mirror of
https://github.com/logicog/RTLPlayground.git
synced 2026-08-30 14:52:51 +08:00
diijkstra
7d62b24a42
RTL has up to 3 SCL pins and up to 4 SDA pins. Lets allow configuring I2C with individual BUS numbers instead of 0/1 I2C. This enables support for devices where SCL line is not shared between SFP modules. MUX registry is now initialized depending on needed pin function. More over, some SFP pins require special MUX settings, lets initialize those depending on SFP configuration. This adds TX Disable pin, which right now is set to low at startup. Caveats: - We may still override MUX registry later - Not sure how to handle invalid bus definitions - Without SFP is it fine to *not* initialize anything? - Do to RAM limitation we do inititalize output GPIO to low
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
#ifndef _MACHINE_H_
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#define _MACHINE_H_
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#include <stdint.h>
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/*
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* Select your machine type below
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*/
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#define MACHINE_KP_9000_6XHML_X2
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// #define MACHINE_KP_9000_6XH_X
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// #define MACHINE_KP_9000_9XH_X_EU
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// #define MACHINE_SWGT024_V2_0
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// #define MACHINE_HORACO_ZX_SG4T2
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// #define DEFAULT_8C_1SFP
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// #define DEFAULT_5C_1SFP
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struct i2c_bus {
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// These are I2C bus identifiers refer to GPIO MUX document
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// for GPIO pin assignments for given bus numbers
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uint8_t sda : 3; // SDA pin number 0-4
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uint8_t scl : 3; // SCL pin number 0-3
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uint8_t reserved : 2;
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};
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struct sfp_port
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{
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uint8_t pin_detect; // gpio number 0-63, 0xFF = don't have it?
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uint8_t pin_los; // gpio number 0-63, 0xFF = don't have it?
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uint8_t pin_tx_disable; // gpio number 0-63, 0xFF = not present
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uint8_t sds;
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struct i2c_bus i2c_bus;
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};
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typedef struct machine {
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char machine_name[30];
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uint8_t isRTL8373;
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uint8_t min_port;
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uint8_t max_port;
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uint8_t n_sfp;
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uint8_t log_to_phys_port[9];
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uint8_t phys_to_log_port[9]; // Starts at 0 for port 1
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uint8_t is_sfp[9]; // 0 for non-SFP ports 1 or 2 for the I2C port number
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// sfp_port[0] is the first SFP-port from the left on the device, sfp_port[1] the next if present
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struct sfp_port sfp_port[2];
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int8_t reset_pin;
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};
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typedef struct machine_runtime
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{
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uint8_t isRTL8373 : 1;
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uint8_t isN : 1;
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};
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#endif
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