// SPDX-License-Identifier: MIT
/*
 * Copyright © 2018 Intel Corporation
 */

#include <linux/dmi.h>

#include <drm/drm_print.h>

#include "intel_display_core.h"
#include "intel_display_types.h"
#include "intel_quirks.h"

static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)
{
        display->quirks.mask |= BIT(quirk);
}

static void intel_set_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
{
        intel_dp->quirks.mask |= BIT(quirk);
}

/*
 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
 */
static void quirk_ssc_force_disable(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_LVDS_SSC_DISABLE);
        drm_info(display->drm, "applying lvds SSC disable quirk\n");
}

/*
 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
 * brightness value
 */
static void quirk_invert_brightness(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_INVERT_BRIGHTNESS);
        drm_info(display->drm, "applying inverted panel brightness quirk\n");
}

/* Some VBT's incorrectly indicate no backlight is present */
static void quirk_backlight_present(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_BACKLIGHT_PRESENT);
        drm_info(display->drm, "applying backlight present quirk\n");
}

/* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
 * which is 300 ms greater than eDP spec T12 min.
 */
static void quirk_increase_t12_delay(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_INCREASE_T12_DELAY);
        drm_info(display->drm, "Applying T12 delay quirk\n");
}

/*
 * GeminiLake NUC HDMI outputs require additional off time
 * this allows the onboard retimer to correctly sync to signal
 */
static void quirk_increase_ddi_disabled_time(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_INCREASE_DDI_DISABLED_TIME);
        drm_info(display->drm, "Applying Increase DDI Disabled quirk\n");
}

static void quirk_no_pps_backlight_power_hook(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);
        drm_info(display->drm, "Applying no pps backlight power quirk\n");
}

static void quirk_fw_sync_len(struct intel_dp *intel_dp)
{
        struct intel_display *display = to_intel_display(intel_dp);

        intel_set_dpcd_quirk(intel_dp, QUIRK_FW_SYNC_LEN);
        drm_info(display->drm, "Applying Fast Wake sync pulse count quirk\n");
}

static void quirk_edp_limit_rate_hbr2(struct intel_display *display)
{
        intel_set_quirk(display, QUIRK_EDP_LIMIT_RATE_HBR2);
        drm_info(display->drm, "Applying eDP Limit rate to HBR2 quirk\n");
}

struct intel_quirk {
        int device;
        int subsystem_vendor;
        int subsystem_device;
        void (*hook)(struct intel_display *display);
};

struct intel_dpcd_quirk {
        int device;
        int subsystem_vendor;
        int subsystem_device;
        u8 sink_oui[3];
        u8 sink_device_id[6];
        void (*hook)(struct intel_dp *intel_dp);
};

#define SINK_OUI(first, second, third) { (first), (second), (third) }
#define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \
        { (first), (second), (third), (fourth), (fifth), (sixth) }

#define SINK_DEVICE_ID_ANY      SINK_DEVICE_ID(0, 0, 0, 0, 0, 0)

/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
struct intel_dmi_quirk {
        void (*hook)(struct intel_display *display);
        const struct dmi_system_id (*dmi_id_list)[];
};

static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
{
        DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
        return 1;
}

static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)
{
        DRM_INFO("No pps backlight support on %s\n", id->ident);
        return 1;
}

static const struct intel_dmi_quirk intel_dmi_quirks[] = {
        {
                .dmi_id_list = &(const struct dmi_system_id[]) {
                        {
                                .callback = intel_dmi_reverse_brightness,
                                .ident = "NCR Corporation",
                                .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
                                            DMI_MATCH(DMI_PRODUCT_NAME, ""),
                                },
                        },
                        {
                                .callback = intel_dmi_reverse_brightness,
                                .ident = "Thundersoft TST178 tablet",
                                /* DMI strings are too generic, also match on BIOS date */
                                .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
                                            DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
                                            DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
                                            DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),
                                },
                        },
                        { }  /* terminating entry */
                },
                .hook = quirk_invert_brightness,
        },
        {
                .dmi_id_list = &(const struct dmi_system_id[]) {
                        {
                                .callback = intel_dmi_no_pps_backlight,
                                .ident = "Google Lillipup sku524294",
                                .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
                                            DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
                                            DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),
                                },
                        },
                        {
                                .callback = intel_dmi_no_pps_backlight,
                                .ident = "Google Lillipup sku524295",
                                .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
                                            DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
                                            DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),
                                },
                        },
                        { }
                },
                .hook = quirk_no_pps_backlight_power_hook,
        },
};

static struct intel_quirk intel_quirks[] = {
        /* Lenovo U160 cannot use SSC on LVDS */
        { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },

        /* Sony Vaio Y cannot use SSC on LVDS */
        { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },

        /* Acer Aspire 5734Z must invert backlight brightness */
        { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },

        /* Acer/eMachines G725 */
        { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },

        /* Acer/eMachines e725 */
        { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },

        /* Acer/Packard Bell NCL20 */
        { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },

        /* Acer Aspire 4736Z */
        { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },

        /* Acer Aspire 5336 */
        { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },

        /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
        { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },

        /* Acer C720 Chromebook (Core i3 4005U) */
        { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },

        /* Apple Macbook 2,1 (Core 2 T7400) */
        { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },

        /* Apple Macbook 4,1 */
        { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },

        /* Toshiba CB35 Chromebook (Celeron 2955U) */
        { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },

        /* HP Chromebook 14 (Celeron 2955U) */
        { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },

        /* Dell Chromebook 11 */
        { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },

        /* Dell Chromebook 11 (2015 version) */
        { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },

        /* Toshiba Satellite P50-C-18C */
        { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },

        /* GeminiLake NUC */
        { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
        { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
        /* ASRock ITX*/
        { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
        { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
        /* ECS Liva Q2 */
        { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
        { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
        /* HP Notebook - 14-r206nv */
        { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },

        /* Dell XPS 13 7390 2-in-1 */
        { 0x8a52, 0x1028, 0x08b0, quirk_edp_limit_rate_hbr2 },
};

static const struct intel_dpcd_quirk intel_dpcd_quirks[] = {
        /* Dell Precision 5490 */
        {
                .device = 0x7d55,
                .subsystem_vendor = 0x1028,
                .subsystem_device = 0x0cc7,
                .sink_oui = SINK_OUI(0x38, 0xec, 0x11),
                .hook = quirk_fw_sync_len,
        },

};

void intel_init_quirks(struct intel_display *display)
{
        struct pci_dev *d = to_pci_dev(display->drm->dev);
        int i;

        for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
                struct intel_quirk *q = &intel_quirks[i];

                if (d->device == q->device &&
                    (d->subsystem_vendor == q->subsystem_vendor ||
                     q->subsystem_vendor == PCI_ANY_ID) &&
                    (d->subsystem_device == q->subsystem_device ||
                     q->subsystem_device == PCI_ANY_ID))
                        q->hook(display);
        }
        for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
                if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
                        intel_dmi_quirks[i].hook(display);
        }
}

void intel_init_dpcd_quirks(struct intel_dp *intel_dp,
                            const struct drm_dp_dpcd_ident *ident)
{
        struct intel_display *display = to_intel_display(intel_dp);
        struct pci_dev *d = to_pci_dev(display->drm->dev);
        int i;

        for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) {
                const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i];

                if (d->device == q->device &&
                    (d->subsystem_vendor == q->subsystem_vendor ||
                     q->subsystem_vendor == PCI_ANY_ID) &&
                    (d->subsystem_device == q->subsystem_device ||
                     q->subsystem_device == PCI_ANY_ID) &&
                    !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) &&
                    (!memcmp(q->sink_device_id, ident->device_id,
                            sizeof(ident->device_id)) ||
                     mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id))))
                        q->hook(intel_dp);
        }
}

bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)
{
        return display->quirks.mask & BIT(quirk);
}

bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
{
        return intel_dp->quirks.mask & BIT(quirk);
}