Changeset 592 for trunk/modules/vci_spi

Timestamp:

Dec 5, 2013, 5:15:26 PM (11 years ago)

Author:

bouyer

Message:

• report DMA errors
• minor changes to sync with the VHDL model

Location:

trunk/modules/vci_spi

Files:

• caba/source/src/vci_spi.cpp (modified) (5 diffs)
• include/soclib/vcispi.h (modified) (1 diff)

trunk/modules/vci_spi/caba/source/src/vci_spi.cpp

@@ -161 +161 @@
                     if (s_dma_bsy) 
                         data |= SPI_CTRL_DMA_BSY;
+                    if (r_dma_error) 
+                        data |= SPI_CTRL_DMA_ERR;
                     data |= (uint32_t)r_ctrl_char_len.read();
                     r_rdata = data;
@@ -256 +258 @@
         r_spi_clk_ignore = r_ctrl_cpha;
         r_spi_bit_count = r_ctrl_char_len;
-        r_spi_out = (r_txrx[(r_ctrl_char_len -1)/ 64] >> ((r_ctrl_char_len - 1) % 64)) & (uint64_t)0x0000000000000001ULL;
         if (r_dma_count != 0) {
                 if (r_read.read())
@@ -264 +265 @@
         } else if (r_spi_bsy.read() && !r_spi_done.read()) {
             r_spi_fsm = S_XMIT;
+            r_spi_out = (r_txrx[(r_ctrl_char_len -1)/ 64] >> ((r_ctrl_char_len - 1) % 64)) & (uint64_t)0x0000000000000001ULL;
         }
         break;
@@ -294 +296 @@
     case S_DMA_SEND:
         r_spi_out = 1;
-        r_txrx[0] = 0xffffffff;
         r_spi_clk_counter = r_divider.read();
         r_spi_clk = 0;
@@ -305 +306 @@
                     (typename vci_param::data_t)r_txrx[0]);
                 r_spi_word_count = r_spi_word_count - 1;
+                r_txrx[0] = 0xffffffff;
                 if ( r_spi_word_count == 0 ) {
                     r_spi_fsm = S_DMA_SEND_END;

trunk/modules/vci_spi/include/soclib/vcispi.h

@@ -41 +41 @@
 };
 
+#define SPI_CTRL_DMA_ERR        (1 << 17) /* R   DMA error                    */
 #define SPI_CTRL_DMA_BSY        (1 << 16) /* R   DMA in progress              */
 #define SPI_CTRL_CPOL           (1 << 15) /* R/W Clock polarity               */