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1 /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
2
3 This software may be distributed and modified under the terms of the GNU
4 General Public License version 2 (GPL2) as published by the Free Software
5 Foundation and appearing in the file GPL2.TXT included in the packaging of
6 this file. Please note that GPL2 Section 2[b] requires that all works based
7 on this software must also be made publicly available under the terms of
8 the GPL2 ("Copyleft").
9
10 Contact information
11 -------------------
12
13 Circuits At Home, LTD
14 Web      :  http://www.circuitsathome.com
15 e-mail   :  support@circuitsathome.com
16  */
17 #if !defined(__USBHUB_H__)
18 #define __USBHUB_H__
19
20 #include "Usb.h"
21
22 #define USB_DESCRIPTOR_HUB                      0x09 // Hub descriptor type
23
24 // Hub Requests
25 #define bmREQ_CLEAR_HUB_FEATURE                 USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
26 #define bmREQ_CLEAR_PORT_FEATURE                USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
27 #define bmREQ_CLEAR_TT_BUFFER                   USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
28 #define bmREQ_GET_HUB_DESCRIPTOR                USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
29 #define bmREQ_GET_HUB_STATUS                    USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
30 #define bmREQ_GET_PORT_STATUS                   USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
31 #define bmREQ_RESET_TT                          USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
32 #define bmREQ_SET_HUB_DESCRIPTOR                USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
33 #define bmREQ_SET_HUB_FEATURE                   USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
34 #define bmREQ_SET_PORT_FEATURE                  USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
35 #define bmREQ_GET_TT_STATE                      USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
36 #define bmREQ_STOP_TT                           USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
37
38 // Hub Class Requests
39 #define HUB_REQUEST_CLEAR_TT_BUFFER             8
40 #define HUB_REQUEST_RESET_TT                    9
41 #define HUB_REQUEST_GET_TT_STATE                10
42 #define HUB_REQUEST_STOP_TT                     11
43
44 // Hub Features
45 #define HUB_FEATURE_C_HUB_LOCAL_POWER           0
46 #define HUB_FEATURE_C_HUB_OVER_CURRENT          1
47 #define HUB_FEATURE_PORT_CONNECTION             0
48 #define HUB_FEATURE_PORT_ENABLE                 1
49 #define HUB_FEATURE_PORT_SUSPEND                2
50 #define HUB_FEATURE_PORT_OVER_CURRENT           3
51 #define HUB_FEATURE_PORT_RESET                  4
52 #define HUB_FEATURE_PORT_POWER                  8
53 #define HUB_FEATURE_PORT_LOW_SPEED              9
54 #define HUB_FEATURE_C_PORT_CONNECTION           16
55 #define HUB_FEATURE_C_PORT_ENABLE               17
56 #define HUB_FEATURE_C_PORT_SUSPEND              18
57 #define HUB_FEATURE_C_PORT_OVER_CURRENT         19
58 #define HUB_FEATURE_C_PORT_RESET                20
59 #define HUB_FEATURE_PORT_TEST                   21
60 #define HUB_FEATURE_PORT_INDICATOR              22
61
62 // Hub Port Test Modes
63 #define HUB_PORT_TEST_MODE_J                    1
64 #define HUB_PORT_TEST_MODE_K                    2
65 #define HUB_PORT_TEST_MODE_SE0_NAK              3
66 #define HUB_PORT_TEST_MODE_PACKET               4
67 #define HUB_PORT_TEST_MODE_FORCE_ENABLE         5
68
69 // Hub Port Indicator Color
70 #define HUB_PORT_INDICATOR_AUTO                 0
71 #define HUB_PORT_INDICATOR_AMBER                1
72 #define HUB_PORT_INDICATOR_GREEN                2
73 #define HUB_PORT_INDICATOR_OFF                  3
74
75 // Hub Port Status Bitmasks
76 #define bmHUB_PORT_STATUS_PORT_CONNECTION       0x0001
77 #define bmHUB_PORT_STATUS_PORT_ENABLE           0x0002
78 #define bmHUB_PORT_STATUS_PORT_SUSPEND          0x0004
79 #define bmHUB_PORT_STATUS_PORT_OVER_CURRENT     0x0008
80 #define bmHUB_PORT_STATUS_PORT_RESET            0x0010
81 #define bmHUB_PORT_STATUS_PORT_POWER            0x0100
82 #define bmHUB_PORT_STATUS_PORT_LOW_SPEED        0x0200
83 #define bmHUB_PORT_STATUS_PORT_HIGH_SPEED       0x0400
84 #define bmHUB_PORT_STATUS_PORT_TEST             0x0800
85 #define bmHUB_PORT_STATUS_PORT_INDICATOR        0x1000
86
87 // Hub Port Status Change Bitmasks (used one byte instead of two)
88 #define bmHUB_PORT_STATUS_C_PORT_CONNECTION     0x0001
89 #define bmHUB_PORT_STATUS_C_PORT_ENABLE         0x0002
90 #define bmHUB_PORT_STATUS_C_PORT_SUSPEND        0x0004
91 #define bmHUB_PORT_STATUS_C_PORT_OVER_CURRENT   0x0008
92 #define bmHUB_PORT_STATUS_C_PORT_RESET          0x0010
93
94 // Hub Status Bitmasks (used one byte instead of two)
95 #define bmHUB_STATUS_LOCAL_POWER_SOURCE         0x01
96 #define bmHUB_STATUS_OVER_CURRENT               0x12
97
98 // Hub Status Change Bitmasks (used one byte instead of two)
99 #define bmHUB_STATUS_C_LOCAL_POWER_SOURCE       0x01
100 #define bmHUB_STATUS_C_OVER_CURRENT             0x12
101
102
103 // Hub Port Configuring Substates
104 #define USB_STATE_HUB_PORT_CONFIGURING          0xb0
105 #define USB_STATE_HUB_PORT_POWERED_OFF          0xb1
106 #define USB_STATE_HUB_PORT_WAIT_FOR_POWER_GOOD  0xb2
107 #define USB_STATE_HUB_PORT_DISCONNECTED         0xb3
108 #define USB_STATE_HUB_PORT_DISABLED             0xb4
109 #define USB_STATE_HUB_PORT_RESETTING            0xb5
110 #define USB_STATE_HUB_PORT_ENABLED              0xb6
111
112 // Additional Error Codes
113 #define HUB_ERROR_PORT_HAS_BEEN_RESET           0xb1
114
115 // The bit mask to check for all necessary state bits
116 #define bmHUB_PORT_STATUS_ALL_MAIN              ((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE | bmHUB_PORT_STATUS_C_PORT_SUSPEND | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND)
117
118 // Bit mask to check for DISABLED state in HubEvent::bmStatus field
119 #define bmHUB_PORT_STATE_CHECK_DISABLED         (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND)
120
121 // Hub Port States
122 #define bmHUB_PORT_STATE_DISABLED               (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
123
124 // Hub Port Events
125 #define bmHUB_PORT_EVENT_CONNECT                (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
126 #define bmHUB_PORT_EVENT_DISCONNECT             (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER)
127 #define bmHUB_PORT_EVENT_RESET_COMPLETE         (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION)
128
129 #define bmHUB_PORT_EVENT_LS_CONNECT             (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
130 #define bmHUB_PORT_EVENT_LS_RESET_COMPLETE      (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
131 #define bmHUB_PORT_EVENT_LS_PORT_ENABLED        (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
132
133 struct HubDescriptor {
134         uint8_t bDescLength; // descriptor length
135         uint8_t bDescriptorType; // descriptor type
136         uint8_t bNbrPorts; // number of ports a hub equiped with
137
138         struct {
139                 uint16_t LogPwrSwitchMode : 2;
140                 uint16_t CompoundDevice : 1;
141                 uint16_t OverCurrentProtectMode : 2;
142                 uint16_t TTThinkTime : 2;
143                 uint16_t PortIndicatorsSupported : 1;
144                 uint16_t Reserved : 8;
145         } __attribute__((packed));
146
147         uint8_t bPwrOn2PwrGood;
148         uint8_t bHubContrCurrent;
149 } __attribute__((packed));
150
151 struct HubEvent {
152
153         union {
154
155                 struct {
156                         uint16_t bmStatus; // port status bits
157                         uint16_t bmChange; // port status change bits
158                 } __attribute__((packed));
159                 uint32_t bmEvent;
160                 uint8_t evtBuff[4];
161         };
162 } __attribute__((packed));
163
164 class USBHub : USBDeviceConfig {
165         static bool bResetInitiated; // True when reset is triggered
166
167         USB *pUsb; // USB class instance pointer
168
169         EpInfo epInfo[2]; // interrupt endpoint info structure
170
171         uint8_t bAddress; // address
172         uint8_t bNbrPorts; // number of ports
173         //        uint8_t bInitState; // initialization state variable
174         uint32_t qNextPollTime; // next poll time
175         bool bPollEnable; // poll enable flag
176
177         uint8_t CheckHubStatus();
178         uint8_t PortStatusChange(uint8_t port, HubEvent &evt);
179
180 public:
181         USBHub(USB *p);
182
183         uint8_t ClearHubFeature(uint8_t fid);
184         uint8_t ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
185         uint8_t GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr);
186         uint8_t GetHubStatus(uint16_t nbytes, uint8_t* dataptr);
187         uint8_t GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
188         uint8_t SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
189         uint8_t SetHubFeature(uint8_t fid);
190         uint8_t SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
191
192         void PrintHubStatus();
193
194         uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
195         uint8_t Release();
196         uint8_t Poll();
197         void ResetHubPort(uint8_t port);
198
199         virtual uint8_t GetAddress() {
200                 return bAddress;
201         };
202
203         virtual bool DEVCLASSOK(uint8_t klass) {
204                 return (klass == 0x09);
205         }
206
207 };
208
209 // Clear Hub Feature
210
211 inline uint8_t USBHub::ClearHubFeature(uint8_t fid) {
212         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_HUB_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
213 }
214 // Clear Port Feature
215
216 inline uint8_t USBHub::ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
217         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_PORT_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, ((0x0000 | port) | (sel << 8)), 0, 0, NULL, NULL));
218 }
219 // Get Hub Descriptor
220
221 inline uint8_t USBHub::GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr) {
222         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_DESCRIPTOR, USB_REQUEST_GET_DESCRIPTOR, index, 0x29, 0, nbytes, nbytes, dataptr, NULL));
223 }
224 // Get Hub Status
225
226 inline uint8_t USBHub::GetHubStatus(uint16_t nbytes, uint8_t* dataptr) {
227         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_STATUS, USB_REQUEST_GET_STATUS, 0, 0, 0x0000, nbytes, nbytes, dataptr, NULL));
228 }
229 // Get Port Status
230
231 inline uint8_t USBHub::GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
232         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_PORT_STATUS, USB_REQUEST_GET_STATUS, 0, 0, port, nbytes, nbytes, dataptr, NULL));
233 }
234 // Set Hub Descriptor
235
236 inline uint8_t USBHub::SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
237         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_DESCRIPTOR, USB_REQUEST_SET_DESCRIPTOR, 0, 0, port, nbytes, nbytes, dataptr, NULL));
238 }
239 // Set Hub Feature
240
241 inline uint8_t USBHub::SetHubFeature(uint8_t fid) {
242         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
243 }
244 // Set Port Feature
245
246 inline uint8_t USBHub::SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
247         return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_PORT_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, (((0x0000 | sel) << 8) | port), 0, 0, NULL, NULL));
248 }
249
250 void PrintHubPortStatus(USB *usbptr, uint8_t addr, uint8_t port, bool print_changes = false);
251
252 #endif // __USBHUB_H__