35be6d865c
When scaler is to be used we need to make sure that the input and output frame size do not exceed the maximum frame sizes that the scaler h/w can handle otherwise streaming stall as the scaler cannot proceed. The scaler buffer is limited to 2047 pixels (i.e. 11 bits) when attempting anything larger (2048 for example) the scaler stalls. Realistically in an mem2mem device we can only check for this type of issue when start_streaming is called. We can't do it during the try_fmt/s_fmt because we do not have all of the info needed at that point. So instead when start_streaming is called we need to check that the input and output frames size do not exceed the scaler's capability. The only time larger frame size are allowed is when the input frame szie is the same as the output frame size. Now in the case where we need to fail, start_streaming must return all previously queued buffer back otherwise the vb2 framework will issue kernel WARN messages. In this case we also give an error message. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
212 lines
6 KiB
C
212 lines
6 KiB
C
/*
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* Copyright (c) 2013 Texas Instruments Inc.
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*
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* David Griego, <dagriego@biglakesoftware.com>
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* Dale Farnsworth, <dale@farnsworth.org>
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* Archit Taneja, <archit@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef TI_SC_H
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#define TI_SC_H
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/* Scaler regs */
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#define CFG_SC0 0x0
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#define CFG_INTERLACE_O (1 << 0)
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#define CFG_LINEAR (1 << 1)
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#define CFG_SC_BYPASS (1 << 2)
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#define CFG_INVT_FID (1 << 3)
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#define CFG_USE_RAV (1 << 4)
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#define CFG_ENABLE_EV (1 << 5)
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#define CFG_AUTO_HS (1 << 6)
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#define CFG_DCM_2X (1 << 7)
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#define CFG_DCM_4X (1 << 8)
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#define CFG_HP_BYPASS (1 << 9)
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#define CFG_INTERLACE_I (1 << 10)
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#define CFG_ENABLE_SIN2_VER_INTP (1 << 11)
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#define CFG_Y_PK_EN (1 << 14)
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#define CFG_TRIM (1 << 15)
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#define CFG_SELFGEN_FID (1 << 16)
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#define CFG_SC1 0x4
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#define CFG_ROW_ACC_INC_MASK 0x07ffffff
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#define CFG_ROW_ACC_INC_SHIFT 0
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#define CFG_SC2 0x08
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#define CFG_ROW_ACC_OFFSET_MASK 0x0fffffff
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#define CFG_ROW_ACC_OFFSET_SHIFT 0
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#define CFG_SC3 0x0c
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#define CFG_ROW_ACC_OFFSET_B_MASK 0x0fffffff
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#define CFG_ROW_ACC_OFFSET_B_SHIFT 0
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#define CFG_SC4 0x10
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#define CFG_TAR_H_MASK 0x07ff
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#define CFG_TAR_H_SHIFT 0
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#define CFG_TAR_W_MASK 0x07ff
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#define CFG_TAR_W_SHIFT 12
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#define CFG_LIN_ACC_INC_U_MASK 0x07
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#define CFG_LIN_ACC_INC_U_SHIFT 24
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#define CFG_NLIN_ACC_INIT_U_MASK 0x07
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#define CFG_NLIN_ACC_INIT_U_SHIFT 28
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#define CFG_SC5 0x14
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#define CFG_SRC_H_MASK 0x07ff
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#define CFG_SRC_H_SHIFT 0
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#define CFG_SRC_W_MASK 0x07ff
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#define CFG_SRC_W_SHIFT 12
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#define CFG_NLIN_ACC_INC_U_MASK 0x07
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#define CFG_NLIN_ACC_INC_U_SHIFT 24
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#define CFG_SC6 0x18
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#define CFG_ROW_ACC_INIT_RAV_MASK 0x03ff
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#define CFG_ROW_ACC_INIT_RAV_SHIFT 0
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#define CFG_ROW_ACC_INIT_RAV_B_MASK 0x03ff
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#define CFG_ROW_ACC_INIT_RAV_B_SHIFT 10
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#define CFG_SC8 0x20
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#define CFG_NLIN_LEFT_MASK 0x07ff
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#define CFG_NLIN_LEFT_SHIFT 0
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#define CFG_NLIN_RIGHT_MASK 0x07ff
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#define CFG_NLIN_RIGHT_SHIFT 12
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#define CFG_SC9 0x24
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#define CFG_LIN_ACC_INC CFG_SC9
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#define CFG_SC10 0x28
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#define CFG_NLIN_ACC_INIT CFG_SC10
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#define CFG_SC11 0x2c
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#define CFG_NLIN_ACC_INC CFG_SC11
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#define CFG_SC12 0x30
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#define CFG_COL_ACC_OFFSET_MASK 0x01ffffff
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#define CFG_COL_ACC_OFFSET_SHIFT 0
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#define CFG_SC13 0x34
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#define CFG_SC_FACTOR_RAV_MASK 0xff
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#define CFG_SC_FACTOR_RAV_SHIFT 0
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#define CFG_CHROMA_INTP_THR_MASK 0x03ff
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#define CFG_CHROMA_INTP_THR_SHIFT 12
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#define CFG_DELTA_CHROMA_THR_MASK 0x0f
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#define CFG_DELTA_CHROMA_THR_SHIFT 24
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#define CFG_SC17 0x44
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#define CFG_EV_THR_MASK 0x03ff
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#define CFG_EV_THR_SHIFT 12
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#define CFG_DELTA_LUMA_THR_MASK 0x0f
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#define CFG_DELTA_LUMA_THR_SHIFT 24
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#define CFG_DELTA_EV_THR_MASK 0x0f
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#define CFG_DELTA_EV_THR_SHIFT 28
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#define CFG_SC18 0x48
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#define CFG_HS_FACTOR_MASK 0x03ff
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#define CFG_HS_FACTOR_SHIFT 0
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#define CFG_CONF_DEFAULT_MASK 0x01ff
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#define CFG_CONF_DEFAULT_SHIFT 16
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#define CFG_SC19 0x4c
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#define CFG_HPF_COEFF0_MASK 0xff
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#define CFG_HPF_COEFF0_SHIFT 0
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#define CFG_HPF_COEFF1_MASK 0xff
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#define CFG_HPF_COEFF1_SHIFT 8
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#define CFG_HPF_COEFF2_MASK 0xff
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#define CFG_HPF_COEFF2_SHIFT 16
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#define CFG_HPF_COEFF3_MASK 0xff
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#define CFG_HPF_COEFF3_SHIFT 23
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#define CFG_SC20 0x50
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#define CFG_HPF_COEFF4_MASK 0xff
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#define CFG_HPF_COEFF4_SHIFT 0
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#define CFG_HPF_COEFF5_MASK 0xff
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#define CFG_HPF_COEFF5_SHIFT 8
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#define CFG_HPF_NORM_SHIFT_MASK 0x07
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#define CFG_HPF_NORM_SHIFT_SHIFT 16
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#define CFG_NL_LIMIT_MASK 0x1ff
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#define CFG_NL_LIMIT_SHIFT 20
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#define CFG_SC21 0x54
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#define CFG_NL_LO_THR_MASK 0x01ff
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#define CFG_NL_LO_THR_SHIFT 0
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#define CFG_NL_LO_SLOPE_MASK 0xff
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#define CFG_NL_LO_SLOPE_SHIFT 16
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#define CFG_SC22 0x58
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#define CFG_NL_HI_THR_MASK 0x01ff
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#define CFG_NL_HI_THR_SHIFT 0
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#define CFG_NL_HI_SLOPE_SH_MASK 0x07
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#define CFG_NL_HI_SLOPE_SH_SHIFT 16
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#define CFG_SC23 0x5c
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#define CFG_GRADIENT_THR_MASK 0x07ff
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#define CFG_GRADIENT_THR_SHIFT 0
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#define CFG_GRADIENT_THR_RANGE_MASK 0x0f
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#define CFG_GRADIENT_THR_RANGE_SHIFT 12
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#define CFG_MIN_GY_THR_MASK 0xff
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#define CFG_MIN_GY_THR_SHIFT 16
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#define CFG_MIN_GY_THR_RANGE_MASK 0x0f
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#define CFG_MIN_GY_THR_RANGE_SHIFT 28
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#define CFG_SC24 0x60
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#define CFG_ORG_H_MASK 0x07ff
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#define CFG_ORG_H_SHIFT 0
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#define CFG_ORG_W_MASK 0x07ff
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#define CFG_ORG_W_SHIFT 16
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#define CFG_SC25 0x64
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#define CFG_OFF_H_MASK 0x07ff
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#define CFG_OFF_H_SHIFT 0
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#define CFG_OFF_W_MASK 0x07ff
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#define CFG_OFF_W_SHIFT 16
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/* number of phases supported by the polyphase scalers */
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#define SC_NUM_PHASES 32
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/* number of taps used by horizontal polyphase scaler */
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#define SC_H_NUM_TAPS 7
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/* number of taps used by vertical polyphase scaler */
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#define SC_V_NUM_TAPS 5
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/* number of taps expected by the scaler in it's coefficient memory */
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#define SC_NUM_TAPS_MEM_ALIGN 8
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/* Maximum frame width the scaler can handle (in pixels) */
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#define SC_MAX_PIXEL_WIDTH 2047
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/* Maximum frame height the scaler can handle (in lines) */
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#define SC_MAX_PIXEL_HEIGHT 2047
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/*
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* coefficient memory size in bytes:
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* num phases x num sets(luma and chroma) x num taps(aligned) x coeff size
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*/
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#define SC_COEF_SRAM_SIZE (SC_NUM_PHASES * 2 * SC_NUM_TAPS_MEM_ALIGN * 2)
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struct sc_data {
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void __iomem *base;
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struct resource *res;
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dma_addr_t loaded_coeff_h; /* loaded h coeffs in SC */
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dma_addr_t loaded_coeff_v; /* loaded v coeffs in SC */
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bool load_coeff_h; /* have new h SC coeffs */
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bool load_coeff_v; /* have new v SC coeffs */
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struct platform_device *pdev;
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};
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void sc_dump_regs(struct sc_data *sc);
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void sc_set_hs_coeffs(struct sc_data *sc, void *addr, unsigned int src_w,
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unsigned int dst_w);
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void sc_set_vs_coeffs(struct sc_data *sc, void *addr, unsigned int src_h,
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unsigned int dst_h);
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void sc_config_scaler(struct sc_data *sc, u32 *sc_reg0, u32 *sc_reg8,
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u32 *sc_reg17, unsigned int src_w, unsigned int src_h,
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unsigned int dst_w, unsigned int dst_h);
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struct sc_data *sc_create(struct platform_device *pdev, const char *res_name);
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#endif
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