Loading...
1/*
2 * Renesas USB driver
3 *
4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
15 *
16 */
17#include <linux/interrupt.h>
18
19#include "common.h"
20#include "mod.h"
21
22#define usbhs_priv_to_modinfo(priv) (&priv->mod_info)
23#define usbhs_mod_info_call(priv, func, param...) \
24({ \
25 struct usbhs_mod_info *info; \
26 info = usbhs_priv_to_modinfo(priv); \
27 !info->func ? 0 : \
28 info->func(param); \
29})
30
31/*
32 * autonomy
33 *
34 * these functions are used if platform doesn't have external phy.
35 * -> there is no "notify_hotplug" callback from platform
36 * -> call "notify_hotplug" by itself
37 * -> use own interrupt to connect/disconnect
38 * -> it mean module clock is always ON
39 * ~~~~~~~~~~~~~~~~~~~~~~~~~
40 */
41static int usbhsm_autonomy_get_vbus(struct platform_device *pdev)
42{
43 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
44
45 return VBSTS & usbhs_read(priv, INTSTS0);
46}
47
48static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv,
49 struct usbhs_irq_state *irq_state)
50{
51 struct platform_device *pdev = usbhs_priv_to_pdev(priv);
52
53 renesas_usbhs_call_notify_hotplug(pdev);
54
55 return 0;
56}
57
58void usbhs_mod_autonomy_mode(struct usbhs_priv *priv)
59{
60 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
61
62 info->irq_vbus = usbhsm_autonomy_irq_vbus;
63 priv->pfunc.get_vbus = usbhsm_autonomy_get_vbus;
64
65 usbhs_irq_callback_update(priv, NULL);
66}
67
68/*
69 * host / gadget functions
70 *
71 * renesas_usbhs host/gadget can register itself by below functions.
72 * these functions are called when probe
73 *
74 */
75void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *mod, int id)
76{
77 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
78
79 info->mod[id] = mod;
80 mod->priv = priv;
81}
82
83struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id)
84{
85 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
86 struct usbhs_mod *ret = NULL;
87
88 switch (id) {
89 case USBHS_HOST:
90 case USBHS_GADGET:
91 ret = info->mod[id];
92 break;
93 }
94
95 return ret;
96}
97
98int usbhs_mod_is_host(struct usbhs_priv *priv)
99{
100 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
101 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
102
103 if (!mod)
104 return -EINVAL;
105
106 return info->mod[USBHS_HOST] == mod;
107}
108
109struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv)
110{
111 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
112
113 return info->curt;
114}
115
116int usbhs_mod_change(struct usbhs_priv *priv, int id)
117{
118 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
119 struct usbhs_mod *mod = NULL;
120 int ret = 0;
121
122 /* id < 0 mean no current */
123 switch (id) {
124 case USBHS_HOST:
125 case USBHS_GADGET:
126 mod = info->mod[id];
127 break;
128 default:
129 ret = -EINVAL;
130 }
131 info->curt = mod;
132
133 return ret;
134}
135
136static irqreturn_t usbhs_interrupt(int irq, void *data);
137int usbhs_mod_probe(struct usbhs_priv *priv)
138{
139 struct device *dev = usbhs_priv_to_dev(priv);
140 int ret;
141
142 /*
143 * install host/gadget driver
144 */
145 ret = usbhs_mod_host_probe(priv);
146 if (ret < 0)
147 return ret;
148
149 ret = usbhs_mod_gadget_probe(priv);
150 if (ret < 0)
151 goto mod_init_host_err;
152
153 /* irq settings */
154 ret = devm_request_irq(dev, priv->irq, usbhs_interrupt,
155 priv->irqflags, dev_name(dev), priv);
156 if (ret) {
157 dev_err(dev, "irq request err\n");
158 goto mod_init_gadget_err;
159 }
160
161 return ret;
162
163mod_init_gadget_err:
164 usbhs_mod_gadget_remove(priv);
165mod_init_host_err:
166 usbhs_mod_host_remove(priv);
167
168 return ret;
169}
170
171void usbhs_mod_remove(struct usbhs_priv *priv)
172{
173 usbhs_mod_host_remove(priv);
174 usbhs_mod_gadget_remove(priv);
175}
176
177/*
178 * status functions
179 */
180int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state)
181{
182 int state = irq_state->intsts0 & DVSQ_MASK;
183
184 switch (state) {
185 case POWER_STATE:
186 case DEFAULT_STATE:
187 case ADDRESS_STATE:
188 case CONFIGURATION_STATE:
189 return state;
190 }
191
192 return -EIO;
193}
194
195int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
196{
197 /*
198 * return value
199 *
200 * IDLE_SETUP_STAGE
201 * READ_DATA_STAGE
202 * READ_STATUS_STAGE
203 * WRITE_DATA_STAGE
204 * WRITE_STATUS_STAGE
205 * NODATA_STATUS_STAGE
206 * SEQUENCE_ERROR
207 */
208 return (int)irq_state->intsts0 & CTSQ_MASK;
209}
210
211static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
212 struct usbhs_irq_state *state)
213{
214 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
215 u16 intenb0, intenb1;
216 unsigned long flags;
217
218 /******************** spin lock ********************/
219 usbhs_lock(priv, flags);
220 state->intsts0 = usbhs_read(priv, INTSTS0);
221 intenb0 = usbhs_read(priv, INTENB0);
222
223 if (usbhs_mod_is_host(priv)) {
224 state->intsts1 = usbhs_read(priv, INTSTS1);
225 intenb1 = usbhs_read(priv, INTENB1);
226 } else {
227 state->intsts1 = intenb1 = 0;
228 }
229
230 /* mask */
231 if (mod) {
232 state->brdysts = usbhs_read(priv, BRDYSTS);
233 state->nrdysts = usbhs_read(priv, NRDYSTS);
234 state->bempsts = usbhs_read(priv, BEMPSTS);
235
236 state->bempsts &= mod->irq_bempsts;
237 state->brdysts &= mod->irq_brdysts;
238 }
239 usbhs_unlock(priv, flags);
240 /******************** spin unlock ******************/
241
242 /*
243 * Check whether the irq enable registers and the irq status are set
244 * when IRQF_SHARED is set.
245 */
246 if (priv->irqflags & IRQF_SHARED) {
247 if (!(intenb0 & state->intsts0) &&
248 !(intenb1 & state->intsts1) &&
249 !(state->bempsts) &&
250 !(state->brdysts))
251 return -EIO;
252 }
253
254 return 0;
255}
256
257/*
258 * interrupt
259 */
260#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
261#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
262static irqreturn_t usbhs_interrupt(int irq, void *data)
263{
264 struct usbhs_priv *priv = data;
265 struct usbhs_irq_state irq_state;
266
267 if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
268 return IRQ_NONE;
269
270 /*
271 * clear interrupt
272 *
273 * The hardware is _very_ picky to clear interrupt bit.
274 * Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
275 *
276 * see
277 * "Operation"
278 * - "Control Transfer (DCP)"
279 * - Function :: VALID bit should 0
280 */
281 usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
282 if (usbhs_mod_is_host(priv))
283 usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
284
285 usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
286 usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
287 usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
288
289 /*
290 * call irq callback functions
291 * see also
292 * usbhs_irq_setting_update
293 */
294
295 /* INTSTS0 */
296 if (irq_state.intsts0 & VBINT)
297 usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
298
299 if (irq_state.intsts0 & DVST)
300 usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
301
302 if (irq_state.intsts0 & CTRT)
303 usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
304
305 if (irq_state.intsts0 & BEMP)
306 usbhs_mod_call(priv, irq_empty, priv, &irq_state);
307
308 if (irq_state.intsts0 & BRDY)
309 usbhs_mod_call(priv, irq_ready, priv, &irq_state);
310
311 if (usbhs_mod_is_host(priv)) {
312 /* INTSTS1 */
313 if (irq_state.intsts1 & ATTCH)
314 usbhs_mod_call(priv, irq_attch, priv, &irq_state);
315
316 if (irq_state.intsts1 & DTCH)
317 usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
318
319 if (irq_state.intsts1 & SIGN)
320 usbhs_mod_call(priv, irq_sign, priv, &irq_state);
321
322 if (irq_state.intsts1 & SACK)
323 usbhs_mod_call(priv, irq_sack, priv, &irq_state);
324 }
325 return IRQ_HANDLED;
326}
327
328void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
329{
330 u16 intenb0 = 0;
331 u16 intenb1 = 0;
332 struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
333
334 /*
335 * BEMPENB/BRDYENB are picky.
336 * below method is required
337 *
338 * - clear INTSTS0
339 * - update BEMPENB/BRDYENB
340 * - update INTSTS0
341 */
342 usbhs_write(priv, INTENB0, 0);
343 if (usbhs_mod_is_host(priv))
344 usbhs_write(priv, INTENB1, 0);
345
346 usbhs_write(priv, BEMPENB, 0);
347 usbhs_write(priv, BRDYENB, 0);
348
349 /*
350 * see also
351 * usbhs_interrupt
352 */
353
354 /*
355 * it don't enable DVSE (intenb0) here
356 * but "mod->irq_dev_state" will be called.
357 */
358 if (info->irq_vbus)
359 intenb0 |= VBSE;
360
361 if (mod) {
362 /*
363 * INTSTS0
364 */
365 if (mod->irq_ctrl_stage)
366 intenb0 |= CTRE;
367
368 if (mod->irq_empty && mod->irq_bempsts) {
369 usbhs_write(priv, BEMPENB, mod->irq_bempsts);
370 intenb0 |= BEMPE;
371 }
372
373 if (mod->irq_ready && mod->irq_brdysts) {
374 usbhs_write(priv, BRDYENB, mod->irq_brdysts);
375 intenb0 |= BRDYE;
376 }
377
378 if (usbhs_mod_is_host(priv)) {
379 /*
380 * INTSTS1
381 */
382 if (mod->irq_attch)
383 intenb1 |= ATTCHE;
384
385 if (mod->irq_dtch)
386 intenb1 |= DTCHE;
387
388 if (mod->irq_sign)
389 intenb1 |= SIGNE;
390
391 if (mod->irq_sack)
392 intenb1 |= SACKE;
393 }
394 }
395
396 if (intenb0)
397 usbhs_write(priv, INTENB0, intenb0);
398
399 if (usbhs_mod_is_host(priv) && intenb1)
400 usbhs_write(priv, INTENB1, intenb1);
401}
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}