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alfoltran |
/////////////////////////////////////////////////////////////////////
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//// ////
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//// USB Control Endpoint (Endpoint Zero) ////
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//// Internal Setup Engine ////
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//// ////
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//// SystemC Version: usb_ep0.cpp ////
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//// Author: Alfredo Luiz Foltran Fialho ////
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//// alfoltran@ig.com.br ////
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//// ////
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//// ////
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/////////////////////////////////////////////////////////////////////
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//// ////
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//// Verilog Version: usb1_ctrl.v ////
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//// Copyright (C) 2000-2002 Rudolf Usselmann ////
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//// www.asics.ws ////
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//// rudi@asics.ws ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer.////
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//// ////
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//// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ////
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//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ////
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//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ////
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//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ////
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//// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ////
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//// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ////
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//// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE ////
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//// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ////
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//// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ////
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//// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ////
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//// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT ////
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//// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ////
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//// POSSIBILITY OF SUCH DAMAGE. ////
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//// ////
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/////////////////////////////////////////////////////////////////////
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#include "systemc.h"
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#include "usb_ep0.h"
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void usb_ep0::ep0_re_up(void) {
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ep0_re.write(fifo_re1.read());
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}
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void usb_ep0::fifo_empty_up(void) {
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fifo_empty.write(ep0_stat.read()[1]);
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}
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void usb_ep0::fifo_full_up(void) {
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fifo_full.write(ep0_stat.read()[2]);
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}
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// For this implementation we do not implement HALT for the
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// device nor for any of the endpoints. This is useless for
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// this device, but can be added here later ...
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// FYI, we report device/endpoint errors via interrupts,
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// instead of halting the entire or part of the device, much
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// nicer for non-critical errors
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void usb_ep0::clr_halt_up(void) {
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clr_halt.write(ctrl_setup.read());
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}
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void usb_ep0::addressed_up(void) {
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if (!rst.read())
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addressed.write(false);
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else if (set_address.read())
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addressed.write(true);
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}
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void usb_ep0::configured_up(void) {
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if (!rst.read())
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configured.write(false);
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else if (set_config.read())
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configured.write(true);
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}
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void usb_ep0::halt_up(void) {
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if (!rst.read())
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halt.write(false);
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else if (clr_halt.read())
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halt.write(false);
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else if (set_halt.read())
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halt.write(true);
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}
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void usb_ep0::rom_adr_up1(void) {
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sc_uint<4> sel1, sel2;
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sel1 = wValue.read().range(11, 8);
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sel2 = wValue.read().range(3, 0);
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switch (sel1) {// synopsys full_case parallel_case
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case 1: rom_start_d.write(ROM_START0); break;
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case 2: rom_start_d.write(ROM_START1); break;
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case 3: switch (sel2) {// synopsys full_case parallel_case
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case 0: rom_start_d.write(ROM_START2A); break;
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case 1: rom_start_d.write(ROM_START2B); break;
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case 2: rom_start_d.write(ROM_START2C); break;
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case 3: rom_start_d.write(ROM_START2D); break;
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default:rom_start_d.write(ROM_START2A); break;
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}
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break;
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default:rom_start_d.write(0); break;
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}
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}
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void usb_ep0::rom_adr_up2(void) {
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if (!rst.read())
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rom_adr.write(0);
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else if (rom_sel.read() && !rom_sel_r.read())
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rom_adr.write(rom_start_d.read());
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else if (rom_sel.read() && !fifo_full.read())
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rom_adr.write(rom_adr.read() + 1);
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}
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void usb_ep0::rom_size_up1(void) {
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sc_uint<4> sel1, sel2;
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sel1 = wValue.read().range(11, 8);
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sel2 = wValue.read().range(3, 0);
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switch (sel1) {// synopsys full_case parallel_case
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case 1: rom_size_dd.write(ROM_SIZE0); break;
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case 2: rom_size_dd.write(ROM_SIZE1); break;
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case 3: switch (sel2) {// synopsys full_case parallel_case
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case 0: rom_size_dd.write(ROM_SIZE2A); break;
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case 1: rom_size_dd.write(ROM_SIZE2B); break;
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case 2: rom_size_dd.write(ROM_SIZE2C); break;
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case 3: rom_size_dd.write(ROM_SIZE2D); break;
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default:rom_size_dd.write(ROM_SIZE2A); break;
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}
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break;
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default:rom_size_dd.write(1); break;
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}
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}
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void usb_ep0::rom_size_up2(void) {
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rom_size_d.write(((rom_size_dd.read() > wLength.read().range(6, 0)) ?
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wLength.read().range(6, 0) : rom_size_dd.read()));
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}
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void usb_ep0::rom_size_up3(void) {
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if (!rst.read())
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rom_size.write(0);
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else if (rom_sel.read() && !rom_sel_r.read())
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rom_size.write(rom_size_d.read());
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else if (rom_sel.read() && !fifo_full.read())
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rom_size.write(rom_size.read() - 1);
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}
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void usb_ep0::rom_sel_up(void) {
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rom_sel_r.write(rom_sel.read());
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}
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void usb_ep0::fifo_we_rom_up1(void) {
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fifo_we_rom_r.write(rom_sel.read());
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}
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void usb_ep0::fifo_we_rom_up2(void) {
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fifo_we_rom_r2.write(fifo_we_rom_r.read());
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}
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void usb_ep0::fifo_we_rom_up3(void) {
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fifo_we_rom.write(rom_sel.read() && fifo_we_rom_r2.read());
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}
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void usb_ep0::rom_done_up(void) {
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rom_done.write((rom_size.read() == 0) && !(rom_sel.read() && !rom_sel_r.read()));
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}
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void usb_ep0::fifo_re_up(void) {
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fifo_re1.write(get_hdr.read() && !fifo_empty.read());
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}
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void usb_ep0::adv_up(void) {
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adv.write(get_hdr.read() && !fifo_empty.read() && !adv.read());
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}
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void usb_ep0::le_up(void) {
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if (!rst.read())
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le.write(0);
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else if (!get_hdr.read())
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le.write(0);
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#ifdef USB_SIMULATION
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else if (!le.read().or_reduce())
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#else
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else if (!(le.read()[7] || le.read()[6] || le.read()[5] || le.read()[4] ||
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le.read()[3] || le.read()[2] || le.read()[1] || le.read()[0]))
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#endif
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le.write(1);
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else if (adv.read())
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le.write(((sc_uint<7>)le.read().range(6, 0), (sc_uint<1>)0));
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}
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void usb_ep0::hdr_deco0(void) {
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if (le.read()[0])
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hdr0.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco1(void) {
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if (le.read()[1])
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hdr1.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco2(void) {
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if (le.read()[2])
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hdr2.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco3(void) {
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if (le.read()[3])
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hdr3.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco4(void) {
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if (le.read()[4])
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hdr4.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco5(void) {
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if (le.read()[5])
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hdr5.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco6(void) {
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if (le.read()[6])
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hdr6.write(ep0_din.read());
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}
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void usb_ep0::hdr_deco7(void) {
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if (le.read()[7])
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hdr7.write(ep0_din.read());
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}
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void usb_ep0::hdr_done_up(void) {
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hdr_done.write(le.read()[7] && adv.read());
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}
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void usb_ep0::high_sel_up(void) {
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high_sel.write(write_done_r.read());
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}
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void usb_ep0::ep0_dout_up(void) {
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switch (data_sel.read()) {// synopsys full_case parallel_case
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case ZERO_DATA: ep0_dout.write(((rom_sel.read()) ? rom_data.read() : (sc_uint<8>)0)); break;
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case ZERO_ONE_DATA: ep0_dout.write(((high_sel.read()) ? (sc_uint<8>)1 : (sc_uint<8>)0)); break;
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case CONFIG_DATA: ep0_dout.write(((sc_uint<7>)0, (sc_uint<1>)configured.read())); break; // Is configured?
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case SYNC_FRAME_DATA: ep0_dout.write((high_sel.read()) ?
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((sc_uint<5>)0, (sc_uint<3>)frame_no.read().range(10, 8)) :
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frame_no.read().range(7, 0)); break;
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case VEND_DATA: ep0_dout.write(((high_sel.read()) ?
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vendor_data.read().range(15, 8) :
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vendor_data.read().range(7, 0))); break;
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}
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}
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| 257 |
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void usb_ep0::ep0_we_up(void) {
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ep0_we.write(fifo_we_d.read() || fifo_we_rom.read());
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}
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void usb_ep0::ep0_size_up(void) {
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if (in_size_0.read())
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ep0_size.write(0);
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else if (in_size_1.read())
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ep0_size.write(1);
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else if (in_size_2.read())
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ep0_size.write(2);
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else if (rom_sel.read())
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ep0_size.write(((sc_uint<1>)0, (sc_uint<7>)rom_size_d.read()));
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| 271 |
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}
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| 272 |
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| 273 |
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void usb_ep0::write_done_up1(void) {
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write_done_r.write(in_size_2.read() && !fifo_full.read() && fifo_we_d.read() &&
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| 275 |
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!write_done_r.read() && !write_done.read());
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| 276 |
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}
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| 277 |
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| 278 |
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void usb_ep0::write_done_up2(void) {
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| 279 |
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write_done.write(in_size_2.read() && !fifo_full.read() && fifo_we_d.read() &&
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| 280 |
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write_done_r.read() && !write_done.read());
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| 281 |
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}
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| 282 |
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| 283 |
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void usb_ep0::bmReqType_up(void) {
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| 284 |
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bmReqType.write(hdr0.read());
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| 285 |
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}
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| 286 |
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| 287 |
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void usb_ep0::bmReqType_Decoder(void) {
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| 288 |
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bm_req_dir.write(bmReqType.read()[7]); // 0: Host to device; 1: Device to host
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bm_req_type.write(bmReqType.read().range(6, 5)); // 0: Standard; 1: Class; 2: Vendor; 3: RESERVED
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bm_req_recp.write(bmReqType.read().range(4, 0)); // 0: Device; 1: Interface; 2: Endpoint; 3: Other
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// 4..31: RESERVED
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}
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| 293 |
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void usb_ep0::bRequest_up(void) {
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| 295 |
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bRequest.write(hdr1.read());
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| 296 |
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}
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| 297 |
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| 298 |
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void usb_ep0::wValue_up(void) {
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| 299 |
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wValue.write(((sc_uint<8>)hdr3.read(), (sc_uint<8>)hdr2.read()));
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| 300 |
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}
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| 301 |
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void usb_ep0::wIndex_up(void) {
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| 303 |
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wIndex.write(((sc_uint<8>)hdr5.read(), (sc_uint<8>)hdr4.read()));
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| 304 |
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}
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| 305 |
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| 306 |
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void usb_ep0::wLength_up(void) {
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| 307 |
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wLength.write(((sc_uint<8>)hdr7.read(), (sc_uint<8>)hdr6.read()));
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| 308 |
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}
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| 309 |
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| 310 |
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void usb_ep0::hdr_done_r_up(void) {
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| 311 |
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hdr_done_r.write(hdr_done.read());
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| 312 |
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}
|
| 313 |
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|
| 314 |
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// Standard commands that MUST support
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| 315 |
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void usb_ep0::get_status_up(void) {
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| 316 |
|
|
get_status.write(hdr_done.read() && (bRequest.read() == GET_STATUS) && (bm_req_type.read() == 0));
|
| 317 |
|
|
}
|
| 318 |
|
|
|
| 319 |
|
|
void usb_ep0::clear_feature_up(void) {
|
| 320 |
|
|
clear_feature.write(hdr_done.read() && (bRequest.read() == CLEAR_FEATURE) && (bm_req_type.read() == 0));
|
| 321 |
|
|
}
|
| 322 |
|
|
|
| 323 |
|
|
void usb_ep0::set_feature_up(void) {
|
| 324 |
|
|
set_feature.write(hdr_done.read() && (bRequest.read() == SET_FEATURE) && (bm_req_type.read() == 0));
|
| 325 |
|
|
}
|
| 326 |
|
|
|
| 327 |
|
|
void usb_ep0::set_address_up(void) {
|
| 328 |
|
|
set_address.write(hdr_done.read() && (bRequest.read() == SET_ADDRESS) && (bm_req_type.read() == 0));
|
| 329 |
|
|
}
|
| 330 |
|
|
|
| 331 |
|
|
void usb_ep0::get_descriptor_up(void) {
|
| 332 |
|
|
get_descriptor.write(hdr_done.read() && (bRequest.read() == GET_DESCRIPTOR) && (bm_req_type.read() == 0));
|
| 333 |
|
|
}
|
| 334 |
|
|
|
| 335 |
|
|
void usb_ep0::set_descriptor_up(void) {
|
| 336 |
|
|
set_descriptor.write(hdr_done.read() && (bRequest.read() == SET_DESCRIPTOR) && (bm_req_type.read() == 0));
|
| 337 |
|
|
}
|
| 338 |
|
|
|
| 339 |
|
|
void usb_ep0::get_config_up(void) {
|
| 340 |
|
|
get_config.write(hdr_done.read() && (bRequest.read() == GET_CONFIG) && (bm_req_type.read() == 0));
|
| 341 |
|
|
}
|
| 342 |
|
|
|
| 343 |
|
|
void usb_ep0::set_config_up(void) {
|
| 344 |
|
|
set_config.write(hdr_done.read() && (bRequest.read() == SET_CONFIG) && (bm_req_type.read() == 0));
|
| 345 |
|
|
}
|
| 346 |
|
|
|
| 347 |
|
|
void usb_ep0::get_interface_up(void) {
|
| 348 |
|
|
get_interface.write(hdr_done.read() && (bRequest.read() == GET_INTERFACE) && (bm_req_type.read() == 0));
|
| 349 |
|
|
}
|
| 350 |
|
|
|
| 351 |
|
|
void usb_ep0::set_interface_up(void) {
|
| 352 |
|
|
set_interface.write(hdr_done.read() && (bRequest.read() == SET_INTERFACE) && (bm_req_type.read() == 0));
|
| 353 |
|
|
}
|
| 354 |
|
|
|
| 355 |
|
|
void usb_ep0::synch_frame_up(void) {
|
| 356 |
|
|
synch_frame.write(hdr_done.read() && (bRequest.read() == SYNCH_FRAME) && (bm_req_type.read() == 0));
|
| 357 |
|
|
}
|
| 358 |
|
|
|
| 359 |
|
|
void usb_ep0::v_set_int_up(void) {
|
| 360 |
|
|
v_set_int.write(hdr_done.read() && (bRequest.read() == V_SET_INT) && (bm_req_type.read() == 2));
|
| 361 |
|
|
}
|
| 362 |
|
|
|
| 363 |
|
|
void usb_ep0::v_set_feature_up(void) {
|
| 364 |
|
|
v_set_feature.write(hdr_done.read() && (bRequest.read() == SET_FEATURE) && (bm_req_type.read() == 2));
|
| 365 |
|
|
}
|
| 366 |
|
|
|
| 367 |
|
|
void usb_ep0::v_get_status_up(void) {
|
| 368 |
|
|
v_get_status.write(hdr_done.read() && (bRequest.read() == GET_STATUS) && (bm_req_type.read() == 2));
|
| 369 |
|
|
}
|
| 370 |
|
|
|
| 371 |
|
|
// A config err must cause the device to send a STALL for an ACK
|
| 372 |
|
|
void usb_ep0::config_err_up(void) {
|
| 373 |
|
|
config_err.write(hdr_done_r.read() && !(get_status.read() || clear_feature.read() ||
|
| 374 |
|
|
set_feature.read() || set_address.read() || get_descriptor.read() ||
|
| 375 |
|
|
set_descriptor.read() || get_config.read() || set_config.read() ||
|
| 376 |
|
|
get_interface.read() || set_interface.read() || synch_frame.read() ||
|
| 377 |
|
|
v_set_int.read() || v_set_feature.read() || v_get_status.read()));
|
| 378 |
|
|
}
|
| 379 |
|
|
|
| 380 |
|
|
void usb_ep0::send_stall_up(void) {
|
| 381 |
|
|
send_stall.write(config_err.read());
|
| 382 |
|
|
}
|
| 383 |
|
|
|
| 384 |
|
|
// Set address
|
| 385 |
|
|
void usb_ep0::set_adr_pending_up(void) {
|
| 386 |
|
|
if (!rst.read())
|
| 387 |
|
|
set_adr_pending.write(false);
|
| 388 |
|
|
else if (ctrl_in.read() || ctrl_out.read() || ctrl_setup.read())
|
| 389 |
|
|
set_adr_pending.write(false);
|
| 390 |
|
|
else if (set_address.read())
|
| 391 |
|
|
set_adr_pending.write(true);
|
| 392 |
|
|
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
void usb_ep0::funct_adr_tmp_up(void) {
|
| 396 |
|
|
if (!rst.read())
|
| 397 |
|
|
funct_adr_tmp.write(0);
|
| 398 |
|
|
else if (set_address.read())
|
| 399 |
|
|
funct_adr_tmp.write(wValue.read().range(6, 0));
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
void usb_ep0::funct_adr_up(void) {
|
| 403 |
|
|
if (!rst.read())
|
| 404 |
|
|
funct_adr.write(0);
|
| 405 |
|
|
else if (set_adr_pending.read() && ctrl_in.read())
|
| 406 |
|
|
funct_adr.write(funct_adr_tmp.read());
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
// Main FSM
|
| 410 |
|
|
void usb_ep0::state_up(void) {
|
| 411 |
|
|
if (!rst.read())
|
| 412 |
|
|
state.write(EP0_IDLE);
|
| 413 |
|
|
else
|
| 414 |
|
|
state.write(next_state.read());
|
| 415 |
|
|
}
|
| 416 |
|
|
|
| 417 |
|
|
void usb_ep0::ep0_statemachine(void) {
|
| 418 |
|
|
next_state.write(state.read());
|
| 419 |
|
|
get_hdr.write(false);
|
| 420 |
|
|
data_sel.write(ZERO_DATA);
|
| 421 |
|
|
fifo_we_d.write(false);
|
| 422 |
|
|
in_size_0.write(false);
|
| 423 |
|
|
in_size_1.write(false);
|
| 424 |
|
|
in_size_2.write(false);
|
| 425 |
|
|
rom_sel.write(false);
|
| 426 |
|
|
|
| 427 |
|
|
switch (state.read()) {// synopsys full_case parallel_case
|
| 428 |
|
|
case EP0_IDLE: // Wait for setup token
|
| 429 |
|
|
|
| 430 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 431 |
|
|
//
|
| 432 |
|
|
// DEBUG INFORMATIONS
|
| 433 |
|
|
//
|
| 434 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 435 |
|
|
|
| 436 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 437 |
|
|
cout << "EP0: Entered state IDLE (" << sc_simulation_time() << ")" << endl;
|
| 438 |
|
|
#endif
|
| 439 |
|
|
|
| 440 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 441 |
|
|
|
| 442 |
|
|
if (ctrl_setup.read())
|
| 443 |
|
|
next_state.write(EP0_GET_HDR);
|
| 444 |
|
|
if (get_status.read())
|
| 445 |
|
|
next_state.write(EP0_GET_STATUS);
|
| 446 |
|
|
if (clear_feature.read())
|
| 447 |
|
|
next_state.write(EP0_CLEAR_FEATURE);
|
| 448 |
|
|
if (set_feature.read())
|
| 449 |
|
|
next_state.write(EP0_SET_FEATURE);
|
| 450 |
|
|
if (set_address.read())
|
| 451 |
|
|
next_state.write(EP0_SET_ADDRESS);
|
| 452 |
|
|
if (get_descriptor.read())
|
| 453 |
|
|
next_state.write(EP0_GET_DESCRIPTOR);
|
| 454 |
|
|
if (set_descriptor.read())
|
| 455 |
|
|
next_state.write(EP0_SET_DESCRIPTOR);
|
| 456 |
|
|
if (get_config.read())
|
| 457 |
|
|
next_state.write(EP0_GET_CONFIG);
|
| 458 |
|
|
if (set_config.read())
|
| 459 |
|
|
next_state.write(EP0_SET_CONFIG);
|
| 460 |
|
|
if (get_interface.read())
|
| 461 |
|
|
next_state.write(EP0_GET_INTERFACE);
|
| 462 |
|
|
if (set_interface.read())
|
| 463 |
|
|
next_state.write(EP0_SET_INTERFACE);
|
| 464 |
|
|
if (synch_frame.read())
|
| 465 |
|
|
next_state.write(EP0_SYNCH_FRAME);
|
| 466 |
|
|
if (v_set_int.read())
|
| 467 |
|
|
next_state.write(EP0_V_SET_INT);
|
| 468 |
|
|
if (v_set_feature.read())
|
| 469 |
|
|
next_state.write(EP0_V_SET_INT);
|
| 470 |
|
|
if (v_get_status.read())
|
| 471 |
|
|
next_state.write(EP0_V_GET_STATUS);
|
| 472 |
|
|
break;
|
| 473 |
|
|
|
| 474 |
|
|
case EP0_GET_HDR: // Retrieve setup header
|
| 475 |
|
|
|
| 476 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 477 |
|
|
//
|
| 478 |
|
|
// DEBUG INFORMATIONS
|
| 479 |
|
|
//
|
| 480 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 481 |
|
|
|
| 482 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 483 |
|
|
cout << "EP0: Entered state GET_HDR (" << sc_simulation_time() << ")" << endl;
|
| 484 |
|
|
#endif
|
| 485 |
|
|
|
| 486 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 487 |
|
|
|
| 488 |
|
|
get_hdr.write(true);
|
| 489 |
|
|
if (hdr_done.read())
|
| 490 |
|
|
next_state.write(EP0_IDLE);
|
| 491 |
|
|
break;
|
| 492 |
|
|
|
| 493 |
|
|
case EP0_GET_STATUS: // Actions for supported commands
|
| 494 |
|
|
|
| 495 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 496 |
|
|
//
|
| 497 |
|
|
// DEBUG INFORMATIONS
|
| 498 |
|
|
//
|
| 499 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 500 |
|
|
|
| 501 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 502 |
|
|
cout << "EP0: Entered state GET_STATUS (" << sc_simulation_time() << ")" << endl;
|
| 503 |
|
|
#endif
|
| 504 |
|
|
|
| 505 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 506 |
|
|
|
| 507 |
|
|
// Return to host
|
| 508 |
|
|
// 1 for device
|
| 509 |
|
|
// 0 for interface
|
| 510 |
|
|
// 0 for endpoint
|
| 511 |
|
|
if (bm_req_recp.read() == 0)
|
| 512 |
|
|
data_sel.write(ZERO_ONE_DATA);
|
| 513 |
|
|
else
|
| 514 |
|
|
data_sel.write(ZERO_DATA);
|
| 515 |
|
|
|
| 516 |
|
|
in_size_2.write(true);
|
| 517 |
|
|
if (!fifo_full.read()) {
|
| 518 |
|
|
fifo_we_d.write(true);
|
| 519 |
|
|
if (write_done_r.read())
|
| 520 |
|
|
next_state.write(EP0_WAIT_IN_DATA);
|
| 521 |
|
|
}
|
| 522 |
|
|
break;
|
| 523 |
|
|
|
| 524 |
|
|
case EP0_V_GET_STATUS:
|
| 525 |
|
|
|
| 526 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 527 |
|
|
//
|
| 528 |
|
|
// DEBUG INFORMATIONS
|
| 529 |
|
|
//
|
| 530 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 531 |
|
|
|
| 532 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 533 |
|
|
cout << "EP0: Entered state V_GET_STATUS (" << sc_simulation_time() << ")" << endl;
|
| 534 |
|
|
#endif
|
| 535 |
|
|
|
| 536 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 537 |
|
|
|
| 538 |
|
|
data_sel.write(VEND_DATA);
|
| 539 |
|
|
in_size_2.write(true);
|
| 540 |
|
|
if (!fifo_full.read()) {
|
| 541 |
|
|
fifo_we_d.write(true);
|
| 542 |
|
|
if (write_done_r.read())
|
| 543 |
|
|
next_state.write(EP0_WAIT_IN_DATA);
|
| 544 |
|
|
}
|
| 545 |
|
|
break;
|
| 546 |
|
|
|
| 547 |
|
|
case EP0_CLEAR_FEATURE:
|
| 548 |
|
|
|
| 549 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 550 |
|
|
//
|
| 551 |
|
|
// DEBUG INFORMATIONS
|
| 552 |
|
|
//
|
| 553 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 554 |
|
|
|
| 555 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 556 |
|
|
cout << "EP0: Entered state CLEAR_FEATURE (" << sc_simulation_time() << ")" << endl;
|
| 557 |
|
|
#endif
|
| 558 |
|
|
|
| 559 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 560 |
|
|
|
| 561 |
|
|
// Just ignore this for now
|
| 562 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 563 |
|
|
break;
|
| 564 |
|
|
|
| 565 |
|
|
case EP0_SET_FEATURE:
|
| 566 |
|
|
|
| 567 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 568 |
|
|
//
|
| 569 |
|
|
// DEBUG INFORMATIONS
|
| 570 |
|
|
//
|
| 571 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 572 |
|
|
|
| 573 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 574 |
|
|
cout << "EP0: Entered state SET_FEATURE (" << sc_simulation_time() << ")" << endl;
|
| 575 |
|
|
#endif
|
| 576 |
|
|
|
| 577 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 578 |
|
|
|
| 579 |
|
|
// Just ignore this for now
|
| 580 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 581 |
|
|
break;
|
| 582 |
|
|
|
| 583 |
|
|
case EP0_SET_ADDRESS:
|
| 584 |
|
|
|
| 585 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 586 |
|
|
//
|
| 587 |
|
|
// DEBUG INFORMATIONS
|
| 588 |
|
|
//
|
| 589 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 590 |
|
|
|
| 591 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 592 |
|
|
cout << "EP0: Entered state SET_ADDRESS (" << sc_simulation_time() << ")" << endl;
|
| 593 |
|
|
#endif
|
| 594 |
|
|
|
| 595 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 596 |
|
|
|
| 597 |
|
|
// Done elsewhere
|
| 598 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 599 |
|
|
break;
|
| 600 |
|
|
|
| 601 |
|
|
case EP0_GET_DESCRIPTOR:
|
| 602 |
|
|
|
| 603 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 604 |
|
|
//
|
| 605 |
|
|
// DEBUG INFORMATIONS
|
| 606 |
|
|
//
|
| 607 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 608 |
|
|
|
| 609 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 610 |
|
|
cout << "EP0: Entered state GET_DESCRIPTOR (" << sc_simulation_time() << ")" << endl;
|
| 611 |
|
|
#endif
|
| 612 |
|
|
|
| 613 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 614 |
|
|
|
| 615 |
|
|
if ((wValue.read().range(15, 8) == 1) ||
|
| 616 |
|
|
(wValue.read().range(15, 8) == 2) ||
|
| 617 |
|
|
(wValue.read().range(15, 8) == 3))
|
| 618 |
|
|
rom_sel.write(true);
|
| 619 |
|
|
else
|
| 620 |
|
|
next_state.write(EP0_IDLE);
|
| 621 |
|
|
|
| 622 |
|
|
if (rom_done.read())
|
| 623 |
|
|
next_state.write(EP0_IDLE);
|
| 624 |
|
|
break;
|
| 625 |
|
|
|
| 626 |
|
|
case EP0_SET_DESCRIPTOR:
|
| 627 |
|
|
|
| 628 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 629 |
|
|
//
|
| 630 |
|
|
// DEBUG INFORMATIONS
|
| 631 |
|
|
//
|
| 632 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 633 |
|
|
|
| 634 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 635 |
|
|
cout << "EP0: Entered state SET_DESCRIPTOR (" << sc_simulation_time() << ")" << endl;
|
| 636 |
|
|
#endif
|
| 637 |
|
|
|
| 638 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 639 |
|
|
|
| 640 |
|
|
// This doesn't do anything since we do not support
|
| 641 |
|
|
// setting the descriptor
|
| 642 |
|
|
next_state.write(EP0_IDLE);
|
| 643 |
|
|
break;
|
| 644 |
|
|
|
| 645 |
|
|
case EP0_GET_CONFIG:
|
| 646 |
|
|
|
| 647 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 648 |
|
|
//
|
| 649 |
|
|
// DEBUG INFORMATIONS
|
| 650 |
|
|
//
|
| 651 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 652 |
|
|
|
| 653 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 654 |
|
|
cout << "EP0: Entered state GET_CONFIG (" << sc_simulation_time() << ")" << endl;
|
| 655 |
|
|
#endif
|
| 656 |
|
|
|
| 657 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 658 |
|
|
|
| 659 |
|
|
// Send one byte back that indicates current status
|
| 660 |
|
|
in_size_1.write(true);
|
| 661 |
|
|
data_sel.write(CONFIG_DATA);
|
| 662 |
|
|
if (!fifo_full.read()) {
|
| 663 |
|
|
fifo_we_d.write(true);
|
| 664 |
|
|
next_state.write(EP0_WAIT_IN_DATA);
|
| 665 |
|
|
}
|
| 666 |
|
|
break;
|
| 667 |
|
|
|
| 668 |
|
|
case EP0_SET_CONFIG:
|
| 669 |
|
|
|
| 670 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 671 |
|
|
//
|
| 672 |
|
|
// DEBUG INFORMATIONS
|
| 673 |
|
|
//
|
| 674 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 675 |
|
|
|
| 676 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 677 |
|
|
cout << "EP0: Entered state SET_CONFIG (" << sc_simulation_time() << ")" << endl;
|
| 678 |
|
|
#endif
|
| 679 |
|
|
|
| 680 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 681 |
|
|
|
| 682 |
|
|
// Done elsewhere
|
| 683 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 684 |
|
|
break;
|
| 685 |
|
|
|
| 686 |
|
|
case EP0_GET_INTERFACE:
|
| 687 |
|
|
|
| 688 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 689 |
|
|
//
|
| 690 |
|
|
// DEBUG INFORMATIONS
|
| 691 |
|
|
//
|
| 692 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 693 |
|
|
|
| 694 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 695 |
|
|
cout << "EP0: Entered state GET_INTERFACE (" << sc_simulation_time() << ")" << endl;
|
| 696 |
|
|
#endif
|
| 697 |
|
|
|
| 698 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 699 |
|
|
|
| 700 |
|
|
// Return interface 0
|
| 701 |
|
|
in_size_1.write(true);
|
| 702 |
|
|
if (!fifo_full.read()) {
|
| 703 |
|
|
fifo_we_d.write(true);
|
| 704 |
|
|
next_state.write(EP0_WAIT_IN_DATA);
|
| 705 |
|
|
}
|
| 706 |
|
|
break;
|
| 707 |
|
|
|
| 708 |
|
|
case EP0_SET_INTERFACE:
|
| 709 |
|
|
|
| 710 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 711 |
|
|
//
|
| 712 |
|
|
// DEBUG INFORMATIONS
|
| 713 |
|
|
//
|
| 714 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 715 |
|
|
|
| 716 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 717 |
|
|
cout << "EP0: Entered state SET_INTERFACE (" << sc_simulation_time() << ")" << endl;
|
| 718 |
|
|
#endif
|
| 719 |
|
|
|
| 720 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 721 |
|
|
|
| 722 |
|
|
// Just ignore this for now
|
| 723 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 724 |
|
|
break;
|
| 725 |
|
|
|
| 726 |
|
|
case EP0_SYNCH_FRAME:
|
| 727 |
|
|
|
| 728 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 729 |
|
|
//
|
| 730 |
|
|
// DEBUG INFORMATIONS
|
| 731 |
|
|
//
|
| 732 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 733 |
|
|
|
| 734 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 735 |
|
|
cout << "EP0: Entered state SYNCH_FRAME (" << sc_simulation_time() << ")" << endl;
|
| 736 |
|
|
#endif
|
| 737 |
|
|
|
| 738 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 739 |
|
|
|
| 740 |
|
|
// Return Frame current frame number
|
| 741 |
|
|
data_sel.write(SYNC_FRAME_DATA);
|
| 742 |
|
|
in_size_2.write(true);
|
| 743 |
|
|
if (!fifo_full.read()) {
|
| 744 |
|
|
fifo_we_d.write(true);
|
| 745 |
|
|
if (write_done_r.read())
|
| 746 |
|
|
next_state.write(EP0_WAIT_IN_DATA);
|
| 747 |
|
|
}
|
| 748 |
|
|
break;
|
| 749 |
|
|
|
| 750 |
|
|
case EP0_V_SET_INT:
|
| 751 |
|
|
|
| 752 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 753 |
|
|
//
|
| 754 |
|
|
// DEBUG INFORMATIONS
|
| 755 |
|
|
//
|
| 756 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 757 |
|
|
|
| 758 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 759 |
|
|
cout << "EP0: Entered state V_SET_INT (" << sc_simulation_time() << ")" << endl;
|
| 760 |
|
|
#endif
|
| 761 |
|
|
|
| 762 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 763 |
|
|
|
| 764 |
|
|
// Done elsewhere
|
| 765 |
|
|
next_state.write(EP0_STATUS_IN);
|
| 766 |
|
|
break;
|
| 767 |
|
|
|
| 768 |
|
|
case EP0_WAIT_IN_DATA:
|
| 769 |
|
|
|
| 770 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 771 |
|
|
//
|
| 772 |
|
|
// DEBUG INFORMATIONS
|
| 773 |
|
|
//
|
| 774 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 775 |
|
|
|
| 776 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 777 |
|
|
cout << "EP0: Entered state WAIT_IN_DATA (" << sc_simulation_time() << ")" << endl;
|
| 778 |
|
|
#endif
|
| 779 |
|
|
|
| 780 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 781 |
|
|
|
| 782 |
|
|
if (ctrl_in.read())
|
| 783 |
|
|
next_state.write(EP0_STATUS_OUT);
|
| 784 |
|
|
break;
|
| 785 |
|
|
|
| 786 |
|
|
case EP0_STATUS_IN:
|
| 787 |
|
|
|
| 788 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 789 |
|
|
//
|
| 790 |
|
|
// DEBUG INFORMATIONS
|
| 791 |
|
|
//
|
| 792 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 793 |
|
|
|
| 794 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 795 |
|
|
cout << "EP0: Entered state STATUS_IN (" << sc_simulation_time() << ")" << endl;
|
| 796 |
|
|
#endif
|
| 797 |
|
|
|
| 798 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 799 |
|
|
|
| 800 |
|
|
in_size_0.write(true);
|
| 801 |
|
|
if (ctrl_in.read())
|
| 802 |
|
|
next_state.write(EP0_IDLE);
|
| 803 |
|
|
break;
|
| 804 |
|
|
|
| 805 |
|
|
case EP0_STATUS_OUT:
|
| 806 |
|
|
|
| 807 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 808 |
|
|
//
|
| 809 |
|
|
// DEBUG INFORMATIONS
|
| 810 |
|
|
//
|
| 811 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 812 |
|
|
|
| 813 |
|
|
#ifdef USBF_VERBOSE_DEBUG
|
| 814 |
|
|
cout << "EP0: Entered state STATUS_OUT (" << sc_simulation_time() << ")" << endl;
|
| 815 |
|
|
#endif
|
| 816 |
|
|
|
| 817 |
|
|
///////////////////////////////////////////////////////////////////////
|
| 818 |
|
|
|
| 819 |
|
|
if (ctrl_out.read())
|
| 820 |
|
|
next_state.write(EP0_IDLE);
|
| 821 |
|
|
break;
|
| 822 |
|
|
}
|
| 823 |
|
|
}
|
| 824 |
|
|
|
