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[/] [gecko3/] [trunk/] [GECKO3COM/] [gecko3com-fw/] [firmware/] [lib/] [usb_common.c] - Blame information for rev 17

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/* -*- c++ -*- */
/*
 * Copyright 2003 Free Software Foundation, Inc.
 *
 * This file is part of GNU Radio
 *
 * GNU Radio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * GNU Radio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */
 
#include <stdint.h>
#include <stdio.h>
 
#include "usb_common.h"
#include "fx2regs.h"
#include "syncdelay.h"
#include "fx2utils.h"
#include "isr.h"
#include "usb_descriptors.h"
#include "usb_requests.h"
#include "debugprint.h"
#ifdef USB_DFU_SUPPORT
#include "usb_dfu.h"
#endif
 
extern xdata char str0[];
extern xdata char str1[];
extern xdata char str2[];
extern xdata char str3[];
extern xdata char str4[];
extern xdata char str5[];
 
 
#define MSB(x)  (((unsigned short) x) >> 8)
#define LSB(x)  (((unsigned short) x) & 0xff)
 
volatile bit _usb_got_SUDAV;
 
unsigned char   _usb_config = 0;
unsigned char   _usb_alt_setting = 0;    // FIXME really 1/interface
 
xdata unsigned char *current_device_descr;
xdata unsigned char *current_devqual_descr;
xdata unsigned char *current_config_descr;
xdata unsigned char *other_config_descr;
 
static void
setup_descriptors (void)
{
  if (USBCS & bmHSM){           // high speed mode
    current_device_descr  = high_speed_device_descr;
    current_devqual_descr = high_speed_devqual_descr;
    current_config_descr  = high_speed_config_descr;
    other_config_descr    = full_speed_config_descr;
  }
  else {
    current_device_descr  = full_speed_device_descr;
    current_devqual_descr = full_speed_devqual_descr;
    current_config_descr  = full_speed_config_descr;
    other_config_descr    = high_speed_config_descr;
  }
 
  // whack the type fields
  // FIXME, may not be required.
  // current_config_descr[1] = DT_CONFIG;
  // other_config_descr[1]   = DT_OTHER_SPEED;
}
 
static void
isr_SUDAV (void) interrupt
{
  clear_usb_irq ();
  _usb_got_SUDAV = 1;
}
 
static void
isr_USBRESET (void) interrupt
{
  clear_usb_irq ();
  setup_descriptors ();
 
#ifdef USB_DFU_SUPPORT
  usb_dfu_state = DFU_STATE_appIDLE;
#endif
}
 
static void
isr_HIGHSPEED (void) interrupt
{
  clear_usb_irq ();
  setup_descriptors ();
#ifdef USB_DFU_SUPPORT
  usb_dfu_state = DFU_STATE_appIDLE;
#endif
}
 
void
usb_install_handlers (void)
{
  setup_descriptors ();     // ensure that they're set before use
 
  hook_uv (UV_SUDAV,     (unsigned short) isr_SUDAV);
  hook_uv (UV_USBRESET,  (unsigned short) isr_USBRESET);
  hook_uv (UV_HIGHSPEED, (unsigned short) isr_HIGHSPEED);
 
  USBIE = bmSUDAV | bmURES | bmHSGRANT;
}
 
/** On the FX2 the only plausible endpoints are 0, 1, 2, 4, 6, 8
 * This doesn't check to see that they're enabled */
unsigned char
plausible_endpoint (unsigned char ep)
{
  ep &= ~0x80;  // ignore direction bit
 
  if (ep > 8)
    return 0;
 
  if (ep == 1)
    return 1;
 
  return (ep & 0x1) == 0;        // must be even
}
 
/** return pointer to control and status register for endpoint.
 * only called with plausible_endpoints */
xdata volatile unsigned char *
epcs (unsigned char ep)
{
  if (ep == 0x01)               // ep1 has different in and out CS regs
    return &EP1OUTCS;
 
  if (ep == 0x81)
    return &EP1INCS;
 
  ep &= ~0x80;                  // ignore direction bit
 
  if (ep == 0x00)               // ep0
    return &EP0CS;
 
  //return EP2CS + (ep >> 1);   // 2, 4, 6, 8 are consecutive
  return &EP1INCS + (ep >> 1);  // EP2CS -1; 2, 4, 6, 8 are consecutive
}
 
#ifdef USB_DFU_SUPPORT
static void
setup_dfu_descriptors (void)
{
  current_device_descr  = dfu_mode_device_descr;
  current_config_descr  = dfu_mode_config_descr;
}
 
static void
isr_DFURESET (void) interrupt
{
  clear_usb_irq ();
  setup_dfu_descriptors ();
  usb_dfu_state = DFU_STATE_dfuIDLE;
}
 
void
usb_toggle_dfu_handlers (void)
{
  if(usb_dfu_state == DFU_STATE_appIDLE){
    hook_uv (UV_USBRESET,  (unsigned short) isr_DFURESET);
    hook_uv (UV_HIGHSPEED, (unsigned short) isr_DFURESET);
  }
  else {
  hook_uv (UV_USBRESET,  (unsigned short) isr_USBRESET);
  hook_uv (UV_HIGHSPEED, (unsigned short) isr_HIGHSPEED);
  usb_dfu_state = DFU_STATE_appIDLE;
  }
}
#endif
 
void
usb_handle_setup_packet (void)
{
  _usb_got_SUDAV = 0;
 
  switch (bRequestType & bmRT_TYPE_MASK){
 
  case bmRT_TYPE_CLASS:
    // call the application code class requests.
    // If it handles the command it returns non-zero
 
    if (!app_class_cmd ())
      fx2_stall_ep0 ();
    break;
 
  case bmRT_TYPE_RESERVED:
    fx2_stall_ep0 ();           // we don't handle these.  indicate error
    break;
 
  case bmRT_TYPE_VENDOR:
    // call the application code for vendor commands.
    // If it handles the command it returns non-zero
 
    if (!app_vendor_cmd ())
      fx2_stall_ep0 ();
    break;
 
  case bmRT_TYPE_STD:
    // these are the standard requests...
 
    if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_IN){
 
      ////////////////////////////////////
      //    handle the IN requests
      ////////////////////////////////////
 
      switch (bRequest){
 
      case RQ_GET_CONFIG:
        EP0BUF[0] = _usb_config; // FIXME app should handle
        EP0BCH = 0;
        EP0BCL = 1;
        break;
 
      // --------------------------------
 
      case RQ_GET_INTERFACE:
        EP0BUF[0] = _usb_alt_setting;    // FIXME app should handle
        EP0BCH = 0;
        EP0BCL = 1;
        break;
 
      // --------------------------------
 
      case RQ_GET_DESCR:
        switch (wValueH){
 
        case DT_DEVICE:
          SUDPTRH = MSB (current_device_descr);
          SUDPTRL = LSB (current_device_descr);
          break;
 
        case DT_DEVQUAL:
          SUDPTRH = MSB (current_devqual_descr);
          SUDPTRL = LSB (current_devqual_descr);
          break;
 
        case DT_CONFIG:
          if (0 && wValueL != 1) // FIXME only a single configuration
            fx2_stall_ep0 ();
          else {
            SUDPTRH = MSB (current_config_descr);
            SUDPTRL = LSB (current_config_descr);
          }
          break;
 
        case DT_OTHER_SPEED:
          if (0 && wValueL != 1) // FIXME only a single configuration
            fx2_stall_ep0 ();
          else {
            SUDPTRH = MSB (other_config_descr);
            SUDPTRL = LSB (other_config_descr);
          }
          break;
 
        case DT_STRING:
          if (wValueL >= nstring_descriptors)
            fx2_stall_ep0 ();
          else {
            xdata char *p = string_descriptors[wValueL];
            SUDPTRH = MSB (p);
            SUDPTRL = LSB (p);
          }
          break;
 
#ifdef USB_DFU_SUPPORT
        case DT_DFU_FUNCTIONAL:
          SUDPTRH = MSB (dfu_mode_functional_descr);
          SUDPTRL = LSB (dfu_mode_functional_descr);
          break;
#endif
 
        default:
          fx2_stall_ep0 ();     // invalid request
          break;
        }
        break;
 
      // --------------------------------
 
      case RQ_GET_STATUS:
        switch (bRequestType & bmRT_RECIP_MASK){
        case bmRT_RECIP_DEVICE:
          EP0BUF[0] = bmGSDA_SELF_POWERED;       // FIXME app should handle
          EP0BUF[1] = 0;
          EP0BCH = 0;
          EP0BCL = 2;
          break;
 
        case bmRT_RECIP_INTERFACE:
          EP0BUF[0] = 0;
          EP0BUF[1] = 0;
          EP0BCH = 0;
          EP0BCL = 2;
          break;
 
        case bmRT_RECIP_ENDPOINT:
          if (plausible_endpoint (wIndexL)){
            EP0BUF[0] = *epcs (wIndexL) & bmEPSTALL;
            EP0BUF[1] = 0;
            EP0BCH = 0;
            EP0BCL = 2;
          }
          else
            fx2_stall_ep0 ();
          break;
 
        default:
          fx2_stall_ep0 ();
          break;
        }
        break;
 
      // --------------------------------
 
      case RQ_SYNCH_FRAME:      // not implemented
      default:
        fx2_stall_ep0 ();
        break;
      }
    }
 
    else {
 
      ////////////////////////////////////
      //    handle the OUT requests
      ////////////////////////////////////
 
      switch (bRequest){
 
      case RQ_SET_CONFIG:
        _usb_config = wValueL;          // FIXME app should handle
        break;
 
      case RQ_SET_INTERFACE:
        _usb_alt_setting = wValueL;     // FIXME app should handle
        break;
 
      // --------------------------------
 
      case RQ_CLEAR_FEATURE:
        switch (bRequestType & bmRT_RECIP_MASK){
 
        case bmRT_RECIP_DEVICE:
          switch (wValueL){
          case FS_DEV_REMOTE_WAKEUP:
          default:
            fx2_stall_ep0 ();
          }
          break;
 
        case bmRT_RECIP_ENDPOINT:
          if (wValueL == FS_ENDPOINT_HALT && plausible_endpoint (wIndexL)){
            *epcs (wIndexL) &= ~bmEPSTALL;
            EP2CS &= ~bmEPSTALL;
            fx2_reset_data_toggle (wIndexL);
          }
          else
            fx2_stall_ep0 ();
          break;
 
        default:
          fx2_stall_ep0 ();
          break;
        }
        break;
 
      // --------------------------------
 
      case RQ_SET_FEATURE:
        switch (bRequestType & bmRT_RECIP_MASK){
 
        case bmRT_RECIP_DEVICE:
          switch (wValueL){
          case FS_TEST_MODE:
            // hardware handles this after we complete SETUP phase handshake
            break;
 
          case FS_DEV_REMOTE_WAKEUP:
          default:
            fx2_stall_ep0 ();
            break;
          }
        }
        break;
 
      case bmRT_RECIP_ENDPOINT:
        switch (wValueL){
        case FS_ENDPOINT_HALT:
          if (plausible_endpoint (wIndexL))
            *epcs (wIndexL) |= bmEPSTALL;
          else
            fx2_stall_ep0 ();
          break;
 
        default:
          fx2_stall_ep0 ();
          break;
        }
        break;
 
      // --------------------------------
 
      case RQ_SET_ADDRESS:      // handled by fx2 hardware
      case RQ_SET_DESCR:        // not implemented
      default:
        fx2_stall_ep0 ();
      }
 
    }
    break;
 
  }     // bmRT_TYPE_MASK
 
  // ack handshake phase of device request
  EP0CS |= bmHSNAK;
}

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[/] [gecko3/] [trunk/] [GECKO3COM/] [gecko3com-fw/] [firmware/] [lib/] [usb_common.c] - Blame information for rev 17

Line No.	Rev	Author	Line
1	9	nussgipfel	`/* -- c++ -- */`
2			`/*`
3			`* Copyright 2003 Free Software Foundation, Inc.`
4			`*`
5			`* This file is part of GNU Radio`
6			`*`
7			`* GNU Radio is free software; you can redistribute it and/or modify`
8			`* it under the terms of the GNU General Public License as published by`
9			`* the Free Software Foundation; either version 3, or (at your option)`
10			`* any later version.`
11			`*`
12			`* GNU Radio is distributed in the hope that it will be useful,`
13			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
14			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
15			`* GNU General Public License for more details.`
16			`*`
17			`* You should have received a copy of the GNU General Public License`
18			`* along with GNU Radio; see the file COPYING. If not, write to`
19			`* the Free Software Foundation, Inc., 51 Franklin Street,`
20			`* Boston, MA 02110-1301, USA.`
21			`*/`
22
23			`#include <stdint.h>`
24			`#include <stdio.h>`
25
26			`#include "usb_common.h"`
27			`#include "fx2regs.h"`
28			`#include "syncdelay.h"`
29			`#include "fx2utils.h"`
30			`#include "isr.h"`
31			`#include "usb_descriptors.h"`
32			`#include "usb_requests.h"`
33			`#include "debugprint.h"`
34			`#ifdef USB_DFU_SUPPORT`
35			`#include "usb_dfu.h"`
36			`#endif`
37
38			`extern xdata char str0[];`
39			`extern xdata char str1[];`
40			`extern xdata char str2[];`
41			`extern xdata char str3[];`
42			`extern xdata char str4[];`
43			`extern xdata char str5[];`
44
45
46			`#define MSB(x) (((unsigned short) x) >> 8)`
47			`#define LSB(x) (((unsigned short) x) & 0xff)`
48
49			`volatile bit _usb_got_SUDAV;`
50
51			`unsigned char _usb_config = 0;`
52			`unsigned char _usb_alt_setting = 0; // FIXME really 1/interface`
53
54			`xdata unsigned char *current_device_descr;`
55			`xdata unsigned char *current_devqual_descr;`
56			`xdata unsigned char *current_config_descr;`
57			`xdata unsigned char *other_config_descr;`
58
59			`static void`
60			`setup_descriptors (void)`
61			`{`
62			`if (USBCS & bmHSM){ // high speed mode`
63			`current_device_descr = high_speed_device_descr;`
64			`current_devqual_descr = high_speed_devqual_descr;`
65			`current_config_descr = high_speed_config_descr;`
66			`other_config_descr = full_speed_config_descr;`
67			`}`
68			`else {`
69			`current_device_descr = full_speed_device_descr;`
70			`current_devqual_descr = full_speed_devqual_descr;`
71			`current_config_descr = full_speed_config_descr;`
72			`other_config_descr = high_speed_config_descr;`
73			`}`
74
75			`// whack the type fields`
76			`// FIXME, may not be required.`
77			`// current_config_descr[1] = DT_CONFIG;`
78			`// other_config_descr[1] = DT_OTHER_SPEED;`
79			`}`
80
81			`static void`
82			`isr_SUDAV (void) interrupt`
83			`{`
84			`clear_usb_irq ();`
85			`_usb_got_SUDAV = 1;`
86			`}`
87
88			`static void`
89			`isr_USBRESET (void) interrupt`
90			`{`
91			`clear_usb_irq ();`
92			`setup_descriptors ();`
93
94			`#ifdef USB_DFU_SUPPORT`
95			`usb_dfu_state = DFU_STATE_appIDLE;`
96			`#endif`
97			`}`
98
99			`static void`
100			`isr_HIGHSPEED (void) interrupt`
101			`{`
102			`clear_usb_irq ();`
103			`setup_descriptors ();`
104			`#ifdef USB_DFU_SUPPORT`
105			`usb_dfu_state = DFU_STATE_appIDLE;`
106			`#endif`
107			`}`
108
109			`void`
110			`usb_install_handlers (void)`
111			`{`
112			`setup_descriptors (); // ensure that they're set before use`
113
114			`hook_uv (UV_SUDAV, (unsigned short) isr_SUDAV);`
115			`hook_uv (UV_USBRESET, (unsigned short) isr_USBRESET);`
116			`hook_uv (UV_HIGHSPEED, (unsigned short) isr_HIGHSPEED);`
117
118			`USBIE = bmSUDAV \| bmURES \| bmHSGRANT;`
119			`}`
120
121			`/** On the FX2 the only plausible endpoints are 0, 1, 2, 4, 6, 8`
122			`* This doesn't check to see that they're enabled */`
123			`unsigned char`
124			`plausible_endpoint (unsigned char ep)`
125			`{`
126			`ep &= ~0x80; // ignore direction bit`
127
128			`if (ep > 8)`
129			`return 0;`
130
131			`if (ep == 1)`
132			`return 1;`
133
134			`return (ep & 0x1) == 0; // must be even`
135			`}`
136
137			`/** return pointer to control and status register for endpoint.`
138			`* only called with plausible_endpoints */`
139			`xdata volatile unsigned char *`
140			`epcs (unsigned char ep)`
141			`{`
142			`if (ep == 0x01) // ep1 has different in and out CS regs`
143			`return &EP1OUTCS;`
144
145			`if (ep == 0x81)`
146			`return &EP1INCS;`
147
148			`ep &= ~0x80; // ignore direction bit`
149
150			`if (ep == 0x00) // ep0`
151			`return &EP0CS;`
152
153			`//return EP2CS + (ep >> 1); // 2, 4, 6, 8 are consecutive`
154			`return &EP1INCS + (ep >> 1); // EP2CS -1; 2, 4, 6, 8 are consecutive`
155			`}`
156
157			`#ifdef USB_DFU_SUPPORT`
158			`static void`
159			`setup_dfu_descriptors (void)`
160			`{`
161			`current_device_descr = dfu_mode_device_descr;`
162			`current_config_descr = dfu_mode_config_descr;`
163			`}`
164
165			`static void`
166			`isr_DFURESET (void) interrupt`
167			`{`
168			`clear_usb_irq ();`
169			`setup_dfu_descriptors ();`
170			`usb_dfu_state = DFU_STATE_dfuIDLE;`
171			`}`
172
173			`void`
174			`usb_toggle_dfu_handlers (void)`
175			`{`
176			`if(usb_dfu_state == DFU_STATE_appIDLE){`
177			`hook_uv (UV_USBRESET, (unsigned short) isr_DFURESET);`
178			`hook_uv (UV_HIGHSPEED, (unsigned short) isr_DFURESET);`
179			`}`
180			`else {`
181			`hook_uv (UV_USBRESET, (unsigned short) isr_USBRESET);`
182			`hook_uv (UV_HIGHSPEED, (unsigned short) isr_HIGHSPEED);`
183			`usb_dfu_state = DFU_STATE_appIDLE;`
184			`}`
185			`}`
186			`#endif`
187
188			`void`
189			`usb_handle_setup_packet (void)`
190			`{`
191			`_usb_got_SUDAV = 0;`
192
193			`switch (bRequestType & bmRT_TYPE_MASK){`
194
195			`case bmRT_TYPE_CLASS:`
196			`// call the application code class requests.`
197			`// If it handles the command it returns non-zero`
198
199			`if (!app_class_cmd ())`
200			`fx2_stall_ep0 ();`
201			`break;`
202
203			`case bmRT_TYPE_RESERVED:`
204			`fx2_stall_ep0 (); // we don't handle these. indicate error`
205			`break;`
206
207			`case bmRT_TYPE_VENDOR:`
208			`// call the application code for vendor commands.`
209			`// If it handles the command it returns non-zero`
210
211			`if (!app_vendor_cmd ())`
212			`fx2_stall_ep0 ();`
213			`break;`
214
215			`case bmRT_TYPE_STD:`
216			`// these are the standard requests...`
217
218			`if ((bRequestType & bmRT_DIR_MASK) == bmRT_DIR_IN){`
219
220			`////////////////////////////////////`
221			`// handle the IN requests`
222			`////////////////////////////////////`
223
224			`switch (bRequest){`
225
226			`case RQ_GET_CONFIG:`
227			`EP0BUF[0] = _usb_config; // FIXME app should handle`
228			`EP0BCH = 0;`
229			`EP0BCL = 1;`
230			`break;`
231
232			`// --------------------------------`
233
234			`case RQ_GET_INTERFACE:`
235			`EP0BUF[0] = _usb_alt_setting; // FIXME app should handle`
236			`EP0BCH = 0;`
237			`EP0BCL = 1;`
238			`break;`
239
240			`// --------------------------------`
241
242			`case RQ_GET_DESCR:`
243			`switch (wValueH){`
244
245			`case DT_DEVICE:`
246			`SUDPTRH = MSB (current_device_descr);`
247			`SUDPTRL = LSB (current_device_descr);`
248			`break;`
249
250			`case DT_DEVQUAL:`
251			`SUDPTRH = MSB (current_devqual_descr);`
252			`SUDPTRL = LSB (current_devqual_descr);`
253			`break;`
254
255			`case DT_CONFIG:`
256			`if (0 && wValueL != 1) // FIXME only a single configuration`
257			`fx2_stall_ep0 ();`
258			`else {`
259			`SUDPTRH = MSB (current_config_descr);`
260			`SUDPTRL = LSB (current_config_descr);`
261			`}`
262			`break;`
263
264			`case DT_OTHER_SPEED:`
265			`if (0 && wValueL != 1) // FIXME only a single configuration`
266			`fx2_stall_ep0 ();`
267			`else {`
268			`SUDPTRH = MSB (other_config_descr);`
269			`SUDPTRL = LSB (other_config_descr);`
270			`}`
271			`break;`
272
273			`case DT_STRING:`
274			`if (wValueL >= nstring_descriptors)`
275			`fx2_stall_ep0 ();`
276			`else {`
277			`xdata char *p = string_descriptors[wValueL];`
278			`SUDPTRH = MSB (p);`
279			`SUDPTRL = LSB (p);`
280			`}`
281			`break;`
282
283			`#ifdef USB_DFU_SUPPORT`
284			`case DT_DFU_FUNCTIONAL:`
285			`SUDPTRH = MSB (dfu_mode_functional_descr);`
286			`SUDPTRL = LSB (dfu_mode_functional_descr);`
287			`break;`
288			`#endif`
289
290			`default:`
291			`fx2_stall_ep0 (); // invalid request`
292			`break;`
293			`}`
294			`break;`
295
296			`// --------------------------------`
297
298			`case RQ_GET_STATUS:`
299			`switch (bRequestType & bmRT_RECIP_MASK){`
300			`case bmRT_RECIP_DEVICE:`
301			`EP0BUF[0] = bmGSDA_SELF_POWERED; // FIXME app should handle`
302			`EP0BUF[1] = 0;`
303			`EP0BCH = 0;`
304			`EP0BCL = 2;`
305			`break;`
306
307			`case bmRT_RECIP_INTERFACE:`
308			`EP0BUF[0] = 0;`
309			`EP0BUF[1] = 0;`
310			`EP0BCH = 0;`
311			`EP0BCL = 2;`
312			`break;`
313
314			`case bmRT_RECIP_ENDPOINT:`
315			`if (plausible_endpoint (wIndexL)){`
316			`EP0BUF[0] = *epcs (wIndexL) & bmEPSTALL;`
317			`EP0BUF[1] = 0;`
318			`EP0BCH = 0;`
319			`EP0BCL = 2;`
320			`}`
321			`else`
322			`fx2_stall_ep0 ();`
323			`break;`
324
325			`default:`
326			`fx2_stall_ep0 ();`
327			`break;`
328			`}`
329			`break;`
330
331			`// --------------------------------`
332
333			`case RQ_SYNCH_FRAME: // not implemented`
334			`default:`
335			`fx2_stall_ep0 ();`
336			`break;`
337			`}`
338			`}`
339
340			`else {`
341
342			`////////////////////////////////////`
343			`// handle the OUT requests`
344			`////////////////////////////////////`
345
346			`switch (bRequest){`
347
348			`case RQ_SET_CONFIG:`
349			`_usb_config = wValueL; // FIXME app should handle`
350			`break;`
351
352			`case RQ_SET_INTERFACE:`
353			`_usb_alt_setting = wValueL; // FIXME app should handle`
354			`break;`
355
356			`// --------------------------------`
357
358			`case RQ_CLEAR_FEATURE:`
359			`switch (bRequestType & bmRT_RECIP_MASK){`
360
361			`case bmRT_RECIP_DEVICE:`
362			`switch (wValueL){`
363			`case FS_DEV_REMOTE_WAKEUP:`
364			`default:`
365			`fx2_stall_ep0 ();`
366			`}`
367			`break;`
368
369			`case bmRT_RECIP_ENDPOINT:`
370			`if (wValueL == FS_ENDPOINT_HALT && plausible_endpoint (wIndexL)){`
371			`*epcs (wIndexL) &= ~bmEPSTALL;`
372			`EP2CS &= ~bmEPSTALL;`
373			`fx2_reset_data_toggle (wIndexL);`
374			`}`
375			`else`
376			`fx2_stall_ep0 ();`
377			`break;`
378
379			`default:`
380			`fx2_stall_ep0 ();`
381			`break;`
382			`}`
383			`break;`
384
385			`// --------------------------------`
386
387			`case RQ_SET_FEATURE:`
388			`switch (bRequestType & bmRT_RECIP_MASK){`
389
390			`case bmRT_RECIP_DEVICE:`
391			`switch (wValueL){`
392			`case FS_TEST_MODE:`
393			`// hardware handles this after we complete SETUP phase handshake`
394			`break;`
395
396			`case FS_DEV_REMOTE_WAKEUP:`
397			`default:`
398			`fx2_stall_ep0 ();`
399			`break;`
400			`}`
401			`}`
402			`break;`
403
404			`case bmRT_RECIP_ENDPOINT:`
405			`switch (wValueL){`
406			`case FS_ENDPOINT_HALT:`
407			`if (plausible_endpoint (wIndexL))`
408			`*epcs (wIndexL) \|= bmEPSTALL;`
409			`else`
410			`fx2_stall_ep0 ();`
411			`break;`
412
413			`default:`
414			`fx2_stall_ep0 ();`
415			`break;`
416			`}`
417			`break;`
418
419			`// --------------------------------`
420
421			`case RQ_SET_ADDRESS: // handled by fx2 hardware`
422			`case RQ_SET_DESCR: // not implemented`
423			`default:`
424			`fx2_stall_ep0 ();`
425			`}`
426
427			`}`
428			`break;`
429
430			`} // bmRT_TYPE_MASK`
431
432			`// ack handshake phase of device request`
433			`EP0CS \|= bmHSNAK;`
434			`}`