Lines Matching full:sfp
21 #include "sfp.h"
166 * on board (for a copper SFP) time to initialise.
192 /* SFP module presence detection is poor: the three MOD DEF signals are
206 /* SFP modules appear to always have their PHY configured for bus address
216 struct sfp { struct
226 unsigned int (*get_state)(struct sfp *); argument
227 void (*set_state)(struct sfp *, unsigned int); argument
228 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
229 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
284 /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored in sfp_module_supported()
285 * phys id SFF instead of SFP. Therefore mark this module explicitly in sfp_module_supported()
305 { .compatible = "sff,sfp", .data = &sfp_data, },
312 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
317 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
320 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
328 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
330 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
333 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
337 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
338 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
341 gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT], in sfp_gpio_set_state()
345 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
346 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
348 gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]); in sfp_gpio_set_state()
352 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
357 size_t block_size = sfp->i2c_block_size; in sfp_i2c_read()
377 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
392 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
409 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
419 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
427 sfp->i2c = i2c; in sfp_i2c_configure()
428 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
429 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
431 i2c_mii = mdio_i2c_alloc(sfp->dev, i2c); in sfp_i2c_configure()
435 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_configure()
444 sfp->i2c_mii = i2c_mii; in sfp_i2c_configure()
450 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
452 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
455 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
457 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
460 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
466 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
473 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
474 "failed to read SFP soft status: %d\n", in sfp_soft_get_state()
477 state = sfp->state; in sfp_soft_get_state()
480 return state & sfp->state_soft_mask; in sfp_soft_get_state()
483 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) in sfp_soft_set_state() argument
487 if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) == in sfp_soft_set_state()
494 sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_set_state()
498 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
500 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
502 sfp->state_soft_mask = 0; in sfp_soft_start_poll()
504 !sfp->gpio[GPIO_TX_DISABLE]) in sfp_soft_start_poll()
505 sfp->state_soft_mask |= SFP_F_TX_DISABLE; in sfp_soft_start_poll()
507 !sfp->gpio[GPIO_TX_FAULT]) in sfp_soft_start_poll()
508 sfp->state_soft_mask |= SFP_F_TX_FAULT; in sfp_soft_start_poll()
510 !sfp->gpio[GPIO_LOS]) in sfp_soft_start_poll()
511 sfp->state_soft_mask |= SFP_F_LOS; in sfp_soft_start_poll()
513 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
514 !sfp->need_poll) in sfp_soft_start_poll()
515 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
518 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
520 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
523 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
525 unsigned int state = sfp->get_state(sfp); in sfp_get_state()
528 sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT)) in sfp_get_state()
529 state |= sfp_soft_get_state(sfp); in sfp_get_state()
534 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
536 sfp->set_state(sfp, state); in sfp_set_state()
539 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
540 sfp_soft_set_state(sfp, state); in sfp_set_state()
559 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
572 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
591 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
610 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
626 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
638 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
652 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
657 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
671 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
674 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
678 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
680 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
681 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
689 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
691 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
692 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
697 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
699 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
700 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
705 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
707 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
708 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
713 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
717 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
721 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
726 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
730 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
734 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
739 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
743 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
747 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
752 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
756 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
760 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
765 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
769 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
778 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
785 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
788 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
789 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
793 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
794 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
797 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
798 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
802 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
803 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
807 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
815 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
823 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
831 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
844 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
851 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
854 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
855 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
859 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
860 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
864 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
865 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
869 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
870 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
874 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
882 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
890 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
898 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
911 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
918 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
921 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
922 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
926 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
927 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
931 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
932 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
936 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
937 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
941 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
949 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
957 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
965 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
978 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
985 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
988 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
989 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
993 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
994 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
998 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
999 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1003 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
1004 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
1008 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1016 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1024 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1032 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1045 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1052 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1055 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1060 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1065 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1070 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1075 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1083 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1091 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1099 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1115 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1119 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1121 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1123 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1127 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1129 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1291 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1300 if (sfp->i2c_block_size < 2) { in sfp_hwmon_probe()
1301 dev_info(sfp->dev, in sfp_hwmon_probe()
1303 dev_info(sfp->dev, in sfp_hwmon_probe()
1308 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1310 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1311 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1314 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_hwmon_probe()
1319 sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL); in sfp_hwmon_probe()
1320 if (!sfp->hwmon_name) { in sfp_hwmon_probe()
1321 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1325 for (i = 0; sfp->hwmon_name[i]; i++) in sfp_hwmon_probe()
1326 if (hwmon_is_bad_char(sfp->hwmon_name[i])) in sfp_hwmon_probe()
1327 sfp->hwmon_name[i] = '_'; in sfp_hwmon_probe()
1329 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1330 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1333 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1334 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1335 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1338 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1340 if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE) in sfp_hwmon_insert()
1343 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) in sfp_hwmon_insert()
1346 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_hwmon_insert()
1352 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1353 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1358 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1360 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1361 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1362 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1363 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1364 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1368 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1370 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1375 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1377 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1380 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1385 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1389 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1394 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1400 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1402 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1403 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1404 sfp->state |= SFP_F_TX_DISABLE; in sfp_module_tx_disable()
1405 sfp_set_state(sfp, sfp->state); in sfp_module_tx_disable()
1408 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1410 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1411 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1412 sfp->state &= ~SFP_F_TX_DISABLE; in sfp_module_tx_enable()
1413 sfp_set_state(sfp, sfp->state); in sfp_module_tx_enable()
1419 struct sfp *sfp = s->private; in sfp_debug_state_show() local
1422 mod_state_to_str(sfp->sm_mod_state)); in sfp_debug_state_show()
1424 R_PROBE_RETRY_INIT - sfp->sm_mod_tries_init, in sfp_debug_state_show()
1425 R_PROBE_RETRY_SLOW - sfp->sm_mod_tries); in sfp_debug_state_show()
1427 dev_state_to_str(sfp->sm_dev_state)); in sfp_debug_state_show()
1429 sm_state_to_str(sfp->sm_state)); in sfp_debug_state_show()
1431 sfp->sm_fault_retries); in sfp_debug_state_show()
1433 sfp->sm_phy_retries); in sfp_debug_state_show()
1434 seq_printf(s, "moddef0: %d\n", !!(sfp->state & SFP_F_PRESENT)); in sfp_debug_state_show()
1435 seq_printf(s, "rx_los: %d\n", !!(sfp->state & SFP_F_LOS)); in sfp_debug_state_show()
1436 seq_printf(s, "tx_fault: %d\n", !!(sfp->state & SFP_F_TX_FAULT)); in sfp_debug_state_show()
1437 seq_printf(s, "tx_disable: %d\n", !!(sfp->state & SFP_F_TX_DISABLE)); in sfp_debug_state_show()
1442 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1444 sfp->debugfs_dir = debugfs_create_dir(dev_name(sfp->dev), NULL); in sfp_debugfs_init()
1446 debugfs_create_file("state", 0600, sfp->debugfs_dir, sfp, in sfp_debugfs_init()
1450 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1452 debugfs_remove_recursive(sfp->debugfs_dir); in sfp_debugfs_exit()
1455 static void sfp_debugfs_init(struct sfp *sfp) in sfp_debugfs_init() argument
1459 static void sfp_debugfs_exit(struct sfp *sfp) in sfp_debugfs_exit() argument
1464 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1466 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1471 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1475 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1478 /* SFP state machine */
1479 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1482 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1485 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1488 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1491 sfp->sm_state = state; in sfp_sm_next()
1492 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1495 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1498 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1499 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1502 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1504 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1505 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1506 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1507 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1510 static int sfp_sm_probe_phy(struct sfp *sfp, bool is_c45) in sfp_sm_probe_phy() argument
1515 phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45); in sfp_sm_probe_phy()
1519 dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy)); in sfp_sm_probe_phy()
1526 dev_err(sfp->dev, "phy_device_register failed: %d\n", err); in sfp_sm_probe_phy()
1530 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1534 dev_err(sfp->dev, "sfp_add_phy failed: %d\n", err); in sfp_sm_probe_phy()
1538 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1543 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1545 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1546 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1549 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1551 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1554 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1558 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_sm_link_check_los()
1566 los = !(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1568 los = !!(sfp->state & SFP_F_LOS); in sfp_sm_link_check_los()
1571 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1573 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1576 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1580 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_active()
1586 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1590 __be16 los_options = sfp->id.ext.options & (los_inverted | los_normal); in sfp_los_event_inactive()
1596 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1598 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1599 dev_err(sfp->dev, in sfp_sm_fault()
1601 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1604 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1606 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1610 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1614 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1618 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1621 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1625 switch (sfp->id.base.extended_cc) { in sfp_sm_probe_for_phy()
1630 err = sfp_sm_probe_phy(sfp, true); in sfp_sm_probe_for_phy()
1634 if (sfp->id.base.e1000_base_t) in sfp_sm_probe_for_phy()
1635 err = sfp_sm_probe_phy(sfp, false); in sfp_sm_probe_for_phy()
1641 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1645 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1647 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1650 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1652 if (sfp->id.ext.sff8472_compliance == in sfp_module_parse_power()
1654 !(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) { in sfp_module_parse_power()
1659 dev_err(sfp->dev, in sfp_module_parse_power()
1664 dev_warn(sfp->dev, in sfp_module_parse_power()
1675 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE && power_mW > 1000) { in sfp_module_parse_power()
1676 dev_warn(sfp->dev, in sfp_module_parse_power()
1682 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1687 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1692 err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1694 dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1710 err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1712 dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1717 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1718 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1719 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1735 static bool sfp_id_needs_byte_io(struct sfp *sfp, void *buf, size_t len) in sfp_id_needs_byte_io() argument
1737 size_t i, block_size = sfp->i2c_block_size; in sfp_id_needs_byte_io()
1750 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
1758 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
1762 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
1764 dev_err(sfp->dev, "Failed to rewrite module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1773 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
1775 dev_err(sfp->dev, "Failed to update base structure checksum in fiber module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1782 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
1784 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
1791 /* Some SFP modules and also some Linux I2C drivers do not like reads in sfp_sm_mod_probe()
1795 sfp->i2c_block_size = 16; in sfp_sm_mod_probe()
1797 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1800 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1805 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1809 /* Some SFP modules (e.g. Nokia 3FE46541AA) lock up if read from in sfp_sm_mod_probe()
1815 if (sfp_id_needs_byte_io(sfp, &id.base, sizeof(id.base))) { in sfp_sm_mod_probe()
1816 dev_info(sfp->dev, in sfp_sm_mod_probe()
1818 dev_info(sfp->dev, in sfp_sm_mod_probe()
1820 sfp->i2c_block_size = 1; in sfp_sm_mod_probe()
1822 ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); in sfp_sm_mod_probe()
1825 dev_err(sfp->dev, "failed to read EEPROM: %d\n", in sfp_sm_mod_probe()
1831 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1848 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
1857 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1861 dev_err(sfp->dev, in sfp_sm_mod_probe()
1864 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1870 ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); in sfp_sm_mod_probe()
1873 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1878 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1885 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1889 dev_err(sfp->dev, in sfp_sm_mod_probe()
1892 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1898 sfp->id = id; in sfp_sm_mod_probe()
1900 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
1908 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
1909 dev_err(sfp->dev, in sfp_sm_mod_probe()
1911 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
1916 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_sm_mod_probe()
1917 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1921 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
1927 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_sm_mod_probe()
1929 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
1934 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
1936 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
1937 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
1939 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
1941 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
1942 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
1944 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
1948 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
1950 switch (sfp->sm_dev_state) { in sfp_sm_device()
1953 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1958 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1960 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
1965 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1967 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1975 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
1981 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
1982 sfp_sm_mod_remove(sfp); in sfp_sm_module()
1983 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
1988 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
1989 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
1990 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
1991 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
1992 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
1993 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
1997 switch (sfp->sm_mod_state) { in sfp_sm_module()
2000 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
2001 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
2002 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
2011 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
2013 if (sfp->sm_mod_tries_init && in sfp_sm_module()
2014 --sfp->sm_mod_tries_init) { in sfp_sm_module()
2015 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2017 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
2018 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
2019 dev_warn(sfp->dev, in sfp_sm_module()
2021 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
2026 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2030 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
2032 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_sm_module()
2034 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
2038 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
2042 err = sfp_module_insert(sfp->sfp_bus, &sfp->id); in sfp_sm_module()
2044 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2049 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
2052 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
2056 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
2059 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
2060 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
2062 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
2067 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
2076 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
2085 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
2091 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
2092 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2093 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
2094 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
2095 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
2096 sfp_sm_link_down(sfp); in sfp_sm_main()
2097 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
2098 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
2099 if (sfp->mod_phy) in sfp_sm_main()
2100 sfp_sm_phy_detach(sfp); in sfp_sm_main()
2101 sfp_module_tx_disable(sfp); in sfp_sm_main()
2102 sfp_soft_stop_poll(sfp); in sfp_sm_main()
2103 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
2108 switch (sfp->sm_state) { in sfp_sm_main()
2110 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
2111 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
2114 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) in sfp_sm_main()
2115 sfp_soft_start_poll(sfp); in sfp_sm_main()
2117 sfp_module_tx_enable(sfp); in sfp_sm_main()
2120 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
2126 sfp_sm_next(sfp, SFP_S_WAIT, T_WAIT); in sfp_sm_main()
2133 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2139 timeout = sfp->module_t_start_up; in sfp_sm_main()
2145 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
2155 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2159 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2160 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2163 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2175 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2177 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2178 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2181 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2184 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2187 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2188 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2191 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2194 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2199 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2200 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2206 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2207 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2208 sfp_sm_link_up(sfp); in sfp_sm_main()
2213 sfp_sm_link_down(sfp); in sfp_sm_main()
2214 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2215 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2216 sfp_sm_link_down(sfp); in sfp_sm_main()
2217 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2223 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2224 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2229 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2230 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2232 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2233 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2242 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2244 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2246 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in sfp_sm_event()
2247 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2248 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2249 sm_state_to_str(sfp->sm_state), in sfp_sm_event()
2252 sfp_sm_device(sfp, event); in sfp_sm_event()
2253 sfp_sm_module(sfp, event); in sfp_sm_event()
2254 sfp_sm_main(sfp, event); in sfp_sm_event()
2256 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in sfp_sm_event()
2257 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2258 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2259 sm_state_to_str(sfp->sm_state)); in sfp_sm_event()
2261 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2264 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2266 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2269 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2271 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2274 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2276 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2279 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2281 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2284 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2288 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2289 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2299 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2314 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2326 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2333 static int sfp_module_eeprom_by_page(struct sfp *sfp, in sfp_module_eeprom_by_page() argument
2353 return sfp_read(sfp, page->i2c_address == 0x51, page->offset, in sfp_module_eeprom_by_page()
2369 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2372 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2376 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2380 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2381 state = sfp_get_state(sfp); in sfp_check_state()
2382 changed = state ^ sfp->state; in sfp_check_state()
2387 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], in sfp_check_state()
2388 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2390 state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); in sfp_check_state()
2391 sfp->state = state; in sfp_check_state()
2395 sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2399 sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2403 sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2406 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2411 struct sfp *sfp = data; in sfp_irq() local
2413 sfp_check_state(sfp); in sfp_irq()
2420 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2422 sfp_check_state(sfp); in sfp_poll()
2424 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2425 sfp->need_poll) in sfp_poll()
2426 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2429 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2431 struct sfp *sfp; in sfp_alloc() local
2433 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2434 if (!sfp) in sfp_alloc()
2437 sfp->dev = dev; in sfp_alloc()
2439 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2440 mutex_init(&sfp->st_mutex); in sfp_alloc()
2441 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2442 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2444 sfp_hwmon_init(sfp); in sfp_alloc()
2446 return sfp; in sfp_alloc()
2451 struct sfp *sfp = data; in sfp_cleanup() local
2453 sfp_hwmon_exit(sfp); in sfp_cleanup()
2455 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2456 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2457 if (sfp->i2c_mii) { in sfp_cleanup()
2458 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2459 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2461 if (sfp->i2c) in sfp_cleanup()
2462 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2463 kfree(sfp); in sfp_cleanup()
2471 struct sfp *sfp; in sfp_probe() local
2474 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2475 if (IS_ERR(sfp)) in sfp_probe()
2476 return PTR_ERR(sfp); in sfp_probe()
2478 platform_set_drvdata(pdev, sfp); in sfp_probe()
2480 err = devm_add_action(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2484 sff = sfp->type = &sfp_data; in sfp_probe()
2495 sff = sfp->type = id->data; in sfp_probe()
2499 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2527 err = sfp_i2c_configure(sfp, i2c); in sfp_probe()
2535 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2537 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2538 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2541 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2542 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2545 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2546 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2549 &sfp->max_power_mW); in sfp_probe()
2550 if (!sfp->max_power_mW) in sfp_probe()
2551 sfp->max_power_mW = 1000; in sfp_probe()
2553 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
2554 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
2559 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
2561 if (sfp->gpio[GPIO_RATE_SELECT] && in sfp_probe()
2562 gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT])) in sfp_probe()
2563 sfp->state |= SFP_F_RATE_SELECT; in sfp_probe()
2564 sfp_set_state(sfp, sfp->state); in sfp_probe()
2565 sfp_module_tx_disable(sfp); in sfp_probe()
2566 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2568 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
2573 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
2576 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
2577 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
2578 sfp->gpio_irq[i] = 0; in sfp_probe()
2579 sfp->need_poll = true; in sfp_probe()
2583 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
2584 "%s-%s", dev_name(sfp->dev), in sfp_probe()
2590 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2595 sfp_irq_name, sfp); in sfp_probe()
2597 sfp->gpio_irq[i] = 0; in sfp_probe()
2598 sfp->need_poll = true; in sfp_probe()
2602 if (sfp->need_poll) in sfp_probe()
2603 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
2610 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
2611 dev_warn(sfp->dev, in sfp_probe()
2612 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
2614 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
2615 if (!sfp->sfp_bus) in sfp_probe()
2618 sfp_debugfs_init(sfp); in sfp_probe()
2625 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
2627 sfp_debugfs_exit(sfp); in sfp_remove()
2628 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2631 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
2639 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
2643 if (!sfp->gpio_irq[i]) in sfp_shutdown()
2646 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
2649 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
2650 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
2658 .name = "sfp",
2677 MODULE_ALIAS("platform:sfp");