X-Git-Url: http://developer.intra2net.com/git/?p=libftdi;a=blobdiff_plain;f=src%2Fftdi.c;h=6d4a64b4144f0218c188051e2c06d4f663c45813;hp=1f45e95cd481c9965b8801e1e768eef4449663e7;hb=68e78641352b9ae737f15bd55d93b11739fd333b;hpb=2d790e377ad5f1c61b38436aa3d5a201c9184028 diff --git a/src/ftdi.c b/src/ftdi.c index 1f45e95..6d4a64b 100644 --- a/src/ftdi.c +++ b/src/ftdi.c @@ -2,7 +2,7 @@ ftdi.c - description ------------------- begin : Fri Apr 4 2003 - copyright : (C) 2003-2011 by Intra2net AG and the libftdi developers + copyright : (C) 2003-2013 by Intra2net AG and the libftdi developers email : opensource@intra2net.com ***************************************************************************/ @@ -39,7 +39,10 @@ #include "ftdi_version_i.h" #define ftdi_error_return(code, str) do { \ - ftdi->error_str = str; \ + if ( ftdi ) \ + ftdi->error_str = str; \ + else \ + fprintf(stderr, str); \ return code; \ } while(0); @@ -149,12 +152,23 @@ struct ftdi_context *ftdi_new(void) \retval 0: all fine \retval -1: unknown interface \retval -2: USB device unavailable + \retval -3: Device already open, interface can't be set in that state */ int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface) { if (ftdi == NULL) ftdi_error_return(-2, "USB device unavailable"); + if (ftdi->usb_dev != NULL) + { + int check_interface = interface; + if (check_interface == INTERFACE_ANY) + check_interface = INTERFACE_A; + + if (ftdi->index != check_interface) + ftdi_error_return(-3, "Interface can not be changed on an already open device"); + } + switch (interface) { case INTERFACE_ANY: @@ -2358,7 +2372,6 @@ int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer, strcpy(eeprom->serial, serial); } - if (ftdi->type == TYPE_R) { eeprom->max_power = 90; @@ -2379,7 +2392,32 @@ int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer, } eeprom->size = -1; } - eeprom->initialized_for_connected_device = 1; + switch (ftdi->type) + { + case TYPE_AM: + eeprom->release_number = 0x0200; + break; + case TYPE_BM: + eeprom->release_number = 0x0400; + break; + case TYPE_2232C: + eeprom->release_number = 0x0500; + break; + case TYPE_R: + eeprom->release_number = 0x0600; + break; + case TYPE_2232H: + eeprom->release_number = 0x0700; + break; + case TYPE_4232H: + eeprom->release_number = 0x0800; + break; + case TYPE_232H: + eeprom->release_number = 0x0900; + break; + default: + eeprom->release_number = 0x00; + } return 0; } /*FTD2XX doesn't check for values not fitting in the ACBUS Signal oprtions*/ @@ -2396,9 +2434,9 @@ void set_ft232h_cbus(struct ftdi_eeprom *eeprom, unsigned char * output) if (eeprom->cbus_function[2*i+1]> CBUSH_CLK7_5) mode_high = CBUSH_TRISTATE; else - mode_high = eeprom->cbus_function[2*i]; + mode_high = eeprom->cbus_function[2*i+1]; - output[0x18+i] = mode_high <<4 | mode_low; + output[0x18+i] = (mode_high <<4) | mode_low; } } /* Return the bits for the encoded EEPROM Structure of a requested Mode @@ -2526,33 +2564,8 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) output[0x05] = eeprom->product_id >> 8; // Addr 06: Device release number (0400h for BM features) - output[0x06] = 0x00; - switch (ftdi->type) - { - case TYPE_AM: - output[0x07] = 0x02; - break; - case TYPE_BM: - output[0x07] = 0x04; - break; - case TYPE_2232C: - output[0x07] = 0x05; - break; - case TYPE_R: - output[0x07] = 0x06; - break; - case TYPE_2232H: - output[0x07] = 0x07; - break; - case TYPE_4232H: - output[0x07] = 0x08; - break; - case TYPE_232H: - output[0x07] = 0x09; - break; - default: - output[0x07] = 0x00; - } + output[0x06] = eeprom->release_number; + output[0x07] = eeprom->release_number >> 8; // Addr 08: Config descriptor // Bit 7: always 1 @@ -2560,14 +2573,14 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) // Bit 5: 1 if this device uses remote wakeup // Bit 4-0: reserved - 0 j = 0x80; - if (eeprom->self_powered == 1) + if (eeprom->self_powered) j |= 0x40; - if (eeprom->remote_wakeup == 1) + if (eeprom->remote_wakeup) j |= 0x20; output[0x08] = j; // Addr 09: Max power consumption: max power = value * 2 mA - output[0x09] = eeprom->max_power>>1; + output[0x09] = eeprom->max_power / MAX_POWER_MILLIAMP_PER_UNIT; if (ftdi->type != TYPE_AM) { @@ -2582,9 +2595,9 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) // Bit 0: 1 - In EndPoint is Isochronous // j = 0; - if (eeprom->in_is_isochronous == 1) + if (eeprom->in_is_isochronous) j = j | 1; - if (eeprom->out_is_isochronous == 1) + if (eeprom->out_is_isochronous) j = j | 2; output[0x0A] = j; } @@ -2708,15 +2721,15 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) else output[0x01] &= ~HIGH_CURRENT_DRIVE; - if (eeprom->in_is_isochronous == 1) + if (eeprom->in_is_isochronous) output[0x0A] |= 0x1; else output[0x0A] &= ~0x1; - if (eeprom->out_is_isochronous == 1) + if (eeprom->out_is_isochronous) output[0x0A] |= 0x2; else output[0x0A] &= ~0x2; - if (eeprom->suspend_pull_downs == 1) + if (eeprom->suspend_pull_downs) output[0x0A] |= 0x4; else output[0x0A] &= ~0x4; @@ -2734,7 +2747,7 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) output[0x00] |= HIGH_CURRENT_DRIVE_R; output[0x01] = 0x40; /* Hard coded Endpoint Size*/ - if (eeprom->suspend_pull_downs == 1) + if (eeprom->suspend_pull_downs) output[0x0A] |= 0x4; else output[0x0A] &= ~0x4; @@ -2784,7 +2797,7 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) else output[0x01] &= ~SUSPEND_DBUS7_BIT; - if (eeprom->suspend_pull_downs == 1) + if (eeprom->suspend_pull_downs) output[0x0A] |= 0x4; else output[0x0A] &= ~0x4; @@ -2829,8 +2842,83 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) break; case TYPE_4232H: + if (eeprom->channel_a_driver == DRIVER_VCP) + output[0x00] |= DRIVER_VCP; + else + output[0x00] &= ~DRIVER_VCP; + if (eeprom->channel_b_driver == DRIVER_VCP) + output[0x01] |= DRIVER_VCP; + else + output[0x01] &= ~DRIVER_VCP; + if (eeprom->channel_c_driver == DRIVER_VCP) + output[0x00] |= (DRIVER_VCP << 4); + else + output[0x00] &= ~(DRIVER_VCP << 4); + if (eeprom->channel_d_driver == DRIVER_VCP) + output[0x01] |= (DRIVER_VCP << 4); + else + output[0x01] &= ~(DRIVER_VCP << 4); + + if (eeprom->suspend_pull_downs) + output[0x0a] |= 0x4; + else + output[0x0a] &= ~0x4; + + if (eeprom->channel_a_rs485enable) + output[0x0b] |= CHANNEL_IS_RS485 << 0; + else + output[0x0b] &= ~(CHANNEL_IS_RS485 << 0); + if (eeprom->channel_b_rs485enable) + output[0x0b] |= CHANNEL_IS_RS485 << 1; + else + output[0x0b] &= ~(CHANNEL_IS_RS485 << 1); + if (eeprom->channel_c_rs485enable) + output[0x0b] |= CHANNEL_IS_RS485 << 2; + else + output[0x0b] &= ~(CHANNEL_IS_RS485 << 2); + if (eeprom->channel_d_rs485enable) + output[0x0b] |= CHANNEL_IS_RS485 << 3; + else + output[0x0b] &= ~(CHANNEL_IS_RS485 << 3); + + if (eeprom->group0_drive > DRIVE_16MA) + output[0x0c] |= DRIVE_16MA; + else + output[0x0c] |= eeprom->group0_drive; + if (eeprom->group0_schmitt == IS_SCHMITT) + output[0x0c] |= IS_SCHMITT; + if (eeprom->group0_slew == SLOW_SLEW) + output[0x0c] |= SLOW_SLEW; + + if (eeprom->group1_drive > DRIVE_16MA) + output[0x0c] |= DRIVE_16MA<<4; + else + output[0x0c] |= eeprom->group1_drive<<4; + if (eeprom->group1_schmitt == IS_SCHMITT) + output[0x0c] |= IS_SCHMITT<<4; + if (eeprom->group1_slew == SLOW_SLEW) + output[0x0c] |= SLOW_SLEW<<4; + + if (eeprom->group2_drive > DRIVE_16MA) + output[0x0d] |= DRIVE_16MA; + else + output[0x0d] |= eeprom->group2_drive; + if (eeprom->group2_schmitt == IS_SCHMITT) + output[0x0d] |= IS_SCHMITT; + if (eeprom->group2_slew == SLOW_SLEW) + output[0x0d] |= SLOW_SLEW; + + if (eeprom->group3_drive > DRIVE_16MA) + output[0x0d] |= DRIVE_16MA<<4; + else + output[0x0d] |= eeprom->group3_drive<<4; + if (eeprom->group3_schmitt == IS_SCHMITT) + output[0x0d] |= IS_SCHMITT<<4; + if (eeprom->group3_slew == SLOW_SLEW) + output[0x0d] |= SLOW_SLEW<<4; + output[0x18] = eeprom->chip; - fprintf(stderr,"FIXME: Build FT4232H specific EEPROM settings\n"); + break; case TYPE_232H: output[0x00] = type2bit(eeprom->channel_a_type, TYPE_232H); @@ -2895,6 +2983,7 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi) output[eeprom->size-2] = checksum; output[eeprom->size-1] = checksum >> 8; + eeprom->initialized_for_connected_device = 1; return user_area_size; } /* Decode the encoded EEPROM field for the FTDI Mode into a value for the abstracted @@ -2937,7 +3026,6 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) int eeprom_size; struct ftdi_eeprom *eeprom; unsigned char *buf = ftdi->eeprom->buf; - int release; if (ftdi == NULL) ftdi_error_return(-1,"No context"); @@ -2953,7 +3041,8 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) // Addr 04: Product ID eeprom->product_id = buf[0x04] + (buf[0x05] << 8); - release = buf[0x06] + (buf[0x07]<<8); + // Addr 06: Device release number + eeprom->release_number = buf[0x06] + (buf[0x07]<<8); // Addr 08: Config descriptor // Bit 7: always 1 @@ -2963,7 +3052,7 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) eeprom->remote_wakeup = buf[0x08] & 0x20; // Addr 09: Max power consumption: max power = value * 2 mA - eeprom->max_power = buf[0x09]; + eeprom->max_power = MAX_POWER_MILLIAMP_PER_UNIT * buf[0x09]; // Addr 0A: Chip configuration // Bit 7: 0 - reserved @@ -3086,7 +3175,7 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) else if (ftdi->type == TYPE_R) { /* TYPE_R flags D2XX, not VCP as all others*/ - eeprom->channel_a_driver = (~buf[0x00]) & DRIVER_VCP; + eeprom->channel_a_driver = ~buf[0x00] & DRIVER_VCP; eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R; if ( (buf[0x01]&0x40) != 0x40) fprintf(stderr, @@ -3108,15 +3197,26 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f; eeprom->cbus_function[4] = buf[0x16] & 0x0f; } - else if ((ftdi->type == TYPE_2232H) ||(ftdi->type == TYPE_4232H)) + else if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) { - eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP; - eeprom->channel_b_type = bit2type(buf[0x01] & 0x7); eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP; if (ftdi->type == TYPE_2232H) + { + eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); + eeprom->channel_b_type = bit2type(buf[0x01] & 0x7); eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT; + } + else + { + eeprom->channel_c_driver = (buf[0x00] >> 4) & DRIVER_VCP; + eeprom->channel_d_driver = (buf[0x01] >> 4) & DRIVER_VCP; + eeprom->channel_a_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 0); + eeprom->channel_b_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 1); + eeprom->channel_c_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 2); + eeprom->channel_d_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 3); + } eeprom->chip = buf[0x18]; eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; @@ -3163,12 +3263,12 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) char *channel_mode[] = {"UART", "FIFO", "CPU", "OPTO", "FT1284"}; fprintf(stdout, "VID: 0x%04x\n",eeprom->vendor_id); fprintf(stdout, "PID: 0x%04x\n",eeprom->product_id); - fprintf(stdout, "Release: 0x%04x\n",release); + fprintf(stdout, "Release: 0x%04x\n",eeprom->release_number); if (eeprom->self_powered) fprintf(stdout, "Self-Powered%s", (eeprom->remote_wakeup)?", USB Remote Wake Up\n":"\n"); else - fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power * 2, + fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power, (eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n"); if (eeprom->manufacturer) fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer); @@ -3258,7 +3358,6 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) fprintf(stdout,"C%d Function: %s\n", i, cbush_mux[eeprom->cbus_function[i]]); } - } if (ftdi->type == TYPE_R) @@ -3319,6 +3418,9 @@ int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value valu case PRODUCT_ID: *value = ftdi->eeprom->product_id; break; + case RELEASE_NUMBER: + *value = ftdi->eeprom->release_number; + break; case SELF_POWERED: *value = ftdi->eeprom->self_powered; break; @@ -3364,6 +3466,24 @@ int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value valu case CHANNEL_B_DRIVER: *value = ftdi->eeprom->channel_b_driver; break; + case CHANNEL_C_DRIVER: + *value = ftdi->eeprom->channel_c_driver; + break; + case CHANNEL_D_DRIVER: + *value = ftdi->eeprom->channel_d_driver; + break; + case CHANNEL_A_RS485: + *value = ftdi->eeprom->channel_a_rs485enable; + break; + case CHANNEL_B_RS485: + *value = ftdi->eeprom->channel_b_rs485enable; + break; + case CHANNEL_C_RS485: + *value = ftdi->eeprom->channel_c_rs485enable; + break; + case CHANNEL_D_RS485: + *value = ftdi->eeprom->channel_d_rs485enable; + break; case CBUS_FUNCTION_0: *value = ftdi->eeprom->cbus_function[0]; break; @@ -3488,6 +3608,9 @@ int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value valu case PRODUCT_ID: ftdi->eeprom->product_id = value; break; + case RELEASE_NUMBER: + ftdi->eeprom->release_number = value; + break; case SELF_POWERED: ftdi->eeprom->self_powered = value; break; @@ -3533,6 +3656,24 @@ int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value valu case CHANNEL_B_DRIVER: ftdi->eeprom->channel_b_driver = value; break; + case CHANNEL_C_DRIVER: + ftdi->eeprom->channel_c_driver = value; + break; + case CHANNEL_D_DRIVER: + ftdi->eeprom->channel_d_driver = value; + break; + case CHANNEL_A_RS485: + ftdi->eeprom->channel_a_rs485enable = value; + break; + case CHANNEL_B_RS485: + ftdi->eeprom->channel_b_rs485enable = value; + break; + case CHANNEL_C_RS485: + ftdi->eeprom->channel_c_rs485enable = value; + break; + case CHANNEL_D_RS485: + ftdi->eeprom->channel_d_rs485enable = value; + break; case CBUS_FUNCTION_0: ftdi->eeprom->cbus_function[0] = value; break; @@ -3631,6 +3772,7 @@ int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value valu default : ftdi_error_return(-1, "Request to unknown EEPROM value"); } + eeprom->initialized_for_connected_device = 0; return 0; }