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- added Axiom AXM-0432 to texi
[openocd.git] / src / jtag / ft2232.c
diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c
index 6754d9aad8e8c8873e6edc0f145f2ddc7ffff3af..b0c1c35c72af84f310981147acf896061c651f0a 100644 (file)
--- a/src/jtag/ft2232.c
+++ b/src/jtag/ft2232.c
@@ -102,6 +102,7 @@ int flyswatter_init(void);
 int turtle_init(void);
 int comstick_init(void);
 int stm32stick_init(void);
+int axm0432_jtag_init(void);
 
 /* reset procedures for supported layouts */
 void usbjtag_reset(int trst, int srst);
@@ -111,6 +112,7 @@ void flyswatter_reset(int trst, int srst);
 void turtle_reset(int trst, int srst);
 void comstick_reset(int trst, int srst);
 void stm32stick_reset(int trst, int srst);
+void axm0432_jtag_reset(int trst, int srst);
 
 /* blink procedures for layouts that support a blinking led */
 void olimex_jtag_blink(void);
@@ -129,6 +131,7 @@ ft2232_layout_t ft2232_layouts[] =
        {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
        {"comstick", comstick_init, comstick_reset, NULL},
        {"stm32stick", stm32stick_init, stm32stick_reset, NULL},
+       {"axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL},
        {NULL, NULL, NULL},
 };
 
@@ -316,15 +319,15 @@ int ft2232_khz(int khz, int *jtag_speed)
 int ft2232_register_commands(struct command_context_s *cmd_ctx)
 {
        register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
-               COMMAND_CONFIG, NULL);
+               COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
        register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
-               COMMAND_CONFIG, NULL);
+               COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
        register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
-               COMMAND_CONFIG, NULL);
+               COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
        register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
-                                        COMMAND_CONFIG, NULL);
+                                        COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
        register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
-                                        COMMAND_CONFIG, NULL);
+                                        COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
        return ERROR_OK;
 }
 
@@ -1045,6 +1048,34 @@ void olimex_jtag_reset(int trst, int srst)
        LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
 }
 
+void axm0432_jtag_reset(int trst, int srst)
+{
+       if (trst == 1)
+       {
+               cur_state = TAP_TLR;
+               high_output &= ~nTRST;
+       }
+       else if (trst == 0)
+       {
+               high_output |= nTRST;
+       }
+
+       if (srst == 1)
+       {
+               high_output &= ~nSRST;
+       }
+       else if (srst == 0)
+       {
+               high_output |= nSRST;
+       }
+
+       /* command "set data bits low byte" */
+       BUFFER_ADD = 0x82;
+       BUFFER_ADD = high_output;
+       BUFFER_ADD = high_direction;
+       LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+}
+
 void flyswatter_reset(int trst, int srst)
 {
        if (trst == 1)
@@ -1378,15 +1409,13 @@ static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
        char *openex_string = NULL;
        u8 latency_timer;
 
-       LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
-           ft2232_layout, vid, pid);
+       LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",ft2232_layout, vid, pid);
 
 #if IS_WIN32 == 0
        /* Add non-standard Vid/Pid to the linux driver */
        if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
        {
-               LOG_WARNING("couldn't add %4.4x:%4.4x",
-                   vid, pid);
+               LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
        }
 #endif
 
@@ -1419,8 +1448,7 @@ static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
                DWORD num_devices;
                
                if (more) {
-                       LOG_WARNING("unable to open ftdi device (trying more): %lu",
-                           status);
+                       LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
                        *try_more = 1;
                        return ERROR_JTAG_INIT_FAILED;
                }
@@ -1722,6 +1750,75 @@ int usbjtag_init(void)
        return ERROR_OK;
 }
 
+int axm0432_jtag_init(void)
+{
+       u8 buf[3];
+       u32 bytes_written;
+       
+       low_output = 0x08;
+       low_direction = 0x2b;
+       
+       /* initialize low byte for jtag */
+       buf[0] = 0x80; /* command "set data bits low byte" */
+       buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
+       buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
+       LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+       
+       if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+       {
+               LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout"); 
+               return ERROR_JTAG_INIT_FAILED;
+       }
+
+       if (strcmp(layout->name, "axm0432_jtag") == 0)
+       {
+               nTRST = 0x08;
+               nTRSTnOE = 0x0;  /* No output enable for TRST*/
+               nSRST = 0x04;
+               nSRSTnOE = 0x0;  /* No output enable for SRST*/ 
+       }
+       else
+       {
+               LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
+               exit(-1);
+       }
+       
+       high_output = 0x0;
+       high_direction = 0x0c;
+
+       if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+       {
+               LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
+       }
+       else
+       {
+               high_output |= nTRST;
+       }
+
+       if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+       {
+               LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
+       }
+       else
+       {
+               high_output |= nSRST;
+       }
+       
+       /* initialize high port */
+       buf[0] = 0x82; /* command "set data bits high byte" */
+       buf[1] = high_output; /* value */
+       buf[2] = high_direction;   /* all outputs (xRST and xRSTnOE) */
+       LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+       
+       if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+       {
+               LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout"); 
+               return ERROR_JTAG_INIT_FAILED;
+       }
+       
+       return ERROR_OK;
+}
+
 int jtagkey_init(void)
 {
        u8 buf[3];
@@ -1936,7 +2033,7 @@ int turtle_init(void)
        }
        
        nSRST = 0x40;
-       
+       
        high_output = 0x00;
        high_direction = 0x0C;
        
@@ -1979,7 +2076,7 @@ int comstick_init(void)
        nTRSTnOE = 0x00; /* no output enable for nTRST */
        nSRST = 0x02;
        nSRSTnOE = 0x00; /* no output enable for nSRST */
-       
+       
        high_output = 0x03;
        high_direction = 0x03;
        
@@ -2022,7 +2119,7 @@ int stm32stick_init(void)
        nTRSTnOE = 0x00; /* no output enable for nTRST */
        nSRST = 0x80;
        nSRSTnOE = 0x00; /* no output enable for nSRST */
-       
+       
        high_output = 0x01;
        high_direction = 0x03;
        
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