ac2be9d99a
* remove nephos sonic-platform-modules-ingrasys module * [Ingrasys]Add platform drivers and device to support Debian Stretch * fix gpio init issue
333 lines
9.7 KiB
Python
333 lines
9.7 KiB
Python
# sfputil.py
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#
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# Platform-specific SFP transceiver interface for SONiC
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#
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import os
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try:
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import time
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from sonic_sfp.sfputilbase import SfpUtilBase
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except ImportError as e:
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raise ImportError("%s - required module not found" % str(e))
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class SfpUtil(SfpUtilBase):
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"""Platform-specific SfpUtil class"""
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PORT_START = 0
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PORT_END = 33
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SFP_PORT_START = 32
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PORTS_IN_BLOCK = 34
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GPIO_OFFSET = 0
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BASE_DIR_PATH = "/sys/class/gpio/gpio{0}/direction"
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BASE_VAL_PATH = "/sys/class/gpio/gpio{0}/value"
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_port_to_eeprom_mapping = {}
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port_to_i2c_mapping = {
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0: 10,
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1: 9,
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2: 12,
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3: 11,
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4: 14,
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5: 13,
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6: 16,
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7: 15,
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8: 18,
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9: 17,
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10: 20,
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11: 19,
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12: 22,
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13: 21,
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14: 24,
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15: 23,
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16: 26,
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17: 25,
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18: 28,
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19: 27,
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20: 30,
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21: 29,
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22: 32,
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23: 31,
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24: 34,
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25: 33,
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26: 36,
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27: 35,
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28: 38,
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29: 37,
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30: 40,
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31: 39,
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32: 45,
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33: 46
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}
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abs_to_gpio_mapping = {}
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lpmode_to_gpio_mapping = {}
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reset_to_gpio_mapping = {}
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@property
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def port_start(self):
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return self.PORT_START
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@property
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def port_end(self):
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return self.PORT_END
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@property
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def qsfp_ports(self):
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return range(0, self.PORTS_IN_BLOCK + 1)
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@property
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def port_to_eeprom_mapping(self):
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return self._port_to_eeprom_mapping
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@property
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def sfp_port_start(self):
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return self.SFP_PORT_START
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def set_gpio_offset(self):
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sys_gpio_dir = "/sys/class/gpio"
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self.GPIO_OFFSET = 0
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gpiochip_no = 0
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for d in os.listdir(sys_gpio_dir):
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if "gpiochip" in d:
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try:
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gpiochip_no = int(d[8:],10)
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except ValueError as e:
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print "Error: %s" % str(e)
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if gpiochip_no > 255:
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self.GPIO_OFFSET=256
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return True
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return True
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def init_abs_to_gpio_mapping(self):
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self.abs_to_gpio_mapping = {
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0: 241+self.GPIO_OFFSET,
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1: 240+self.GPIO_OFFSET,
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2: 243+self.GPIO_OFFSET,
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3: 242+self.GPIO_OFFSET,
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4: 245+self.GPIO_OFFSET,
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5: 244+self.GPIO_OFFSET,
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6: 247+self.GPIO_OFFSET,
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7: 246+self.GPIO_OFFSET,
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8: 249+self.GPIO_OFFSET,
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9: 248+self.GPIO_OFFSET,
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10: 251+self.GPIO_OFFSET,
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11: 250+self.GPIO_OFFSET,
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12: 253+self.GPIO_OFFSET,
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13: 252+self.GPIO_OFFSET,
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14: 255+self.GPIO_OFFSET,
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15: 254+self.GPIO_OFFSET,
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16: 225+self.GPIO_OFFSET,
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17: 224+self.GPIO_OFFSET,
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18: 227+self.GPIO_OFFSET,
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19: 226+self.GPIO_OFFSET,
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20: 229+self.GPIO_OFFSET,
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21: 228+self.GPIO_OFFSET,
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22: 231+self.GPIO_OFFSET,
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23: 230+self.GPIO_OFFSET,
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24: 233+self.GPIO_OFFSET,
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25: 232+self.GPIO_OFFSET,
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26: 235+self.GPIO_OFFSET,
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27: 234+self.GPIO_OFFSET,
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28: 237+self.GPIO_OFFSET,
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29: 236+self.GPIO_OFFSET,
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30: 239+self.GPIO_OFFSET,
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31: 238+self.GPIO_OFFSET,
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32: 177+self.GPIO_OFFSET,
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33: 176+self.GPIO_OFFSET
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}
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return True
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def init_lpmode_to_gpio_mapping(self):
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self.lpmode_to_gpio_mapping = {
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0: 161+self.GPIO_OFFSET,
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1: 160+self.GPIO_OFFSET,
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2: 163+self.GPIO_OFFSET,
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3: 162+self.GPIO_OFFSET,
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4: 165+self.GPIO_OFFSET,
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5: 164+self.GPIO_OFFSET,
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6: 167+self.GPIO_OFFSET,
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7: 166+self.GPIO_OFFSET,
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8: 169+self.GPIO_OFFSET,
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9: 168+self.GPIO_OFFSET,
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10: 171+self.GPIO_OFFSET,
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11: 170+self.GPIO_OFFSET,
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12: 173+self.GPIO_OFFSET,
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13: 172+self.GPIO_OFFSET,
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14: 175+self.GPIO_OFFSET,
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15: 174+self.GPIO_OFFSET,
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16: 145+self.GPIO_OFFSET,
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17: 144+self.GPIO_OFFSET,
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18: 147+self.GPIO_OFFSET,
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19: 146+self.GPIO_OFFSET,
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20: 149+self.GPIO_OFFSET,
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21: 148+self.GPIO_OFFSET,
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22: 151+self.GPIO_OFFSET,
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23: 150+self.GPIO_OFFSET,
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24: 153+self.GPIO_OFFSET,
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25: 152+self.GPIO_OFFSET,
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26: 155+self.GPIO_OFFSET,
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27: 154+self.GPIO_OFFSET,
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28: 157+self.GPIO_OFFSET,
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29: 156+self.GPIO_OFFSET,
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30: 159+self.GPIO_OFFSET,
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31: 158+self.GPIO_OFFSET
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}
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return True
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def init_reset_to_gpio_mapping(self):
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self.reset_to_gpio_mapping = {
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0: 129+self.GPIO_OFFSET,
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1: 128+self.GPIO_OFFSET,
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2: 131+self.GPIO_OFFSET,
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3: 130+self.GPIO_OFFSET,
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4: 133+self.GPIO_OFFSET,
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5: 132+self.GPIO_OFFSET,
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6: 135+self.GPIO_OFFSET,
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7: 134+self.GPIO_OFFSET,
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8: 137+self.GPIO_OFFSET,
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9: 136+self.GPIO_OFFSET,
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10: 139+self.GPIO_OFFSET,
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11: 138+self.GPIO_OFFSET,
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12: 141+self.GPIO_OFFSET,
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13: 140+self.GPIO_OFFSET,
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14: 143+self.GPIO_OFFSET,
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15: 142+self.GPIO_OFFSET,
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16: 113+self.GPIO_OFFSET,
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17: 112+self.GPIO_OFFSET,
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18: 115+self.GPIO_OFFSET,
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19: 114+self.GPIO_OFFSET,
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20: 117+self.GPIO_OFFSET,
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21: 116+self.GPIO_OFFSET,
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22: 119+self.GPIO_OFFSET,
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23: 118+self.GPIO_OFFSET,
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24: 121+self.GPIO_OFFSET,
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25: 120+self.GPIO_OFFSET,
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26: 123+self.GPIO_OFFSET,
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27: 122+self.GPIO_OFFSET,
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28: 125+self.GPIO_OFFSET,
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29: 124+self.GPIO_OFFSET,
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30: 127+self.GPIO_OFFSET,
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31: 126+self.GPIO_OFFSET
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}
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return True
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def __init__(self):
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# Init abs, lpmode, and reset to gpio mapping
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self.set_gpio_offset()
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self.init_abs_to_gpio_mapping()
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self.init_lpmode_to_gpio_mapping()
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self.init_reset_to_gpio_mapping()
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# Override port_to_eeprom_mapping for class initialization
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eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom"
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for x in range(self.port_start, self.port_end + 1):
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port_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[x])
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self.port_to_eeprom_mapping[x] = port_eeprom_path
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SfpUtilBase.__init__(self)
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def get_presence(self, port_num):
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# Check for invalid port_num
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if port_num < self.port_start or port_num > self.port_end:
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return False
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try:
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abs_device_file = self.BASE_VAL_PATH.format(
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self.abs_to_gpio_mapping[port_num])
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val_file = open(abs_device_file)
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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content = val_file.readline().rstrip()
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val_file.close()
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# content is a string, either "0" or "1"
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if content == "1":
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return True
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return False
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def get_low_power_mode(self, port_num):
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# Check for invalid port_num
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if port_num < self.port_start or port_num > self.sfp_port_start: # TBD
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return False
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try:
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lpmode_val_device_file = self.BASE_VAL_PATH.format(
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self.lpmode_to_gpio_mapping[port_num])
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val_file = open(lpmode_val_device_file)
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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content = val_file.readline().rstrip()
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val_file.close()
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# content is a string, either "0" or "1"
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if content == "1":
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return True
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return False
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def set_low_power_mode(self, port_num, lpmode):
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# Check for invalid port_num
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if port_num < self.port_start or port_num > self.sfp_port_start: # TBD
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return False
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try:
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lpmode_val_device_file = self.BASE_VAL_PATH.format(
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self.lpmode_to_gpio_mapping[port_num])
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val_file = open(lpmode_val_device_file, "w")
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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val_file.write("1" if lpmode is True else "0")
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val_file.close()
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return True
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def reset(self, port_num):
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# Check for invalid port_num
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if port_num < self.port_start or port_num > self.sfp_port_start: # TBD
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return False
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try:
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reset_val_device_file = self.BASE_VAL_PATH.format(
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self.reset_to_gpio_mapping[port_num])
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val_file = open(reset_val_device_file, "w")
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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val_file.write("1")
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val_file.close()
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# Sleep 1 second to allow it to settle
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time.sleep(1)
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try:
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reset_val_device_file = self.BASE_VAL_PATH.format(
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self.reset_to_gpio_mapping[port_num])
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val_file = open(reset_val_device_file, "w")
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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val_file.write("0")
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val_file.close()
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return True
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def get_transceiver_change_event(self):
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"""
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TODO: This function need to be implemented
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when decide to support monitoring SFP(Xcvrd)
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on this platform.
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"""
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raise NotImplementedError
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