295 lines
11 KiB
Coq
295 lines
11 KiB
Coq
|
/////////////////////////////////////////////////////////////////////
|
||
|
//// ////
|
||
|
//// USB function defines file ////
|
||
|
//// ////
|
||
|
//// ////
|
||
|
//// Author: Rudolf Usselmann ////
|
||
|
//// rudi@asics.ws ////
|
||
|
//// ////
|
||
|
//// ////
|
||
|
//// Downloaded from: http://www.opencores.org/cores/usb/ ////
|
||
|
//// ////
|
||
|
/////////////////////////////////////////////////////////////////////
|
||
|
//// ////
|
||
|
//// Copyright (C) 2000-2003 Rudolf Usselmann ////
|
||
|
//// www.asics.ws ////
|
||
|
//// rudi@asics.ws ////
|
||
|
//// ////
|
||
|
//// This source file may be used and distributed without ////
|
||
|
//// restriction provided that this copyright statement is not ////
|
||
|
//// removed from the file and that any derivative work contains ////
|
||
|
//// the original copyright notice and the associated disclaimer.////
|
||
|
//// ////
|
||
|
//// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ////
|
||
|
//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ////
|
||
|
//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ////
|
||
|
//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ////
|
||
|
//// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ////
|
||
|
//// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ////
|
||
|
//// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE ////
|
||
|
//// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ////
|
||
|
//// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ////
|
||
|
//// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ////
|
||
|
//// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT ////
|
||
|
//// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ////
|
||
|
//// POSSIBILITY OF SUCH DAMAGE. ////
|
||
|
//// ////
|
||
|
/////////////////////////////////////////////////////////////////////
|
||
|
|
||
|
// CVS Log
|
||
|
//
|
||
|
// $Id: usbf_defines.v,v 1.6 2003/10/17 02:36:57 rudi Exp $
|
||
|
//
|
||
|
// $Date: 2003/10/17 02:36:57 $
|
||
|
// $Revision: 1.6 $
|
||
|
// $Author: rudi $
|
||
|
// $Locker: $
|
||
|
// $State: Exp $
|
||
|
//
|
||
|
// Change History:
|
||
|
// $Log: usbf_defines.v,v $
|
||
|
// Revision 1.6 2003/10/17 02:36:57 rudi
|
||
|
// - Disabling bit stuffing and NRZI encoding during speed negotiation
|
||
|
// - Now the core can send zero size packets
|
||
|
// - Fixed register addresses for some of the higher endpoints
|
||
|
// (conversion between decimal/hex was wrong)
|
||
|
// - The core now does properly evaluate the function address to
|
||
|
// determine if the packet was intended for it.
|
||
|
// - Various other minor bugs and typos
|
||
|
//
|
||
|
// Revision 1.5 2001/11/04 12:22:43 rudi
|
||
|
//
|
||
|
// - Fixed previous fix (brocke something else ...)
|
||
|
// - Majore Synthesis cleanup
|
||
|
//
|
||
|
// Revision 1.4 2001/09/23 08:39:33 rudi
|
||
|
//
|
||
|
// Renamed DEBUG and VERBOSE_DEBUG to USBF_DEBUG and USBF_VERBOSE_DEBUG ...
|
||
|
//
|
||
|
// Revision 1.3 2001/09/13 13:14:02 rudi
|
||
|
//
|
||
|
// Fixed a problem that would sometimes prevent the core to come out of
|
||
|
// reset and immediately be operational ...
|
||
|
//
|
||
|
// Revision 1.2 2001/08/10 08:48:33 rudi
|
||
|
//
|
||
|
// - Changed IO names to be more clear.
|
||
|
// - Uniquifyed define names to be core specific.
|
||
|
//
|
||
|
// Revision 1.1 2001/08/03 05:30:09 rudi
|
||
|
//
|
||
|
//
|
||
|
// 1) Reorganized directory structure
|
||
|
//
|
||
|
// Revision 1.2 2001/03/31 13:00:52 rudi
|
||
|
//
|
||
|
// - Added Core configuration
|
||
|
// - Added handling of OUT packets less than MAX_PL_SZ in DMA mode
|
||
|
// - Modified WISHBONE interface and sync logic
|
||
|
// - Moved SSRAM outside the core (added interface)
|
||
|
// - Many small bug fixes ...
|
||
|
//
|
||
|
// Revision 1.0 2001/03/07 09:17:12 rudi
|
||
|
//
|
||
|
//
|
||
|
// Changed all revisions to revision 1.0. This is because OpenCores CVS
|
||
|
// interface could not handle the original '0.1' revision ....
|
||
|
//
|
||
|
// Revision 0.2 2001/03/07 09:08:13 rudi
|
||
|
//
|
||
|
// Added USB control signaling (Line Status) block. Fixed some minor
|
||
|
// typos, added resume bit and signal.
|
||
|
//
|
||
|
// Revision 0.1.0.1 2001/02/28 08:11:35 rudi
|
||
|
// Initial Release
|
||
|
//
|
||
|
//
|
||
|
|
||
|
`timescale 1ns / 10ps
|
||
|
|
||
|
// Uncomment the lines below to get various levels of debugging
|
||
|
// verbosity ...
|
||
|
`define USBF_DEBUG
|
||
|
//`define USBF_VERBOSE_DEBUG
|
||
|
|
||
|
// Uncomment the line below to run the test bench
|
||
|
// Comment it out to use your own address parameters ...
|
||
|
`define USBF_TEST_IMPL
|
||
|
|
||
|
// For each endpoint that should actually be instantiated,
|
||
|
// set the below define value to a one. Uncomment the define
|
||
|
// statement for unused endpoints. The endpoints should be
|
||
|
// sequential, e.q. 1,2,3. I have not tested what happens if
|
||
|
// you select endpoints in a non sequential manner e.g. 1,4,6
|
||
|
// Actual (logical) endpoint IDs are set by the software. There
|
||
|
// is no correlation between the physical endpoint number (below)
|
||
|
// and the actual (logical) endpoint number.
|
||
|
`ifdef USBF_TEST_IMPL
|
||
|
// Do not modify this section
|
||
|
// this is to run the test bench
|
||
|
`define USBF_HAVE_EP1 1
|
||
|
`define USBF_HAVE_EP2 1
|
||
|
`define USBF_HAVE_EP3 1
|
||
|
`else
|
||
|
// Modify this section to suit your implementation
|
||
|
`define USBF_HAVE_EP1 1
|
||
|
`define USBF_HAVE_EP2 1
|
||
|
`define USBF_HAVE_EP3 1
|
||
|
//`define USBF_HAVE_EP4 1
|
||
|
//`define USBF_HAVE_EP5 1
|
||
|
//`define USBF_HAVE_EP6 1
|
||
|
//`define USBF_HAVE_EP7 1
|
||
|
//`define USBF_HAVE_EP8 1
|
||
|
//`define USBF_HAVE_EP9 1
|
||
|
//`define USBF_HAVE_EP10 1
|
||
|
//`define USBF_HAVE_EP11 1
|
||
|
//`define USBF_HAVE_EP12 1
|
||
|
//`define USBF_HAVE_EP13 1
|
||
|
//`define USBF_HAVE_EP14 1
|
||
|
//`define USBF_HAVE_EP15 1
|
||
|
`endif
|
||
|
|
||
|
|
||
|
// Highest address line number that goes to the USB core
|
||
|
// Typically only A0 through A17 are needed, where A17
|
||
|
// selects between the internal buffer memory and the
|
||
|
// register file.
|
||
|
// Implementations may choose to have a more complex address
|
||
|
// decoding ....
|
||
|
|
||
|
`ifdef USBF_TEST_IMPL
|
||
|
// Do not modify this section
|
||
|
// this is to run the test bench
|
||
|
`define USBF_UFC_HADR 17
|
||
|
`define USBF_RF_SEL (!wb_addr_i[17])
|
||
|
`define USBF_MEM_SEL (wb_addr_i[17])
|
||
|
`define USBF_SSRAM_HADR 14
|
||
|
//`define USBF_ASYNC_RESET
|
||
|
|
||
|
`else
|
||
|
// Modify this section to suit your implementation
|
||
|
`define USBF_UFC_HADR 12
|
||
|
// Address Decoding for Register File select
|
||
|
`define USBF_RF_SEL (!wb_addr_i[12])
|
||
|
// Address Decoding for Buffer Memory select
|
||
|
`define USBF_MEM_SEL (wb_addr_i[12])
|
||
|
`define USBF_SSRAM_HADR 9
|
||
|
// The next statement determines if reset is async or sync.
|
||
|
// If the define is uncommented the reset will be ASYNC.
|
||
|
//`define USBF_ASYNC_RESET
|
||
|
`endif
|
||
|
|
||
|
|
||
|
/////////////////////////////////////////////////////////////////////
|
||
|
//
|
||
|
// Items below this point should NOT be modified by the end user
|
||
|
// UNLESS you know exactly what you are doing !
|
||
|
// Modify at you own risk !!!
|
||
|
//
|
||
|
/////////////////////////////////////////////////////////////////////
|
||
|
|
||
|
// PID Encodings
|
||
|
`define USBF_T_PID_OUT 4'b0001
|
||
|
`define USBF_T_PID_IN 4'b1001
|
||
|
`define USBF_T_PID_SOF 4'b0101
|
||
|
`define USBF_T_PID_SETUP 4'b1101
|
||
|
`define USBF_T_PID_DATA0 4'b0011
|
||
|
`define USBF_T_PID_DATA1 4'b1011
|
||
|
`define USBF_T_PID_DATA2 4'b0111
|
||
|
`define USBF_T_PID_MDATA 4'b1111
|
||
|
`define USBF_T_PID_ACK 4'b0010
|
||
|
`define USBF_T_PID_NACK 4'b1010
|
||
|
`define USBF_T_PID_STALL 4'b1110
|
||
|
`define USBF_T_PID_NYET 4'b0110
|
||
|
`define USBF_T_PID_PRE 4'b1100
|
||
|
`define USBF_T_PID_ERR 4'b1100
|
||
|
`define USBF_T_PID_SPLIT 4'b1000
|
||
|
`define USBF_T_PID_PING 4'b0100
|
||
|
`define USBF_T_PID_RES 4'b0000
|
||
|
|
||
|
// The HMS_DEL is a constant for the "Half Micro Second"
|
||
|
// Clock pulse generator. This constant specifies how many
|
||
|
// Phy clocks there are between two hms_clock pulses. This
|
||
|
// constant plus 2 represents the actual delay.
|
||
|
// Example: For a 60 Mhz (16.667 nS period) Phy Clock, the
|
||
|
// delay must be 30 phy clocks: 500ns / 16.667nS = 30 clocks
|
||
|
`define USBF_HMS_DEL 5'h1c
|
||
|
|
||
|
// After sending Data in response to an IN token from host, the
|
||
|
// host must reply with an ack. The host has 622nS in Full Speed
|
||
|
// mode and 400nS in High Speed mode to reply. RX_ACK_TO_VAL_FS
|
||
|
// and RX_ACK_TO_VAL_HS are the numbers of UTMI clock cycles
|
||
|
// minus 2 for Full and High Speed modes.
|
||
|
`define USBF_RX_ACK_TO_VAL_FS 8'd36
|
||
|
`define USBF_RX_ACK_TO_VAL_HS 8'd22
|
||
|
|
||
|
|
||
|
// After sending an OUT token the host must send a data packet.
|
||
|
// The host has 622nS in Full Speed mode and 400nS in High Speed
|
||
|
// mode to send the data packet.
|
||
|
// TX_DATA_TO_VAL_FS and TX_DATA_TO_VAL_HS are is the numbers of
|
||
|
// UTMI clock cycles minus 2.
|
||
|
`define USBF_TX_DATA_TO_VAL_FS 8'd36
|
||
|
`define USBF_TX_DATA_TO_VAL_HS 8'd22
|
||
|
|
||
|
|
||
|
// --------------------------------------------------
|
||
|
// USB Line state & Speed Negotiation Time Values
|
||
|
|
||
|
|
||
|
// Prescaler Clear value.
|
||
|
// The prescaler generates a 0.25uS pulse, from a nominal PHY clock of
|
||
|
// 60 Mhz. 250nS/16.667ns=15. The prescaler has to be cleared every 15
|
||
|
// cycles. Due to the pipeline, subtract 2 from 15, resulting in 13 cycles.
|
||
|
// !!! This is the only place that needs to be changed if a PHY with different
|
||
|
// !!! clock output is used.
|
||
|
`define USBF_T1_PS_250_NS 4'd13
|
||
|
|
||
|
// uS counter representation of 2.5uS (2.5/0.25=10)
|
||
|
`define USBF_T1_C_2_5_US 8'd10
|
||
|
|
||
|
// uS counter clear value
|
||
|
// The uS counter counts the time in 0.25uS intervals. It also generates
|
||
|
// a count enable to the mS counter, every 62.5 uS.
|
||
|
// The clear value is 62.5uS/0.25uS=250 cycles.
|
||
|
`define USBF_T1_C_62_5_US 8'd250
|
||
|
|
||
|
// mS counter representation of 3.0mS (3.0/0.0625=48)
|
||
|
`define USBF_T1_C_3_0_MS 8'd48
|
||
|
|
||
|
// mS counter representation of 3.125mS (3.125/0.0625=50)
|
||
|
`define USBF_T1_C_3_125_MS 8'd50
|
||
|
|
||
|
// mS counter representation of 5mS (5/0.0625=80)
|
||
|
`define USBF_T1_C_5_MS 8'd80
|
||
|
|
||
|
// Multi purpose Counter Prescaler, generate 2.5 uS period
|
||
|
// 2500/16.667ns=150 (minus 2 for pipeline)
|
||
|
`define USBF_T2_C_2_5_US 8'd148
|
||
|
|
||
|
// Generate 0.5mS period from the 2.5 uS clock
|
||
|
// 500/2.5 = 200
|
||
|
`define USBF_T2_C_0_5_MS 8'd200
|
||
|
|
||
|
// Indicate when internal wakeup has completed
|
||
|
// me_cnt counts 0.5 mS intervals. E.g.: 5.0mS are (5/0.5) 10 ticks
|
||
|
// Must be 0 =< 10 mS
|
||
|
`define USBF_T2_C_WAKEUP 8'd10
|
||
|
|
||
|
// Indicate when 100uS have passed
|
||
|
// me_ps2 counts 2.5uS intervals. 100uS are (100/2.5) 40 ticks
|
||
|
`define USBF_T2_C_100_US 8'd40
|
||
|
|
||
|
// Indicate when 1.0 mS have passed
|
||
|
// me_cnt counts 0.5 mS intervals. 1.0mS are (1/0.5) 2 ticks
|
||
|
`define USBF_T2_C_1_0_MS 8'd2
|
||
|
|
||
|
// Indicate when 1.2 mS have passed
|
||
|
// me_cnt counts 0.5 mS intervals. 1.2mS are (1.2/0.5) 2 ticks
|
||
|
`define USBF_T2_C_1_2_MS 8'd2
|
||
|
|
||
|
// Indicate when 100 mS have passed
|
||
|
// me_cnt counts 0.5 mS intervals. 100mS are (100/0.5) 200 ticks
|
||
|
`define USBF_T2_C_100_MS 8'd200
|
||
|
|