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path: root/drivers/net/ethernet/microchip/lan743x_ptp.c
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Diffstat (limited to 'drivers/net/ethernet/microchip/lan743x_ptp.c')
-rw-r--r--drivers/net/ethernet/microchip/lan743x_ptp.c1113
1 files changed, 875 insertions, 238 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
index b2109eca81fd..a3b48388b3fd 100644
--- a/drivers/net/ethernet/microchip/lan743x_ptp.c
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
@@ -2,16 +2,18 @@
/* Copyright (C) 2018 Microchip Technology Inc. */
#include <linux/netdevice.h>
-#include "lan743x_main.h"
#include <linux/ptp_clock_kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/net_tstamp.h>
+#include "lan743x_main.h"
#include "lan743x_ptp.h"
-#define LAN743X_NUMBER_OF_GPIO (12)
+#define LAN743X_LED0_ENABLE 20 /* LED0 offset in HW_CFG */
+#define LAN743X_LED_ENABLE(pin) BIT(LAN743X_LED0_ENABLE + (pin))
+
#define LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB (31249999)
#define LAN743X_PTP_MAX_FINE_ADJ_IN_SCALED_PPM (2047999934)
@@ -23,6 +25,18 @@ static void lan743x_ptp_clock_set(struct lan743x_adapter *adapter,
u32 seconds, u32 nano_seconds,
u32 sub_nano_seconds);
+static int lan743x_get_channel(u32 ch_map)
+{
+ int idx;
+
+ for (idx = 0; idx < 32; idx++) {
+ if (ch_map & (0x1 << idx))
+ return idx;
+ }
+
+ return -EINVAL;
+}
+
int lan743x_gpio_init(struct lan743x_adapter *adapter)
{
struct lan743x_gpio *gpio = &adapter->gpio;
@@ -44,7 +58,7 @@ int lan743x_gpio_init(struct lan743x_adapter *adapter)
static void lan743x_ptp_wait_till_cmd_done(struct lan743x_adapter *adapter,
u32 bit_mask)
{
- int timeout = 1000;
+ int timeout = PTP_CMD_CTL_TIMEOUT_CNT;
u32 data = 0;
while (timeout &&
@@ -139,19 +153,20 @@ done:
spin_unlock_bh(&ptp->tx_ts_lock);
}
-static int lan743x_ptp_reserve_event_ch(struct lan743x_adapter *adapter)
+static int lan743x_ptp_reserve_event_ch(struct lan743x_adapter *adapter,
+ int event_channel)
{
struct lan743x_ptp *ptp = &adapter->ptp;
int result = -ENODEV;
- int index = 0;
mutex_lock(&ptp->command_lock);
- for (index = 0; index < LAN743X_PTP_NUMBER_OF_EVENT_CHANNELS; index++) {
- if (!(test_bit(index, &ptp->used_event_ch))) {
- ptp->used_event_ch |= BIT(index);
- result = index;
- break;
- }
+ if (!(test_bit(event_channel, &ptp->used_event_ch))) {
+ ptp->used_event_ch |= BIT(event_channel);
+ result = event_channel;
+ } else {
+ netif_warn(adapter, drv, adapter->netdev,
+ "attempted to reserved a used event_channel = %d\n",
+ event_channel);
}
mutex_unlock(&ptp->command_lock);
return result;
@@ -176,15 +191,67 @@ static void lan743x_ptp_release_event_ch(struct lan743x_adapter *adapter,
static void lan743x_ptp_clock_get(struct lan743x_adapter *adapter,
u32 *seconds, u32 *nano_seconds,
u32 *sub_nano_seconds);
+static void lan743x_ptp_io_clock_get(struct lan743x_adapter *adapter,
+ u32 *sec, u32 *nsec, u32 *sub_nsec);
static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter,
s64 time_step_ns);
+static void lan743x_led_mux_enable(struct lan743x_adapter *adapter,
+ int pin, bool enable)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+
+ if (ptp->leds_multiplexed &&
+ ptp->led_enabled[pin]) {
+ u32 val = lan743x_csr_read(adapter, HW_CFG);
+
+ if (enable)
+ val |= LAN743X_LED_ENABLE(pin);
+ else
+ val &= ~LAN743X_LED_ENABLE(pin);
+
+ lan743x_csr_write(adapter, HW_CFG, val);
+ }
+}
+
+static void lan743x_led_mux_save(struct lan743x_adapter *adapter)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ u32 id_rev = adapter->csr.id_rev & ID_REV_ID_MASK_;
+
+ if (id_rev == ID_REV_ID_LAN7430_) {
+ int i;
+ u32 val = lan743x_csr_read(adapter, HW_CFG);
+
+ for (i = 0; i < LAN7430_N_LED; i++) {
+ bool led_enabled = (val & LAN743X_LED_ENABLE(i)) != 0;
+
+ ptp->led_enabled[i] = led_enabled;
+ }
+ ptp->leds_multiplexed = true;
+ } else {
+ ptp->leds_multiplexed = false;
+ }
+}
+
+static void lan743x_led_mux_restore(struct lan743x_adapter *adapter)
+{
+ u32 id_rev = adapter->csr.id_rev & ID_REV_ID_MASK_;
+
+ if (id_rev == ID_REV_ID_LAN7430_) {
+ int i;
+
+ for (i = 0; i < LAN7430_N_LED; i++)
+ lan743x_led_mux_enable(adapter, i, true);
+ }
+}
+
static int lan743x_gpio_rsrv_ptp_out(struct lan743x_adapter *adapter,
- int bit, int ptp_channel)
+ int pin, int event_channel)
{
struct lan743x_gpio *gpio = &adapter->gpio;
unsigned long irq_flags = 0;
- int bit_mask = BIT(bit);
+ int bit_mask = BIT(pin);
int ret = -EBUSY;
spin_lock_irqsave(&gpio->gpio_lock, irq_flags);
@@ -194,41 +261,44 @@ static int lan743x_gpio_rsrv_ptp_out(struct lan743x_adapter *adapter,
gpio->output_bits |= bit_mask;
gpio->ptp_bits |= bit_mask;
+ /* assign pin to GPIO function */
+ lan743x_led_mux_enable(adapter, pin, false);
+
/* set as output, and zero initial value */
- gpio->gpio_cfg0 |= GPIO_CFG0_GPIO_DIR_BIT_(bit);
- gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DATA_BIT_(bit);
+ gpio->gpio_cfg0 |= GPIO_CFG0_GPIO_DIR_BIT_(pin);
+ gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DATA_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG0, gpio->gpio_cfg0);
/* enable gpio, and set buffer type to push pull */
- gpio->gpio_cfg1 &= ~GPIO_CFG1_GPIOEN_BIT_(bit);
- gpio->gpio_cfg1 |= GPIO_CFG1_GPIOBUF_BIT_(bit);
+ gpio->gpio_cfg1 &= ~GPIO_CFG1_GPIOEN_BIT_(pin);
+ gpio->gpio_cfg1 |= GPIO_CFG1_GPIOBUF_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG1, gpio->gpio_cfg1);
/* set 1588 polarity to high */
- gpio->gpio_cfg2 |= GPIO_CFG2_1588_POL_BIT_(bit);
+ gpio->gpio_cfg2 |= GPIO_CFG2_1588_POL_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG2, gpio->gpio_cfg2);
- if (!ptp_channel) {
+ if (event_channel == 0) {
/* use channel A */
- gpio->gpio_cfg3 &= ~GPIO_CFG3_1588_CH_SEL_BIT_(bit);
+ gpio->gpio_cfg3 &= ~GPIO_CFG3_1588_CH_SEL_BIT_(pin);
} else {
/* use channel B */
- gpio->gpio_cfg3 |= GPIO_CFG3_1588_CH_SEL_BIT_(bit);
+ gpio->gpio_cfg3 |= GPIO_CFG3_1588_CH_SEL_BIT_(pin);
}
- gpio->gpio_cfg3 |= GPIO_CFG3_1588_OE_BIT_(bit);
+ gpio->gpio_cfg3 |= GPIO_CFG3_1588_OE_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG3, gpio->gpio_cfg3);
- ret = bit;
+ ret = pin;
}
spin_unlock_irqrestore(&gpio->gpio_lock, irq_flags);
return ret;
}
-static void lan743x_gpio_release(struct lan743x_adapter *adapter, int bit)
+static void lan743x_gpio_release(struct lan743x_adapter *adapter, int pin)
{
struct lan743x_gpio *gpio = &adapter->gpio;
unsigned long irq_flags = 0;
- int bit_mask = BIT(bit);
+ int bit_mask = BIT(pin);
spin_lock_irqsave(&gpio->gpio_lock, irq_flags);
if (gpio->used_bits & bit_mask) {
@@ -239,21 +309,24 @@ static void lan743x_gpio_release(struct lan743x_adapter *adapter, int bit)
if (gpio->ptp_bits & bit_mask) {
gpio->ptp_bits &= ~bit_mask;
/* disable ptp output */
- gpio->gpio_cfg3 &= ~GPIO_CFG3_1588_OE_BIT_(bit);
+ gpio->gpio_cfg3 &= ~GPIO_CFG3_1588_OE_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG3,
gpio->gpio_cfg3);
}
/* release gpio output */
/* disable gpio */
- gpio->gpio_cfg1 |= GPIO_CFG1_GPIOEN_BIT_(bit);
- gpio->gpio_cfg1 &= ~GPIO_CFG1_GPIOBUF_BIT_(bit);
+ gpio->gpio_cfg1 |= GPIO_CFG1_GPIOEN_BIT_(pin);
+ gpio->gpio_cfg1 &= ~GPIO_CFG1_GPIOBUF_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG1, gpio->gpio_cfg1);
/* reset back to input */
- gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DIR_BIT_(bit);
- gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DATA_BIT_(bit);
+ gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DIR_BIT_(pin);
+ gpio->gpio_cfg0 &= ~GPIO_CFG0_GPIO_DATA_BIT_(pin);
lan743x_csr_write(adapter, GPIO_CFG0, gpio->gpio_cfg0);
+
+ /* assign pin to original function */
+ lan743x_led_mux_enable(adapter, pin, true);
}
}
spin_unlock_irqrestore(&gpio->gpio_lock, irq_flags);
@@ -266,59 +339,18 @@ static int lan743x_ptpci_adjfine(struct ptp_clock_info *ptpci, long scaled_ppm)
struct lan743x_adapter *adapter =
container_of(ptp, struct lan743x_adapter, ptp);
u32 lan743x_rate_adj = 0;
- bool positive = true;
- u64 u64_delta = 0;
+ u64 u64_delta;
if ((scaled_ppm < (-LAN743X_PTP_MAX_FINE_ADJ_IN_SCALED_PPM)) ||
scaled_ppm > LAN743X_PTP_MAX_FINE_ADJ_IN_SCALED_PPM) {
return -EINVAL;
}
- if (scaled_ppm > 0) {
- u64_delta = (u64)scaled_ppm;
- positive = true;
- } else {
- u64_delta = (u64)(-scaled_ppm);
- positive = false;
- }
- u64_delta = (u64_delta << 19);
- lan743x_rate_adj = div_u64(u64_delta, 1000000);
-
- if (positive)
- lan743x_rate_adj |= PTP_CLOCK_RATE_ADJ_DIR_;
- lan743x_csr_write(adapter, PTP_CLOCK_RATE_ADJ,
- lan743x_rate_adj);
-
- return 0;
-}
-
-static int lan743x_ptpci_adjfreq(struct ptp_clock_info *ptpci, s32 delta_ppb)
-{
- struct lan743x_ptp *ptp =
- container_of(ptpci, struct lan743x_ptp, ptp_clock_info);
- struct lan743x_adapter *adapter =
- container_of(ptp, struct lan743x_adapter, ptp);
- u32 lan743x_rate_adj = 0;
- bool positive = true;
- u32 u32_delta = 0;
- u64 u64_delta = 0;
-
- if ((delta_ppb < (-LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB)) ||
- delta_ppb > LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB) {
- return -EINVAL;
- }
- if (delta_ppb > 0) {
- u32_delta = (u32)delta_ppb;
- positive = true;
- } else {
- u32_delta = (u32)(-delta_ppb);
- positive = false;
- }
- u64_delta = (((u64)u32_delta) << 35);
- lan743x_rate_adj = div_u64(u64_delta, 1000000000);
-
- if (positive)
- lan743x_rate_adj |= PTP_CLOCK_RATE_ADJ_DIR_;
+ /* diff_by_scaled_ppm returns true if the difference is negative */
+ if (diff_by_scaled_ppm(1ULL << 35, scaled_ppm, &u64_delta))
+ lan743x_rate_adj = (u32)u64_delta;
+ else
+ lan743x_rate_adj = (u32)u64_delta | PTP_CLOCK_RATE_ADJ_DIR_;
lan743x_csr_write(adapter, PTP_CLOCK_RATE_ADJ,
lan743x_rate_adj);
@@ -348,7 +380,11 @@ static int lan743x_ptpci_gettime64(struct ptp_clock_info *ptpci,
u32 nano_seconds = 0;
u32 seconds = 0;
- lan743x_ptp_clock_get(adapter, &seconds, &nano_seconds, NULL);
+ if (adapter->is_pci11x1x)
+ lan743x_ptp_io_clock_get(adapter, &seconds, &nano_seconds,
+ NULL);
+ else
+ lan743x_ptp_clock_get(adapter, &seconds, &nano_seconds, NULL);
ts->tv_sec = seconds;
ts->tv_nsec = nano_seconds;
@@ -365,178 +401,558 @@ static int lan743x_ptpci_settime64(struct ptp_clock_info *ptpci,
u32 nano_seconds = 0;
u32 seconds = 0;
- if (ts) {
- if (ts->tv_sec > 0xFFFFFFFFLL ||
- ts->tv_sec < 0) {
- netif_warn(adapter, drv, adapter->netdev,
- "ts->tv_sec out of range, %lld\n",
- ts->tv_sec);
- return -ERANGE;
- }
- if (ts->tv_nsec >= 1000000000L ||
- ts->tv_nsec < 0) {
- netif_warn(adapter, drv, adapter->netdev,
- "ts->tv_nsec out of range, %ld\n",
- ts->tv_nsec);
- return -ERANGE;
- }
- seconds = ts->tv_sec;
- nano_seconds = ts->tv_nsec;
- lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
- } else {
- netif_warn(adapter, drv, adapter->netdev, "ts == NULL\n");
- return -EINVAL;
+ if (ts->tv_sec > 0xFFFFFFFFLL) {
+ netif_warn(adapter, drv, adapter->netdev,
+ "ts->tv_sec out of range, %lld\n",
+ ts->tv_sec);
+ return -ERANGE;
}
+ if (ts->tv_nsec < 0) {
+ netif_warn(adapter, drv, adapter->netdev,
+ "ts->tv_nsec out of range, %ld\n",
+ ts->tv_nsec);
+ return -ERANGE;
+ }
+ seconds = ts->tv_sec;
+ nano_seconds = ts->tv_nsec;
+ lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
return 0;
}
-static void lan743x_ptp_perout_off(struct lan743x_adapter *adapter)
+static void lan743x_ptp_perout_off(struct lan743x_adapter *adapter,
+ unsigned int index)
{
struct lan743x_ptp *ptp = &adapter->ptp;
u32 general_config = 0;
+ struct lan743x_ptp_perout *perout = &ptp->perout[index];
- if (ptp->perout_gpio_bit >= 0) {
- lan743x_gpio_release(adapter, ptp->perout_gpio_bit);
- ptp->perout_gpio_bit = -1;
+ if (perout->gpio_pin >= 0) {
+ lan743x_gpio_release(adapter, perout->gpio_pin);
+ perout->gpio_pin = -1;
}
- if (ptp->perout_event_ch >= 0) {
+ if (perout->event_ch >= 0) {
/* set target to far in the future, effectively disabling it */
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_SEC_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_SEC_X(perout->event_ch),
0xFFFF0000);
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_NS_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_NS_X(perout->event_ch),
0);
general_config = lan743x_csr_read(adapter, PTP_GENERAL_CONFIG);
general_config |= PTP_GENERAL_CONFIG_RELOAD_ADD_X_
- (ptp->perout_event_ch);
+ (perout->event_ch);
lan743x_csr_write(adapter, PTP_GENERAL_CONFIG, general_config);
- lan743x_ptp_release_event_ch(adapter, ptp->perout_event_ch);
- ptp->perout_event_ch = -1;
+ lan743x_ptp_release_event_ch(adapter, perout->event_ch);
+ perout->event_ch = -1;
}
}
static int lan743x_ptp_perout(struct lan743x_adapter *adapter, int on,
- struct ptp_perout_request *perout)
+ struct ptp_perout_request *perout_request)
{
struct lan743x_ptp *ptp = &adapter->ptp;
u32 period_sec = 0, period_nsec = 0;
u32 start_sec = 0, start_nsec = 0;
u32 general_config = 0;
int pulse_width = 0;
- int perout_bit = 0;
+ int perout_pin = 0;
+ unsigned int index = perout_request->index;
+ struct lan743x_ptp_perout *perout = &ptp->perout[index];
+ int ret = 0;
- if (!on) {
- lan743x_ptp_perout_off(adapter);
+ if (on) {
+ perout_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_PEROUT,
+ perout_request->index);
+ if (perout_pin < 0)
+ return -EBUSY;
+ } else {
+ lan743x_ptp_perout_off(adapter, index);
return 0;
}
- if (ptp->perout_event_ch >= 0 ||
- ptp->perout_gpio_bit >= 0) {
+ if (perout->event_ch >= 0 ||
+ perout->gpio_pin >= 0) {
/* already on, turn off first */
- lan743x_ptp_perout_off(adapter);
+ lan743x_ptp_perout_off(adapter, index);
}
- ptp->perout_event_ch = lan743x_ptp_reserve_event_ch(adapter);
- if (ptp->perout_event_ch < 0) {
+ perout->event_ch = lan743x_ptp_reserve_event_ch(adapter, index);
+
+ if (perout->event_ch < 0) {
netif_warn(adapter, drv, adapter->netdev,
- "Failed to reserve event channel for PEROUT\n");
+ "Failed to reserve event channel %d for PEROUT\n",
+ index);
+ ret = -EBUSY;
goto failed;
}
- switch (adapter->csr.id_rev & ID_REV_ID_MASK_) {
- case ID_REV_ID_LAN7430_:
- perout_bit = 2;/* GPIO 2 is preferred on EVB LAN7430 */
- break;
- case ID_REV_ID_LAN7431_:
- perout_bit = 4;/* GPIO 4 is preferred on EVB LAN7431 */
- break;
- }
-
- ptp->perout_gpio_bit = lan743x_gpio_rsrv_ptp_out(adapter,
- perout_bit,
- ptp->perout_event_ch);
+ perout->gpio_pin = lan743x_gpio_rsrv_ptp_out(adapter,
+ perout_pin,
+ perout->event_ch);
- if (ptp->perout_gpio_bit < 0) {
+ if (perout->gpio_pin < 0) {
netif_warn(adapter, drv, adapter->netdev,
"Failed to reserve gpio %d for PEROUT\n",
- perout_bit);
+ perout_pin);
+ ret = -EBUSY;
goto failed;
}
- start_sec = perout->start.sec;
- start_sec += perout->start.nsec / 1000000000;
- start_nsec = perout->start.nsec % 1000000000;
+ start_sec = perout_request->start.sec;
+ start_sec += perout_request->start.nsec / 1000000000;
+ start_nsec = perout_request->start.nsec % 1000000000;
+
+ period_sec = perout_request->period.sec;
+ period_sec += perout_request->period.nsec / 1000000000;
+ period_nsec = perout_request->period.nsec % 1000000000;
- period_sec = perout->period.sec;
- period_sec += perout->period.nsec / 1000000000;
- period_nsec = perout->period.nsec % 1000000000;
+ if (perout_request->flags & PTP_PEROUT_DUTY_CYCLE) {
+ struct timespec64 ts_on, ts_period;
+ s64 wf_high, period64, half;
+ s32 reminder;
- if (period_sec == 0) {
- if (period_nsec >= 400000000) {
+ ts_on.tv_sec = perout_request->on.sec;
+ ts_on.tv_nsec = perout_request->on.nsec;
+ wf_high = timespec64_to_ns(&ts_on);
+ ts_period.tv_sec = perout_request->period.sec;
+ ts_period.tv_nsec = perout_request->period.nsec;
+ period64 = timespec64_to_ns(&ts_period);
+
+ if (period64 < 200) {
+ netif_warn(adapter, drv, adapter->netdev,
+ "perout period too small, minimum is 200nS\n");
+ ret = -EOPNOTSUPP;
+ goto failed;
+ }
+ if (wf_high >= period64) {
+ netif_warn(adapter, drv, adapter->netdev,
+ "pulse width must be smaller than period\n");
+ ret = -EINVAL;
+ goto failed;
+ }
+
+ /* Check if we can do 50% toggle on an even value of period.
+ * If the period number is odd, then check if the requested
+ * pulse width is the same as one of pre-defined width values.
+ * Otherwise, return failure.
+ */
+ half = div_s64_rem(period64, 2, &reminder);
+ if (!reminder) {
+ if (half == wf_high) {
+ /* It's 50% match. Use the toggle option */
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_TOGGLE_;
+ /* In this case, divide period value by 2 */
+ ts_period = ns_to_timespec64(div_s64(period64, 2));
+ period_sec = ts_period.tv_sec;
+ period_nsec = ts_period.tv_nsec;
+
+ goto program;
+ }
+ }
+ /* if we can't do toggle, then the width option needs to be the exact match */
+ if (wf_high == 200000000) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
- } else if (period_nsec >= 20000000) {
+ } else if (wf_high == 10000000) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_;
- } else if (period_nsec >= 2000000) {
+ } else if (wf_high == 1000000) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_;
- } else if (period_nsec >= 200000) {
+ } else if (wf_high == 100000) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_;
- } else if (period_nsec >= 20000) {
+ } else if (wf_high == 10000) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_;
- } else if (period_nsec >= 200) {
+ } else if (wf_high == 100) {
pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_;
} else {
netif_warn(adapter, drv, adapter->netdev,
- "perout period too small, minimum is 200nS\n");
+ "duty cycle specified is not supported\n");
+ ret = -EOPNOTSUPP;
goto failed;
}
} else {
- pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
+ if (period_sec == 0) {
+ if (period_nsec >= 400000000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
+ } else if (period_nsec >= 20000000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_;
+ } else if (period_nsec >= 2000000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_;
+ } else if (period_nsec >= 200000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_;
+ } else if (period_nsec >= 20000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_;
+ } else if (period_nsec >= 200) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_;
+ } else {
+ netif_warn(adapter, drv, adapter->netdev,
+ "perout period too small, minimum is 200nS\n");
+ ret = -EOPNOTSUPP;
+ goto failed;
+ }
+ } else {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
+ }
}
+program:
/* turn off by setting target far in future */
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_SEC_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_SEC_X(perout->event_ch),
0xFFFF0000);
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_NS_X(ptp->perout_event_ch), 0);
+ PTP_CLOCK_TARGET_NS_X(perout->event_ch), 0);
/* Configure to pulse every period */
general_config = lan743x_csr_read(adapter, PTP_GENERAL_CONFIG);
general_config &= ~(PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_
- (ptp->perout_event_ch));
+ (perout->event_ch));
general_config |= PTP_GENERAL_CONFIG_CLOCK_EVENT_X_SET_
- (ptp->perout_event_ch, pulse_width);
+ (perout->event_ch, pulse_width);
general_config &= ~PTP_GENERAL_CONFIG_RELOAD_ADD_X_
- (ptp->perout_event_ch);
+ (perout->event_ch);
lan743x_csr_write(adapter, PTP_GENERAL_CONFIG, general_config);
/* set the reload to one toggle cycle */
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_RELOAD_SEC_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_RELOAD_SEC_X(perout->event_ch),
+ period_sec);
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_RELOAD_NS_X(perout->event_ch),
+ period_nsec);
+
+ /* set the start time */
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_SEC_X(perout->event_ch),
+ start_sec);
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_NS_X(perout->event_ch),
+ start_nsec);
+
+ return 0;
+
+failed:
+ lan743x_ptp_perout_off(adapter, index);
+ return ret;
+}
+
+static void lan743x_ptp_io_perout_off(struct lan743x_adapter *adapter,
+ u32 index)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ int perout_pin;
+ int event_ch;
+ u32 gen_cfg;
+ int val;
+
+ event_ch = ptp->ptp_io_perout[index];
+ if (event_ch >= 0) {
+ /* set target to far in the future, effectively disabling it */
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_SEC_X(event_ch),
+ 0xFFFF0000);
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_NS_X(event_ch),
+ 0);
+
+ gen_cfg = lan743x_csr_read(adapter, HS_PTP_GENERAL_CONFIG);
+ gen_cfg &= ~(HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_
+ (event_ch));
+ gen_cfg &= ~(HS_PTP_GENERAL_CONFIG_EVENT_POL_X_(event_ch));
+ gen_cfg |= HS_PTP_GENERAL_CONFIG_RELOAD_ADD_X_(event_ch);
+ lan743x_csr_write(adapter, HS_PTP_GENERAL_CONFIG, gen_cfg);
+ if (event_ch)
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_TIMER_INT_B_);
+ else
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_TIMER_INT_A_);
+ lan743x_ptp_release_event_ch(adapter, event_ch);
+ ptp->ptp_io_perout[index] = -1;
+ }
+
+ perout_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_PEROUT, index);
+
+ /* Deselect Event output */
+ val = lan743x_csr_read(adapter, PTP_IO_EVENT_OUTPUT_CFG);
+
+ /* Disables the output of Local Time Target compare events */
+ val &= ~PTP_IO_EVENT_OUTPUT_CFG_EN_(perout_pin);
+ lan743x_csr_write(adapter, PTP_IO_EVENT_OUTPUT_CFG, val);
+
+ /* Configured as an opendrain driver*/
+ val = lan743x_csr_read(adapter, PTP_IO_PIN_CFG);
+ val &= ~PTP_IO_PIN_CFG_OBUF_TYPE_(perout_pin);
+ lan743x_csr_write(adapter, PTP_IO_PIN_CFG, val);
+ /* Dummy read to make sure write operation success */
+ val = lan743x_csr_read(adapter, PTP_IO_PIN_CFG);
+}
+
+static int lan743x_ptp_io_perout(struct lan743x_adapter *adapter, int on,
+ struct ptp_perout_request *perout_request)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ u32 period_sec, period_nsec;
+ u32 start_sec, start_nsec;
+ u32 pulse_sec, pulse_nsec;
+ int pulse_width;
+ int perout_pin;
+ int event_ch;
+ u32 gen_cfg;
+ u32 index;
+ int val;
+
+ index = perout_request->index;
+ event_ch = ptp->ptp_io_perout[index];
+
+ if (on) {
+ perout_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_PEROUT, index);
+ if (perout_pin < 0)
+ return -EBUSY;
+ } else {
+ lan743x_ptp_io_perout_off(adapter, index);
+ return 0;
+ }
+
+ if (event_ch >= LAN743X_PTP_N_EVENT_CHAN) {
+ /* already on, turn off first */
+ lan743x_ptp_io_perout_off(adapter, index);
+ }
+
+ event_ch = lan743x_ptp_reserve_event_ch(adapter, index);
+ if (event_ch < 0) {
+ netif_warn(adapter, drv, adapter->netdev,
+ "Failed to reserve event channel %d for PEROUT\n",
+ index);
+ goto failed;
+ }
+ ptp->ptp_io_perout[index] = event_ch;
+
+ if (perout_request->flags & PTP_PEROUT_DUTY_CYCLE) {
+ pulse_sec = perout_request->on.sec;
+ pulse_sec += perout_request->on.nsec / 1000000000;
+ pulse_nsec = perout_request->on.nsec % 1000000000;
+ } else {
+ pulse_sec = perout_request->period.sec;
+ pulse_sec += perout_request->period.nsec / 1000000000;
+ pulse_nsec = perout_request->period.nsec % 1000000000;
+ }
+
+ if (pulse_sec == 0) {
+ if (pulse_nsec >= 400000000) {
+ pulse_width = PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
+ } else if (pulse_nsec >= 200000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_100MS_;
+ } else if (pulse_nsec >= 100000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_50MS_;
+ } else if (pulse_nsec >= 20000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_;
+ } else if (pulse_nsec >= 10000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_5MS_;
+ } else if (pulse_nsec >= 2000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_;
+ } else if (pulse_nsec >= 1000000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_500US_;
+ } else if (pulse_nsec >= 200000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_;
+ } else if (pulse_nsec >= 100000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_50US_;
+ } else if (pulse_nsec >= 20000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_;
+ } else if (pulse_nsec >= 10000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_5US_;
+ } else if (pulse_nsec >= 2000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_1US_;
+ } else if (pulse_nsec >= 1000) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_500NS_;
+ } else if (pulse_nsec >= 200) {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_;
+ } else {
+ netif_warn(adapter, drv, adapter->netdev,
+ "perout period too small, min is 200nS\n");
+ goto failed;
+ }
+ } else {
+ pulse_width = HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_;
+ }
+
+ /* turn off by setting target far in future */
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_SEC_X(event_ch),
+ 0xFFFF0000);
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_NS_X(event_ch), 0);
+
+ /* Configure to pulse every period */
+ gen_cfg = lan743x_csr_read(adapter, HS_PTP_GENERAL_CONFIG);
+ gen_cfg &= ~(HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_(event_ch));
+ gen_cfg |= HS_PTP_GENERAL_CONFIG_CLOCK_EVENT_X_SET_
+ (event_ch, pulse_width);
+ gen_cfg |= HS_PTP_GENERAL_CONFIG_EVENT_POL_X_(event_ch);
+ gen_cfg &= ~(HS_PTP_GENERAL_CONFIG_RELOAD_ADD_X_(event_ch));
+ lan743x_csr_write(adapter, HS_PTP_GENERAL_CONFIG, gen_cfg);
+
+ /* set the reload to one toggle cycle */
+ period_sec = perout_request->period.sec;
+ period_sec += perout_request->period.nsec / 1000000000;
+ period_nsec = perout_request->period.nsec % 1000000000;
+ lan743x_csr_write(adapter,
+ PTP_CLOCK_TARGET_RELOAD_SEC_X(event_ch),
period_sec);
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_RELOAD_NS_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_RELOAD_NS_X(event_ch),
period_nsec);
+ start_sec = perout_request->start.sec;
+ start_sec += perout_request->start.nsec / 1000000000;
+ start_nsec = perout_request->start.nsec % 1000000000;
+
/* set the start time */
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_SEC_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_SEC_X(event_ch),
start_sec);
lan743x_csr_write(adapter,
- PTP_CLOCK_TARGET_NS_X(ptp->perout_event_ch),
+ PTP_CLOCK_TARGET_NS_X(event_ch),
start_nsec);
+ /* Enable LTC Target Read */
+ val = lan743x_csr_read(adapter, PTP_CMD_CTL);
+ val |= PTP_CMD_CTL_PTP_LTC_TARGET_READ_;
+ lan743x_csr_write(adapter, PTP_CMD_CTL, val);
+
+ /* Configure as an push/pull driver */
+ val = lan743x_csr_read(adapter, PTP_IO_PIN_CFG);
+ val |= PTP_IO_PIN_CFG_OBUF_TYPE_(perout_pin);
+ lan743x_csr_write(adapter, PTP_IO_PIN_CFG, val);
+
+ /* Select Event output */
+ val = lan743x_csr_read(adapter, PTP_IO_EVENT_OUTPUT_CFG);
+ if (event_ch)
+ /* Channel B as the output */
+ val |= PTP_IO_EVENT_OUTPUT_CFG_SEL_(perout_pin);
+ else
+ /* Channel A as the output */
+ val &= ~PTP_IO_EVENT_OUTPUT_CFG_SEL_(perout_pin);
+
+ /* Enables the output of Local Time Target compare events */
+ val |= PTP_IO_EVENT_OUTPUT_CFG_EN_(perout_pin);
+ lan743x_csr_write(adapter, PTP_IO_EVENT_OUTPUT_CFG, val);
+
return 0;
failed:
- lan743x_ptp_perout_off(adapter);
+ lan743x_ptp_io_perout_off(adapter, index);
return -ENODEV;
}
+static void lan743x_ptp_io_extts_off(struct lan743x_adapter *adapter,
+ u32 index)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ struct lan743x_extts *extts;
+ int val;
+
+ extts = &ptp->extts[index];
+ /* PTP Interrupt Enable Clear Register */
+ if (extts->flags & PTP_FALLING_EDGE)
+ val = PTP_INT_EN_FE_EN_CLR_(index);
+ else
+ val = PTP_INT_EN_RE_EN_CLR_(index);
+ lan743x_csr_write(adapter, PTP_INT_EN_CLR, val);
+
+ /* Disables PTP-IO edge lock */
+ val = lan743x_csr_read(adapter, PTP_IO_CAP_CONFIG);
+ if (extts->flags & PTP_FALLING_EDGE) {
+ val &= ~PTP_IO_CAP_CONFIG_LOCK_FE_(index);
+ val &= ~PTP_IO_CAP_CONFIG_FE_CAP_EN_(index);
+ } else {
+ val &= ~PTP_IO_CAP_CONFIG_LOCK_RE_(index);
+ val &= ~PTP_IO_CAP_CONFIG_RE_CAP_EN_(index);
+ }
+ lan743x_csr_write(adapter, PTP_IO_CAP_CONFIG, val);
+
+ /* PTP-IO De-select register */
+ val = lan743x_csr_read(adapter, PTP_IO_SEL);
+ val &= ~PTP_IO_SEL_MASK_;
+ lan743x_csr_write(adapter, PTP_IO_SEL, val);
+
+ /* Clear timestamp */
+ memset(&extts->ts, 0, sizeof(struct timespec64));
+ extts->flags = 0;
+}
+
+static int lan743x_ptp_io_event_cap_en(struct lan743x_adapter *adapter,
+ u32 flags, u32 channel)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ int val;
+
+ if ((flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES)
+ return -EOPNOTSUPP;
+
+ mutex_lock(&ptp->command_lock);
+ /* PTP-IO Event Capture Enable */
+ val = lan743x_csr_read(adapter, PTP_IO_CAP_CONFIG);
+ if (flags & PTP_FALLING_EDGE) {
+ val &= ~PTP_IO_CAP_CONFIG_LOCK_RE_(channel);
+ val &= ~PTP_IO_CAP_CONFIG_RE_CAP_EN_(channel);
+ val |= PTP_IO_CAP_CONFIG_LOCK_FE_(channel);
+ val |= PTP_IO_CAP_CONFIG_FE_CAP_EN_(channel);
+ } else {
+ /* Rising eventing as Default */
+ val &= ~PTP_IO_CAP_CONFIG_LOCK_FE_(channel);
+ val &= ~PTP_IO_CAP_CONFIG_FE_CAP_EN_(channel);
+ val |= PTP_IO_CAP_CONFIG_LOCK_RE_(channel);
+ val |= PTP_IO_CAP_CONFIG_RE_CAP_EN_(channel);
+ }
+ lan743x_csr_write(adapter, PTP_IO_CAP_CONFIG, val);
+
+ /* PTP-IO Select */
+ val = lan743x_csr_read(adapter, PTP_IO_SEL);
+ val &= ~PTP_IO_SEL_MASK_;
+ val |= channel << PTP_IO_SEL_SHIFT_;
+ lan743x_csr_write(adapter, PTP_IO_SEL, val);
+
+ /* PTP Interrupt Enable Register */
+ if (flags & PTP_FALLING_EDGE)
+ val = PTP_INT_EN_FE_EN_SET_(channel);
+ else
+ val = PTP_INT_EN_RE_EN_SET_(channel);
+ lan743x_csr_write(adapter, PTP_INT_EN_SET, val);
+
+ mutex_unlock(&ptp->command_lock);
+
+ return 0;
+}
+
+static int lan743x_ptp_io_extts(struct lan743x_adapter *adapter, int on,
+ struct ptp_extts_request *extts_request)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ u32 flags = extts_request->flags;
+ u32 index = extts_request->index;
+ struct lan743x_extts *extts;
+ int extts_pin;
+ int ret = 0;
+
+ extts = &ptp->extts[index];
+
+ if (on) {
+ extts_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_EXTTS, index);
+ if (extts_pin < 0)
+ return -EBUSY;
+
+ ret = lan743x_ptp_io_event_cap_en(adapter, flags, index);
+ if (!ret)
+ extts->flags = flags;
+ } else {
+ lan743x_ptp_io_extts_off(adapter, index);
+ }
+
+ return ret;
+}
+
static int lan743x_ptpci_enable(struct ptp_clock_info *ptpci,
struct ptp_clock_request *request, int on)
{
@@ -548,11 +964,19 @@ static int lan743x_ptpci_enable(struct ptp_clock_info *ptpci,
if (request) {
switch (request->type) {
case PTP_CLK_REQ_EXTTS:
+ if (request->extts.index < ptpci->n_ext_ts)
+ return lan743x_ptp_io_extts(adapter, on,
+ &request->extts);
return -EINVAL;
case PTP_CLK_REQ_PEROUT:
- if (request->perout.index == 0)
- return lan743x_ptp_perout(adapter, on,
+ if (request->perout.index < ptpci->n_per_out) {
+ if (adapter->is_pci11x1x)
+ return lan743x_ptp_io_perout(adapter, on,
+ &request->perout);
+ else
+ return lan743x_ptp_perout(adapter, on,
&request->perout);
+ }
return -EINVAL;
case PTP_CLK_REQ_PPS:
return -EINVAL;
@@ -568,6 +992,63 @@ static int lan743x_ptpci_enable(struct ptp_clock_info *ptpci,
return 0;
}
+static int lan743x_ptpci_verify_pin_config(struct ptp_clock_info *ptp,
+ unsigned int pin,
+ enum ptp_pin_function func,
+ unsigned int chan)
+{
+ struct lan743x_ptp *lan_ptp =
+ container_of(ptp, struct lan743x_ptp, ptp_clock_info);
+ struct lan743x_adapter *adapter =
+ container_of(lan_ptp, struct lan743x_adapter, ptp);
+ int result = 0;
+
+ /* Confirm the requested function is supported. Parameter
+ * validation is done by the caller.
+ */
+ switch (func) {
+ case PTP_PF_NONE:
+ case PTP_PF_PEROUT:
+ break;
+ case PTP_PF_EXTTS:
+ if (!adapter->is_pci11x1x)
+ result = -1;
+ break;
+ case PTP_PF_PHYSYNC:
+ default:
+ result = -1;
+ break;
+ }
+ return result;
+}
+
+static void lan743x_ptp_io_event_clock_get(struct lan743x_adapter *adapter,
+ bool fe, u8 channel,
+ struct timespec64 *ts)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+ struct lan743x_extts *extts;
+ u32 sec, nsec;
+
+ mutex_lock(&ptp->command_lock);
+ if (fe) {
+ sec = lan743x_csr_read(adapter, PTP_IO_FE_LTC_SEC_CAP_X);
+ nsec = lan743x_csr_read(adapter, PTP_IO_FE_LTC_NS_CAP_X);
+ } else {
+ sec = lan743x_csr_read(adapter, PTP_IO_RE_LTC_SEC_CAP_X);
+ nsec = lan743x_csr_read(adapter, PTP_IO_RE_LTC_NS_CAP_X);
+ }
+
+ mutex_unlock(&ptp->command_lock);
+
+ /* Update Local timestamp */
+ extts = &ptp->extts[channel];
+ extts->ts.tv_sec = sec;
+ extts->ts.tv_nsec = nsec;
+ ts->tv_sec = sec;
+ ts->tv_nsec = nsec;
+}
+
static long lan743x_ptpci_do_aux_work(struct ptp_clock_info *ptpci)
{
struct lan743x_ptp *ptp =
@@ -576,41 +1057,121 @@ static long lan743x_ptpci_do_aux_work(struct ptp_clock_info *ptpci)
container_of(ptp, struct lan743x_adapter, ptp);
u32 cap_info, cause, header, nsec, seconds;
bool new_timestamp_available = false;
+ struct ptp_clock_event ptp_event;
+ struct timespec64 ts;
+ int ptp_int_sts;
int count = 0;
+ int channel;
+ s64 ns;
- while ((count < 100) &&
- (lan743x_csr_read(adapter, PTP_INT_STS) & PTP_INT_BIT_TX_TS_)) {
+ ptp_int_sts = lan743x_csr_read(adapter, PTP_INT_STS);
+ while ((count < 100) && ptp_int_sts) {
count++;
- cap_info = lan743x_csr_read(adapter, PTP_CAP_INFO);
-
- if (PTP_CAP_INFO_TX_TS_CNT_GET_(cap_info) > 0) {
- seconds = lan743x_csr_read(adapter,
- PTP_TX_EGRESS_SEC);
- nsec = lan743x_csr_read(adapter, PTP_TX_EGRESS_NS);
- cause = (nsec &
- PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_);
- header = lan743x_csr_read(adapter,
- PTP_TX_MSG_HEADER);
-
- if (cause == PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_) {
- nsec &= PTP_TX_EGRESS_NS_TS_NS_MASK_;
- lan743x_ptp_tx_ts_enqueue_ts(adapter,
- seconds, nsec,
- header);
- new_timestamp_available = true;
- } else if (cause ==
- PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_) {
- netif_err(adapter, drv, adapter->netdev,
- "Auto capture cause not supported\n");
+
+ if (ptp_int_sts & PTP_INT_BIT_TX_TS_) {
+ cap_info = lan743x_csr_read(adapter, PTP_CAP_INFO);
+
+ if (PTP_CAP_INFO_TX_TS_CNT_GET_(cap_info) > 0) {
+ seconds = lan743x_csr_read(adapter,
+ PTP_TX_EGRESS_SEC);
+ nsec = lan743x_csr_read(adapter,
+ PTP_TX_EGRESS_NS);
+ cause = (nsec &
+ PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_);
+ header = lan743x_csr_read(adapter,
+ PTP_TX_MSG_HEADER);
+
+ if (cause ==
+ PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_) {
+ nsec &= PTP_TX_EGRESS_NS_TS_NS_MASK_;
+ lan743x_ptp_tx_ts_enqueue_ts(adapter,
+ seconds,
+ nsec,
+ header);
+ new_timestamp_available = true;
+ } else if (cause ==
+ PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_) {
+ netif_err(adapter, drv, adapter->netdev,
+ "Auto capture cause not supported\n");
+ } else {
+ netif_warn(adapter, drv, adapter->netdev,
+ "unknown tx timestamp capture cause\n");
+ }
} else {
netif_warn(adapter, drv, adapter->netdev,
- "unknown tx timestamp capture cause\n");
+ "TX TS INT but no TX TS CNT\n");
}
- } else {
- netif_warn(adapter, drv, adapter->netdev,
- "TX TS INT but no TX TS CNT\n");
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_BIT_TX_TS_);
}
- lan743x_csr_write(adapter, PTP_INT_STS, PTP_INT_BIT_TX_TS_);
+
+ if (ptp_int_sts & PTP_INT_IO_FE_MASK_) {
+ do {
+ channel = lan743x_get_channel((ptp_int_sts &
+ PTP_INT_IO_FE_MASK_) >>
+ PTP_INT_IO_FE_SHIFT_);
+ if (channel >= 0 &&
+ channel < PCI11X1X_PTP_IO_MAX_CHANNELS) {
+ lan743x_ptp_io_event_clock_get(adapter,
+ true,
+ channel,
+ &ts);
+ /* PTP Falling Event post */
+ ns = timespec64_to_ns(&ts);
+ ptp_event.timestamp = ns;
+ ptp_event.index = channel;
+ ptp_event.type = PTP_CLOCK_EXTTS;
+ ptp_clock_event(ptp->ptp_clock,
+ &ptp_event);
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_IO_FE_SET_
+ (channel));
+ ptp_int_sts &= ~(1 <<
+ (PTP_INT_IO_FE_SHIFT_ +
+ channel));
+ } else {
+ /* Clear falling event interrupts */
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_IO_FE_MASK_);
+ ptp_int_sts &= ~PTP_INT_IO_FE_MASK_;
+ }
+ } while (ptp_int_sts & PTP_INT_IO_FE_MASK_);
+ }
+
+ if (ptp_int_sts & PTP_INT_IO_RE_MASK_) {
+ do {
+ channel = lan743x_get_channel((ptp_int_sts &
+ PTP_INT_IO_RE_MASK_) >>
+ PTP_INT_IO_RE_SHIFT_);
+ if (channel >= 0 &&
+ channel < PCI11X1X_PTP_IO_MAX_CHANNELS) {
+ lan743x_ptp_io_event_clock_get(adapter,
+ false,
+ channel,
+ &ts);
+ /* PTP Rising Event post */
+ ns = timespec64_to_ns(&ts);
+ ptp_event.timestamp = ns;
+ ptp_event.index = channel;
+ ptp_event.type = PTP_CLOCK_EXTTS;
+ ptp_clock_event(ptp->ptp_clock,
+ &ptp_event);
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_IO_RE_SET_
+ (channel));
+ ptp_int_sts &= ~(1 <<
+ (PTP_INT_IO_RE_SHIFT_ +
+ channel));
+ } else {
+ /* Clear Rising event interrupt */
+ lan743x_csr_write(adapter, PTP_INT_STS,
+ PTP_INT_IO_RE_MASK_);
+ ptp_int_sts &= ~PTP_INT_IO_RE_MASK_;
+ }
+ } while (ptp_int_sts & PTP_INT_IO_RE_MASK_);
+ }
+
+ ptp_int_sts = lan743x_csr_read(adapter, PTP_INT_STS);
}
if (new_timestamp_available)
@@ -645,6 +1206,28 @@ static void lan743x_ptp_clock_get(struct lan743x_adapter *adapter,
mutex_unlock(&ptp->command_lock);
}
+static void lan743x_ptp_io_clock_get(struct lan743x_adapter *adapter,
+ u32 *sec, u32 *nsec, u32 *sub_nsec)
+{
+ struct lan743x_ptp *ptp = &adapter->ptp;
+
+ mutex_lock(&ptp->command_lock);
+ lan743x_csr_write(adapter, PTP_CMD_CTL, PTP_CMD_CTL_PTP_CLOCK_READ_);
+ lan743x_ptp_wait_till_cmd_done(adapter, PTP_CMD_CTL_PTP_CLOCK_READ_);
+
+ if (sec)
+ (*sec) = lan743x_csr_read(adapter, PTP_LTC_RD_SEC_LO);
+
+ if (nsec)
+ (*nsec) = lan743x_csr_read(adapter, PTP_LTC_RD_NS);
+
+ if (sub_nsec)
+ (*sub_nsec) =
+ lan743x_csr_read(adapter, PTP_LTC_RD_SUBNS);
+
+ mutex_unlock(&ptp->command_lock);
+}
+
static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter,
s64 time_step_ns)
{
@@ -658,8 +1241,12 @@ static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter,
if (time_step_ns > 15000000000LL) {
/* convert to clock set */
- lan743x_ptp_clock_get(adapter, &unsigned_seconds,
- &nano_seconds, NULL);
+ if (adapter->is_pci11x1x)
+ lan743x_ptp_io_clock_get(adapter, &unsigned_seconds,
+ &nano_seconds, NULL);
+ else
+ lan743x_ptp_clock_get(adapter, &unsigned_seconds,
+ &nano_seconds, NULL);
unsigned_seconds += div_u64_rem(time_step_ns, 1000000000LL,
&remainder);
nano_seconds += remainder;
@@ -674,8 +1261,13 @@ static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter,
/* convert to clock set */
time_step_ns = -time_step_ns;
- lan743x_ptp_clock_get(adapter, &unsigned_seconds,
- &nano_seconds, NULL);
+ if (adapter->is_pci11x1x) {
+ lan743x_ptp_io_clock_get(adapter, &unsigned_seconds,
+ &nano_seconds, NULL);
+ } else {
+ lan743x_ptp_clock_get(adapter, &unsigned_seconds,
+ &nano_seconds, NULL);
+ }
unsigned_seconds -= div_u64_rem(time_step_ns, 1000000000LL,
&remainder);
nano_seconds_step = remainder;
@@ -861,12 +1453,19 @@ void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
int lan743x_ptp_init(struct lan743x_adapter *adapter)
{
struct lan743x_ptp *ptp = &adapter->ptp;
+ int i;
mutex_init(&ptp->command_lock);
spin_lock_init(&ptp->tx_ts_lock);
ptp->used_event_ch = 0;
- ptp->perout_event_ch = -1;
- ptp->perout_gpio_bit = -1;
+
+ for (i = 0; i < LAN743X_PTP_N_EVENT_CHAN; i++) {
+ ptp->perout[i].event_ch = -1;
+ ptp->perout[i].gpio_pin = -1;
+ }
+
+ lan743x_led_mux_save(adapter);
+
return 0;
}
@@ -875,12 +1474,18 @@ int lan743x_ptp_open(struct lan743x_adapter *adapter)
struct lan743x_ptp *ptp = &adapter->ptp;
int ret = -ENODEV;
u32 temp;
+ int i;
+ int n_pins;
lan743x_ptp_reset(adapter);
lan743x_ptp_sync_to_system_clock(adapter);
temp = lan743x_csr_read(adapter, PTP_TX_MOD2);
temp |= PTP_TX_MOD2_TX_PTP_CLR_UDPV4_CHKSUM_;
lan743x_csr_write(adapter, PTP_TX_MOD2, temp);
+
+ /* Default Timestamping */
+ lan743x_rx_set_tstamp_mode(adapter, HWTSTAMP_FILTER_NONE);
+
lan743x_ptp_enable(adapter);
lan743x_csr_write(adapter, INT_EN_SET, INT_BIT_1588_);
lan743x_csr_write(adapter, PTP_INT_EN_SET,
@@ -890,30 +1495,57 @@ int lan743x_ptp_open(struct lan743x_adapter *adapter)
if (!IS_ENABLED(CONFIG_PTP_1588_CLOCK))
return 0;
- snprintf(ptp->pin_config[0].name, 32, "lan743x_ptp_pin_0");
- ptp->pin_config[0].index = 0;
- ptp->pin_config[0].func = PTP_PF_PEROUT;
- ptp->pin_config[0].chan = 0;
+ switch (adapter->csr.id_rev & ID_REV_ID_MASK_) {
+ case ID_REV_ID_LAN7430_:
+ n_pins = LAN7430_N_GPIO;
+ break;
+ case ID_REV_ID_LAN7431_:
+ case ID_REV_ID_A011_:
+ case ID_REV_ID_A041_:
+ n_pins = LAN7431_N_GPIO;
+ break;
+ default:
+ netif_warn(adapter, drv, adapter->netdev,
+ "Unknown LAN743x (%08x). Assuming no GPIO\n",
+ adapter->csr.id_rev);
+ n_pins = 0;
+ break;
+ }
+
+ if (n_pins > LAN743X_PTP_N_GPIO)
+ n_pins = LAN743X_PTP_N_GPIO;
+
+ for (i = 0; i < n_pins; i++) {
+ struct ptp_pin_desc *ptp_pin = &ptp->pin_config[i];
+
+ snprintf(ptp_pin->name,
+ sizeof(ptp_pin->name), "lan743x_ptp_pin_%02d", i);
+ ptp_pin->index = i;
+ ptp_pin->func = PTP_PF_NONE;
+ }
ptp->ptp_clock_info.owner = THIS_MODULE;
snprintf(ptp->ptp_clock_info.name, 16, "%pm",
adapter->netdev->dev_addr);
ptp->ptp_clock_info.max_adj = LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB;
ptp->ptp_clock_info.n_alarm = 0;
- ptp->ptp_clock_info.n_ext_ts = 0;
- ptp->ptp_clock_info.n_per_out = 1;
- ptp->ptp_clock_info.n_pins = 0;
- ptp->ptp_clock_info.pps = 0;
- ptp->ptp_clock_info.pin_config = NULL;
+ ptp->ptp_clock_info.n_ext_ts = LAN743X_PTP_N_EXTTS;
+ ptp->ptp_clock_info.n_per_out = LAN743X_PTP_N_EVENT_CHAN;
+ ptp->ptp_clock_info.n_pins = n_pins;
+ ptp->ptp_clock_info.pps = LAN743X_PTP_N_PPS;
+ ptp->ptp_clock_info.supported_extts_flags = PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS;
+ ptp->ptp_clock_info.supported_perout_flags = PTP_PEROUT_DUTY_CYCLE;
+ ptp->ptp_clock_info.pin_config = ptp->pin_config;
ptp->ptp_clock_info.adjfine = lan743x_ptpci_adjfine;
- ptp->ptp_clock_info.adjfreq = lan743x_ptpci_adjfreq;
ptp->ptp_clock_info.adjtime = lan743x_ptpci_adjtime;
ptp->ptp_clock_info.gettime64 = lan743x_ptpci_gettime64;
ptp->ptp_clock_info.getcrosststamp = NULL;
ptp->ptp_clock_info.settime64 = lan743x_ptpci_settime64;
ptp->ptp_clock_info.enable = lan743x_ptpci_enable;
ptp->ptp_clock_info.do_aux_work = lan743x_ptpci_do_aux_work;
- ptp->ptp_clock_info.verify = NULL;
+ ptp->ptp_clock_info.verify = lan743x_ptpci_verify_pin_config;
ptp->ptp_clock = ptp_clock_register(&ptp->ptp_clock_info,
&adapter->pdev->dev);
@@ -939,7 +1571,7 @@ void lan743x_ptp_close(struct lan743x_adapter *adapter)
int index;
if (IS_ENABLED(CONFIG_PTP_1588_CLOCK) &&
- ptp->flags & PTP_FLAG_PTP_CLOCK_REGISTERED) {
+ (ptp->flags & PTP_FLAG_PTP_CLOCK_REGISTERED)) {
ptp_clock_unregister(ptp->ptp_clock);
ptp->ptp_clock = NULL;
ptp->flags &= ~PTP_FLAG_PTP_CLOCK_REGISTERED;
@@ -963,8 +1595,7 @@ void lan743x_ptp_close(struct lan743x_adapter *adapter)
index++) {
struct sk_buff *skb = ptp->tx_ts_skb_queue[index];
- if (skb)
- dev_kfree_skb(skb);
+ dev_kfree_skb(skb);
ptp->tx_ts_skb_queue[index] = NULL;
ptp->tx_ts_seconds_queue[index] = 0;
ptp->tx_ts_nseconds_queue[index] = 0;
@@ -974,6 +1605,8 @@ void lan743x_ptp_close(struct lan743x_adapter *adapter)
ptp->pending_tx_timestamps = 0;
spin_unlock_bh(&ptp->tx_ts_lock);
+ lan743x_led_mux_restore(adapter);
+
lan743x_ptp_disable(adapter);
}
@@ -1017,6 +1650,9 @@ static void lan743x_ptp_disable(struct lan743x_adapter *adapter)
{
struct lan743x_ptp *ptp = &adapter->ptp;
+ /* Disable Timestamping */
+ lan743x_rx_set_tstamp_mode(adapter, HWTSTAMP_FILTER_NONE);
+
mutex_lock(&ptp->command_lock);
if (!lan743x_ptp_is_enabled(adapter)) {
netif_warn(adapter, drv, adapter->netdev,
@@ -1069,13 +1705,13 @@ bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter)
struct lan743x_ptp *ptp = &adapter->ptp;
bool result = false;
- spin_lock_bh(&ptp->tx_ts_lock);
+ spin_lock(&ptp->tx_ts_lock);
if (ptp->pending_tx_timestamps < LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS) {
/* request granted */
ptp->pending_tx_timestamps++;
result = true;
}
- spin_unlock_bh(&ptp->tx_ts_lock);
+ spin_unlock(&ptp->tx_ts_lock);
return result;
}
@@ -1100,60 +1736,61 @@ void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
lan743x_ptp_tx_ts_complete(adapter);
}
-int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+int lan743x_ptp_hwtstamp_get(struct net_device *netdev,
+ struct kernel_hwtstamp_config *config)
{
struct lan743x_adapter *adapter = netdev_priv(netdev);
- struct hwtstamp_config config;
- int ret = 0;
- int index;
+ struct lan743x_tx *tx = &adapter->tx[0];
- if (!ifr) {
- netif_err(adapter, drv, adapter->netdev,
- "SIOCSHWTSTAMP, ifr == NULL\n");
- return -EINVAL;
- }
+ if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC)
+ config->tx_type = HWTSTAMP_TX_ONESTEP_SYNC;
+ else if (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED)
+ config->tx_type = HWTSTAMP_TX_ON;
+ else
+ config->tx_type = HWTSTAMP_TX_OFF;
- if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
- return -EFAULT;
+ config->rx_filter = adapter->rx_tstamp_filter;
- if (config.flags) {
- netif_warn(adapter, drv, adapter->netdev,
- "ignoring hwtstamp_config.flags == 0x%08X, expected 0\n",
- config.flags);
- }
+ return 0;
+}
+
+int lan743x_ptp_hwtstamp_set(struct net_device *netdev,
+ struct kernel_hwtstamp_config *config,
+ struct netlink_ext_ack *extack)
+{
+ struct lan743x_adapter *adapter = netdev_priv(netdev);
+ int index;
- switch (config.tx_type) {
+ switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
- for (index = 0; index < LAN743X_MAX_TX_CHANNELS;
- index++)
+ for (index = 0; index < adapter->used_tx_channels;
+ index++)
lan743x_tx_set_timestamping_mode(&adapter->tx[index],
false, false);
lan743x_ptp_set_sync_ts_insert(adapter, false);
break;
case HWTSTAMP_TX_ON:
- for (index = 0; index < LAN743X_MAX_TX_CHANNELS;
+ for (index = 0; index < adapter->used_tx_channels;
index++)
lan743x_tx_set_timestamping_mode(&adapter->tx[index],
true, false);
lan743x_ptp_set_sync_ts_insert(adapter, false);
break;
case HWTSTAMP_TX_ONESTEP_SYNC:
- for (index = 0; index < LAN743X_MAX_TX_CHANNELS;
+ for (index = 0; index < adapter->used_tx_channels;
index++)
lan743x_tx_set_timestamping_mode(&adapter->tx[index],
true, true);
lan743x_ptp_set_sync_ts_insert(adapter, true);
break;
+ case HWTSTAMP_TX_ONESTEP_P2P:
+ return -ERANGE;
default:
netif_warn(adapter, drv, adapter->netdev,
- " tx_type = %d, UNKNOWN\n", config.tx_type);
- ret = -EINVAL;
- break;
+ " tx_type = %d, UNKNOWN\n", config->tx_type);
+ return -EINVAL;
}
- if (!ret)
- return copy_to_user(ifr->ifr_data, &config,
- sizeof(config)) ? -EFAULT : 0;
- return ret;
+ return lan743x_rx_set_tstamp_mode(adapter, config->rx_filter);
}