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
211 * at a time. Some SFP modules and also some Linux I2C drivers do not like
221 struct sfp { struct
231 unsigned int (*get_state)(struct sfp *); argument
232 void (*set_state)(struct sfp *, unsigned int); argument
233 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
234 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
287 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
288 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
308 { .compatible = "sff,sfp", .data = &sfp_data, },
315 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
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()
331 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
333 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
336 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
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()
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()
355 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
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()
395 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
412 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
422 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
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()
447 sfp->i2c_mii = i2c_mii; in sfp_i2c_configure()
453 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
455 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
458 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
460 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
463 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
469 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
476 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
477 "failed to read SFP soft status: %d\n", 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()
486 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) in sfp_soft_set_state() argument
490 if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) == in sfp_soft_set_state()
497 sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_set_state()
501 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
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()
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()
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()
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()
521 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
523 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
526 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
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()
532 state |= sfp_soft_get_state(sfp); in sfp_get_state()
537 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
539 sfp->set_state(sfp, state); in sfp_set_state()
542 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
543 sfp_soft_set_state(sfp, state); in sfp_set_state()
562 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
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()
655 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
660 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
674 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
677 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
681 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
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()
692 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
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()
700 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
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()
708 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
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()
716 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
720 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
724 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
729 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
733 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
737 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
742 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
746 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
750 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
755 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
759 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
763 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
768 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
772 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
781 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
788 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
791 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
792 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
796 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
797 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
800 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
801 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
805 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
806 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
810 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
818 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
826 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
834 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
847 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
854 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
857 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
858 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
862 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
863 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
867 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
868 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
872 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
873 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
877 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
885 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
893 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
901 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
914 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
921 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
924 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
925 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
929 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
930 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
934 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
935 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
939 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
940 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
944 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
952 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
960 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
968 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
981 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
988 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
991 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
992 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
996 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
997 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1001 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
1002 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1006 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1007 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1011 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1019 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1027 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1035 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1048 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1055 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_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()
1078 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1086 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1094 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1102 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1118 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1122 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1124 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1126 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1130 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1132 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1294 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
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()
1341 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
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()
1361 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
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()
1371 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1373 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1378 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1380 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1383 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1388 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1392 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1397 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1403 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
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()
1411 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
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()
1419 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1421 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1426 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1430 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1433 /* SFP state machine */
1434 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
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()
1443 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1446 sfp->sm_state = state; in sfp_sm_next()
1447 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1450 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1453 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1454 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1457 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
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()
1465 static int sfp_sm_probe_phy(struct sfp *sfp, bool is_c45) in sfp_sm_probe_phy() argument
1470 phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45); in sfp_sm_probe_phy()
1474 dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(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()
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()
1498 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1500 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1501 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1504 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1506 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1509 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
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()
1526 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1528 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1531 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1535 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1541 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1545 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1551 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1553 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1554 dev_err(sfp->dev, in sfp_sm_fault()
1556 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1559 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1561 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1565 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1569 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1573 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1576 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1580 switch (sfp->id.base.extended_cc) { in sfp_sm_probe_for_phy()
1585 err = sfp_sm_probe_phy(sfp, true); in sfp_sm_probe_for_phy()
1589 if (sfp->id.base.e1000_base_t) in sfp_sm_probe_for_phy()
1590 err = sfp_sm_probe_phy(sfp, false); in sfp_sm_probe_for_phy()
1596 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
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()
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()
1659 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1664 err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1666 dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1682 err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1684 dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err); 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()
1707 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
1709 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
1722 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
1730 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); 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()
1745 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 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()
1754 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
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()
1765 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1768 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1773 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1777 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
1783 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { 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()
1790 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1793 dev_err(sfp->dev, "failed to read EEPROM: %d\n", in sfp_sm_mod_probe()
1799 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1816 ret = sfp_cotsworks_fixup_check(sfp, &id); 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()
1832 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, 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()
1846 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1853 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1857 dev_err(sfp->dev, in sfp_sm_mod_probe()
1860 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, 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()
1876 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
1877 dev_err(sfp->dev, in sfp_sm_mod_probe()
1879 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); 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()
1889 ret = sfp_module_parse_power(sfp); 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()
1908 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
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()
1913 sfp_hwmon_remove(sfp); 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()
1922 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
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()
1949 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
1955 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
1956 sfp_sm_mod_remove(sfp); in sfp_sm_module()
1957 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); 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()
1966 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
1967 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
1971 switch (sfp->sm_mod_state) { in sfp_sm_module()
1974 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); 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()
1987 if (sfp->sm_mod_tries_init && in sfp_sm_module()
1988 --sfp->sm_mod_tries_init) { in sfp_sm_module()
1989 sfp_sm_set_timer(sfp, T_PROBE_RETRY_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()
1995 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2000 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2004 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2006 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_sm_module()
2008 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); 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()
2018 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2023 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2026 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2030 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2033 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2034 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2036 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2041 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2050 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2059 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
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()
2070 sfp_sm_link_down(sfp); 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()
2074 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2075 sfp_module_tx_disable(sfp); in sfp_sm_main()
2076 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2077 sfp_sm_next(sfp, SFP_S_DOWN, 0); 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()
2089 sfp_soft_start_poll(sfp); in sfp_sm_main()
2091 sfp_module_tx_enable(sfp); in sfp_sm_main()
2094 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2100 sfp_sm_next(sfp, SFP_S_WAIT, T_WAIT); in sfp_sm_main()
2107 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2113 timeout = sfp->module_t_start_up; in sfp_sm_main()
2119 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2129 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2133 sfp_sm_fault(sfp, SFP_S_INIT_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()
2149 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2151 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2152 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2155 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2158 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2161 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2162 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2165 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2168 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2173 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2174 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2180 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2181 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2182 sfp_sm_link_up(sfp); in sfp_sm_main()
2187 sfp_sm_link_down(sfp); in sfp_sm_main()
2188 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2189 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2190 sfp_sm_link_down(sfp); in sfp_sm_main()
2191 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2197 sfp_module_tx_fault_reset(sfp); 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()
2204 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2206 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2207 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2216 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
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()
2226 sfp_sm_device(sfp, event); in sfp_sm_event()
2227 sfp_sm_module(sfp, event); in sfp_sm_event()
2228 sfp_sm_main(sfp, event); 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()
2238 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2240 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2243 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2245 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2248 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2250 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2253 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2255 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2258 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2262 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2263 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2273 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2288 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2300 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2318 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2321 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2325 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2329 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2330 state = sfp_get_state(sfp); 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()
2347 sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2351 sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2355 sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2358 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2363 struct sfp *sfp = data; in sfp_irq() local
2365 sfp_check_state(sfp); in sfp_irq()
2372 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2374 sfp_check_state(sfp); in sfp_poll()
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()
2381 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2383 struct sfp *sfp; in sfp_alloc() local
2385 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2386 if (!sfp) 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()
2397 sfp_hwmon_init(sfp); in sfp_alloc()
2399 return sfp; in sfp_alloc()
2404 struct sfp *sfp = data; in sfp_cleanup() local
2406 sfp_hwmon_exit(sfp); in sfp_cleanup()
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()
2416 kfree(sfp); in sfp_cleanup()
2424 struct sfp *sfp; in sfp_probe() local
2427 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2428 if (IS_ERR(sfp)) in sfp_probe()
2429 return PTR_ERR(sfp); in sfp_probe()
2431 platform_set_drvdata(pdev, sfp); 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()
2448 sff = sfp->type = id->data; in sfp_probe()
2452 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2480 err = sfp_i2c_configure(sfp, i2c); 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()
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()
2518 sfp_module_tx_disable(sfp); in sfp_probe()
2519 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2521 sfp_sm_event(sfp, SFP_E_INSERT); 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()
2543 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2548 sfp_irq_name, sfp); 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()
2565 "No tx_disable pin: SFP modules will always be emitting.\n"); 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()
2576 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
2578 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2581 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
2589 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
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()
2608 .name = "sfp",
2627 MODULE_ALIAS("platform:sfp");