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;
}
/*
* This function is currently unused, but will be called when the
* output/mem2mem device at the IDMAC input pad sends us a new
* buffer. It kicks off the IDMAC read channels to bring in the
* buffer fields from memory and begin the conversions.
*/
static void __maybe_unused prepare_vdi_in_buffers(struct vdic_priv *priv,
struct imx_media_buffer *curr)
{
dma_addr_t prev_phys, curr_phys, next_phys;
struct imx_media_buffer *prev;
struct vb2_buffer *curr_vb, *prev_vb;
u32 fs = priv->field_size;
u32 is = priv->in_stride;
/* current input buffer is now previous */
priv->prev_in_buf = priv->curr_in_buf;
priv->curr_in_buf = curr;
prev = priv->prev_in_buf ? priv->prev_in_buf : curr;
prev_vb = &prev->vbuf.vb2_buf;
curr_vb = &curr->vbuf.vb2_buf;
switch (priv->fieldtype) {
case V4L2_FIELD_SEQ_TB:
case V4L2_FIELD_SEQ_BT:
prev_phys = vb2_dma_contig_plane_dma_addr(prev_vb, 0) + fs;
curr_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0);
next_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0) + fs;
break;
case V4L2_FIELD_INTERLACED_TB:
case V4L2_FIELD_INTERLACED_BT:
case V4L2_FIELD_INTERLACED:
prev_phys = vb2_dma_contig_plane_dma_addr(prev_vb, 0) + is;
curr_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0);
next_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0) + is;
break;
default:
/*
* can't get here, priv->fieldtype can only be one of
* the above. This is to quiet smatch errors.
*/
return;
}
ipu_cpmem_set_buffer(priv->vdi_in_ch_p, 0, prev_phys);
ipu_cpmem_set_buffer(priv->vdi_in_ch, 0, curr_phys);
ipu_cpmem_set_buffer(priv->vdi_in_ch_n, 0, next_phys);
ipu_idmac_select_buffer(priv->vdi_in_ch_p, 0);
ipu_idmac_select_buffer(priv->vdi_in_ch, 0);
ipu_idmac_select_buffer(priv->vdi_in_ch_n, 0);
}
