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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/staging/media/atomisp/pci/gdc_v2_defs.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/staging/media/atomisp/pci/gdc_v2_defs.h')
-rw-r--r--drivers/staging/media/atomisp/pci/gdc_v2_defs.h164
1 files changed, 164 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/gdc_v2_defs.h b/drivers/staging/media/atomisp/pci/gdc_v2_defs.h
new file mode 100644
index 000000000..804df8179
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/gdc_v2_defs.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef HRT_GDC_v2_defs_h_
+#define HRT_GDC_v2_defs_h_
+
+#define HRT_GDC_IS_V2
+
+#define HRT_GDC_N 1024 /* Top-level design constant, equal to the number of entries in the LUT */
+#define HRT_GDC_FRAC_BITS 10 /* Number of fractional bits in the GDC block, driven by the size of the LUT */
+
+#define HRT_GDC_BLI_FRAC_BITS 4 /* Number of fractional bits for the bi-linear interpolation type */
+#define HRT_GDC_BLI_COEF_ONE BIT(HRT_GDC_BLI_FRAC_BITS)
+
+#define HRT_GDC_BCI_COEF_BITS 14 /* 14 bits per coefficient */
+#define HRT_GDC_BCI_COEF_ONE (1 << (HRT_GDC_BCI_COEF_BITS - 2)) /* We represent signed 10 bit coefficients. */
+/* The supported range is [-256, .., +256] */
+/* in 14-bit signed notation, */
+/* We need all ten bits (MSB must be zero). */
+/* -s is inserted to solve this issue, and */
+/* therefore "1" is equal to +256. */
+#define HRT_GDC_BCI_COEF_MASK ((1 << HRT_GDC_BCI_COEF_BITS) - 1)
+
+#define HRT_GDC_LUT_BYTES (HRT_GDC_N * 4 * 2) /* 1024 addresses, 4 coefficients per address, */
+/* 2 bytes per coefficient */
+
+#define _HRT_GDC_REG_ALIGN 4
+
+// 31 30 29 25 24 0
+// |-----|---|--------|------------------------|
+// | CMD | C | Reg_ID | Value |
+
+// There are just two commands possible for the GDC block:
+// 1 - Configure reg
+// 0 - Data token
+
+// C - Reserved bit
+// Used in protocol to indicate whether it is C-run or other type of runs
+// In case of C-run, this bit has a value of 1, for all the other runs, it is 0.
+
+// Reg_ID - Address of the register to be configured
+
+// Value - Value to store to the addressed register, maximum of 24 bits
+
+// Configure reg command is not followed by any other token.
+// The address of the register and the data to be filled in is contained in the same token
+
+// When the first data token is received, it must be:
+// 1. FRX and FRY (device configured in one of the scaling modes) ***DEFAULT MODE***, or,
+// 2. P0'X (device configured in one of the tetragon modes)
+// After the first data token is received, pre-defined number of tokens with the following meaning follow:
+// 1. two tokens: SRC address ; DST address
+// 2. nine tokens: P0'Y, .., P3'Y ; SRC address ; DST address
+
+#define HRT_GDC_CONFIG_CMD 1
+#define HRT_GDC_DATA_CMD 0
+
+#define HRT_GDC_CMD_POS 31
+#define HRT_GDC_CMD_BITS 1
+#define HRT_GDC_CRUN_POS 30
+#define HRT_GDC_REG_ID_POS 25
+#define HRT_GDC_REG_ID_BITS 5
+#define HRT_GDC_DATA_POS 0
+#define HRT_GDC_DATA_BITS 25
+
+#define HRT_GDC_FRYIPXFRX_BITS 26
+#define HRT_GDC_P0X_BITS 23
+
+#define HRT_GDC_MAX_OXDIM (8192 - 64)
+#define HRT_GDC_MAX_OYDIM 4095
+#define HRT_GDC_MAX_IXDIM (8192 - 64)
+#define HRT_GDC_MAX_IYDIM 4095
+#define HRT_GDC_MAX_DS_FAC 16
+#define HRT_GDC_MAX_DX (HRT_GDC_MAX_DS_FAC * HRT_GDC_N - 1)
+#define HRT_GDC_MAX_DY HRT_GDC_MAX_DX
+
+/* GDC lookup tables entries are 10 bits values, but they're
+ stored 2 by 2 as 32 bit values, yielding 16 bits per entry.
+ A GDC lookup table contains 64 * 4 elements */
+
+#define HRT_GDC_PERF_1_1_pix 0
+#define HRT_GDC_PERF_2_1_pix 1
+#define HRT_GDC_PERF_1_2_pix 2
+#define HRT_GDC_PERF_2_2_pix 3
+
+#define HRT_GDC_NND_MODE 0
+#define HRT_GDC_BLI_MODE 1
+#define HRT_GDC_BCI_MODE 2
+#define HRT_GDC_LUT_MODE 3
+
+#define HRT_GDC_SCAN_STB 0
+#define HRT_GDC_SCAN_STR 1
+
+#define HRT_GDC_MODE_SCALING 0
+#define HRT_GDC_MODE_TETRAGON 1
+
+#define HRT_GDC_LUT_COEFF_OFFSET 16
+#define HRT_GDC_FRY_BIT_OFFSET 16
+// FRYIPXFRX is the only register where we store two values in one field,
+// to save one token in the scaling protocol.
+// Like this, we have three tokens in the scaling protocol,
+// Otherwise, we would have had four.
+// The register bit-map is:
+// 31 26 25 16 15 10 9 0
+// |------|----------|------|----------|
+// | XXXX | FRY | IPX | FRX |
+
+#define HRT_GDC_CE_FSM0_POS 0
+#define HRT_GDC_CE_FSM0_LEN 2
+#define HRT_GDC_CE_OPY_POS 2
+#define HRT_GDC_CE_OPY_LEN 14
+#define HRT_GDC_CE_OPX_POS 16
+#define HRT_GDC_CE_OPX_LEN 16
+// CHK_ENGINE register bit-map:
+// 31 16 15 2 1 0
+// |----------------|-----------|----|
+// | OPX | OPY |FSM0|
+// However, for the time being at least,
+// this implementation is meaningless in hss model,
+// So, we just return 0
+
+#define HRT_GDC_CHK_ENGINE_IDX 0
+#define HRT_GDC_WOIX_IDX 1
+#define HRT_GDC_WOIY_IDX 2
+#define HRT_GDC_BPP_IDX 3
+#define HRT_GDC_FRYIPXFRX_IDX 4
+#define HRT_GDC_OXDIM_IDX 5
+#define HRT_GDC_OYDIM_IDX 6
+#define HRT_GDC_SRC_ADDR_IDX 7
+#define HRT_GDC_SRC_END_ADDR_IDX 8
+#define HRT_GDC_SRC_WRAP_ADDR_IDX 9
+#define HRT_GDC_SRC_STRIDE_IDX 10
+#define HRT_GDC_DST_ADDR_IDX 11
+#define HRT_GDC_DST_STRIDE_IDX 12
+#define HRT_GDC_DX_IDX 13
+#define HRT_GDC_DY_IDX 14
+#define HRT_GDC_P0X_IDX 15
+#define HRT_GDC_P0Y_IDX 16
+#define HRT_GDC_P1X_IDX 17
+#define HRT_GDC_P1Y_IDX 18
+#define HRT_GDC_P2X_IDX 19
+#define HRT_GDC_P2Y_IDX 20
+#define HRT_GDC_P3X_IDX 21
+#define HRT_GDC_P3Y_IDX 22
+#define HRT_GDC_PERF_POINT_IDX 23 // 1x1 ; 1x2 ; 2x1 ; 2x2 pixels per cc
+#define HRT_GDC_INTERP_TYPE_IDX 24 // NND ; BLI ; BCI ; LUT
+#define HRT_GDC_SCAN_IDX 25 // 0 = STB (Slide To Bottom) ; 1 = STR (Slide To Right)
+#define HRT_GDC_PROC_MODE_IDX 26 // 0 = Scaling ; 1 = Tetragon
+
+#define HRT_GDC_LUT_IDX 32
+
+#endif /* HRT_GDC_v2_defs_h_ */