X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Factual_pinmux.py;h=ff6902af01399afefb559eb409c52687d0397d34;hb=11afcc66f875bfcf10642f8bab3812bfcf56e6d2;hp=fe16198e9afce110f65151beef3bcd59b05f956b;hpb=0833e8dea0960ef399dbe26c687d15f2da598f88;p=pinmux.git

diff --git a/src/actual_pinmux.py b/src/actual_pinmux.py
index fe16198..ff6902a 100644
--- a/src/actual_pinmux.py
+++ b/src/actual_pinmux.py
@@ -1,64 +1,95 @@
-from params import *
+from parse import *
 from string import digits
+try:
+    from string import maketrans
+except ImportError:
+    maketrans = str.maketrans
 
 
-## dictionary of properties of signals that are supported.
-dictionary={
-	"uart_rx":"input",
-	"uart_tx":"output",
-	"spi_sclk":"output",
-	"spi_mosi":"output",
-	"spi_ss": "output",
-	"spi_miso":"input"
+# dictionary of properties of signals that are supported.
+dictionary = {
+    "uart_rx"	: "input",
+    "uart_tx"	: "output",
+    "spi_sclk"	: "output",
+    "spi_mosi"	: "output",
+    "spi_ss"	: "output",
+    "spi_miso"	: "input",
+    "twi_sda"	: "inout",
+    "twi_scl"	: "inout",
+    "sd_clk": "output",
+    "sd_cmd": "output",
+    "sd_d": "inout",
+    "pwm": "output"
 }
-	
 
-########### common bsv templates ############
-assign_cell='''cell{0}_out=wrmux{0}=={1}?'''
-# first argument is the io-cell number being assigned. 
-# second argument is the mux value. 
+
+# ============== common bsv templates ============ #
+# first argument is the io-cell number being assigned.
+# second argument is the mux value.
 # Third argument is the signal from the pinmap file
-input_wire='''		
-		rule assign_input_for_{2}(wrmux{0}=={1});
-			wr{2}<=cell{0}_in;
-		endrule
+mux_wire = '''
+      rule assign_{2}_on_cell{0}(wrmux{0}=={1});
+        {2}<=cell{0}_in;
+      endrule
+'''
+dedicated_wire = '''
+      rule assign_{1}_on_cell{0};
+        {1}<=cell{0}_in;
+      endrule
 '''
-#########################################
-pinmux=''' '''
-pinmap_file=open("./pinmap.txt","r")
-for lineno,line in enumerate(pinmap_file):
-	line1=line.split()
-	if(lineno>0):
-		if(lineno>N_IO):
-			print"ERROR: Parameter N_IO("+str(N_IO)+") is less than the pin number in line: "+str(lineno)+" of pinmap.txt"
-			exit(1)
-		######## Mux each generic IO cell with the mapping######
-		# provided in the pinmap file
-		pinmux=pinmux+"		cell"+str(line1[0])+"_out="
-		i=0
-		while(i<len(line1)-1):
-			pinmux=pinmux+"wrmux"+str(line1[0])+"=="+str(i)+"?"+line1[i+1]+"_io:"
-			if(i+2==len(line1)-1):
-				pinmux=pinmux+line1[i+2]+"_io"
-				i=i+2
-			else:
-				i=i+1
-		pinmux=pinmux+";\n"
-		########################################################
+# ============================================================
+pinmux = ''' '''
+digits = maketrans('0123456789', ' '*10) # delete space later
+
+for cell in muxed_cells:
+    pinmux = pinmux + "      cell" + str(cell[0]) + "_out="
+    i = 0
+    while(i < len(cell) - 1):
+        pinmux = pinmux + "wrmux" + \
+            str(cell[0]) + "==" + str(i) + "?" + cell[i + 1] + "_io:"
+        if(i + 2 == len(cell) - 1):
+            pinmux = pinmux + cell[i + 2] + "_io"
+            i = i + 2
+        else:
+            i = i + 1
+    pinmux = pinmux + ";\n"
+    # ======================================================== #
 
-		###### check each cell if "peripheral input/inout" then assign its wire ########
-		## Here we check the direction of each signal in the dictionary. 
-		## We choose to keep the dictionary within the code and not user-input 
-		## since the interfaces are always standard and cannot change from user-to-user
-		## plus reduces human-error as well :)
-		for i in range(0,len(line1)-1):
-			temp=line1[i+1].translate(None,digits)
-			x=dictionary.get(temp);
-			if(x==None):
-				print "Error: The signal : "+str(line1[i+1])+" in lineno: "+str(lineno)+"of pinmap.txt is not present in the current dictionary.\nSoln: Either update the dictionary or fix typo."
-				exit(1)
-			if(x=="input"):
-				pinmux=pinmux+input_wire.format(line1[0],i,line1[i+1])+"\n"
-		################################################################################
-###########################################
+    # check each cell if "peripheral input/inout" then assign its wire
+    # Here we check the direction of each signal in the dictionary.
+    # We choose to keep the dictionary within the code and not user-input
+    # since the interfaces are always standard and cannot change from
+    # user-to-user. Plus this also reduces human-error as well :)
+    for i in range(0, len(cell) - 1):
+        temp = cell[i + 1].translate(digits)
+        temp = temp.replace(' ', '')
+        x = dictionary.get(temp)
+        if(x is None):
+            print(
+              "ERROR: The signal : " +
+              str(cell[i + 1]) +
+              " of pinmap.txt isn't present in the current dictionary.\
+              \nUpdate dictionary or fix-typo.")
+            exit(1)
+        if(x == "input"):
+            pinmux = pinmux + \
+              mux_wire.format(cell[0], i, "wr" + cell[i + 1]) + "\n"
+        elif(x == "inout"):
+            pinmux = pinmux + \
+                mux_wire.format(cell[0], i, "wr" + cell[i + 1] +
+                                            "_in") + "\n"
+# ============================================================ #
 
+# ==================  Logic for dedicated pins ========= #
+for cell in dedicated_cells:
+    pinmux = pinmux + "      cell" + \
+        str(cell[0]) + "_out=" + cell[1] + "_io;\n"
+    temp = cell[1].translate(digits)
+    x = dictionary.get(temp)
+    if(x == "input"):
+        pinmux = pinmux + \
+            dedicated_wire.format(cell[0], "wr" + cell[1]) + "\n"
+    elif(x == "inout"):
+        pinmux = pinmux + \
+            dedicated_wire.format(cell[0], "wr" + cell[1] + "_in") + "\n"
+# =======================================================#