debug.c (1534069491c67619bfaeb25368a1249b669503c3) debug.c (9bff0bc4012c7f079b297eb45b47780e3713f367)
1/*
2 * Copyright (c) 2008-2009 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

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789}
790
791static const struct file_operations fops_recv = {
792 .read = read_file_recv,
793 .open = ath9k_debugfs_open,
794 .owner = THIS_MODULE
795};
796
1/*
2 * Copyright (c) 2008-2009 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

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789}
790
791static const struct file_operations fops_recv = {
792 .read = read_file_recv,
793 .open = ath9k_debugfs_open,
794 .owner = THIS_MODULE
795};
796
797static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
798 size_t count, loff_t *ppos)
799{
800 struct ath_softc *sc = file->private_data;
801 char buf[32];
802 unsigned int len;
803
804 len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
805 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
806}
807
808static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
809 size_t count, loff_t *ppos)
810{
811 struct ath_softc *sc = file->private_data;
812 unsigned long regidx;
813 char buf[32];
814 ssize_t len;
815
816 len = min(count, sizeof(buf) - 1);
817 if (copy_from_user(buf, user_buf, len))
818 return -EINVAL;
819
820 buf[len] = '\0';
821 if (strict_strtoul(buf, 0, &regidx))
822 return -EINVAL;
823
824 sc->debug.regidx = regidx;
825 return count;
826}
827
828static const struct file_operations fops_regidx = {
829 .read = read_file_regidx,
830 .write = write_file_regidx,
831 .open = ath9k_debugfs_open,
832 .owner = THIS_MODULE
833};
834
835static ssize_t read_file_regval(struct file *file, char __user *user_buf,
836 size_t count, loff_t *ppos)
837{
838 struct ath_softc *sc = file->private_data;
839 struct ath_hw *ah = sc->sc_ah;
840 char buf[32];
841 unsigned int len;
842 u32 regval;
843
844 regval = REG_READ_D(ah, sc->debug.regidx);
845 len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
846 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
847}
848
849static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
850 size_t count, loff_t *ppos)
851{
852 struct ath_softc *sc = file->private_data;
853 struct ath_hw *ah = sc->sc_ah;
854 unsigned long regval;
855 char buf[32];
856 ssize_t len;
857
858 len = min(count, sizeof(buf) - 1);
859 if (copy_from_user(buf, user_buf, len))
860 return -EINVAL;
861
862 buf[len] = '\0';
863 if (strict_strtoul(buf, 0, &regval))
864 return -EINVAL;
865
866 REG_WRITE_D(ah, sc->debug.regidx, regval);
867 return count;
868}
869
870static const struct file_operations fops_regval = {
871 .read = read_file_regval,
872 .write = write_file_regval,
873 .open = ath9k_debugfs_open,
874 .owner = THIS_MODULE
875};
876
797int ath9k_init_debug(struct ath_hw *ah)
798{
799 struct ath_common *common = ath9k_hw_common(ah);
800 struct ath_softc *sc = (struct ath_softc *) common->priv;
801
802 if (!ath9k_debugfs_root)
803 return -ENOENT;
804

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840 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
841 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
842 goto err;
843
844 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
845 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
846 goto err;
847
877int ath9k_init_debug(struct ath_hw *ah)
878{
879 struct ath_common *common = ath9k_hw_common(ah);
880 struct ath_softc *sc = (struct ath_softc *) common->priv;
881
882 if (!ath9k_debugfs_root)
883 return -ENOENT;
884

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920 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
921 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
922 goto err;
923
924 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
925 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
926 goto err;
927
928 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
929 sc->debug.debugfs_phy, sc, &fops_regidx))
930 goto err;
931
932 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
933 sc->debug.debugfs_phy, sc, &fops_regval))
934 goto err;
935
936 sc->debug.regidx = 0;
848 return 0;
849err:
850 ath9k_exit_debug(ah);
851 return -ENOMEM;
852}
853
854void ath9k_exit_debug(struct ath_hw *ah)
855{

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938err:
939 ath9k_exit_debug(ah);
940 return -ENOMEM;
941}
942
943void ath9k_exit_debug(struct ath_hw *ah)
944{

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