tmk_core/tool/mbed/mbed-sdk/libraries/USBDevice/USBDevice/TARGET_RENESAS/TARGET_RZ_A1H/usb1/src/common/usb1_function_dma.c

   1 /*******************************************************************************
   2 * DISCLAIMER
   3 * This software is supplied by Renesas Electronics Corporation and is only
   4 * intended for use with Renesas products. No other uses are authorized. This
   5 * software is owned by Renesas Electronics Corporation and is protected under
   6 * all applicable laws, including copyright laws.
   7 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
   8 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
   9 * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
  10 * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
  11 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
  12 * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
  13 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
  14 * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
  15 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  16 * Renesas reserves the right, without notice, to make changes to this software
  17 * and to discontinue the availability of this software. By using this software,
  18 * you agree to the additional terms and conditions found by accessing the
  19 * following link:
  20 * http://www.renesas.com/disclaimer
  21 * Copyright (C) 2012 - 2014 Renesas Electronics Corporation. All rights reserved.
  22 *******************************************************************************/
  23 /*******************************************************************************
  24 * File Name    : usb1_function_dma.c
  25 * $Rev: 1116 $
  26 * $Date:: 2014-07-09 16:29:19 +0900#$
  27 * Device(s)    : RZ/A1H
  28 * Tool-Chain   :
  29 * OS           : None
  30 * H/W Platform :
  31 * Description  : RZ/A1H R7S72100 USB Sample Program
  32 * Operation    :
  33 * Limitations  :
  34 *******************************************************************************/
  35
  36
  37 /*******************************************************************************
  38 Includes   <System Includes> , "Project Includes"
  39 *******************************************************************************/
  40 #include "usb1_function.h"
  41
  42
  43 /*******************************************************************************
  44 Typedef definitions
  45 *******************************************************************************/
  46
  47
  48 /*******************************************************************************
  49 Macro definitions
  50 *******************************************************************************/
  51
  52
  53 /*******************************************************************************
  54 Imported global variables and functions (from other files)
  55 *******************************************************************************/
  56
  57
  58 /*******************************************************************************
  59 Exported global variables and functions (to be accessed by other files)
  60 *******************************************************************************/
  61
  62
  63 /*******************************************************************************
  64 Private global variables and functions
  65 *******************************************************************************/
  66 static void usb1_function_dmaint(uint16_t fifo);
  67 static void usb1_function_dmaint_buf2fifo(uint16_t pipe);
  68 static void usb1_function_dmaint_fifo2buf(uint16_t pipe);
  69
  70
  71 /*******************************************************************************
  72 * Function Name: usb1_function_dma_stop_d0
  73 * Description  : D0FIFO DMA stop
  74 * Arguments    : uint16_t pipe      : pipe number
  75 *              : uint32_t remain    : transfer byte
  76 * Return Value : none
  77 *******************************************************************************/
  78 void usb1_function_dma_stop_d0 (uint16_t pipe, uint32_t remain)
  79 {
  80     uint16_t dtln;
  81     uint16_t dfacc;
  82     uint16_t buffer;
  83     uint16_t sds_b = 1;
  84
  85     dfacc = RZA_IO_RegRead_16(&USB201.D0FBCFG, USB_DnFBCFG_DFACC_SHIFT, USB_DnFBCFG_DFACC);
  86
  87     if (dfacc == 2)
  88     {
  89         sds_b = 32;
  90     }
  91     else if (dfacc == 1)
  92     {
  93         sds_b = 16;
  94     }
  95     else
  96     {
  97         if (g_usb1_function_DmaInfo[USB_FUNCTION_D0FIFO].size == 2)
  98         {
  99             sds_b = 4;
 100         }
 101         else if (g_usb1_function_DmaInfo[USB_FUNCTION_D0FIFO].size == 1)
 102         {
 103             sds_b = 2;
 104         }
 105         else
 106         {
 107             sds_b = 1;
 108         }
 109     }
 110
 111     if (RZA_IO_RegRead_16(&g_usb1_function_pipecfg[pipe], USB_PIPECFG_BFRE_SHIFT, USB_PIPECFG_BFRE) == 1)
 112     {
 113         if (g_usb1_function_pipe_status[pipe] != DEVDRV_USBF_PIPE_DONE)
 114         {
 115             buffer = USB201.D0FIFOCTR;
 116             dtln   = (buffer & USB_FUNCTION_BITDTLN);
 117
 118             if ((dtln % sds_b) != 0)
 119             {
 120                 remain += (sds_b - (dtln % sds_b));
 121             }
 122             g_usb1_function_PipeDataSize[pipe] = (g_usb1_function_data_count[pipe] - remain);
 123             g_usb1_function_data_count[pipe]   = remain;
 124         }
 125     }
 126
 127     RZA_IO_RegWrite_16(&USB201.D0FIFOSEL, 0, USB_DnFIFOSEL_DREQE_SHIFT, USB_DnFIFOSEL_DREQE);
 128 }
 129
 130 /*******************************************************************************
 131 * Function Name: usb1_function_dma_stop_d1
 132 * Description  : D1FIFO DMA stop
 133 * Arguments    : uint16_t pipe      : pipe number
 134 *              : uint32_t remain    : transfer byte
 135 * Return Value : none
 136 *******************************************************************************/
 137 void usb1_function_dma_stop_d1 (uint16_t pipe, uint32_t remain)
 138 {
 139     uint16_t dtln;
 140     uint16_t dfacc;
 141     uint16_t buffer;
 142     uint16_t sds_b = 1;
 143
 144     dfacc = RZA_IO_RegRead_16(&USB201.D1FBCFG, USB_DnFBCFG_DFACC_SHIFT, USB_DnFBCFG_DFACC);
 145
 146     if (dfacc == 2)
 147     {
 148         sds_b = 32;
 149     }
 150     else if (dfacc == 1)
 151     {
 152         sds_b = 16;
 153     }
 154     else
 155     {
 156         if (g_usb1_function_DmaInfo[USB_FUNCTION_D1FIFO].size == 2)
 157         {
 158             sds_b = 4;
 159         }
 160         else if (g_usb1_function_DmaInfo[USB_FUNCTION_D1FIFO].size == 1)
 161         {
 162             sds_b = 2;
 163         }
 164         else
 165         {
 166             sds_b = 1;
 167         }
 168     }
 169
 170     if (RZA_IO_RegRead_16(&g_usb1_function_pipecfg[pipe], USB_PIPECFG_BFRE_SHIFT, USB_PIPECFG_BFRE) == 1)
 171     {
 172         if (g_usb1_function_pipe_status[pipe] != DEVDRV_USBF_PIPE_DONE)
 173         {
 174             buffer = USB201.D1FIFOCTR;
 175             dtln   = (buffer & USB_FUNCTION_BITDTLN);
 176
 177             if ((dtln % sds_b) != 0)
 178             {
 179                 remain += (sds_b - (dtln % sds_b));
 180             }
 181             g_usb1_function_PipeDataSize[pipe] = (g_usb1_function_data_count[pipe] - remain);
 182             g_usb1_function_data_count[pipe]   = remain;
 183         }
 184     }
 185
 186     RZA_IO_RegWrite_16(&USB201.D1FIFOSEL, 0, USB_DnFIFOSEL_DREQE_SHIFT, USB_DnFIFOSEL_DREQE);
 187 }
 188
 189 /*******************************************************************************
 190 * Function Name: usb1_function_dma_interrupt_d0fifo
 191 * Description  : This function is DMA interrupt handler entry.
 192 *              : Execute usb1_function_dmaint() after disabling DMA interrupt in this function.
 193 *              : Disable DMA interrupt to DMAC executed when USB_FUNCTION_D0FIFO_DMA is
 194 *              : specified by dma->fifo.
 195 *              : Register this function as DMA complete interrupt.
 196 * Arguments    : uint32_t int_sense ; Interrupts detection mode
 197 *              :                    ;  INTC_LEVEL_SENSITIVE : Level sense
 198 *              :                    ;  INTC_EDGE_TRIGGER : Edge trigger
 199 * Return Value : none
 200 *******************************************************************************/
 201 void usb1_function_dma_interrupt_d0fifo (uint32_t int_sense)
 202 {
 203     usb1_function_dmaint(USB_FUNCTION_D0FIFO);
 204     g_usb1_function_DmaStatus[USB_FUNCTION_D0FIFO] = USB_FUNCTION_DMA_READY;
 205 }
 206
 207 /*******************************************************************************
 208 * Function Name: usb1_function_dma_interrupt_d1fifo
 209 * Description  : This function is DMA interrupt handler entry.
 210 *              : Execute usb1_function_dmaint() after disabling DMA interrupt in this function.
 211 *              : Disable DMA interrupt to DMAC executed when USB_FUNCTION_D1FIFO_DMA is
 212 *              : specified by dma->fifo.
 213 *              : Register this function as DMA complete interrupt.
 214 * Arguments    : uint32_t int_sense ; Interrupts detection mode
 215 *              :                    ;  INTC_LEVEL_SENSITIVE : Level sense
 216 *              :                    ;  INTC_EDGE_TRIGGER : Edge trigger
 217 * Return Value : none
 218 *******************************************************************************/
 219 void usb1_function_dma_interrupt_d1fifo (uint32_t int_sense)
 220 {
 221     usb1_function_dmaint(USB_FUNCTION_D1FIFO);
 222     g_usb1_function_DmaStatus[USB_FUNCTION_D1FIFO] = USB_FUNCTION_DMA_READY;
 223 }
 224
 225 /*******************************************************************************
 226 * Function Name: usb1_function_dmaint
 227 * Description  : This function is DMA transfer end interrupt
 228 * Arguments    : uint16_t fifo  ; fifo number
 229 *              :                ;  USB_FUNCTION_D0FIFO
 230 *              :                ;  USB_FUNCTION_D1FIFO
 231 * Return Value : none
 232 *******************************************************************************/
 233 static void usb1_function_dmaint (uint16_t fifo)
 234 {
 235     uint16_t pipe;
 236
 237     pipe = g_usb1_function_DmaPipe[fifo];
 238
 239     if (g_usb1_function_DmaInfo[fifo].dir == USB_FUNCTION_BUF2FIFO)
 240     {
 241         usb1_function_dmaint_buf2fifo(pipe);
 242     }
 243     else
 244     {
 245         usb1_function_dmaint_fifo2buf(pipe);
 246     }
 247 }
 248
 249 /*******************************************************************************
 250 * Function Name: usb1_function_dmaint_fifo2buf
 251 * Description  : Executes read completion from FIFO by DMAC.
 252 * Arguments    : uint16_t pipe      : pipe number
 253 * Return Value : none
 254 *******************************************************************************/
 255 static void usb1_function_dmaint_fifo2buf (uint16_t pipe)
 256 {
 257     uint32_t remain;
 258     uint16_t useport;
 259
 260     if (g_usb1_function_pipe_status[pipe] != DEVDRV_USBF_PIPE_DONE)
 261     {
 262         useport = (uint16_t)(g_usb1_function_PipeTbl[pipe] & USB_FUNCTION_FIFO_USE);
 263
 264         if (useport == USB_FUNCTION_D0FIFO_DMA)
 265         {
 266             remain = Userdef_USB_usb1_function_stop_dma0();
 267             usb1_function_dma_stop_d0(pipe, remain);
 268
 269             if (RZA_IO_RegRead_16(&g_usb1_function_pipecfg[pipe], USB_PIPECFG_BFRE_SHIFT, USB_PIPECFG_BFRE) == 0)
 270             {
 271                 if (g_usb1_function_DmaStatus[USB_FUNCTION_D0FIFO] == USB_FUNCTION_DMA_BUSYEND)
 272                 {
 273                     USB201.D0FIFOCTR = USB_FUNCTION_BITBCLR;
 274                     g_usb1_function_pipe_status[pipe] = DEVDRV_USBF_PIPE_DONE;
 275                 }
 276                 else
 277                 {
 278                     usb1_function_enable_brdy_int(pipe);
 279                 }
 280             }
 281         }
 282         else
 283         {
 284             remain = Userdef_USB_usb1_function_stop_dma1();
 285             usb1_function_dma_stop_d1(pipe, remain);
 286
 287             if (RZA_IO_RegRead_16(&g_usb1_function_pipecfg[pipe], USB_PIPECFG_BFRE_SHIFT, USB_PIPECFG_BFRE) == 0)
 288             {
 289                 if (g_usb1_function_DmaStatus[USB_FUNCTION_D1FIFO] == USB_FUNCTION_DMA_BUSYEND)
 290                 {
 291                     USB201.D1FIFOCTR = USB_FUNCTION_BITBCLR;
 292                     g_usb1_function_pipe_status[pipe] = DEVDRV_USBF_PIPE_DONE;
 293                 }
 294                 else
 295                 {
 296                     usb1_function_enable_brdy_int(pipe);
 297                 }
 298             }
 299         }
 300     }
 301 }
 302
 303 /*******************************************************************************
 304 * Function Name: usb1_function_dmaint_buf2fifo
 305 * Description  : Executes write completion in FIFO by DMAC.
 306 * Arguments    : uint16_t pipe      : pipe number
 307 * Return Value : none
 308 *******************************************************************************/
 309 static void usb1_function_dmaint_buf2fifo (uint16_t pipe)
 310 {
 311     uint32_t remain;
 312     uint16_t useport;
 313
 314     useport = (uint16_t)(g_usb1_function_PipeTbl[pipe] & USB_FUNCTION_FIFO_USE);
 315
 316     if (useport == USB_FUNCTION_D0FIFO_DMA)
 317     {
 318         remain = Userdef_USB_usb1_function_stop_dma0();
 319         usb1_function_dma_stop_d0(pipe, remain);
 320
 321         if (g_usb1_function_DmaBval[USB_FUNCTION_D0FIFO] != 0)
 322         {
 323             RZA_IO_RegWrite_16(&USB201.D0FIFOCTR,
 324                                 1,
 325                                 USB_DnFIFOCTR_BVAL_SHIFT,
 326                                 USB_DnFIFOCTR_BVAL);
 327         }
 328     }
 329     else
 330     {
 331         remain = Userdef_USB_usb1_function_stop_dma1();
 332         usb1_function_dma_stop_d1(pipe, remain);
 333
 334         if (g_usb1_function_DmaBval[USB_FUNCTION_D1FIFO] != 0)
 335         {
 336             RZA_IO_RegWrite_16(&USB201.D1FIFOCTR,
 337                                 1,
 338                                 USB_DnFIFOCTR_BVAL_SHIFT,
 339                                 USB_DnFIFOCTR_BVAL);
 340         }
 341     }
 342
 343     usb1_function_enable_bemp_int(pipe);
 344 }
 345
 346 /* End of File */