136 lines
3.6 KiB
Tcl
136 lines
3.6 KiB
Tcl
# the DBGU and USARTs are 'almost' indentical'
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set DBGU_CR [expr $AT91C_BASE_DBGU + 0x00000000]
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set DBGU_MR [expr $AT91C_BASE_DBGU + 0x00000004]
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set DBGU_IER [expr $AT91C_BASE_DBGU + 0x00000008]
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set DBGU_IDR [expr $AT91C_BASE_DBGU + 0x0000000C]
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set DBGU_IMR [expr $AT91C_BASE_DBGU + 0x00000010]
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set DBGU_CSR [expr $AT91C_BASE_DBGU + 0x00000014]
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set DBGU_RHR [expr $AT91C_BASE_DBGU + 0x00000018]
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set DBGU_THR [expr $AT91C_BASE_DBGU + 0x0000001C]
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set DBGU_BRGR [expr $AT91C_BASE_DBGU + 0x00000020]
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# no RTOR
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# no TTGR
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# no FIDI
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# no NER
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set DBGU_CIDR [expr $AT91C_BASE_DBGU + 0x00000040]
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set DBGU_EXID [expr $AT91C_BASE_DBGU + 0x00000044]
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set DBGU_FNTR [expr $AT91C_BASE_DBGU + 0x00000048]
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set USx_CR 0x00000000
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set USx_MR 0x00000004
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set USx_IER 0x00000008
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set USx_IDR 0x0000000C
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set USx_IMR 0x00000010
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set USx_CSR 0x00000014
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set USx_RHR 0x00000018
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set USx_THR 0x0000001C
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set USx_BRGR 0x00000020
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set USx_RTOR 0x00000024
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set USx_TTGR 0x00000028
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set USx_FIDI 0x00000040
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set USx_NER 0x00000044
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set USx_IF 0x0000004C
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# Create all the uarts that exist..
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# we blow up if there are >9
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proc show_mmr_USx_MR_helper { NAME ADDR VAL } {
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# First - just print it
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set x [show_normalize_bitfield $VAL 3 0]
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if { $x == 0 } {
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echo "\tNormal operation"
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} else {
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echo [format "\tNon Normal operation mode: 0x%02x" $x]
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}
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set x [show_normalize_bitfield $VAL 11 9]
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set s "unknown"
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switch -exact $x {
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0 { set s "Even" }
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1 { set s "Odd" }
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2 { set s "Force=0" }
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3 { set s "Force=1" }
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* {
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set $x [expr $x & 6]
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switch -exact $x {
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4 { set s "None" }
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6 { set s "Multidrop Mode" }
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}
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}
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}
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echo [format "\tParity: %s " $s]
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set x [expr 5 + [show_normalize_bitfield $VAL 7 6]]
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echo [format "\tDatabits: %d" $x]
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set x [show_normalize_bitfield $VAL 13 12]
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switch -exact $x {
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0 { echo "\tStop bits: 1" }
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1 { echo "\tStop bits: 1.5" }
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2 { echo "\tStop bits: 2" }
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3 { echo "\tStop bits: Illegal/Reserved" }
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}
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}
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# For every possbile usart...
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foreach WHO { US0 US1 US2 US3 US4 US5 US6 US7 US8 US9 } {
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set n AT91C_BASE_[set WHO]
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set str ""
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# Only if it exists on the chip
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if [ info exists $n ] {
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# Hence: $n - is like AT91C_BASE_USx
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# For every sub-register
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foreach REG {CR MR IER IDR IMR CSR RHR THR BRGR RTOR TTGR FIDI NER IF} {
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# vn = variable name
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set vn [set WHO]_[set REG]
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# vn = USx_IER
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# vv = variable value
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set vv [expr $$n + [set USx_[set REG]]]
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# And VV is the address in memory of that register
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# make that VN a GLOBAL so others can find it
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global $vn
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set $vn $vv
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# Create a command for this specific register.
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proc show_$vn { } "show_mmr32_reg $vn"
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# Add this command to the Device(as a whole) command
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set str "$str\nshow_$vn"
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}
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# Now - create the DEVICE(as a whole) command
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set fn show_$WHO
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proc $fn { } $str
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}
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}
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# The Debug Uart is special..
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set str ""
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# For every sub-register
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foreach REG {DBGU_CR DBGU_MR DBGU_IER DBGU_IDR DBGU_IMR
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DBGU_CSR DBGU_RHR DBGU_THR DBGU_BRGR DBGU_CIDR DBGU_EXID DBGU_FNTR} {
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# Create a command for this specific register.
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proc show_$REG { } "show_mmr32_reg $REG"
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# Add this command to the Device(as a whole) command
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set str "$str\nshow_$REG"
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}
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# Now - create the DEVICE(as a whole) command
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proc show_DBGU { } $str
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unset str
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proc show_DBGU_MR_helper { NAME ADDR VAL } { show_mmr_USx_MR_helper $NAME $ADDR $VAL }
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