xref: /linux/sound/soc/codecs/lm49453.h (revision 63307d015b91e626c97bb82e88054af3d0b74643)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * lm49453.h  -  LM49453 ALSA Soc Audio drive
4  *
5  * Copyright (c) 2012  Texas Instruments, Inc
6  */
7 
8 #ifndef _LM49453_H
9 #define _LM49453_H
10 
11 #include <linux/bitops.h>
12 
13 /* LM49453_P0 register space for page0 */
14 #define LM49453_P0_PMC_SETUP_REG			0x00
15 #define LM49453_P0_PLL_CLK_SEL1_REG			0x01
16 #define LM49453_P0_PLL_CLK_SEL2_REG			0x02
17 #define LM49453_P0_PMC_CLK_DIV_REG			0x03
18 #define LM49453_P0_HSDET_CLK_DIV_REG			0x04
19 #define LM49453_P0_DMIC_CLK_DIV_REG			0x05
20 #define LM49453_P0_ADC_CLK_DIV_REG			0x06
21 #define LM49453_P0_DAC_OT_CLK_DIV_REG			0x07
22 #define LM49453_P0_PLL_HF_M_REG				0x08
23 #define LM49453_P0_PLL_LF_M_REG				0x09
24 #define LM49453_P0_PLL_NL_REG				0x0A
25 #define LM49453_P0_PLL_N_MODL_REG			0x0B
26 #define LM49453_P0_PLL_N_MODH_REG			0x0C
27 #define LM49453_P0_PLL_P1_REG				0x0D
28 #define LM49453_P0_PLL_P2_REG				0x0E
29 #define LM49453_P0_FLL_REF_FREQL_REG			0x0F
30 #define LM49453_P0_FLL_REF_FREQH_REG			0x10
31 #define LM49453_P0_VCO_TARGETLL_REG			0x11
32 #define LM49453_P0_VCO_TARGETLH_REG			0x12
33 #define LM49453_P0_VCO_TARGETHL_REG			0x13
34 #define LM49453_P0_VCO_TARGETHH_REG			0x14
35 #define LM49453_P0_PLL_CONFIG_REG			0x15
36 #define LM49453_P0_DAC_CLK_SEL_REG			0x16
37 #define LM49453_P0_DAC_HP_CLK_DIV_REG			0x17
38 
39 /* Analog Mixer Input Stages */
40 #define LM49453_P0_MICL_REG				0x20
41 #define LM49453_P0_MICR_REG				0x21
42 #define LM49453_P0_EP_REG				0x24
43 #define LM49453_P0_DIS_PKVL_FB_REG			0x25
44 
45 /* Analog Mixer Output Stages */
46 #define LM49453_P0_ANALOG_MIXER_ADC_REG			0x2E
47 
48 /*ADC or DAC */
49 #define LM49453_P0_ADC_DSP_REG				0x30
50 #define LM49453_P0_DAC_DSP_REG				0x31
51 
52 /* EFFECTS ENABLES */
53 #define LM49453_P0_ADC_FX_ENABLES_REG			0x33
54 
55 /* GPIO */
56 #define LM49453_P0_GPIO1_REG				0x38
57 #define LM49453_P0_GPIO2_REG				0x39
58 #define LM49453_P0_GPIO3_REG				0x3A
59 #define LM49453_P0_HAP_CTL_REG				0x3B
60 #define LM49453_P0_HAP_FREQ_PROG_LEFTL_REG		0x3C
61 #define LM49453_P0_HAP_FREQ_PROG_LEFTH_REG		0x3D
62 #define LM49453_P0_HAP_FREQ_PROG_RIGHTL_REG		0x3E
63 #define LM49453_P0_HAP_FREQ_PROG_RIGHTH_REG		0x3F
64 
65 /* DIGITAL MIXER */
66 #define LM49453_P0_DMIX_CLK_SEL_REG			0x40
67 #define LM49453_P0_PORT1_RX_LVL1_REG			0x41
68 #define LM49453_P0_PORT1_RX_LVL2_REG			0x42
69 #define LM49453_P0_PORT2_RX_LVL_REG			0x43
70 #define LM49453_P0_PORT1_TX1_REG			0x44
71 #define LM49453_P0_PORT1_TX2_REG			0x45
72 #define LM49453_P0_PORT1_TX3_REG			0x46
73 #define LM49453_P0_PORT1_TX4_REG			0x47
74 #define LM49453_P0_PORT1_TX5_REG			0x48
75 #define LM49453_P0_PORT1_TX6_REG			0x49
76 #define LM49453_P0_PORT1_TX7_REG			0x4A
77 #define LM49453_P0_PORT1_TX8_REG			0x4B
78 #define LM49453_P0_PORT2_TX1_REG			0x4C
79 #define LM49453_P0_PORT2_TX2_REG			0x4D
80 #define LM49453_P0_STN_SEL_REG				0x4F
81 #define LM49453_P0_DACHPL1_REG				0x50
82 #define LM49453_P0_DACHPL2_REG				0x51
83 #define LM49453_P0_DACHPR1_REG				0x52
84 #define LM49453_P0_DACHPR2_REG				0x53
85 #define LM49453_P0_DACLOL1_REG				0x54
86 #define LM49453_P0_DACLOL2_REG				0x55
87 #define LM49453_P0_DACLOR1_REG				0x56
88 #define LM49453_P0_DACLOR2_REG				0x57
89 #define LM49453_P0_DACLSL1_REG				0x58
90 #define LM49453_P0_DACLSL2_REG				0x59
91 #define LM49453_P0_DACLSR1_REG				0x5A
92 #define LM49453_P0_DACLSR2_REG				0x5B
93 #define LM49453_P0_DACHAL1_REG				0x5C
94 #define LM49453_P0_DACHAL2_REG				0x5D
95 #define LM49453_P0_DACHAR1_REG				0x5E
96 #define LM49453_P0_DACHAR2_REG				0x5F
97 
98 /* AUDIO PORT 1 (TDM) */
99 #define LM49453_P0_AUDIO_PORT1_BASIC_REG		0x60
100 #define LM49453_P0_AUDIO_PORT1_CLK_GEN1_REG		0x61
101 #define LM49453_P0_AUDIO_PORT1_CLK_GEN2_REG		0x62
102 #define LM49453_P0_AUDIO_PORT1_CLK_GEN3_REG		0x63
103 #define LM49453_P0_AUDIO_PORT1_SYNC_RATE_REG		0x64
104 #define LM49453_P0_AUDIO_PORT1_SYNC_SDO_SETUP_REG	0x65
105 #define LM49453_P0_AUDIO_PORT1_DATA_WIDTH_REG		0x66
106 #define LM49453_P0_AUDIO_PORT1_RX_MSB_REG		0x67
107 #define LM49453_P0_AUDIO_PORT1_TX_MSB_REG		0x68
108 #define LM49453_P0_AUDIO_PORT1_TDM_CHANNELS_REG		0x69
109 
110 /* AUDIO PORT 2 */
111 #define LM49453_P0_AUDIO_PORT2_BASIC_REG		0x6A
112 #define LM49453_P0_AUDIO_PORT2_CLK_GEN1_REG		0x6B
113 #define LM49453_P0_AUDIO_PORT2_CLK_GEN2_REG		0x6C
114 #define LM49453_P0_AUDIO_PORT2_SYNC_GEN_REG		0x6D
115 #define LM49453_P0_AUDIO_PORT2_DATA_WIDTH_REG		0x6E
116 #define LM49453_P0_AUDIO_PORT2_RX_MODE_REG		0x6F
117 #define LM49453_P0_AUDIO_PORT2_TX_MODE_REG		0x70
118 
119 /* SAMPLE RATE */
120 #define LM49453_P0_PORT1_SR_LSB_REG			0x79
121 #define LM49453_P0_PORT1_SR_MSB_REG			0x7A
122 #define LM49453_P0_PORT2_SR_LSB_REG			0x7B
123 #define LM49453_P0_PORT2_SR_MSB_REG			0x7C
124 
125 /* EFFECTS - HPFs */
126 #define LM49453_P0_HPF_REG				0x80
127 
128 /* EFFECTS ADC ALC */
129 #define LM49453_P0_ADC_ALC1_REG				0x82
130 #define LM49453_P0_ADC_ALC2_REG				0x83
131 #define LM49453_P0_ADC_ALC3_REG				0x84
132 #define LM49453_P0_ADC_ALC4_REG				0x85
133 #define LM49453_P0_ADC_ALC5_REG				0x86
134 #define LM49453_P0_ADC_ALC6_REG				0x87
135 #define LM49453_P0_ADC_ALC7_REG				0x88
136 #define LM49453_P0_ADC_ALC8_REG				0x89
137 #define LM49453_P0_DMIC1_LEVELL_REG			0x8A
138 #define LM49453_P0_DMIC1_LEVELR_REG			0x8B
139 #define LM49453_P0_DMIC2_LEVELL_REG			0x8C
140 #define LM49453_P0_DMIC2_LEVELR_REG			0x8D
141 #define LM49453_P0_ADC_LEVELL_REG			0x8E
142 #define LM49453_P0_ADC_LEVELR_REG			0x8F
143 #define LM49453_P0_DAC_HP_LEVELL_REG			0x90
144 #define LM49453_P0_DAC_HP_LEVELR_REG			0x91
145 #define LM49453_P0_DAC_LO_LEVELL_REG			0x92
146 #define LM49453_P0_DAC_LO_LEVELR_REG			0x93
147 #define LM49453_P0_DAC_LS_LEVELL_REG			0x94
148 #define LM49453_P0_DAC_LS_LEVELR_REG			0x95
149 #define LM49453_P0_DAC_HA_LEVELL_REG			0x96
150 #define LM49453_P0_DAC_HA_LEVELR_REG			0x97
151 #define LM49453_P0_SOFT_MUTE_REG			0x98
152 #define LM49453_P0_DMIC_MUTE_CFG_REG			0x99
153 #define LM49453_P0_ADC_MUTE_CFG_REG			0x9A
154 #define LM49453_P0_DAC_MUTE_CFG_REG			0x9B
155 
156 /*DIGITAL MIC1 */
157 #define LM49453_P0_DIGITAL_MIC1_CONFIG_REG		0xB0
158 #define LM49453_P0_DIGITAL_MIC1_DATA_DELAYL_REG		0xB1
159 #define LM49453_P0_DIGITAL_MIC1_DATA_DELAYR_REG		0xB2
160 
161 /*DIGITAL MIC2 */
162 #define LM49453_P0_DIGITAL_MIC2_CONFIG_REG		0xB3
163 #define LM49453_P0_DIGITAL_MIC2_DATA_DELAYL_REG		0xB4
164 #define LM49453_P0_DIGITAL_MIC2_DATA_DELAYR_REG		0xB5
165 
166 /* ADC DECIMATOR */
167 #define LM49453_P0_ADC_DECIMATOR_REG			0xB6
168 
169 /* DAC CONFIGURE */
170 #define LM49453_P0_DAC_CONFIG_REG			0xB7
171 
172 /* SIDETONE */
173 #define LM49453_P0_STN_VOL_ADCL_REG			0xB8
174 #define LM49453_P0_STN_VOL_ADCR_REG			0xB9
175 #define LM49453_P0_STN_VOL_DMIC1L_REG			0xBA
176 #define LM49453_P0_STN_VOL_DMIC1R_REG			0xBB
177 #define LM49453_P0_STN_VOL_DMIC2L_REG			0xBC
178 #define LM49453_P0_STN_VOL_DMIC2R_REG			0xBD
179 
180 /* ADC/DAC CLIPPING MONITORS (Read Only/Write to Clear) */
181 #define LM49453_P0_ADC_DEC_CLIP_REG			0xC2
182 #define LM49453_P0_ADC_HPF_CLIP_REG			0xC3
183 #define LM49453_P0_ADC_LVL_CLIP_REG			0xC4
184 #define LM49453_P0_DAC_LVL_CLIP_REG			0xC5
185 
186 /* ADC ALC EFFECT MONITORS (Read Only) */
187 #define LM49453_P0_ADC_LVLMONL_REG			0xC8
188 #define LM49453_P0_ADC_LVLMONR_REG			0xC9
189 #define LM49453_P0_ADC_ALCMONL_REG			0xCA
190 #define LM49453_P0_ADC_ALCMONR_REG			0xCB
191 #define LM49453_P0_ADC_MUTED_REG			0xCC
192 #define LM49453_P0_DAC_MUTED_REG			0xCD
193 
194 /* HEADSET DETECT */
195 #define LM49453_P0_HSD_PPB_LONG_CNT_LIMITL_REG		0xD0
196 #define LM49453_P0_HSD_PPB_LONG_CNT_LIMITR_REG		0xD1
197 #define LM49453_P0_HSD_PIN3_4_EX_LOOP_CNT_LIMITL_REG	0xD2
198 #define LM49453_P0_HSD_PIN3_4_EX_LOOP_CNT_LIMITH_REG	0xD3
199 #define LM49453_P0_HSD_TIMEOUT1_REG			0xD4
200 #define LM49453_P0_HSD_TIMEOUT2_REG			0xD5
201 #define LM49453_P0_HSD_TIMEOUT3_REG			0xD6
202 #define LM49453_P0_HSD_PIN3_4_CFG_REG			0xD7
203 #define LM49453_P0_HSD_IRQ1_REG				0xD8
204 #define LM49453_P0_HSD_IRQ2_REG				0xD9
205 #define LM49453_P0_HSD_IRQ3_REG				0xDA
206 #define LM49453_P0_HSD_IRQ4_REG				0xDB
207 #define LM49453_P0_HSD_IRQ_MASK1_REG			0xDC
208 #define LM49453_P0_HSD_IRQ_MASK2_REG			0xDD
209 #define LM49453_P0_HSD_IRQ_MASK3_REG			0xDE
210 #define LM49453_P0_HSD_R_HPLL_REG			0xE0
211 #define LM49453_P0_HSD_R_HPLH_REG			0xE1
212 #define LM49453_P0_HSD_R_HPLU_REG			0xE2
213 #define LM49453_P0_HSD_R_HPRL_REG			0xE3
214 #define LM49453_P0_HSD_R_HPRH_REG			0xE4
215 #define LM49453_P0_HSD_R_HPRU_REG			0xE5
216 #define LM49453_P0_HSD_VEL_L_FINALL_REG			0xE6
217 #define LM49453_P0_HSD_VEL_L_FINALH_REG			0xE7
218 #define LM49453_P0_HSD_VEL_L_FINALU_REG			0xE8
219 #define LM49453_P0_HSD_RO_FINALL_REG			0xE9
220 #define LM49453_P0_HSD_RO_FINALH_REG			0xEA
221 #define LM49453_P0_HSD_RO_FINALU_REG			0xEB
222 #define LM49453_P0_HSD_VMIC_BIAS_FINALL_REG		0xEC
223 #define LM49453_P0_HSD_VMIC_BIAS_FINALH_REG		0xED
224 #define LM49453_P0_HSD_VMIC_BIAS_FINALU_REG		0xEE
225 #define LM49453_P0_HSD_PIN_CONFIG_REG			0xEF
226 #define LM49453_P0_HSD_PLUG_DETECT_BB_IRQ_STATUS1_REG	0xF1
227 #define LM49453_P0_HSD_PLUG_DETECT_BB_IRQ_STATUS2_REG	0xF2
228 #define LM49453_P0_HSD_PLUG_DETECT_BB_IRQ_STATUS3_REG	0xF3
229 #define LM49453_P0_HSD_PLUG_DETECT_BB_IRQ_STATEL_REG	0xF4
230 #define LM49453_P0_HSD_PLUG_DETECT_BB_IRQ_STATEH_REG	0xF5
231 
232 /* I/O PULLDOWN CONFIG */
233 #define LM49453_P0_PULL_CONFIG1_REG			0xF8
234 #define LM49453_P0_PULL_CONFIG2_REG			0xF9
235 #define LM49453_P0_PULL_CONFIG3_REG			0xFA
236 
237 /* RESET */
238 #define LM49453_P0_RESET_REG				0xFE
239 
240 /* PAGE */
241 #define LM49453_PAGE_REG				0xFF
242 
243 #define LM49453_MAX_REGISTER				(0xFF+1)
244 
245 /* LM49453_P0_PMC_SETUP_REG (0x00h) */
246 #define LM49453_PMC_SETUP_CHIP_EN			(BIT(1)|BIT(0))
247 #define LM49453_PMC_SETUP_PLL_EN			BIT(2)
248 #define LM49453_PMC_SETUP_PLL_P2_EN			BIT(3)
249 #define LM49453_PMC_SETUP_PLL_FLL			BIT(4)
250 #define LM49453_PMC_SETUP_MCLK_OVER			BIT(5)
251 #define LM49453_PMC_SETUP_RTC_CLK_OVER			BIT(6)
252 #define LM49453_PMC_SETUP_CHIP_ACTIVE			BIT(7)
253 
254 /* Chip Enable bits */
255 #define LM49453_CHIP_EN_SHUTDOWN			0x00
256 #define LM49453_CHIP_EN					0x01
257 #define LM49453_CHIP_EN_HSD_DETECT			0x02
258 #define LM49453_CHIP_EN_INVALID_HSD			0x03
259 
260 /* LM49453_P0_PLL_CLK_SEL1_REG (0x01h) */
261 #define LM49453_CLK_SEL1_MCLK_SEL			0x11
262 #define LM49453_CLK_SEL1_RTC_SEL			0x11
263 #define LM49453_CLK_SEL1_PORT1_SEL			0x10
264 #define LM49453_CLK_SEL1_PORT2_SEL			0x11
265 
266 /* LM49453_P0_PLL_CLK_SEL2_REG (0x02h) */
267 #define LM49453_CLK_SEL2_ADC_CLK_SEL			0x38
268 
269 /* LM49453_P0_FLL_REF_FREQL_REG (0x0F) */
270 #define LM49453_FLL_REF_FREQ_VAL			0x8ca0001
271 
272 /* LM49453_P0_VCO_TARGETLL_REG (0x11) */
273 #define LM49453_VCO_TARGET_VAL				0x8ca0001
274 
275 /* LM49453_P0_ADC_DSP_REG (0x30h) */
276 #define LM49453_ADC_DSP_ADC_MUTEL			BIT(0)
277 #define LM49453_ADC_DSP_ADC_MUTER			BIT(1)
278 #define LM49453_ADC_DSP_DMIC1_MUTEL			BIT(2)
279 #define LM49453_ADC_DSP_DMIC1_MUTER			BIT(3)
280 #define LM49453_ADC_DSP_DMIC2_MUTEL			BIT(4)
281 #define LM49453_ADC_DSP_DMIC2_MUTER			BIT(5)
282 #define LM49453_ADC_DSP_MUTE_ALL			0x3F
283 
284 /* LM49453_P0_DAC_DSP_REG (0x31h) */
285 #define LM49453_DAC_DSP_MUTE_ALL			0xFF
286 
287 /* LM49453_P0_AUDIO_PORT1_BASIC_REG (0x60h) */
288 #define LM49453_AUDIO_PORT1_BASIC_FMT_MASK		(BIT(4)|BIT(3))
289 #define LM49453_AUDIO_PORT1_BASIC_CLK_MS		BIT(3)
290 #define LM49453_AUDIO_PORT1_BASIC_SYNC_MS		BIT(4)
291 
292 /* LM49453_P0_RESET_REG (0xFEh) */
293 #define LM49453_RESET_REG_RST				BIT(0)
294 
295 /* Page select register bits (0xFF) */
296 #define LM49453_PAGE0_SELECT				0x0
297 #define LM49453_PAGE1_SELECT				0x1
298 
299 /* LM49453_P0_HSD_PIN3_4_CFG_REG (Jack Pin config - 0xD7) */
300 #define LM49453_JACK_DISABLE				0x00
301 #define LM49453_JACK_CONFIG1				0x01
302 #define LM49453_JACK_CONFIG2				0x02
303 #define LM49453_JACK_CONFIG3				0x03
304 #define LM49453_JACK_CONFIG4				0x04
305 #define LM49453_JACK_CONFIG5				0x05
306 
307 /* Page 1 REGISTERS */
308 
309 /* SIDETONE */
310 #define LM49453_P1_SIDETONE_SA0L_REG			0x80
311 #define LM49453_P1_SIDETONE_SA0H_REG			0x81
312 #define LM49453_P1_SIDETONE_SAB0U_REG			0x82
313 #define LM49453_P1_SIDETONE_SB0L_REG			0x83
314 #define LM49453_P1_SIDETONE_SB0H_REG			0x84
315 #define LM49453_P1_SIDETONE_SH0L_REG			0x85
316 #define LM49453_P1_SIDETONE_SH0H_REG			0x86
317 #define LM49453_P1_SIDETONE_SH0U_REG			0x87
318 #define LM49453_P1_SIDETONE_SA1L_REG			0x88
319 #define LM49453_P1_SIDETONE_SA1H_REG			0x89
320 #define LM49453_P1_SIDETONE_SAB1U_REG			0x8A
321 #define LM49453_P1_SIDETONE_SB1L_REG			0x8B
322 #define LM49453_P1_SIDETONE_SB1H_REG			0x8C
323 #define LM49453_P1_SIDETONE_SH1L_REG			0x8D
324 #define LM49453_P1_SIDETONE_SH1H_REG			0x8E
325 #define LM49453_P1_SIDETONE_SH1U_REG			0x8F
326 #define LM49453_P1_SIDETONE_SA2L_REG			0x90
327 #define LM49453_P1_SIDETONE_SA2H_REG			0x91
328 #define LM49453_P1_SIDETONE_SAB2U_REG			0x92
329 #define LM49453_P1_SIDETONE_SB2L_REG			0x93
330 #define LM49453_P1_SIDETONE_SB2H_REG			0x94
331 #define LM49453_P1_SIDETONE_SH2L_REG			0x95
332 #define LM49453_P1_SIDETONE_SH2H_REG			0x96
333 #define LM49453_P1_SIDETONE_SH2U_REG			0x97
334 #define LM49453_P1_SIDETONE_SA3L_REG			0x98
335 #define LM49453_P1_SIDETONE_SA3H_REG			0x99
336 #define LM49453_P1_SIDETONE_SAB3U_REG			0x9A
337 #define LM49453_P1_SIDETONE_SB3L_REG			0x9B
338 #define LM49453_P1_SIDETONE_SB3H_REG			0x9C
339 #define LM49453_P1_SIDETONE_SH3L_REG			0x9D
340 #define LM49453_P1_SIDETONE_SH3H_REG			0x9E
341 #define LM49453_P1_SIDETONE_SH3U_REG			0x9F
342 #define LM49453_P1_SIDETONE_SA4L_REG			0xA0
343 #define LM49453_P1_SIDETONE_SA4H_REG			0xA1
344 #define LM49453_P1_SIDETONE_SAB4U_REG			0xA2
345 #define LM49453_P1_SIDETONE_SB4L_REG			0xA3
346 #define LM49453_P1_SIDETONE_SB4H_REG			0xA4
347 #define LM49453_P1_SIDETONE_SH4L_REG			0xA5
348 #define LM49453_P1_SIDETONE_SH4H_REG			0xA6
349 #define LM49453_P1_SIDETONE_SH4U_REG			0xA7
350 #define LM49453_P1_SIDETONE_SA5L_REG			0xA8
351 #define LM49453_P1_SIDETONE_SA5H_REG			0xA9
352 #define LM49453_P1_SIDETONE_SAB5U_REG			0xAA
353 #define LM49453_P1_SIDETONE_SB5L_REG			0xAB
354 #define LM49453_P1_SIDETONE_SB5H_REG			0xAC
355 #define LM49453_P1_SIDETONE_SH5L_REG			0xAD
356 #define LM49453_P1_SIDETONE_SH5H_REG			0xAE
357 #define LM49453_P1_SIDETONE_SH5U_REG			0xAF
358 
359 /* CHARGE PUMP CONFIG */
360 #define LM49453_P1_CP_CONFIG1_REG			0xB0
361 #define LM49453_P1_CP_CONFIG2_REG			0xB1
362 #define LM49453_P1_CP_CONFIG3_REG			0xB2
363 #define LM49453_P1_CP_CONFIG4_REG			0xB3
364 #define LM49453_P1_CP_LA_VTH1L_REG			0xB4
365 #define LM49453_P1_CP_LA_VTH1M_REG			0xB5
366 #define LM49453_P1_CP_LA_VTH2L_REG			0xB6
367 #define LM49453_P1_CP_LA_VTH2M_REG			0xB7
368 #define LM49453_P1_CP_LA_VTH3L_REG			0xB8
369 #define LM49453_P1_CP_LA_VTH3H_REG			0xB9
370 #define LM49453_P1_CP_CLK_DIV_REG			0xBA
371 
372 /* DAC */
373 #define LM49453_P1_DAC_CHOP_REG				0xC0
374 
375 #define	LM49453_CLK_SRC_MCLK				1
376 #endif
377