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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [char/] [sysrq.c] - Rev 1626
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/*****************************************************************************/ /* * linux/drivers/char/sysrq.c * * Copyright (C) 1999, Greg Ungerer (gerg@moreton.com.au) * * Process System Request Magic Keys. Used for debugging... */ /*****************************************************************************/ /* * Key that marks start of magic key sequence. * Default is CTRL-X. When using magic system request key mode, * any of these characters will disappear from the data stream. * So choose carefully! */ int magic_sysrq_master = 24; /* * Mode we are in. Is next char expected to be a command. */ int magic_sysrq_mode = 0; /*****************************************************************************/ int magic_sysrq_key(int ch) { if (magic_sysrq_mode == 0) { if (ch == magic_sysrq_master) { magic_sysrq_mode++; return(1); } return(0); } switch (ch) { case 'a': printk("Show Free Areas:\n"); show_free_areas(); break; case 'b': printk("Show Buffers:\n"); show_buffers(); break; #if 0 case 'r': printk("Show Registers:\n"); if (pt_regs) show_regs(pt_regs); break; #endif case 't': printk("Show State:\n"); show_state(); break; case 'm': printk("Show Memory:\n"); show_mem(); break; case 'n': printk("Show Net Buffers:\n"); show_net_buffers(); break; default: /* Unkown command?? */ break; } magic_sysrq_mode = 0; return(1); } /*****************************************************************************/
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