13 #define DCSS_SCALER_CTRL			0x00
14 #define   SCALER_EN				BIT(0)
18 #define DCSS_SCALER_OFIFO_CTRL			0x04
19 #define   OFIFO_LOW_THRES_POS			0
20 #define   OFIFO_LOW_THRES_MASK			GENMASK(9, 0)
29 #define DCSS_SCALER_SDATA_CTRL			0x08
30 #define   YUV_EN				BIT(0)
35 #define DCSS_SCALER_BIT_DEPTH			0x0C
36 #define   LUM_BIT_DEPTH_POS			0
37 #define   LUM_BIT_DEPTH_MASK			GENMASK(1, 0)
40 #define DCSS_SCALER_SRC_FORMAT			0x10
41 #define DCSS_SCALER_DST_FORMAT			0x14
42 #define   FORMAT_MASK				GENMASK(1, 0)
43 #define DCSS_SCALER_SRC_LUM_RES			0x18
44 #define DCSS_SCALER_SRC_CHR_RES			0x1C
45 #define DCSS_SCALER_DST_LUM_RES			0x20
46 #define DCSS_SCALER_DST_CHR_RES			0x24
47 #define   WIDTH_POS				0
48 #define   WIDTH_MASK				GENMASK(11, 0)
51 #define DCSS_SCALER_V_LUM_START			0x48
52 #define   V_START_MASK				GENMASK(15, 0)
53 #define DCSS_SCALER_V_LUM_INC			0x4C
54 #define   V_INC_MASK				GENMASK(15, 0)
55 #define DCSS_SCALER_H_LUM_START			0x50
56 #define   H_START_MASK				GENMASK(18, 0)
57 #define DCSS_SCALER_H_LUM_INC			0x54
58 #define   H_INC_MASK				GENMASK(15, 0)
59 #define DCSS_SCALER_V_CHR_START			0x58
60 #define DCSS_SCALER_V_CHR_INC			0x5C
61 #define DCSS_SCALER_H_CHR_START			0x60
62 #define DCSS_SCALER_H_CHR_INC			0x64
63 #define DCSS_SCALER_COEF_VLUM			0x80
64 #define DCSS_SCALER_COEF_HLUM			0x140
65 #define DCSS_SCALER_COEF_VCHR			0x200
66 #define DCSS_SCALER_COEF_HCHR			0x300
134 	if ((temp >= 0 && B >= 0) || (temp < 0 && B < 0))  in div_q()
167  * @fc_q: fixed-point cutoff frequency normalized to range [0, 1]
183 		for (phase = 0; phase < PSC_STORED_PHASES; phase++) {  in dcss_scaler_gaussian_filter()
184 			coef[phase][0] = 0;  in dcss_scaler_gaussian_filter()
185 			coef[phase][PSC_NUM_TAPS - 1] = 0;  in dcss_scaler_gaussian_filter()
203 	for (i = 0; i < mid; i++) {  in dcss_scaler_gaussian_filter()
223 	coef[phase_cnt & PSC_PHASE_MASK][tap_cnt1 >> PSC_BITS_FOR_PHASE] = 0;  in dcss_scaler_gaussian_filter()
225 	/* override phase 0 with identity filter if specified */  in dcss_scaler_gaussian_filter()
227 		for (i = 0; i < PSC_NUM_TAPS; i++)  in dcss_scaler_gaussian_filter()
228 			coef[0][i] = i == (PSC_NUM_TAPS >> 1) ?  in dcss_scaler_gaussian_filter()
229 						(1 << PSC_COEFF_PRECISION) : 0;  in dcss_scaler_gaussian_filter()
232 	for (phase = 0; phase < PSC_STORED_PHASES; phase++) {  in dcss_scaler_gaussian_filter()
233 		int sum = 0;  in dcss_scaler_gaussian_filter()
236 		for (i = 0; i < PSC_NUM_TAPS; i++)  in dcss_scaler_gaussian_filter()
238 		for (i = 0; i < PSC_NUM_TAPS; i++) {  in dcss_scaler_gaussian_filter()
253 	for (i = 0; i < PSC_STORED_PHASES; i++)  in dcss_scaler_nearest_neighbor_filter()
254 		for (j = 0; j < PSC_NUM_TAPS; j++)  in dcss_scaler_nearest_neighbor_filter()
256 						(1 << PSC_COEFF_PRECISION) : 0;  in dcss_scaler_nearest_neighbor_filter()
264  * @use_5_taps: 0 for 7 taps per phase, 1 for 5 taps
300 	for (i = 0; i < 3; i++) {  in dcss_scaler_ch_init_all()
303 		ch->base_ofs = scaler_base + i * 0x400;  in dcss_scaler_ch_init_all()
314 	return 0;  in dcss_scaler_ch_init_all()
333 	return 0;  in dcss_scaler_init()
340 	for (ch_no = 0; ch_no < 3; ch_no++) {  in dcss_scaler_exit()
343 		dcss_writel(0, ch->base_reg + DCSS_SCALER_CTRL);  in dcss_scaler_exit()
352 	scaler_ctrl = en ? SCALER_EN | REPEAT_EN : 0;  in dcss_scaler_ch_enable()
366 	ch->sdata_ctrl |= en ? YUV_EN : 0;  in dcss_scaler_yuv_enable()
372 	ch->sdata_ctrl |= en ? RTRAM_8LINES : 0;  in dcss_scaler_rtr_8lines_enable()
379 	val = depth == 30 ? 2 : 0;  in dcss_scaler_bit_depth_set()
394 	PSC_LOC_HORZ_0_VERT_1_OVER_4 = 0,
489 	c_vstart = 0;  in dcss_scaler_fractions_set()
490 	c_hstart = 0;  in dcss_scaler_fractions_set()
548 	dcss_scaler_write(ch, 0, DCSS_SCALER_V_LUM_START);  in dcss_scaler_fractions_set()
551 	dcss_scaler_write(ch, 0, DCSS_SCALER_H_LUM_START);  in dcss_scaler_fractions_set()
567 	return 0;  in dcss_scaler_get_min_max_ratios()
576 	for (i = 0; i < PSC_STORED_PHASES; i++) {  in dcss_scaler_program_5_coef_set()
577 		dcss_scaler_write(ch, ((coef[i][1] & 0xfff) << 16 |  in dcss_scaler_program_5_coef_set()
578 				       (coef[i][2] & 0xfff) << 4  |  in dcss_scaler_program_5_coef_set()
579 				       (coef[i][3] & 0xf00) >> 8),  in dcss_scaler_program_5_coef_set()
581 		dcss_scaler_write(ch, ((coef[i][3] & 0x0ff) << 20 |  in dcss_scaler_program_5_coef_set()
582 				       (coef[i][4] & 0xfff) << 8  |  in dcss_scaler_program_5_coef_set()
583 				       (coef[i][5] & 0xff0) >> 4),  in dcss_scaler_program_5_coef_set()
584 				  base_addr + 0x40 + i * sizeof(u32));  in dcss_scaler_program_5_coef_set()
585 		dcss_scaler_write(ch, ((coef[i][5] & 0x00f) << 24),  in dcss_scaler_program_5_coef_set()
586 				  base_addr + 0x80 + i * sizeof(u32));  in dcss_scaler_program_5_coef_set()
592 		dcss_scaler_write(ch, ((coef[phase][5] & 0xfff) << 16 |  in dcss_scaler_program_5_coef_set()
593 				       (coef[phase][4] & 0xfff) << 4  |  in dcss_scaler_program_5_coef_set()
594 				       (coef[phase][3] & 0xf00) >> 8),  in dcss_scaler_program_5_coef_set()
596 		dcss_scaler_write(ch, ((coef[phase][3] & 0x0ff) << 20 |  in dcss_scaler_program_5_coef_set()
597 				       (coef[phase][2] & 0xfff) << 8  |  in dcss_scaler_program_5_coef_set()
598 				       (coef[phase][1] & 0xff0) >> 4),  in dcss_scaler_program_5_coef_set()
599 				  base_addr + 0x40 + i * sizeof(u32));  in dcss_scaler_program_5_coef_set()
600 		dcss_scaler_write(ch, ((coef[phase][1] & 0x00f) << 24),  in dcss_scaler_program_5_coef_set()
601 				  base_addr + 0x80 + i * sizeof(u32));  in dcss_scaler_program_5_coef_set()
611 	for (i = 0; i < PSC_STORED_PHASES; i++) {  in dcss_scaler_program_7_coef_set()
612 		dcss_scaler_write(ch, ((coef[i][0] & 0xfff) << 16 |  in dcss_scaler_program_7_coef_set()
613 				       (coef[i][1] & 0xfff) << 4  |  in dcss_scaler_program_7_coef_set()
614 				       (coef[i][2] & 0xf00) >> 8),  in dcss_scaler_program_7_coef_set()
616 		dcss_scaler_write(ch, ((coef[i][2] & 0x0ff) << 20 |  in dcss_scaler_program_7_coef_set()
617 				       (coef[i][3] & 0xfff) << 8  |  in dcss_scaler_program_7_coef_set()
618 				       (coef[i][4] & 0xff0) >> 4),  in dcss_scaler_program_7_coef_set()
619 				  base_addr + 0x40 + i * sizeof(u32));  in dcss_scaler_program_7_coef_set()
620 		dcss_scaler_write(ch, ((coef[i][4] & 0x00f) << 24 |  in dcss_scaler_program_7_coef_set()
621 				       (coef[i][5] & 0xfff) << 12 |  in dcss_scaler_program_7_coef_set()
622 				       (coef[i][6] & 0xfff)),  in dcss_scaler_program_7_coef_set()
623 				  base_addr + 0x80 + i * sizeof(u32));  in dcss_scaler_program_7_coef_set()
629 		dcss_scaler_write(ch, ((coef[phase][6] & 0xfff) << 16 |  in dcss_scaler_program_7_coef_set()
630 				       (coef[phase][5] & 0xfff) << 4  |  in dcss_scaler_program_7_coef_set()
631 				       (coef[phase][4] & 0xf00) >> 8),  in dcss_scaler_program_7_coef_set()
633 		dcss_scaler_write(ch, ((coef[phase][4] & 0x0ff) << 20 |  in dcss_scaler_program_7_coef_set()
634 				       (coef[phase][3] & 0xfff) << 8  |  in dcss_scaler_program_7_coef_set()
635 				       (coef[phase][2] & 0xff0) >> 4),  in dcss_scaler_program_7_coef_set()
636 				  base_addr + 0x40 + i * sizeof(u32));  in dcss_scaler_program_7_coef_set()
637 		dcss_scaler_write(ch, ((coef[phase][2] & 0x00f) << 24 |  in dcss_scaler_program_7_coef_set()
638 				       (coef[phase][1] & 0xfff) << 12 |  in dcss_scaler_program_7_coef_set()
639 				       (coef[phase][0] & 0xfff)),  in dcss_scaler_program_7_coef_set()
640 				  base_addr + 0x80 + i * sizeof(u32));  in dcss_scaler_program_7_coef_set()
684 				  (src_xres == dst_xres) && (ch->c_hstart == 0),  in dcss_scaler_yuv_coef_set()
691 				  (src_yres == dst_yres) && (ch->c_vstart == 0),  in dcss_scaler_yuv_coef_set()
734 		a2r10g10b10_format = 0;  in dcss_scaler_set_rgb10_order()
753 		a2r10g10b10_format = 0;  in dcss_scaler_set_rgb10_order()
774 	unsigned int pixel_depth = 0;  in dcss_scaler_setup()
829 	for (chnum = 0; chnum < 3; chnum++) {  in dcss_scaler_write_sclctrl()