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
224 unsigned int (*get_state)(struct sfp *); argument
225 void (*set_state)(struct sfp *, unsigned int); argument
226 int (*read)(struct sfp *, bool, u8, void *, size_t); argument
227 int (*write)(struct sfp *, bool, u8, void *, size_t); argument
287 { .compatible = "sff,sfp", .data = &sfp_data, },
294 static unsigned int sfp_gpio_get_state(struct sfp *sfp) in sfp_gpio_get_state() argument
299 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_gpio_get_state()
302 v = gpiod_get_value_cansleep(sfp->gpio[i]); in sfp_gpio_get_state()
310 static unsigned int sff_gpio_get_state(struct sfp *sfp) in sff_gpio_get_state() argument
312 return sfp_gpio_get_state(sfp) | SFP_F_PRESENT; in sff_gpio_get_state()
315 static void sfp_gpio_set_state(struct sfp *sfp, unsigned int state) in sfp_gpio_set_state() argument
319 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
320 gpiod_direction_output(sfp->gpio[GPIO_TX_DISABLE], in sfp_gpio_set_state()
323 gpiod_direction_output(sfp->gpio[GPIO_RATE_SELECT], in sfp_gpio_set_state()
327 if (sfp->gpio[GPIO_TX_DISABLE]) in sfp_gpio_set_state()
328 gpiod_direction_input(sfp->gpio[GPIO_TX_DISABLE]); in sfp_gpio_set_state()
330 gpiod_direction_input(sfp->gpio[GPIO_RATE_SELECT]); in sfp_gpio_set_state()
334 static int sfp_i2c_read(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_read() argument
358 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_read()
373 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf, in sfp_i2c_write() argument
390 ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs)); in sfp_i2c_write()
400 static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) in sfp_i2c_configure() argument
408 sfp->i2c = i2c; in sfp_i2c_configure()
409 sfp->read = sfp_i2c_read; in sfp_i2c_configure()
410 sfp->write = sfp_i2c_write; in sfp_i2c_configure()
412 i2c_mii = mdio_i2c_alloc(sfp->dev, i2c); in sfp_i2c_configure()
416 i2c_mii->name = "SFP I2C Bus"; in sfp_i2c_configure()
425 sfp->i2c_mii = i2c_mii; in sfp_i2c_configure()
431 static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_read() argument
433 return sfp->read(sfp, a2, addr, buf, len); in sfp_read()
436 static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len) in sfp_write() argument
438 return sfp->write(sfp, a2, addr, buf, len); in sfp_write()
441 static unsigned int sfp_soft_get_state(struct sfp *sfp) in sfp_soft_get_state() argument
447 ret = sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_get_state()
454 dev_err_ratelimited(sfp->dev, in sfp_soft_get_state()
455 "failed to read SFP soft status: %d\n", in sfp_soft_get_state()
458 state = sfp->state; in sfp_soft_get_state()
461 return state & sfp->state_soft_mask; in sfp_soft_get_state()
464 static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) in sfp_soft_set_state() argument
468 if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) == in sfp_soft_set_state()
475 sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status)); in sfp_soft_set_state()
479 static void sfp_soft_start_poll(struct sfp *sfp) in sfp_soft_start_poll() argument
481 const struct sfp_eeprom_id *id = &sfp->id; in sfp_soft_start_poll()
483 sfp->state_soft_mask = 0; in sfp_soft_start_poll()
485 !sfp->gpio[GPIO_TX_DISABLE]) in sfp_soft_start_poll()
486 sfp->state_soft_mask |= SFP_F_TX_DISABLE; in sfp_soft_start_poll()
488 !sfp->gpio[GPIO_TX_FAULT]) in sfp_soft_start_poll()
489 sfp->state_soft_mask |= SFP_F_TX_FAULT; in sfp_soft_start_poll()
491 !sfp->gpio[GPIO_LOS]) in sfp_soft_start_poll()
492 sfp->state_soft_mask |= SFP_F_LOS; in sfp_soft_start_poll()
494 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && in sfp_soft_start_poll()
495 !sfp->need_poll) in sfp_soft_start_poll()
496 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_soft_start_poll()
499 static void sfp_soft_stop_poll(struct sfp *sfp) in sfp_soft_stop_poll() argument
501 sfp->state_soft_mask = 0; in sfp_soft_stop_poll()
504 static unsigned int sfp_get_state(struct sfp *sfp) in sfp_get_state() argument
506 unsigned int state = sfp->get_state(sfp); in sfp_get_state()
509 sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT)) in sfp_get_state()
510 state |= sfp_soft_get_state(sfp); in sfp_get_state()
515 static void sfp_set_state(struct sfp *sfp, unsigned int state) in sfp_set_state() argument
517 sfp->set_state(sfp, state); in sfp_set_state()
520 sfp->state_soft_mask & SFP_F_TX_DISABLE) in sfp_set_state()
521 sfp_soft_set_state(sfp, state); in sfp_set_state()
540 const struct sfp *sfp = data; in sfp_hwmon_is_visible() local
553 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
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()
607 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL && in sfp_hwmon_is_visible()
619 if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN)) in sfp_hwmon_is_visible()
633 static int sfp_hwmon_read_sensor(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_sensor() argument
638 err = sfp_read(sfp, true, reg, &val, sizeof(val)); in sfp_hwmon_read_sensor()
652 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset, in sfp_hwmon_calibrate() argument
655 if (sfp->id.ext.diagmon & SFP_DIAGMON_EXT_CAL) in sfp_hwmon_calibrate()
659 static void sfp_hwmon_calibrate_temp(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_temp() argument
661 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_t_slope), in sfp_hwmon_calibrate_temp()
662 be16_to_cpu(sfp->diag.cal_t_offset), value); in sfp_hwmon_calibrate_temp()
670 static void sfp_hwmon_calibrate_vcc(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_vcc() argument
672 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_v_slope), in sfp_hwmon_calibrate_vcc()
673 be16_to_cpu(sfp->diag.cal_v_offset), value); in sfp_hwmon_calibrate_vcc()
678 static void sfp_hwmon_calibrate_bias(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_bias() argument
680 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txi_slope), in sfp_hwmon_calibrate_bias()
681 be16_to_cpu(sfp->diag.cal_txi_offset), value); in sfp_hwmon_calibrate_bias()
686 static void sfp_hwmon_calibrate_tx_power(struct sfp *sfp, long *value) in sfp_hwmon_calibrate_tx_power() argument
688 sfp_hwmon_calibrate(sfp, be16_to_cpu(sfp->diag.cal_txpwr_slope), in sfp_hwmon_calibrate_tx_power()
689 be16_to_cpu(sfp->diag.cal_txpwr_offset), value); in sfp_hwmon_calibrate_tx_power()
694 static int sfp_hwmon_read_temp(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_temp() argument
698 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_temp()
702 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_read_temp()
707 static int sfp_hwmon_read_vcc(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_vcc() argument
711 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_vcc()
715 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_read_vcc()
720 static int sfp_hwmon_read_bias(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_bias() argument
724 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_bias()
728 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_read_bias()
733 static int sfp_hwmon_read_tx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_tx_power() argument
737 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_tx_power()
741 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_read_tx_power()
746 static int sfp_hwmon_read_rx_power(struct sfp *sfp, int reg, long *value) in sfp_hwmon_read_rx_power() argument
750 err = sfp_hwmon_read_sensor(sfp, reg, value); in sfp_hwmon_read_rx_power()
759 static int sfp_hwmon_temp(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_temp() argument
766 return sfp_hwmon_read_temp(sfp, SFP_TEMP, value); in sfp_hwmon_temp()
769 *value = be16_to_cpu(sfp->diag.temp_low_alarm); in sfp_hwmon_temp()
770 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
774 *value = be16_to_cpu(sfp->diag.temp_low_warn); in sfp_hwmon_temp()
775 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
778 *value = be16_to_cpu(sfp->diag.temp_high_warn); in sfp_hwmon_temp()
779 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
783 *value = be16_to_cpu(sfp->diag.temp_high_alarm); in sfp_hwmon_temp()
784 sfp_hwmon_calibrate_temp(sfp, value); in sfp_hwmon_temp()
788 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
796 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
804 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_temp()
812 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_temp()
825 static int sfp_hwmon_vcc(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_vcc() argument
832 return sfp_hwmon_read_vcc(sfp, SFP_VCC, value); in sfp_hwmon_vcc()
835 *value = be16_to_cpu(sfp->diag.volt_low_alarm); in sfp_hwmon_vcc()
836 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
840 *value = be16_to_cpu(sfp->diag.volt_low_warn); in sfp_hwmon_vcc()
841 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
845 *value = be16_to_cpu(sfp->diag.volt_high_warn); in sfp_hwmon_vcc()
846 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
850 *value = be16_to_cpu(sfp->diag.volt_high_alarm); in sfp_hwmon_vcc()
851 sfp_hwmon_calibrate_vcc(sfp, value); in sfp_hwmon_vcc()
855 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
863 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
871 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_vcc()
879 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_vcc()
892 static int sfp_hwmon_bias(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_bias() argument
899 return sfp_hwmon_read_bias(sfp, SFP_TX_BIAS, value); in sfp_hwmon_bias()
902 *value = be16_to_cpu(sfp->diag.bias_low_alarm); in sfp_hwmon_bias()
903 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
907 *value = be16_to_cpu(sfp->diag.bias_low_warn); in sfp_hwmon_bias()
908 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
912 *value = be16_to_cpu(sfp->diag.bias_high_warn); in sfp_hwmon_bias()
913 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
917 *value = be16_to_cpu(sfp->diag.bias_high_alarm); in sfp_hwmon_bias()
918 sfp_hwmon_calibrate_bias(sfp, value); in sfp_hwmon_bias()
922 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
930 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
938 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_bias()
946 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_bias()
959 static int sfp_hwmon_tx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_tx_power() argument
966 return sfp_hwmon_read_tx_power(sfp, SFP_TX_POWER, value); in sfp_hwmon_tx_power()
969 *value = be16_to_cpu(sfp->diag.txpwr_low_alarm); in sfp_hwmon_tx_power()
970 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
974 *value = be16_to_cpu(sfp->diag.txpwr_low_warn); in sfp_hwmon_tx_power()
975 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
979 *value = be16_to_cpu(sfp->diag.txpwr_high_warn); in sfp_hwmon_tx_power()
980 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
984 *value = be16_to_cpu(sfp->diag.txpwr_high_alarm); in sfp_hwmon_tx_power()
985 sfp_hwmon_calibrate_tx_power(sfp, value); in sfp_hwmon_tx_power()
989 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
997 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1005 err = sfp_read(sfp, true, SFP_WARN0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1013 err = sfp_read(sfp, true, SFP_ALARM0, &status, sizeof(status)); in sfp_hwmon_tx_power()
1026 static int sfp_hwmon_rx_power(struct sfp *sfp, u32 attr, long *value) in sfp_hwmon_rx_power() argument
1033 return sfp_hwmon_read_rx_power(sfp, SFP_RX_POWER, value); in sfp_hwmon_rx_power()
1036 *value = be16_to_cpu(sfp->diag.rxpwr_low_alarm); in sfp_hwmon_rx_power()
1041 *value = be16_to_cpu(sfp->diag.rxpwr_low_warn); in sfp_hwmon_rx_power()
1046 *value = be16_to_cpu(sfp->diag.rxpwr_high_warn); in sfp_hwmon_rx_power()
1051 *value = be16_to_cpu(sfp->diag.rxpwr_high_alarm); in sfp_hwmon_rx_power()
1056 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1064 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1072 err = sfp_read(sfp, true, SFP_WARN1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1080 err = sfp_read(sfp, true, SFP_ALARM1, &status, sizeof(status)); in sfp_hwmon_rx_power()
1096 struct sfp *sfp = dev_get_drvdata(dev); in sfp_hwmon_read() local
1100 return sfp_hwmon_temp(sfp, attr, value); in sfp_hwmon_read()
1102 return sfp_hwmon_vcc(sfp, attr, value); in sfp_hwmon_read()
1104 return sfp_hwmon_bias(sfp, attr, value); in sfp_hwmon_read()
1108 return sfp_hwmon_tx_power(sfp, attr, value); in sfp_hwmon_read()
1110 return sfp_hwmon_rx_power(sfp, attr, value); in sfp_hwmon_read()
1272 struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work); in sfp_hwmon_probe() local
1275 err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag)); in sfp_hwmon_probe()
1277 if (sfp->hwmon_tries--) { in sfp_hwmon_probe()
1278 mod_delayed_work(system_wq, &sfp->hwmon_probe, in sfp_hwmon_probe()
1281 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_hwmon_probe()
1286 sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL); in sfp_hwmon_probe()
1287 if (!sfp->hwmon_name) { in sfp_hwmon_probe()
1288 dev_err(sfp->dev, "out of memory for hwmon name\n"); in sfp_hwmon_probe()
1292 for (i = 0; sfp->hwmon_name[i]; i++) in sfp_hwmon_probe()
1293 if (hwmon_is_bad_char(sfp->hwmon_name[i])) in sfp_hwmon_probe()
1294 sfp->hwmon_name[i] = '_'; in sfp_hwmon_probe()
1296 sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev, in sfp_hwmon_probe()
1297 sfp->hwmon_name, sfp, in sfp_hwmon_probe()
1300 if (IS_ERR(sfp->hwmon_dev)) in sfp_hwmon_probe()
1301 dev_err(sfp->dev, "failed to register hwmon device: %ld\n", in sfp_hwmon_probe()
1302 PTR_ERR(sfp->hwmon_dev)); in sfp_hwmon_probe()
1305 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1307 if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE) in sfp_hwmon_insert()
1310 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) in sfp_hwmon_insert()
1313 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_hwmon_insert()
1319 mod_delayed_work(system_wq, &sfp->hwmon_probe, 1); in sfp_hwmon_insert()
1320 sfp->hwmon_tries = R_PROBE_RETRY_SLOW; in sfp_hwmon_insert()
1325 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1327 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_remove()
1328 if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) { in sfp_hwmon_remove()
1329 hwmon_device_unregister(sfp->hwmon_dev); in sfp_hwmon_remove()
1330 sfp->hwmon_dev = NULL; in sfp_hwmon_remove()
1331 kfree(sfp->hwmon_name); in sfp_hwmon_remove()
1335 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1337 INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe); in sfp_hwmon_init()
1342 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1344 cancel_delayed_work_sync(&sfp->hwmon_probe); in sfp_hwmon_exit()
1347 static int sfp_hwmon_insert(struct sfp *sfp) in sfp_hwmon_insert() argument
1352 static void sfp_hwmon_remove(struct sfp *sfp) in sfp_hwmon_remove() argument
1356 static int sfp_hwmon_init(struct sfp *sfp) in sfp_hwmon_init() argument
1361 static void sfp_hwmon_exit(struct sfp *sfp) in sfp_hwmon_exit() argument
1367 static void sfp_module_tx_disable(struct sfp *sfp) in sfp_module_tx_disable() argument
1369 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_disable()
1370 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 1); in sfp_module_tx_disable()
1371 sfp->state |= SFP_F_TX_DISABLE; in sfp_module_tx_disable()
1372 sfp_set_state(sfp, sfp->state); in sfp_module_tx_disable()
1375 static void sfp_module_tx_enable(struct sfp *sfp) in sfp_module_tx_enable() argument
1377 dev_dbg(sfp->dev, "tx disable %u -> %u\n", in sfp_module_tx_enable()
1378 sfp->state & SFP_F_TX_DISABLE ? 1 : 0, 0); in sfp_module_tx_enable()
1379 sfp->state &= ~SFP_F_TX_DISABLE; in sfp_module_tx_enable()
1380 sfp_set_state(sfp, sfp->state); in sfp_module_tx_enable()
1383 static void sfp_module_tx_fault_reset(struct sfp *sfp) in sfp_module_tx_fault_reset() argument
1385 unsigned int state = sfp->state; in sfp_module_tx_fault_reset()
1390 sfp_set_state(sfp, state | SFP_F_TX_DISABLE); in sfp_module_tx_fault_reset()
1394 sfp_set_state(sfp, state); in sfp_module_tx_fault_reset()
1397 /* SFP state machine */
1398 static void sfp_sm_set_timer(struct sfp *sfp, unsigned int timeout) in sfp_sm_set_timer() argument
1401 mod_delayed_work(system_power_efficient_wq, &sfp->timeout, in sfp_sm_set_timer()
1404 cancel_delayed_work(&sfp->timeout); in sfp_sm_set_timer()
1407 static void sfp_sm_next(struct sfp *sfp, unsigned int state, in sfp_sm_next() argument
1410 sfp->sm_state = state; in sfp_sm_next()
1411 sfp_sm_set_timer(sfp, timeout); in sfp_sm_next()
1414 static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state, in sfp_sm_mod_next() argument
1417 sfp->sm_mod_state = state; in sfp_sm_mod_next()
1418 sfp_sm_set_timer(sfp, timeout); in sfp_sm_mod_next()
1421 static void sfp_sm_phy_detach(struct sfp *sfp) in sfp_sm_phy_detach() argument
1423 sfp_remove_phy(sfp->sfp_bus); in sfp_sm_phy_detach()
1424 phy_device_remove(sfp->mod_phy); in sfp_sm_phy_detach()
1425 phy_device_free(sfp->mod_phy); in sfp_sm_phy_detach()
1426 sfp->mod_phy = NULL; in sfp_sm_phy_detach()
1429 static int sfp_sm_probe_phy(struct sfp *sfp, bool is_c45) in sfp_sm_probe_phy() argument
1434 phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45); in sfp_sm_probe_phy()
1438 dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy)); in sfp_sm_probe_phy()
1445 dev_err(sfp->dev, "phy_device_register failed: %d\n", err); in sfp_sm_probe_phy()
1449 err = sfp_add_phy(sfp->sfp_bus, phy); in sfp_sm_probe_phy()
1453 dev_err(sfp->dev, "sfp_add_phy failed: %d\n", err); in sfp_sm_probe_phy()
1457 sfp->mod_phy = phy; in sfp_sm_probe_phy()
1462 static void sfp_sm_link_up(struct sfp *sfp) in sfp_sm_link_up() argument
1464 sfp_link_up(sfp->sfp_bus); in sfp_sm_link_up()
1465 sfp_sm_next(sfp, SFP_S_LINK_UP, 0); in sfp_sm_link_up()
1468 static void sfp_sm_link_down(struct sfp *sfp) in sfp_sm_link_down() argument
1470 sfp_link_down(sfp->sfp_bus); in sfp_sm_link_down()
1473 static void sfp_sm_link_check_los(struct sfp *sfp) in sfp_sm_link_check_los() argument
1475 unsigned int los = sfp->state & SFP_F_LOS; in sfp_sm_link_check_los()
1480 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_INVERTED)) in sfp_sm_link_check_los()
1482 else if (!(sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_NORMAL))) in sfp_sm_link_check_los()
1486 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_link_check_los()
1488 sfp_sm_link_up(sfp); in sfp_sm_link_check_los()
1491 static bool sfp_los_event_active(struct sfp *sfp, unsigned int event) in sfp_los_event_active() argument
1493 return (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_INVERTED) && in sfp_los_event_active()
1495 (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_NORMAL) && in sfp_los_event_active()
1499 static bool sfp_los_event_inactive(struct sfp *sfp, unsigned int event) in sfp_los_event_inactive() argument
1501 return (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_INVERTED) && in sfp_los_event_inactive()
1503 (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_LOS_NORMAL) && in sfp_los_event_inactive()
1507 static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn) in sfp_sm_fault() argument
1509 if (sfp->sm_fault_retries && !--sfp->sm_fault_retries) { in sfp_sm_fault()
1510 dev_err(sfp->dev, in sfp_sm_fault()
1512 sfp_sm_next(sfp, SFP_S_TX_DISABLE, 0); in sfp_sm_fault()
1515 dev_err(sfp->dev, "module transmit fault indicated\n"); in sfp_sm_fault()
1517 sfp_sm_next(sfp, next_state, T_FAULT_RECOVER); in sfp_sm_fault()
1521 /* Probe a SFP for a PHY device if the module supports copper - the PHY
1525 * Clause 22 copper SFP modules normally operate in Cisco SGMII mode with
1529 * Clause 45 copper SFP+ modules (10G) appear to switch their interface
1532 static int sfp_sm_probe_for_phy(struct sfp *sfp) in sfp_sm_probe_for_phy() argument
1536 switch (sfp->id.base.extended_cc) { in sfp_sm_probe_for_phy()
1541 err = sfp_sm_probe_phy(sfp, true); in sfp_sm_probe_for_phy()
1545 if (sfp->id.base.e1000_base_t) in sfp_sm_probe_for_phy()
1546 err = sfp_sm_probe_phy(sfp, false); in sfp_sm_probe_for_phy()
1552 static int sfp_module_parse_power(struct sfp *sfp) in sfp_module_parse_power() argument
1556 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) in sfp_module_parse_power()
1558 if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) in sfp_module_parse_power()
1561 if (power_mW > sfp->max_power_mW) { in sfp_module_parse_power()
1563 if (sfp->id.ext.sff8472_compliance == in sfp_module_parse_power()
1565 !(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) { in sfp_module_parse_power()
1570 dev_err(sfp->dev, in sfp_module_parse_power()
1575 dev_warn(sfp->dev, in sfp_module_parse_power()
1586 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE && power_mW > 1000) { in sfp_module_parse_power()
1587 dev_warn(sfp->dev, in sfp_module_parse_power()
1593 sfp->module_power_mW = power_mW; in sfp_module_parse_power()
1598 static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable) in sfp_sm_mod_hpower() argument
1603 err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1605 dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1621 err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val)); in sfp_sm_mod_hpower()
1623 dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err); in sfp_sm_mod_hpower()
1628 dev_info(sfp->dev, "Module switched to %u.%uW power level\n", in sfp_sm_mod_hpower()
1629 sfp->module_power_mW / 1000, in sfp_sm_mod_hpower()
1630 (sfp->module_power_mW / 100) % 10); in sfp_sm_mod_hpower()
1635 static int sfp_cotsworks_fixup_check(struct sfp *sfp, struct sfp_eeprom_id *id) in sfp_cotsworks_fixup_check() argument
1643 dev_warn(sfp->dev, "Rewriting fiber module EEPROM with corrected values\n"); in sfp_cotsworks_fixup_check()
1647 err = sfp_write(sfp, false, SFP_PHYS_ID, &id->base, 3); in sfp_cotsworks_fixup_check()
1649 dev_err(sfp->dev, "Failed to rewrite module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1658 err = sfp_write(sfp, false, SFP_CC_BASE, &check, 1); in sfp_cotsworks_fixup_check()
1660 dev_err(sfp->dev, "Failed to update base structure checksum in fiber module EEPROM: %d\n", err); in sfp_cotsworks_fixup_check()
1667 static int sfp_sm_mod_probe(struct sfp *sfp, bool report) in sfp_sm_mod_probe() argument
1669 /* SFP module inserted - read I2C data */ in sfp_sm_mod_probe()
1676 ret = sfp_read(sfp, false, 0, &id, sizeof(id)); in sfp_sm_mod_probe()
1679 dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); in sfp_sm_mod_probe()
1684 dev_err(sfp->dev, "EEPROM short read: %d\n", ret); in sfp_sm_mod_probe()
1700 ret = sfp_cotsworks_fixup_check(sfp, &id); in sfp_sm_mod_probe()
1709 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1713 dev_err(sfp->dev, in sfp_sm_mod_probe()
1716 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1725 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1729 dev_err(sfp->dev, in sfp_sm_mod_probe()
1732 print_hex_dump(KERN_ERR, "sfp EE: ", DUMP_PREFIX_OFFSET, in sfp_sm_mod_probe()
1738 sfp->id = id; in sfp_sm_mod_probe()
1740 dev_info(sfp->dev, "module %.*s %.*s rev %.*s sn %.*s dc %.*s\n", in sfp_sm_mod_probe()
1748 if (!sfp->type->module_supported(&id)) { in sfp_sm_mod_probe()
1749 dev_err(sfp->dev, in sfp_sm_mod_probe()
1751 sfp->id.base.phys_id, sfp->id.base.phys_ext_id); in sfp_sm_mod_probe()
1756 if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) in sfp_sm_mod_probe()
1757 dev_warn(sfp->dev, in sfp_sm_mod_probe()
1761 ret = sfp_module_parse_power(sfp); in sfp_sm_mod_probe()
1767 sfp->module_t_start_up = T_START_UP_BAD_GPON; in sfp_sm_mod_probe()
1769 sfp->module_t_start_up = T_START_UP; in sfp_sm_mod_probe()
1774 static void sfp_sm_mod_remove(struct sfp *sfp) in sfp_sm_mod_remove() argument
1776 if (sfp->sm_mod_state > SFP_MOD_WAITDEV) in sfp_sm_mod_remove()
1777 sfp_module_remove(sfp->sfp_bus); in sfp_sm_mod_remove()
1779 sfp_hwmon_remove(sfp); in sfp_sm_mod_remove()
1781 memset(&sfp->id, 0, sizeof(sfp->id)); in sfp_sm_mod_remove()
1782 sfp->module_power_mW = 0; in sfp_sm_mod_remove()
1784 dev_info(sfp->dev, "module removed\n"); in sfp_sm_mod_remove()
1788 static void sfp_sm_device(struct sfp *sfp, unsigned int event) in sfp_sm_device() argument
1790 switch (sfp->sm_dev_state) { in sfp_sm_device()
1793 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1798 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1800 sfp->sm_dev_state = SFP_DEV_UP; in sfp_sm_device()
1805 sfp->sm_dev_state = SFP_DEV_DETACHED; in sfp_sm_device()
1807 sfp->sm_dev_state = SFP_DEV_DOWN; in sfp_sm_device()
1815 static void sfp_sm_module(struct sfp *sfp, unsigned int event) in sfp_sm_module() argument
1821 if (sfp->sm_mod_state > SFP_MOD_PROBE) in sfp_sm_module()
1822 sfp_sm_mod_remove(sfp); in sfp_sm_module()
1823 sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); in sfp_sm_module()
1828 if (sfp->sm_dev_state < SFP_DEV_DOWN && in sfp_sm_module()
1829 sfp->sm_mod_state > SFP_MOD_WAITDEV) { in sfp_sm_module()
1830 if (sfp->module_power_mW > 1000 && in sfp_sm_module()
1831 sfp->sm_mod_state > SFP_MOD_HPOWER) in sfp_sm_module()
1832 sfp_sm_mod_hpower(sfp, false); in sfp_sm_module()
1833 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
1837 switch (sfp->sm_mod_state) { in sfp_sm_module()
1840 sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL); in sfp_sm_module()
1841 sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT; in sfp_sm_module()
1842 sfp->sm_mod_tries = R_PROBE_RETRY_SLOW; in sfp_sm_module()
1851 err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1); in sfp_sm_module()
1853 if (sfp->sm_mod_tries_init && in sfp_sm_module()
1854 --sfp->sm_mod_tries_init) { in sfp_sm_module()
1855 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
1857 } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) { in sfp_sm_module()
1858 if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1) in sfp_sm_module()
1859 dev_warn(sfp->dev, in sfp_sm_module()
1861 sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW); in sfp_sm_module()
1866 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
1870 err = sfp_hwmon_insert(sfp); in sfp_sm_module()
1872 dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); in sfp_sm_module()
1874 sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); in sfp_sm_module()
1878 if (sfp->sm_dev_state < SFP_DEV_DOWN) in sfp_sm_module()
1882 err = sfp_module_insert(sfp->sfp_bus, &sfp->id); in sfp_sm_module()
1884 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
1889 if (sfp->module_power_mW <= 1000) in sfp_sm_module()
1892 sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0); in sfp_sm_module()
1896 err = sfp_sm_mod_hpower(sfp, true); in sfp_sm_module()
1899 sfp_module_remove(sfp->sfp_bus); in sfp_sm_module()
1900 sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0); in sfp_sm_module()
1902 sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT); in sfp_sm_module()
1907 sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL); in sfp_sm_module()
1916 sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0); in sfp_sm_module()
1925 static void sfp_sm_main(struct sfp *sfp, unsigned int event) in sfp_sm_main() argument
1931 if (sfp->sm_state != SFP_S_DOWN && in sfp_sm_main()
1932 (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
1933 sfp->sm_dev_state != SFP_DEV_UP)) { in sfp_sm_main()
1934 if (sfp->sm_state == SFP_S_LINK_UP && in sfp_sm_main()
1935 sfp->sm_dev_state == SFP_DEV_UP) in sfp_sm_main()
1936 sfp_sm_link_down(sfp); in sfp_sm_main()
1937 if (sfp->sm_state > SFP_S_INIT) in sfp_sm_main()
1938 sfp_module_stop(sfp->sfp_bus); in sfp_sm_main()
1939 if (sfp->mod_phy) in sfp_sm_main()
1940 sfp_sm_phy_detach(sfp); in sfp_sm_main()
1941 sfp_module_tx_disable(sfp); in sfp_sm_main()
1942 sfp_soft_stop_poll(sfp); in sfp_sm_main()
1943 sfp_sm_next(sfp, SFP_S_DOWN, 0); in sfp_sm_main()
1948 switch (sfp->sm_state) { in sfp_sm_main()
1950 if (sfp->sm_mod_state != SFP_MOD_PRESENT || in sfp_sm_main()
1951 sfp->sm_dev_state != SFP_DEV_UP) in sfp_sm_main()
1954 if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) in sfp_sm_main()
1955 sfp_soft_start_poll(sfp); in sfp_sm_main()
1957 sfp_module_tx_enable(sfp); in sfp_sm_main()
1960 sfp->sm_fault_retries = N_FAULT_INIT; in sfp_sm_main()
1966 sfp_sm_next(sfp, SFP_S_WAIT, T_WAIT); in sfp_sm_main()
1973 if (sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
1979 timeout = sfp->module_t_start_up; in sfp_sm_main()
1985 sfp_sm_next(sfp, SFP_S_INIT, timeout); in sfp_sm_main()
1995 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
1999 sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT, in sfp_sm_main()
2000 sfp->sm_fault_retries == N_FAULT_INIT); in sfp_sm_main()
2003 sfp->sm_phy_retries = R_PHY_RETRY; in sfp_sm_main()
2015 ret = sfp_sm_probe_for_phy(sfp); in sfp_sm_main()
2017 if (--sfp->sm_phy_retries) { in sfp_sm_main()
2018 sfp_sm_next(sfp, SFP_S_INIT_PHY, T_PHY_RETRY); in sfp_sm_main()
2021 dev_info(sfp->dev, "no PHY detected\n"); in sfp_sm_main()
2024 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2027 if (sfp_module_start(sfp->sfp_bus)) { in sfp_sm_main()
2028 sfp_sm_next(sfp, SFP_S_FAIL, 0); in sfp_sm_main()
2031 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2034 sfp->sm_fault_retries = N_FAULT; in sfp_sm_main()
2039 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2040 sfp_sm_next(sfp, SFP_S_INIT, sfp->module_t_start_up); in sfp_sm_main()
2046 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2047 else if (sfp_los_event_inactive(sfp, event)) in sfp_sm_main()
2048 sfp_sm_link_up(sfp); in sfp_sm_main()
2053 sfp_sm_link_down(sfp); in sfp_sm_main()
2054 sfp_sm_fault(sfp, SFP_S_TX_FAULT, true); in sfp_sm_main()
2055 } else if (sfp_los_event_active(sfp, event)) { in sfp_sm_main()
2056 sfp_sm_link_down(sfp); in sfp_sm_main()
2057 sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0); in sfp_sm_main()
2063 sfp_module_tx_fault_reset(sfp); in sfp_sm_main()
2064 sfp_sm_next(sfp, SFP_S_REINIT, sfp->module_t_start_up); in sfp_sm_main()
2069 if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) { in sfp_sm_main()
2070 sfp_sm_fault(sfp, SFP_S_TX_FAULT, false); in sfp_sm_main()
2072 dev_info(sfp->dev, "module transmit fault recovered\n"); in sfp_sm_main()
2073 sfp_sm_link_check_los(sfp); in sfp_sm_main()
2082 static void sfp_sm_event(struct sfp *sfp, unsigned int event) in sfp_sm_event() argument
2084 mutex_lock(&sfp->sm_mutex); in sfp_sm_event()
2086 dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n", in sfp_sm_event()
2087 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2088 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2089 sm_state_to_str(sfp->sm_state), in sfp_sm_event()
2092 sfp_sm_device(sfp, event); in sfp_sm_event()
2093 sfp_sm_module(sfp, event); in sfp_sm_event()
2094 sfp_sm_main(sfp, event); in sfp_sm_event()
2096 dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n", in sfp_sm_event()
2097 mod_state_to_str(sfp->sm_mod_state), in sfp_sm_event()
2098 dev_state_to_str(sfp->sm_dev_state), in sfp_sm_event()
2099 sm_state_to_str(sfp->sm_state)); in sfp_sm_event()
2101 mutex_unlock(&sfp->sm_mutex); in sfp_sm_event()
2104 static void sfp_attach(struct sfp *sfp) in sfp_attach() argument
2106 sfp_sm_event(sfp, SFP_E_DEV_ATTACH); in sfp_attach()
2109 static void sfp_detach(struct sfp *sfp) in sfp_detach() argument
2111 sfp_sm_event(sfp, SFP_E_DEV_DETACH); in sfp_detach()
2114 static void sfp_start(struct sfp *sfp) in sfp_start() argument
2116 sfp_sm_event(sfp, SFP_E_DEV_UP); in sfp_start()
2119 static void sfp_stop(struct sfp *sfp) in sfp_stop() argument
2121 sfp_sm_event(sfp, SFP_E_DEV_DOWN); in sfp_stop()
2124 static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo) in sfp_module_info() argument
2128 if (sfp->id.ext.sff8472_compliance && in sfp_module_info()
2129 !(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)) { in sfp_module_info()
2139 static int sfp_module_eeprom(struct sfp *sfp, struct ethtool_eeprom *ee, in sfp_module_eeprom() argument
2154 ret = sfp_read(sfp, false, first, data, len); in sfp_module_eeprom()
2166 ret = sfp_read(sfp, true, first, data, len); in sfp_module_eeprom()
2184 struct sfp *sfp = container_of(work, struct sfp, timeout.work); in sfp_timeout() local
2187 sfp_sm_event(sfp, SFP_E_TIMEOUT); in sfp_timeout()
2191 static void sfp_check_state(struct sfp *sfp) in sfp_check_state() argument
2195 mutex_lock(&sfp->st_mutex); in sfp_check_state()
2196 state = sfp_get_state(sfp); in sfp_check_state()
2197 changed = state ^ sfp->state; in sfp_check_state()
2202 dev_dbg(sfp->dev, "%s %u -> %u\n", gpio_of_names[i], in sfp_check_state()
2203 !!(sfp->state & BIT(i)), !!(state & BIT(i))); in sfp_check_state()
2205 state |= sfp->state & (SFP_F_TX_DISABLE | SFP_F_RATE_SELECT); in sfp_check_state()
2206 sfp->state = state; in sfp_check_state()
2210 sfp_sm_event(sfp, state & SFP_F_PRESENT ? in sfp_check_state()
2214 sfp_sm_event(sfp, state & SFP_F_TX_FAULT ? in sfp_check_state()
2218 sfp_sm_event(sfp, state & SFP_F_LOS ? in sfp_check_state()
2221 mutex_unlock(&sfp->st_mutex); in sfp_check_state()
2226 struct sfp *sfp = data; in sfp_irq() local
2228 sfp_check_state(sfp); in sfp_irq()
2235 struct sfp *sfp = container_of(work, struct sfp, poll.work); in sfp_poll() local
2237 sfp_check_state(sfp); in sfp_poll()
2239 if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) || in sfp_poll()
2240 sfp->need_poll) in sfp_poll()
2241 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_poll()
2244 static struct sfp *sfp_alloc(struct device *dev) in sfp_alloc()
2246 struct sfp *sfp; in sfp_alloc() local
2248 sfp = kzalloc(sizeof(*sfp), GFP_KERNEL); in sfp_alloc()
2249 if (!sfp) in sfp_alloc()
2252 sfp->dev = dev; in sfp_alloc()
2254 mutex_init(&sfp->sm_mutex); in sfp_alloc()
2255 mutex_init(&sfp->st_mutex); in sfp_alloc()
2256 INIT_DELAYED_WORK(&sfp->poll, sfp_poll); in sfp_alloc()
2257 INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout); in sfp_alloc()
2259 sfp_hwmon_init(sfp); in sfp_alloc()
2261 return sfp; in sfp_alloc()
2266 struct sfp *sfp = data; in sfp_cleanup() local
2268 sfp_hwmon_exit(sfp); in sfp_cleanup()
2270 cancel_delayed_work_sync(&sfp->poll); in sfp_cleanup()
2271 cancel_delayed_work_sync(&sfp->timeout); in sfp_cleanup()
2272 if (sfp->i2c_mii) { in sfp_cleanup()
2273 mdiobus_unregister(sfp->i2c_mii); in sfp_cleanup()
2274 mdiobus_free(sfp->i2c_mii); in sfp_cleanup()
2276 if (sfp->i2c) in sfp_cleanup()
2277 i2c_put_adapter(sfp->i2c); in sfp_cleanup()
2278 kfree(sfp); in sfp_cleanup()
2286 struct sfp *sfp; in sfp_probe() local
2289 sfp = sfp_alloc(&pdev->dev); in sfp_probe()
2290 if (IS_ERR(sfp)) in sfp_probe()
2291 return PTR_ERR(sfp); in sfp_probe()
2293 platform_set_drvdata(pdev, sfp); in sfp_probe()
2295 err = devm_add_action(sfp->dev, sfp_cleanup, sfp); in sfp_probe()
2299 sff = sfp->type = &sfp_data; in sfp_probe()
2310 sff = sfp->type = id->data; in sfp_probe()
2314 dev_err(sfp->dev, "missing 'i2c-bus' property\n"); in sfp_probe()
2342 err = sfp_i2c_configure(sfp, i2c); in sfp_probe()
2350 sfp->gpio[i] = devm_gpiod_get_optional(sfp->dev, in sfp_probe()
2352 if (IS_ERR(sfp->gpio[i])) in sfp_probe()
2353 return PTR_ERR(sfp->gpio[i]); in sfp_probe()
2356 sfp->get_state = sfp_gpio_get_state; in sfp_probe()
2357 sfp->set_state = sfp_gpio_set_state; in sfp_probe()
2360 if (!(sfp->gpio[GPIO_MODDEF0])) in sfp_probe()
2361 sfp->get_state = sff_gpio_get_state; in sfp_probe()
2364 &sfp->max_power_mW); in sfp_probe()
2365 if (!sfp->max_power_mW) in sfp_probe()
2366 sfp->max_power_mW = 1000; in sfp_probe()
2368 dev_info(sfp->dev, "Host maximum power %u.%uW\n", in sfp_probe()
2369 sfp->max_power_mW / 1000, (sfp->max_power_mW / 100) % 10); in sfp_probe()
2374 sfp->state = sfp_get_state(sfp) | SFP_F_TX_DISABLE; in sfp_probe()
2376 if (sfp->gpio[GPIO_RATE_SELECT] && in sfp_probe()
2377 gpiod_get_value_cansleep(sfp->gpio[GPIO_RATE_SELECT])) in sfp_probe()
2378 sfp->state |= SFP_F_RATE_SELECT; in sfp_probe()
2379 sfp_set_state(sfp, sfp->state); in sfp_probe()
2380 sfp_module_tx_disable(sfp); in sfp_probe()
2381 if (sfp->state & SFP_F_PRESENT) { in sfp_probe()
2383 sfp_sm_event(sfp, SFP_E_INSERT); in sfp_probe()
2388 if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i]) in sfp_probe()
2391 sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]); in sfp_probe()
2392 if (sfp->gpio_irq[i] < 0) { in sfp_probe()
2393 sfp->gpio_irq[i] = 0; in sfp_probe()
2394 sfp->need_poll = true; in sfp_probe()
2398 sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL, in sfp_probe()
2399 "%s-%s", dev_name(sfp->dev), in sfp_probe()
2405 err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i], in sfp_probe()
2410 sfp_irq_name, sfp); in sfp_probe()
2412 sfp->gpio_irq[i] = 0; in sfp_probe()
2413 sfp->need_poll = true; in sfp_probe()
2417 if (sfp->need_poll) in sfp_probe()
2418 mod_delayed_work(system_wq, &sfp->poll, poll_jiffies); in sfp_probe()
2425 if (!sfp->gpio[GPIO_TX_DISABLE]) in sfp_probe()
2426 dev_warn(sfp->dev, in sfp_probe()
2427 "No tx_disable pin: SFP modules will always be emitting.\n"); in sfp_probe()
2429 sfp->sfp_bus = sfp_register_socket(sfp->dev, sfp, &sfp_module_ops); in sfp_probe()
2430 if (!sfp->sfp_bus) in sfp_probe()
2438 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_remove() local
2440 sfp_unregister_socket(sfp->sfp_bus); in sfp_remove()
2443 sfp_sm_event(sfp, SFP_E_REMOVE); in sfp_remove()
2451 struct sfp *sfp = platform_get_drvdata(pdev); in sfp_shutdown() local
2455 if (!sfp->gpio_irq[i]) in sfp_shutdown()
2458 devm_free_irq(sfp->dev, sfp->gpio_irq[i], sfp); in sfp_shutdown()
2461 cancel_delayed_work_sync(&sfp->poll); in sfp_shutdown()
2462 cancel_delayed_work_sync(&sfp->timeout); in sfp_shutdown()
2470 .name = "sfp",
2489 MODULE_ALIAS("platform:sfp");