contrib/firmware/angie/c/src/gpif.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 /*
   4   This program configures the General Programmable Interface (GPIF) for FX2.
   5   Please do not modify sections of text which are marked as "DO NOT EDIT ...".
   6 */
   7
   8 /* GPIF Program Code */
   9
  10 #include "reg_ezusb.h"
  11 #include "delay.h"
  12
  13 /****************************** GPIF PROGRAM CODE ********************************/
  14 /* DO NOT EDIT ... */
  15 const char wavedata[128] = {
  16 /* Wave 0 */
  17 /* LenBr */ 0x01,     0x3F,     0x01,     0x01,     0x01,     0x01,     0x01,     0x07,
  18 /* Opcode*/ 0x02,     0x07,     0x02,     0x02,     0x02,     0x02,     0x02,     0x00,
  19 /* Output*/ 0x04,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,
  20 /* LFun  */ 0x00,     0x09,     0x00,     0x00,     0x00,     0x00,     0x00,     0x3F,
  21 /* Wave 1 */
  22 /* LenBr */ 0x88,     0x01,     0x3F,     0x01,     0x01,     0x01,     0x01,     0x07,
  23 /* Opcode*/ 0x01,     0x02,     0x05,     0x00,     0x00,     0x00,     0x00,     0x00,
  24 /* Output*/ 0x07,     0x05,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,
  25 /* LFun  */ 0x09,     0x00,     0x09,     0x00,     0x00,     0x00,     0x00,     0x3F,
  26 /* Wave 2 */
  27 /* LenBr */ 0x01,     0x01,     0x01,     0x01,     0x01,     0x01,     0x01,     0x07,
  28 /* Opcode*/ 0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,
  29 /* Output*/ 0x07,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,
  30 /* LFun  */ 0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x3F,
  31 /* Wave 3 */
  32 /* LenBr */ 0x01,     0x01,     0x01,     0x01,     0x01,     0x01,     0x01,     0x07,
  33 /* Opcode*/ 0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,
  34 /* Output*/ 0x07,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,     0x07,
  35 /* LFun  */ 0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x00,     0x3F,
  36 };
  37 /* END DO NOT EDIT */
  38
  39 /* DO NOT EDIT ... */
  40 const char flowstates[36] = {
  41 /* Wave 0 flowstates */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  42 /* Wave 1 flowstates */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  43 /* Wave 2 flowstates */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  44 /* Wave 3 flowstates */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  45 };
  46 /* END DO NOT EDIT */
  47
  48 /* DO NOT EDIT ... */
  49 const char initdata[7] = {
  50 /* Regs  */ 0xE0, 0x00, 0x00, 0x07, 0xEE, 0xF2, 0x00
  51 };
  52 /* END DO NOT EDIT */
  53
  54 void gpif_init(void)
  55 {
  56         uint8_t i;
  57
  58         IFCONFIG = 0xEE;
  59
  60         GPIFABORT = 0xFF;       /* abort any waveforms pending */
  61         GPIFREADYCFG = initdata[0];
  62         GPIFCTLCFG = initdata[1];
  63         GPIFIDLECS = initdata[2];
  64         GPIFIDLECTL = initdata[3];
  65         GPIFWFSELECT = initdata[5];
  66         GPIFREADYSTAT = initdata[6];
  67
  68         /* use dual autopointer feature... */
  69         AUTOPTRSETUP = 0x07;
  70
  71         /* source */
  72         AUTOPTRH1 = (uint8_t)(((uint16_t)(&wavedata) >> 8) & 0xff);
  73         AUTOPTRL1 = (uint8_t)((uint16_t)(&wavedata) & 0xff);
  74
  75         /* destination */
  76         AUTOPTRH2 = 0xE4;
  77         AUTOPTRL2 = 0x00;
  78
  79         /* transfer */
  80         for (i = 0x00; i < 128; i++)
  81                 EXTAUTODAT2 = EXTAUTODAT1;
  82
  83         /* GPIF address pins update when GPIFADRH/L written */
  84         syncdelay(3);
  85         GPIFADRH = 0x00;    /* bits[7:1] always 0 */
  86         syncdelay(3);
  87         GPIFADRL = 0x00;    /* point to PERIPHERAL address 0x0000 */
  88
  89         /* Configure GPIF flowstates registers for Wave 0 of wavedata */
  90         FLOWSTATE = flowstates[0];
  91         FLOWLOGIC = flowstates[1];
  92         FLOWEQ0CTL = flowstates[2];
  93         FLOWEQ1CTL = flowstates[3];
  94         FLOWHOLDOFF = flowstates[4];
  95         FLOWSTB = flowstates[5];
  96         FLOWSTBEDGE = flowstates[6];
  97         FLOWSTBHPERIOD = flowstates[7];
  98 }