1 | #if defined(LIBUSB)
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2 | /*
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3 | ifd_smartreader.c
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4 | This module provides IFD handling functions for for Argolis smartreader+.
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5 | */
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6 |
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7 | #include <stdio.h>
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8 | #include <time.h>
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9 | #include <string.h>
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10 | #include"ifd_smartreader.h"
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11 |
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12 | #define OK 0
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13 | #define ERROR 1
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14 | #define LOBYTE(w) ((BYTE)((w) & 0xff))
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15 | #define HIBYTE(w) ((BYTE)((w) >> 8))
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16 |
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17 | //The number of concurrent bulk reads to queue onto the smartreader
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18 | #define NUM_TXFERS 2
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19 |
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20 | typedef struct s_reader S_READER;
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21 |
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22 | static bool smartreader_check_endpoint(libusb_device *usb_dev);
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23 | static struct libusb_device *find_smartreader(const char*busname,const char *devname);
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24 | static void smartreader_init(S_READER *reader);
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25 | static unsigned int smartreader_determine_max_packet_size(S_READER *reader);
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26 | static int smartreader_usb_close_internal (S_READER *reader);
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27 | static int smartreader_usb_reset(S_READER *reader);
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28 | static int smartreader_usb_open_dev(S_READER *reader);
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29 | static int smartreader_usb_purge_rx_buffer(S_READER *reader);
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30 | static int smartreader_usb_purge_tx_buffer(S_READER *reader);
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31 | static int smartreader_usb_purge_buffers(S_READER *reader);
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32 | static int smartreader_convert_baudrate(int baudrate, S_READER *reader, unsigned short *value, unsigned short *index);
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33 | static int smartreader_set_baudrate(S_READER *reader, int baudrate);
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34 | static int smartreader_setdtr_rts(S_READER *reader, int dtr, int rts);
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35 | static int smartreader_setflowctrl(S_READER *reader, int flowctrl);
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36 | static int smartreader_set_line_property2(S_READER *reader, enum smartreader_bits_type bits,
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37 | enum smartreader_stopbits_type sbit, enum smartreader_parity_type parity,
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38 | enum smartreader_break_type break_type);
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39 | static int smartreader_set_line_property(S_READER *reader, enum smartreader_bits_type bits,
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40 | enum smartreader_stopbits_type sbit, enum smartreader_parity_type parity);
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41 | static void smart_flush(S_READER *reader);
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42 | static int smart_read(S_READER *reader, unsigned char* buff, unsigned int size, int timeout_sec);
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43 | static int smartreader_write_data(S_READER *reader, unsigned char *buf, unsigned int size);
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44 | static int smart_write(S_READER *reader, unsigned char* buff, unsigned int size, int udelay);
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45 | static int smartreader_set_latency_timer(S_READER *reader, unsigned short latency);
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46 | static void EnableSmartReader(S_READER *reader, int clock, unsigned short Fi, unsigned char Di, unsigned char Ni, unsigned char T,unsigned char inv, int parity);
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47 | static void ResetSmartReader(S_READER *reader);
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48 | static void *ReaderThread(void *p);
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49 |
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50 | int SR_Init (struct s_reader *reader)
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51 | {
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52 |
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53 | int ret;
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54 | char device[128];
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55 | char *busname;
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56 | char *devname;
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57 | char *search = ":";
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58 | // split the device name from the reader conf into devname and busname
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59 | memcpy(device,reader->device,128);
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60 | busname=strtok(device,search);
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61 | devname=strtok(NULL,search);
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62 | if(!busname || !devname) {
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63 | cs_log("Wrong device format (%s), it should be Device=bus:dev",reader->device);
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64 | return ERROR;
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65 | }
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66 |
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67 | cs_debug_mask (D_IFD,"IO:SR: Looking for device %s on bus %s",devname,busname);
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68 |
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69 | ret = libusb_init(NULL);
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70 | if (ret < 0) {
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71 | cs_log("Libusb init error : %d",ret);
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72 | return ret;
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73 | }
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74 |
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75 | smartreader_init(reader);
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76 |
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77 | reader->sr_config.usb_dev=find_smartreader(busname,devname);
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78 | if(!reader->sr_config.usb_dev)
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79 | return ERROR;
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80 |
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81 | cs_debug_mask (D_IFD,"IO:SR: Opening smartreader device %s on bus %s",devname,busname);
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82 | //The smartreader has different endpoint addresses
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83 | //compared to a real FT232 device, so change them here,
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84 | //also a good way to compare a real FT232 with a smartreader
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85 | //if you enumarate usb devices
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86 | reader->sr_config.in_ep = 0x1;
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87 | reader->sr_config.out_ep = 0x82;
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88 |
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89 | //open the first smartreader found in the system, this
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90 | //would need to be changed to an enumerate function
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91 | //of some sort using the ftdi library. /dev/ttyUSB0 wont exist
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92 | //as we are accessing the device directly so you will have
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93 | //to have some other way of addressing the smartreader within
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94 | //OSCam config files etc...
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95 | if ((ret=smartreader_usb_open_dev(reader))) {
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96 | cs_log("unable to open smartreader device %s in bus %s (ret=%d)\n", devname,busname,ret);
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97 | return ERROR;
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98 | }
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99 |
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100 | cs_debug_mask (D_IFD,"IO:SR: Setting smartreader latency timer to 1ms");
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101 |
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102 | //Set the FTDI latency timer to 1ms
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103 | ret = smartreader_set_latency_timer(reader, 1);
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104 |
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105 | //Set databits to 8o2
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106 | ret = smartreader_set_line_property(reader, BITS_8, STOP_BIT_2, ODD);
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107 |
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108 | //Set the DTR HIGH and RTS LOW
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109 | ret=smartreader_setdtr_rts(reader, 0, 0);
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110 |
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111 | //Disable flow control
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112 | ret=smartreader_setflowctrl(reader, 0);
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113 |
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114 | // start the reading thread
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115 | reader->g_read_buffer_size = 0;
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116 | reader->modem_status = 0 ;
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117 | pthread_mutex_init(&reader->g_read_mutex,NULL);
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118 | pthread_mutex_init(&reader->g_usb_mutex,NULL);
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119 | ret = pthread_create(&reader->rt, NULL, ReaderThread, (void *)(reader));
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120 | if (ret) {
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121 | cs_log("ERROR; return code from pthread_create() is %d", ret);
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122 | return ERROR;
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123 | }
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124 |
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125 | return OK;
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126 | }
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127 |
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128 |
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129 | int SR_GetStatus (struct s_reader *reader, int * in)
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130 | {
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131 | int state;
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132 |
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133 | pthread_mutex_lock(&reader->g_read_mutex);
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134 | state =(reader->modem_status & 0x80) == 0x80 ? 0 : 2;
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135 | pthread_mutex_unlock(&reader->g_read_mutex);
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136 |
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137 |
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138 | //state = 0 no card, 1 = not ready, 2 = ready
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139 | if (state)
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140 | *in = 1; //CARD, even if not ready report card is in, or it will never get activated
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141 | else
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142 | *in = 0; //NOCARD
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143 |
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144 | return OK;
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145 | }
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146 |
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147 | int SR_Reset (struct s_reader *reader, ATR *atr)
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148 | {
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149 | unsigned char data[40];
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150 | int ret;
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151 | int atr_ok;
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152 | unsigned int i;
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153 | int parity[4] = {EVEN, ODD, NONE, EVEN}; // the last EVEN is to try with different F, D values for irdeto card.
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154 |
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155 | char *parity_str[5]={"NONE", "ODD", "EVEN", "MARK", "SPACE"};
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156 |
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157 |
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158 | if(reader->mhz==reader->cardmhz && reader->cardmhz*10000 > 3690000)
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159 | reader->sr_config.fs=reader->cardmhz*10000;
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160 | else
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161 | reader->sr_config.fs=3690000;
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162 |
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163 | ResetSmartReader(reader);
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164 | for(i=0 ; i < 4 ;i++) {
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165 | reader->sr_config.irdeto=FALSE;
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166 | atr_ok=ERROR;
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167 | memset(data,0,sizeof(data));
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168 | reader->sr_config.parity=parity[i];
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169 |
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170 | cs_debug_mask (D_IFD,"IO:SR: Trying with parity %s",parity_str[reader->sr_config.parity]);
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171 |
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172 |
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173 | // special irdeto case
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174 | if(i==3) {
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175 | cs_debug_mask (D_IFD,"IO:SR: Trying irdeto");
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176 |
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177 | reader->sr_config.F=618; /// magic smartreader value
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178 | reader->sr_config.D=1;
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179 | // reader->sr_config.T=2; // will be set to T=1 in EnableSmartReader
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180 | reader->sr_config.T=1;
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181 | reader->sr_config.irdeto=TRUE;
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182 | }
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183 |
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184 | smart_flush(reader);
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185 | EnableSmartReader(reader, reader->sr_config.fs/10000, reader->sr_config.F, (BYTE)reader->sr_config.D, reader->sr_config.N, reader->sr_config.T, reader->sr_config.inv,reader->sr_config.parity);
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186 | sched_yield();
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187 | cs_sleepms(500); //smartreader in mouse mode needs this, so it might also be needed in native mode.
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188 |
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189 | //Reset smartcard
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190 |
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191 | //Set the DTR HIGH and RTS HIGH
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192 | smartreader_setdtr_rts(reader, 1, 1);
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193 | // A card with an active low reset is reset by maintaining RST in state L for at least 40 000 clock cycles
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194 | // so if we have a base freq of 3.5712MHz : 40000/3690000 = .0112007168458781 seconds, aka 11ms
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195 | // so if we have a base freq of 6.00MHz : 40000/6000000 = .0066666666666666 seconds, aka 6ms
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196 | // here were doing 200ms .. is it too much ?
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197 | cs_sleepms(200);
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198 |
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199 | //Set the DTR HIGH and RTS LOW
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200 | smartreader_setdtr_rts(reader, 1, 0);
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201 |
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202 | cs_sleepms(200);
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203 | sched_yield();
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204 |
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205 | //Read the ATR
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206 | ret = smart_read(reader,data, 40,1);
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207 | cs_debug_mask (D_IFD,"IO:SR: get ATR ret = %d" , ret);
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208 | if(ret)
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209 | cs_ddump(data,ATR_MAX_SIZE*2,"IO:SR: ");
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210 |
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211 | if(data[0]!=0x3B && data[0]!=0x03 && data[0]!=0x3F)
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212 | continue; // this is not a valid ATR.
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213 |
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214 | if(data[0]==0x03) {
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215 | cs_debug_mask (D_IFD,"IO:SR: Inverse convention detected, setting smartreader inv to 1");
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216 |
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217 | reader->sr_config.inv=1;
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218 | EnableSmartReader(reader, reader->sr_config.fs/10000, reader->sr_config.F, (BYTE)reader->sr_config.D, reader->sr_config.N, reader->sr_config.T, reader->sr_config.inv,reader->sr_config.parity);
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219 | }
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220 | // parse atr
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221 | if(ATR_InitFromArray (atr, data, ret) == ATR_OK) {
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222 | cs_debug_mask (D_IFD,"IO:SR: ATR parsing OK");
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223 | atr_ok=OK;
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224 | if(i==3) {
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225 | cs_debug_mask (D_IFD,"IO:SR: Locking F and D for Irdeto mode");
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226 | reader->sr_config.irdeto=TRUE;
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227 | }
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228 | }
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229 |
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230 | if(atr_ok == OK)
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231 | break;
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232 | }
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233 |
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234 |
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235 | return atr_ok;
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236 | }
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237 |
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238 | int SR_Transmit (struct s_reader *reader, BYTE * buffer, unsigned size)
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239 |
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240 | {
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241 | unsigned int ret;
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242 | ret = smart_write(reader, buffer, size, 0);
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243 | if (ret!=size)
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244 | return ERROR;
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245 |
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246 | return OK;
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247 | }
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248 |
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249 | int SR_Receive (struct s_reader *reader, BYTE * buffer, unsigned size)
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250 | {
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251 | unsigned int ret;
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252 | ret = smart_read(reader, buffer, size, 1);
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253 | if (ret!=size)
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254 | return ERROR;
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255 |
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256 | return OK;
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257 | }
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258 |
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259 | int SR_WriteSettings (struct s_reader *reader, unsigned short F, BYTE D, BYTE N, BYTE T)
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260 | {
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261 | // maintaining all this admin seems overdone, since after this init the values are nowhere needed
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262 | // reader[ridx].sr_config.F=F;
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263 | // reader[ridx].sr_config.D=D;
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264 | // reader[ridx].sr_config.N=N;
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265 | // reader[ridx].sr_config.T=T;
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266 | // reader->sr_config.fs=reader->mhz*10000; //freq in Hz */
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267 | // EnableSmartReader(reader, reader->sr_config.fs, reader->sr_config.F, (BYTE)reader->sr_config.D, reader->sr_config.N, reader->sr_config.T, reader->sr_config.inv,reader->sr_config.parity);
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268 |
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269 | // smartreader supports 3.20, 3.43, 3.69, 4.00, 4.36, 4.80, 5.34, 6.00, 6.86, 8.00, 9.61, 12.0, 16.0 Mhz
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270 | if (reader->mhz >=1600) reader->mhz = 1600; else
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271 | if (reader->mhz >=1200) reader->mhz = 1200; else
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272 | if (reader->mhz >=961) reader->mhz = 961; else
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273 | if (reader->mhz >=800) reader->mhz = 800; else
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274 | if (reader->mhz >=686) reader->mhz = 686; else
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275 | if (reader->mhz >=600) reader->mhz = 600; else
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276 | if (reader->mhz >=534) reader->mhz = 534; else
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277 | if (reader->mhz >=480) reader->mhz = 480; else
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278 | if (reader->mhz >=436) reader->mhz = 436; else
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279 | if (reader->mhz >=400) reader->mhz = 400; else
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280 | if (reader->mhz >=369) reader->mhz = 369; else
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281 | if (reader->mhz >=343) reader->mhz = 343; else
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282 | reader->mhz = 320;
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283 | EnableSmartReader(reader, reader->mhz, F, D, N, T, reader->sr_config.inv,reader->sr_config.parity);
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284 |
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285 | //baud rate not really used in native mode since
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286 | //it's handled by the card, so just set to maximum 3Mb/s
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287 | smartreader_set_baudrate(reader, 3000000);
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288 | sched_yield();
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289 |
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290 | return OK;
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291 | }
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292 |
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293 | int SR_SetParity (struct s_reader *reader)
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294 | {
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295 | int ret;
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296 |
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297 | char *parity_str[5]={"NONE", "ODD", "EVEN", "MARK", "SPACE"};
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298 | cs_debug_mask (D_IFD,"IO:SR: Setting parity to %s",parity_str[reader->sr_config.parity]);
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299 |
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300 | ret = smartreader_set_line_property(reader, (enum smartreader_bits_type) 8, STOP_BIT_2, reader->sr_config.parity);
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301 | if(ret)
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302 | return ERROR;
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303 |
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304 | sched_yield();
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305 |
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306 | return OK;
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307 | }
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308 |
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309 | int SR_Close (struct s_reader *reader)
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310 | {
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311 |
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312 | cs_debug_mask(D_IFD,"IO:SR: Closing smarteader\n");
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313 |
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314 | reader->sr_config.running=FALSE;
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315 | pthread_join(reader->rt,NULL);
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316 | libusb_close(reader->sr_config.usb_dev_handle);
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317 | libusb_exit(NULL);
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318 | return OK;
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319 |
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320 | }
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321 |
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322 |
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323 | static void EnableSmartReader(S_READER *reader, int clock, unsigned short Fi, unsigned char Di, unsigned char Ni, unsigned char T, unsigned char inv,int parity) {
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324 |
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325 | int ret = 0;
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326 | unsigned char FiDi[4];
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327 | unsigned short freqk;
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328 | unsigned char Freq[3];
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329 | unsigned char N[2];
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330 | unsigned char Prot[2];
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331 | unsigned char Invert[2];
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332 |
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333 | ret = smartreader_set_baudrate(reader, 9600);
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334 | smartreader_setflowctrl(reader, 0);
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335 | ret = smartreader_set_line_property(reader, (enum smartreader_bits_type) 5, STOP_BIT_2, NONE);
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336 |
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337 | // command 1, set F and D parameter
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338 | if(!reader->sr_config.irdeto) {
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339 | cs_debug_mask (D_IFD,"IO:SR: sending F=%04X (%d) to smartreader",Fi,Fi);
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340 | cs_debug_mask (D_IFD,"IO:SR: sending D=%02X (%d) to smartreader",Di,Di);
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341 | FiDi[0]=0x01;
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342 | FiDi[1]=HIBYTE(Fi);
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343 | FiDi[2]=LOBYTE(Fi);
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344 | FiDi[3]=Di;
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345 | ret = smart_write(reader,FiDi, sizeof (FiDi),0);
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346 | }
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347 | else {
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348 | cs_log("Not setting F and D as we're in Irdeto mode");
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349 | }
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350 |
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351 | // command 2, set the frequency in KHz
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352 | // direct from the source .. 4MHz is the best init frequency for T=0 card, but looks like it's causing issue with some nagra card, reveting to 3.69MHz
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353 | freqk = clock * 10; //clock with type int couldnt hold freq in Hz on all platforms, so I reverted to 10khz units (like mhz) - dingo
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354 | cs_debug_mask (D_IFD,"IO:SR: sending Freq=%04X (%d) to smartreader",freqk,freqk);
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355 | Freq[0]=0x02;
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356 | Freq[1]=HIBYTE(freqk);
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357 | Freq[2]=LOBYTE(freqk);
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358 | ret = smart_write(reader, Freq, sizeof (Freq),0);
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359 |
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360 | // command 3, set paramter N
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361 | cs_debug_mask (D_IFD,"IO:SR: sending N=%02X (%d) to smartreader",Ni,Ni);
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362 | N[0]=0x03;
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363 | N[1]=Ni;
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364 | ret = smart_write(reader, N, sizeof (N),0);
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365 |
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366 | // command 4 , set parameter T
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367 | if(reader->sr_config.irdeto) // special trick to get ATR for Irdeto card, we need T=1 at reset, after that oscam takes care of T1 protocol, so we need T=0
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368 | {
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369 | T=1;
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370 | reader->sr_config.T=1;
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371 | }
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372 | else if (T==1)
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373 | T=0; // T=1 protocol is handled by oscam
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374 |
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375 | cs_debug_mask (D_IFD,"IO:SR: sending T=%02X (%d) to smartreader",T,T);
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376 | Prot[0]=0x04;
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377 | Prot[1]=T;
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378 | ret = smart_write(reader, Prot, sizeof (Prot),0);
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379 |
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380 | // command 5, set invert y/n
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381 | cs_debug_mask (D_IFD,"IO:SR: sending inv=%02X to smartreader",inv);
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382 | Invert[0]=0x05;
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383 | Invert[1]=inv;
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384 | ret = smart_write(reader, Invert, sizeof (Invert),0);
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385 |
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386 | ret = smartreader_set_line_property2(reader, BITS_8, STOP_BIT_2, parity, BREAK_ON);
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387 | // send break for 350ms, also comes from JoePub debugging.
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388 | cs_sleepms(350);
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389 | ret = smartreader_set_line_property2(reader, BITS_8, STOP_BIT_2, parity, BREAK_OFF);
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390 |
|
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391 | smart_flush(reader);
|
---|
392 | }
|
---|
393 |
|
---|
394 | static void ResetSmartReader(S_READER *reader)
|
---|
395 | {
|
---|
396 |
|
---|
397 | smart_flush(reader);
|
---|
398 | // set smartreader+ default values
|
---|
399 | reader->sr_config.F=372;
|
---|
400 | reader->sr_config.D=1.0;
|
---|
401 | if(reader->mhz==reader->cardmhz && reader->cardmhz*10000 > 3690000)
|
---|
402 | reader->sr_config.fs=reader->cardmhz*10000;
|
---|
403 | else
|
---|
404 | reader->sr_config.fs=3690000;
|
---|
405 | reader->sr_config.N=0;
|
---|
406 | reader->sr_config.T=0;
|
---|
407 | reader->sr_config.inv=0;
|
---|
408 |
|
---|
409 | EnableSmartReader(reader, reader->sr_config.fs/10000, reader->sr_config.F, (BYTE)reader->sr_config.D, reader->sr_config.N, reader->sr_config.T, reader->sr_config.inv,reader->sr_config.parity);
|
---|
410 | sched_yield();
|
---|
411 |
|
---|
412 | }
|
---|
413 |
|
---|
414 | static bool smartreader_check_endpoint(libusb_device *usb_dev)
|
---|
415 | {
|
---|
416 | struct libusb_device_descriptor desc;
|
---|
417 | struct libusb_config_descriptor *configDesc;
|
---|
418 | int ret;
|
---|
419 | int j,k,l;
|
---|
420 | uint8_t tmpEndpointAddress;
|
---|
421 | int nb_endpoint_ok;
|
---|
422 |
|
---|
423 |
|
---|
424 | nb_endpoint_ok=0;
|
---|
425 | ret = libusb_get_device_descriptor(usb_dev, &desc);
|
---|
426 | if (ret < 0) {
|
---|
427 | cs_log("Smartreader : couldn't read device descriptor, assuming this is not a smartreader");
|
---|
428 | return FALSE;
|
---|
429 | }
|
---|
430 | if (desc.bNumConfigurations) {
|
---|
431 | ret=libusb_get_active_config_descriptor(usb_dev,&configDesc);
|
---|
432 | if(ret) {
|
---|
433 | cs_log("Smartreader : couldn't read config descriptor , assuming this is not a smartreader");
|
---|
434 | return FALSE;
|
---|
435 | }
|
---|
436 |
|
---|
437 | for(j=0; j<configDesc->bNumInterfaces; j++)
|
---|
438 | for(k=0; k<configDesc->interface[j].num_altsetting; k++)
|
---|
439 | for(l=0; l<configDesc->interface[j].altsetting[k].bNumEndpoints; l++) {
|
---|
440 | tmpEndpointAddress=configDesc->interface[j].altsetting[k].endpoint[l].bEndpointAddress;
|
---|
441 | if((tmpEndpointAddress== 0x1) || (tmpEndpointAddress== 0x82))
|
---|
442 | nb_endpoint_ok++;
|
---|
443 | }
|
---|
444 | }
|
---|
445 | if(nb_endpoint_ok!=2)
|
---|
446 | return FALSE;
|
---|
447 | return TRUE;
|
---|
448 | }
|
---|
449 |
|
---|
450 |
|
---|
451 | static struct libusb_device* find_smartreader(const char *busname,const char *devname)
|
---|
452 | {
|
---|
453 | int dev_found;
|
---|
454 | libusb_device *dev;
|
---|
455 | libusb_device_handle *usb_dev_handle;
|
---|
456 | libusb_device **devs;
|
---|
457 | ssize_t cnt;
|
---|
458 | int i = 0;
|
---|
459 | int ret;
|
---|
460 | struct libusb_device_descriptor desc;
|
---|
461 |
|
---|
462 | cnt = libusb_get_device_list(NULL, &devs);
|
---|
463 | if (cnt < 0)
|
---|
464 | return NULL;
|
---|
465 |
|
---|
466 | while ((dev = devs[i++]) != NULL) {
|
---|
467 | dev_found=FALSE;
|
---|
468 | ret = libusb_get_device_descriptor(dev, &desc);
|
---|
469 | if (ret < 0) {
|
---|
470 | cs_log("failed to get device descriptor for device %s on bus %s\n",devname,busname);
|
---|
471 | return NULL;
|
---|
472 | }
|
---|
473 |
|
---|
474 | if (desc.idVendor==0x0403 && desc.idProduct==0x6001) {
|
---|
475 | ret=libusb_open(dev,&usb_dev_handle);
|
---|
476 | if (ret) {
|
---|
477 | cs_log ("coulnd't open device %03d:%03d\n", libusb_get_bus_number(dev), libusb_get_device_address(dev));
|
---|
478 | continue;
|
---|
479 | }
|
---|
480 |
|
---|
481 | if(libusb_get_bus_number(dev)==atoi(busname) && libusb_get_device_address(dev)==atoi(devname)) {
|
---|
482 | cs_debug_mask(D_IFD,"IO:SR: Checking FTDI device: %03d on bus %03d",libusb_get_device_address(dev),libusb_get_bus_number(dev));
|
---|
483 | // check for smargo endpoints.
|
---|
484 | if(smartreader_check_endpoint(dev))
|
---|
485 | dev_found=TRUE;
|
---|
486 | }
|
---|
487 |
|
---|
488 |
|
---|
489 | libusb_close(usb_dev_handle);
|
---|
490 | }
|
---|
491 |
|
---|
492 | if (dev_found)
|
---|
493 | break;
|
---|
494 | }
|
---|
495 |
|
---|
496 | if(!dev_found) {
|
---|
497 | cs_log("Smartreader device %s:%s not found",busname,devname);
|
---|
498 | return NULL;
|
---|
499 | }
|
---|
500 | else
|
---|
501 | cs_log("Found smartreader device %s:%s",busname,devname);
|
---|
502 |
|
---|
503 | return dev;
|
---|
504 | }
|
---|
505 |
|
---|
506 | void smartreader_init(S_READER *reader)
|
---|
507 | {
|
---|
508 | reader->sr_config.usb_dev = NULL;
|
---|
509 | reader->sr_config.usb_dev_handle=NULL;
|
---|
510 | reader->sr_config.usb_read_timeout = 10000;
|
---|
511 | reader->sr_config.usb_write_timeout = 10000;
|
---|
512 |
|
---|
513 | reader->sr_config.type = TYPE_BM; /* chip type */
|
---|
514 | reader->sr_config.baudrate = -1;
|
---|
515 | reader->sr_config.bitbang_enabled = 0; /* 0: normal mode 1: any of the bitbang modes enabled */
|
---|
516 |
|
---|
517 | reader->sr_config.writebuffer_chunksize = 64;
|
---|
518 | reader->sr_config.max_packet_size = 0;
|
---|
519 |
|
---|
520 | reader->sr_config.interface = INTERFACE_ANY;
|
---|
521 | reader->sr_config.index = INTERFACE_A;
|
---|
522 | reader->sr_config.in_ep = 0x02;
|
---|
523 | reader->sr_config.out_ep = 0x82;
|
---|
524 | }
|
---|
525 |
|
---|
526 |
|
---|
527 | static unsigned int smartreader_determine_max_packet_size(S_READER *reader)
|
---|
528 | {
|
---|
529 | unsigned int packet_size;
|
---|
530 | struct libusb_device_descriptor desc;
|
---|
531 | struct libusb_config_descriptor *configDesc;
|
---|
532 | struct libusb_interface interface;
|
---|
533 | struct libusb_interface_descriptor intDesc;
|
---|
534 |
|
---|
535 | int ret;
|
---|
536 | // Determine maximum packet size. Init with default value.
|
---|
537 | // New hi-speed devices from FTDI use a packet size of 512 bytes
|
---|
538 | // but could be connected to a normal speed USB hub -> 64 bytes packet size.
|
---|
539 | if (reader->sr_config.type == TYPE_2232H || reader->sr_config.type == TYPE_4232H)
|
---|
540 | packet_size = 512;
|
---|
541 | else
|
---|
542 | packet_size = 64;
|
---|
543 |
|
---|
544 | ret = libusb_get_device_descriptor(reader->sr_config.usb_dev, &desc);
|
---|
545 | if (ret < 0) {
|
---|
546 | cs_log("Smartreader : couldn't read device descriptor , using default packet size");
|
---|
547 | return packet_size;
|
---|
548 | }
|
---|
549 | if (desc.bNumConfigurations)
|
---|
550 | {
|
---|
551 | ret=libusb_get_active_config_descriptor(reader->sr_config.usb_dev,&configDesc);
|
---|
552 | if(ret) {
|
---|
553 | cs_log("Smartreader : couldn't read config descriptor , using default packet size");
|
---|
554 | return packet_size;
|
---|
555 | }
|
---|
556 |
|
---|
557 | if (reader->sr_config.interface < configDesc->bNumInterfaces)
|
---|
558 | {
|
---|
559 | interface=configDesc->interface[reader->sr_config.interface];
|
---|
560 | if (interface.num_altsetting > 0)
|
---|
561 | {
|
---|
562 | intDesc = interface.altsetting[0];
|
---|
563 | if (intDesc.bNumEndpoints > 0)
|
---|
564 | {
|
---|
565 | packet_size = intDesc.endpoint[0].wMaxPacketSize;
|
---|
566 | }
|
---|
567 | }
|
---|
568 | }
|
---|
569 | }
|
---|
570 |
|
---|
571 | return packet_size;
|
---|
572 | }
|
---|
573 |
|
---|
574 |
|
---|
575 | static int smartreader_usb_close_internal (S_READER *reader)
|
---|
576 | {
|
---|
577 | int ret = 0;
|
---|
578 |
|
---|
579 | if (reader->sr_config.usb_dev_handle)
|
---|
580 | {
|
---|
581 | libusb_close (reader->sr_config.usb_dev_handle);
|
---|
582 | reader->sr_config.usb_dev_handle=NULL;
|
---|
583 | }
|
---|
584 |
|
---|
585 | return ret;
|
---|
586 | }
|
---|
587 |
|
---|
588 |
|
---|
589 | int smartreader_usb_reset(S_READER *reader)
|
---|
590 | {
|
---|
591 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
592 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
593 | SIO_RESET_REQUEST,
|
---|
594 | SIO_RESET_SIO,
|
---|
595 | reader->sr_config.index,
|
---|
596 | NULL,
|
---|
597 | 0,
|
---|
598 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
599 | cs_log("Smartreader reset failed");
|
---|
600 | return (-1);
|
---|
601 | }
|
---|
602 |
|
---|
603 | // Invalidate data in the readbuffer
|
---|
604 | // ftdi->readbuffer_offset = 0;
|
---|
605 | // ftdi->readbuffer_remaining = 0;
|
---|
606 |
|
---|
607 | return 0;
|
---|
608 | }
|
---|
609 |
|
---|
610 |
|
---|
611 | int smartreader_usb_open_dev(S_READER *reader)
|
---|
612 | {
|
---|
613 | int detach_errno = 0;
|
---|
614 | struct libusb_device_descriptor desc;
|
---|
615 | int ret;
|
---|
616 |
|
---|
617 | #ifdef __WIN32__
|
---|
618 | int config;
|
---|
619 | int config_val = 1;
|
---|
620 | #endif
|
---|
621 |
|
---|
622 | ret=libusb_open(reader->sr_config.usb_dev,&reader->sr_config.usb_dev_handle);
|
---|
623 | if (ret) {
|
---|
624 | cs_log("Smartreader usb_open() failed");
|
---|
625 | return (-4);
|
---|
626 | }
|
---|
627 | #if defined(OS_LINUX)
|
---|
628 | // Try to detach smartreader_sio kernel module.
|
---|
629 | // Returns ENODATA if driver is not loaded.
|
---|
630 | //
|
---|
631 | // The return code is kept in a separate variable and only parsed
|
---|
632 | // if usb_set_configuration() or usb_claim_interface() fails as the
|
---|
633 | // detach operation might be denied and everything still works fine.
|
---|
634 | // Likely scenario is a static smartreader_sio kernel module.
|
---|
635 | if (libusb_detach_kernel_driver(reader->sr_config.usb_dev_handle, reader->sr_config.interface) != 0 && errno != ENODATA) {
|
---|
636 | detach_errno = errno;
|
---|
637 | cs_log("Couldn't detach interface from kernel. Please unload the FTDI drivers");
|
---|
638 | return(LIBUSB_ERROR_NOT_SUPPORTED);
|
---|
639 | }
|
---|
640 | #endif
|
---|
641 | ret = libusb_get_device_descriptor(reader->sr_config.usb_dev, &desc);
|
---|
642 |
|
---|
643 | #ifdef __WIN32__
|
---|
644 | // set configuration (needed especially for windows)
|
---|
645 | // tolerate EBUSY: one device with one configuration, but two interfaces
|
---|
646 | // and libftdi sessions to both interfaces (e.g. FT2232)
|
---|
647 |
|
---|
648 | if (desc.bNumConfigurations > 0)
|
---|
649 | {
|
---|
650 | ret=libusb_get_configuration(reader->sr_config.usb_dev_handle,&config);
|
---|
651 |
|
---|
652 | // libusb-win32 on Windows 64 can return a null pointer for a valid device
|
---|
653 | if (libusb_set_configuration(reader->sr_config.usb_dev_handle, config) &&
|
---|
654 | errno != EBUSY)
|
---|
655 | {
|
---|
656 | smartreader_usb_close_internal (reader);
|
---|
657 | if (detach_errno == EPERM) {
|
---|
658 | cs_log("inappropriate permissions on device!");
|
---|
659 | return(-8);
|
---|
660 | }
|
---|
661 | else {
|
---|
662 | cs_log("unable to set usb configuration. Make sure smartreader_sio is unloaded!");
|
---|
663 | return (-3);
|
---|
664 | }
|
---|
665 | }
|
---|
666 | }
|
---|
667 | #endif
|
---|
668 |
|
---|
669 | ret=libusb_claim_interface(reader->sr_config.usb_dev_handle, reader->sr_config.interface) ;
|
---|
670 | if (ret!= 0)
|
---|
671 | {
|
---|
672 | smartreader_usb_close_internal (reader);
|
---|
673 | if (detach_errno == EPERM) {
|
---|
674 | cs_log("inappropriate permissions on device!");
|
---|
675 | return (-8);
|
---|
676 | }
|
---|
677 | else {
|
---|
678 | cs_log("unable to claim usb device. Make sure smartreader_sio is unloaded!");
|
---|
679 | return (-5);
|
---|
680 | }
|
---|
681 | }
|
---|
682 |
|
---|
683 | if (smartreader_usb_reset (reader) != 0) {
|
---|
684 | smartreader_usb_close_internal (reader);
|
---|
685 | cs_log("smartreader_usb_reset failed");
|
---|
686 | return (-6);
|
---|
687 | }
|
---|
688 |
|
---|
689 | // Try to guess chip type
|
---|
690 | // Bug in the BM type chips: bcdDevice is 0x200 for serial == 0
|
---|
691 | if (desc.bcdDevice == 0x400 || (desc.bcdDevice == 0x200
|
---|
692 | && desc.iSerialNumber == 0))
|
---|
693 | reader->sr_config.type = TYPE_BM;
|
---|
694 | else if (desc.bcdDevice == 0x200)
|
---|
695 | reader->sr_config.type = TYPE_AM;
|
---|
696 | else if (desc.bcdDevice == 0x500)
|
---|
697 | reader->sr_config.type = TYPE_2232C;
|
---|
698 | else if (desc.bcdDevice == 0x600)
|
---|
699 | reader->sr_config.type = TYPE_R;
|
---|
700 | else if (desc.bcdDevice == 0x700)
|
---|
701 | reader->sr_config.type = TYPE_2232H;
|
---|
702 | else if (desc.bcdDevice == 0x800)
|
---|
703 | reader->sr_config.type = TYPE_4232H;
|
---|
704 |
|
---|
705 | // Set default interface on dual/quad type chips
|
---|
706 | switch(reader->sr_config.type) {
|
---|
707 | case TYPE_2232C:
|
---|
708 | case TYPE_2232H:
|
---|
709 | case TYPE_4232H:
|
---|
710 | if (!reader->sr_config.index)
|
---|
711 | reader->sr_config.index = INTERFACE_A;
|
---|
712 | break;
|
---|
713 | default:
|
---|
714 | break;
|
---|
715 | }
|
---|
716 |
|
---|
717 | // Determine maximum packet size
|
---|
718 | reader->sr_config.max_packet_size = smartreader_determine_max_packet_size(reader);
|
---|
719 |
|
---|
720 | if (smartreader_set_baudrate (reader, 9600) != 0) {
|
---|
721 | smartreader_usb_close_internal (reader);
|
---|
722 | cs_log("set baudrate failed");
|
---|
723 | return (-7);
|
---|
724 | }
|
---|
725 |
|
---|
726 | return (0);
|
---|
727 | }
|
---|
728 |
|
---|
729 |
|
---|
730 | int smartreader_usb_purge_rx_buffer(S_READER *reader)
|
---|
731 | {
|
---|
732 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
733 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
734 | SIO_RESET_REQUEST,
|
---|
735 | SIO_RESET_PURGE_RX,
|
---|
736 | reader->sr_config.index,
|
---|
737 | NULL,
|
---|
738 | 0,
|
---|
739 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
740 | cs_log("FTDI purge of RX buffer failed");
|
---|
741 | return (-1);
|
---|
742 | }
|
---|
743 |
|
---|
744 |
|
---|
745 | return 0;
|
---|
746 | }
|
---|
747 |
|
---|
748 | int smartreader_usb_purge_tx_buffer(S_READER *reader)
|
---|
749 | {
|
---|
750 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
751 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
752 | SIO_RESET_REQUEST,
|
---|
753 | SIO_RESET_PURGE_TX,
|
---|
754 | reader->sr_config.index,
|
---|
755 | NULL,
|
---|
756 | 0,
|
---|
757 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
758 | cs_log("FTDI purge of TX buffer failed");
|
---|
759 | return (-1);
|
---|
760 | }
|
---|
761 |
|
---|
762 | return 0;
|
---|
763 | }
|
---|
764 |
|
---|
765 | int smartreader_usb_purge_buffers(S_READER *reader)
|
---|
766 | {
|
---|
767 | int result;
|
---|
768 |
|
---|
769 | result = smartreader_usb_purge_rx_buffer(reader);
|
---|
770 | if (result < 0)
|
---|
771 | return -1;
|
---|
772 |
|
---|
773 | result = smartreader_usb_purge_tx_buffer(reader);
|
---|
774 | if (result < 0)
|
---|
775 | return -2;
|
---|
776 |
|
---|
777 | return 0;
|
---|
778 | }
|
---|
779 |
|
---|
780 | static int smartreader_convert_baudrate(int baudrate, S_READER *reader, unsigned short *value, unsigned short *index)
|
---|
781 | {
|
---|
782 | static const char am_adjust_up[8] = {0, 0, 0, 1, 0, 3, 2, 1};
|
---|
783 | static const char am_adjust_dn[8] = {0, 0, 0, 1, 0, 1, 2, 3};
|
---|
784 | static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7};
|
---|
785 | int divisor, best_divisor, best_baud, best_baud_diff;
|
---|
786 | unsigned long encoded_divisor;
|
---|
787 | int i;
|
---|
788 |
|
---|
789 | if (baudrate <= 0)
|
---|
790 | {
|
---|
791 | // Return error
|
---|
792 | return -1;
|
---|
793 | }
|
---|
794 |
|
---|
795 | divisor = 24000000 / baudrate;
|
---|
796 |
|
---|
797 | if (reader->sr_config.type == TYPE_AM)
|
---|
798 | {
|
---|
799 | // Round down to supported fraction (AM only)
|
---|
800 | divisor -= am_adjust_dn[divisor & 7];
|
---|
801 | }
|
---|
802 |
|
---|
803 | // Try this divisor and the one above it (because division rounds down)
|
---|
804 | best_divisor = 0;
|
---|
805 | best_baud = 0;
|
---|
806 | best_baud_diff = 0;
|
---|
807 | for (i = 0; i < 2; i++)
|
---|
808 | {
|
---|
809 | int try_divisor = divisor + i;
|
---|
810 | int baud_estimate;
|
---|
811 | int baud_diff;
|
---|
812 |
|
---|
813 | // Round up to supported divisor value
|
---|
814 | if (try_divisor <= 8)
|
---|
815 | {
|
---|
816 | // Round up to minimum supported divisor
|
---|
817 | try_divisor = 8;
|
---|
818 | }
|
---|
819 | else if (reader->sr_config.type != TYPE_AM && try_divisor < 12)
|
---|
820 | {
|
---|
821 | // BM doesn't support divisors 9 through 11 inclusive
|
---|
822 | try_divisor = 12;
|
---|
823 | }
|
---|
824 | else if (divisor < 16)
|
---|
825 | {
|
---|
826 | // AM doesn't support divisors 9 through 15 inclusive
|
---|
827 | try_divisor = 16;
|
---|
828 | }
|
---|
829 | else
|
---|
830 | {
|
---|
831 | if (reader->sr_config.type == TYPE_AM)
|
---|
832 | {
|
---|
833 | // Round up to supported fraction (AM only)
|
---|
834 | try_divisor += am_adjust_up[try_divisor & 7];
|
---|
835 | if (try_divisor > 0x1FFF8)
|
---|
836 | {
|
---|
837 | // Round down to maximum supported divisor value (for AM)
|
---|
838 | try_divisor = 0x1FFF8;
|
---|
839 | }
|
---|
840 | }
|
---|
841 | else
|
---|
842 | {
|
---|
843 | if (try_divisor > 0x1FFFF)
|
---|
844 | {
|
---|
845 | // Round down to maximum supported divisor value (for BM)
|
---|
846 | try_divisor = 0x1FFFF;
|
---|
847 | }
|
---|
848 | }
|
---|
849 | }
|
---|
850 | // Get estimated baud rate (to nearest integer)
|
---|
851 | baud_estimate = (24000000 + (try_divisor / 2)) / try_divisor;
|
---|
852 | // Get absolute difference from requested baud rate
|
---|
853 | if (baud_estimate < baudrate)
|
---|
854 | {
|
---|
855 | baud_diff = baudrate - baud_estimate;
|
---|
856 | }
|
---|
857 | else
|
---|
858 | {
|
---|
859 | baud_diff = baud_estimate - baudrate;
|
---|
860 | }
|
---|
861 | if (i == 0 || baud_diff < best_baud_diff)
|
---|
862 | {
|
---|
863 | // Closest to requested baud rate so far
|
---|
864 | best_divisor = try_divisor;
|
---|
865 | best_baud = baud_estimate;
|
---|
866 | best_baud_diff = baud_diff;
|
---|
867 | if (baud_diff == 0)
|
---|
868 | {
|
---|
869 | // Spot on! No point trying
|
---|
870 | break;
|
---|
871 | }
|
---|
872 | }
|
---|
873 | }
|
---|
874 | // Encode the best divisor value
|
---|
875 | encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 7] << 14);
|
---|
876 | // Deal with special cases for encoded value
|
---|
877 | if (encoded_divisor == 1)
|
---|
878 | {
|
---|
879 | encoded_divisor = 0; // 3000000 baud
|
---|
880 | }
|
---|
881 | else if (encoded_divisor == 0x4001)
|
---|
882 | {
|
---|
883 | encoded_divisor = 1; // 2000000 baud (BM only)
|
---|
884 | }
|
---|
885 | // Split into "value" and "index" values
|
---|
886 | *value = (unsigned short)(encoded_divisor & 0xFFFF);
|
---|
887 | if (reader->sr_config.type == TYPE_2232C || reader->sr_config.type == TYPE_2232H || reader->sr_config.type == TYPE_4232H)
|
---|
888 | {
|
---|
889 | *index = (unsigned short)(encoded_divisor >> 8);
|
---|
890 | *index &= 0xFF00;
|
---|
891 | *index |= reader->sr_config.index;
|
---|
892 | }
|
---|
893 | else
|
---|
894 | *index = (unsigned short)(encoded_divisor >> 16);
|
---|
895 |
|
---|
896 | // Return the nearest baud rate
|
---|
897 | return best_baud;
|
---|
898 | }
|
---|
899 |
|
---|
900 | int smartreader_set_baudrate(S_READER *reader, int baudrate)
|
---|
901 | {
|
---|
902 | unsigned short value, index;
|
---|
903 | int actual_baudrate;
|
---|
904 |
|
---|
905 | if (reader->sr_config.bitbang_enabled)
|
---|
906 | {
|
---|
907 | baudrate = baudrate*4;
|
---|
908 | }
|
---|
909 |
|
---|
910 | actual_baudrate = smartreader_convert_baudrate(baudrate, reader, &value, &index);
|
---|
911 | if (actual_baudrate <= 0) {
|
---|
912 | cs_log("Silly baudrate <= 0.");
|
---|
913 | return (-1);
|
---|
914 | }
|
---|
915 |
|
---|
916 | // Check within tolerance (about 5%)
|
---|
917 | if ((actual_baudrate * 2 < baudrate /* Catch overflows */ )
|
---|
918 | || ((actual_baudrate < baudrate)
|
---|
919 | ? (actual_baudrate * 21 < baudrate * 20)
|
---|
920 | : (baudrate * 21 < actual_baudrate * 20))) {
|
---|
921 | cs_log("Unsupported baudrate. Note: bitbang baudrates are automatically multiplied by 4");
|
---|
922 | return (-1);
|
---|
923 | }
|
---|
924 |
|
---|
925 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
926 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
927 | SIO_SET_BAUDRATE_REQUEST,
|
---|
928 | value,
|
---|
929 | index,
|
---|
930 | NULL,
|
---|
931 | 0,
|
---|
932 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
933 | cs_log("Setting new baudrate failed");
|
---|
934 | return (-2);
|
---|
935 | }
|
---|
936 |
|
---|
937 | reader->sr_config.baudrate = baudrate;
|
---|
938 | return 0;
|
---|
939 | }
|
---|
940 |
|
---|
941 | int smartreader_setdtr_rts(S_READER *reader, int dtr, int rts)
|
---|
942 | {
|
---|
943 | unsigned short usb_val;
|
---|
944 |
|
---|
945 | if (dtr)
|
---|
946 | usb_val = SIO_SET_DTR_HIGH;
|
---|
947 | else
|
---|
948 | usb_val = SIO_SET_DTR_LOW;
|
---|
949 |
|
---|
950 | if (rts)
|
---|
951 | usb_val |= SIO_SET_RTS_HIGH;
|
---|
952 | else
|
---|
953 | usb_val |= SIO_SET_RTS_LOW;
|
---|
954 |
|
---|
955 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
956 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
957 | SIO_SET_MODEM_CTRL_REQUEST,
|
---|
958 | usb_val,
|
---|
959 | reader->sr_config.index,
|
---|
960 | NULL,
|
---|
961 | 0,
|
---|
962 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
963 | cs_log("set of rts/dtr failed");
|
---|
964 | return (-1);
|
---|
965 | }
|
---|
966 |
|
---|
967 | return 0;
|
---|
968 | }
|
---|
969 |
|
---|
970 | int smartreader_setflowctrl(S_READER *reader, int flowctrl)
|
---|
971 | {
|
---|
972 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
973 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
974 | SIO_SET_FLOW_CTRL_REQUEST,
|
---|
975 | 0,
|
---|
976 | (flowctrl | reader->sr_config.index),
|
---|
977 | NULL,
|
---|
978 | 0,
|
---|
979 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
980 | cs_log("set flow control failed");
|
---|
981 | return (-1);
|
---|
982 | }
|
---|
983 |
|
---|
984 | return 0;
|
---|
985 | }
|
---|
986 |
|
---|
987 | int smartreader_set_line_property2(S_READER *reader, enum smartreader_bits_type bits,
|
---|
988 | enum smartreader_stopbits_type sbit, enum smartreader_parity_type parity,
|
---|
989 | enum smartreader_break_type break_type)
|
---|
990 | {
|
---|
991 | unsigned short value = bits;
|
---|
992 |
|
---|
993 | switch (parity)
|
---|
994 | {
|
---|
995 | case NONE:
|
---|
996 | value |= (0x00 << 8);
|
---|
997 | break;
|
---|
998 | case ODD:
|
---|
999 | value |= (0x01 << 8);
|
---|
1000 | break;
|
---|
1001 | case EVEN:
|
---|
1002 | value |= (0x02 << 8);
|
---|
1003 | break;
|
---|
1004 | case MARK:
|
---|
1005 | value |= (0x03 << 8);
|
---|
1006 | break;
|
---|
1007 | case SPACE:
|
---|
1008 | value |= (0x04 << 8);
|
---|
1009 | break;
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | switch (sbit)
|
---|
1013 | {
|
---|
1014 | case STOP_BIT_1:
|
---|
1015 | value |= (0x00 << 11);
|
---|
1016 | break;
|
---|
1017 | case STOP_BIT_15:
|
---|
1018 | value |= (0x01 << 11);
|
---|
1019 | break;
|
---|
1020 | case STOP_BIT_2:
|
---|
1021 | value |= (0x02 << 11);
|
---|
1022 | break;
|
---|
1023 | }
|
---|
1024 |
|
---|
1025 | switch (break_type)
|
---|
1026 | {
|
---|
1027 | case BREAK_OFF:
|
---|
1028 | value |= (0x00 << 14);
|
---|
1029 | break;
|
---|
1030 | case BREAK_ON:
|
---|
1031 | value |= (0x01 << 14);
|
---|
1032 | break;
|
---|
1033 | }
|
---|
1034 |
|
---|
1035 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
1036 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
1037 | SIO_SET_DATA_REQUEST,
|
---|
1038 | value,
|
---|
1039 | reader->sr_config.index,
|
---|
1040 | NULL,
|
---|
1041 | 0,
|
---|
1042 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
1043 | cs_log("Setting new line property failed");
|
---|
1044 | return (-1);
|
---|
1045 | }
|
---|
1046 |
|
---|
1047 | return 0;
|
---|
1048 | }
|
---|
1049 |
|
---|
1050 |
|
---|
1051 | int smartreader_set_line_property(S_READER *reader, enum smartreader_bits_type bits,
|
---|
1052 | enum smartreader_stopbits_type sbit, enum smartreader_parity_type parity)
|
---|
1053 | {
|
---|
1054 | return smartreader_set_line_property2(reader, bits, sbit, parity, BREAK_OFF);
|
---|
1055 | }
|
---|
1056 |
|
---|
1057 |
|
---|
1058 |
|
---|
1059 | void smart_flush(S_READER *reader)
|
---|
1060 | {
|
---|
1061 |
|
---|
1062 | smartreader_usb_purge_buffers(reader);
|
---|
1063 |
|
---|
1064 | pthread_mutex_lock(&reader->g_read_mutex);
|
---|
1065 | reader->g_read_buffer_size = 0;
|
---|
1066 | pthread_mutex_unlock(&reader->g_read_mutex);
|
---|
1067 | sched_yield();
|
---|
1068 | }
|
---|
1069 |
|
---|
1070 | static int smart_read(S_READER *reader, unsigned char* buff, unsigned int size, int timeout_sec)
|
---|
1071 | {
|
---|
1072 |
|
---|
1073 | int ret = 0;
|
---|
1074 | unsigned int total_read = 0;
|
---|
1075 | struct timeval start, now, dif = {0,0};
|
---|
1076 | gettimeofday(&start,NULL);
|
---|
1077 |
|
---|
1078 | while(total_read < size && dif.tv_sec < timeout_sec) {
|
---|
1079 | pthread_mutex_lock(&reader->g_read_mutex);
|
---|
1080 |
|
---|
1081 | if(reader->g_read_buffer_size > 0) {
|
---|
1082 |
|
---|
1083 | ret = reader->g_read_buffer_size > size-total_read ? size-total_read : reader->g_read_buffer_size;
|
---|
1084 | memcpy(buff+total_read,reader->g_read_buffer,ret);
|
---|
1085 | reader->g_read_buffer_size -= ret;
|
---|
1086 |
|
---|
1087 | if(reader->g_read_buffer_size > 0){
|
---|
1088 | memcpy(reader->g_read_buffer, reader->g_read_buffer + ret, reader->g_read_buffer_size);
|
---|
1089 | }
|
---|
1090 |
|
---|
1091 | total_read+=ret;
|
---|
1092 | }
|
---|
1093 | pthread_mutex_unlock(&reader->g_read_mutex);
|
---|
1094 |
|
---|
1095 | gettimeofday(&now,NULL);
|
---|
1096 | timersub(&now, &start, &dif);
|
---|
1097 | struct timespec req_ts;
|
---|
1098 | req_ts.tv_sec = 0;
|
---|
1099 | req_ts.tv_nsec = 50000;
|
---|
1100 | nanosleep (&req_ts, NULL);//behaves better to signals than usleep and sleep
|
---|
1101 | sched_yield();
|
---|
1102 | }
|
---|
1103 | cs_ddump(buff, total_read, "SR IO: Receive: ");
|
---|
1104 |
|
---|
1105 |
|
---|
1106 | return total_read;
|
---|
1107 | }
|
---|
1108 |
|
---|
1109 | int smartreader_write_data(S_READER *reader, unsigned char *buf, unsigned int size)
|
---|
1110 | {
|
---|
1111 | int ret;
|
---|
1112 | int write_size;
|
---|
1113 | unsigned int offset = 0;
|
---|
1114 | int total_written = 0;
|
---|
1115 | int written;
|
---|
1116 |
|
---|
1117 | if(size<reader->sr_config.writebuffer_chunksize)
|
---|
1118 | write_size=size;
|
---|
1119 | else
|
---|
1120 | write_size = reader->sr_config.writebuffer_chunksize;
|
---|
1121 |
|
---|
1122 | while (offset < size)
|
---|
1123 | {
|
---|
1124 |
|
---|
1125 | if (offset+write_size > size)
|
---|
1126 | write_size = size-offset;
|
---|
1127 |
|
---|
1128 | ret = libusb_bulk_transfer(reader->sr_config.usb_dev_handle,
|
---|
1129 | reader->sr_config.in_ep,
|
---|
1130 | buf+offset,
|
---|
1131 | write_size,
|
---|
1132 | &written,
|
---|
1133 | reader->sr_config.usb_write_timeout);
|
---|
1134 | if (ret < 0) {
|
---|
1135 | cs_log("usb bulk write failed : ret = %d",ret);
|
---|
1136 | return(ret);
|
---|
1137 | }
|
---|
1138 | cs_ddump(buf+offset, written, "SR IO: Transmit: ");
|
---|
1139 | total_written += written;
|
---|
1140 | offset += write_size;//FIXME shouldnt this be written?
|
---|
1141 | }
|
---|
1142 |
|
---|
1143 | return total_written;
|
---|
1144 | }
|
---|
1145 |
|
---|
1146 | static int smartreader_set_latency_timer(S_READER *reader, unsigned short latency)
|
---|
1147 | {
|
---|
1148 | unsigned short usb_val;
|
---|
1149 |
|
---|
1150 | if (latency < 1) {
|
---|
1151 | cs_log("latency out of range. Only valid for 1-255");
|
---|
1152 | return (-1);
|
---|
1153 | }
|
---|
1154 |
|
---|
1155 | usb_val = latency;
|
---|
1156 | if (libusb_control_transfer(reader->sr_config.usb_dev_handle,
|
---|
1157 | FTDI_DEVICE_OUT_REQTYPE,
|
---|
1158 | SIO_SET_LATENCY_TIMER_REQUEST,
|
---|
1159 | usb_val,
|
---|
1160 | reader->sr_config.index,
|
---|
1161 | NULL,
|
---|
1162 | 0,
|
---|
1163 | reader->sr_config.usb_write_timeout) != 0) {
|
---|
1164 | cs_log("unable to set latency timer");
|
---|
1165 | return (-2);
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | return 0;
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 | static int smart_write(S_READER *reader, unsigned char* buff, unsigned int size, int udelay)
|
---|
1172 | {
|
---|
1173 |
|
---|
1174 | int ret = 0;
|
---|
1175 | unsigned int idx;
|
---|
1176 |
|
---|
1177 | if (udelay == 0) {
|
---|
1178 | ret = smartreader_write_data(reader, buff, size);
|
---|
1179 | if(ret<0) {
|
---|
1180 | cs_debug_mask (D_IFD,"IO:SR: USB write error : %d",ret);
|
---|
1181 | }
|
---|
1182 | }
|
---|
1183 | else {
|
---|
1184 | for (idx = 0; idx < size; idx++) {
|
---|
1185 | if ((ret = smartreader_write_data(reader, &buff[idx], 1)) < 0){
|
---|
1186 | break;
|
---|
1187 | }
|
---|
1188 | struct timespec req_ts;
|
---|
1189 | req_ts.tv_sec = 0;
|
---|
1190 | req_ts.tv_nsec = udelay * 1000;
|
---|
1191 | nanosleep (&req_ts, NULL); //behaves better with signals than usleep
|
---|
1192 | }
|
---|
1193 | }
|
---|
1194 | sched_yield();
|
---|
1195 | return ret;
|
---|
1196 | }
|
---|
1197 |
|
---|
1198 | static void read_callback(struct libusb_transfer *transfer){
|
---|
1199 |
|
---|
1200 | struct s_reader *reader = (struct s_reader*)transfer->user_data;
|
---|
1201 | int copy_size;
|
---|
1202 | int ret;
|
---|
1203 |
|
---|
1204 | if(transfer->status == LIBUSB_TRANSFER_COMPLETED) {
|
---|
1205 |
|
---|
1206 | if(transfer->actual_length > 2) { //FTDI always sends modem status bytes as first 2 chars with the 232BM
|
---|
1207 |
|
---|
1208 | pthread_mutex_lock(&reader->g_read_mutex);
|
---|
1209 |
|
---|
1210 | if(reader->g_read_buffer_size == sizeof(reader->g_read_buffer)) {
|
---|
1211 | cs_log("IO:SR: buffer full\n");
|
---|
1212 | //if out read buffer is full then delay
|
---|
1213 | //slightly and go around again
|
---|
1214 | ret = libusb_submit_transfer(transfer);
|
---|
1215 | if(ret!=0)
|
---|
1216 | cs_log("IO:SR: submit async transfer failed with error %d\n",ret);
|
---|
1217 | pthread_mutex_unlock(&reader->g_read_mutex);
|
---|
1218 | return;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | reader->modem_status = transfer->buffer[1];
|
---|
1222 | copy_size = sizeof(reader->g_read_buffer) - reader->g_read_buffer_size > (unsigned int)transfer->actual_length-2 ? (unsigned int)transfer->actual_length-2: sizeof(reader->g_read_buffer) - reader->g_read_buffer_size;
|
---|
1223 | memcpy(reader->g_read_buffer+reader->g_read_buffer_size,transfer->buffer+2,copy_size);
|
---|
1224 | reader->g_read_buffer_size += copy_size;
|
---|
1225 | pthread_mutex_unlock(&reader->g_read_mutex);
|
---|
1226 | }
|
---|
1227 | else {
|
---|
1228 | if(transfer->actual_length==2) {
|
---|
1229 | pthread_mutex_lock(&reader->g_read_mutex);
|
---|
1230 | reader->modem_status=transfer->buffer[1];
|
---|
1231 | pthread_mutex_unlock(&reader->g_read_mutex);
|
---|
1232 | }
|
---|
1233 | }
|
---|
1234 |
|
---|
1235 | ret = libusb_submit_transfer(transfer);
|
---|
1236 | sched_yield();
|
---|
1237 |
|
---|
1238 | if(ret!=0)
|
---|
1239 | cs_log("IO:SR: submit async transfer failed with error %d\n",ret);
|
---|
1240 |
|
---|
1241 | }
|
---|
1242 | else
|
---|
1243 | cs_log("IO:SR: USB bulk read failed with error %d\n",transfer->status);
|
---|
1244 | }
|
---|
1245 |
|
---|
1246 |
|
---|
1247 | static void* ReaderThread(void *p)
|
---|
1248 | {
|
---|
1249 |
|
---|
1250 | struct libusb_transfer* usbt[NUM_TXFERS];
|
---|
1251 | unsigned char usb_buffers[NUM_TXFERS][64];
|
---|
1252 | struct s_reader *reader;
|
---|
1253 | int ret,idx;
|
---|
1254 |
|
---|
1255 | reader = (struct s_reader *)p;
|
---|
1256 | reader->sr_config.running=TRUE;
|
---|
1257 |
|
---|
1258 | for(idx=0; idx<NUM_TXFERS; idx++) {
|
---|
1259 | usbt[idx] = libusb_alloc_transfer(0);
|
---|
1260 |
|
---|
1261 | libusb_fill_bulk_transfer( usbt[idx],
|
---|
1262 | reader->sr_config.usb_dev_handle,
|
---|
1263 | reader->sr_config.out_ep,
|
---|
1264 | usb_buffers[idx],
|
---|
1265 | 64,
|
---|
1266 | &read_callback,
|
---|
1267 | p,
|
---|
1268 | 0 );
|
---|
1269 |
|
---|
1270 | ret = libusb_submit_transfer(usbt[idx]);
|
---|
1271 | }
|
---|
1272 |
|
---|
1273 | while(reader->sr_config.running) {
|
---|
1274 | ret = libusb_handle_events(NULL);
|
---|
1275 | if(ret!=0)
|
---|
1276 | cs_log("libusb_handle_events returned with %d\n",ret);
|
---|
1277 | }
|
---|
1278 |
|
---|
1279 | pthread_exit(NULL);
|
---|
1280 | }
|
---|
1281 |
|
---|
1282 | #endif // HAVE_LIBUSB && USE_PTHREAD
|
---|