Lines Matching +full:ext +full:- +full:phy
1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/mdio/mdio-i2c.h>
14 #include <linux/phy.h>
147 "mod-def0",
149 "tx-fault",
150 "tx-disable",
151 "rate-select0",
162 /* t_start_up (SFF-8431) or t_init (SFF-8472) is the time required for a
163 * non-cooled module to initialise its laser safety circuitry. We wait
164 * an initial T_WAIT period before we check the tx fault to give any PHY
185 /* T_PHY_RETRY is the time interval between attempts to probe the PHY.
195 * The SFF-8472 specifies t_serial ("Time from power on until module is
205 /* SFP modules appear to always have their PHY configured for bus address
206 * 0x56 (which with mdio-i2c, translates to a PHY address of 22).
272 return id->base.phys_id == SFF8024_ID_SFF_8472 && in sff_module_supported()
273 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP; in sff_module_supported()
283 if (id->base.phys_id == SFF8024_ID_SFP && in sfp_module_supported()
284 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP) in sfp_module_supported()
287 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
291 if (id->base.phys_id == SFF8024_ID_SFF_8472 && in sfp_module_supported()
292 id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP && in sfp_module_supported()
293 !memcmp(id->base.vendor_name, "UBNT ", 16) && in sfp_module_supported()
294 !memcmp(id->base.vendor_pn, "UF-INSTANT ", 16)) in sfp_module_supported()
320 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
323 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
340 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
341 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
344 gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT], in sfp_gpio_set_state()
347 /* Otherwise, let them float to the pull-ups */ in sfp_gpio_set_state()
348 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
349 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
351 gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]); in sfp_gpio_set_state()
360 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
380 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
389 len -= this_len; in sfp_i2c_read()
392 return msgs[1].buf - (u8 *)buf; in sfp_i2c_read()
407 return -ENOMEM; in sfp_i2c_write()
412 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
428 return -EINVAL; in sfp_i2c_configure()
430 sfp->i2c = i2c; in sfp_i2c_configure()
431 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
432 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
434 i2c_mii = mdio_i2c_alloc(sfp->dev, i2c); in sfp_i2c_configure()
438 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_configure()
439 i2c_mii->phy_mask = ~0; in sfp_i2c_configure()
447 sfp->i2c_mii = i2c_mii; in sfp_i2c_configure()
455 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
460 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
476 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
480 state = sfp->state; in sfp_soft_get_state()
483 return state & sfp->state_soft_mask; in sfp_soft_get_state()
503 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
505 sfp->state_soft_mask = 0; in sfp_soft_start_poll()
506 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE && in sfp_soft_start_poll()
507 !sfp->gpio[GPIO_TX_DISABLE]) in sfp_soft_start_poll()
508 sfp->state_soft_mask |= SFP_F_TX_DISABLE; in sfp_soft_start_poll()
509 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT && in sfp_soft_start_poll()
510 !sfp->gpio[GPIO_TX_FAULT]) in sfp_soft_start_poll()
511 sfp->state_soft_mask |= SFP_F_TX_FAULT; in sfp_soft_start_poll()
512 if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS && in sfp_soft_start_poll()
513 !sfp->gpio[GPIO_LOS]) in sfp_soft_start_poll()
514 sfp->state_soft_mask |= SFP_F_LOS; in sfp_soft_start_poll()
516 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
517 !sfp->need_poll) in sfp_soft_start_poll()
518 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
523 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
528 unsigned int state = sfp->get_state(sfp); in sfp_get_state()
531 sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT)) in sfp_get_state()
539 sfp->set_state(sfp, state); in sfp_set_state()
542 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
550 for (p = buf, check = 0; len; p++, len--) in sfp_check()
575 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
594 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
613 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
629 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
641 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
677 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
683 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
684 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
687 *value -= 0x10000; in sfp_hwmon_calibrate_temp()
694 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
695 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
702 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
703 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
710 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
711 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
791 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
796 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
800 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
805 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
841 return -EOPNOTSUPP; in sfp_hwmon_temp()
844 return -EOPNOTSUPP; in sfp_hwmon_temp()
857 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
862 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
867 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
872 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
908 return -EOPNOTSUPP; in sfp_hwmon_vcc()
911 return -EOPNOTSUPP; in sfp_hwmon_vcc()
924 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
929 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
934 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
939 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
975 return -EOPNOTSUPP; in sfp_hwmon_bias()
978 return -EOPNOTSUPP; in sfp_hwmon_bias()
991 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
996 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
1001 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1006 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1042 return -EOPNOTSUPP; in sfp_hwmon_tx_power()
1045 return -EOPNOTSUPP; in sfp_hwmon_tx_power()
1058 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1063 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1068 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1073 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1109 return -EOPNOTSUPP; in sfp_hwmon_rx_power()
1112 return -EOPNOTSUPP; in sfp_hwmon_rx_power()
1134 return -EOPNOTSUPP; in sfp_hwmon_read()
1137 return -EOPNOTSUPP; in sfp_hwmon_read()
1157 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1166 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1175 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1184 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1188 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1191 return -EOPNOTSUPP; in sfp_hwmon_read_string()
1303 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1304 dev_info(sfp->dev, in sfp_hwmon_probe()
1306 dev_info(sfp->dev, in sfp_hwmon_probe()
1311 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1313 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1314 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1317 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_hwmon_probe()
1322 sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL); in sfp_hwmon_probe()
1323 if (!sfp->hwmon_name) { in sfp_hwmon_probe()
1324 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1328 for (i = 0; sfp->hwmon_name[i]; i++) in sfp_hwmon_probe()
1329 if (hwmon_is_bad_char(sfp->hwmon_name[i])) in sfp_hwmon_probe()
1330 sfp->hwmon_name[i] = '_'; in sfp_hwmon_probe()
1332 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1333 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1336 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1337 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1338 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1343 if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE) in sfp_hwmon_insert()
1346 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) in sfp_hwmon_insert()
1349 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_hwmon_insert()
1355 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1356 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1363 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1364 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1365 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1366 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1367 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1373 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1380 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1405 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1406 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1407 sfp->state |= SFP_F_TX_DISABLE; in sfp_module_tx_disable()
1408 sfp_set_state(sfp, sfp->state); in sfp_module_tx_disable()
1413 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1414 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1415 sfp->state &= ~SFP_F_TX_DISABLE; in sfp_module_tx_enable()
1416 sfp_set_state(sfp, sfp->state); in sfp_module_tx_enable()
1421 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1437 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1440 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1446 sfp->sm_state = state; in sfp_sm_next()
1453 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1459 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1460 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1461 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1462 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1467 struct phy_device *phy; in sfp_sm_probe_phy() local
1470 phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45); in sfp_sm_probe_phy()
1471 if (phy == ERR_PTR(-ENODEV)) in sfp_sm_probe_phy()
1472 return PTR_ERR(phy); in sfp_sm_probe_phy()
1473 if (IS_ERR(phy)) { in sfp_sm_probe_phy()
1474 dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy)); in sfp_sm_probe_phy()
1475 return PTR_ERR(phy); in sfp_sm_probe_phy()
1478 err = phy_device_register(phy); in sfp_sm_probe_phy()
1480 phy_device_free(phy); in sfp_sm_probe_phy()
1481 dev_err(sfp->dev, "phy_device_register failed: %d\n", err); in sfp_sm_probe_phy()
1485 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1487 phy_device_remove(phy); in sfp_sm_probe_phy()
1488 phy_device_free(phy); in sfp_sm_probe_phy()
1489 dev_err(sfp->dev, "sfp_add_phy failed: %d\n", err); in sfp_sm_probe_phy()
1493 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1500 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1506 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1513 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1521 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1523 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1535 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1545 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1553 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1554 dev_err(sfp->dev, in sfp_sm_fault()
1559 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1565 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1567 * or clause 45 PHY.
1570 * negotiation enabled, but some may be in 1000base-X - which is for the
1571 * PHY driver to determine.
1580 switch (sfp->id.base.extended_cc) { in sfp_sm_probe_for_phy()
1589 if (sfp->id.base.e1000_base_t) in sfp_sm_probe_for_phy()
1601 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1603 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1606 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1608 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1610 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1617 dev_err(sfp->dev, in sfp_module_parse_power()
1620 return -EINVAL; in sfp_module_parse_power()
1622 dev_warn(sfp->dev, in sfp_module_parse_power()
1631 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1647 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1648 dev_warn(sfp->dev, in sfp_module_parse_power()
1654 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1666 dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1667 return -EAGAIN; in sfp_sm_mod_hpower()
1684 dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1685 return -EAGAIN; in sfp_sm_mod_hpower()
1689 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1690 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1691 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1696 /* GPON modules based on Realtek RTL8672 and RTL9601C chips (e.g. V-SOL
1697 * V2801F, CarlitoxxPro CPGOS03-0490, Ubiquiti U-Fiber Instant, ...) do
1698 * not support multibyte reads from the EEPROM. Each multi-byte read
1701 * chips. Moreover every OEM of V-SOL V2801F module puts its own vendor
1703 * module is V-SOL V2801F. Therefore check for those zeros in the read
1709 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
1716 if (memchr_inv(buf + i, '\0', min(block_size - 1, len - i))) in sfp_id_needs_byte_io()
1727 if (id->base.phys_id != SFF8024_ID_SFF_8472 || in sfp_cotsworks_fixup_check()
1728 id->base.phys_ext_id != SFP_PHYS_EXT_ID_SFP || in sfp_cotsworks_fixup_check()
1729 id->base.connector != SFF8024_CONNECTOR_LC) { in sfp_cotsworks_fixup_check()
1730 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
1731 id->base.phys_id = SFF8024_ID_SFF_8472; in sfp_cotsworks_fixup_check()
1732 id->base.phys_ext_id = SFP_PHYS_EXT_ID_SFP; in sfp_cotsworks_fixup_check()
1733 id->base.connector = SFF8024_CONNECTOR_LC; in sfp_cotsworks_fixup_check()
1734 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
1736 dev_err(sfp->dev, "Failed to rewrite module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1744 check = sfp_check(&id->base, sizeof(id->base) - 1); in sfp_cotsworks_fixup_check()
1747 dev_err(sfp->dev, "Failed to update base structure checksum in fiber module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1756 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
1763 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_sm_mod_probe()
1768 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1769 return -EAGAIN; in sfp_sm_mod_probe()
1773 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1774 return -EAGAIN; in sfp_sm_mod_probe()
1778 * address 0x51 is just one byte at a time. Also SFF-8472 requires in sfp_sm_mod_probe()
1784 dev_info(sfp->dev, in sfp_sm_mod_probe()
1786 dev_info(sfp->dev, in sfp_sm_mod_probe()
1788 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
1793 dev_err(sfp->dev, "failed to read EEPROM: %d\n", in sfp_sm_mod_probe()
1795 return -EAGAIN; in sfp_sm_mod_probe()
1799 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1800 return -EAGAIN; in sfp_sm_mod_probe()
1822 check = sfp_check(&id.base, sizeof(id.base) - 1); in sfp_sm_mod_probe()
1825 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1829 dev_err(sfp->dev, in sfp_sm_mod_probe()
1834 return -EINVAL; in sfp_sm_mod_probe()
1838 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
1841 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1842 return -EAGAIN; in sfp_sm_mod_probe()
1845 if (ret != sizeof(id.ext)) { in sfp_sm_mod_probe()
1846 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1847 return -EAGAIN; in sfp_sm_mod_probe()
1850 check = sfp_check(&id.ext, sizeof(id.ext) - 1); in sfp_sm_mod_probe()
1851 if (check != id.ext.cc_ext) { in sfp_sm_mod_probe()
1853 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1855 check, id.ext.cc_ext); in sfp_sm_mod_probe()
1857 dev_err(sfp->dev, in sfp_sm_mod_probe()
1859 check, id.ext.cc_ext); in sfp_sm_mod_probe()
1862 memset(&id.ext, 0, sizeof(id.ext)); in sfp_sm_mod_probe()
1866 sfp->id = id; in sfp_sm_mod_probe()
1868 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
1872 (int)sizeof(id.ext.vendor_sn), id.ext.vendor_sn, in sfp_sm_mod_probe()
1873 (int)sizeof(id.ext.datecode), id.ext.datecode); in sfp_sm_mod_probe()
1876 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
1877 dev_err(sfp->dev, in sfp_sm_mod_probe()
1878 "module is not supported - phys id 0x%02x 0x%02x\n", in sfp_sm_mod_probe()
1879 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
1880 return -EINVAL; in sfp_sm_mod_probe()
1884 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_sm_mod_probe()
1885 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1895 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_sm_mod_probe()
1897 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
1901 sfp->tx_fault_ignore = true; in sfp_sm_mod_probe()
1903 sfp->tx_fault_ignore = false; in sfp_sm_mod_probe()
1910 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
1911 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
1915 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
1916 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
1918 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
1924 switch (sfp->sm_dev_state) { in sfp_sm_device()
1927 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1932 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1934 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
1939 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1941 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1947 * the on-board EEPROM, and sets up the power level.
1955 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
1962 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
1963 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
1964 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
1965 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
1971 switch (sfp->sm_mod_state) { in sfp_sm_module()
1975 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
1976 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
1985 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
1986 if (err == -EAGAIN) { in sfp_sm_module()
1987 if (sfp->sm_mod_tries_init && in sfp_sm_module()
1988 --sfp->sm_mod_tries_init) { in sfp_sm_module()
1991 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
1992 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
1993 dev_warn(sfp->dev, in sfp_sm_module()
2006 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_sm_module()
2012 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2016 err = sfp_module_insert(sfp->sfp_bus, &sfp->id); in sfp_sm_module()
2023 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2032 if (err != -EAGAIN) { in sfp_sm_module()
2033 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2065 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2066 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2067 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2068 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2069 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2071 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2072 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2073 if (sfp->mod_phy) in sfp_sm_main()
2082 switch (sfp->sm_state) { in sfp_sm_main()
2084 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2085 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2088 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) in sfp_sm_main()
2094 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2098 * anything (such as probe for a PHY) is 50ms. in sfp_sm_main()
2107 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2108 /* Wait up to t_init (SFF-8472) or t_start_up (SFF-8431) in sfp_sm_main()
2113 timeout = sfp->module_t_start_up; in sfp_sm_main()
2115 timeout -= T_WAIT; in sfp_sm_main()
2129 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2134 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2137 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2147 * clear. Probe for the PHY and check the LOS state. in sfp_sm_main()
2150 if (ret == -ENODEV) { in sfp_sm_main()
2151 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2155 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2161 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2168 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2174 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2198 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2203 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2206 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2218 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2220 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in sfp_sm_event()
2221 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2222 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2223 sm_state_to_str(sfp->sm_state), in sfp_sm_event()
2230 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in sfp_sm_event()
2231 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2232 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2233 sm_state_to_str(sfp->sm_state)); in sfp_sm_event()
2235 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2262 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2263 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2264 modinfo->type = ETH_MODULE_SFF_8472; in sfp_module_info()
2265 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; in sfp_module_info()
2267 modinfo->type = ETH_MODULE_SFF_8079; in sfp_module_info()
2268 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; in sfp_module_info()
2279 if (ee->len == 0) in sfp_module_eeprom()
2280 return -EINVAL; in sfp_module_eeprom()
2282 first = ee->offset; in sfp_module_eeprom()
2283 last = ee->offset + ee->len; in sfp_module_eeprom()
2286 len -= first; in sfp_module_eeprom()
2297 len -= first; in sfp_module_eeprom()
2298 first -= ETH_MODULE_SFF_8079_LEN; in sfp_module_eeprom()
2329 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2331 changed = state ^ sfp->state; in sfp_check_state()
2332 if (sfp->tx_fault_ignore) in sfp_check_state()
2339 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], in sfp_check_state()
2340 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2342 state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); in sfp_check_state()
2343 sfp->state = state; in sfp_check_state()
2358 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2376 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2377 sfp->need_poll) in sfp_poll()
2378 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2387 return ERR_PTR(-ENOMEM); in sfp_alloc()
2389 sfp->dev = dev; in sfp_alloc()
2390 sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE; in sfp_alloc()
2392 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2393 mutex_init(&sfp->st_mutex); in sfp_alloc()
2394 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2395 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2408 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2409 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2410 if (sfp->i2c_mii) { in sfp_cleanup()
2411 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2412 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2414 if (sfp->i2c) in sfp_cleanup()
2415 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2427 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2433 err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2437 sff = sfp->type = &sfp_data; in sfp_probe()
2439 if (pdev->dev.of_node) { in sfp_probe()
2440 struct device_node *node = pdev->dev.of_node; in sfp_probe()
2446 return -EINVAL; in sfp_probe()
2448 sff = sfp->type = id->data; in sfp_probe()
2450 np = of_parse_phandle(node, "i2c-bus", 0); in sfp_probe()
2452 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2453 return -ENODEV; in sfp_probe()
2458 } else if (has_acpi_companion(&pdev->dev)) { in sfp_probe()
2459 struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); in sfp_probe()
2465 ret = acpi_node_get_property_reference(fw, "i2c-bus", 0, &args); in sfp_probe()
2467 dev_err(&pdev->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2468 return -ENODEV; in sfp_probe()
2474 return -EINVAL; in sfp_probe()
2478 return -EPROBE_DEFER; in sfp_probe()
2487 if (sff->gpios & BIT(i)) { in sfp_probe()
2488 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2490 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2491 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2494 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2495 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2498 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2499 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2501 device_property_read_u32(&pdev->dev, "maximum-power-milliwatt", in sfp_probe()
2502 &sfp->max_power_mW); in sfp_probe()
2503 if (!sfp->max_power_mW) in sfp_probe()
2504 sfp->max_power_mW = 1000; in sfp_probe()
2506 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
2507 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
2512 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
2514 if (sfp->gpio[GPIO_RATE_SELECT] && in sfp_probe()
2515 gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT])) in sfp_probe()
2516 sfp->state |= SFP_F_RATE_SELECT; in sfp_probe()
2517 sfp_set_state(sfp, sfp->state); in sfp_probe()
2519 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2526 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
2529 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
2530 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
2531 sfp->gpio_irq[i] = 0; in sfp_probe()
2532 sfp->need_poll = true; in sfp_probe()
2536 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
2537 "%s-%s", dev_name(sfp->dev), in sfp_probe()
2541 return -ENOMEM; in sfp_probe()
2543 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2550 sfp->gpio_irq[i] = 0; in sfp_probe()
2551 sfp->need_poll = true; in sfp_probe()
2555 if (sfp->need_poll) in sfp_probe()
2556 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
2563 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
2564 dev_warn(sfp->dev, in sfp_probe()
2567 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
2568 if (!sfp->sfp_bus) in sfp_probe()
2569 return -ENOMEM; in sfp_probe()
2578 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2593 if (!sfp->gpio_irq[i]) in sfp_shutdown()
2596 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
2599 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
2600 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()