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1// SPDX-License-Identifier: GPL-1.0+
2/*
3 * Renesas USB driver
4 *
5 * Copyright (C) 2011 Renesas Solutions Corp.
6 * Copyright (C) 2019 Renesas Electronics Corporation
7 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
8 */
9#include <linux/interrupt.h>
10
11#include "common.h"
12#include "mod.h"
13
14/*
15 * autonomy
16 *
17 * these functions are used if platform doesn't have external phy.
18 * -> there is no "notify_hotplug" callback from platform
19 * -> call "notify_hotplug" by itself
20 * -> use own interrupt to connect/disconnect
21 * -> it mean module clock is always ON
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24static int usbhsm_autonomy_get_vbus(struct platform_device *pdev)
25{
26 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
27
28 return VBSTS & usbhs_read(priv, INTSTS0);
29}
30
31static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv,
32 struct usbhs_irq_state *irq_state)
33{
34 struct platform_device *pdev = usbhs_priv_to_pdev(priv);
35
36 usbhsc_schedule_notify_hotplug(pdev);
37
38 return 0;
39}
40
41void usbhs_mod_autonomy_mode(struct usbhs_priv *priv)
42{
43 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
44
45 info->irq_vbus = usbhsm_autonomy_irq_vbus;
46 info->get_vbus = usbhsm_autonomy_get_vbus;
47
48 usbhs_irq_callback_update(priv, NULL);
49}
50
51void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv)
52{
53 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
54
55 info->get_vbus = priv->pfunc->get_vbus;
56}
57
58/*
59 * host / gadget functions
60 *
61 * renesas_usbhs host/gadget can register itself by below functions.
62 * these functions are called when probe
63 *
64 */
65void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *mod, int id)
66{
67 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
68
69 info->mod[id] = mod;
70 mod->priv = priv;
71}
72
73struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id)
74{
75 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
76 struct usbhs_mod *ret = NULL;
77
78 switch (id) {
79 case USBHS_HOST:
80 case USBHS_GADGET:
81 ret = info->mod[id];
82 break;
83 }
84
85 return ret;
86}
87
88int usbhs_mod_is_host(struct usbhs_priv *priv)
89{
90 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
91 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
92
93 if (!mod)
94 return -EINVAL;
95
96 return info->mod[USBHS_HOST] == mod;
97}
98
99struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv)
100{
101 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
102
103 return info->curt;
104}
105
106int usbhs_mod_change(struct usbhs_priv *priv, int id)
107{
108 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
109 struct usbhs_mod *mod = NULL;
110 int ret = 0;
111
112 /* id < 0 mean no current */
113 switch (id) {
114 case USBHS_HOST:
115 case USBHS_GADGET:
116 mod = info->mod[id];
117 break;
118 default:
119 ret = -EINVAL;
120 }
121 info->curt = mod;
122
123 return ret;
124}
125
126static irqreturn_t usbhs_interrupt(int irq, void *data);
127int usbhs_mod_probe(struct usbhs_priv *priv)
128{
129 struct device *dev = usbhs_priv_to_dev(priv);
130 int ret;
131
132 /*
133 * install host/gadget driver
134 */
135 ret = usbhs_mod_host_probe(priv);
136 if (ret < 0)
137 return ret;
138
139 ret = usbhs_mod_gadget_probe(priv);
140 if (ret < 0)
141 goto mod_init_host_err;
142
143 /* irq settings */
144 ret = devm_request_irq(dev, priv->irq, usbhs_interrupt,
145 0, dev_name(dev), priv);
146 if (ret) {
147 dev_err(dev, "irq request err\n");
148 goto mod_init_gadget_err;
149 }
150
151 return ret;
152
153mod_init_gadget_err:
154 usbhs_mod_gadget_remove(priv);
155mod_init_host_err:
156 usbhs_mod_host_remove(priv);
157
158 return ret;
159}
160
161void usbhs_mod_remove(struct usbhs_priv *priv)
162{
163 usbhs_mod_host_remove(priv);
164 usbhs_mod_gadget_remove(priv);
165}
166
167/*
168 * status functions
169 */
170int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state)
171{
172 return (int)irq_state->intsts0 & DVSQ_MASK;
173}
174
175int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
176{
177 /*
178 * return value
179 *
180 * IDLE_SETUP_STAGE
181 * READ_DATA_STAGE
182 * READ_STATUS_STAGE
183 * WRITE_DATA_STAGE
184 * WRITE_STATUS_STAGE
185 * NODATA_STATUS_STAGE
186 * SEQUENCE_ERROR
187 */
188 return (int)irq_state->intsts0 & CTSQ_MASK;
189}
190
191static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
192 struct usbhs_irq_state *state)
193{
194 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
195 u16 intenb0, intenb1;
196 unsigned long flags;
197
198 /******************** spin lock ********************/
199 usbhs_lock(priv, flags);
200 state->intsts0 = usbhs_read(priv, INTSTS0);
201 intenb0 = usbhs_read(priv, INTENB0);
202
203 if (usbhs_mod_is_host(priv)) {
204 state->intsts1 = usbhs_read(priv, INTSTS1);
205 intenb1 = usbhs_read(priv, INTENB1);
206 } else {
207 state->intsts1 = intenb1 = 0;
208 }
209
210 /* mask */
211 if (mod) {
212 state->brdysts = usbhs_read(priv, BRDYSTS);
213 state->nrdysts = usbhs_read(priv, NRDYSTS);
214 state->bempsts = usbhs_read(priv, BEMPSTS);
215
216 state->bempsts &= mod->irq_bempsts;
217 state->brdysts &= mod->irq_brdysts;
218 }
219 usbhs_unlock(priv, flags);
220 /******************** spin unlock ******************/
221
222 return 0;
223}
224
225/*
226 * interrupt
227 */
228#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
229#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
230static irqreturn_t usbhs_interrupt(int irq, void *data)
231{
232 struct usbhs_priv *priv = data;
233 struct usbhs_irq_state irq_state;
234
235 if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
236 return IRQ_NONE;
237
238 /*
239 * clear interrupt
240 *
241 * The hardware is _very_ picky to clear interrupt bit.
242 * Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
243 *
244 * see
245 * "Operation"
246 * - "Control Transfer (DCP)"
247 * - Function :: VALID bit should 0
248 */
249 usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
250 if (usbhs_mod_is_host(priv))
251 usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
252
253 /*
254 * The driver should not clear the xxxSTS after the line of
255 * "call irq callback functions" because each "if" statement is
256 * possible to call the callback function for avoiding any side effects.
257 */
258 if (irq_state.intsts0 & BRDY)
259 usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
260 usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
261 if (irq_state.intsts0 & BEMP)
262 usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
263
264 /*
265 * call irq callback functions
266 * see also
267 * usbhs_irq_setting_update
268 */
269
270 /* INTSTS0 */
271 if (irq_state.intsts0 & VBINT)
272 usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
273
274 if (irq_state.intsts0 & DVST)
275 usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
276
277 if (irq_state.intsts0 & CTRT)
278 usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
279
280 if (irq_state.intsts0 & BEMP)
281 usbhs_mod_call(priv, irq_empty, priv, &irq_state);
282
283 if (irq_state.intsts0 & BRDY)
284 usbhs_mod_call(priv, irq_ready, priv, &irq_state);
285
286 if (usbhs_mod_is_host(priv)) {
287 /* INTSTS1 */
288 if (irq_state.intsts1 & ATTCH)
289 usbhs_mod_call(priv, irq_attch, priv, &irq_state);
290
291 if (irq_state.intsts1 & DTCH)
292 usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
293
294 if (irq_state.intsts1 & SIGN)
295 usbhs_mod_call(priv, irq_sign, priv, &irq_state);
296
297 if (irq_state.intsts1 & SACK)
298 usbhs_mod_call(priv, irq_sack, priv, &irq_state);
299 }
300 return IRQ_HANDLED;
301}
302
303void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
304{
305 u16 intenb0 = 0;
306 u16 intenb1 = 0;
307 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
308
309 /*
310 * BEMPENB/BRDYENB are picky.
311 * below method is required
312 *
313 * - clear INTSTS0
314 * - update BEMPENB/BRDYENB
315 * - update INTSTS0
316 */
317 usbhs_write(priv, INTENB0, 0);
318 if (usbhs_mod_is_host(priv))
319 usbhs_write(priv, INTENB1, 0);
320
321 usbhs_write(priv, BEMPENB, 0);
322 usbhs_write(priv, BRDYENB, 0);
323
324 /*
325 * see also
326 * usbhs_interrupt
327 */
328
329 if (info->irq_vbus)
330 intenb0 |= VBSE;
331
332 if (mod) {
333 /*
334 * INTSTS0
335 */
336 if (mod->irq_ctrl_stage)
337 intenb0 |= CTRE;
338
339 if (mod->irq_dev_state)
340 intenb0 |= DVSE;
341
342 if (mod->irq_empty && mod->irq_bempsts) {
343 usbhs_write(priv, BEMPENB, mod->irq_bempsts);
344 intenb0 |= BEMPE;
345 }
346
347 if (mod->irq_ready && mod->irq_brdysts) {
348 usbhs_write(priv, BRDYENB, mod->irq_brdysts);
349 intenb0 |= BRDYE;
350 }
351
352 if (usbhs_mod_is_host(priv)) {
353 /*
354 * INTSTS1
355 */
356 if (mod->irq_attch)
357 intenb1 |= ATTCHE;
358
359 if (mod->irq_dtch)
360 intenb1 |= DTCHE;
361
362 if (mod->irq_sign)
363 intenb1 |= SIGNE;
364
365 if (mod->irq_sack)
366 intenb1 |= SACKE;
367 }
368 }
369
370 if (intenb0)
371 usbhs_write(priv, INTENB0, intenb0);
372
373 if (usbhs_mod_is_host(priv) && intenb1)
374 usbhs_write(priv, INTENB1, intenb1);
375}
1// SPDX-License-Identifier: GPL-1.0+
2/*
3 * Renesas USB driver
4 *
5 * Copyright (C) 2011 Renesas Solutions Corp.
6 * Copyright (C) 2019 Renesas Electronics Corporation
7 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
8 */
9#include <linux/interrupt.h>
10
11#include "common.h"
12#include "mod.h"
13
14/*
15 * autonomy
16 *
17 * these functions are used if platform doesn't have external phy.
18 * -> there is no "notify_hotplug" callback from platform
19 * -> call "notify_hotplug" by itself
20 * -> use own interrupt to connect/disconnect
21 * -> it mean module clock is always ON
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24static int usbhsm_autonomy_get_vbus(struct platform_device *pdev)
25{
26 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
27
28 return VBSTS & usbhs_read(priv, INTSTS0);
29}
30
31static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv,
32 struct usbhs_irq_state *irq_state)
33{
34 struct platform_device *pdev = usbhs_priv_to_pdev(priv);
35
36 usbhsc_schedule_notify_hotplug(pdev);
37
38 return 0;
39}
40
41void usbhs_mod_autonomy_mode(struct usbhs_priv *priv)
42{
43 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
44
45 info->irq_vbus = usbhsm_autonomy_irq_vbus;
46 info->get_vbus = usbhsm_autonomy_get_vbus;
47
48 usbhs_irq_callback_update(priv, NULL);
49}
50
51void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv)
52{
53 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
54
55 info->get_vbus = priv->pfunc->get_vbus;
56}
57
58/*
59 * host / gadget functions
60 *
61 * renesas_usbhs host/gadget can register itself by below functions.
62 * these functions are called when probe
63 *
64 */
65void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *mod, int id)
66{
67 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
68
69 info->mod[id] = mod;
70 mod->priv = priv;
71}
72
73struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id)
74{
75 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
76 struct usbhs_mod *ret = NULL;
77
78 switch (id) {
79 case USBHS_HOST:
80 case USBHS_GADGET:
81 ret = info->mod[id];
82 break;
83 }
84
85 return ret;
86}
87
88int usbhs_mod_is_host(struct usbhs_priv *priv)
89{
90 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
91 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
92
93 if (!mod)
94 return -EINVAL;
95
96 return info->mod[USBHS_HOST] == mod;
97}
98
99struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv)
100{
101 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
102
103 return info->curt;
104}
105
106int usbhs_mod_change(struct usbhs_priv *priv, int id)
107{
108 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
109 struct usbhs_mod *mod = NULL;
110 int ret = 0;
111
112 /* id < 0 mean no current */
113 switch (id) {
114 case USBHS_HOST:
115 case USBHS_GADGET:
116 mod = info->mod[id];
117 break;
118 default:
119 ret = -EINVAL;
120 }
121 info->curt = mod;
122
123 return ret;
124}
125
126static irqreturn_t usbhs_interrupt(int irq, void *data);
127int usbhs_mod_probe(struct usbhs_priv *priv)
128{
129 struct device *dev = usbhs_priv_to_dev(priv);
130 int ret;
131
132 /*
133 * install host/gadget driver
134 */
135 ret = usbhs_mod_host_probe(priv);
136 if (ret < 0)
137 return ret;
138
139 ret = usbhs_mod_gadget_probe(priv);
140 if (ret < 0)
141 goto mod_init_host_err;
142
143 /* irq settings */
144 ret = devm_request_irq(dev, priv->irq, usbhs_interrupt,
145 priv->irqflags, dev_name(dev), priv);
146 if (ret) {
147 dev_err(dev, "irq request err\n");
148 goto mod_init_gadget_err;
149 }
150
151 return ret;
152
153mod_init_gadget_err:
154 usbhs_mod_gadget_remove(priv);
155mod_init_host_err:
156 usbhs_mod_host_remove(priv);
157
158 return ret;
159}
160
161void usbhs_mod_remove(struct usbhs_priv *priv)
162{
163 usbhs_mod_host_remove(priv);
164 usbhs_mod_gadget_remove(priv);
165}
166
167/*
168 * status functions
169 */
170int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state)
171{
172 int state = irq_state->intsts0 & DVSQ_MASK;
173
174 switch (state) {
175 case POWER_STATE:
176 case DEFAULT_STATE:
177 case ADDRESS_STATE:
178 case CONFIGURATION_STATE:
179 return state;
180 }
181
182 return -EIO;
183}
184
185int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
186{
187 /*
188 * return value
189 *
190 * IDLE_SETUP_STAGE
191 * READ_DATA_STAGE
192 * READ_STATUS_STAGE
193 * WRITE_DATA_STAGE
194 * WRITE_STATUS_STAGE
195 * NODATA_STATUS_STAGE
196 * SEQUENCE_ERROR
197 */
198 return (int)irq_state->intsts0 & CTSQ_MASK;
199}
200
201static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
202 struct usbhs_irq_state *state)
203{
204 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
205 u16 intenb0, intenb1;
206 unsigned long flags;
207
208 /******************** spin lock ********************/
209 usbhs_lock(priv, flags);
210 state->intsts0 = usbhs_read(priv, INTSTS0);
211 intenb0 = usbhs_read(priv, INTENB0);
212
213 if (usbhs_mod_is_host(priv)) {
214 state->intsts1 = usbhs_read(priv, INTSTS1);
215 intenb1 = usbhs_read(priv, INTENB1);
216 } else {
217 state->intsts1 = intenb1 = 0;
218 }
219
220 /* mask */
221 if (mod) {
222 state->brdysts = usbhs_read(priv, BRDYSTS);
223 state->nrdysts = usbhs_read(priv, NRDYSTS);
224 state->bempsts = usbhs_read(priv, BEMPSTS);
225
226 state->bempsts &= mod->irq_bempsts;
227 state->brdysts &= mod->irq_brdysts;
228 }
229 usbhs_unlock(priv, flags);
230 /******************** spin unlock ******************/
231
232 /*
233 * Check whether the irq enable registers and the irq status are set
234 * when IRQF_SHARED is set.
235 */
236 if (priv->irqflags & IRQF_SHARED) {
237 if (!(intenb0 & state->intsts0) &&
238 !(intenb1 & state->intsts1) &&
239 !(state->bempsts) &&
240 !(state->brdysts))
241 return -EIO;
242 }
243
244 return 0;
245}
246
247/*
248 * interrupt
249 */
250#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
251#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
252static irqreturn_t usbhs_interrupt(int irq, void *data)
253{
254 struct usbhs_priv *priv = data;
255 struct usbhs_irq_state irq_state;
256
257 if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
258 return IRQ_NONE;
259
260 /*
261 * clear interrupt
262 *
263 * The hardware is _very_ picky to clear interrupt bit.
264 * Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
265 *
266 * see
267 * "Operation"
268 * - "Control Transfer (DCP)"
269 * - Function :: VALID bit should 0
270 */
271 usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
272 if (usbhs_mod_is_host(priv))
273 usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
274
275 /*
276 * The driver should not clear the xxxSTS after the line of
277 * "call irq callback functions" because each "if" statement is
278 * possible to call the callback function for avoiding any side effects.
279 */
280 if (irq_state.intsts0 & BRDY)
281 usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
282 usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
283 if (irq_state.intsts0 & BEMP)
284 usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
285
286 /*
287 * call irq callback functions
288 * see also
289 * usbhs_irq_setting_update
290 */
291
292 /* INTSTS0 */
293 if (irq_state.intsts0 & VBINT)
294 usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
295
296 if (irq_state.intsts0 & DVST)
297 usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
298
299 if (irq_state.intsts0 & CTRT)
300 usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
301
302 if (irq_state.intsts0 & BEMP)
303 usbhs_mod_call(priv, irq_empty, priv, &irq_state);
304
305 if (irq_state.intsts0 & BRDY)
306 usbhs_mod_call(priv, irq_ready, priv, &irq_state);
307
308 if (usbhs_mod_is_host(priv)) {
309 /* INTSTS1 */
310 if (irq_state.intsts1 & ATTCH)
311 usbhs_mod_call(priv, irq_attch, priv, &irq_state);
312
313 if (irq_state.intsts1 & DTCH)
314 usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
315
316 if (irq_state.intsts1 & SIGN)
317 usbhs_mod_call(priv, irq_sign, priv, &irq_state);
318
319 if (irq_state.intsts1 & SACK)
320 usbhs_mod_call(priv, irq_sack, priv, &irq_state);
321 }
322 return IRQ_HANDLED;
323}
324
325void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
326{
327 u16 intenb0 = 0;
328 u16 intenb1 = 0;
329 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
330
331 /*
332 * BEMPENB/BRDYENB are picky.
333 * below method is required
334 *
335 * - clear INTSTS0
336 * - update BEMPENB/BRDYENB
337 * - update INTSTS0
338 */
339 usbhs_write(priv, INTENB0, 0);
340 if (usbhs_mod_is_host(priv))
341 usbhs_write(priv, INTENB1, 0);
342
343 usbhs_write(priv, BEMPENB, 0);
344 usbhs_write(priv, BRDYENB, 0);
345
346 /*
347 * see also
348 * usbhs_interrupt
349 */
350
351 /*
352 * it don't enable DVSE (intenb0) here
353 * but "mod->irq_dev_state" will be called.
354 */
355 if (info->irq_vbus)
356 intenb0 |= VBSE;
357
358 if (mod) {
359 /*
360 * INTSTS0
361 */
362 if (mod->irq_ctrl_stage)
363 intenb0 |= CTRE;
364
365 if (mod->irq_empty && mod->irq_bempsts) {
366 usbhs_write(priv, BEMPENB, mod->irq_bempsts);
367 intenb0 |= BEMPE;
368 }
369
370 if (mod->irq_ready && mod->irq_brdysts) {
371 usbhs_write(priv, BRDYENB, mod->irq_brdysts);
372 intenb0 |= BRDYE;
373 }
374
375 if (usbhs_mod_is_host(priv)) {
376 /*
377 * INTSTS1
378 */
379 if (mod->irq_attch)
380 intenb1 |= ATTCHE;
381
382 if (mod->irq_dtch)
383 intenb1 |= DTCHE;
384
385 if (mod->irq_sign)
386 intenb1 |= SIGNE;
387
388 if (mod->irq_sack)
389 intenb1 |= SACKE;
390 }
391 }
392
393 if (intenb0)
394 usbhs_write(priv, INTENB0, intenb0);
395
396 if (usbhs_mod_is_host(priv) && intenb1)
397 usbhs_write(priv, INTENB1, intenb1);
398}