diff options
Diffstat (limited to 'drivers/net/phy/micrel.c')
| -rw-r--r-- | drivers/net/phy/micrel.c | 548 |
1 files changed, 475 insertions, 73 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 0fd1678bc5a..bc7c7d2f75f 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -5,27 +5,33 @@ * * Author: David J. Choi * - * Copyright (c) 2010 Micrel, Inc. + * Copyright (c) 2010-2013 Micrel, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * - * Support : ksz9021 1000/100/10 phy from Micrel - * ks8001, ks8737, ks8721, ks8041, ks8051 100/10 phy + * Support : Micrel Phys: + * Giga phys: ksz9021, ksz9031 + * 100/10 Phys : ksz8001, ksz8721, ksz8737, ksz8041 + * ksz8021, ksz8031, ksz8051, + * ksz8081, ksz8091, + * ksz8061, + * Switch : ksz8873, ksz886x */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/phy.h> +#include <linux/micrel_phy.h> +#include <linux/of.h> -#define PHY_ID_KSZ9021 0x00221611 -#define PHY_ID_KS8737 0x00221720 -#define PHY_ID_KS8041 0x00221510 -#define PHY_ID_KS8051 0x00221550 -/* both for ks8001 Rev. A/B, and for ks8721 Rev 3. */ -#define PHY_ID_KS8001 0x0022161A +/* Operation Mode Strap Override */ +#define MII_KSZPHY_OMSO 0x16 +#define KSZPHY_OMSO_B_CAST_OFF (1 << 9) +#define KSZPHY_OMSO_RMII_OVERRIDE (1 << 1) +#define KSZPHY_OMSO_MII_OVERRIDE (1 << 0) /* general Interrupt control/status reg in vendor specific block. */ #define MII_KSZPHY_INTCS 0x1B @@ -46,6 +52,47 @@ #define KSZPHY_CTRL_INT_ACTIVE_HIGH (1 << 9) #define KSZ9021_CTRL_INT_ACTIVE_HIGH (1 << 14) #define KS8737_CTRL_INT_ACTIVE_HIGH (1 << 14) +#define KSZ8051_RMII_50MHZ_CLK (1 << 7) + +/* Write/read to/from extended registers */ +#define MII_KSZPHY_EXTREG 0x0b +#define KSZPHY_EXTREG_WRITE 0x8000 + +#define MII_KSZPHY_EXTREG_WRITE 0x0c +#define MII_KSZPHY_EXTREG_READ 0x0d + +/* Extended registers */ +#define MII_KSZPHY_CLK_CONTROL_PAD_SKEW 0x104 +#define MII_KSZPHY_RX_DATA_PAD_SKEW 0x105 +#define MII_KSZPHY_TX_DATA_PAD_SKEW 0x106 + +#define PS_TO_REG 200 + +static int ksz_config_flags(struct phy_device *phydev) +{ + int regval; + + if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) { + regval = phy_read(phydev, MII_KSZPHY_CTRL); + regval |= KSZ8051_RMII_50MHZ_CLK; + return phy_write(phydev, MII_KSZPHY_CTRL, regval); + } + return 0; +} + +static int kszphy_extended_write(struct phy_device *phydev, + u32 regnum, u16 val) +{ + phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum); + return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val); +} + +static int kszphy_extended_read(struct phy_device *phydev, + u32 regnum) +{ + phy_write(phydev, MII_KSZPHY_EXTREG, regnum); + return phy_read(phydev, MII_KSZPHY_EXTREG_READ); +} static int kszphy_ack_interrupt(struct phy_device *phydev) { @@ -101,12 +148,280 @@ static int ks8737_config_intr(struct phy_device *phydev) return rc < 0 ? rc : 0; } +static int kszphy_setup_led(struct phy_device *phydev, + unsigned int reg, unsigned int shift) +{ + + struct device *dev = &phydev->dev; + struct device_node *of_node = dev->of_node; + int rc, temp; + u32 val; + + if (!of_node && dev->parent->of_node) + of_node = dev->parent->of_node; + + if (of_property_read_u32(of_node, "micrel,led-mode", &val)) + return 0; + + temp = phy_read(phydev, reg); + if (temp < 0) + return temp; + + temp &= ~(3 << shift); + temp |= val << shift; + rc = phy_write(phydev, reg, temp); + + return rc < 0 ? rc : 0; +} + static int kszphy_config_init(struct phy_device *phydev) { return 0; } -static struct phy_driver ks8737_driver = { +static int kszphy_config_init_led8041(struct phy_device *phydev) +{ + /* single led control, register 0x1e bits 15..14 */ + return kszphy_setup_led(phydev, 0x1e, 14); +} + +static int ksz8021_config_init(struct phy_device *phydev) +{ + const u16 val = KSZPHY_OMSO_B_CAST_OFF | KSZPHY_OMSO_RMII_OVERRIDE; + int rc; + + rc = kszphy_setup_led(phydev, 0x1f, 4); + if (rc) + dev_err(&phydev->dev, "failed to set led mode\n"); + + phy_write(phydev, MII_KSZPHY_OMSO, val); + rc = ksz_config_flags(phydev); + return rc < 0 ? rc : 0; +} + +static int ks8051_config_init(struct phy_device *phydev) +{ + int rc; + + rc = kszphy_setup_led(phydev, 0x1f, 4); + if (rc) + dev_err(&phydev->dev, "failed to set led mode\n"); + + rc = ksz_config_flags(phydev); + return rc < 0 ? rc : 0; +} + +static int ksz9021_load_values_from_of(struct phy_device *phydev, + struct device_node *of_node, u16 reg, + char *field1, char *field2, + char *field3, char *field4) +{ + int val1 = -1; + int val2 = -2; + int val3 = -3; + int val4 = -4; + int newval; + int matches = 0; + + if (!of_property_read_u32(of_node, field1, &val1)) + matches++; + + if (!of_property_read_u32(of_node, field2, &val2)) + matches++; + + if (!of_property_read_u32(of_node, field3, &val3)) + matches++; + + if (!of_property_read_u32(of_node, field4, &val4)) + matches++; + + if (!matches) + return 0; + + if (matches < 4) + newval = kszphy_extended_read(phydev, reg); + else + newval = 0; + + if (val1 != -1) + newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0); + + if (val2 != -2) + newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4); + + if (val3 != -3) + newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8); + + if (val4 != -4) + newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12); + + return kszphy_extended_write(phydev, reg, newval); +} + +static int ksz9021_config_init(struct phy_device *phydev) +{ + struct device *dev = &phydev->dev; + struct device_node *of_node = dev->of_node; + + if (!of_node && dev->parent->of_node) + of_node = dev->parent->of_node; + + if (of_node) { + ksz9021_load_values_from_of(phydev, of_node, + MII_KSZPHY_CLK_CONTROL_PAD_SKEW, + "txen-skew-ps", "txc-skew-ps", + "rxdv-skew-ps", "rxc-skew-ps"); + ksz9021_load_values_from_of(phydev, of_node, + MII_KSZPHY_RX_DATA_PAD_SKEW, + "rxd0-skew-ps", "rxd1-skew-ps", + "rxd2-skew-ps", "rxd3-skew-ps"); + ksz9021_load_values_from_of(phydev, of_node, + MII_KSZPHY_TX_DATA_PAD_SKEW, + "txd0-skew-ps", "txd1-skew-ps", + "txd2-skew-ps", "txd3-skew-ps"); + } + return 0; +} + +#define MII_KSZ9031RN_MMD_CTRL_REG 0x0d +#define MII_KSZ9031RN_MMD_REGDATA_REG 0x0e +#define OP_DATA 1 +#define KSZ9031_PS_TO_REG 60 + +/* Extended registers */ +#define MII_KSZ9031RN_CONTROL_PAD_SKEW 4 +#define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5 +#define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6 +#define MII_KSZ9031RN_CLK_PAD_SKEW 8 + +static int ksz9031_extended_write(struct phy_device *phydev, + u8 mode, u32 dev_addr, u32 regnum, u16 val) +{ + phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr); + phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum); + phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr); + return phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, val); +} + +static int ksz9031_extended_read(struct phy_device *phydev, + u8 mode, u32 dev_addr, u32 regnum) +{ + phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr); + phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum); + phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr); + return phy_read(phydev, MII_KSZ9031RN_MMD_REGDATA_REG); +} + +static int ksz9031_of_load_skew_values(struct phy_device *phydev, + struct device_node *of_node, + u16 reg, size_t field_sz, + char *field[], u8 numfields) +{ + int val[4] = {-1, -2, -3, -4}; + int matches = 0; + u16 mask; + u16 maxval; + u16 newval; + int i; + + for (i = 0; i < numfields; i++) + if (!of_property_read_u32(of_node, field[i], val + i)) + matches++; + + if (!matches) + return 0; + + if (matches < numfields) + newval = ksz9031_extended_read(phydev, OP_DATA, 2, reg); + else + newval = 0; + + maxval = (field_sz == 4) ? 0xf : 0x1f; + for (i = 0; i < numfields; i++) + if (val[i] != -(i + 1)) { + mask = 0xffff; + mask ^= maxval << (field_sz * i); + newval = (newval & mask) | + (((val[i] / KSZ9031_PS_TO_REG) & maxval) + << (field_sz * i)); + } + + return ksz9031_extended_write(phydev, OP_DATA, 2, reg, newval); +} + +static int ksz9031_config_init(struct phy_device *phydev) +{ + struct device *dev = &phydev->dev; + struct device_node *of_node = dev->of_node; + char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"}; + char *rx_data_skews[4] = { + "rxd0-skew-ps", "rxd1-skew-ps", + "rxd2-skew-ps", "rxd3-skew-ps" + }; + char *tx_data_skews[4] = { + "txd0-skew-ps", "txd1-skew-ps", + "txd2-skew-ps", "txd3-skew-ps" + }; + char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"}; + + if (!of_node && dev->parent->of_node) + of_node = dev->parent->of_node; + + if (of_node) { + ksz9031_of_load_skew_values(phydev, of_node, + MII_KSZ9031RN_CLK_PAD_SKEW, 5, + clk_skews, 2); + + ksz9031_of_load_skew_values(phydev, of_node, + MII_KSZ9031RN_CONTROL_PAD_SKEW, 4, + control_skews, 2); + + ksz9031_of_load_skew_values(phydev, of_node, + MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4, + rx_data_skews, 4); + + ksz9031_of_load_skew_values(phydev, of_node, + MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, + tx_data_skews, 4); + } + return 0; +} + +#define KSZ8873MLL_GLOBAL_CONTROL_4 0x06 +#define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX (1 << 6) +#define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED (1 << 4) +static int ksz8873mll_read_status(struct phy_device *phydev) +{ + int regval; + + /* dummy read */ + regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); + + regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); + + if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX) + phydev->duplex = DUPLEX_HALF; + else + phydev->duplex = DUPLEX_FULL; + + if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED) + phydev->speed = SPEED_10; + else + phydev->speed = SPEED_100; + + phydev->link = 1; + phydev->pause = phydev->asym_pause = 0; + + return 0; +} + +static int ksz8873mll_config_aneg(struct phy_device *phydev) +{ + return 0; +} + +static struct phy_driver ksphy_driver[] = { +{ .phy_id = PHY_ID_KS8737, .phy_id_mask = 0x00fffff0, .name = "Micrel KS8737", @@ -117,42 +432,115 @@ static struct phy_driver ks8737_driver = { .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = ks8737_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, .driver = { .owner = THIS_MODULE,}, -}; - -static struct phy_driver ks8041_driver = { - .phy_id = PHY_ID_KS8041, +}, { + .phy_id = PHY_ID_KSZ8021, + .phy_id_mask = 0x00ffffff, + .name = "Micrel KSZ8021 or KSZ8031", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = ksz8021_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_KSZ8031, + .phy_id_mask = 0x00ffffff, + .name = "Micrel KSZ8031", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = ksz8021_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_KSZ8041, .phy_id_mask = 0x00fffff0, - .name = "Micrel KS8041", + .name = "Micrel KSZ8041", .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, - .config_init = kszphy_config_init, + .config_init = kszphy_config_init_led8041, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, .driver = { .owner = THIS_MODULE,}, -}; - -static struct phy_driver ks8051_driver = { - .phy_id = PHY_ID_KS8051, +}, { + .phy_id = PHY_ID_KSZ8041RNLI, + .phy_id_mask = 0x00fffff0, + .name = "Micrel KSZ8041RNLI", + .features = PHY_BASIC_FEATURES | + SUPPORTED_Pause | SUPPORTED_Asym_Pause, + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = kszphy_config_init_led8041, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_KSZ8051, .phy_id_mask = 0x00fffff0, - .name = "Micrel KS8051", + .name = "Micrel KSZ8051", .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = ks8051_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_KSZ8001, + .name = "Micrel KSZ8001 or KS8721", + .phy_id_mask = 0x00ffffff, + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = kszphy_config_init_led8041, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_KSZ8081, + .name = "Micrel KSZ8081 or KSZ8091", + .phy_id_mask = 0x00fffff0, + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, .config_init = kszphy_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, .driver = { .owner = THIS_MODULE,}, -}; - -static struct phy_driver ks8001_driver = { - .phy_id = PHY_ID_KS8001, - .name = "Micrel KS8001 or KS8721", +}, { + .phy_id = PHY_ID_KSZ8061, + .name = "Micrel KSZ8061", .phy_id_mask = 0x00fffff0, .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, @@ -161,67 +549,74 @@ static struct phy_driver ks8001_driver = { .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, .driver = { .owner = THIS_MODULE,}, -}; - -static struct phy_driver ksz9021_driver = { +}, { .phy_id = PHY_ID_KSZ9021, - .phy_id_mask = 0x000fff10, + .phy_id_mask = 0x000ffffe, .name = "Micrel KSZ9021 Gigabit PHY", + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = ksz9021_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = kszphy_ack_interrupt, + .config_intr = ksz9021_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE, }, +}, { + .phy_id = PHY_ID_KSZ9031, + .phy_id_mask = 0x00fffff0, + .name = "Micrel KSZ9031 Gigabit PHY", .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, - .config_init = kszphy_config_init, + .config_init = ksz9031_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = ksz9021_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, .driver = { .owner = THIS_MODULE, }, -}; +}, { + .phy_id = PHY_ID_KSZ8873MLL, + .phy_id_mask = 0x00fffff0, + .name = "Micrel KSZ8873MLL Switch", + .features = (SUPPORTED_Pause | SUPPORTED_Asym_Pause), + .flags = PHY_HAS_MAGICANEG, + .config_init = kszphy_config_init, + .config_aneg = ksz8873mll_config_aneg, + .read_status = ksz8873mll_read_status, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE, }, +}, { + .phy_id = PHY_ID_KSZ886X, + .phy_id_mask = 0x00fffff0, + .name = "Micrel KSZ886X Switch", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), + .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, + .config_init = kszphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE, }, +} }; static int __init ksphy_init(void) { - int ret; - - ret = phy_driver_register(&ks8001_driver); - if (ret) - goto err1; - - ret = phy_driver_register(&ksz9021_driver); - if (ret) - goto err2; - - ret = phy_driver_register(&ks8737_driver); - if (ret) - goto err3; - ret = phy_driver_register(&ks8041_driver); - if (ret) - goto err4; - ret = phy_driver_register(&ks8051_driver); - if (ret) - goto err5; - - return 0; - -err5: - phy_driver_unregister(&ks8041_driver); -err4: - phy_driver_unregister(&ks8737_driver); -err3: - phy_driver_unregister(&ksz9021_driver); -err2: - phy_driver_unregister(&ks8001_driver); -err1: - return ret; + return phy_drivers_register(ksphy_driver, + ARRAY_SIZE(ksphy_driver)); } static void __exit ksphy_exit(void) { - phy_driver_unregister(&ks8001_driver); - phy_driver_unregister(&ks8737_driver); - phy_driver_unregister(&ksz9021_driver); - phy_driver_unregister(&ks8041_driver); - phy_driver_unregister(&ks8051_driver); + phy_drivers_unregister(ksphy_driver, + ARRAY_SIZE(ksphy_driver)); } module_init(ksphy_init); @@ -232,11 +627,18 @@ MODULE_AUTHOR("David J. Choi"); MODULE_LICENSE("GPL"); static struct mdio_device_id __maybe_unused micrel_tbl[] = { - { PHY_ID_KSZ9021, 0x000fff10 }, - { PHY_ID_KS8001, 0x00fffff0 }, + { PHY_ID_KSZ9021, 0x000ffffe }, + { PHY_ID_KSZ9031, 0x00fffff0 }, + { PHY_ID_KSZ8001, 0x00ffffff }, { PHY_ID_KS8737, 0x00fffff0 }, - { PHY_ID_KS8041, 0x00fffff0 }, - { PHY_ID_KS8051, 0x00fffff0 }, + { PHY_ID_KSZ8021, 0x00ffffff }, + { PHY_ID_KSZ8031, 0x00ffffff }, + { PHY_ID_KSZ8041, 0x00fffff0 }, + { PHY_ID_KSZ8051, 0x00fffff0 }, + { PHY_ID_KSZ8061, 0x00fffff0 }, + { PHY_ID_KSZ8081, 0x00fffff0 }, + { PHY_ID_KSZ8873MLL, 0x00fffff0 }, + { PHY_ID_KSZ886X, 0x00fffff0 }, { } }; |