Darien Figueroa
This is the latest working repository used in our demo video for the Maxim to display temperature readings on Bluetooth
hspguisourcev301/HspGuiSourceV301/HSPGui/NimitzHID.cs@3:36de8b9e4b1a, 2021-04-10 (annotated)
- Committer:
- darienf
- Date:
- Sat Apr 10 03:05:42 2021 +0000
- Revision:
- 3:36de8b9e4b1a
ayoooo
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| darienf | 3:36de8b9e4b1a | 1 | using Microsoft.VisualBasic; |
| darienf | 3:36de8b9e4b1a | 2 | using System; |
| darienf | 3:36de8b9e4b1a | 3 | using System.Collections; |
| darienf | 3:36de8b9e4b1a | 4 | using System.Data; |
| darienf | 3:36de8b9e4b1a | 5 | using System.Diagnostics; |
| darienf | 3:36de8b9e4b1a | 6 | using System.Drawing; |
| darienf | 3:36de8b9e4b1a | 7 | using System.Windows.Forms; |
| darienf | 3:36de8b9e4b1a | 8 | using Microsoft.Win32.SafeHandles; |
| darienf | 3:36de8b9e4b1a | 9 | using System.Runtime.InteropServices; |
| darienf | 3:36de8b9e4b1a | 10 | |
| darienf | 3:36de8b9e4b1a | 11 | |
| darienf | 3:36de8b9e4b1a | 12 | namespace SimpleHID |
| darienf | 3:36de8b9e4b1a | 13 | { |
| darienf | 3:36de8b9e4b1a | 14 | class NimitzHID |
| darienf | 3:36de8b9e4b1a | 15 | { |
| darienf | 3:36de8b9e4b1a | 16 | internal const byte COMMAND_SUCCEED = 0xEE; |
| darienf | 3:36de8b9e4b1a | 17 | internal const byte COMMAND_FAILED = 0xFA; |
| darienf | 3:36de8b9e4b1a | 18 | |
| darienf | 3:36de8b9e4b1a | 19 | // private IntPtr deviceNotificationHandle; |
| darienf | 3:36de8b9e4b1a | 20 | // private Boolean exclusiveAccess; |
| darienf | 3:36de8b9e4b1a | 21 | private SafeFileHandle hidHandle; |
| darienf | 3:36de8b9e4b1a | 22 | private String hidUsage; |
| darienf | 3:36de8b9e4b1a | 23 | private Boolean myDeviceDetected; |
| darienf | 3:36de8b9e4b1a | 24 | private String myDevicePathName; |
| darienf | 3:36de8b9e4b1a | 25 | private SafeFileHandle readHandle; |
| darienf | 3:36de8b9e4b1a | 26 | private SafeFileHandle writeHandle; |
| darienf | 3:36de8b9e4b1a | 27 | |
| darienf | 3:36de8b9e4b1a | 28 | // private Debugging MyDebugging = new Debugging(); // For viewing results of API calls via Debug.Write. |
| darienf | 3:36de8b9e4b1a | 29 | private Guid hidGuid; |
| darienf | 3:36de8b9e4b1a | 30 | private IntPtr deviceNotificationHandle = System.IntPtr.Zero; |
| darienf | 3:36de8b9e4b1a | 31 | private HID myHID; |
| darienf | 3:36de8b9e4b1a | 32 | |
| darienf | 3:36de8b9e4b1a | 33 | //internal FrmMain FrmMy; |
| darienf | 3:36de8b9e4b1a | 34 | |
| darienf | 3:36de8b9e4b1a | 35 | /// <summary> |
| darienf | 3:36de8b9e4b1a | 36 | /// Define a class of delegates that point to the Hid.ReportIn.Read function. |
| darienf | 3:36de8b9e4b1a | 37 | /// The delegate has the same parameters as Hid.ReportIn.Read. |
| darienf | 3:36de8b9e4b1a | 38 | /// Used for asynchronous reads from the device. |
| darienf | 3:36de8b9e4b1a | 39 | /// </summary> |
| darienf | 3:36de8b9e4b1a | 40 | |
| darienf | 3:36de8b9e4b1a | 41 | private delegate void ReadInputReportDelegate(SafeFileHandle hidHandle, SafeFileHandle readHandle, SafeFileHandle writeHandle, ref Boolean myDeviceDetected, ref Byte[] readBuffer, ref Boolean success); |
| darienf | 3:36de8b9e4b1a | 42 | |
| darienf | 3:36de8b9e4b1a | 43 | // This delegate has the same parameters as AccessForm. |
| darienf | 3:36de8b9e4b1a | 44 | // Used in accessing the application's form from a different thread. |
| darienf | 3:36de8b9e4b1a | 45 | |
| darienf | 3:36de8b9e4b1a | 46 | private delegate void MarshalToForm(String action, String textToAdd); |
| darienf | 3:36de8b9e4b1a | 47 | /// <summary> |
| darienf | 3:36de8b9e4b1a | 48 | /// Uses a series of API calls to locate a HID-class device |
| darienf | 3:36de8b9e4b1a | 49 | /// by its Vendor ID and Product ID. |
| darienf | 3:36de8b9e4b1a | 50 | /// </summary> |
| darienf | 3:36de8b9e4b1a | 51 | /// |
| darienf | 3:36de8b9e4b1a | 52 | /// <returns> |
| darienf | 3:36de8b9e4b1a | 53 | /// True if the device is detected, False if not detected. |
| darienf | 3:36de8b9e4b1a | 54 | /// </returns> |
| darienf | 3:36de8b9e4b1a | 55 | |
| darienf | 3:36de8b9e4b1a | 56 | internal Boolean OpenNimitzH() |
| darienf | 3:36de8b9e4b1a | 57 | { |
| darienf | 3:36de8b9e4b1a | 58 | Boolean deviceFound = false; |
| darienf | 3:36de8b9e4b1a | 59 | String[] devicePathName = new String[128]; |
| darienf | 3:36de8b9e4b1a | 60 | Guid hidGuid = Guid.Empty; |
| darienf | 3:36de8b9e4b1a | 61 | Int32 memberIndex = 0; |
| darienf | 3:36de8b9e4b1a | 62 | Int32 myProductID = 0x1365; |
| darienf | 3:36de8b9e4b1a | 63 | Int32 myVendorID = 0x0B6A; |
| darienf | 3:36de8b9e4b1a | 64 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 65 | |
| darienf | 3:36de8b9e4b1a | 66 | myDeviceDetected = false; |
| darienf | 3:36de8b9e4b1a | 67 | |
| darienf | 3:36de8b9e4b1a | 68 | myHID.findHIDs(); |
| darienf | 3:36de8b9e4b1a | 69 | |
| darienf | 3:36de8b9e4b1a | 70 | // *** |
| darienf | 3:36de8b9e4b1a | 71 | // API function: 'HidD_GetHidGuid |
| darienf | 3:36de8b9e4b1a | 72 | // Purpose: Retrieves the interface class GUID for the HID class. |
| darienf | 3:36de8b9e4b1a | 73 | // Accepts: 'A System.Guid object for storing the GUID. |
| darienf | 3:36de8b9e4b1a | 74 | // *** |
| darienf | 3:36de8b9e4b1a | 75 | |
| darienf | 3:36de8b9e4b1a | 76 | Hid.HidD_GetHidGuid(ref hidGuid); |
| darienf | 3:36de8b9e4b1a | 77 | |
| darienf | 3:36de8b9e4b1a | 78 | // Fill an array with the device path names of all attached HIDs. |
| darienf | 3:36de8b9e4b1a | 79 | |
| darienf | 3:36de8b9e4b1a | 80 | deviceFound = MyDeviceManagement.FindDeviceFromGuid(hidGuid, ref devicePathName); |
| darienf | 3:36de8b9e4b1a | 81 | |
| darienf | 3:36de8b9e4b1a | 82 | // If there is at least one HID, attempt to read the Vendor ID and Product ID |
| darienf | 3:36de8b9e4b1a | 83 | // of each device until there is a match or all devices have been examined. |
| darienf | 3:36de8b9e4b1a | 84 | |
| darienf | 3:36de8b9e4b1a | 85 | if (deviceFound) |
| darienf | 3:36de8b9e4b1a | 86 | { |
| darienf | 3:36de8b9e4b1a | 87 | memberIndex = 0; |
| darienf | 3:36de8b9e4b1a | 88 | |
| darienf | 3:36de8b9e4b1a | 89 | do |
| darienf | 3:36de8b9e4b1a | 90 | { |
| darienf | 3:36de8b9e4b1a | 91 | // *** |
| darienf | 3:36de8b9e4b1a | 92 | // API function: |
| darienf | 3:36de8b9e4b1a | 93 | // CreateFile |
| darienf | 3:36de8b9e4b1a | 94 | // Purpose: |
| darienf | 3:36de8b9e4b1a | 95 | // Retrieves a handle to a device. |
| darienf | 3:36de8b9e4b1a | 96 | // Accepts: |
| darienf | 3:36de8b9e4b1a | 97 | // A device path name returned by SetupDiGetDeviceInterfaceDetail |
| darienf | 3:36de8b9e4b1a | 98 | // The type of access requested (read/write). |
| darienf | 3:36de8b9e4b1a | 99 | // FILE_SHARE attributes to allow other processes to access the device while this handle is open. |
| darienf | 3:36de8b9e4b1a | 100 | // A Security structure or IntPtr.Zero. |
| darienf | 3:36de8b9e4b1a | 101 | // A creation disposition value. Use OPEN_EXISTING for devices. |
| darienf | 3:36de8b9e4b1a | 102 | // Flags and attributes for files. Not used for devices. |
| darienf | 3:36de8b9e4b1a | 103 | // Handle to a template file. Not used. |
| darienf | 3:36de8b9e4b1a | 104 | // Returns: a handle without read or write access. |
| darienf | 3:36de8b9e4b1a | 105 | // This enables obtaining information about all HIDs, even system |
| darienf | 3:36de8b9e4b1a | 106 | // keyboards and mice. |
| darienf | 3:36de8b9e4b1a | 107 | // Separate handles are used for reading and writing. |
| darienf | 3:36de8b9e4b1a | 108 | // *** |
| darienf | 3:36de8b9e4b1a | 109 | hidHandle = FileIO.CreateFile(devicePathName[memberIndex], 0, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0); |
| darienf | 3:36de8b9e4b1a | 110 | |
| darienf | 3:36de8b9e4b1a | 111 | if (!hidHandle.IsInvalid) |
| darienf | 3:36de8b9e4b1a | 112 | { |
| darienf | 3:36de8b9e4b1a | 113 | // The returned handle is valid, |
| darienf | 3:36de8b9e4b1a | 114 | // so find out if this is the device we're looking for. |
| darienf | 3:36de8b9e4b1a | 115 | |
| darienf | 3:36de8b9e4b1a | 116 | // Set the Size property of DeviceAttributes to the number of bytes in the structure. |
| darienf | 3:36de8b9e4b1a | 117 | MyHid.DeviceAttributes.Size = Marshal.SizeOf(MyHid.DeviceAttributes); |
| darienf | 3:36de8b9e4b1a | 118 | |
| darienf | 3:36de8b9e4b1a | 119 | // *** |
| darienf | 3:36de8b9e4b1a | 120 | // API function: |
| darienf | 3:36de8b9e4b1a | 121 | // HidD_GetAttributes |
| darienf | 3:36de8b9e4b1a | 122 | |
| darienf | 3:36de8b9e4b1a | 123 | // Purpose: |
| darienf | 3:36de8b9e4b1a | 124 | // Retrieves a HIDD_ATTRIBUTES structure containing the Vendor ID, |
| darienf | 3:36de8b9e4b1a | 125 | // Product ID, and Product Version Number for a device. |
| darienf | 3:36de8b9e4b1a | 126 | |
| darienf | 3:36de8b9e4b1a | 127 | // Accepts: |
| darienf | 3:36de8b9e4b1a | 128 | // A handle returned by CreateFile. |
| darienf | 3:36de8b9e4b1a | 129 | // A pointer to receive a HIDD_ATTRIBUTES structure. |
| darienf | 3:36de8b9e4b1a | 130 | |
| darienf | 3:36de8b9e4b1a | 131 | // Returns: |
| darienf | 3:36de8b9e4b1a | 132 | // True on success, False on failure. |
| darienf | 3:36de8b9e4b1a | 133 | // *** |
| darienf | 3:36de8b9e4b1a | 134 | |
| darienf | 3:36de8b9e4b1a | 135 | success = Hid.HidD_GetAttributes(hidHandle, ref MyHid.DeviceAttributes); |
| darienf | 3:36de8b9e4b1a | 136 | |
| darienf | 3:36de8b9e4b1a | 137 | if (success) |
| darienf | 3:36de8b9e4b1a | 138 | { |
| darienf | 3:36de8b9e4b1a | 139 | // Find out if the device matches the one we're looking for. |
| darienf | 3:36de8b9e4b1a | 140 | if ((MyHid.DeviceAttributes.VendorID == myVendorID) && (MyHid.DeviceAttributes.ProductID == myProductID)) |
| darienf | 3:36de8b9e4b1a | 141 | { |
| darienf | 3:36de8b9e4b1a | 142 | myDeviceDetected = true; |
| darienf | 3:36de8b9e4b1a | 143 | // Save the DevicePathName for OnDeviceChange(). |
| darienf | 3:36de8b9e4b1a | 144 | myDevicePathName = devicePathName[memberIndex]; |
| darienf | 3:36de8b9e4b1a | 145 | } |
| darienf | 3:36de8b9e4b1a | 146 | else |
| darienf | 3:36de8b9e4b1a | 147 | { |
| darienf | 3:36de8b9e4b1a | 148 | // It's not a match, so close the handle. |
| darienf | 3:36de8b9e4b1a | 149 | myDeviceDetected = false; |
| darienf | 3:36de8b9e4b1a | 150 | hidHandle.Close(); |
| darienf | 3:36de8b9e4b1a | 151 | } |
| darienf | 3:36de8b9e4b1a | 152 | } |
| darienf | 3:36de8b9e4b1a | 153 | else |
| darienf | 3:36de8b9e4b1a | 154 | { |
| darienf | 3:36de8b9e4b1a | 155 | // There was a problem in retrieving the information. |
| darienf | 3:36de8b9e4b1a | 156 | myDeviceDetected = false; |
| darienf | 3:36de8b9e4b1a | 157 | hidHandle.Close(); |
| darienf | 3:36de8b9e4b1a | 158 | } |
| darienf | 3:36de8b9e4b1a | 159 | } |
| darienf | 3:36de8b9e4b1a | 160 | |
| darienf | 3:36de8b9e4b1a | 161 | // Keep looking until we find the device or there are no devices left to examine. |
| darienf | 3:36de8b9e4b1a | 162 | memberIndex = memberIndex + 1; |
| darienf | 3:36de8b9e4b1a | 163 | } |
| darienf | 3:36de8b9e4b1a | 164 | while (!((myDeviceDetected || (memberIndex == devicePathName.Length)))); |
| darienf | 3:36de8b9e4b1a | 165 | } |
| darienf | 3:36de8b9e4b1a | 166 | |
| darienf | 3:36de8b9e4b1a | 167 | if (myDeviceDetected) |
| darienf | 3:36de8b9e4b1a | 168 | { |
| darienf | 3:36de8b9e4b1a | 169 | // The device was detected. |
| darienf | 3:36de8b9e4b1a | 170 | // Learn the capabilities of the device. |
| darienf | 3:36de8b9e4b1a | 171 | MyHid.Capabilities = MyHid.GetDeviceCapabilities(hidHandle); |
| darienf | 3:36de8b9e4b1a | 172 | |
| darienf | 3:36de8b9e4b1a | 173 | // Find out if the device is a system mouse or keyboard. |
| darienf | 3:36de8b9e4b1a | 174 | hidUsage = MyHid.GetHidUsage(MyHid.Capabilities); |
| darienf | 3:36de8b9e4b1a | 175 | |
| darienf | 3:36de8b9e4b1a | 176 | // Get handles to use in requesting Input and Output reports. |
| darienf | 3:36de8b9e4b1a | 177 | readHandle = FileIO.CreateFile(myDevicePathName, FileIO.GENERIC_READ, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, FileIO.FILE_FLAG_OVERLAPPED, 0); |
| darienf | 3:36de8b9e4b1a | 178 | writeHandle = FileIO.CreateFile(myDevicePathName, FileIO.GENERIC_WRITE, FileIO.FILE_SHARE_READ | FileIO.FILE_SHARE_WRITE, IntPtr.Zero, FileIO.OPEN_EXISTING, 0, 0); |
| darienf | 3:36de8b9e4b1a | 179 | |
| darienf | 3:36de8b9e4b1a | 180 | // Flush any waiting reports in the input buffer. (optional) |
| darienf | 3:36de8b9e4b1a | 181 | MyHid.FlushQueue(readHandle); |
| darienf | 3:36de8b9e4b1a | 182 | } |
| darienf | 3:36de8b9e4b1a | 183 | return myDeviceDetected; |
| darienf | 3:36de8b9e4b1a | 184 | } |
| darienf | 3:36de8b9e4b1a | 185 | |
| darienf | 3:36de8b9e4b1a | 186 | internal void CloseNimitzH() |
| darienf | 3:36de8b9e4b1a | 187 | { |
| darienf | 3:36de8b9e4b1a | 188 | if (!(hidHandle == null)) |
| darienf | 3:36de8b9e4b1a | 189 | { |
| darienf | 3:36de8b9e4b1a | 190 | if (!(hidHandle.IsInvalid)) |
| darienf | 3:36de8b9e4b1a | 191 | { |
| darienf | 3:36de8b9e4b1a | 192 | hidHandle.Close(); |
| darienf | 3:36de8b9e4b1a | 193 | } |
| darienf | 3:36de8b9e4b1a | 194 | } |
| darienf | 3:36de8b9e4b1a | 195 | |
| darienf | 3:36de8b9e4b1a | 196 | if (!(readHandle == null)) |
| darienf | 3:36de8b9e4b1a | 197 | { |
| darienf | 3:36de8b9e4b1a | 198 | if (!(readHandle.IsInvalid)) |
| darienf | 3:36de8b9e4b1a | 199 | { |
| darienf | 3:36de8b9e4b1a | 200 | readHandle.Close(); |
| darienf | 3:36de8b9e4b1a | 201 | } |
| darienf | 3:36de8b9e4b1a | 202 | } |
| darienf | 3:36de8b9e4b1a | 203 | |
| darienf | 3:36de8b9e4b1a | 204 | if (!(writeHandle == null)) |
| darienf | 3:36de8b9e4b1a | 205 | { |
| darienf | 3:36de8b9e4b1a | 206 | if (!(writeHandle.IsInvalid)) |
| darienf | 3:36de8b9e4b1a | 207 | { |
| darienf | 3:36de8b9e4b1a | 208 | writeHandle.Close(); |
| darienf | 3:36de8b9e4b1a | 209 | } |
| darienf | 3:36de8b9e4b1a | 210 | } |
| darienf | 3:36de8b9e4b1a | 211 | } |
| darienf | 3:36de8b9e4b1a | 212 | |
| darienf | 3:36de8b9e4b1a | 213 | // This function only checks the status variable and does not actively check |
| darienf | 3:36de8b9e4b1a | 214 | // if the NimitzH is still present. This function |
| darienf | 3:36de8b9e4b1a | 215 | // only checks the variable to avoid any timeout delays. |
| darienf | 3:36de8b9e4b1a | 216 | internal Boolean NimitzHPresent() |
| darienf | 3:36de8b9e4b1a | 217 | { |
| darienf | 3:36de8b9e4b1a | 218 | if (myDeviceDetected) |
| darienf | 3:36de8b9e4b1a | 219 | return true; |
| darienf | 3:36de8b9e4b1a | 220 | else |
| darienf | 3:36de8b9e4b1a | 221 | return false; |
| darienf | 3:36de8b9e4b1a | 222 | } |
| darienf | 3:36de8b9e4b1a | 223 | |
| darienf | 3:36de8b9e4b1a | 224 | ////////////////////////////////////////////////////////////////////// |
| darienf | 3:36de8b9e4b1a | 225 | // Functions that can be called once NimitzH is opened |
| darienf | 3:36de8b9e4b1a | 226 | ////////////////////////////////////////////////////////////////////// |
| darienf | 3:36de8b9e4b1a | 227 | |
| darienf | 3:36de8b9e4b1a | 228 | // This function calls the NimitzH Read Revision command. |
| darienf | 3:36de8b9e4b1a | 229 | // This is done by sending 0xC2, and then receiving 1 byte major rev, then 1byte minor Rev, and then 0xD2 |
| darienf | 3:36de8b9e4b1a | 230 | // This function returns firmware MAJORVERSION in upper word and MINORVERSION in lower word |
| darienf | 3:36de8b9e4b1a | 231 | // This function returns -1 if an error occurs |
| darienf | 3:36de8b9e4b1a | 232 | |
| darienf | 3:36de8b9e4b1a | 233 | internal int GetFirmwareVersion() |
| darienf | 3:36de8b9e4b1a | 234 | { |
| darienf | 3:36de8b9e4b1a | 235 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 236 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 237 | Byte[] dataOut = new Byte[2]; |
| darienf | 3:36de8b9e4b1a | 238 | |
| darienf | 3:36de8b9e4b1a | 239 | dataOut[0] = 0x01;//number of bytes to send |
| darienf | 3:36de8b9e4b1a | 240 | dataOut[1] = 0x02;//firmware command |
| darienf | 3:36de8b9e4b1a | 241 | |
| darienf | 3:36de8b9e4b1a | 242 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 243 | |
| darienf | 3:36de8b9e4b1a | 244 | if (!success) |
| darienf | 3:36de8b9e4b1a | 245 | return -1; |
| darienf | 3:36de8b9e4b1a | 246 | |
| darienf | 3:36de8b9e4b1a | 247 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 248 | return (inputBuffer[3] << 16) + inputBuffer[4]; |
| darienf | 3:36de8b9e4b1a | 249 | else |
| darienf | 3:36de8b9e4b1a | 250 | return -1; |
| darienf | 3:36de8b9e4b1a | 251 | |
| darienf | 3:36de8b9e4b1a | 252 | } |
| darienf | 3:36de8b9e4b1a | 253 | internal Boolean TestSendPacket(byte[] sendData, ref byte[] readData) |
| darienf | 3:36de8b9e4b1a | 254 | { |
| darienf | 3:36de8b9e4b1a | 255 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 256 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 257 | byte numData = (byte)sendData.Length; |
| darienf | 3:36de8b9e4b1a | 258 | Byte[] dataOut = new Byte[3 + numData]; |
| darienf | 3:36de8b9e4b1a | 259 | |
| darienf | 3:36de8b9e4b1a | 260 | if ((numData > 62) || (numData < 0)) |
| darienf | 3:36de8b9e4b1a | 261 | return false; // Max packet size is 62 bytes |
| darienf | 3:36de8b9e4b1a | 262 | |
| darienf | 3:36de8b9e4b1a | 263 | dataOut[0] = (byte)(0x02 + numData);//number of bytes to send (include command and data bytes) |
| darienf | 3:36de8b9e4b1a | 264 | dataOut[1] = 0x01;//command byte |
| darienf | 3:36de8b9e4b1a | 265 | dataOut[2] = (byte)(numData);//number of data bytes |
| darienf | 3:36de8b9e4b1a | 266 | |
| darienf | 3:36de8b9e4b1a | 267 | for (int i = 0; i < numData; i++) |
| darienf | 3:36de8b9e4b1a | 268 | dataOut[i + 3] = sendData[i]; |
| darienf | 3:36de8b9e4b1a | 269 | |
| darienf | 3:36de8b9e4b1a | 270 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 271 | |
| darienf | 3:36de8b9e4b1a | 272 | if (!success) |
| darienf | 3:36de8b9e4b1a | 273 | return false; |
| darienf | 3:36de8b9e4b1a | 274 | |
| darienf | 3:36de8b9e4b1a | 275 | for (int i = 0; i < numData; i++) |
| darienf | 3:36de8b9e4b1a | 276 | readData[i] = inputBuffer[i + 3]; |
| darienf | 3:36de8b9e4b1a | 277 | |
| darienf | 3:36de8b9e4b1a | 278 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 279 | return true; |
| darienf | 3:36de8b9e4b1a | 280 | else |
| darienf | 3:36de8b9e4b1a | 281 | return false; |
| darienf | 3:36de8b9e4b1a | 282 | } |
| darienf | 3:36de8b9e4b1a | 283 | /****************I2CPacketWrite****************/ |
| darienf | 3:36de8b9e4b1a | 284 | /* Description: Generates the correct sequence of events on the I2C bus for a packet write (up to 60 data bytes) |
| darienf | 3:36de8b9e4b1a | 285 | /* Information: New Implementation for packet writes ( SHOULD BE USED in most ALLL Writes/Read of and I2C Device )!! |
| darienf | 3:36de8b9e4b1a | 286 | /* Paramters: slaveAddress = slave address of DUT (R/W# is set in firmware), numBytes = Number of data bytes to write (1 to 60), |
| darienf | 3:36de8b9e4b1a | 287 | /* memoryaddress = Desired memory location, databuffer = pointer to the data to write on the buss*/ |
| darienf | 3:36de8b9e4b1a | 288 | internal Boolean I2CWritePacket(Byte slaveAddress, Byte memoryaddress, Byte numBytes, Byte[] databuffer) |
| darienf | 3:36de8b9e4b1a | 289 | { |
| darienf | 3:36de8b9e4b1a | 290 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 291 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 292 | Byte[] dataOut = new Byte[64]; |
| darienf | 3:36de8b9e4b1a | 293 | |
| darienf | 3:36de8b9e4b1a | 294 | if ((numBytes > 59) || (numBytes < 0)) |
| darienf | 3:36de8b9e4b1a | 295 | return false; // Max packet size is 60 bytes |
| darienf | 3:36de8b9e4b1a | 296 | |
| darienf | 3:36de8b9e4b1a | 297 | dataOut[0] = (byte)(numBytes + 4); |
| darienf | 3:36de8b9e4b1a | 298 | dataOut[1] = 0x20; |
| darienf | 3:36de8b9e4b1a | 299 | dataOut[2] = slaveAddress; |
| darienf | 3:36de8b9e4b1a | 300 | dataOut[3] = memoryaddress; |
| darienf | 3:36de8b9e4b1a | 301 | dataOut[4] = numBytes; |
| darienf | 3:36de8b9e4b1a | 302 | |
| darienf | 3:36de8b9e4b1a | 303 | for (int i = 0; i < numBytes; i++) |
| darienf | 3:36de8b9e4b1a | 304 | dataOut[i + 5] = databuffer[i]; |
| darienf | 3:36de8b9e4b1a | 305 | |
| darienf | 3:36de8b9e4b1a | 306 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 307 | |
| darienf | 3:36de8b9e4b1a | 308 | if (!success) |
| darienf | 3:36de8b9e4b1a | 309 | return false; |
| darienf | 3:36de8b9e4b1a | 310 | |
| darienf | 3:36de8b9e4b1a | 311 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 312 | return true; |
| darienf | 3:36de8b9e4b1a | 313 | else |
| darienf | 3:36de8b9e4b1a | 314 | return false; |
| darienf | 3:36de8b9e4b1a | 315 | } |
| darienf | 3:36de8b9e4b1a | 316 | |
| darienf | 3:36de8b9e4b1a | 317 | /****************I2CPacketRead****************/ |
| darienf | 3:36de8b9e4b1a | 318 | /* Description: Generates the correct sequence of events on the I2C bus for a packet read (up to 60 data bytes) |
| darienf | 3:36de8b9e4b1a | 319 | /* Information: New Implementation for packet reads ( SHOULD BE USED in most ALLL Writes/Read of and I2C Device )!! |
| darienf | 3:36de8b9e4b1a | 320 | /* Paramters: slaveAddress = slave address of DUT (R/W# is set in firmware), numBytes = Number of data bytes to write (1 to 60), |
| darienf | 3:36de8b9e4b1a | 321 | /* memoryaddress = Desired memory location, databuffer = pointer to the data read should be saved*/ |
| darienf | 3:36de8b9e4b1a | 322 | internal Boolean I2CReadPacket(Byte slaveAddress, Byte memoryaddress, Byte numBytes, ref Byte[] databuffer) |
| darienf | 3:36de8b9e4b1a | 323 | { |
| darienf | 3:36de8b9e4b1a | 324 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 325 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 326 | Byte[] dataOut = new Byte[5]; |
| darienf | 3:36de8b9e4b1a | 327 | |
| darienf | 3:36de8b9e4b1a | 328 | if ((numBytes > 62) || (numBytes < 1)) |
| darienf | 3:36de8b9e4b1a | 329 | return false; // Max packet size is 62 bytes |
| darienf | 3:36de8b9e4b1a | 330 | |
| darienf | 3:36de8b9e4b1a | 331 | dataOut[0] = 0x04; |
| darienf | 3:36de8b9e4b1a | 332 | dataOut[1] = 0x21; |
| darienf | 3:36de8b9e4b1a | 333 | dataOut[2] = (byte)(slaveAddress | 0x01); |
| darienf | 3:36de8b9e4b1a | 334 | dataOut[3] = memoryaddress; |
| darienf | 3:36de8b9e4b1a | 335 | dataOut[4] = numBytes; |
| darienf | 3:36de8b9e4b1a | 336 | |
| darienf | 3:36de8b9e4b1a | 337 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 338 | |
| darienf | 3:36de8b9e4b1a | 339 | if (!success) |
| darienf | 3:36de8b9e4b1a | 340 | return false; |
| darienf | 3:36de8b9e4b1a | 341 | |
| darienf | 3:36de8b9e4b1a | 342 | for (int i = 0; i < numBytes; i++) |
| darienf | 3:36de8b9e4b1a | 343 | databuffer[i] = inputBuffer[i + 3]; |
| darienf | 3:36de8b9e4b1a | 344 | |
| darienf | 3:36de8b9e4b1a | 345 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 346 | return true; |
| darienf | 3:36de8b9e4b1a | 347 | else |
| darienf | 3:36de8b9e4b1a | 348 | return false; |
| darienf | 3:36de8b9e4b1a | 349 | } |
| darienf | 3:36de8b9e4b1a | 350 | |
| darienf | 3:36de8b9e4b1a | 351 | internal Boolean SPIReadPacket(Byte address, Byte numBytes, ref Byte[] data) |
| darienf | 3:36de8b9e4b1a | 352 | { |
| darienf | 3:36de8b9e4b1a | 353 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 354 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 355 | Byte[] dataOut = new Byte[4]; |
| darienf | 3:36de8b9e4b1a | 356 | |
| darienf | 3:36de8b9e4b1a | 357 | if ((numBytes > 62) || (numBytes < 1)) |
| darienf | 3:36de8b9e4b1a | 358 | return false; // Max packet size is 62 bytes |
| darienf | 3:36de8b9e4b1a | 359 | |
| darienf | 3:36de8b9e4b1a | 360 | dataOut[0] = 3; |
| darienf | 3:36de8b9e4b1a | 361 | dataOut[1] = 0x41; |
| darienf | 3:36de8b9e4b1a | 362 | dataOut[2] = address; |
| darienf | 3:36de8b9e4b1a | 363 | dataOut[3] = numBytes; |
| darienf | 3:36de8b9e4b1a | 364 | |
| darienf | 3:36de8b9e4b1a | 365 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 366 | |
| darienf | 3:36de8b9e4b1a | 367 | if (!success) |
| darienf | 3:36de8b9e4b1a | 368 | return false; |
| darienf | 3:36de8b9e4b1a | 369 | |
| darienf | 3:36de8b9e4b1a | 370 | for (int i = 0; i < numBytes; i++) |
| darienf | 3:36de8b9e4b1a | 371 | data[i] = inputBuffer[i + 3]; |
| darienf | 3:36de8b9e4b1a | 372 | |
| darienf | 3:36de8b9e4b1a | 373 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 374 | return true; |
| darienf | 3:36de8b9e4b1a | 375 | else |
| darienf | 3:36de8b9e4b1a | 376 | return false; |
| darienf | 3:36de8b9e4b1a | 377 | } |
| darienf | 3:36de8b9e4b1a | 378 | |
| darienf | 3:36de8b9e4b1a | 379 | internal Boolean SPIStartSampling(Byte address, Byte numBytes, uint numSamples, ref Byte[] data) |
| darienf | 3:36de8b9e4b1a | 380 | { |
| darienf | 3:36de8b9e4b1a | 381 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 382 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 383 | Byte[] dataOut = new Byte[6]; |
| darienf | 3:36de8b9e4b1a | 384 | |
| darienf | 3:36de8b9e4b1a | 385 | if ((numBytes > 62) || (numBytes < 1)) |
| darienf | 3:36de8b9e4b1a | 386 | return false; // Max packet size is 62 bytes |
| darienf | 3:36de8b9e4b1a | 387 | |
| darienf | 3:36de8b9e4b1a | 388 | dataOut[0] = 5; |
| darienf | 3:36de8b9e4b1a | 389 | dataOut[1] = 0x45; |
| darienf | 3:36de8b9e4b1a | 390 | dataOut[2] = address; |
| darienf | 3:36de8b9e4b1a | 391 | dataOut[3] = numBytes; |
| darienf | 3:36de8b9e4b1a | 392 | dataOut[4] = (byte)(numSamples >> 8); |
| darienf | 3:36de8b9e4b1a | 393 | dataOut[5] = (byte)numSamples; |
| darienf | 3:36de8b9e4b1a | 394 | |
| darienf | 3:36de8b9e4b1a | 395 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 396 | |
| darienf | 3:36de8b9e4b1a | 397 | if (!success) |
| darienf | 3:36de8b9e4b1a | 398 | return false; |
| darienf | 3:36de8b9e4b1a | 399 | |
| darienf | 3:36de8b9e4b1a | 400 | for (int i = 0; i < numBytes; i++) |
| darienf | 3:36de8b9e4b1a | 401 | data[i] = inputBuffer[i + 3]; |
| darienf | 3:36de8b9e4b1a | 402 | |
| darienf | 3:36de8b9e4b1a | 403 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 404 | return true; |
| darienf | 3:36de8b9e4b1a | 405 | else |
| darienf | 3:36de8b9e4b1a | 406 | return false; |
| darienf | 3:36de8b9e4b1a | 407 | } |
| darienf | 3:36de8b9e4b1a | 408 | |
| darienf | 3:36de8b9e4b1a | 409 | internal bool SPIWritePacket(Byte address, Byte numBytes, Byte[] data) |
| darienf | 3:36de8b9e4b1a | 410 | { |
| darienf | 3:36de8b9e4b1a | 411 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 412 | Byte[] inputBuffer = null; |
| darienf | 3:36de8b9e4b1a | 413 | Byte[] dataOut = new Byte[64]; |
| darienf | 3:36de8b9e4b1a | 414 | |
| darienf | 3:36de8b9e4b1a | 415 | if ((numBytes > 60) || (numBytes < 1)) |
| darienf | 3:36de8b9e4b1a | 416 | return false; // Max packet size is 60 bytes |
| darienf | 3:36de8b9e4b1a | 417 | |
| darienf | 3:36de8b9e4b1a | 418 | dataOut[0] = (byte)(numBytes + 3); |
| darienf | 3:36de8b9e4b1a | 419 | dataOut[1] = 0x40; |
| darienf | 3:36de8b9e4b1a | 420 | dataOut[2] = address; |
| darienf | 3:36de8b9e4b1a | 421 | dataOut[3] = numBytes; |
| darienf | 3:36de8b9e4b1a | 422 | |
| darienf | 3:36de8b9e4b1a | 423 | for (int i = 0; i < numBytes; i++) |
| darienf | 3:36de8b9e4b1a | 424 | dataOut[4 + i] = data[i]; |
| darienf | 3:36de8b9e4b1a | 425 | |
| darienf | 3:36de8b9e4b1a | 426 | success = InputOutputReports(dataOut, ref inputBuffer); |
| darienf | 3:36de8b9e4b1a | 427 | |
| darienf | 3:36de8b9e4b1a | 428 | if (!success) |
| darienf | 3:36de8b9e4b1a | 429 | return false; |
| darienf | 3:36de8b9e4b1a | 430 | |
| darienf | 3:36de8b9e4b1a | 431 | if (inputBuffer[2] == COMMAND_SUCCEED) |
| darienf | 3:36de8b9e4b1a | 432 | return true; |
| darienf | 3:36de8b9e4b1a | 433 | else |
| darienf | 3:36de8b9e4b1a | 434 | return false; |
| darienf | 3:36de8b9e4b1a | 435 | } |
| darienf | 3:36de8b9e4b1a | 436 | /// <summary> |
| darienf | 3:36de8b9e4b1a | 437 | /// Sends an Output report, then retrieves an Input report. |
| darienf | 3:36de8b9e4b1a | 438 | /// Assumes report ID = 0 for both reports. |
| darienf | 3:36de8b9e4b1a | 439 | /// </summary> |
| darienf | 3:36de8b9e4b1a | 440 | |
| darienf | 3:36de8b9e4b1a | 441 | private Boolean InputOutputReports(Byte[] data, ref Byte[] inputReportBuffer) |
| darienf | 3:36de8b9e4b1a | 442 | { |
| darienf | 3:36de8b9e4b1a | 443 | // Byte[] inputReportBuffer = null; |
| darienf | 3:36de8b9e4b1a | 444 | Byte[] outputReportBuffer = null; |
| darienf | 3:36de8b9e4b1a | 445 | Boolean success = false; |
| darienf | 3:36de8b9e4b1a | 446 | |
| darienf | 3:36de8b9e4b1a | 447 | success = false; |
| darienf | 3:36de8b9e4b1a | 448 | |
| darienf | 3:36de8b9e4b1a | 449 | // Don't attempt to exchange reports if valid handles aren't available |
| darienf | 3:36de8b9e4b1a | 450 | // (as for a mouse or keyboard under Windows 2000/XP.) |
| darienf | 3:36de8b9e4b1a | 451 | |
| darienf | 3:36de8b9e4b1a | 452 | if (!readHandle.IsInvalid && !writeHandle.IsInvalid) |
| darienf | 3:36de8b9e4b1a | 453 | { |
| darienf | 3:36de8b9e4b1a | 454 | // Don't attempt to send an Output report if the HID has no Output report. |
| darienf | 3:36de8b9e4b1a | 455 | if (MyHid.Capabilities.OutputReportByteLength > 0) |
| darienf | 3:36de8b9e4b1a | 456 | { |
| darienf | 3:36de8b9e4b1a | 457 | // Set the size of the Output report buffer. |
| darienf | 3:36de8b9e4b1a | 458 | |
| darienf | 3:36de8b9e4b1a | 459 | outputReportBuffer = new Byte[MyHid.Capabilities.OutputReportByteLength]; |
| darienf | 3:36de8b9e4b1a | 460 | |
| darienf | 3:36de8b9e4b1a | 461 | outputReportBuffer[0] = 0; // Ensure Report ID = 0 |
| darienf | 3:36de8b9e4b1a | 462 | |
| darienf | 3:36de8b9e4b1a | 463 | |
| darienf | 3:36de8b9e4b1a | 464 | for (int i = 0; i < data.Length; i++) |
| darienf | 3:36de8b9e4b1a | 465 | outputReportBuffer[i + 1] = data[i]; |
| darienf | 3:36de8b9e4b1a | 466 | |
| darienf | 3:36de8b9e4b1a | 467 | // Use WriteFile to send the report. |
| darienf | 3:36de8b9e4b1a | 468 | // If the HID has an interrupt OUT endpoint, WriteFile uses an |
| darienf | 3:36de8b9e4b1a | 469 | // interrupt transfer to send the report. |
| darienf | 3:36de8b9e4b1a | 470 | // If not, WriteFile uses a control transfer. |
| darienf | 3:36de8b9e4b1a | 471 | |
| darienf | 3:36de8b9e4b1a | 472 | Hid.OutputReportViaInterruptTransfer myOutputReport = new Hid.OutputReportViaInterruptTransfer(); |
| darienf | 3:36de8b9e4b1a | 473 | success = myOutputReport.Write(outputReportBuffer, writeHandle); |
| darienf | 3:36de8b9e4b1a | 474 | } |
| darienf | 3:36de8b9e4b1a | 475 | |
| darienf | 3:36de8b9e4b1a | 476 | if (!success) |
| darienf | 3:36de8b9e4b1a | 477 | return false; |
| darienf | 3:36de8b9e4b1a | 478 | |
| darienf | 3:36de8b9e4b1a | 479 | // Read an Input report |
| darienf | 3:36de8b9e4b1a | 480 | success = false; |
| darienf | 3:36de8b9e4b1a | 481 | |
| darienf | 3:36de8b9e4b1a | 482 | // Don't attempt to send an Input report if the HID has no Input report. |
| darienf | 3:36de8b9e4b1a | 483 | // (The HID spec requires all HIDs to have an interrupt IN endpoint, |
| darienf | 3:36de8b9e4b1a | 484 | // which suggests that all HIDs must support Input reports.) |
| darienf | 3:36de8b9e4b1a | 485 | |
| darienf | 3:36de8b9e4b1a | 486 | if (MyHid.Capabilities.InputReportByteLength > 0) |
| darienf | 3:36de8b9e4b1a | 487 | { |
| darienf | 3:36de8b9e4b1a | 488 | // Set the size of the Input report buffer. |
| darienf | 3:36de8b9e4b1a | 489 | inputReportBuffer = new Byte[MyHid.Capabilities.InputReportByteLength]; |
| darienf | 3:36de8b9e4b1a | 490 | |
| darienf | 3:36de8b9e4b1a | 491 | Hid.InputReportViaInterruptTransfer myInputReport = new Hid.InputReportViaInterruptTransfer(); |
| darienf | 3:36de8b9e4b1a | 492 | myInputReport.Read(hidHandle, readHandle, writeHandle, ref myDeviceDetected, ref inputReportBuffer, ref success); |
| darienf | 3:36de8b9e4b1a | 493 | |
| darienf | 3:36de8b9e4b1a | 494 | } |
| darienf | 3:36de8b9e4b1a | 495 | |
| darienf | 3:36de8b9e4b1a | 496 | } |
| darienf | 3:36de8b9e4b1a | 497 | return success; |
| darienf | 3:36de8b9e4b1a | 498 | } |
| darienf | 3:36de8b9e4b1a | 499 | } |
| darienf | 3:36de8b9e4b1a | 500 | } |