Lines Matching full:sfp
20 #include "sfp.h"
165 * on board (for a copper SFP) time to initialise.
191 /* SFP module presence detection is poor: the three MOD DEF signals are
205 /* SFP modules appear to always have their PHY configured for bus address
215 struct sfp { struct
225 unsigned int (*get_state)(struct sfp *); argument
226 void (*set_state)(struct sfp *, unsigned int); argument
227 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
228 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
280 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
281 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
301 { .compatible = "sff,sfp", .data = &sfp_data, },
308 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
313 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
316 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
324 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
326 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
329 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
333 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
334 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
337 gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT], in sfp_gpio_set_state()
341 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
342 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
344 gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]); in sfp_gpio_set_state()
348 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
353 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
373 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
388 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
405 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
415 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
423 sfp->i2c = i2c; in sfp_i2c_configure()
424 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
425 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
427 i2c_mii = mdio_i2c_alloc(sfp->dev, i2c); in sfp_i2c_configure()
431 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_configure()
440 sfp->i2c_mii = i2c_mii; in sfp_i2c_configure()
446 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
448 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
451 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
453 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
456 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
462 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
469 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
470 "failed to read SFP soft status: %d\n", in sfp_soft_get_state()
473 state = sfp->state; in sfp_soft_get_state()
476 return state & sfp->state_soft_mask; in sfp_soft_get_state()
479 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) in sfp_soft_set_state() argument
483 if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) == in sfp_soft_set_state()
490 sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_set_state()
494 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
496 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
498 sfp->state_soft_mask = 0; in sfp_soft_start_poll()
500 !sfp->gpio[GPIO_TX_DISABLE]) in sfp_soft_start_poll()
501 sfp->state_soft_mask |= SFP_F_TX_DISABLE; in sfp_soft_start_poll()
503 !sfp->gpio[GPIO_TX_FAULT]) in sfp_soft_start_poll()
504 sfp->state_soft_mask |= SFP_F_TX_FAULT; in sfp_soft_start_poll()
506 !sfp->gpio[GPIO_LOS]) in sfp_soft_start_poll()
507 sfp->state_soft_mask |= SFP_F_LOS; in sfp_soft_start_poll()
509 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
510 !sfp->need_poll) in sfp_soft_start_poll()
511 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
514 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
516 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
519 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
521 unsigned int state = sfp->get_state(sfp); in sfp_get_state()
524 sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT)) in sfp_get_state()
525 state |= sfp_soft_get_state(sfp); in sfp_get_state()
530 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
532 sfp->set_state(sfp, state); in sfp_set_state()
535 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
536 sfp_soft_set_state(sfp, state); in sfp_set_state()
555 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
568 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
587 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
606 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
622 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
634 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
648 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
653 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
667 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
670 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
674 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
676 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
677 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
685 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
687 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
688 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
693 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
695 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
696 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
701 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
703 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
704 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
709 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
713 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
717 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
722 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
726 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
730 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
735 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
739 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
743 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
748 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
752 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
756 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
761 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
765 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
774 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
781 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
784 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
785 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
789 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
790 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
793 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
794 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
798 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
799 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
803 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
811 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
819 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
827 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
840 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
847 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
850 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
851 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
855 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
856 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
860 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
861 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
865 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
866 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
870 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
878 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
886 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
894 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
907 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
914 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
917 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
918 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
922 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
923 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
927 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
928 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
932 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
933 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
937 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
945 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
953 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
961 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
974 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
981 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
984 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
985 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
989 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
990 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
994 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
995 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
999 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1000 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1004 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1012 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1020 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1028 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1041 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1048 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1051 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1056 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1061 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1066 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1071 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1079 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1087 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1095 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1111 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1115 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1117 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1119 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1123 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1125 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1287 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1296 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1297 dev_info(sfp->dev, in sfp_hwmon_probe()
1299 dev_info(sfp->dev, in sfp_hwmon_probe()
1304 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1306 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1307 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1310 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_hwmon_probe()
1315 sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL); in sfp_hwmon_probe()
1316 if (!sfp->hwmon_name) { in sfp_hwmon_probe()
1317 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1321 for (i = 0; sfp->hwmon_name[i]; i++) in sfp_hwmon_probe()
1322 if (hwmon_is_bad_char(sfp->hwmon_name[i])) in sfp_hwmon_probe()
1323 sfp->hwmon_name[i] = '_'; in sfp_hwmon_probe()
1325 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1326 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1329 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1330 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1331 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1334 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1336 if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE) in sfp_hwmon_insert()
1339 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) in sfp_hwmon_insert()
1342 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_hwmon_insert()
1348 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1349 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1354 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1356 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1357 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1358 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1359 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1360 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1364 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1366 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1371 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1373 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1376 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1381 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1385 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1390 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1396 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1398 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1399 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1400 sfp->state |= SFP_F_TX_DISABLE; in sfp_module_tx_disable()
1401 sfp_set_state(sfp, sfp->state); in sfp_module_tx_disable()
1404 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1406 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1407 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1408 sfp->state &= ~SFP_F_TX_DISABLE; in sfp_module_tx_enable()
1409 sfp_set_state(sfp, sfp->state); in sfp_module_tx_enable()
1412 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1414 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1419 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1423 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1426 /* SFP state machine */
1427 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1430 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1433 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1436 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1439 sfp->sm_state = state; in sfp_sm_next()
1440 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1443 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1446 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1447 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1450 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1452 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1453 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1454 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1455 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1458 static int sfp_sm_probe_phy(struct sfp *sfp, bool is_c45) in sfp_sm_probe_phy() argument
1463 phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45); in sfp_sm_probe_phy()
1467 dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy)); in sfp_sm_probe_phy()
1474 dev_err(sfp->dev, "phy_device_register failed: %d\n", err); in sfp_sm_probe_phy()
1478 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1482 dev_err(sfp->dev, "sfp_add_phy failed: %d\n", err); in sfp_sm_probe_phy()
1486 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1491 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1493 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1494 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1497 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1499 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1502 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1506 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1514 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1516 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1519 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1521 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1524 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1528 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1534 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1538 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1544 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1546 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1547 dev_err(sfp->dev, in sfp_sm_fault()
1549 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1552 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1554 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1558 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1562 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1566 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1569 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1573 switch (sfp->id.base.extended_cc) { in sfp_sm_probe_for_phy()
1578 err = sfp_sm_probe_phy(sfp, true); in sfp_sm_probe_for_phy()
1582 if (sfp->id.base.e1000_base_t) in sfp_sm_probe_for_phy()
1583 err = sfp_sm_probe_phy(sfp, false); in sfp_sm_probe_for_phy()
1589 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1594 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1596 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1599 supports_a2 = sfp->id.ext.sff8472_compliance != in sfp_module_parse_power()
1601 sfp->id.ext.diagmon & SFP_DIAGMON_DDM; in sfp_module_parse_power()
1603 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1610 dev_err(sfp->dev, in sfp_module_parse_power()
1615 dev_warn(sfp->dev, in sfp_module_parse_power()
1624 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1640 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) { in sfp_module_parse_power()
1641 dev_warn(sfp->dev, in sfp_module_parse_power()
1647 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1652 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1657 err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1659 dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1675 err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1677 dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1682 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1683 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1684 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1700 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
1702 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
1715 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
1723 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
1727 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
1729 dev_err(sfp->dev, "Failed to rewrite module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1738 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
1740 dev_err(sfp->dev, "Failed to update base structure checksum in fiber module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1747 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
1749 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
1756 /* Some SFP modules and also some Linux I2C drivers do not like reads in sfp_sm_mod_probe()
1760 sfp->i2c_block_size = 16; in sfp_sm_mod_probe()
1762 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1765 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1770 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1774 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
1780 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
1781 dev_info(sfp->dev, in sfp_sm_mod_probe()
1783 dev_info(sfp->dev, in sfp_sm_mod_probe()
1785 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
1787 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1790 dev_err(sfp->dev, "failed to read EEPROM: %d\n", in sfp_sm_mod_probe()
1796 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1813 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
1822 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1826 dev_err(sfp->dev, in sfp_sm_mod_probe()
1829 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1835 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
1838 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1843 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1850 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1854 dev_err(sfp->dev, in sfp_sm_mod_probe()
1857 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1863 sfp->id = id; in sfp_sm_mod_probe()
1865 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
1873 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
1874 dev_err(sfp->dev, in sfp_sm_mod_probe()
1876 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
1881 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_sm_mod_probe()
1882 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1886 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
1892 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_sm_mod_probe()
1894 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
1899 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
1901 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
1902 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
1904 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
1906 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
1907 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
1909 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
1913 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
1915 switch (sfp->sm_dev_state) { in sfp_sm_device()
1918 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1923 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1925 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
1930 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1932 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1940 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
1946 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
1947 sfp_sm_mod_remove(sfp); in sfp_sm_module()
1948 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
1953 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
1954 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
1955 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
1956 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
1957 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
1958 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
1962 switch (sfp->sm_mod_state) { in sfp_sm_module()
1965 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
1966 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
1967 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
1976 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
1978 if (sfp->sm_mod_tries_init && in sfp_sm_module()
1979 --sfp->sm_mod_tries_init) { in sfp_sm_module()
1980 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
1982 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
1983 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
1984 dev_warn(sfp->dev, in sfp_sm_module()
1986 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
1991 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
1995 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
1997 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_sm_module()
1999 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2003 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2007 err = sfp_module_insert(sfp->sfp_bus, &sfp->id); in sfp_sm_module()
2009 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2014 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2017 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2021 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2024 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2025 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2027 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2032 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2041 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2050 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2056 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2057 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2058 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2059 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2060 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2061 sfp_sm_link_down(sfp); in sfp_sm_main()
2062 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2063 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2064 if (sfp->mod_phy) in sfp_sm_main()
2065 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2066 sfp_module_tx_disable(sfp); in sfp_sm_main()
2067 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2068 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2073 switch (sfp->sm_state) { in sfp_sm_main()
2075 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2076 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2079 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) in sfp_sm_main()
2080 sfp_soft_start_poll(sfp); in sfp_sm_main()
2082 sfp_module_tx_enable(sfp); in sfp_sm_main()
2085 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2091 sfp_sm_next(sfp, SFP_S_WAIT, T_WAIT); in sfp_sm_main()
2098 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2104 timeout = sfp->module_t_start_up; in sfp_sm_main()
2110 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2120 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2124 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2125 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2128 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2140 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2142 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2143 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2146 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2149 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2152 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2153 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2156 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2159 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2164 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2165 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2171 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2172 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2173 sfp_sm_link_up(sfp); in sfp_sm_main()
2178 sfp_sm_link_down(sfp); in sfp_sm_main()
2179 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2180 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2181 sfp_sm_link_down(sfp); in sfp_sm_main()
2182 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2188 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2189 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2194 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2195 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2197 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2198 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2207 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2209 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2211 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in sfp_sm_event()
2212 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2213 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2214 sm_state_to_str(sfp->sm_state), in sfp_sm_event()
2217 sfp_sm_device(sfp, event); in sfp_sm_event()
2218 sfp_sm_module(sfp, event); in sfp_sm_event()
2219 sfp_sm_main(sfp, event); in sfp_sm_event()
2221 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in sfp_sm_event()
2222 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2223 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2224 sm_state_to_str(sfp->sm_state)); in sfp_sm_event()
2226 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2229 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2231 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2234 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2236 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2239 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2241 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2244 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2246 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2249 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2253 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2254 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2264 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2279 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2291 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2309 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2312 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2316 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2320 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2321 state = sfp_get_state(sfp); in sfp_check_state()
2322 changed = state ^ sfp->state; in sfp_check_state()
2327 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], in sfp_check_state()
2328 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2330 state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); in sfp_check_state()
2331 sfp->state = state; in sfp_check_state()
2335 sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2339 sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2343 sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2346 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2351 struct sfp *sfp = data; in sfp_irq() local
2353 sfp_check_state(sfp); in sfp_irq()
2360 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2362 sfp_check_state(sfp); in sfp_poll()
2364 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2365 sfp->need_poll) in sfp_poll()
2366 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2369 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2371 struct sfp *sfp; in sfp_alloc() local
2373 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2374 if (!sfp) in sfp_alloc()
2377 sfp->dev = dev; in sfp_alloc()
2379 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2380 mutex_init(&sfp->st_mutex); in sfp_alloc()
2381 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2382 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2384 sfp_hwmon_init(sfp); in sfp_alloc()
2386 return sfp; in sfp_alloc()
2391 struct sfp *sfp = data; in sfp_cleanup() local
2393 sfp_hwmon_exit(sfp); in sfp_cleanup()
2395 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2396 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2397 if (sfp->i2c_mii) { in sfp_cleanup()
2398 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2399 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2401 if (sfp->i2c) in sfp_cleanup()
2402 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2403 kfree(sfp); in sfp_cleanup()
2411 struct sfp *sfp; in sfp_probe() local
2414 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2415 if (IS_ERR(sfp)) in sfp_probe()
2416 return PTR_ERR(sfp); in sfp_probe()
2418 platform_set_drvdata(pdev, sfp); in sfp_probe()
2420 err = devm_add_action(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2424 sff = sfp->type = &sfp_data; in sfp_probe()
2435 sff = sfp->type = id->data; in sfp_probe()
2439 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2467 err = sfp_i2c_configure(sfp, i2c); in sfp_probe()
2475 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2477 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2478 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2481 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2482 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2485 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2486 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2489 &sfp->max_power_mW); in sfp_probe()
2490 if (!sfp->max_power_mW) in sfp_probe()
2491 sfp->max_power_mW = 1000; in sfp_probe()
2493 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
2494 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
2499 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
2501 if (sfp->gpio[GPIO_RATE_SELECT] && in sfp_probe()
2502 gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT])) in sfp_probe()
2503 sfp->state |= SFP_F_RATE_SELECT; in sfp_probe()
2504 sfp_set_state(sfp, sfp->state); in sfp_probe()
2505 sfp_module_tx_disable(sfp); in sfp_probe()
2506 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2508 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
2513 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
2516 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
2517 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
2518 sfp->gpio_irq[i] = 0; in sfp_probe()
2519 sfp->need_poll = true; in sfp_probe()
2523 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
2524 "%s-%s", dev_name(sfp->dev), in sfp_probe()
2530 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2535 sfp_irq_name, sfp); in sfp_probe()
2537 sfp->gpio_irq[i] = 0; in sfp_probe()
2538 sfp->need_poll = true; in sfp_probe()
2542 if (sfp->need_poll) in sfp_probe()
2543 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
2550 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
2551 dev_warn(sfp->dev, in sfp_probe()
2552 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
2554 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
2555 if (!sfp->sfp_bus) in sfp_probe()
2563 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
2565 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2568 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
2576 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
2580 if (!sfp->gpio_irq[i]) in sfp_shutdown()
2583 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
2586 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
2587 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
2595 .name = "sfp",
2614 MODULE_ALIAS("platform:sfp");