diff options
Diffstat (limited to 'drivers/media/platform/arm/mali-c55/mali-c55-resizer.c')
| -rw-r--r-- | drivers/media/platform/arm/mali-c55/mali-c55-resizer.c | 1156 |
1 files changed, 1156 insertions, 0 deletions
diff --git a/drivers/media/platform/arm/mali-c55/mali-c55-resizer.c b/drivers/media/platform/arm/mali-c55/mali-c55-resizer.c new file mode 100644 index 000000000000..a8d739af74b6 --- /dev/null +++ b/drivers/media/platform/arm/mali-c55/mali-c55-resizer.c @@ -0,0 +1,1156 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ARM Mali-C55 ISP Driver - Image signal processor + * + * Copyright (C) 2025 Ideas on Board Oy + */ + +#include <linux/math.h> +#include <linux/minmax.h> + +#include <media/media-entity.h> +#include <media/v4l2-subdev.h> + +#include "mali-c55-common.h" +#include "mali-c55-registers.h" + +/* Scaling factor in Q4.20 format. */ +#define MALI_C55_RSZ_SCALER_FACTOR (1U << 20) + +#define MALI_C55_RSZ_COEFS_BANKS 8 +#define MALI_C55_RSZ_COEFS_ENTRIES 64 + +static inline struct mali_c55_resizer * +sd_to_mali_c55_rsz(struct v4l2_subdev *sd) +{ + return container_of(sd, struct mali_c55_resizer, sd); +} + +static const unsigned int +mali_c55_rsz_filter_coeffs_h[MALI_C55_RSZ_COEFS_BANKS] + [MALI_C55_RSZ_COEFS_ENTRIES] = { + { /* Bank 0 */ + 0x24fc0000, 0x0000fc24, 0x27fc0000, 0x0000fc21, + 0x28fc0000, 0x0000fd1f, 0x2cfb0000, 0x0000fd1c, + 0x2efb0000, 0x0000fd1a, 0x30fb0000, 0x0000fe17, + 0x32fb0000, 0x0000fe15, 0x35fb0000, 0x0000fe12, + 0x35fc0000, 0x0000ff10, 0x37fc0000, 0x0000ff0e, + 0x39fc0000, 0x0000ff0c, 0x3afd0000, 0x0000ff0a, + 0x3afe0000, 0x00000008, 0x3cfe0000, 0x00000006, + 0x3dff0000, 0x00000004, 0x3d000000, 0x00000003, + 0x3c020000, 0x00000002, 0x3d030000, 0x00000000, + 0x3d040000, 0x000000ff, 0x3c060000, 0x000000fe, + 0x3a080000, 0x000000fe, 0x3a0aff00, 0x000000fd, + 0x390cff00, 0x000000fc, 0x370eff00, 0x000000fc, + 0x3510ff00, 0x000000fc, 0x3512fe00, 0x000000fb, + 0x3215fe00, 0x000000fb, 0x3017fe00, 0x000000fb, + 0x2e1afd00, 0x000000fb, 0x2c1cfd00, 0x000000fb, + 0x281ffd00, 0x000000fc, 0x2721fc00, 0x000000fc, + }, + { /* Bank 1 */ + 0x25fb0000, 0x0000fb25, 0x27fb0000, 0x0000fb23, + 0x29fb0000, 0x0000fb21, 0x2afc0000, 0x0000fb1f, + 0x2cfc0000, 0x0000fb1d, 0x2efc0000, 0x0000fb1b, + 0x2ffd0000, 0x0000fb19, 0x2ffe0000, 0x0000fc17, + 0x31fe0000, 0x0000fc15, 0x32ff0000, 0x0000fc13, + 0x3400ff00, 0x0000fc11, 0x3301ff00, 0x0000fd10, + 0x3402ff00, 0x0000fd0e, 0x3503ff00, 0x0000fd0c, + 0x3505ff00, 0x0000fd0a, 0x3506fe00, 0x0000fe09, + 0x3607fe00, 0x0000fe07, 0x3509fe00, 0x0000fe06, + 0x350afd00, 0x0000ff05, 0x350cfd00, 0x0000ff03, + 0x340efd00, 0x0000ff02, 0x3310fd00, 0x0000ff01, + 0x3411fc00, 0x0000ff00, 0x3213fc00, 0x000000ff, + 0x3115fc00, 0x000000fe, 0x2f17fc00, 0x000000fe, + 0x2f19fb00, 0x000000fd, 0x2e1bfb00, 0x000000fc, + 0x2c1dfb00, 0x000000fc, 0x2a1ffb00, 0x000000fc, + 0x2921fb00, 0x000000fb, 0x2723fb00, 0x000000fb, + }, + { /* Bank 2 */ + 0x1f010000, 0x0000011f, 0x21010000, 0x0000001e, + 0x21020000, 0x0000001d, 0x22020000, 0x0000001c, + 0x23030000, 0x0000ff1b, 0x2404ff00, 0x0000ff1a, + 0x2504ff00, 0x0000ff19, 0x2505ff00, 0x0000ff18, + 0x2606ff00, 0x0000fe17, 0x2607ff00, 0x0000fe16, + 0x2708ff00, 0x0000fe14, 0x2709ff00, 0x0000fe13, + 0x270aff00, 0x0000fe12, 0x280bfe00, 0x0000fe11, + 0x280cfe00, 0x0000fe10, 0x280dfe00, 0x0000fe0f, + 0x280efe00, 0x0000fe0e, 0x280ffe00, 0x0000fe0d, + 0x2810fe00, 0x0000fe0c, 0x2811fe00, 0x0000fe0b, + 0x2712fe00, 0x0000ff0a, 0x2713fe00, 0x0000ff09, + 0x2714fe00, 0x0000ff08, 0x2616fe00, 0x0000ff07, + 0x2617fe00, 0x0000ff06, 0x2518ff00, 0x0000ff05, + 0x2519ff00, 0x0000ff04, 0x241aff00, 0x0000ff04, + 0x231bff00, 0x00000003, 0x221c0000, 0x00000002, + 0x211d0000, 0x00000002, 0x211e0000, 0x00000001, + }, + { /* Bank 3 */ + 0x1b06ff00, 0x00ff061b, 0x1b07ff00, 0x00ff061a, + 0x1c07ff00, 0x00ff051a, 0x1c08ff00, 0x00ff0519, + 0x1c09ff00, 0x00ff0419, 0x1d09ff00, 0x00ff0418, + 0x1e0aff00, 0x00ff0317, 0x1e0aff00, 0x00ff0317, + 0x1e0bff00, 0x00ff0316, 0x1f0cff00, 0x00ff0215, + 0x1e0cff00, 0x00000215, 0x1e0dff00, 0x00000214, + 0x1e0e0000, 0x00000113, 0x1e0e0000, 0x00000113, + 0x1e0f0000, 0x00000112, 0x1f100000, 0x00000011, + 0x20100000, 0x00000010, 0x1f110000, 0x00000010, + 0x1e120100, 0x0000000f, 0x1e130100, 0x0000000e, + 0x1e130100, 0x0000000e, 0x1e140200, 0x0000ff0d, + 0x1e150200, 0x0000ff0c, 0x1f1502ff, 0x0000ff0c, + 0x1e1603ff, 0x0000ff0b, 0x1e1703ff, 0x0000ff0a, + 0x1e1703ff, 0x0000ff0a, 0x1d1804ff, 0x0000ff09, + 0x1c1904ff, 0x0000ff09, 0x1c1905ff, 0x0000ff08, + 0x1c1a05ff, 0x0000ff07, 0x1b1a06ff, 0x0000ff07, + }, + { /* Bank 4 */ + 0x17090000, 0x00000917, 0x18090000, 0x00000916, + 0x170a0100, 0x00000816, 0x170a0100, 0x00000816, + 0x180b0100, 0x00000715, 0x180b0100, 0x00000715, + 0x170c0100, 0x00000715, 0x190c0100, 0x00000614, + 0x180d0100, 0x00000614, 0x190d0200, 0x00000513, + 0x180e0200, 0x00000513, 0x180e0200, 0x00000513, + 0x1a0e0200, 0x00000412, 0x190f0200, 0x00000412, + 0x190f0300, 0x00000411, 0x18100300, 0x00000411, + 0x1a100300, 0x00000310, 0x18110400, 0x00000310, + 0x19110400, 0x0000030f, 0x19120400, 0x0000020f, + 0x1a120400, 0x0000020e, 0x18130500, 0x0000020e, + 0x18130500, 0x0000020e, 0x19130500, 0x0000020d, + 0x18140600, 0x0000010d, 0x19140600, 0x0000010c, + 0x17150700, 0x0000010c, 0x18150700, 0x0000010b, + 0x18150700, 0x0000010b, 0x17160800, 0x0000010a, + 0x17160800, 0x0000010a, 0x18160900, 0x00000009, + }, + { /* Bank 5 */ + 0x120b0300, 0x00030b12, 0x120c0300, 0x00030b11, + 0x110c0400, 0x00030b11, 0x110c0400, 0x00030b11, + 0x130c0400, 0x00020a11, 0x120d0400, 0x00020a11, + 0x110d0500, 0x00020a11, 0x110d0500, 0x00020a11, + 0x130d0500, 0x00010911, 0x130e0500, 0x00010910, + 0x120e0600, 0x00010910, 0x120e0600, 0x00010910, + 0x130e0600, 0x00010810, 0x120f0600, 0x00010810, + 0x120f0700, 0x00000810, 0x130f0700, 0x0000080f, + 0x140f0700, 0x0000070f, 0x130f0800, 0x0000070f, + 0x12100800, 0x0000070f, 0x12100801, 0x0000060f, + 0x13100801, 0x0000060e, 0x12100901, 0x0000060e, + 0x12100901, 0x0000060e, 0x13100901, 0x0000050e, + 0x13110901, 0x0000050d, 0x11110a02, 0x0000050d, + 0x11110a02, 0x0000050d, 0x12110a02, 0x0000040d, + 0x13110a02, 0x0000040c, 0x11110b03, 0x0000040c, + 0x11110b03, 0x0000040c, 0x12110b03, 0x0000030c, + }, + { /* Bank 6 */ + 0x0b0a0805, 0x00080a0c, 0x0b0a0805, 0x00080a0c, + 0x0c0a0805, 0x00080a0b, 0x0c0a0805, 0x00080a0b, + 0x0d0a0805, 0x00070a0b, 0x0d0a0805, 0x00070a0b, + 0x0d0a0805, 0x00070a0b, 0x0c0a0806, 0x00070a0b, + 0x0b0b0806, 0x00070a0b, 0x0c0b0806, 0x0007090b, + 0x0b0b0906, 0x0007090b, 0x0b0b0906, 0x0007090b, + 0x0b0b0906, 0x0007090b, 0x0b0b0906, 0x0007090b, + 0x0b0b0906, 0x0007090b, 0x0c0b0906, 0x0006090b, + 0x0c0b0906, 0x0006090b, 0x0c0b0906, 0x0006090b, + 0x0b0b0907, 0x0006090b, 0x0b0b0907, 0x0006090b, + 0x0b0b0907, 0x0006090b, 0x0b0b0907, 0x0006090b, + 0x0b0b0907, 0x0006090b, 0x0c0b0907, 0x0006080b, + 0x0b0b0a07, 0x0006080b, 0x0c0b0a07, 0x0006080a, + 0x0d0b0a07, 0x0005080a, 0x0d0b0a07, 0x0005080a, + 0x0d0b0a07, 0x0005080a, 0x0c0b0a08, 0x0005080a, + 0x0c0b0a08, 0x0005080a, 0x0c0b0a08, 0x0005080a, + }, + { /* Bank 7 */ + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + 0x0909090a, 0x00090909, 0x0909090a, 0x00090909, + } +}; + +static const unsigned int +mali_c55_rsz_filter_coeffs_v[MALI_C55_RSZ_COEFS_BANKS] + [MALI_C55_RSZ_COEFS_ENTRIES] = { + { /* Bank 0 */ + 0x2424fc00, 0x000000fc, 0x2721fc00, 0x000000fc, + 0x281ffd00, 0x000000fc, 0x2c1cfd00, 0x000000fb, + 0x2e1afd00, 0x000000fb, 0x3017fe00, 0x000000fb, + 0x3215fe00, 0x000000fb, 0x3512fe00, 0x000000fb, + 0x3510ff00, 0x000000fc, 0x370eff00, 0x000000fc, + 0x390cff00, 0x000000fc, 0x3a0aff00, 0x000000fd, + 0x3a080000, 0x000000fe, 0x3c060000, 0x000000fe, + 0x3d040000, 0x000000ff, 0x3d030000, 0x00000000, + 0x3c020000, 0x00000002, 0x3d000000, 0x00000003, + 0x3dff0000, 0x00000004, 0x3cfe0000, 0x00000006, + 0x3afe0000, 0x00000008, 0x3afd0000, 0x0000ff0a, + 0x39fc0000, 0x0000ff0c, 0x37fc0000, 0x0000ff0e, + 0x35fc0000, 0x0000ff10, 0x35fb0000, 0x0000fe12, + 0x32fb0000, 0x0000fe15, 0x30fb0000, 0x0000fe17, + 0x2efb0000, 0x0000fd1a, 0x2cfb0000, 0x0000fd1c, + 0x28fc0000, 0x0000fd1f, 0x27fc0000, 0x0000fc21, + }, + { /* Bank 1 */ + 0x2525fb00, 0x000000fb, 0x2723fb00, 0x000000fb, + 0x2921fb00, 0x000000fb, 0x2a1ffb00, 0x000000fc, + 0x2c1dfb00, 0x000000fc, 0x2e1bfb00, 0x000000fc, + 0x2f19fb00, 0x000000fd, 0x2f17fc00, 0x000000fe, + 0x3115fc00, 0x000000fe, 0x3213fc00, 0x000000ff, + 0x3411fc00, 0x0000ff00, 0x3310fd00, 0x0000ff01, + 0x340efd00, 0x0000ff02, 0x350cfd00, 0x0000ff03, + 0x350afd00, 0x0000ff05, 0x3509fe00, 0x0000fe06, + 0x3607fe00, 0x0000fe07, 0x3506fe00, 0x0000fe09, + 0x3505ff00, 0x0000fd0a, 0x3503ff00, 0x0000fd0c, + 0x3402ff00, 0x0000fd0e, 0x3301ff00, 0x0000fd10, + 0x3400ff00, 0x0000fc11, 0x32ff0000, 0x0000fc13, + 0x31fe0000, 0x0000fc15, 0x2ffe0000, 0x0000fc17, + 0x2ffd0000, 0x0000fb19, 0x2efc0000, 0x0000fb1b, + 0x2cfc0000, 0x0000fb1d, 0x2afc0000, 0x0000fb1f, + 0x29fb0000, 0x0000fb21, 0x27fb0000, 0x0000fb23, + }, + { /* Bank 2 */ + 0x1f1f0100, 0x00000001, 0x211e0000, 0x00000001, + 0x211d0000, 0x00000002, 0x221c0000, 0x00000002, + 0x231bff00, 0x00000003, 0x241aff00, 0x0000ff04, + 0x2519ff00, 0x0000ff04, 0x2518ff00, 0x0000ff05, + 0x2617fe00, 0x0000ff06, 0x2616fe00, 0x0000ff07, + 0x2714fe00, 0x0000ff08, 0x2713fe00, 0x0000ff09, + 0x2712fe00, 0x0000ff0a, 0x2811fe00, 0x0000fe0b, + 0x2810fe00, 0x0000fe0c, 0x280ffe00, 0x0000fe0d, + 0x280efe00, 0x0000fe0e, 0x280dfe00, 0x0000fe0f, + 0x280cfe00, 0x0000fe10, 0x280bfe00, 0x0000fe11, + 0x270aff00, 0x0000fe12, 0x2709ff00, 0x0000fe13, + 0x2708ff00, 0x0000fe14, 0x2607ff00, 0x0000fe16, + 0x2606ff00, 0x0000fe17, 0x2505ff00, 0x0000ff18, + 0x2504ff00, 0x0000ff19, 0x2404ff00, 0x0000ff1a, + 0x23030000, 0x0000ff1b, 0x22020000, 0x0000001c, + 0x21020000, 0x0000001d, 0x21010000, 0x0000001e, + }, + { /* Bank 3 */ + 0x1b1b06ff, 0x0000ff06, 0x1b1a06ff, 0x0000ff07, + 0x1c1a05ff, 0x0000ff07, 0x1c1905ff, 0x0000ff08, + 0x1c1904ff, 0x0000ff09, 0x1d1804ff, 0x0000ff09, + 0x1e1703ff, 0x0000ff0a, 0x1e1703ff, 0x0000ff0a, + 0x1e1603ff, 0x0000ff0b, 0x1f1502ff, 0x0000ff0c, + 0x1e150200, 0x0000ff0c, 0x1e140200, 0x0000ff0d, + 0x1e130100, 0x0000000e, 0x1e130100, 0x0000000e, + 0x1e120100, 0x0000000f, 0x1f110000, 0x00000010, + 0x20100000, 0x00000010, 0x1f100000, 0x00000011, + 0x1e0f0000, 0x00000112, 0x1e0e0000, 0x00000113, + 0x1e0e0000, 0x00000113, 0x1e0dff00, 0x00000214, + 0x1e0cff00, 0x00000215, 0x1f0cff00, 0x00ff0215, + 0x1e0bff00, 0x00ff0316, 0x1e0aff00, 0x00ff0317, + 0x1e0aff00, 0x00ff0317, 0x1d09ff00, 0x00ff0418, + 0x1c09ff00, 0x00ff0419, 0x1c08ff00, 0x00ff0519, + 0x1c07ff00, 0x00ff051a, 0x1b07ff00, 0x00ff061a, + }, + { /* Bank 4 */ + 0x17170900, 0x00000009, 0x18160900, 0x00000009, + 0x17160800, 0x0000010a, 0x17160800, 0x0000010a, + 0x18150700, 0x0000010b, 0x18150700, 0x0000010b, + 0x17150700, 0x0000010c, 0x19140600, 0x0000010c, + 0x18140600, 0x0000010d, 0x19130500, 0x0000020d, + 0x18130500, 0x0000020e, 0x18130500, 0x0000020e, + 0x1a120400, 0x0000020e, 0x19120400, 0x0000020f, + 0x19110400, 0x0000030f, 0x18110400, 0x00000310, + 0x1a100300, 0x00000310, 0x18100300, 0x00000411, + 0x190f0300, 0x00000411, 0x190f0200, 0x00000412, + 0x1a0e0200, 0x00000412, 0x180e0200, 0x00000513, + 0x180e0200, 0x00000513, 0x190d0200, 0x00000513, + 0x180d0100, 0x00000614, 0x190c0100, 0x00000614, + 0x170c0100, 0x00000715, 0x180b0100, 0x00000715, + 0x180b0100, 0x00000715, 0x170a0100, 0x00000816, + 0x170a0100, 0x00000816, 0x18090000, 0x00000916, + }, + { /* Bank 5 */ + 0x12120b03, 0x0000030b, 0x12110b03, 0x0000030c, + 0x11110b03, 0x0000040c, 0x11110b03, 0x0000040c, + 0x13110a02, 0x0000040c, 0x12110a02, 0x0000040d, + 0x11110a02, 0x0000050d, 0x11110a02, 0x0000050d, + 0x13110901, 0x0000050d, 0x13100901, 0x0000050e, + 0x12100901, 0x0000060e, 0x12100901, 0x0000060e, + 0x13100801, 0x0000060e, 0x12100801, 0x0000060f, + 0x12100800, 0x0000070f, 0x130f0800, 0x0000070f, + 0x140f0700, 0x0000070f, 0x130f0700, 0x0000080f, + 0x120f0700, 0x00000810, 0x120f0600, 0x00010810, + 0x130e0600, 0x00010810, 0x120e0600, 0x00010910, + 0x120e0600, 0x00010910, 0x130e0500, 0x00010910, + 0x130d0500, 0x00010911, 0x110d0500, 0x00020a11, + 0x110d0500, 0x00020a11, 0x120d0400, 0x00020a11, + 0x130c0400, 0x00020a11, 0x110c0400, 0x00030b11, + 0x110c0400, 0x00030b11, 0x120c0300, 0x00030b11, + }, + { /* Bank 6 */ + 0x0b0c0a08, 0x0005080a, 0x0b0c0a08, 0x0005080a, + 0x0c0b0a08, 0x0005080a, 0x0c0b0a08, 0x0005080a, + 0x0d0b0a07, 0x0005080a, 0x0d0b0a07, 0x0005080a, + 0x0d0b0a07, 0x0005080a, 0x0c0b0a07, 0x0006080a, + 0x0b0b0a07, 0x0006080b, 0x0c0b0907, 0x0006080b, + 0x0b0b0907, 0x0006090b, 0x0b0b0907, 0x0006090b, + 0x0b0b0907, 0x0006090b, 0x0b0b0907, 0x0006090b, + 0x0b0b0907, 0x0006090b, 0x0c0b0906, 0x0006090b, + 0x0c0b0906, 0x0006090b, 0x0c0b0906, 0x0006090b, + 0x0b0b0906, 0x0007090b, 0x0b0b0906, 0x0007090b, + 0x0b0b0906, 0x0007090b, 0x0b0b0906, 0x0007090b, + 0x0b0b0906, 0x0007090b, 0x0c0b0806, 0x0007090b, + 0x0b0b0806, 0x00070a0b, 0x0c0a0806, 0x00070a0b, + 0x0d0a0805, 0x00070a0b, 0x0d0a0805, 0x00070a0b, + 0x0d0a0805, 0x00070a0b, 0x0c0a0805, 0x00080a0b, + 0x0c0a0805, 0x00080a0b, 0x0c0a0805, 0x00080a0b, + }, + { /* Bank 7 */ + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + 0x09090909, 0x000a0909, 0x09090909, 0x000a0909, + } +}; + +static const unsigned int mali_c55_rsz_coef_banks_range_start[] = { + 770, 600, 460, 354, 273, 210, 162, 125 +}; + +/* + * Select the right filter coefficients bank based on the scaler input and the + * scaler output sizes ratio, set by the v4l2 crop and scale selection + * rectangles respectively. + */ +static unsigned int mali_c55_rsz_calculate_bank(struct mali_c55 *mali_c55, + unsigned int rsz_in, + unsigned int rsz_out) +{ + unsigned int rsz_ratio = (rsz_out * 1000U) / rsz_in; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(mali_c55_rsz_coef_banks_range_start); i++) + if (rsz_ratio >= mali_c55_rsz_coef_banks_range_start[i]) + break; + + return i; +} + +static const u32 rsz_non_bypass_src_fmts[] = { + MEDIA_BUS_FMT_RGB121212_1X36, + MEDIA_BUS_FMT_YUV10_1X30 +}; + +static void mali_c55_resizer_program_coefficients(struct mali_c55_resizer *rsz) +{ + struct mali_c55 *mali_c55 = rsz->mali_c55; + unsigned int haddr = rsz->id == MALI_C55_RSZ_FR ? + MALI_C55_REG_FR_SCALER_HFILT : + MALI_C55_REG_DS_SCALER_HFILT; + unsigned int vaddr = rsz->id == MALI_C55_RSZ_FR ? + MALI_C55_REG_FR_SCALER_VFILT : + MALI_C55_REG_DS_SCALER_VFILT; + + for (unsigned int i = 0; i < MALI_C55_RSZ_COEFS_BANKS; i++) { + for (unsigned int j = 0; j < MALI_C55_RSZ_COEFS_ENTRIES; j++) { + mali_c55_write(mali_c55, haddr, + mali_c55_rsz_filter_coeffs_h[i][j]); + mali_c55_write(mali_c55, vaddr, + mali_c55_rsz_filter_coeffs_v[i][j]); + + haddr += sizeof(u32); + vaddr += sizeof(u32); + } + } +} + +static int mali_c55_rsz_program_crop(struct mali_c55_resizer *rsz, + const struct v4l2_subdev_state *state) +{ + const struct v4l2_mbus_framefmt *fmt; + const struct v4l2_rect *crop; + + /* Verify if crop should be enabled. */ + fmt = v4l2_subdev_state_get_format(state, MALI_C55_RSZ_SINK_PAD, 0); + crop = v4l2_subdev_state_get_crop(state, MALI_C55_RSZ_SINK_PAD, 0); + + if (fmt->width == crop->width && fmt->height == crop->height) + return MALI_C55_BYPASS_CROP; + + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_CROP_X_START, + crop->left); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_CROP_Y_START, + crop->top); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_CROP_X_SIZE, + crop->width); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_CROP_Y_SIZE, + crop->height); + + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_CROP_EN, + MALI_C55_CROP_ENABLE); + + return 0; +} + +static int mali_c55_rsz_program_resizer(struct mali_c55_resizer *rsz, + struct v4l2_subdev_state *state) +{ + struct mali_c55 *mali_c55 = rsz->mali_c55; + const struct v4l2_rect *crop, *scale; + unsigned int h_bank, v_bank; + u64 h_scale, v_scale; + + /* Verify if scaling should be enabled. */ + crop = v4l2_subdev_state_get_crop(state, MALI_C55_RSZ_SINK_PAD, 0); + scale = v4l2_subdev_state_get_compose(state, MALI_C55_RSZ_SINK_PAD, 0); + + if (crop->width == scale->width && crop->height == scale->height) + return MALI_C55_BYPASS_SCALER; + + /* Program the scaler coefficients if the scaler is in use. */ + mali_c55_resizer_program_coefficients(rsz); + + /* Program the V/H scaling factor in Q4.20 format. */ + h_scale = crop->width * MALI_C55_RSZ_SCALER_FACTOR; + v_scale = crop->height * MALI_C55_RSZ_SCALER_FACTOR; + + do_div(h_scale, scale->width); + do_div(v_scale, scale->height); + + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_IN_WIDTH, + crop->width); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_IN_HEIGHT, + crop->height); + + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_OUT_WIDTH, + scale->width); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_OUT_HEIGHT, + scale->height); + + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_HFILT_TINC, + h_scale); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_VFILT_TINC, + v_scale); + + /* Select the scaler coefficients bank to use. */ + h_bank = mali_c55_rsz_calculate_bank(mali_c55, crop->width, + scale->width); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_HFILT_COEF, + h_bank); + + v_bank = mali_c55_rsz_calculate_bank(mali_c55, crop->height, + scale->height); + mali_c55_cap_dev_write(rsz->cap_dev, MALI_C55_REG_SCALER_VFILT_COEF, + v_bank); + + return 0; +} + +static void mali_c55_rsz_program(struct mali_c55_resizer *rsz, + struct v4l2_subdev_state *state) +{ + struct mali_c55 *mali_c55 = rsz->mali_c55; + u32 bypass = 0; + + /* Verify if cropping and scaling should be enabled. */ + bypass |= mali_c55_rsz_program_crop(rsz, state); + bypass |= mali_c55_rsz_program_resizer(rsz, state); + + mali_c55_ctx_update_bits(mali_c55, rsz->id == MALI_C55_RSZ_FR ? + MALI_C55_REG_FR_BYPASS : MALI_C55_REG_DS_BYPASS, + MALI_C55_BYPASS_CROP | MALI_C55_BYPASS_SCALER, + bypass); +} + +/* + * Inspect the routing table to know which of the two (mutually exclusive) + * routes is enabled and return the sink pad id of the active route. + */ +static unsigned int mali_c55_rsz_get_active_sink(struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_krouting *routing = &state->routing; + struct v4l2_subdev_route *route; + + /* A single route is enabled at a time. */ + for_each_active_route(routing, route) + return route->sink_pad; + + return MALI_C55_RSZ_SINK_PAD; +} + +/* + * When operating in bypass mode, the ISP takes input in a 20-bit format, but + * can only output 16-bit RAW bayer data (with the 4 least significant bits from + * the input being lost). Return the 16-bit version of the 20-bit input formats. + */ +static u32 mali_c55_rsz_shift_mbus_code(u32 mbus_code) +{ + const struct mali_c55_isp_format_info *fmt = + mali_c55_isp_get_mbus_config_by_code(mbus_code); + + if (!fmt) + return -EINVAL; + + return fmt->shifted_code; +} + +static int __mali_c55_rsz_set_routing(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + const struct v4l2_subdev_krouting *routing) +{ + struct mali_c55_resizer *rsz = sd_to_mali_c55_rsz(sd); + unsigned int active_sink = UINT_MAX; + struct v4l2_mbus_framefmt *src_fmt; + struct v4l2_subdev_route *route; + unsigned int active_routes = 0; + struct v4l2_mbus_framefmt *fmt; + int ret; + + ret = v4l2_subdev_routing_validate(sd, routing, 0); + if (ret) + return ret; + + /* Only a single route can be enabled at a time. */ + for_each_active_route(routing, route) { + if (++active_routes > 1) { + dev_dbg(rsz->mali_c55->dev, + "Only one route can be active"); + return -EINVAL; + } + + active_sink = route->sink_pad; + } + if (active_sink == UINT_MAX) { + dev_dbg(rsz->mali_c55->dev, "One route has to be active"); + return -EINVAL; + } + + ret = v4l2_subdev_set_routing(sd, state, routing); + if (ret) { + dev_dbg(rsz->mali_c55->dev, "Failed to set routing\n"); + return ret; + } + + fmt = v4l2_subdev_state_get_format(state, active_sink, 0); + fmt->width = MALI_C55_DEFAULT_WIDTH; + fmt->height = MALI_C55_DEFAULT_HEIGHT; + fmt->colorspace = V4L2_COLORSPACE_SRGB; + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); + fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(false, + fmt->colorspace, + fmt->ycbcr_enc); + fmt->field = V4L2_FIELD_NONE; + + if (active_sink == MALI_C55_RSZ_SINK_PAD) { + struct v4l2_rect *crop, *compose; + + fmt->code = MEDIA_BUS_FMT_RGB121212_1X36; + + crop = v4l2_subdev_state_get_crop(state, active_sink, 0); + compose = v4l2_subdev_state_get_compose(state, active_sink, 0); + + crop->left = 0; + crop->top = 0; + crop->width = MALI_C55_DEFAULT_WIDTH; + crop->height = MALI_C55_DEFAULT_HEIGHT; + + *compose = *crop; + } else { + fmt->code = MEDIA_BUS_FMT_SRGGB20_1X20; + } + + /* Propagate the format to the source pad */ + src_fmt = v4l2_subdev_state_get_format(state, MALI_C55_RSZ_SOURCE_PAD, + 0); + *src_fmt = *fmt; + + /* In the event this is the bypass pad the mbus code needs correcting */ + if (active_sink == MALI_C55_RSZ_SINK_BYPASS_PAD) + src_fmt->code = mali_c55_rsz_shift_mbus_code(src_fmt->code); + + return 0; +} + +static int mali_c55_rsz_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_mbus_code_enum *code) +{ + const struct mali_c55_isp_format_info *fmt; + struct v4l2_mbus_framefmt *sink_fmt; + u32 sink_pad; + + switch (code->pad) { + case MALI_C55_RSZ_SINK_PAD: + if (code->index) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_RGB121212_1X36; + + return 0; + case MALI_C55_RSZ_SOURCE_PAD: + sink_pad = mali_c55_rsz_get_active_sink(state); + sink_fmt = v4l2_subdev_state_get_format(state, sink_pad, 0); + + /* + * If the active route is from the Bypass sink pad, then the + * source pad is a simple passthrough of the sink format, + * downshifted to 16-bits. + */ + + if (sink_pad == MALI_C55_RSZ_SINK_BYPASS_PAD) { + if (code->index) + return -EINVAL; + + code->code = mali_c55_rsz_shift_mbus_code(sink_fmt->code); + if (!code->code) + return -EINVAL; + + return 0; + } + + /* + * If the active route is from the non-bypass sink then we can + * select either RGB or conversion to YUV. + */ + + if (code->index >= ARRAY_SIZE(rsz_non_bypass_src_fmts)) + return -EINVAL; + + code->code = rsz_non_bypass_src_fmts[code->index]; + + return 0; + case MALI_C55_RSZ_SINK_BYPASS_PAD: + fmt = mali_c55_isp_get_mbus_config_by_index(code->index); + if (fmt) { + code->code = fmt->code; + return 0; + } + + break; + } + + return -EINVAL; +} + +static int mali_c55_rsz_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_frame_size_enum *fse) +{ + const struct mali_c55_isp_format_info *fmt; + struct v4l2_mbus_framefmt *sink_fmt; + struct v4l2_rect *compose; + u32 sink_pad; + + switch (fse->pad) { + case MALI_C55_RSZ_SINK_PAD: + if (fse->index || fse->code != MEDIA_BUS_FMT_RGB121212_1X36) + return -EINVAL; + + fse->max_width = MALI_C55_MAX_WIDTH; + fse->max_height = MALI_C55_MAX_HEIGHT; + fse->min_width = MALI_C55_MIN_WIDTH; + fse->min_height = MALI_C55_MIN_HEIGHT; + + return 0; + case MALI_C55_RSZ_SOURCE_PAD: + sink_pad = mali_c55_rsz_get_active_sink(state); + sink_fmt = v4l2_subdev_state_get_format(state, sink_pad, 0); + + if (sink_pad == MALI_C55_RSZ_SINK_BYPASS_PAD) { + if (fse->index) + return -EINVAL; + + fmt = mali_c55_isp_get_mbus_config_by_shifted_code(fse->code); + if (!fmt) + return -EINVAL; + + fse->min_width = sink_fmt->width; + fse->max_width = sink_fmt->width; + fse->min_height = sink_fmt->height; + fse->max_height = sink_fmt->height; + + return 0; + } + + if ((fse->code != MEDIA_BUS_FMT_RGB121212_1X36 && + fse->code != MEDIA_BUS_FMT_YUV10_1X30) || fse->index > 1) + return -EINVAL; + + compose = v4l2_subdev_state_get_compose(state, + MALI_C55_RSZ_SINK_PAD, + 0); + + fse->min_width = compose->width; + fse->max_width = compose->width; + fse->min_height = compose->height; + fse->max_height = compose->height; + + return 0; + case MALI_C55_RSZ_SINK_BYPASS_PAD: + fmt = mali_c55_isp_get_mbus_config_by_code(fse->code); + if (fse->index || !fmt) + return -EINVAL; + + fse->max_width = MALI_C55_MAX_WIDTH; + fse->max_height = MALI_C55_MAX_HEIGHT; + fse->min_width = MALI_C55_MIN_WIDTH; + fse->min_height = MALI_C55_MIN_HEIGHT; + + return 0; + } + + return -EINVAL; +} + +static int mali_c55_rsz_set_sink_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *fmt = &format->format; + struct v4l2_mbus_framefmt *sink_fmt; + unsigned int active_sink; + struct v4l2_rect *rect; + + sink_fmt = v4l2_subdev_state_get_format(state, format->pad, 0); + + /* + * Clamp to min/max and then reset crop and compose rectangles to the + * newly applied size. + */ + sink_fmt->width = clamp_t(unsigned int, fmt->width, + MALI_C55_MIN_WIDTH, MALI_C55_MAX_WIDTH); + sink_fmt->height = clamp_t(unsigned int, fmt->height, + MALI_C55_MIN_HEIGHT, MALI_C55_MAX_HEIGHT); + + /* + * Make sure the media bus code for the bypass pad is one of the + * supported ISP input media bus codes. Default it to SRGGB otherwise. + */ + if (format->pad == MALI_C55_RSZ_SINK_BYPASS_PAD) + sink_fmt->code = mali_c55_isp_get_mbus_config_by_code(fmt->code) ? + fmt->code : MEDIA_BUS_FMT_SRGGB20_1X20; + + *fmt = *sink_fmt; + + if (format->pad == MALI_C55_RSZ_SINK_PAD) { + rect = v4l2_subdev_state_get_crop(state, format->pad); + rect->left = 0; + rect->top = 0; + rect->width = fmt->width; + rect->height = fmt->height; + + rect = v4l2_subdev_state_get_compose(state, format->pad); + rect->left = 0; + rect->top = 0; + rect->width = fmt->width; + rect->height = fmt->height; + } + + /* If format->pad is routed to the source pad, propagate the format. */ + active_sink = mali_c55_rsz_get_active_sink(state); + if (active_sink == format->pad) { + /* If the bypass route is used, downshift the code to 16bpp. */ + if (active_sink == MALI_C55_RSZ_SINK_BYPASS_PAD) + fmt->code = mali_c55_rsz_shift_mbus_code(fmt->code); + + *v4l2_subdev_state_get_format(state, + MALI_C55_RSZ_SOURCE_PAD, 0) = *fmt; + } + + return 0; +} + +static int mali_c55_rsz_set_source_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *fmt = &format->format; + struct v4l2_mbus_framefmt *sink_fmt, *src_fmt; + unsigned int active_sink; + + active_sink = mali_c55_rsz_get_active_sink(state); + sink_fmt = v4l2_subdev_state_get_format(state, active_sink, 0); + src_fmt = v4l2_subdev_state_get_format(state, MALI_C55_RSZ_SOURCE_PAD); + + if (active_sink == MALI_C55_RSZ_SINK_PAD) { + /* + * Regular processing pipe: RGB121212 can be color-space + * converted to YUV101010. + */ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(rsz_non_bypass_src_fmts); i++) { + if (fmt->code == rsz_non_bypass_src_fmts[i]) + break; + } + + src_fmt->code = i == ARRAY_SIZE(rsz_non_bypass_src_fmts) ? + MEDIA_BUS_FMT_RGB121212_1X36 : fmt->code; + } else { + /* + * Bypass pipe: the source format is the same as the bypass + * sink pad downshifted to 16bpp. + */ + fmt->code = mali_c55_rsz_shift_mbus_code(sink_fmt->code); + } + + *fmt = *src_fmt; + + return 0; +} + +static int mali_c55_rsz_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + /* + * On sink pads fmt is either fixed for the 'regular' processing + * pad or a RAW format or 20-bit wide RGB/YUV format for the FR bypass + * pad. + * + * On source pad sizes are the result of crop+compose on the sink + * pad sizes, while the format depends on the active route. + */ + + if (format->pad == MALI_C55_RSZ_SINK_PAD || + format->pad == MALI_C55_RSZ_SINK_BYPASS_PAD) + return mali_c55_rsz_set_sink_fmt(sd, state, format); + + return mali_c55_rsz_set_source_fmt(sd, state, format); +} + +static int mali_c55_rsz_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) +{ + if (sel->pad != MALI_C55_RSZ_SINK_PAD) + return -EINVAL; + + if (sel->target != V4L2_SEL_TGT_CROP && + sel->target != V4L2_SEL_TGT_COMPOSE) + return -EINVAL; + + sel->r = sel->target == V4L2_SEL_TGT_CROP + ? *v4l2_subdev_state_get_crop(state, MALI_C55_RSZ_SINK_PAD) + : *v4l2_subdev_state_get_compose(state, MALI_C55_RSZ_SINK_PAD); + + return 0; +} + +static int mali_c55_rsz_set_crop(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) +{ + struct mali_c55_resizer *rsz = sd_to_mali_c55_rsz(sd); + struct v4l2_mbus_framefmt *sink_fmt, *src_fmt; + struct v4l2_rect *crop, *compose; + + sink_fmt = v4l2_subdev_state_get_format(state, MALI_C55_RSZ_SINK_PAD); + crop = v4l2_subdev_state_get_crop(state, MALI_C55_RSZ_SINK_PAD); + compose = v4l2_subdev_state_get_compose(state, MALI_C55_RSZ_SINK_PAD); + + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && + v4l2_subdev_is_streaming(sd)) { + /* + * At runtime the compose rectangle and output size cannot be + * changed so we need to clamp the crop rectangle such that the + * compose rectangle can fit within it. + */ + crop->left = clamp_t(unsigned int, sel->r.left, 0, + sink_fmt->width - compose->width); + crop->top = clamp_t(unsigned int, sel->r.top, 0, + sink_fmt->height - compose->height); + crop->width = clamp_t(unsigned int, sel->r.width, compose->width, + sink_fmt->width - crop->left); + crop->height = clamp_t(unsigned int, sel->r.height, compose->height, + sink_fmt->height - crop->top); + + mali_c55_rsz_program(rsz, state); + } else { + /* + * If we're not streaming we can utilise the ISP's full range + * and simply need to propagate the selected rectangle to the + * compose target and source pad format. + */ + crop->left = clamp_t(unsigned int, sel->r.left, 0, + sink_fmt->width); + crop->top = clamp_t(unsigned int, sel->r.top, 0, + sink_fmt->height); + crop->width = clamp_t(unsigned int, sel->r.width, + MALI_C55_MIN_WIDTH, + sink_fmt->width - crop->left); + crop->height = clamp_t(unsigned int, sel->r.height, + MALI_C55_MIN_HEIGHT, + sink_fmt->height - crop->top); + + *compose = *crop; + + src_fmt = v4l2_subdev_state_get_format(state, + MALI_C55_RSZ_SOURCE_PAD); + src_fmt->width = compose->width; + src_fmt->height = compose->height; + } + + sel->r = *crop; + return 0; +} + +static int mali_c55_rsz_set_compose(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) +{ + struct mali_c55_resizer *rsz = sd_to_mali_c55_rsz(sd); + struct mali_c55 *mali_c55 = rsz->mali_c55; + struct v4l2_mbus_framefmt *src_fmt; + struct v4l2_rect *compose, *crop; + + /* + * We cannot change the compose rectangle during streaming, as that + * would require a change in the output buffer size. + */ + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && + v4l2_subdev_is_streaming(sd)) + return -EBUSY; + + /* + * In the FR pipe, the scaler is an optional component that may not be + * fitted. + */ + if (rsz->id == MALI_C55_RSZ_FR && + !(mali_c55->capabilities & MALI_C55_GPS_FRSCALER_FITTED)) + return -EINVAL; + + compose = v4l2_subdev_state_get_compose(state, MALI_C55_RSZ_SINK_PAD); + crop = v4l2_subdev_state_get_crop(state, MALI_C55_RSZ_SINK_PAD); + + compose->left = 0; + compose->top = 0; + compose->width = clamp_t(unsigned int, sel->r.width, crop->width / 8, + crop->width); + compose->height = clamp_t(unsigned int, sel->r.height, crop->height / 8, + crop->height); + + sel->r = *compose; + + /* + * We need to be sure to propagate the compose rectangle size to the + * source pad format. + */ + src_fmt = v4l2_subdev_state_get_format(state, MALI_C55_RSZ_SOURCE_PAD); + src_fmt->width = compose->width; + src_fmt->height = compose->height; + + return 0; +} + +static int mali_c55_rsz_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) +{ + if (sel->pad != MALI_C55_RSZ_SINK_PAD) + return -EINVAL; + + if (sel->target == V4L2_SEL_TGT_CROP) + return mali_c55_rsz_set_crop(sd, state, sel); + + if (sel->target == V4L2_SEL_TGT_COMPOSE) + return mali_c55_rsz_set_compose(sd, state, sel); + + return -EINVAL; +} + +static int mali_c55_rsz_set_routing(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + enum v4l2_subdev_format_whence which, + struct v4l2_subdev_krouting *routing) +{ + if (which == V4L2_SUBDEV_FORMAT_ACTIVE && + media_entity_is_streaming(&sd->entity)) + return -EBUSY; + + return __mali_c55_rsz_set_routing(sd, state, routing); +} + +static int mali_c55_rsz_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct mali_c55_resizer *rsz = sd_to_mali_c55_rsz(sd); + struct mali_c55 *mali_c55 = rsz->mali_c55; + unsigned int sink_pad; + + sink_pad = mali_c55_rsz_get_active_sink(state); + if (sink_pad == MALI_C55_RSZ_SINK_BYPASS_PAD) { + /* Bypass FR pipe processing if the bypass route is active. */ + mali_c55_ctx_update_bits(mali_c55, MALI_C55_REG_ISP_RAW_BYPASS, + MALI_C55_ISP_RAW_BYPASS_FR_BYPASS_MASK, + MALI_C55_ISP_RAW_BYPASS_RAW_FR_BYPASS); + return 0; + } + + /* Disable bypass and use regular processing. */ + mali_c55_ctx_update_bits(mali_c55, MALI_C55_REG_ISP_RAW_BYPASS, + MALI_C55_ISP_RAW_BYPASS_FR_BYPASS_MASK, 0); + mali_c55_rsz_program(rsz, state); + + return 0; +} + +static int mali_c55_rsz_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + return 0; +} + +static const struct v4l2_subdev_pad_ops mali_c55_resizer_pad_ops = { + .enum_mbus_code = mali_c55_rsz_enum_mbus_code, + .enum_frame_size = mali_c55_rsz_enum_frame_size, + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = mali_c55_rsz_set_fmt, + .get_selection = mali_c55_rsz_get_selection, + .set_selection = mali_c55_rsz_set_selection, + .set_routing = mali_c55_rsz_set_routing, + .enable_streams = mali_c55_rsz_enable_streams, + .disable_streams = mali_c55_rsz_disable_streams, +}; + +static const struct v4l2_subdev_ops mali_c55_resizer_ops = { + .pad = &mali_c55_resizer_pad_ops, +}; + +static int mali_c55_rsz_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + struct mali_c55_resizer *rsz = sd_to_mali_c55_rsz(sd); + struct v4l2_subdev_route routes[2] = { + { + .sink_pad = MALI_C55_RSZ_SINK_PAD, + .source_pad = MALI_C55_RSZ_SOURCE_PAD, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, { + .sink_pad = MALI_C55_RSZ_SINK_BYPASS_PAD, + .source_pad = MALI_C55_RSZ_SOURCE_PAD, + }, + }; + struct v4l2_subdev_krouting routing = { + .num_routes = rsz->num_routes, + .routes = routes, + }; + + return __mali_c55_rsz_set_routing(sd, state, &routing); +} + +static const struct v4l2_subdev_internal_ops mali_c55_resizer_internal_ops = { + .init_state = mali_c55_rsz_init_state, +}; + +static int mali_c55_register_resizer(struct mali_c55 *mali_c55, + unsigned int index) +{ + struct mali_c55_resizer *rsz = &mali_c55->resizers[index]; + struct v4l2_subdev *sd = &rsz->sd; + unsigned int num_pads; + int ret; + + rsz->id = index; + v4l2_subdev_init(sd, &mali_c55_resizer_ops); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_STREAMS; + sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; + sd->internal_ops = &mali_c55_resizer_internal_ops; + + rsz->pads[MALI_C55_RSZ_SINK_PAD].flags = MEDIA_PAD_FL_SINK; + rsz->pads[MALI_C55_RSZ_SOURCE_PAD].flags = MEDIA_PAD_FL_SOURCE; + + if (rsz->id == MALI_C55_RSZ_FR) { + num_pads = MALI_C55_RSZ_NUM_PADS; + rsz->num_routes = 2; + + rsz->pads[MALI_C55_RSZ_SINK_BYPASS_PAD].flags = + MEDIA_PAD_FL_SINK; + + snprintf(sd->name, sizeof(sd->name), "%s resizer fr", + MALI_C55_DRIVER_NAME); + + } else { + num_pads = MALI_C55_RSZ_NUM_PADS - 1; + rsz->num_routes = 1; + + snprintf(sd->name, sizeof(sd->name), "%s resizer ds", + MALI_C55_DRIVER_NAME); + } + + ret = media_entity_pads_init(&sd->entity, num_pads, rsz->pads); + if (ret) + return ret; + + ret = v4l2_subdev_init_finalize(sd); + if (ret) + goto err_media_cleanup; + + ret = v4l2_device_register_subdev(&mali_c55->v4l2_dev, sd); + if (ret) + goto err_subdev_cleanup; + + rsz->cap_dev = &mali_c55->cap_devs[index]; + rsz->mali_c55 = mali_c55; + + return 0; + +err_subdev_cleanup: + v4l2_subdev_cleanup(sd); +err_media_cleanup: + media_entity_cleanup(&sd->entity); + + return ret; +} + +static void mali_c55_unregister_resizer(struct mali_c55_resizer *rsz) +{ + if (!rsz->mali_c55) + return; + + v4l2_device_unregister_subdev(&rsz->sd); + v4l2_subdev_cleanup(&rsz->sd); + media_entity_cleanup(&rsz->sd.entity); +} + +int mali_c55_register_resizers(struct mali_c55 *mali_c55) +{ + int ret; + + ret = mali_c55_register_resizer(mali_c55, MALI_C55_RSZ_FR); + if (ret) + return ret; + + if (mali_c55->capabilities & MALI_C55_GPS_DS_PIPE_FITTED) { + ret = mali_c55_register_resizer(mali_c55, MALI_C55_RSZ_DS); + if (ret) + goto err_unregister_fr; + } + + return 0; + +err_unregister_fr: + mali_c55_unregister_resizer(&mali_c55->resizers[MALI_C55_RSZ_FR]); + + return ret; +} + +void mali_c55_unregister_resizers(struct mali_c55 *mali_c55) +{ + for (unsigned int i = 0; i < MALI_C55_NUM_RSZS; i++) + mali_c55_unregister_resizer(&mali_c55->resizers[i]); +} |