_encoder *encoder)
|
|
|
|
{
|
|
|
|
struct drm_connector *connector = &sdev->connector.connector;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
sdev->connector.encoder = encoder;
|
|
|
|
|
|
|
|
connector->display_info.width_mm = sdev->pdata->panel.width_mm;
|
|
|
|
connector->display_info.height_mm = sdev->pdata->panel.height_mm;
|
|
|
|
|
|
|
|
ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
|
|
|
|
DRM_MODE_CONNECTOR_LVDS);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
drm_connector_helper_add(connector, &connector_helper_funcs);
|
|
|
|
ret = drm_sysfs_connector_add(connector);
|
|
|
|
if (ret < 0)
|
|
|
|
goto err_cleanup;
|
|
|
|
|
|
|
|
ret = shmob_drm_backlight_init(&sdev->connector);
|
|
|
|
if (ret < 0)
|
|
|
|
goto err_sysfs;
|
|
|
|
|
|
|
|
ret = drm_mode_connector_attach_encoder(connector, encoder);
|
|
|
|
if (ret < 0)
|
|
|
|
goto err_backlight;
|
|
|
|
|
|
|
|
connector->encoder = encoder;
|
|
|
|
|
|
|
|
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
|
2012-10-11 19:45:53 -06:00
|
|
|
drm_object_property_set_value(&connector->base,
|
2012-04-26 05:53:59 -06:00
|
|
|
sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_backlight:
|
|
|
|
shmob_drm_backlight_exit(&sdev->connector);
|
|
|
|
err_sysfs:
|
|
|
|
drm_sysfs_connector_remove(connector);
|
|
|
|
err_cleanup:
|
|
|
|
drm_connector_cleanup(connector);
|
|
|
|
return ret;
|
|
|
|
}
|