IRIX Base Documentation 2001 May/SGI IRIX Base Documentation 2001 May.iso/usr/relnotes/divo/ch3.z/ch3

Text File | 2001-04-17 | 16KB | 265 lines

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       3.  _C_o_n_f_i_g_u_r_a_t_i_o_n__I_n_f_o_r_m_a_t_i_o_n



       3.1  _D_e_v_i_c_e__n_u_m_b_e_r_i_n_g


       Multiple DIVO and/or DIVO-DVC boards may be installed in one
       system. Each DIVO/DIVO-DVC board is assigned a device name
       and number by the video daemon (videod), a part of the SGI
       Video Library (VL).  These names are visible under the
       "Device" menu in the _v_i_d_e_o_p_a_n_e_l (a.k.a. _v_c_p) utility. Also,
       the names and corresponding numbers are displayed by running
       the _v_l_i_n_f_o command-line utility.  For example, if a system
       has three DIVO boards and one DIVO-DVC board, they are named
       DIVO_1, DIVO_2, DIVO_3, and DIVO_DVC_4.  They may be
       numbered 0, 1, 2, and 3, respectively. These latter numbers
       correspond to the indices of the VLDevList array returned by
       the _v_l_G_e_t_D_e_v_i_c_e_L_i_s_t(_3) Video Library function.  However, if
       another type of video card besides DIVO and DIVO-DVC is
       installed in the same system, the mapping between name and
       number may change, because the other board would be
       allocated some numbers.

       The numbering of Audio Library devices matches the VL name
       (e.g., DIVO_1 in AL is the same board as DIVO_1 in VL.)  The
       system administrator has control over the assignment of VL
       device names of the DIVO/DIVO-DVC boards in the system, but
       little control over the VL device number.  Device number
       assignment occurs in two phases: first, DIVO board numbers
       are initially assigned by the _i_o_c_o_n_f_i_g(_1) IRIX utility,
       which takes into account the module and slot into which the
       DIVO/DIVO-DVC boards are installed.  By editing
       /_e_t_c/_i_o_c_o_n_f_i_g._c_o_n_f, this assignment can be modified.
       Second, the VL sorts the ioconfig numbers and assigns VL
       device numbers in ascending, consecutive order (this second
       phase is necessary because the VL and many VL programs were
       written assuming VL devices are numbered consecutively
       starting from zero.  Numbers assigned by _i_o_c_o_n_f_i_g are not
       necessarily so.)  The device name assigned by VL is "DIVO_n"
       or "DIVO_DVC_n", where "n" is the IRIX unit number assigned
       by ioconfig.


       3.2  _H_a_r_d_w_a_r_e__i_n_v_e_n_t_o_r_y


       For each DIVO or DIVO-DVC installed, a line is displayed by
       _h_i_n_v(_1).  No distinction between a DIVO or DIVO-DVC is made
       here.  For example,












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       %%%% hhhhiiiinnnnvvvv
       DDDDIIIIVVVVOOOO VVVViiiiddddeeeeoooo:::: ccccoooonnnnttttrrrroooolllllllleeeerrrr 3333 uuuunnnniiiitttt 3333 ssssttttaaaatttteeee 0000
       DDDDIIIIVVVVOOOO VVVViiiiddddeeeeoooo:::: ccccoooonnnnttttrrrroooolllllllleeeerrrr 1111 uuuunnnniiiitttt 1111 ssssttttaaaatttteeee 0000
       DDDDIIIIVVVVOOOO VVVViiiiddddeeeeoooo:::: ccccoooonnnnttttrrrroooolllllllleeeerrrr 2222 uuuunnnniiiitttt 2222 ssssttttaaaatttteeee 0000
       DDDDIIIIVVVVOOOO VVVViiiiddddeeeeoooo:::: ccccoooonnnnttttrrrroooolllllllleeeerrrr 0000 uuuunnnniiiitttt 0000 ssssttttaaaatttteeee 0000

       The ccccoooonnnnttttrrrroooolllllllleeeerrrr number is the number assigned by _i_o_c_o_n_f_i_g(_1)
       utility and referenced in the /_e_t_c/_i_o_c_o_n_f_i_g._c_o_n_f database.
       The uuuunnnniiiitttt number is the VL device number assigned by videod.
       Note that _u_n_i_t will be zero for all DIVO/DIVO-DVC boards
       until videod runs for the first time.  Note also that the
       DIVO or DIVO-DVC software must be installed and running for
       _h_i_n_v to display anything about DIVO or DIVO-DVC.  The serial
       numbers of all DIVO/DIVO-DVC boards (and other boards) in
       the system, along with their physical location (by module
       number and I/O slot number) can be displayed (note that the
       first three devices are DIVO boards and the last device is a
       DIVO-DVC, which is a DIVO with two attached daughtercards
       named DVCPRO_CODEC):

       %%%% hhhhiiiinnnnvvvv ----mmmmvvvv
       LLLLooooccccaaaattttiiiioooonnnn:::: ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo2222////ddddiiiivvvvoooo
                   DDDDIIIIVVVVOOOO BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee DDDDPPPPWWWW000000002222     ppppaaaarrrrtttt 000033330000----1111000044446666----000000002222 rrrreeeevvvv  GGGG
       LLLLooooccccaaaattttiiiioooonnnn:::: ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo6666////ddddiiiivvvvoooo
                   DDDDIIIIVVVVOOOO BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee DDDDAAAARRRR000055556666     ppppaaaarrrrtttt 000033330000----1111000044446666----000000002222 rrrreeeevvvv  GGGG
       LLLLooooccccaaaattttiiiioooonnnn:::: ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo5555////ddddiiiivvvvoooo
                   DDDDIIIIVVVVOOOO BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee DDDDAAAARRRR000055559999     ppppaaaarrrrtttt 000033330000----1111000044446666----000000002222 rrrreeeevvvv  GGGG
       LLLLooooccccaaaattttiiiioooonnnn:::: ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo3333////ddddiiiivvvvoooo
           DDDDVVVVCCCCPPPPRRRROOOO____CCCCOOOODDDDEEEECCCC BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee FFFFXXXXXXXX111100005555     ppppaaaarrrrtttt 000033330000----1111333388888888----000000001111 rrrreeeevvvv  AAAA
                   DDDDIIIIVVVVOOOO BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee FFFFXXXXXXXX555566662222     ppppaaaarrrrtttt 000033330000----1111333388887777----000000001111 rrrreeeevvvv  AAAA
           DDDDVVVVCCCCPPPPRRRROOOO____CCCCOOOODDDDEEEECCCC BBBBooooaaaarrrrdddd:::: bbbbaaaarrrrccccooooddddeeee FFFFXXXXXXXX000077770000     ppppaaaarrrrtttt 000033330000----1111333388888888----000000001111 rrrreeeevvvv  AAAA

       A tool _d_i_v_o_h_i_n_v is included with the DIVO software that
       gathers this information and associates it with VL device
       number, for convenience:

       %%%% ////uuuussssrrrr////ddddmmmmeeeeddddiiiiaaaa////bbbbiiiinnnn////DDDDIIIIVVVVOOOO////ddddiiiivvvvoooohhhhiiiinnnnvvvv
       ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo2222////ddddiiiivvvvoooo
               DDDDIIIIVVVVOOOO ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111000044446666----000000002222 GGGG)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr DDDDPPPPWWWW000000002222
               VVVVLLLL ddddeeeevvvviiiicccceeee 3333 ((((nnnnaaaammmmeeee DDDDIIIIVVVVOOOO____3333)))),,,, AAAALLLL ssssuuuubbbbssssyyyysssstttteeeemmmm DDDDIIIIVVVVOOOO____3333
               IIIIRRRRIIIIXXXX nnnnuuuummmmbbbbeeeerrrr 3333
       ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo3333////ddddiiiivvvvoooo
               DDDDVVVVCCCCPPPPRRRROOOO____CCCCOOOODDDDEEEECCCC ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111333388888888----000000001111 AAAA)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr FFFFXXXXXXXX111100005555
               DDDDIIIIVVVVOOOO ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111333388887777----000000001111 AAAA)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr FFFFXXXXXXXX555566662222
               DDDDVVVVCCCCPPPPRRRROOOO____CCCCOOOODDDDEEEECCCC ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111333388888888----000000001111 AAAA)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr FFFFXXXXXXXX000077770000
               VVVVLLLL ddddeeeevvvviiiicccceeee 0000 ((((nnnnaaaammmmeeee DDDDIIIIVVVVOOOO____DDDDVVVVCCCC____0000)))),,,, AAAALLLL ssssuuuubbbbssssyyyysssstttteeeemmmm DDDDIIIIVVVVOOOO____DDDDVVVVCCCC____0000
               IIIIRRRRIIIIXXXX nnnnuuuummmmbbbbeeeerrrr 0000
       ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo5555////ddddiiiivvvvoooo
               DDDDIIIIVVVVOOOO ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111000044446666----000000002222 GGGG)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr DDDDAAAARRRR000055559999
               VVVVLLLL ddddeeeevvvviiiicccceeee 2222 ((((nnnnaaaammmmeeee DDDDIIIIVVVVOOOO____2222)))),,,, AAAALLLL ssssuuuubbbbssssyyyysssstttteeeemmmm DDDDIIIIVVVVOOOO____2222
               IIIIRRRRIIIIXXXX nnnnuuuummmmbbbbeeeerrrr 2222











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       ////hhhhwwww////mmmmoooodddduuuulllleeee////1111////ssssllllooootttt////iiiioooo6666////ddddiiiivvvvoooo
               DDDDIIIIVVVVOOOO ((((ppppaaaarrrrtttt nnnnuuuummmmbbbbeeeerrrr 000033330000----1111000044446666----000000002222 GGGG)))),,,, sssseeeerrrriiiiaaaallll nnnnuuuummmmbbbbeeeerrrr DDDDAAAARRRR000055556666
               VVVVLLLL ddddeeeevvvviiiicccceeee 1111 ((((nnnnaaaammmmeeee DDDDIIIIVVVVOOOO____1111)))),,,, AAAALLLL ssssuuuubbbbssssyyyysssstttteeeemmmm DDDDIIIIVVVVOOOO____1111
               IIIIRRRRIIIIXXXX nnnnuuuummmmbbbbeeeerrrr 1111
       %%%%

       3.3  _G_P_I__c_o_n_f_i_g_u_r_a_t_i_o_n


       The four GPI input receivers can each be configured into one
       of two modes (current sense or switch closure) via jumpers
       on the DIVO circuit board.  This configuration is the
       responsibility of the SGI System Engineer installing the
       board, and is explained in detail in the _D_I_V_O _I_n_s_t_a_l_l_a_t_i_o_n
       _G_u_i_d_e.  DIVO and DIVO-DVC boards are not customer-
       installable.


       3.4  _I_n_i_t_i_a_l_i_z_a_t_i_o_n


       The DIVO/DIVO-DVC Video subsystems are initialized by the
       video daemon, which is normally started at boot time If not
       started at boot time, the video daemon is started when the
       first program that uses the VL is executed.  The
       initialization process normally takes about 7-8 seconds per
       board.  The advantage to starting videod at boot time is
       that VL programs start much faster.  The disadvantages are
       that system boot-up time increases, and that videod starts
       and runs, consuming some CPU and memory resources, even
       before DIVO/DIVO-DVC is used.  To disable videod from
       automatically starting, use the IRIX utility _c_h_k_c_o_n_f_i_g(_1),
       as root, to turn the _v_i_d_e_o_d and _i_n_i_t_d_i_v_o flags off:

               cccchhhhkkkkccccoooonnnnffffiiiigggg vvvviiiiddddeeeeoooodddd ooooffffffff
               cccchhhhkkkkccccoooonnnnffffiiiigggg iiiinnnniiiittttddddiiiivvvvoooo ooooffffffff

       To reenable,

               cccchhhhkkkkccccoooonnnnffffiiiigggg iiiinnnniiiittttddddiiiivvvvoooo oooonnnn

       While initialization normally takes 7-8 seconds per
       DIVO/DIVO-DVC board, it can in some cases take much longer.
       If the DIVO/DIVO-DVC software is upgraded, a new DIVO or
       DIVO-DVC board is installed, or a DIVO/DIVO-DVC board is
       replaced, videod may have to "reflash" (reprogram) the
       firmware onto the board the first time videod runs after the
       upgrade.  This process takes about 45 seconds (for DIVO) to
       60 seconds (for DIVO-DVC) per board, during which VL
       programs appears to freeze.  Fortunately, this reflashing
       process occurs rarely.











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