--- /dev/null
+/*
+ * Copyright © 2010-2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Jim Liu <jim.liu@intel.com>
+ * Jackie Li<yaodong.li@intel.com>
+ */
+
+#include "mdfld_dsi_dbi_dpu.h"
+#include "mdfld_dsi_dbi.h"
+
+/*
+ * NOTE: all mdlfd_x_damage funcs should be called by holding dpu_update_lock
+ */
+
+static int mdfld_cursor_damage(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane,
+ struct psb_drm_dpu_rect *damaged_rect)
+{
+ int x, y;
+ int new_x, new_y;
+ struct psb_drm_dpu_rect *rect;
+ struct psb_drm_dpu_rect *pipe_rect;
+ int cursor_size;
+ struct mdfld_cursor_info *cursor;
+ mdfld_plane_t fb_plane;
+
+ if (plane == MDFLD_CURSORA) {
+ cursor = &dpu_info->cursors[0];
+ x = dpu_info->cursors[0].x;
+ y = dpu_info->cursors[0].y;
+ cursor_size = dpu_info->cursors[0].size;
+ pipe_rect = &dpu_info->damage_pipea;
+ fb_plane = MDFLD_PLANEA;
+ } else {
+ cursor = &dpu_info->cursors[1];
+ x = dpu_info->cursors[1].x;
+ y = dpu_info->cursors[1].y;
+ cursor_size = dpu_info->cursors[1].size;
+ pipe_rect = &dpu_info->damage_pipec;
+ fb_plane = MDFLD_PLANEC;
+ }
+ new_x = damaged_rect->x;
+ new_y = damaged_rect->y;
+
+ if (x == new_x && y == new_y)
+ return 0;
+
+ rect = &dpu_info->damaged_rects[plane];
+ /* Move to right */
+ if (new_x >= x) {
+ if (new_y > y) {
+ rect->x = x;
+ rect->y = y;
+ rect->width = (new_x + cursor_size) - x;
+ rect->height = (new_y + cursor_size) - y;
+ goto cursor_out;
+ } else {
+ rect->x = x;
+ rect->y = new_y;
+ rect->width = (new_x + cursor_size) - x;
+ rect->height = (y - new_y);
+ goto cursor_out;
+ }
+ } else {
+ if (new_y > y) {
+ rect->x = new_x;
+ rect->y = y;
+ rect->width = (x + cursor_size) - new_x;
+ rect->height = new_y - y;
+ goto cursor_out;
+ } else {
+ rect->x = new_x;
+ rect->y = new_y;
+ rect->width = (x + cursor_size) - new_x;
+ rect->height = (y + cursor_size) - new_y;
+ }
+ }
+cursor_out:
+ if (new_x < 0)
+ cursor->x = 0;
+ else if (new_x > 864)
+ cursor->x = 864;
+ else
+ cursor->x = new_x;
+
+ if (new_y < 0)
+ cursor->y = 0;
+ else if (new_y > 480)
+ cursor->y = 480;
+ else
+ cursor->y = new_y;
+
+ /*
+ * FIXME: this is a workaround for cursor plane update,
+ * remove it later!
+ */
+ rect->x = 0;
+ rect->y = 0;
+ rect->width = 864;
+ rect->height = 480;
+
+ mdfld_check_boundary(dpu_info, rect);
+ mdfld_dpu_region_extent(pipe_rect, rect);
+
+ /* Update pending status of dpu_info */
+ dpu_info->pending |= (1 << plane);
+ /* Update fb panel as well */
+ dpu_info->pending |= (1 << fb_plane);
+ return 0;
+}
+
+static int mdfld_fb_damage(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane,
+ struct psb_drm_dpu_rect *damaged_rect)
+{
+ struct psb_drm_dpu_rect *rect;
+
+ if (plane == MDFLD_PLANEA)
+ rect = &dpu_info->damage_pipea;
+ else
+ rect = &dpu_info->damage_pipec;
+
+ mdfld_check_boundary(dpu_info, damaged_rect);
+
+ /* Add fb damage area to this pipe */
+ mdfld_dpu_region_extent(rect, damaged_rect);
+
+ /* Update pending status of dpu_info */
+ dpu_info->pending |= (1 << plane);
+ return 0;
+}
+
+/* Do nothing here, right now */
+static int mdfld_overlay_damage(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane,
+ struct psb_drm_dpu_rect *damaged_rect)
+{
+ return 0;
+}
+
+int mdfld_dbi_dpu_report_damage(struct drm_device *dev,
+ mdfld_plane_t plane,
+ struct psb_drm_dpu_rect *rect)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+ int ret = 0;
+
+ /* DPU not in use, no damage reporting needed */
+ if (dpu_info == NULL)
+ return 0;
+
+ spin_lock(&dpu_info->dpu_update_lock);
+
+ switch (plane) {
+ case MDFLD_PLANEA:
+ case MDFLD_PLANEC:
+ mdfld_fb_damage(dpu_info, plane, rect);
+ break;
+ case MDFLD_CURSORA:
+ case MDFLD_CURSORC:
+ mdfld_cursor_damage(dpu_info, plane, rect);
+ break;
+ case MDFLD_OVERLAYA:
+ case MDFLD_OVERLAYC:
+ mdfld_overlay_damage(dpu_info, plane, rect);
+ break;
+ default:
+ DRM_ERROR("Invalid plane type %d\n", plane);
+ ret = -EINVAL;
+ }
+ spin_unlock(&dpu_info->dpu_update_lock);
+ return ret;
+}
+
+int mdfld_dbi_dpu_report_fullscreen_damage(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv;
+ struct mdfld_dbi_dpu_info *dpu_info;
+ struct mdfld_dsi_config *dsi_config;
+ struct psb_drm_dpu_rect rect;
+ int i;
+
+ if (!dev) {
+ DRM_ERROR("Invalid parameter\n");
+ return -EINVAL;
+ }
+
+ dev_priv = dev->dev_private;
+ dpu_info = dev_priv->dbi_dpu_info;
+
+ /* This is fine - we may be in non DPU mode */
+ if (!dpu_info)
+ return -EINVAL;
+
+ for (i = 0; i < dpu_info->dbi_output_num; i++) {
+ dsi_config = dev_priv->dsi_configs[i];
+ if (dsi_config) {
+ rect.x = rect.y = 0;
+ rect.width = dsi_config->fixed_mode->hdisplay;
+ rect.height = dsi_config->fixed_mode->vdisplay;
+ mdfld_dbi_dpu_report_damage(dev,
+ i ? (MDFLD_PLANEC) : (MDFLD_PLANEA),
+ &rect);
+ }
+ }
+ /* Exit DSR state */
+ mdfld_dpu_exit_dsr(dev);
+ return 0;
+}
+
+int mdfld_dsi_dbi_dsr_off(struct drm_device *dev,
+ struct psb_drm_dpu_rect *rect)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+ mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEA, rect);
+
+ /* If dual display mode */
+ if (dpu_info->dbi_output_num == 2)
+ mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEC, rect);
+
+ /* Force dsi to exit DSR mode */
+ mdfld_dpu_exit_dsr(dev);
+ return 0;
+}
+
+static void mdfld_dpu_cursor_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane)
+{
+ struct drm_device *dev = dpu_info->dev;
+ u32 curpos_reg = CURAPOS;
+ u32 curbase_reg = CURABASE;
+ u32 curcntr_reg = CURACNTR;
+ struct mdfld_cursor_info *cursor = &dpu_info->cursors[0];
+
+ if (plane == MDFLD_CURSORC) {
+ curpos_reg = CURCPOS;
+ curbase_reg = CURCBASE;
+ curcntr_reg = CURCCNTR;
+ cursor = &dpu_info->cursors[1];
+ }
+
+ REG_WRITE(curcntr_reg, REG_READ(curcntr_reg));
+ REG_WRITE(curpos_reg,
+ (((cursor->x & CURSOR_POS_MASK) << CURSOR_X_SHIFT) |
+ ((cursor->y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT)));
+ REG_WRITE(curbase_reg, REG_READ(curbase_reg));
+}
+
+static void mdfld_dpu_fb_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane)
+{
+ u32 pipesrc_reg = PIPEASRC;
+ u32 dspsize_reg = DSPASIZE;
+ u32 dspoff_reg = DSPALINOFF;
+ u32 dspsurf_reg = DSPASURF;
+ u32 dspstride_reg = DSPASTRIDE;
+ u32 stride;
+ struct psb_drm_dpu_rect *rect = &dpu_info->damage_pipea;
+ struct drm_device *dev = dpu_info->dev;
+
+ if (plane == MDFLD_PLANEC) {
+ pipesrc_reg = PIPECSRC;
+ dspsize_reg = DSPCSIZE;
+ dspoff_reg = DSPCLINOFF;
+ dspsurf_reg = DSPCSURF;
+ dspstride_reg = DSPCSTRIDE;
+ rect = &dpu_info->damage_pipec;
+ }
+
+ stride = REG_READ(dspstride_reg);
+ /* FIXME: should I do the pipe src update here? */
+ REG_WRITE(pipesrc_reg, ((rect->width - 1) << 16) | (rect->height - 1));
+ /* Flush plane */
+ REG_WRITE(dspsize_reg, ((rect->height - 1) << 16) | (rect->width - 1));
+ REG_WRITE(dspoff_reg, ((rect->x * 4) + (rect->y * stride)));
+ REG_WRITE(dspsurf_reg, REG_READ(dspsurf_reg));
+
+ /*
+ * TODO: wait for flip finished and restore the pipesrc reg,
+ * or cursor will be show at a wrong position
+ */
+}
+
+static void mdfld_dpu_overlay_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+ mdfld_plane_t plane)
+{
+}
+
+/*
+ * TODO: we are still in dbi normal mode now, we will try to use partial
+ * mode later.
+ */
+static int mdfld_dbi_prepare_cb(struct mdfld_dsi_dbi_output *dbi_output,
+ struct mdfld_dbi_dpu_info *dpu_info, int pipe)
+{
+ u8 *cb_addr = (u8 *)dbi_output->dbi_cb_addr;
+ u32 *index;
+ struct psb_drm_dpu_rect *rect = pipe ?
+ (&dpu_info->damage_pipec) : (&dpu_info->damage_pipea);
+
+ /* FIXME: lock command buffer, this may lead to a deadlock,
+ as we already hold the dpu_update_lock */
+ if (!spin_trylock(&dbi_output->cb_lock)) {
+ DRM_ERROR("lock command buffer failed, try again\n");
+ return -EAGAIN;
+ }
+
+ index = &dbi_output->cb_write;
+
+ if (*index) {
+ DRM_ERROR("DBI command buffer unclean\n");
+ return -EAGAIN;
+ }
+
+ /* Column address */
+ *(cb_addr + ((*index)++)) = set_column_address;
+ *(cb_addr + ((*index)++)) = rect->x >> 8;
+ *(cb_addr + ((*index)++)) = rect->x;
+ *(cb_addr + ((*index)++)) = (rect->x + rect->width - 1) >> 8;
+ *(cb_addr + ((*index)++)) = (rect->x + rect->width - 1);
+
+ *index = 8;
+
+ /* Page address */
+ *(cb_addr + ((*index)++)) = set_page_addr;
+ *(cb_addr + ((*index)++)) = rect->y >> 8;
+ *(cb_addr + ((*index)++)) = rect->y;
+ *(cb_addr + ((*index)++)) = (rect->y + rect->height - 1) >> 8;
+ *(cb_addr + ((*index)++)) = (rect->y + rect->height - 1);
+
+ *index = 16;
+
+ /*write memory*/
+ *(cb_addr + ((*index)++)) = write_mem_start;
+
+ return 0;
+}
+
+static int mdfld_dbi_flush_cb(struct mdfld_dsi_dbi_output *dbi_output, int pipe)
+{
+ u32 cmd_phy = dbi_output->dbi_cb_phy;
+ u32 *index = &dbi_output->cb_write;
+ int reg_offset = pipe ? MIPIC_REG_OFFSET : 0;
+ struct drm_device *dev = dbi_output->dev;
+
+ if (*index == 0 || !dbi_output)
+ return 0;
+
+ REG_WRITE((MIPIA_CMD_LEN_REG + reg_offset), 0x010505);
+ REG_WRITE((MIPIA_CMD_ADD_REG + reg_offset), cmd_phy | 3);
+
+ *index = 0;
+
+ /* FIXME: unlock command buffer */
+ spin_unlock(&dbi_output->cb_lock);
+ return 0;
+}
+
+static int mdfld_dpu_update_pipe(struct mdfld_dsi_dbi_output *dbi_output,
+ struct mdfld_dbi_dpu_info *dpu_info, int pipe)
+{
+ struct drm_device *dev = dbi_output->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ mdfld_plane_t cursor_plane = MDFLD_CURSORA;
+ mdfld_plane_t fb_plane = MDFLD_PLANEA;
+ mdfld_plane_t overlay_plane = MDFLD_OVERLAYA;
+ int ret = 0;
+ u32 plane_mask = MDFLD_PIPEA_PLANE_MASK;
+
+ /* Damaged rects on this pipe */
+ if (pipe) {
+ cursor_plane = MDFLD_CURSORC;
+ fb_plane = MDFLD_PLANEC;
+ overlay_plane = MDFLD_OVERLAYC;
+ plane_mask = MDFLD_PIPEC_PLANE_MASK;
+ }
+
+ /*update cursor which assigned to @pipe*/
+ if (dpu_info->pending & (1 << cursor_plane))
+ mdfld_dpu_cursor_plane_flush(dpu_info, cursor_plane);
+
+ /*update fb which assigned to @pipe*/
+ if (dpu_info->pending & (1 << fb_plane))
+ mdfld_dpu_fb_plane_flush(dpu_info, fb_plane);
+
+ /* TODO: update overlay */
+ if (dpu_info->pending & (1 << overlay_plane))
+ mdfld_dpu_overlay_plane_flush(dpu_info, overlay_plane);
+
+ /* Flush damage area to panel fb */
+ if (dpu_info->pending & plane_mask) {
+ ret = mdfld_dbi_prepare_cb(dbi_output, dpu_info, pipe);
+ /*
+ * TODO: remove b_dsr_enable later,
+ * added it so that text console could boot smoothly
+ */
+ /* Clean pending flags on this pipe */
+ if (!ret && dev_priv->b_dsr_enable) {
+ dpu_info->pending &= ~plane_mask;
+ /* Reset overlay pipe damage rect */
+ mdfld_dpu_init_damage(dpu_info, pipe);
+ }
+ }
+ return ret;
+}
+
+static int mdfld_dpu_update_fb(struct drm_device *dev)
+{
+ struct drm_crtc *crtc;
+ struct psb_intel_crtc *psb_crtc;
+ struct mdfld_dsi_dbi_output **dbi_output;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+ bool pipe_updated[2];
+ unsigned long irq_flags;
+ u32 dpll_reg = MRST_DPLL_A;
+ u32 dspcntr_reg = DSPACNTR;
+ u32 pipeconf_reg = PIPEACONF;
+ u32 dsplinoff_reg = DSPALINOFF;
+ u32 dspsurf_reg = DSPASURF;
+ u32 mipi_state_reg = MIPIA_INTR_STAT_REG;
+ u32 reg_offset = 0;
+ int pipe;
+ int i;
+ int ret;
+
+ dbi_output = dpu_info->dbi_outputs;
+ pipe_updated[0] = pipe_updated[1] = false;
+
+ if (!gma_power_begin(dev, true))
+ return -EAGAIN;
+
+ /* Try to prevent any new damage reports */
+ if (!spin_trylock_irqsave(&dpu_info->dpu_update_lock, irq_flags))
+ return -EAGAIN;
+
+ for (i = 0; i < dpu_info->dbi_output_num; i++) {
+ crtc = dbi_output[i]->base.base.crtc;
+ psb_crtc = (crtc) ? to_psb_intel_crtc(crtc) : NULL;
+
+ pipe = dbi_output[i]->channel_num ? 2 : 0;
+
+ if (pipe == 2) {
+ dspcntr_reg = DSPCCNTR;
+ pipeconf_reg = PIPECCONF;
+ dsplinoff_reg = DSPCLINOFF;
+ dspsurf_reg = DSPCSURF;
+ reg_offset = MIPIC_REG_OFFSET;
+ }
+
+ if (!(REG_READ((MIPIA_GEN_FIFO_STAT_REG + reg_offset))
+ & (1 << 27)) ||
+ !(REG_READ(dpll_reg) & DPLL_VCO_ENABLE) ||
+ !(REG_READ(dspcntr_reg) & DISPLAY_PLANE_ENABLE) ||
+ !(REG_READ(pipeconf_reg) & DISPLAY_PLANE_ENABLE)) {
+ dev_err(dev->dev,
+ "DBI FIFO is busy, DSI %d state %x\n",
+ pipe,
+ REG_READ(mipi_state_reg + reg_offset));
+ continue;
+ }
+
+ /*
+ * If DBI output is in a exclusive state then the pipe
+ * change won't be updated
+ */
+ if (dbi_output[i]->dbi_panel_on &&
+ !(dbi_output[i]->mode_flags & MODE_SETTING_ON_GOING) &&
+ !(psb_crtc &&
+ psb_crtc->mode_flags & MODE_SETTING_ON_GOING) &&
+ !(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
+ ret = mdfld_dpu_update_pipe(dbi_output[i],
+ dpu_info, dbi_output[i]->channel_num ? 2 : 0);
+ if (!ret)
+ pipe_updated[i] = true;
+ }
+ }
+
+ for (i = 0; i < dpu_info->dbi_output_num; i++)
+ if (pipe_updated[i])
+ mdfld_dbi_flush_cb(dbi_output[i],
+ dbi_output[i]->channel_num ? 2 : 0);
+
+ spin_unlock_irqrestore(&dpu_info->dpu_update_lock, irq_flags);
+ gma_power_end(dev);
+ return 0;
+}
+
+static int __mdfld_dbi_exit_dsr(struct mdfld_dsi_dbi_output *dbi_output,
+ int pipe)
+{
+ struct drm_device *dev = dbi_output->dev;
+ struct drm_crtc *crtc = dbi_output->base.base.crtc;
+ struct psb_intel_crtc *psb_crtc = (crtc) ? to_psb_intel_crtc(crtc)
+ : NULL;
+ u32 reg_val;
+ u32 dpll_reg = MRST_DPLL_A;
+ u32 pipeconf_reg = PIPEACONF;
+ u32 dspcntr_reg = DSPACNTR;
+ u32 dspbase_reg = DSPABASE;
+ u32 dspsurf_reg = DSPASURF;
+ u32 reg_offset = 0;
+
+ if (!dbi_output)
+ return 0;
+
+ /*if mode setting on-going, back off*/
+ if ((dbi_output->mode_flags & MODE_SETTING_ON_GOING) ||
+ (psb_crtc && psb_crtc->mode_flags & MODE_SETTING_ON_GOING))
+ return -EAGAIN;
+
+ if (pipe == 2) {
+ dpll_reg = MRST_DPLL_A;
+ pipeconf_reg = PIPECCONF;
+ dspcntr_reg = DSPCCNTR;
+ dspbase_reg = MDFLD_DSPCBASE;
+ dspsurf_reg = DSPCSURF;
+
+ reg_offset = MIPIC_REG_OFFSET;
+ }
+
+ if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, true))
+ return -EAGAIN;
+
+ /* Enable DPLL */
+ reg_val = REG_READ(dpll_reg);
+ if (!(reg_val & DPLL_VCO_ENABLE)) {
+
+ if (reg_val & MDFLD_PWR_GATE_EN) {
+ reg_val &= ~MDFLD_PWR_GATE_EN;
+ REG_WRITE(dpll_reg, reg_val);
+ REG_READ(dpll_reg);
+ udelay(500);
+ }
+
+ reg_val |= DPLL_VCO_ENABLE;
+ REG_WRITE(dpll_reg, reg_val);
+ REG_READ(dpll_reg);
+ udelay(500);
+
+ /* FIXME: add timeout */
+ while (!(REG_READ(pipeconf_reg) & PIPECONF_DSIPLL_LOCK))
+ cpu_relax();
+ }
+
+ /* Enable pipe */
+ reg_val = REG_READ(pipeconf_reg);
+ if (!(reg_val & PIPEACONF_ENABLE)) {
+ reg_val |= PIPEACONF_ENABLE;
+ REG_WRITE(pipeconf_reg, reg_val);
+ REG_READ(pipeconf_reg);
+ udelay(500);
+ mdfldWaitForPipeEnable(dev, pipe);
+ }
+
+ /* Enable plane */
+ reg_val = REG_READ(dspcntr_reg);
+ if (!(reg_val & DISPLAY_PLANE_ENABLE)) {
+ reg_val |= DISPLAY_PLANE_ENABLE;
+ REG_WRITE(dspcntr_reg, reg_val);
+ REG_READ(dspcntr_reg);
+ udelay(500);
+ }
+
+ ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+
+ /*clean IN_DSR flag*/
+ dbi_output->mode_flags &= ~MODE_SETTING_IN_DSR;
+
+ return 0;
+}
+
+int mdfld_dpu_exit_dsr(struct drm_device *dev)
+{
+ struct mdfld_dsi_dbi_output **dbi_output;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+ int i;
+ int pipe;
+
+ dbi_output = dpu_info->dbi_outputs;
+
+ for (i = 0; i < dpu_info->dbi_output_num; i++) {
+ /* If this output is not in DSR mode, don't call exit dsr */
+ if (dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)
+ __mdfld_dbi_exit_dsr(dbi_output[i],
+ dbi_output[i]->channel_num ? 2 : 0);
+ }
+
+ /* Enable TE interrupt */
+ for (i = 0; i < dpu_info->dbi_output_num; i++) {
+ /* If this output is not in DSR mode, don't call exit dsr */
+ pipe = dbi_output[i]->channel_num ? 2 : 0;
+ if (dbi_output[i]->dbi_panel_on && pipe) {
+ mdfld_disable_te(dev, 0);
+ mdfld_enable_te(dev, 2);
+ } else if (dbi_output[i]->dbi_panel_on && !pipe) {
+ mdfld_disable_te(dev, 2);
+ mdfld_enable_te(dev, 0);
+ }
+ }
+ return 0;
+}
+
+static int mdfld_dpu_enter_dsr(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+ struct mdfld_dsi_dbi_output **dbi_output;
+ int i;
+
+ dbi_output = dpu_info->dbi_outputs;
+
+ for (i = 0; i < dpu_info->dbi_output_num; i++) {
+ /* If output is off or already in DSR state, don't re-enter */
+ if (dbi_output[i]->dbi_panel_on &&
+ !(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
+ mdfld_dsi_dbi_enter_dsr(dbi_output[i],
+ dbi_output[i]->channel_num ? 2 : 0);
+ }
+ }
+
+ return 0;
+}
+
+static void mdfld_dbi_dpu_timer_func(unsigned long data)
+{
+ struct drm_device *dev = (struct drm_device *)data;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+ struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+ unsigned long flags;
+
+ if (dpu_info->pending) {
+ dpu_info->idle_count = 0;
+ /* Update panel fb with damaged area */
+ mdfld_dpu_update_fb(dev);
+ } else {
+ dpu_info->idle_count++;
+ }
+
+ if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
+ mdfld_dpu_enter_dsr(dev);
+ /* Stop timer by return */
+ return;
+ }
+
+ spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+ if (!timer_pending(dpu_timer)) {
+ dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+ add_timer(dpu_timer);
+ }
+ spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+}
+
+void mdfld_dpu_update_panel(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+ if (dpu_info->pending) {
+ dpu_info->idle_count = 0;
+
+ /*update panel fb with damaged area*/
+ mdfld_dpu_update_fb(dev);
+ } else {
+ dpu_info->idle_count++;
+ }
+
+ if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
+ /*enter dsr*/
+ mdfld_dpu_enter_dsr(dev);
+ }
+}
+
+static int mdfld_dbi_dpu_timer_init(struct drm_device *dev,
+ struct mdfld_dbi_dpu_info *dpu_info)
+{
+ struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+ unsigned long flags;
+
+ spin_lock_init(&dpu_info->dpu_timer_lock);
+ spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+
+ init_timer(dpu_timer);
+
+ dpu_timer->data = (unsigned long)dev;
+ dpu_timer->function = mdfld_dbi_dpu_timer_func;
+ dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+
+ spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+
+ return 0;
+}
+
+void mdfld_dbi_dpu_timer_start(struct mdfld_dbi_dpu_info *dpu_info)
+{
+ struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+ if (!timer_pending(dpu_timer)) {
+ dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+ add_timer(dpu_timer);
+ }
+ spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+}
+
+int mdfld_dbi_dpu_init(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+ if (!dpu_info || IS_ERR(dpu_info)) {
+ dpu_info = kzalloc(sizeof(struct mdfld_dbi_dpu_info),
+ GFP_KERNEL);
+ if (!dpu_info) {
+ DRM_ERROR("No memory\n");
+ return -ENOMEM;
+ }
+ dev_priv->dbi_dpu_info = dpu_info;
+ }
+
+ dpu_info->dev = dev;
+
+ dpu_info->cursors[0].size = MDFLD_CURSOR_SIZE;
+ dpu_info->cursors[1].size = MDFLD_CURSOR_SIZE;
+
+ /*init dpu_update_lock*/
+ spin_lock_init(&dpu_info->dpu_update_lock);
+
+ /*init dpu refresh timer*/
+ mdfld_dbi_dpu_timer_init(dev, dpu_info);
+
+ /*init pipe damage area*/
+ mdfld_dpu_init_damage(dpu_info, 0);
+ mdfld_dpu_init_damage(dpu_info, 2);
+
+ return 0;
+}
+
+void mdfld_dbi_dpu_exit(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+ if (!dpu_info)
+ return;
+
+ del_timer_sync(&dpu_info->dpu_timer);
+ kfree(dpu_info);
+ dev_priv->dbi_dpu_info = NULL;
+}
+
+
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff