Modified the DEF read routine (following a diff script from Ahmed
Ghazy) to read pin uses from a DEF file, including the three types that are not defined by the LEF format (go figure). Expanded the bitmask of label flags to include the additional use types. Also shifted the label flag bitmask up to make additional room for more port number, as there is no point in having unused bits in the bitmask.
This commit is contained in:
Tim Edwards
parent
1c82265244
commit
a78b459303
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@ -265,42 +265,46 @@ typedef struct label
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* Label flags bit fields
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*/
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#define PORT_NUM_MASK 0x0fff /* Mask of port number (up to 4096) */
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#define PORT_NUM_MASK 0x003fff /* Mask of port number (up to 16384) */
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#define PORT_DIR_MASK 0xf000 /* Mask of all port directions */
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#define PORT_DIR_NORTH 0x1000 /* Port allows connection to north */
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#define PORT_DIR_EAST 0x2000 /* Port allows connection to east */
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#define PORT_DIR_SOUTH 0x4000 /* Port allows connection to south */
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#define PORT_DIR_WEST 0x8000 /* Port allows connection to west */
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#define PORT_DIR_MASK 0x03c000 /* Mask of all port directions */
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#define PORT_DIR_NORTH 0x004000 /* Port allows connection to north */
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#define PORT_DIR_EAST 0x008000 /* Port allows connection to east */
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#define PORT_DIR_SOUTH 0x010000 /* Port allows connection to south */
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#define PORT_DIR_WEST 0x020000 /* Port allows connection to west */
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#define PORT_CLASS_MASK 0x70000 /* Mask of all port classes */
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#define PORT_CLASS_DEFAULT 0x00000 /* Port takes default class */
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#define PORT_CLASS_INPUT 0x10000 /* Port is a digital input */
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#define PORT_CLASS_OUTPUT 0x20000 /* Port is a digital output */
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#define PORT_CLASS_TRISTATE 0x30000 /* Port is a tri-state output */
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#define PORT_CLASS_BIDIRECTIONAL 0x40000 /* Port is analog or digital */
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/* bidirectional */
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#define PORT_CLASS_FEEDTHROUGH 0x50000 /* Port touches no active */
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/* devices */
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#define PORT_CLASS_MASK 0x1c0000 /* Mask of all port classes */
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#define PORT_CLASS_DEFAULT 0x000000 /* Port takes default class */
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#define PORT_CLASS_INPUT 0x040000 /* Port is a digital input */
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#define PORT_CLASS_OUTPUT 0x080000 /* Port is a digital output */
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#define PORT_CLASS_TRISTATE 0x0c0000 /* Port is a tri-state output */
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#define PORT_CLASS_BIDIRECTIONAL 0x100000 /* Port is analog or digital */
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/* bidirectional */
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#define PORT_CLASS_FEEDTHROUGH 0x140000 /* Port touches no active */
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/* devices */
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#define PORT_USE_MASK 0x0700000 /* Mask of all port uses */
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#define PORT_USE_DEFAULT 0x0000000 /* Port takes default use */
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#define PORT_USE_SIGNAL 0x0100000 /* Port is a digital signal */
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#define PORT_USE_ANALOG 0x0200000 /* Port is an analog signal */
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#define PORT_USE_POWER 0x0300000 /* Port is a power rail */
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#define PORT_USE_GROUND 0x0400000 /* Port is a ground rail */
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#define PORT_USE_CLOCK 0x0500000 /* Port is a digital clock */
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/* signal */
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#define PORT_SHAPE_MASK 0x1800000 /* Mask of all port shapes */
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#define PORT_SHAPE_DEFAULT 0x0000000 /* Port takes default shape */
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#define PORT_SHAPE_ABUT 0x0800000 /* Port is an abutment shape */
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#define PORT_SHAPE_RING 0x1000000 /* Port is a ring shape */
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#define PORT_SHAPE_THRU 0x1800000 /* Port is a feedthrough shape */
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#define PORT_VISITED 0x2000000 /* Bit for checking if a port */
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#define PORT_USE_MASK 0x03c00000 /* Mask of all port uses */
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#define PORT_USE_DEFAULT 0x00000000 /* Port takes default use */
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#define PORT_USE_SIGNAL 0x00400000 /* Port is a digital signal */
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#define PORT_USE_ANALOG 0x00800000 /* Port is an analog signal */
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#define PORT_USE_POWER 0x00c00000 /* Port is a power rail */
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#define PORT_USE_GROUND 0x01000000 /* Port is a ground rail */
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#define PORT_USE_CLOCK 0x01400000 /* Port is a digital clock */
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#define PORT_USE_RESET 0x01800000 /* Port is a digital reset */
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#define PORT_USE_SCAN 0x01c00000 /* Port is a digital scan */
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#define PORT_USE_TIEOFF 0x02000000 /* Port is a tie-off */
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#define PORT_SHAPE_MASK 0x0c000000 /* Mask of all port shapes */
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#define PORT_SHAPE_DEFAULT 0x00000000 /* Port takes default shape */
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#define PORT_SHAPE_ABUT 0x04000000 /* Port is an abutment shape */
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#define PORT_SHAPE_RING 0x08000000 /* Port is a ring shape */
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#define PORT_SHAPE_THRU 0x0c000000 /* Port is a feedthrough shape */
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#define PORT_VISITED 0x10000000 /* Bit for checking if a port */
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/* has been previously visited. */
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#define LABEL_STICKY 0x4000000 /* Label does not change layers */
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#define LABEL_GENERATE 0x8000000 /* Auto-generated label */
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#define LABEL_STICKY 0x20000000 /* Label does not change layers */
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#define LABEL_GENERATE 0x40000000 /* Auto-generated label */
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/*
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* Macros for dealing with label rectangles.
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@ -942,6 +942,7 @@ DefReadPins(f, rootDef, sname, oscale, total)
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int keyword, subkey, values, flags;
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int processed = 0;
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int pinDir = PORT_CLASS_DEFAULT;
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int pinUse = PORT_USE_DEFAULT;
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int pinNum = 0;
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TileType curlayer = -1;
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Rect *currect, topRect;
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@ -978,6 +979,19 @@ DefReadPins(f, rootDef, sname, oscale, total)
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NULL
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};
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static char *pin_uses[] = {
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"DEFAULT",
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"SIGNAL",
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"POWER",
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"GROUND",
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"CLOCK",
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"RESET",
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"ANALOG",
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"SCAN",
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"TIEOFF",
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NULL
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};
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static int lef_class_to_bitmask[] = {
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PORT_CLASS_DEFAULT,
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PORT_CLASS_INPUT,
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@ -987,6 +1001,20 @@ DefReadPins(f, rootDef, sname, oscale, total)
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PORT_CLASS_FEEDTHROUGH
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};
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static int lef_use_to_bitmask[] = {
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PORT_USE_DEFAULT,
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PORT_USE_SIGNAL,
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PORT_USE_POWER,
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PORT_USE_GROUND,
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PORT_USE_CLOCK,
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PORT_USE_RESET,
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PORT_USE_ANALOG,
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PORT_USE_SCAN,
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PORT_USE_TIEOFF
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};
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flags = 0;
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while ((token = LefNextToken(f, TRUE)) != NULL)
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{
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keyword = Lookup(token, pin_keys);
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@ -1058,6 +1086,13 @@ DefReadPins(f, rootDef, sname, oscale, total)
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hasports = TRUE;
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break;
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case DEF_PINS_PROP_USE:
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token = LefNextToken(f, TRUE);
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subkey = Lookup(token, pin_uses);
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if (subkey < 0)
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LefError(DEF_ERROR, "Unknown pin use \"%s\"\n", token);
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else
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pinUse = lef_use_to_bitmask[subkey];
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break;
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case DEF_PINS_PROP_NET:
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/* Get the net name, but ignore it */
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token = LefNextToken(f, TRUE);
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@ -1066,7 +1101,7 @@ DefReadPins(f, rootDef, sname, oscale, total)
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token = LefNextToken(f, TRUE);
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subkey = Lookup(token, pin_classes);
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if (subkey < 0)
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LefError(DEF_ERROR, "Unknown pin class\n");
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LefError(DEF_ERROR, "Unknown pin class \"%s\"\n", token);
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else
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pinDir = lef_class_to_bitmask[subkey];
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break;
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@ -1086,7 +1121,7 @@ DefReadPins(f, rootDef, sname, oscale, total)
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GeoTransRect(&t, currect, &topRect);
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DBPaint(rootDef, &topRect, curlayer);
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DBPutLabel(rootDef, &topRect, -1, pinname, curlayer,
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pinNum | pinDir | flags);
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pinNum | pinDir | pinUse | flags);
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pending = FALSE;
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pinNum++;
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}
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@ -1109,7 +1144,7 @@ DefReadPins(f, rootDef, sname, oscale, total)
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GeoTransRect(&t, currect, &topRect);
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DBPaint(rootDef, &topRect, curlayer);
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DBPutLabel(rootDef, &topRect, -1, pinname, curlayer,
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pinNum | pinDir | flags);
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pinNum | pinDir | pinUse | flags);
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pinNum++;
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}
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break;
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