drivers/nubus/proc.c

1 // SPDX-License-Identifier: GPL-2.0
2 /* drivers/nubus/proc.c: Proc FS interface for NuBus.
4    By David Huggins-Daines <dhd@debian.org>
6    Much code and many ideas from drivers/pci/proc.c:
11    structure in /proc analogous to the structure of the NuBus ROM
16    resources are empty files, since every resource ID requires a special
17    case (e.g. if the resource ID implies a directory or block, then its
33  * /proc/bus/nubus/devices stuff
43 			   fres->board->slot, fres->category, fres->type,  in nubus_devices_proc_show()
44 			   fres->dr_sw, fres->dr_hw, fres->board->slot_addr);  in nubus_devices_proc_show()
51  * /proc/bus/nubus/x/ stuff
60 	snprintf(name, sizeof(name), "%x", board->slot);  in nubus_proc_add_board()
64 /* The PDE private data for any directory under /proc/bus/nubus/x/
73 	int lanes = board->lanes;  in nubus_proc_add_rsrc_dir()
77 	snprintf(name, sizeof(name), "%x", ent->type);  in nubus_proc_add_rsrc_dir()
81 /* The PDE private data for a file under /proc/bus/nubus/x/ is a pointer to
102 	pde_data->res_ptr = ptr;  in nubus_proc_alloc_pde_data()
103 	pde_data->res_size = size;  in nubus_proc_alloc_pde_data()
109 	struct inode *inode = m->private;  in nubus_proc_rsrc_show()
116 	if (pde_data->res_size > m->size)  in nubus_proc_rsrc_show()
117 		return -EFBIG;  in nubus_proc_rsrc_show()
119 	if (pde_data->res_size) {  in nubus_proc_rsrc_show()
127 		ent.base = pde_data->res_ptr;  in nubus_proc_rsrc_show()
129 		nubus_seq_write_rsrc_mem(m, &ent, pde_data->res_size);  in nubus_proc_rsrc_show()
131 		unsigned int data = (unsigned int)pde_data->res_ptr;  in nubus_proc_rsrc_show()
150 	snprintf(name, sizeof(name), "%x", ent->type);  in nubus_proc_add_rsrc_mem()
163 	unsigned char *data = (unsigned char *)ent->data;  in nubus_proc_add_rsrc()
168 	snprintf(name, sizeof(name), "%x", ent->type);  in nubus_proc_add_rsrc()
175  * /proc/nubus stuff