Mercurial > louis > kiibohd-controller

annotate Output/pjrcUSB/arm/usb_rawio.c @ 449:45feb80a2ad1

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Major USB update, fixes most (if not all) known issues USB - General - Refactored descriptors - Enabled/Disable USB endpoints - Added debug flags for special features - Code cleanup - Interface count calculation based off of enabled endpoints - Delayed wTotalLength calculation to simplify descriptor offsets - Re-ordered endpoints and interfaces - Added more debug output - Added usbInitTime to show how long keyboard initialization took (Useful when debugging bad init sequences) - Added function for usb_resume() which takes care of the resume sequence * Resume is now only called if packets are starting to timeout USB - Special Options - Added enableDeviceRestartOnUSBTimeout * A last resort hammer for bad USB Chipsets/OSs, don't use if you can help it * Disabled - Added enableUSBResume * Enables host resume wake-up signalling, required to wake a computer from sleep * Enabled - Added enableUSBLowPowerNegotiation * Enables power negotiation hack * Required to use firmware with an IPad and other hard-limit low-power USB hosts * Hasn't been tested with the recent changes * Disabled - Added enableUSBSuspend * Enables power down events on host USB bus suspend * Enabled USB - Keyboard - Attempted to cleanup HID SET_REPORT * Works much better * Still has an issue under Linux which generates *a lot* of NAKs (initializes quickly regardless) + Not present on other keyboards + SETUP -> OUT -> IN : This sequence is the problem + Specifically during the OUT phase - Enabled USB - CDC Virtual Serial Port - Code cleanup - Added convenience struct USBCDCLineCoding for easier debugging - Attempted to cleanup CDC_SET_LING_CODING * Works much better * Still has an issue under Linux which generates *a lot* of NAKs (initializes quickly regardless) + SETUP -> OUT -> IN : This sequence is the problem + Specifically during the OUT phase + Likely the same issues as HID SET_REPORT - Enabled USB - Mouse - Enabled USB - Joystick - Disabled USB - RawIO - Initial code, API not used yet - Disabled DFU - Updated load script, now faster
author Jacob Alexander <haata@kiibohd.com>
date Tue, 31 May 2016 00:19:45 -0700
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449
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
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1 /* Copyright (C) 2016 by Jacob Alexander
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to deal
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5 * in the Software without restriction, including without limitation the rights
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6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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7 * copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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19 * THE SOFTWARE.
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20 */
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21
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22 #include <kll_defs.h>
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23 #if enableRawIO_define == 1
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24
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25 // ----- Includes -----
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26
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27 // Compiler Includes
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28 #include <string.h> // For memcpy
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29
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30 // Project Includes
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31 #include <Lib/OutputLib.h>
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32 #include <print.h>
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33
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34 // Local Includes
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35 #include "usb_dev.h"
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36 #include "usb_rawio.h"
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37
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38
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39
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40 // ----- Defines -----
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41
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42 // Maximum number of transmit packets to queue so we don't starve other endpoints for memory
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43 #define TX_PACKET_LIMIT 5
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44
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45
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46
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47 // ----- Functions -----
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48
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49 // Check for packets available from host
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50 uint32_t usb_rawio_available()
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51 {
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52 // Error if USB isn't configured
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53 if ( !usb_configuration )
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54 return 0;
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55
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56 // Query number of bytes available from the endpoint
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57 return usb_rx_byte_count( RAWIO_RX_ENDPOINT );
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58 }
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59
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60 // Retrieve packets from host
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61 // Always returns RAWIO_RX_SIZE
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62 int32_t usb_rawio_rx( void *buf, uint32_t timeout )
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63 {
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64 usb_packet_t *rx_packet;
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65 uint32_t begin = millis();
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66
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67 // Read
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68 while ( 1 )
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69 {
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70 // Error if USB isn't configured
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71 if ( !usb_configuration )
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72 return -1;
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73
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74 // Retrieve packet
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75 rx_packet = usb_rx( RAWIO_RX_ENDPOINT );
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76 if ( rx_packet )
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77 break;
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78
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79 // Check for timeout
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80 if ( millis() - begin > timeout || !timeout )
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81 {
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82 warn_msg("RAWIO Rx - Timeout, dropping packet.");
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83 return 0;
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84 }
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85
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86 yield();
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87 }
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88
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89 // Transfer packet from USB buffer to given buffer
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90 memcpy( buf, rx_packet->buf, RAWIO_RX_SIZE );
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91 usb_free( rx_packet );
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92
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93 // Data sent in full packet chunks
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94 return RAWIO_RX_SIZE;
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95 }
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96
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97 // Send packet to host
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98 // XXX Only transfers RAWIO_TX_SIZE on each call (likely 64 bytes)
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99 // Always returns RAWIO_TX_SIZE
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100 int32_t usb_rawio_tx( const void *buf, uint32_t timeout )
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101 {
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102 usb_packet_t *tx_packet;
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103 uint32_t begin = millis();
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104
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105 while ( 1 )
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106 {
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107 // Error if USB isn't configured
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108 if ( !usb_configuration )
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109 return -1;
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110
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111 // Make sure we haven't exceeded the outgoing packet limit
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112 if ( usb_tx_packet_count( RAWIO_TX_ENDPOINT ) < TX_PACKET_LIMIT )
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113 {
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114 // Allocate a packet buffer
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115 tx_packet = usb_malloc();
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116 if ( tx_packet )
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117 break;
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118 }
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119
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120 // Check for timeout
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121 if ( millis() - begin > timeout )
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122 {
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123 warn_msg("RAWIO Tx - Timeout, dropping packet.");
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124 return 0;
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125 }
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126
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127 yield();
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128 }
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129
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130 // Copy input buffer to usb packet buffer and assign length
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131 memcpy( tx_packet->buf, buf, RAWIO_TX_SIZE );
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132 tx_packet->len = RAWIO_TX_SIZE;
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133
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134 // Send USB packet
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
135 usb_tx( RAWIO_TX_ENDPOINT, tx_packet );
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
136
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
137 return RAWIO_TX_SIZE;
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
138 }
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
139
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
140 #endif
45feb80a2ad1 Major USB update, fixes most (if not all) known issues
Jacob Alexander <haata@kiibohd.com>
parents:
diff changeset
141