sdk56626.asm (4932B)
1 ; 2 ; 3 ; 4 ; This license is set out in https://raw.githubusercontent.com/Broadcom-Network-Switching-Software/OpenBCM/master/Legal/LICENSE file. 5 ; 6 ; Copyright 2007-2019 Broadcom Inc. All rights reserved. 7 ; 8 ; 9 ; This is the default program for the (25 GE + 6 XE/HG port) BCM56626 SDKs. 10 ; To start it, use the following commands from BCM: 11 ; 12 ; led load sdk56626.hex 13 ; led auto on 14 ; led start 15 ; 16 ; The is 1 LEDs per XE port. 17 ; 18 ; There is one bit per 10 gigabit Ethernet LED with the following colors: 19 ; ONE Black 20 ; ZERO Green 21 ; 22 ; Each chip drives only its own LEDs and needs to write them in the order: 23 ; A01/L01, L02/A02, ..., L06/A06 24 ; 25 ; Link up/down info cannot be derived from LINKEN or LINKUP, as the LED 26 ; processor does not always have access to link status. This program 27 ; assumes link status is kept current in bit 0 of RAM byte (0xA0 + portnum). 28 ; Generally, a program running on the main CPU must update these 29 ; locations on link change; see linkscan callback in 30 ; $SDK/src/appl/diag/ledproc.c. 31 ; 32 ; Current implementation: 33 ; 34 ; L01/A01 reflects port 1 link status: 35 ; Black: no link 36 ; Green: Link/Activity 37 ; 38 ; 39 MAX_XE_PORT EQU 31 40 41 NUM_PORT EQU 8 42 43 ; Device ports 44 ; 26 xe0 45 ; 27 xe1 46 ; 28 xe2 47 ; 29 xe3 48 ; 30 xe4 49 ; 31 xe5 50 51 PORT_XE0 EQU 26 52 PORT_XE1 EQU 27 53 PORT_XE2 EQU 28 54 PORT_XE3 EQU 29 55 PORT_XE4 EQU 30 56 PORT_XE5 EQU 31 57 58 ; The TX/RX activity lights will be extended for ACT_EXT_TICKS 59 ; so they will be more visible. 60 TICKS EQU 1 61 SECOND_TICKS EQU (30*TICKS) 62 ACT_EXT_TICKS EQU (SECOND_TICKS/3) 63 TXRX_ALT_TICKS EQU (SECOND_TICKS/6) 64 65 ; 66 ; Main Update Routine 67 ; 68 ; This routine is called once per tick. 69 ; 70 update: 71 ld a, PORT_XE0 72 port a 73 call link_activity ; Off if no link 74 75 ld a, PORT_XE1 76 port a 77 call link_activity ; Off if no link 78 79 ld a, PORT_XE2 80 port a 81 call link_activity ; Off if no link 82 83 ld a, PORT_XE3 84 port a 85 call link_activity ; Off if no link 86 87 ld a, PORT_XE4 88 port a 89 call link_activity ; Off if no link 90 91 ld a, PORT_XE5 92 port a 93 call link_activity ; Off if no link 94 95 ; Update various timers 96 inc (TXRX_ALT_COUNT) 97 98 send NUM_PORT * 1 99 100 ; 101 ; link_activity 102 ; 103 ; This routine calculates the activity LED for the current port. 104 ; It extends the activity lights using timers (new activity overrides 105 ; and resets the timers). 106 ; 107 ; Inputs: (PORT_NUM) 108 ; Outputs: one bit sent to LED stream 109 ; 110 111 link_activity: 112 ;jmp led_green ;DEBUG ONLY 113 call get_link 114 jnc led_black 115 port a 116 pushst RX 117 pushst TX 118 tor 119 pop 120 121 jnc led_green ; Always green Link up, No Activity 122 123 ;jmp led_green ;DEBUG ONLY 124 125 ld b, (TXRX_ALT_COUNT) 126 and b, TXRX_ALT_TICKS 127 jnz led_green 128 jmp led_black 129 130 link_status: 131 ;jmp led_black ;DEBUG ONLY 132 call get_link 133 jnc led_black 134 jmp led_green 135 136 ; 137 ; get_link 138 ; 139 ; This routine finds the link status LED for a port. 140 ; Link info is in bit 0 of the byte read from PORTDATA[port] 141 ; 142 ; Inputs: Port number in a 143 ; Outputs: Carry flag set if link is up, clear if link is down. 144 ; Destroys: a, b 145 ; 146 147 get_link: 148 ld b,PORTDATA 149 add b,a 150 ld b,(b) 151 tst b,0 152 ret 153 154 ; 155 ; led_black, led_green 156 ; 157 ; Inputs: None 158 ; Outputs: one bit to the LED stream indicating color 159 ; Destroys: None 160 ; 161 162 led_black: 163 pushst ONE 164 pack 165 ret 166 167 led_green: 168 pushst ZERO 169 pack 170 ret 171 172 ; 173 ; Variables (SDK software initializes LED memory from 0xa0-0xff to 0) 174 ; 175 176 TXRX_ALT_COUNT equ 0xe0 177 PORT_NUM equ 0xe1 178 179 ; 180 ; Port data, which must be updated continually by main CPU's 181 ; linkscan task. See $SDK/src/appl/diag/ledproc.c for examples. 182 ; In this program, bit 0 is assumed to contain the link up/down status. 183 ; 184 185 ;Offset 0x1e00 - 0x80 186 ;LED scan chain assembly area 187 188 ;Offset 0x1e80 - 0xa0 189 PORTDATA equ 0xa0 ; Size 48 + 1 + 4 bytes 190 191 ; 192 ; Symbolic names for the bits of the port status fields 193 ; 194 195 RX equ 0x0 ; received packet 196 TX equ 0x1 ; transmitted packet 197 COLL equ 0x2 ; collision indicator 198 SPEED_C equ 0x3 ; 100 Mbps 199 SPEED_M equ 0x4 ; 1000 Mbps 200 DUPLEX equ 0x5 ; half/full duplex 201 FLOW equ 0x6 ; flow control capable 202 LINKUP equ 0x7 ; link down/up status 203 LINKEN equ 0x8 ; link disabled/enabled status 204 ZERO equ 0xE ; always 0 205 ONE equ 0xF ; always 1