drivers/usb/musb/musb_debug.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2009 Wind River Systems, Inc.
   4  * Tom Rix <Tom.Rix@windriver.com>
   5  */
   6
   7 /* Define MUSB_DEBUG before including this file to get debug macros */
   8 #ifdef MUSB_DEBUG
   9
  10 #define MUSB_FLAGS_PRINT(v, x, y)               \
  11   if (((v) & MUSB_##x##_##y))                   \
  12                 serial_printf("\t\t"#y"\n")
  13
  14 static inline void musb_print_pwr(u8 b)
  15 {
  16         serial_printf("\tpower   0x%2.2x\n", b);
  17         MUSB_FLAGS_PRINT(b, POWER, ISOUPDATE);
  18         MUSB_FLAGS_PRINT(b, POWER, SOFTCONN);
  19         MUSB_FLAGS_PRINT(b, POWER, HSENAB);
  20         MUSB_FLAGS_PRINT(b, POWER, HSMODE);
  21         MUSB_FLAGS_PRINT(b, POWER, RESET);
  22         MUSB_FLAGS_PRINT(b, POWER, RESUME);
  23         MUSB_FLAGS_PRINT(b, POWER, SUSPENDM);
  24         MUSB_FLAGS_PRINT(b, POWER, ENSUSPEND);
  25 }
  26
  27 static inline void musb_print_csr0(u16 w)
  28 {
  29         serial_printf("\tcsr0    0x%4.4x\n", w);
  30         MUSB_FLAGS_PRINT(w, CSR0, FLUSHFIFO);
  31         MUSB_FLAGS_PRINT(w, CSR0_P, SVDSETUPEND);
  32         MUSB_FLAGS_PRINT(w, CSR0_P, SVDRXPKTRDY);
  33         MUSB_FLAGS_PRINT(w, CSR0_P, SENDSTALL);
  34         MUSB_FLAGS_PRINT(w, CSR0_P, SETUPEND);
  35         MUSB_FLAGS_PRINT(w, CSR0_P, DATAEND);
  36         MUSB_FLAGS_PRINT(w, CSR0_P, SENTSTALL);
  37         MUSB_FLAGS_PRINT(w, CSR0, TXPKTRDY);
  38         MUSB_FLAGS_PRINT(w, CSR0, RXPKTRDY);
  39 }
  40
  41 static inline void musb_print_intrusb(u8 b)
  42 {
  43         serial_printf("\tintrusb 0x%2.2x\n", b);
  44         MUSB_FLAGS_PRINT(b, INTR, VBUSERROR);
  45         MUSB_FLAGS_PRINT(b, INTR, SESSREQ);
  46         MUSB_FLAGS_PRINT(b, INTR, DISCONNECT);
  47         MUSB_FLAGS_PRINT(b, INTR, CONNECT);
  48         MUSB_FLAGS_PRINT(b, INTR, SOF);
  49         MUSB_FLAGS_PRINT(b, INTR, RESUME);
  50         MUSB_FLAGS_PRINT(b, INTR, SUSPEND);
  51
  52         if (b & MUSB_INTR_BABBLE)
  53                 serial_printf("\t\tMUSB_INTR_RESET or MUSB_INTR_BABBLE\n");
  54
  55 }
  56
  57 static inline void musb_print_intrtx(u16 w)
  58 {
  59         serial_printf("\tintrtx 0x%4.4x\n", w);
  60 }
  61
  62 static inline void musb_print_intrrx(u16 w)
  63 {
  64         serial_printf("\tintrx 0x%4.4x\n", w);
  65 }
  66
  67 static inline void musb_print_devctl(u8 b)
  68 {
  69         serial_printf("\tdevctl  0x%2.2x\n", b);
  70         if (b & MUSB_DEVCTL_BDEVICE)
  71                 serial_printf("\t\tB device\n");
  72         else
  73                 serial_printf("\t\tA device\n");
  74         if (b & MUSB_DEVCTL_FSDEV)
  75                 serial_printf("\t\tFast Device -(host mode)\n");
  76         if (b & MUSB_DEVCTL_LSDEV)
  77                 serial_printf("\t\tSlow Device -(host mode)\n");
  78         if (b & MUSB_DEVCTL_HM)
  79                 serial_printf("\t\tHost mode\n");
  80         else
  81                 serial_printf("\t\tPeripherial mode\n");
  82         if (b & MUSB_DEVCTL_HR)
  83                 serial_printf("\t\tHost request started(B device)\n");
  84         else
  85                 serial_printf("\t\tHost request finished(B device)\n");
  86         if (b & MUSB_DEVCTL_BDEVICE) {
  87                 if (b & MUSB_DEVCTL_SESSION)
  88                         serial_printf("\t\tStart of session(B device)\n");
  89                 else
  90                         serial_printf("\t\tEnd of session(B device)\n");
  91         } else {
  92                 if (b & MUSB_DEVCTL_SESSION)
  93                         serial_printf("\t\tStart of session(A device)\n");
  94                 else
  95                         serial_printf("\t\tEnd of session(A device)\n");
  96         }
  97 }
  98
  99 static inline void musb_print_config(u8 b)
 100 {
 101         serial_printf("\tconfig 0x%2.2x\n", b);
 102         if (b & MUSB_CONFIGDATA_MPRXE)
 103                 serial_printf("\t\tAuto combine rx bulk packets\n");
 104         if (b & MUSB_CONFIGDATA_MPTXE)
 105                 serial_printf("\t\tAuto split tx bulk packets\n");
 106         if (b & MUSB_CONFIGDATA_BIGENDIAN)
 107                 serial_printf("\t\tBig Endian ordering\n");
 108         else
 109                 serial_printf("\t\tLittle Endian ordering\n");
 110         if (b & MUSB_CONFIGDATA_HBRXE)
 111                 serial_printf("\t\tHigh speed rx iso endpoint\n");
 112         if (b & MUSB_CONFIGDATA_HBTXE)
 113                 serial_printf("\t\tHigh speed tx iso endpoint\n");
 114         if (b & MUSB_CONFIGDATA_DYNFIFO)
 115                 serial_printf("\t\tDynamic fifo sizing\n");
 116         if (b & MUSB_CONFIGDATA_SOFTCONE)
 117                 serial_printf("\t\tSoft Connect\n");
 118         if (b & MUSB_CONFIGDATA_UTMIDW)
 119                 serial_printf("\t\t16 bit data width\n");
 120         else
 121                 serial_printf("\t\t8 bit data width\n");
 122 }
 123
 124 static inline void musb_print_rxmaxp(u16 w)
 125 {
 126         serial_printf("\trxmaxp  0x%4.4x\n", w);
 127 }
 128
 129 static inline void musb_print_rxcsr(u16 w)
 130 {
 131         serial_printf("\trxcsr   0x%4.4x\n", w);
 132         MUSB_FLAGS_PRINT(w, RXCSR, AUTOCLEAR);
 133         MUSB_FLAGS_PRINT(w, RXCSR, DMAENAB);
 134         MUSB_FLAGS_PRINT(w, RXCSR, DISNYET);
 135         MUSB_FLAGS_PRINT(w, RXCSR, PID_ERR);
 136         MUSB_FLAGS_PRINT(w, RXCSR, DMAMODE);
 137         MUSB_FLAGS_PRINT(w, RXCSR, CLRDATATOG);
 138         MUSB_FLAGS_PRINT(w, RXCSR, FLUSHFIFO);
 139         MUSB_FLAGS_PRINT(w, RXCSR, DATAERROR);
 140         MUSB_FLAGS_PRINT(w, RXCSR, FIFOFULL);
 141         MUSB_FLAGS_PRINT(w, RXCSR, RXPKTRDY);
 142         MUSB_FLAGS_PRINT(w, RXCSR_P, SENTSTALL);
 143         MUSB_FLAGS_PRINT(w, RXCSR_P, SENDSTALL);
 144         MUSB_FLAGS_PRINT(w, RXCSR_P, OVERRUN);
 145
 146         if (w & MUSB_RXCSR_P_ISO)
 147                 serial_printf("\t\tiso mode\n");
 148         else
 149                 serial_printf("\t\tbulk mode\n");
 150
 151 }
 152
 153 static inline void musb_print_txmaxp(u16 w)
 154 {
 155         serial_printf("\ttxmaxp  0x%4.4x\n", w);
 156 }
 157
 158 static inline void musb_print_txcsr(u16 w)
 159 {
 160         serial_printf("\ttxcsr   0x%4.4x\n", w);
 161         MUSB_FLAGS_PRINT(w, TXCSR, TXPKTRDY);
 162         MUSB_FLAGS_PRINT(w, TXCSR, FIFONOTEMPTY);
 163         MUSB_FLAGS_PRINT(w, TXCSR, FLUSHFIFO);
 164         MUSB_FLAGS_PRINT(w, TXCSR, CLRDATATOG);
 165         MUSB_FLAGS_PRINT(w, TXCSR_P, UNDERRUN);
 166         MUSB_FLAGS_PRINT(w, TXCSR_P, SENTSTALL);
 167         MUSB_FLAGS_PRINT(w, TXCSR_P, SENDSTALL);
 168
 169         if (w & MUSB_TXCSR_MODE)
 170                 serial_printf("\t\tTX mode\n");
 171         else
 172                 serial_printf("\t\tRX mode\n");
 173 }
 174
 175 #else
 176
 177 /* stubs */
 178
 179 #define musb_print_pwr(b)
 180 #define musb_print_csr0(w)
 181 #define musb_print_intrusb(b)
 182 #define musb_print_intrtx(w)
 183 #define musb_print_intrrx(w)
 184 #define musb_print_devctl(b)
 185 #define musb_print_config(b)
 186 #define musb_print_rxmaxp(w)
 187 #define musb_print_rxcsr(w)
 188 #define musb_print_txmaxp(w)
 189 #define musb_print_txcsr(w)
 190
 191 #endif /* MUSB_DEBUG */