From 773f06577b35f84f84de980e1be3eead8342b5e5 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 12 Dec 2013 05:35:59 -0300 Subject: [PATCH] [media] v4l: ti-vpe: make vpe driver load scaler coefficients Make the driver allocate dma buffers to store horizontal and scaler coeffs. Use the scaler library api to choose and copy scaler coefficients to a the above buffers based on the scaling ratio. Since the SC block comes after the de-interlacer, make sure that the source height is doubled if de-interlacer was used. These buffers now need to be used by VPDMA to load the coefficients into the SRAM within SC. In device_run, add configuration descriptors which have payloads pointing to the scaler coefficients in memory. Use the members in sc_data handle to prevent addition of these descriptors if there isn't a need to re-load coefficients into SC. This comes helps unnecessary re-loading of the coefficients when we switch back and forth between vpe contexts. Signed-off-by: Archit Taneja Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/ti-vpe/vpe.c | 47 ++++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index ecb85f9ae3ab..50d6d0e696e7 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -356,6 +356,8 @@ struct vpe_ctx { void *mv_buf[2]; /* virtual addrs of motion vector bufs */ size_t mv_buf_size; /* current motion vector buffer size */ struct vpdma_buf mmr_adb; /* shadow reg addr/data block */ + struct vpdma_buf sc_coeff_h; /* h coeff buffer */ + struct vpdma_buf sc_coeff_v; /* v coeff buffer */ struct vpdma_desc_list desc_list; /* DMA descriptor list */ bool deinterlacing; /* using de-interlacer */ @@ -765,6 +767,10 @@ static int set_srcdst_params(struct vpe_ctx *ctx) struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC]; struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST]; struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + unsigned int src_w = s_q_data->c_rect.width; + unsigned int src_h = s_q_data->c_rect.height; + unsigned int dst_w = d_q_data->c_rect.width; + unsigned int dst_h = d_q_data->c_rect.height; size_t mv_buf_size; int ret; @@ -777,7 +783,6 @@ static int set_srcdst_params(struct vpe_ctx *ctx) const struct vpdma_data_format *mv = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV]; - ctx->deinterlacing = 1; /* * we make sure that the source image has a 16 byte aligned * stride, we need to do the same for the motion vector buffer @@ -788,6 +793,9 @@ static int set_srcdst_params(struct vpe_ctx *ctx) bytes_per_line = ALIGN((s_q_data->width * mv->depth) >> 3, VPDMA_STRIDE_ALIGN); mv_buf_size = bytes_per_line * s_q_data->height; + + ctx->deinterlacing = 1; + src_h <<= 1; } else { ctx->deinterlacing = 0; mv_buf_size = 0; @@ -802,6 +810,8 @@ static int set_srcdst_params(struct vpe_ctx *ctx) set_cfg_and_line_modes(ctx); set_dei_regs(ctx); set_csc_coeff_bypass(ctx); + sc_set_hs_coeffs(ctx->dev->sc, ctx->sc_coeff_h.addr, src_w, dst_w); + sc_set_vs_coeffs(ctx->dev->sc, ctx->sc_coeff_v.addr, src_h, dst_h); sc_set_regs_bypass(ctx->dev->sc, &mmr_adb->sc_regs[0]); return 0; @@ -1035,6 +1045,7 @@ static void disable_irqs(struct vpe_ctx *ctx) static void device_run(void *priv) { struct vpe_ctx *ctx = priv; + struct sc_data *sc = ctx->dev->sc; struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST]; if (ctx->deinterlacing && ctx->src_vbs[2] == NULL) { @@ -1057,6 +1068,26 @@ static void device_run(void *priv) ctx->load_mmrs = false; } + if (sc->loaded_coeff_h != ctx->sc_coeff_h.dma_addr || + sc->load_coeff_h) { + vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->sc_coeff_h); + vpdma_add_cfd_block(&ctx->desc_list, CFD_SC_CLIENT, + &ctx->sc_coeff_h, 0); + + sc->loaded_coeff_h = ctx->sc_coeff_h.dma_addr; + sc->load_coeff_h = false; + } + + if (sc->loaded_coeff_v != ctx->sc_coeff_v.dma_addr || + sc->load_coeff_v) { + vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->sc_coeff_v); + vpdma_add_cfd_block(&ctx->desc_list, CFD_SC_CLIENT, + &ctx->sc_coeff_v, SC_COEF_SRAM_SIZE >> 4); + + sc->loaded_coeff_v = ctx->sc_coeff_v.dma_addr; + sc->load_coeff_v = false; + } + /* output data descriptors */ if (ctx->deinterlacing) add_out_dtd(ctx, VPE_PORT_MV_OUT); @@ -1180,6 +1211,8 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data) vpdma_unmap_desc_buf(dev->vpdma, &ctx->desc_list.buf); vpdma_unmap_desc_buf(dev->vpdma, &ctx->mmr_adb); + vpdma_unmap_desc_buf(dev->vpdma, &ctx->sc_coeff_h); + vpdma_unmap_desc_buf(dev->vpdma, &ctx->sc_coeff_v); vpdma_reset_desc_list(&ctx->desc_list); @@ -1752,6 +1785,14 @@ static int vpe_open(struct file *file) if (ret != 0) goto free_desc_list; + ret = vpdma_alloc_desc_buf(&ctx->sc_coeff_h, SC_COEF_SRAM_SIZE); + if (ret != 0) + goto free_mmr_adb; + + ret = vpdma_alloc_desc_buf(&ctx->sc_coeff_v, SC_COEF_SRAM_SIZE); + if (ret != 0) + goto free_sc_h; + init_adb_hdrs(ctx); v4l2_fh_init(&ctx->fh, video_devdata(file)); @@ -1820,6 +1861,10 @@ static int vpe_open(struct file *file) exit_fh: v4l2_ctrl_handler_free(hdl); v4l2_fh_exit(&ctx->fh); + vpdma_free_desc_buf(&ctx->sc_coeff_v); +free_sc_h: + vpdma_free_desc_buf(&ctx->sc_coeff_h); +free_mmr_adb: vpdma_free_desc_buf(&ctx->mmr_adb); free_desc_list: vpdma_free_desc_list(&ctx->desc_list); -- 2.30.2