4 * - Universal Host Controller Interface
10 typedef struct sUHCI_Controller tUHCI_Controller;
11 typedef struct sUHCI_TD tUHCI_TD;
12 typedef struct sUHCI_QH tUHCI_QH;
15 struct sUHCI_Controller
18 * \brief PCI Device ID
23 * \brief IO Base Address
28 * \brief IRQ Number assigned to the device
33 * \brief Number of the last frame to be cleaned
40 * 31:4 - Frame Pointer
43 * 0 - Terminate (Empty Pointer)
48 * \brief Physical Address of the Frame List
58 * \brief Next Entry in list
62 * 2 - Depth/Breadth Select
64 * 0 - Terminate (Last in List)
69 * \brief Control and Status Field
72 * 29 - Short Packet Detect (Input Only)
73 * 28:27 - Number of Errors Allowed
74 * 26 - Low Speed Device (Communicating with a low speed device)
75 * 25 - Isynchonious Select
76 * 24 - Interrupt on Completion (IOC)
80 * 21 - Data Buffer Error
81 * 20 - Babble Detected
83 * 18 - CRC/Timout Error
87 * 10:0 - Actual Length (Number of bytes transfered)
92 * \brief Packet Header
94 * 31:21 - Maximum Length (0=1, Max 0x4FF, 0x7FF=0)
98 * 14:8 - Device Address
99 * 7:0 - PID (Packet Identifcation) - Only 96, E1, 2D allowed
108 * \brief Pointer to the data to send
110 Uint32 BufferPointer;
119 } __attribute__((aligned(16)));
124 * \brief Next Entry in list
129 * 0 - Terminate (Last in List)
135 * \brief Next Entry in list
140 * 0 - Terminate (Last in List)
145 // === ENUMERATIONS ===
148 * \brief USB Command Register
151 * 7 - Maximum Packet Size selector (1: 64 bytes, 0: 32 bytes)
152 * 6 - Configure Flag (No Hardware Effect)
153 * 5 - Software Debug (Don't think it will be needed)
154 * 4 - Force Global Resume
155 * 3 - Enter Global Suspend Mode
156 * 2 - Global Reset (Resets all devices on the bus)
157 * 1 - Host Controller Reset (Reset just the controller)
162 * \brief USB Status Register
165 * 5 - HC Halted, set to 1 when USBCMD:RS is set to 0
166 * 4 - Host Controller Process Error (Errors related to the bus)
167 * 3 - Host System Error (Errors related to the OS/PCI Bus)
168 * 2 - Resume Detect (Set if a RESUME command is sent to the Controller)
169 * 1 - USB Error Interrupt
170 * 0 - USB Interrupts (Set if a transaction with the IOC bit set is completed)
174 * \brief USB Interrupt Enable Register
177 * 3 - Short Packet Interrupt Enable
178 * 2 - Interrupt on Complete (IOC) Enable
179 * 1 - Resume Interrupt Enable
180 * 0 - Timout / CRC Error Interrupt Enable
184 * \brief Frame Number (Index into the Frame List)
187 * 10:0 - Index (Incremented each approx 1ms)
191 * \brief Frame List Base Address
193 * 31:12 - Pysical Address >> 12
194 * 11:0 - Reserved (Set to Zero)
196 FLBASEADD = 0x08, // 32-bit
198 * \brief Start-of-frame Modify Register
201 * Sets the size of a frame
202 * Frequency = (11936+n)/12000 kHz
207 SOFMOD = 0x0C, // 8bit
209 * \brief Port Status and Controll Register (Port 1)
215 * 8 - Low Speed Device Attached
217 * 3 - Port Enable/Disable Change - Used for detecting device removal
218 * 2 - Port Enable/Disable
219 * 1 - Connect Status Change
220 * 0 - Current Connect Status
224 * \brief Port Status and Controll Register (Port 2)