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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (c) 2026 David Yang
*/
#ifndef _YT_LEDS_H
#define _YT_LEDS_H
#include <linux/bitfield.h>
#include <linux/bits.h>
#include <linux/kconfig.h>
#include <linux/leds.h>
#define YT921X_LED_CTRL 0xd0000
#define YT921X_LED_CTRL_UNK BIT(21)
#define YT921X_LED_CTRL_LOOPDETECT_BLINK_M GENMASK(20, 19) /* cycle = 512 * x ms */
#define YT921X_LED_CTRL_LOOPDETECT_BLINK(x) FIELD_PREP(YT921X_LED_CTRL_LOOPDETECT_BLINK_M, (x))
#define YT921X_LED_CTRL_PORT_NUM_M GENMASK(16, 13)
#define YT921X_LED_CTRL_PORT_NUM(x) FIELD_PREP(YT921X_LED_CTRL_PORT_NUM_M, (x))
#define YT921X_LED_CTRL_MODE_M GENMASK(1, 0)
#define YT921X_LED_CTRL_MODE(x) FIELD_PREP(YT921X_LED_CTRL_MODE_M, (x))
#define YT921X_LED_CTRL_MODE_PARALLEL YT921X_LED_CTRL_MODE(0)
#define YT921X_LED_CTRL_MODE_SERIAL YT921X_LED_CTRL_MODE(2)
#define YT921X_LED0_PORTn(port) (0xd0004 + 4 * (port))
#define YT921X_LED0_PORT_ACT_M GENMASK(17, 0)
#define YT921X_LED0_PORT_ACT_LINK_TRY_DIS BIT(17)
#define YT921X_LED0_PORT_ACT_COLLISION_BLINK_INDI BIT(16)
#define YT921X_LED1_PORTn(port) (0xd0040 + 4 * (port))
#define YT921X_LED1_PORT_OTHER_BLINK_M GENMASK(31, 30) /* cycle = 512 >> x ms */
#define YT921X_LED1_PORT_OTHER_BLINK(x) FIELD_PREP(YT921X_LED1_PORT_OTHER_BLINK_M, (x))
#define YT921X_LED1_PORT_EEE_BLINK_M GENMASK(29, 28) /* cycle = 512 >> x ms */
#define YT921X_LED1_PORT_EEE_BLINK(x) FIELD_PREP(YT921X_LED1_PORT_EEE_BLINK_M, (x))
#define YT921X_LED1_PORT_BLINK_DUTY_COMP BIT(27)
#define YT921X_LED1_PORT_BLINK_DUTY_M GENMASK(26, 25)
#define YT921X_LED1_PORT_BLINK_DUTY(x) FIELD_PREP(YT921X_LED1_PORT_BLINK_DUTY_M, (x))
#define YT921X_LED1_PORT_BLINK_DUTY_1_2 YT921X_LED1_PORT_BLINK_DUTY(0)
#define YT921X_LED1_PORT_BLINK_DUTY_2_3 YT921X_LED1_PORT_BLINK_DUTY(1)
#define YT921X_LED1_PORT_BLINK_DUTY_3_4 YT921X_LED1_PORT_BLINK_DUTY(2)
#define YT921X_LED1_PORT_BLINK_DUTY_5_6 YT921X_LED1_PORT_BLINK_DUTY(3)
#define YT921X_LED2_PORTn(port) (0xd0080 + 4 * (port))
#define YT921X_LED2_PORT_FORCEn_M(grp) GENMASK(4 * (grp) + 19, 4 * (grp) + 18)
#define YT921X_LED2_PORT_FORCEn(grp, x) ((x) << (4 * (grp) + 18))
#define YT921X_LED2_PORT_FORCEn_DONTCARE(grp) YT921X_LED2_PORT_FORCEn(grp, 0)
#define YT921X_LED2_PORT_FORCEn_BLINK(grp) YT921X_LED2_PORT_FORCEn(grp, 1)
#define YT921X_LED2_PORT_FORCEn_ON(grp) YT921X_LED2_PORT_FORCEn(grp, 2)
#define YT921X_LED2_PORT_FORCEn_OFF(grp) YT921X_LED2_PORT_FORCEn(grp, 3)
#define YT921X_LED2_PORT_FORCE_BLINKn_M(grp) GENMASK(4 * (grp) + 17, 4 * (grp) + 16) /* cycle = 512 << x ms */
#define YT921X_LED2_PORT_FORCE_BLINKn(grp, x) ((x) << (4 * (grp) + 16))
#define YT921X_LED2_PORT_FORCE_BLINKn_OTHER(grp) YT921X_LED2_PORT_FORCE_BLINKn(grp, 3)
#define YT921X_LEDx_PORT_ACT_M GENMASK(15, 0)
#define YT921X_LEDx_PORT_ACT_EEE_BLINK BIT(15)
#define YT921X_LEDx_PORT_ACT_LOOPDETECT_BLINK BIT(14)
#define YT921X_LEDx_PORT_ACT_ACTIVE_BLINK BIT(13)
#define YT921X_LEDx_PORT_ACT_DUPLEX_FULL BIT(12)
#define YT921X_LEDx_PORT_ACT_DUPLEX_HALF BIT(11)
#define YT921X_LEDx_PORT_ACT_TX_BLINK BIT(10)
#define YT921X_LEDx_PORT_ACT_RX_BLINK BIT(9)
#define YT921X_LEDx_PORT_ACT_TX BIT(8)
#define YT921X_LEDx_PORT_ACT_RX BIT(7)
#define YT921X_LEDx_PORT_ACT_1000M BIT(6)
#define YT921X_LEDx_PORT_ACT_100M BIT(5)
#define YT921X_LEDx_PORT_ACT_10M BIT(4)
#define YT921X_LEDx_PORT_ACT_COLLISION_BLINK BIT(3)
#define YT921X_LEDx_PORT_ACT_1000M_BLINK BIT(2)
#define YT921X_LEDx_PORT_ACT_100M_BLINK BIT(1)
#define YT921X_LEDx_PORT_ACT_10M_BLINK BIT(0)
#define YT921X_LED_SER_CTRL 0xd0100
#define YT921X_LED_SER_CTRL_UNK GENMASK(25, 24) /* delay? */
#define YT921X_LED_SER_CTRL_ACTIVE_LOW BIT(4)
#define YT921X_LED_SER_CTRL_GRP_NUM_M GENMASK(1, 0) /* #grp - 1 */
#define YT921X_LED_SER_CTRL_GRP_NUM(x) FIELD_PREP(YT921X_LED_SER_CTRL_GRP_NUM_M, (x))
#define YT921X_LED_SER_MAPnm(grp, port) (0xd0104 + 8 * (2 - (grp)) + 4 * ((port) / 5))
#define YT921X_LED_SER_MAP_DSTn_PORT_M(port) GENMASK(6 * ((port) % 5) + 5, 6 * ((port) % 5) + 2)
#define YT921X_LED_SER_MAP_DSTn_PORT(port, x) ((x) << (6 * ((port) % 5) + 2))
#define YT921X_LED_SER_MAP_DSTn_LED_M(port) GENMASK(6 * ((port) % 5) + 1, 6 * ((port) % 5))
#define YT921X_LED_SER_MAP_DSTn_LED(port, x) ((x) << (6 * ((port) % 5)))
#define YT921X_LED_PAR_PORTS 0xd01c4
#define YT921X_LED_PAR_INV 0xd01c8
#define YT921X_LED_PAR_INV_INVnm(grp, port) BIT(10 * (grp) + (port))
#define YT921X_LED_PAR_MAPn(port) (0xd01d0 + 4 * (port))
#define YT921X_LED_PAR_MAP_DSTn_PORT_M(grp) GENMASK(6 * (grp) + 5, 6 * (grp) + 2)
#define YT921X_LED_PAR_MAP_DSTn_PORT(grp, x) ((x) << (6 * (grp) + 2))
#define YT921X_LED_PAR_MAP_DSTn_LED_M(grp) GENMASK(6 * (grp) + 1, 6 * (grp))
#define YT921X_LED_PAR_MAP_DSTn_LED(grp, x) ((x) << (6 * (grp)))
#define YT921X_LED_BLINK_MIN 64
#define YT921X_LED_BLINK_DEF 512
#define YT921X_LED_BLINK_MAX 2048
/* 2 * lcm(2, 3, 4, 6) */
#define YT921X_LED_DUTY_DENOM 24
#define YT921X_LED_DUTY(nom, denom) (YT921X_LED_DUTY_DENOM * (nom) / (denom))
struct yt921x_priv;
struct yt921x_led {
struct led_classdev cdev;
struct yt921x_port *port;
unsigned char group;
};
#if IS_ENABLED(CONFIG_NET_DSA_YT921X_LEDS)
void yt921x_leds_remove(struct yt921x_priv *priv);
int yt921x_leds_setup(struct yt921x_priv *priv);
#else
static inline void yt921x_leds_remove(struct yt921x_priv *priv) {}
static inline int yt921x_leds_setup(struct yt921x_priv *priv)
{
return 0;
}
#endif
#endif
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