drivers/usb/musb/musb_debug.h

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