mirror of
https://git.proxmox.com/git/fwupd
synced 2025-05-16 23:26:19 +00:00
56ac823af9
Some plugins have devices with more than one protocol. Logically the protocol belongs to the device, not the plugin, and in the future we could use this to further check firmware that's about to be deployed. This is also not exported into libfwupd (yet?) as it's remains a debug-feature only -- protocols are not actually required for devices to be added.
444 lines
13 KiB
C
444 lines
13 KiB
C
/*
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* Copyright (C) 2018 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include "fu-superio-common.h"
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#include "fu-superio-device.h"
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#define FU_PLUGIN_SUPERIO_TIMEOUT 0.25 /* s */
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typedef struct
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{
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gchar *chipset;
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guint16 port;
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guint16 pm1_iobad0;
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guint16 pm1_iobad1;
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guint16 id;
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} FuSuperioDevicePrivate;
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G_DEFINE_TYPE_WITH_PRIVATE (FuSuperioDevice, fu_superio_device, FU_TYPE_UDEV_DEVICE)
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#define GET_PRIVATE(o) (fu_superio_device_get_instance_private (o))
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enum {
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PROP_0,
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PROP_CHIPSET,
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PROP_PORT,
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PROP_ID,
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PROP_LAST
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};
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gboolean
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fu_superio_device_regval (FuSuperioDevice *self, guint8 addr,
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guint8 *data, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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if (!fu_udev_device_pwrite (FU_UDEV_DEVICE (self), priv->port, addr, error))
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return FALSE;
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if (!fu_udev_device_pread (FU_UDEV_DEVICE (self), priv->port + 1, data, error))
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return FALSE;
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return TRUE;
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}
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gboolean
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fu_superio_device_regval16 (FuSuperioDevice *self, guint8 addr,
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guint16 *data, GError **error)
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{
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guint8 msb;
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guint8 lsb;
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if (!fu_superio_device_regval (self, addr, &msb, error))
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return FALSE;
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if (!fu_superio_device_regval (self, addr + 1, &lsb, error))
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return FALSE;
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*data = ((guint16) msb << 8) | (guint16) lsb;
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return TRUE;
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}
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gboolean
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fu_superio_device_regwrite (FuSuperioDevice *self, guint8 addr,
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guint8 data, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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if (!fu_udev_device_pwrite (FU_UDEV_DEVICE (self), priv->port, addr, error))
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return FALSE;
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if (!fu_udev_device_pwrite (FU_UDEV_DEVICE (self), priv->port + 1, data, error))
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return FALSE;
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return TRUE;
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}
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static gboolean
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fu_superio_device_set_ldn (FuSuperioDevice *self, guint8 ldn, GError **error)
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{
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return fu_superio_device_regwrite (self, SIO_LDNxx_IDX_LDNSEL, ldn, error);
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}
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static gboolean
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fu_superio_device_regdump (FuSuperioDevice *self, guint8 ldn, GError **error)
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{
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const gchar *ldnstr = fu_superio_ldn_to_text (ldn);
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guint8 buf[0xff] = { 0x00 };
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guint16 iobad0 = 0x0;
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guint16 iobad1 = 0x0;
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g_autoptr(GString) str = g_string_new (NULL);
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/* set LDN */
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if (!fu_superio_device_set_ldn (self, ldn, error))
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return FALSE;
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for (guint i = 0x00; i < 0xff; i++) {
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if (!fu_superio_device_regval (self, i, &buf[i], error))
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return FALSE;
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}
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/* get the i/o base addresses */
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if (!fu_superio_device_regval16 (self, SIO_LDNxx_IDX_IOBAD0, &iobad0, error))
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return FALSE;
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if (!fu_superio_device_regval16 (self, SIO_LDNxx_IDX_IOBAD1, &iobad1, error))
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return FALSE;
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g_string_append_printf (str, "LDN:0x%02x ", ldn);
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if (iobad0 != 0x0)
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g_string_append_printf (str, "IOBAD0:0x%04x ", iobad0);
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if (iobad1 != 0x0)
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g_string_append_printf (str, "IOBAD1:0x%04x ", iobad1);
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if (ldnstr != NULL)
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g_string_append_printf (str, "(%s)", ldnstr);
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fu_common_dump_raw (G_LOG_DOMAIN, str->str, buf, sizeof(buf));
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return TRUE;
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}
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static void
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fu_superio_device_to_string (FuDevice *device, guint idt, GString *str)
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{
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FuSuperioDevice *self = FU_SUPERIO_DEVICE (device);
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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fu_common_string_append_kv (str, idt, "Chipset", priv->chipset);
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fu_common_string_append_kx (str, idt, "Id", priv->id);
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fu_common_string_append_kx (str, idt, "Port", priv->port);
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fu_common_string_append_kx (str, idt, "PM1_IOBAD0", priv->pm1_iobad0);
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fu_common_string_append_kx (str, idt, "PM1_IOBAD1", priv->pm1_iobad1);
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}
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static guint16
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fu_superio_device_check_id (FuSuperioDevice *self, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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guint16 id_tmp;
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/* check ID, which can be done from any LDN */
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if (!fu_superio_device_regval16 (self, SIO_LDNxx_IDX_CHIPID1, &id_tmp, error))
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return FALSE;
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if (priv->id != id_tmp) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_NOT_SUPPORTED,
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"SuperIO chip not supported, got %04x, expected %04x",
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(guint) id_tmp, (guint) priv->id);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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fu_superio_device_wait_for (FuSuperioDevice *self, guint8 mask, gboolean set, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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g_autoptr(GTimer) timer = g_timer_new ();
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do {
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guint8 status = 0x00;
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if (!fu_udev_device_pread (FU_UDEV_DEVICE (self), priv->pm1_iobad1, &status, error))
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return FALSE;
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if (g_timer_elapsed (timer, NULL) > FU_PLUGIN_SUPERIO_TIMEOUT)
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break;
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if (set && (status & mask) != 0)
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return TRUE;
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if (!set && (status & mask) == 0)
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return TRUE;
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} while (TRUE);
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_TIMED_OUT,
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"timed out whilst waiting for 0x%02x:%i", mask, set);
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return FALSE;
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}
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gboolean
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fu_superio_device_ec_read (FuSuperioDevice *self, guint8 *data, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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if (!fu_superio_device_wait_for (self, SIO_STATUS_EC_OBF, TRUE, error))
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return FALSE;
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return fu_udev_device_pread (FU_UDEV_DEVICE (self), priv->pm1_iobad0, data, error);
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}
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gboolean
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fu_superio_device_ec_write0 (FuSuperioDevice *self, guint8 data, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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if (!fu_superio_device_wait_for (self, SIO_STATUS_EC_IBF, FALSE, error))
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return FALSE;
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return fu_udev_device_pwrite (FU_UDEV_DEVICE (self), priv->pm1_iobad0, data, error);
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}
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gboolean
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fu_superio_device_ec_write1 (FuSuperioDevice *self, guint8 data, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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if (!fu_superio_device_wait_for (self, SIO_STATUS_EC_IBF, FALSE, error))
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return FALSE;
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return fu_udev_device_pwrite (FU_UDEV_DEVICE (self), priv->pm1_iobad1, data, error);
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}
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static gboolean
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fu_superio_device_ec_flush (FuSuperioDevice *self, GError **error)
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{
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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guint8 status = 0x00;
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g_autoptr(GTimer) timer = g_timer_new ();
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do {
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guint8 unused = 0;
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if (!fu_udev_device_pread (FU_UDEV_DEVICE (self), priv->pm1_iobad1, &status, error))
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return FALSE;
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if ((status & SIO_STATUS_EC_OBF) == 0)
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break;
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if (!fu_udev_device_pread (FU_UDEV_DEVICE (self), priv->pm1_iobad0, &unused, error))
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return FALSE;
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if (g_timer_elapsed (timer, NULL) > FU_PLUGIN_SUPERIO_TIMEOUT) {
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g_set_error_literal (error,
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G_IO_ERROR,
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G_IO_ERROR_TIMED_OUT,
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"timed out whilst waiting for flush");
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return FALSE;
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}
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} while (TRUE);
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return TRUE;
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}
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gboolean
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fu_superio_device_ec_get_param (FuSuperioDevice *self, guint8 param, guint8 *data, GError **error)
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{
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if (!fu_superio_device_ec_write1 (self, SIO_CMD_EC_READ, error))
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return FALSE;
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if (!fu_superio_device_ec_write0 (self, param, error))
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return FALSE;
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return fu_superio_device_ec_read (self, data, error);
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}
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#if 0
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static gboolean
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fu_superio_device_ec_set_param (FuSuperioDevice *self, guint8 param, guint8 data, GError **error)
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{
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if (!fu_superio_device_ec_write1 (self, SIO_CMD_EC_WRITE, error))
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return FALSE;
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if (!fu_superio_device_ec_write0 (self, param, error))
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return FALSE;
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return fu_superio_device_ec_write0 (self, data, error);
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}
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#endif
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static gboolean
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fu_superio_device_probe (FuDevice *device, GError **error)
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{
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FuSuperioDevice *self = FU_SUPERIO_DEVICE (device);
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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g_autofree gchar *devid = NULL;
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g_autofree gchar *name = NULL;
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/* use the chipset name as the logical ID and for the GUID */
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fu_device_set_logical_id (device, priv->chipset);
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devid = g_strdup_printf ("SuperIO-%s", priv->chipset);
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fu_device_add_instance_id (device, devid);
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name = g_strdup_printf ("SuperIO %s", priv->chipset);
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fu_device_set_name (FU_DEVICE (self), name);
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return TRUE;
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}
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static gboolean
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fu_superio_device_setup (FuDevice *device, GError **error)
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{
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FuSuperioDeviceClass *klass = FU_SUPERIO_DEVICE_GET_CLASS (device);
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FuSuperioDevice *self = FU_SUPERIO_DEVICE (device);
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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/* check ID is correct */
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if (!fu_superio_device_check_id (self, error)) {
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g_prefix_error (error, "failed to probe id: ");
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return FALSE;
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}
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/* dump LDNs */
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if (g_getenv ("FWUPD_SUPERIO_VERBOSE") != NULL) {
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for (guint j = 0; j < SIO_LDN_LAST; j++) {
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if (!fu_superio_device_regdump (self, j, error))
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return FALSE;
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}
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}
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/* set Power Management I/F Channel 1 LDN */
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if (!fu_superio_device_set_ldn (self, SIO_LDN_PM1, error))
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return FALSE;
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/* get the PM1 IOBAD0 address */
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if (!fu_superio_device_regval16 (self, SIO_LDNxx_IDX_IOBAD0,
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&priv->pm1_iobad0, error))
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return FALSE;
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/* get the PM1 IOBAD1 address */
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if (!fu_superio_device_regval16 (self, SIO_LDNxx_IDX_IOBAD1,
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&priv->pm1_iobad1, error))
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return FALSE;
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/* drain */
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if (!fu_superio_device_ec_flush (self, error)) {
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g_prefix_error (error, "failed to flush: ");
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return FALSE;
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}
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/* dump PMC register map */
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if (g_getenv ("FWUPD_SUPERIO_VERBOSE") != NULL) {
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guint8 buf[0xff] = { 0x00 };
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for (guint i = 0x00; i < 0xff; i++) {
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g_autoptr(GError) error_local = NULL;
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if (!fu_superio_device_ec_get_param (self, i, &buf[i], &error_local)) {
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g_debug ("param: 0x%02x = %s", i, error_local->message);
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continue;
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}
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}
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fu_common_dump_raw (G_LOG_DOMAIN, "EC Registers", buf, 0x100);
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}
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/* subclassed setup */
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if (klass->setup != NULL)
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return klass->setup (self, error);
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/* success */
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return TRUE;
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}
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static FuFirmware *
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fu_superio_device_prepare_firmware (FuDevice *device,
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GBytes *fw,
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FwupdInstallFlags flags,
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GError **error)
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{
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gsize sz = 0;
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const guint8 *buf = g_bytes_get_data (fw, &sz);
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const guint8 sig1[] = { 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5, 0xa5 };
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const guint8 sig2[] = { 0x85, 0x12, 0x5a, 0x5a, 0xaa };
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/* find signature -- maybe ignore byte 0x14 too? */
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for (gsize off = 0; off < sz; off += 16) {
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if (memcmp (&buf[off], sig1, sizeof(sig1)) == 0 &&
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memcmp (&buf[off + 8], sig2, sizeof(sig2)) == 0) {
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g_debug ("found signature at 0x%04x", (guint) off);
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return fu_firmware_new_from_bytes (fw);
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}
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}
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g_set_error_literal (error,
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FWUPD_ERROR,
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FWUPD_ERROR_NOT_SUPPORTED,
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"did not detect signature in firmware image");
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return NULL;
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}
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static void
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fu_superio_device_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec)
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{
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FuSuperioDevice *self = FU_SUPERIO_DEVICE (object);
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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switch (prop_id) {
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case PROP_CHIPSET:
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g_value_set_string (value, priv->chipset);
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break;
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case PROP_PORT:
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g_value_set_uint (value, priv->port);
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break;
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case PROP_ID:
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g_value_set_uint (value, priv->id);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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fu_superio_device_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec)
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{
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FuSuperioDevice *self = FU_SUPERIO_DEVICE (object);
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FuSuperioDevicePrivate *priv = GET_PRIVATE (self);
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switch (prop_id) {
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case PROP_CHIPSET:
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g_free (priv->chipset);
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priv->chipset = g_value_dup_string (value);
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break;
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case PROP_PORT:
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priv->port = g_value_get_uint (value);
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break;
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case PROP_ID:
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priv->id = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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fu_superio_device_init (FuSuperioDevice *self)
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{
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fu_device_set_physical_id (FU_DEVICE (self), "/dev/port");
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fu_device_add_flag (FU_DEVICE (self), FWUPD_DEVICE_FLAG_INTERNAL);
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fu_device_add_flag (FU_DEVICE (self), FWUPD_DEVICE_FLAG_CAN_VERIFY_IMAGE);
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fu_device_set_protocol (FU_DEVICE (self), "tw.com.ite.superio");
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fu_device_set_summary (FU_DEVICE (self), "Embedded Controller");
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fu_device_add_icon (FU_DEVICE (self), "computer");
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}
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static void
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fu_superio_device_finalize (GObject *object)
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{
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G_OBJECT_CLASS (fu_superio_device_parent_class)->finalize (object);
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}
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static void
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fu_superio_device_class_init (FuSuperioDeviceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GParamSpec *pspec;
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FuDeviceClass *klass_device = FU_DEVICE_CLASS (klass);
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/* properties */
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object_class->get_property = fu_superio_device_get_property;
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object_class->set_property = fu_superio_device_set_property;
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pspec = g_param_spec_string ("chipset", NULL, NULL, NULL,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_NAME);
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g_object_class_install_property (object_class, PROP_CHIPSET, pspec);
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pspec = g_param_spec_uint ("port", NULL, NULL,
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0, G_MAXUINT, 0,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_NAME);
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g_object_class_install_property (object_class, PROP_PORT, pspec);
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pspec = g_param_spec_uint ("id", NULL, NULL,
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0, G_MAXUINT, 0,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_NAME);
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g_object_class_install_property (object_class, PROP_ID, pspec);
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object_class->finalize = fu_superio_device_finalize;
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klass_device->to_string = fu_superio_device_to_string;
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klass_device->probe = fu_superio_device_probe;
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klass_device->setup = fu_superio_device_setup;
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klass_device->prepare_firmware = fu_superio_device_prepare_firmware;
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}
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