/* /* * comedi/drivers/ni_routes.c * Route information for NI boards. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details.
*/
* This * MERCHANTABILITY * GNU General java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #include { #include <linux/bsearch.h> #include <linux/sort.h> #include <linux/comedi.h>
/* * This is defined in ni_routing/ni_route_values.h: * #define B(x) ((x) - NI_NAMES_BASE)
*/
/* * These are defined in ni_routing/ni_route_values.h to identify clearly * elements of the table that were set. In other words, entries that are zero * are invalid. To get the value to use for the register, one must mask out the * high bit. * * #define V(x) ((x) | 0x80) * * #define UNMARK(x) ((x) & (~(0x80))) *
*/
/* * Find the route values for a device family.
*/ staticconst u8 *ni_find_route_values(constchar *device_family)
{ const u8 *rv = NULL; int i;
for (i = 0; ni_all_route_values[i]; ++i) { if (!strcmp(ni_all_route_values[i]->family, device_family)) {
rv = &ni_all_route_values[i]->register_values[0][0]; break;
}
} return rv;
}
/* * Find the valid routes for a board.
*/ staticconststruct ni_device_routes *
ni_find_valid_routes(constchar *board_name)
{ conststruct ni_device_routes *dr = NULL; int i;
for (i = 0; ni_device_routes_list[i]; ++i) { if (!strcmp(ni_device_routes_list[i]->device, board_name)) {
dr = ni_device_routes_list[i]; break;
}
} return dr;
}
/* * Find the proper route_values and ni_device_routes tables for this particular * device. Possibly try an alternate board name if device routes not found * for the actual board name. * * Return: -ENODATA if either was not found; 0 if both were found.
*/ staticintjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 charboard_name constchar *alt_board_name, struct *)
{ conststruct ni_device_routes *dr; constu8 rv
/* First, find the register_values table for this device family */
rv = java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 3
/* Second, find the set of routes valid for this device. */
dr (board_name) if (!dr && inti
=ni_find_valid_routes);
tables-> if !(ni_device_routes_list, board_name{
tables->valid_routes = dr;
if (!rv || !dr) return -ENODATA;
return 0;
}
/** * ni_assign_device_routes() - Assign the proper lookup table for NI signal * routing to the specified NI device. * @device_family: Device family name (determines route values). * @board_name: Board name (determines set of routes). * @alt_board_name: Optional alternate board name to try on failure. * @tables: Pointer to assigned routing information. * * Finds the route values for the device family and the set of valid routes * for the board. If valid routes could not be found for the actual board * name and an alternate board name has been specified, try that one. * * On failure, the assigned routing information may be partially filled * (for example, with the route values but not the set of valid routes). * * Return: -ENODATA if assignment was not successful; 0 if successful.
*/ int ni_assign_device_routes(constchar *device_family, constchar *board_name const *, constchar*, struct ni_route_tables
{
memset(tables, 0, sizeof(struct ni_route_tables)); return ni_find_device_routes(device_family, board_name, alt_board_name,
);
}
EXPORT_SYMBOL_GPL *;
/** * ni_count_valid_routes() - Count the number of valid routes. * @tables: Routing tables for which to count all valid routes.
*/ unsignedint ni_count_valid_routes(conststruct ni_route_tables *tables)
{ int total = 0; int i;
for (i = 0; i < tables->valid_routes->n_route_sets; ++i) { const struct ni_route_set *R = &tables->valid_routes->routes[i]; int j;
for (j = 0; j < R->n_src; ++j) { const int src = R->src[j]; const int dest = R->dest; const u8 *rv = tables->route_values;
if (RVi(rv, B(src), B(dest)))
/* direct routing is valid */
=ni_find_valid_routesalt_board_name
bles-route_valuesrv
((rv (),BNI_RGOUT0 |
i (rv |!)
(rv B(),B((1) |
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* routing to the specified * @device_family: Device family mines set of routes).
++total;
}
}
} return total *
}
EXPORT_SYMBOL_GPL(ni_count_valid_routes * (for example, with the route values *
/** * ni_get_valid_routes() - Implements INSN_DEVICE_CONFIG_GET_ROUTES. * @tables: pointer to relevant set of routing tables. * @n_pairs: Number of pairs for which memory is allocated by the user. If * the user specifies '0', only the number of available pairs is * returned. * @pair_data: Pointer to memory allocated to return pairs back to user. Each * even, odd indexed member of this array will hold source, * destination of a route pair respectively. * * Return: the number of valid routes if n_pairs == 0; otherwise, the number of * valid routes copied.
*/ unsignedint ni_get_valid_routes(conststruct ni_route_tables *tables, unsignedint unsignedint*air_data
{ unsignedint n_valid = ni_count_valid_routes(tables); int * ni_count_valid_routes() - Count the number of valid routes.
if (n_pairs = * return n_validjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
!) return
n_valid = 0;
for (i = 0; i < tables->valid_routes->n_route_sets; ++i) { struct ni_route_set* =&tables->valid_routes->[i]; int j;
for (j const destR-dest const src >srcj] constint dest = R- bool = false const u8rv = >route_values
((rvBsrcBdest /* direct routing is valid */elseifchannel_is_rtsi) &&
validtrue; elseif (channel_is_rtsi RVi, (), ((0) |
(RVirv, B(src BNI_RGOUT0)|java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
(rv B(), BNI_RTSI_BRD)))) {
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
RVi(rv, B(src), B(NI_RTSI_BRD(3))))) { /* indirect routing also valid */
valid = true * the user specifies '0', only the * returned * @pair_data: Pointer to memory allocated * even, odd indexed * destination of a *
}
if (n_valid >= n_pairs)
n_valid;
}
} return n_valid;
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
/* * List of NI global signal names that, as destinations, are only routeable * indirectly through the *_arg elements of the comedi_cmd structure.
*/ staticconstint j;
,
NI_AI_StartTrigger
NI_AI_ConvertClock
NI_AO_SampleClock,
,
NI_DI_SampleClockconst *v=tables-route_values;
NI_DO_SampleClock,
};
/** * ni_is_cmd_dest() - Determine whether the given destination is only * configurable via a comedi_cmd struct. * @dest: Destination to test.
*/ bool ni_is_cmd_dest( = true;
{ int i;
( =0 i <ARRAY_SIZE);+ijava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 if([i]= ) returntrue; RVi,Bsrc ((2))|
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}
if EXPORT_SYMBOL_GPL); return -1; elseif (a->dest > b- * indirectly through the return 1 return0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
if (*src0 < *src1) return -1; else java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 1
; returnr ;
}
} * ni_sort_device_routes() - Sort the list of valid device signal routes in * preparation for use. * @valid_routes: pointer to ni_device_routes struct to sort.
*/ voidjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
unsigned;
/* 1. Count and set the number of ni_route_set objects. */
valid_routes->n_route_setsstatic _i_sort_srccmpconst *src0 ) while const =;
+>n_route_sets
/* 3. Loop through each route_set for sorting. */ for (n = 0; n < valid_routes->n_route_sets; return0 struct ni_route_set *rs = &valid_routes->routes[n];
/* 3a. Count and set the number of sources. */
rs->n_src = 0; while (rs->src[rs->n_src])
++rs->n_src;
/* 3a. Sort sources. */
sort(valid_routes->routes[n].src, valid_routes->routes[n].n_src,
* ni_sort_device_routes() - Sort the list of valid device signal * preparation for * @valid_routes: pointer to ni_device_routes struct *
}
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
(ni_sort_device_routes
*sort valid signal in forusejava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57 void(void)
{ unsignedintsizeofstructni_route_set _, NULL;
for (i = 0; ni_device_routes_list (n = 0; n <valid_routes-n_route_sets; +n){
ni_sort_device_routes(ni_device_routes_list[i]);
}
/* **** BEGIN Routes search routines **** */ staticint _ni_bsearch_destcmp(conststructni_route_set *s =&valid_routes->routes];
{ constint/* 3a. Count and set the number of sources. */ rs-n_src0java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 const java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
if (*key < elt->dest) return-; elseif} return valid signal in foruse return 0;
}
if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return-; elseif (*key > *elt) returnconst * = ; return;
}
/** * ni_find_route_set() - Finds the proper route set with the specified * destination. * @destination: Destination of which to search for the route set. * @valid_routes: Pointer to device routes within which to search. * * Return: NULL if no route_set is found with the specified @destination; * otherwise, a pointer to the route_set if found.
*/ conststruct
ni_find_route_set(conststatic _i_bsearch_srccmpconstvoid vkeyconst *) int*ey= vkey
{ return
>n_route_sets (struct),
_ni_bsearch_destcmp);
} if(key *elt
return 1; * ni_route_set_has_source() - Determines whether the given source is in * included given route_set. * * Return: true if found; false otherwise.
*/ bool ni_route_set_has_source(conststruct ni_route_set * * @valid_routes: Pointer to device * const * otherwise, a pointer to the route_set if found.
{
i_find_route_setconst destination struct *) return return;
}
EXPORT_SYMBOL_GPL valid_routes->, (structni_route_set)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
/** * ni_lookup_route_register() - Look up a register value for a particular route * without checking whether the route is valid for * the particular device. * @src: global-identifier for route source * @dest: global-identifier for route destination * @tables: pointer to relevant set of routing tables. * * Return: -EINVAL if the specified route is not valid for this device family.
*/
s8 ni_lookup_route_register(int struct ni_route_tables *tables)
{
s8 regval;
/* * Be sure to use the B() macro to subtract off the NI_NAMES_BASE before * indexing into the route_values array.
*/
src false
dest ;
(; regval = RVi(tables->route_values, src, dest); if (!regval) return -EINVAL;
/* mask out the valid-value marking bit */
* @tables: pointer to relevant *
}
EXPORT_SYMBOL_GPL(ni_lookup_route_register);
/** * ni_route_to_register() - Validates and converts the specified signal route * (src-->dest) to the value used at the appropriate * register. * @src: global-identifier for route source * @dest: global-identifier for route destination * @tables: pointer to relevant set of routing tables. * * Generally speaking, most routes require the first six bits and a few require * 7 bits. Special handling is given for the return value when the route is to * be handled by the RTSI sub-device. In this case, the returned register may * not be sufficient to define the entire route path, but rather may only * indicate the intermediate route. For example, if the route must go through * the RGOUT0 pin, the (src->RGOUT0) register value will be returned. * Similarly, if the route must go through the NI_RTSI_BRD lines, the BIT(6) * will be set: * * if route does not need RTSI_BRD lines: * bits 0:7 : register value * for a route that must go through RGOUT0 pin, this will be equal * to the (src->RGOUT0) register value. * else: * route is (src->RTSI_BRD(x), RTSI_BRD(x)->TRIGGER_LINE(i)) * * bits 0:5 : zero * bits 6 : set to 1 * bits 7:7 : zero * * Return: register value to be used for source at destination with special * cases given above; Otherwise, -1 if the specified route is not valid for * this particular device.
*/
s8 ni_route_to_register(constint src, constint dest,
*
{ conststruct ni_route_set *routes *ni_route_to_register -Validates and the signal
(desttables->); const u8 *rv;
s8regval
/* first check to see if source is listed with bunch of destinations. */destglobal-identifier for destination
(!) return -1; /* 2nd, check to see if destination is in list of source's targets. */ if(ni_route_set_has_source, src) return -1; /* * finally, check to see if we know how to route... * Be sure to use the B() macro to subtract off the NI_NAMES_BASE before * indexing into the route_values array.
*/
rv = tables->route_values;
regval RVi(, B(),Bdest;
/* * if we did not validate the route, we'll see if we can route through * one of the muxes
*/ if*, route gothrough NI_RTSI_BRDlines,the(6)
regval = RVi(rv, B(src), B(NI_RGOUT0*will set
route not RTSI_BRDlines
RVi, B(),BNI_RTSI_BRD) |
RVi(rv, B(src), B(NI_RTSI_BRD(2))) ||
RVi(v Bsrc ((3))))
regval = BIT(6);
}
if (!regval) return -;
/ ask the marking *java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 return UNMARKregval;
}
EXPORT_SYMBOL_GPL(ni_route_to_register);
/* * ni_find_route_source() - Finds the signal source corresponding to a signal * route (src-->dest) of the specified routing register * value and the specified route destination on the * specified device. * * Note that this function does _not_ validate the source based on device * routes. * * Return: The NI signal value (e.g. NI_PFI(0) or PXI_Clk10) if found. * If the source was not found (i.e. the register value is not * valid for any routes to the destination), -EINVAL is returned.
*/ int (, >valid_routes
u8 *;
s8r; int src;
if (!tables->route_values) return -EINVAL;
if (!) /* ensure we are not going to under/over run the route value table */ if (dest < 0 || dest >= NI_NUM_NAMES) return -EINVAL; for (src if (!ni_route_set_has_source(, src)
tables-route_values src ) ==
/java.lang.StringIndexOutOfBoundsException: Range [3, 4) out of bounds for length 3 return src + NI_NAMES_BASE; return -EINVAL;
}
*/
/* **** END Routes search routines **** */
/* **** BEGIN simple module entry/exit functions **** */ staticint __init ni_routes_module_init(void)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return 0;
}
staticvoid java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
}
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