1 | /* ----------------------------------------------------------------------------
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2 | * SAM Software Package License
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3 | * ----------------------------------------------------------------------------
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4 | * Copyright (c) 2011-2012, Atmel Corporation
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5 | *
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6 | * All rights reserved.
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7 | *
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8 | * Redistribution and use in source and binary forms, with or without
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9 | * modification, are permitted provided that the following condition is met:
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10 | *
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11 | * - Redistributions of source code must retain the above copyright notice,
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12 | * this list of conditions and the disclaimer below.
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13 | *
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14 | * Atmel's name may not be used to endorse or promote products derived from
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15 | * this software without specific prior written permission.
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16 | *
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17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | * ----------------------------------------------------------------------------
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28 | */
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29 |
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30 | #ifndef SAMD21_DEVICE_H_INCLUDED
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31 | #define SAMD21_DEVICE_H_INCLUDED
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32 |
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33 | #ifdef __cplusplus
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34 | extern "C" {
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35 | #endif
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36 |
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37 | #define EP0 0
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38 | #define EPX_SIZE 64// 64 for Full Speed, EPT size max is 1024
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39 |
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40 | // Force device low speed mode
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41 | #define udd_force_low_speed() USB->DEVICE.CTRLB.reg &= ~USB_DEVICE_CTRLB_SPDCONF_Msk; USB->DEVICE.CTRLB.reg |= USB_DEVICE_CTRLB_SPDCONF_1_Val
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42 | // Force full speed mode
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43 | #define udd_force_full_speed() USB->DEVICE.CTRLB.reg &= ~USB_DEVICE_CTRLB_SPDCONF_Msk
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44 |
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45 | // Attaches to USB bus
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46 | #define udd_attach_device() USB->DEVICE.CTRLB.reg &= ~USB_DEVICE_CTRLB_DETACH
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47 | #define udd_detach_device() USB->DEVICE.CTRLB.reg |= USB_DEVICE_CTRLB_DETACH
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48 |
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49 | // Manage reset event
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50 | // Set when a USB "End of Reset" has been detected
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51 | #define udd_enable_reset_interrupt() USB->DEVICE.INTENSET.reg = USB_DEVICE_INTENSET_EORST
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52 | #define udd_ack_reset() USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_EORST
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53 | #define Is_udd_reset() (USB->DEVICE.INTFLAG.reg & USB_DEVICE_INTFLAG_EORST)
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54 |
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55 | // Manage start of frame (SOF) event
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56 | #define udd_enable_sof_interrupt() USB->DEVICE.INTENSET.reg = USB_DEVICE_INTENSET_SOF
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57 | #define udd_ack_sof() USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_SOF
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58 | #define Is_udd_sof() (USB->DEVICE.INTENSET.reg & USB_DEVICE_INTENSET_SOF)
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59 | #define udd_frame_number() ((USB->DEVICE.FNUM.reg & USB_DEVICE_FNUM_FNUM_Msk) >> USB_DEVICE_FNUM_FNUM_Pos)
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60 |
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61 | // configures the USB device address and enable it.
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62 | #define udd_configure_address(address) USB->DEVICE.DADD.reg = USB_DEVICE_DADD_ADDEN | address
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63 |
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64 | // Enables SETUP received interrupt
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65 | #define udd_enable_setup_received_interrupt(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTENSET.reg = USB_DEVICE_EPINTFLAG_RXSTP
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66 | // ACKs OUT received
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67 | #define udd_ack_out_received(ep) USB->DEVICE.DeviceEndpoint[ep].EPSTATUSCLR.reg = USB_DEVICE_EPSTATUSCLR_BK0RDY
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68 | // ACKs OUT received
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69 | #define udd_ack_in_received(ep) USB->DEVICE.DeviceEndpoint[ep].EPSTATUSCLR.reg = USB_DEVICE_EPSTATUSCLR_BK1RDY
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70 | // Is transfert completed ?
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71 | #define udd_is_transf_cplt(ep) (USB->DEVICE.DeviceEndpoint[ep].EPINTFLAG.reg & USB_DEVICE_EPINTFLAG_TRCPT1)
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72 | // Clear the transfer complete flag
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73 | #define udd_clear_transf_cplt(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTFLAG.bit.TRCPT1 = 1
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74 | // Set the bank as ready
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75 | #define udd_bk_rdy(ep) USB->DEVICE.DeviceEndpoint[ep].EPSTATUSSET.bit.BK1RDY = 1
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76 | #define udd_read_endpoint_flag(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTFLAG.reg
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77 | // Enable interrupt transfer complete
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78 | #define udd_ept_enable_it_transf_cplt_in(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTENSET.reg = USB_DEVICE_EPINTENSET_TRCPT1
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79 | #define udd_ept_enable_it_transf_cplt_out(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTENSET.reg = USB_DEVICE_EPINTENSET_TRCPT0
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80 | // Clear the stall flag
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81 | #define udd_clear_stall_request(ep) USB->DEVICE.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_STALL1
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82 | // Remove stall
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83 | #define udd_remove_stall_request(ep) USB->DEVICE.DeviceEndpoint[ep].EPSTATUSCLR.reg = USB_DEVICE_EPSTATUSCLR_STALLRQ1
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84 |
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85 | // Endpoint Interrupt Summary
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86 | #define udd_endpoint_interrupt() USB->DEVICE.EPINTSMRY.reg
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87 |
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88 | #define udd_clear_wakeup_interrupt() USB->DEVICE.INTENCLR.reg = USB_DEVICE_INTENCLR_WAKEUP
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89 | #define udd_clear_eorsm_interrupt() USB->DEVICE.INTENCLR.reg = USB_DEVICE_INTENCLR_EORSM
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90 | #define udd_clear_suspend_interrupt() USB->DEVICE.INTENCLR.reg = USB_DEVICE_INTENCLR_SUSPEND
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91 |
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92 |
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93 |
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94 | // Force device mode
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95 | #define udd_force_device_mode() USB->DEVICE.CTRLA.reg &= ~USB_CTRLA_MODE
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96 | // Run in Standby
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97 | #define udd_device_run_in_standby() USB->DEVICE.CTRLA.reg |= USB_CTRLA_RUNSTDBY
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98 | // Force host mode
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99 | #define udd_force_host_mode() USB->DEVICE.CTRLA.reg |= USB_CTRLA_MODE
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100 |
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101 |
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102 | // Enable USB macro
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103 | #define udd_enable() USB->DEVICE.CTRLA.reg |= USB_CTRLA_ENABLE
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104 | // Disable USB macro
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105 | #define udd_disable() USB->DEVICE.CTRLA.reg &= ~USB_CTRLA_ENABLE
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106 |
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107 | #ifdef __cplusplus
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108 | }
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109 | #endif
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110 |
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111 | #endif /* SAMD21_DEVICE_H_INCLUDED */
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112 |
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