target_firmware/magpie_fw_dev/target/init/init.c

   1 /*
   2  * Copyright (c) 2013 Qualcomm Atheros, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted (subject to the limitations in the
   7  * disclaimer below) provided that the following conditions are met:
   8  *
   9  *  * Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  *  * Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  *  * Neither the name of Qualcomm Atheros nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific prior written permission.
  20  *
  21  * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
  22  * GRANTED BY THIS LICENSE.  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
  23  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
  24  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  26  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  32  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  33  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35 #if defined(_RAM_)
  36
  37 #include "athos_api.h"
  38
  39 #if defined(PROJECT_MAGPIE)
  40 #include "regdump.h"
  41 #include "usb_defs.h"
  42 extern  uint32_t *init_htc_handle;
  43 uint8_t htc_complete_setup = 0;
  44 void reset_EP4_FIFO(void);
  45 #endif
  46 #include "init.h"
  47
  48 void Magpie_init(void);
  49
  50
  51 #if defined(PROJECT_MAGPIE)
  52 extern BOOLEAN bEepromExist;
  53 extern BOOLEAN bJumptoFlash;
  54 #endif
  55
  56 static uint32_t loop_low, loop_high;
  57
  58 // reference idle count at the beginning
  59 uint32_t idle_cnt = 0;
  60
  61 #if defined(PROJECT_K2)
  62 // save the ROM printf function point
  63 int (* save_cmnos_printf)(const char * fmt, ...);
  64 #endif
  65
  66 #define ATH_DATE_STRING     __DATE__" "__TIME__
  67
  68 static void idle_task();
  69
  70 #if defined(PROJECT_MAGPIE)
  71 void fatal_exception_func()
  72 {
  73         // patch for execption
  74         (void)_xtos_set_exception_handler(EXCCAUSE_UNALIGNED, AR6002_fatal_exception_handler_patch);
  75         (void)_xtos_set_exception_handler(EXCCAUSE_LOAD_STORE_ERROR, AR6002_fatal_exception_handler_patch);
  76         (void)_xtos_set_exception_handler(EXCCAUSE_ILLEGAL, AR6002_fatal_exception_handler_patch);
  77         (void)_xtos_set_exception_handler(EXCCAUSE_INSTR_ERROR, AR6002_fatal_exception_handler_patch);
  78         (void)_xtos_set_exception_handler(EXCCAUSE_PRIVILEGED, AR6002_fatal_exception_handler_patch);
  79         (void)_xtos_set_exception_handler(EXCCAUSE_INSTR_DATA_ERROR, AR6002_fatal_exception_handler_patch);
  80         (void)_xtos_set_exception_handler(EXCCAUSE_LOAD_STORE_DATA_ERROR, AR6002_fatal_exception_handler_patch);
  81         (void)_xtos_set_exception_handler(EXCCAUSE_DIVIDE_BY_ZERO, AR6002_fatal_exception_handler_patch);
  82 }
  83 #endif
  84
  85 #if defined(PROJECT_MAGPIE)
  86 void
  87 change_magpie_clk(void)
  88 {
  89         volatile uint32_t rd_data;
  90
  91         HAL_WORD_REG_WRITE(0x00056004, 0x11);
  92         rd_data = HAL_WORD_REG_READ(0x00056004) & 0x1;
  93
  94         /* Wait for the update bit to get cleared */
  95         while (rd_data)
  96                 rd_data = HAL_WORD_REG_READ(0x00056004) & 0x1;
  97
  98         /* Put the PLL into reset */
  99         rd_data = HAL_WORD_REG_READ(0x00050010) | (1<<1);
 100         HAL_WORD_REG_WRITE(0x00050010,rd_data);
 101
 102         /*
 103          * XXX: statically set the CPU clock to 200Mhz
 104          */
 105         /* Setting of the PLL */
 106         HAL_WORD_REG_WRITE(0x00056000, 0x325);//400 MHz
 107
 108         /* Pull CPU PLL out of Reset */
 109         rd_data = HAL_WORD_REG_READ(0x00050010) & ~(1<<1);
 110         HAL_WORD_REG_WRITE(0x00050010,rd_data);
 111
 112         A_DELAY_USECS(60); // wait for stable
 113
 114         /* CPU & AHB settings */
 115         /*
 116          * AHB clk = ( CPU clk / 2 )
 117          */
 118         HAL_WORD_REG_WRITE(0x00056004, ((0x00001 | (1 << 16)|(1 << 8)))); // set plldiv to 2
 119         rd_data = HAL_WORD_REG_READ(0x00056004) & 0x1;
 120
 121         while (rd_data)
 122                 rd_data = HAL_WORD_REG_READ(0x00056004) & 0x1;
 123
 124         /* UART Setting */
 125         A_UART_HWINIT((100*1000*1000), 115200);
 126
 127 }
 128
 129 void exception_reset(struct register_dump_s *dump)
 130 {
 131         A_PRINTF("exception_reset \n");
 132
 133         /* phase I dump info */
 134         A_PRINTF("exception reset-phase 1\n");
 135         if(_assfail_ori)
 136                 _assfail_ori(dump);
 137
 138         /* phase II reset */
 139         A_PRINTF("exception reset-phase 2\n");
 140         *((volatile uint32_t*)WATCH_DOG_MAGIC_PATTERN_ADDR) = WDT_MAGIC_PATTERN;
 141
 142         HAL_WORD_REG_WRITE(MAGPIE_REG_RST_RESET_ADDR,
 143                            HAL_WORD_REG_READ(MAGPIE_REG_RST_RESET_ADDR)|(BIT10|BIT8|BIT7|BIT6));
 144
 145         HAL_WORD_REG_WRITE(MAGPIE_REG_AHB_ARB_ADDR,
 146                            (HAL_WORD_REG_READ(MAGPIE_REG_AHB_ARB_ADDR)|BIT1));
 147
 148         HAL_WORD_REG_WRITE((USB_CTRL_BASE_ADDRESS+0x118), 0x0);
 149         HAL_WORD_REG_WRITE(0x50010, HAL_WORD_REG_READ(0x50010)|BIT4);
 150         A_DELAY_USECS(5);
 151         HAL_WORD_REG_WRITE(0x50010, HAL_WORD_REG_READ(0x50010)&~BIT4);
 152         A_DELAY_USECS(5);
 153         HAL_WORD_REG_WRITE((USB_CTRL_BASE_ADDRESS+0x118), 0x1);
 154
 155         // set clock to bypass mode - 40Mhz from XTAL
 156         HAL_WORD_REG_WRITE(MAGPIE_REG_CPU_PLL_BYPASS_ADDR, (BIT0|BIT4));
 157         A_DELAY_USECS(100); // wait for stable
 158         HAL_WORD_REG_WRITE(MAGPIE_REG_CPU_PLL_ADDR, (BIT16));
 159
 160         A_UART_HWINIT((40*1000*1000), 115200);
 161
 162         A_PRINTF("do TX/RX swap\n");
 163
 164         MAGPIE_REG_USB_RX0_SWAP_DATA = 0x1;
 165         MAGPIE_REG_USB_TX0_SWAP_DATA = 0x1;
 166         MAGPIE_REG_USB_RX1_SWAP_DATA = 0x1;
 167         MAGPIE_REG_USB_RX2_SWAP_DATA = 0x1;
 168
 169         A_PRINTF("Jump to BOOT\n");
 170
 171         // reboot.....
 172         A_USB_JUMP_BOOT();
 173 }
 174
 175 void reset_EP4_FIFO(void)
 176 {
 177         int i;
 178
 179         // reset EP4 FIFO
 180         USB_BYTE_REG_WRITE(ZM_EP4_BYTE_COUNT_HIGH_OFFSET, (USB_BYTE_REG_READ(ZM_EP4_BYTE_COUNT_HIGH_OFFSET) | BIT4));
 181         for(i = 0; i < 100; i++) {}
 182         USB_BYTE_REG_WRITE(ZM_EP4_BYTE_COUNT_HIGH_OFFSET, (USB_BYTE_REG_READ(ZM_EP4_BYTE_COUNT_HIGH_OFFSET) & ~BIT4));
 183 }
 184
 185 LOCAL void zfGenExceptionEvent(uint32_t exccause, uint32_t pc, uint32_t badvaddr)
 186 {
 187         uint32_t pattern = 0x33221199;
 188
 189         A_PRINTF("<Exception>Tgt Drv send an event 44332211 to Host Drv\n");
 190         mUSB_STATUS_IN_INT_DISABLE();
 191
 192         USB_WORD_REG_WRITE(ZM_CBUS_FIFO_SIZE_OFFSET, 0x0f);
 193
 194         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, pattern);
 195         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, exccause);
 196         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, pc);
 197         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, badvaddr);
 198
 199         mUSB_EP3_XFER_DONE();
 200 }
 201
 202 LOCAL void zfGenWrongEpidEvent(uint32_t epid)
 203 {
 204         uint32_t pattern   = 0x33221299;
 205
 206         A_PRINTF("<WrongEPID>Tgt Drv send an event 44332212 to Host Drv\n");
 207         mUSB_STATUS_IN_INT_DISABLE();
 208
 209         USB_WORD_REG_WRITE(ZM_CBUS_FIFO_SIZE_OFFSET, 0x0f);
 210
 211         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, pattern);
 212         USB_WORD_REG_WRITE(ZM_EP3_DATA_OFFSET, epid);
 213
 214         mUSB_EP3_XFER_DONE();
 215 }
 216
 217 void
 218 AR6002_fatal_exception_handler_patch(CPU_exception_frame_t *exc_frame)
 219 {
 220         struct register_dump_s dump;
 221         uint32_t  exc_cause, exc_vaddr;
 222         asm volatile("rsr %0,%1" : "=r" (exc_cause) : "n" (EXCCAUSE));
 223         asm volatile("rsr %0,%1" : "=r" (exc_vaddr) : "n" (EXCVADDR));
 224
 225         dump.exc_frame              = *exc_frame; /* structure copy */
 226         dump.badvaddr               = exc_vaddr;
 227         dump.exc_frame.xt_exccause  = exc_cause;
 228         dump.pc                     = exc_frame->xt_pc;
 229         dump.assline                = 0;
 230
 231         zfGenExceptionEvent(dump.exc_frame.xt_exccause, dump.pc, dump.badvaddr);
 232
 233 #if SYSTEM_MODULE_PRINT
 234         A_PRINTF("\nFatal exception (%d): \tpc=0x%x \n\r\tbadvaddr=0x%x \n\r\tdump area=0x%x\n",
 235                  dump.exc_frame.xt_exccause, dump.pc, dump.badvaddr, &dump);
 236         PRINT_FAILURE_STATE();
 237 #else
 238         A_PUTS("Fatal exception\n\r");
 239 #endif
 240         A_ASSFAIL(&dump);
 241
 242 #if defined(_ROM_)
 243         A_WDT_ENABLE();
 244 #endif
 245
 246         while(1) ;
 247 }
 248
 249 void
 250 HTCControlSvcProcessMsg_patch(HTC_ENDPOINT_ID EndpointID, adf_nbuf_t hdr_buf,
 251                               adf_nbuf_t pBuffers, void *arg)
 252 {
 253         a_uint8_t *anbdata;
 254         a_uint32_t anblen;
 255         HTC_UNKNOWN_MSG *pMsg;
 256
 257         /* we assume buffers are aligned such that we can access the message
 258          * parameters directly*/
 259         adf_nbuf_peek_header(pBuffers, &anbdata, &anblen);
 260         pMsg = (HTC_UNKNOWN_MSG *)anbdata;
 261
 262         if (pMsg->MessageID == HTC_MSG_SETUP_COMPLETE_ID) {
 263                 htc_complete_setup = 1;
 264         }
 265
 266         HTCControlSvcProcessMsg(EndpointID, hdr_buf, pBuffers, arg);
 267 }
 268
 269 /* Patch callback for check the endpoint ID is correct or not */
 270 void
 271 HTCMsgRecvHandler_patch(adf_nbuf_t hdr_buf, adf_nbuf_t buffer, void *context)
 272 {
 273         int eid;
 274         a_uint8_t *anbdata;
 275         a_uint32_t anblen;
 276         adf_nbuf_t tmp_nbuf;
 277         HTC_FRAME_HDR *pHTCHdr;
 278
 279         if (hdr_buf == ADF_NBUF_NULL) {
 280                 /* HTC hdr is not in the hdr_buf */
 281                 tmp_nbuf = buffer;
 282         } else {
 283                 tmp_nbuf = hdr_buf;
 284         }
 285
 286         adf_nbuf_peek_header(tmp_nbuf, &anbdata, &anblen);
 287         pHTCHdr = (HTC_FRAME_HDR *)anbdata;
 288
 289         eid = pHTCHdr->EndpointID;
 290
 291         if ((eid != 0) && (htc_complete_setup == 0)) {
 292                 A_PRINTF("\nHTC Hdr EndpointID = %d, anblen = %d\n", pHTCHdr->EndpointID, anblen);
 293                 A_PRINTF("HTC Hder : %2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x\n",
 294                          *anbdata, *(anbdata+1), *(anbdata+2), *(anbdata+3),
 295                          *(anbdata+4), *(anbdata+5), *(anbdata+6), *(anbdata+7),
 296                          *(anbdata+8), *(anbdata+9), *(anbdata+10), *(anbdata+11));
 297                 A_PRINTF("init_htc_handle = 0x%8x\n", init_htc_handle);
 298
 299                 if (pHTCHdr->EndpointID == 1) {
 300                         A_PRINTF("Return WMI Command buffer\n");
 301                         HTC_ReturnBuffers(init_htc_handle, 1, tmp_nbuf);
 302                 } else if ((pHTCHdr->EndpointID == 5) || (pHTCHdr->EndpointID == 6)) {
 303                         A_PRINTF("Return Data buffer\n");
 304                         HTC_ReturnBuffers(init_htc_handle, 6, tmp_nbuf);
 305                 } else {
 306                 }
 307         } else {
 308                 if ((pHTCHdr->EndpointID < 0) || (pHTCHdr->EndpointID >= ENDPOINT_MAX)) {
 309                         A_PRINTF("HTC Hdr EndpointID = %d, anblen = %d\n", pHTCHdr->EndpointID, anblen);
 310                         A_PRINTF("HTC Hder : %2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x\n",
 311                                  *anbdata, *(anbdata+1), *(anbdata+2), *(anbdata+3),
 312                                  *(anbdata+4), *(anbdata+5), *(anbdata+6), *(anbdata+7));
 313
 314                         if (anblen > 64) {
 315                                 A_PRINTF("EP1-Tx-Data with Wrong Htc Header Endpoint ID, WAR free this buffer\n");
 316                                 HTC_ReturnBuffers(init_htc_handle, 6, tmp_nbuf);
 317                                 A_PRINTF("EP1-Tx-Data > Free this buffer successfully\n");
 318                         } else {
 319                                 A_PRINTF("EP4-WMI-Cmd with Wrong Htc Header Endpoint ID, WAR free this buffer\n");
 320                                 zfGenWrongEpidEvent((a_uint32_t)pHTCHdr->EndpointID);
 321                                 HTC_ReturnBuffers(init_htc_handle, 1, tmp_nbuf);
 322                                 A_PRINTF("EP4-WMI-Cmd > Free this buffer successfully\n");
 323                         }
 324                 } else
 325                         HTCMsgRecvHandler( hdr_buf, buffer, context);
 326         }
 327 }
 328 #endif
 329
 330 void init_mem()
 331 {
 332         int i = 0;
 333         uint32_t *temp = (uint32_t *)ALLOCRAM_START;
 334
 335         /* clear bss segment */
 336         for(temp = (uint32_t *)&START_BSS; temp < (uint32_t *)&END_BSS; temp++)
 337                 *temp = 0;
 338
 339         /* clear heap segment */
 340         for(i = 0; i < ((ALLOCRAM_SIZE - 4)/4); i++)
 341                 temp[i] = 0;
 342 }
 343
 344 static void idle_task()
 345 {
 346         if (loop_low == 0xffffffff) {
 347                 loop_low = 0;
 348                 loop_high++;
 349         } else {
 350                 loop_low++;
 351         }
 352         return;
 353 }
 354
 355 void wlan_task(void)
 356 {
 357         loop_low=loop_high=0;
 358
 359         while(1) {
 360 #if defined(PROJECT_MAGPIE)
 361                 if (bJumptoFlash){
 362                         bJumptoFlash = FALSE;
 363                         break;
 364                 }
 365 #endif
 366
 367                 /* update wdt timer */
 368                 A_WDT_TASK();
 369
 370                 /* UPDATE cticks - to be moved to idle_tsk, put here will be easier to read  */
 371                 A_CLOCK_TICK();
 372
 373                 HIF_isr_handler(NULL);
 374
 375 #if MAGPIE_ENABLE_WLAN == 1
 376                 wlan_pci_isr();
 377 #endif
 378
 379                 A_TASKLET_RUN();
 380                 A_TIMER_RUN();
 381
 382                 /* Very low priority tasks */
 383                 if ((loop_low & 0x1fff) == 0x7)
 384                         A_DBG_TASK();
 385
 386                 idle_task();
 387         }
 388 }
 389
 390 #endif /* #if defined(_RAM_) */