2022-05-23 20:45:37 -05:00
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/*
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* $Id: custom_led.c$
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* $Copyright: (c) 2019 Broadcom
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* Broadcom Proprietary and Confidential. All rights reserved.$
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*/
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/******************************************************************************
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CMICX LED Interface has two RAM Banks, as shown below, Bank0(ACCUMULATION RAM)
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for accumulation of status from ports and Bank1(PATTERN RAM) for writing
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LED pattern. Both Bank0 and Bank1 are of 1024x16-bit, each row representing
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one port.
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ACCUMULATION RAM (Bank 0) Pattern RAM (Bank1)
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15 0 15 0
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------------------------------ -----------------------------
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Row 0 | Port1 status | | Port1 LED Pattern |
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------------------------------ -----------------------------
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Row 1 | Port2 status | | Port2 LED Pattern |
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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Row 127 | Port128 status | | Port128 LED Pattern |
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------------------------------ -----------------------------
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Row 128 | | | |
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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Row x | Port(x+1) status | | Port(x+1) LED Pattern |
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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------------------------------ -----------------------------
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Row 1022| Port1023 status | | Port1023 LED Pattern |
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------------------------------ -----------------------------
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Row 1023| Port1024 status | | Port1024 LED Pattern |
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------------------------------ -----------------------------
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Format of Accumulation RAM:
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Bits 15:9 8 7 6 5 4:3 2 1 0
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------------------------------------------------------------------------
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| Reserved | Link | Link Up | Flow | Duplex | Speed | Col | Tx | Rx |
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| | Enable| Status | Control| | | | | |
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------------------------------------------------------------------------
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The custom handler in this file should read port status, for each port used,
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from accumulation ram, and form required LED bit pattern in the Bank1 RAM
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(pattern RAM) location corresponding to the port of interest. Note that
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physical port numbers may differ from row number of LED RAM Banks. For
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Trident3, Physical port numbers spread from 1 to 128 in 128x25G configuration
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and corresponding LED rows spread from Row 0 to Row 127.
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There are five LED interfaces in CMICX based devices. Although single
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interface can be used to output LED pattern for all ports, it is possible
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that more than one interface can be used in the end system, e.g., LEDs for
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some ports are connected to one LED interface-0 (i.e LED_CLK and LED_DATA),
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while the rest of the ports are connected to LED interface-1. Accordingly,
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custom handler MUST fill in start port, end port and width of pattern in the
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soc_led_custom_handler_ctrl_t structure passsed to custom handler. The
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example custom handler provided in this file has reference code for forming
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two different LED patterns. Please refer to these patterns before writing your
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own custom handler code.
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The soc_led_custom_handler_ctrl_t structure definition is available in
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$SDK/include/shared/cmicfw/cmicx_led_public.h
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soc_led_custom_handler_ctrl_t structure also carries a point to array
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port_speed[] of size equal to maximum ports in the system, e.g 128 in Trident3.
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This array would have port speed for each port, as per bit mapping defined in
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"soc_led_speed_t" in $SDK/include/shared/cmicfw/cmicx_led_public.h file.
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Here is an exception, please keep in mind:
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1. For TH3, port status/speed of xe1 (physical port 258) is located in the
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accumulation entry/speed array of physical port 259.
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******************************************************************************/
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#include <shared/cmicfw/cmicx_led_public.h>
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#define ACTIVITY_TICKS 2
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#define READ_LED_ACCU_DATA(base, port) (*((uint16 *)(base + ((port - 1) * sizeof(uint32)))))
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#define WRITE_LED_SEND_DATA(base, port, val) (*((uint16 *)(base + ((port - 1) * sizeof(uint32)))) = val)
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#define PORT_NUM_TOTAL 56
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#define LED_GREEN_BICOLOR 0x2 //bit : 10
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#define LED_AMBER_BICOLOR 0x1 //bit : 01
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#define LED_OFF_BICOLOR 0x3 //bit : 11
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unsigned short portmap[] = {
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25, 26, 27, 28, 29, 30, 31, 32,
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33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 49, 50, 51, 52,
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1, 2, 3, 4, 5, 6, 7, 8,
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9, 10, 11, 12, 24, 23, 22, 21,
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20, 19, 18, 17, 16, 15, 14, 13,
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2023-03-27 12:16:16 -05:00
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60, 58, 59, 57, 62, 64, 61, 63
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2022-05-23 20:45:37 -05:00
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};
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/*
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* Function:
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* custom_led_handler
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* Purpose:
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* Timer event handler to accumulate, process and transmit led status
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* Parameters:
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* param - parameter added while registering the timer event.
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* Returns:
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* 0 on success
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* Error code on failure
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*/
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void custom_led_handler(soc_led_custom_handler_ctrl_t *ctrl,
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uint32 activity_count)
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{
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unsigned short accu_val = 0, send_val = 0;
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unsigned short port, physical_port;
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/* Physical port numbers to be used */
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for(port = 1; port <= PORT_NUM_TOTAL; port++) {
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physical_port = portmap[port-1];
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/* Read value from led_ram bank0 */
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accu_val = READ_LED_ACCU_DATA(ctrl->accu_ram_base, physical_port);
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send_val = 0xff;
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if (((accu_val & LED_OUTPUT_RX) || (accu_val & LED_OUTPUT_TX)) && (activity_count & ACTIVITY_TICKS))
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{
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send_val = LED_OFF_BICOLOR;
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}
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else if ( accu_val & LED_OUTPUT_LINK_UP)
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{
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send_val = LED_GREEN_BICOLOR;
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}
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else
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{
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send_val = LED_OFF_BICOLOR;
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}
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/* Write value to led_ram bank1 */
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WRITE_LED_SEND_DATA(ctrl->pat_ram_base, port, send_val);
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} /* for */
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/* Send the pattern over LED interface 1 for ports 1 - 56*/
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ctrl->intf_ctrl[1].valid = 1;
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ctrl->intf_ctrl[1].start_row = 0;
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ctrl->intf_ctrl[1].end_row = 55;
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ctrl->intf_ctrl[1].pat_width = 2;
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/* Invalidate rest of the interfaces */
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ctrl->intf_ctrl[0].valid = 0;
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ctrl->intf_ctrl[2].valid = 0;
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ctrl->intf_ctrl[3].valid = 0;
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ctrl->intf_ctrl[4].valid = 0;
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return;
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}
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