172 lines
4.4 KiB
C
172 lines
4.4 KiB
C
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/* cm206.h Header file for cm206.c.
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Copyright (c) 1995 David van Leeuwen
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*/
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#ifndef LINUX_CM206_H
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#define LINUX_CM206_H
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#include <linux/ioctl.h>
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/* First, the cm260 stuff */
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/* The ports and irq used. Although CM206_BASE and CM206_IRQ are defined
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below, the values are not used unless autoprobing is turned off and
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no LILO boot options or module command line options are given. Change
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these values to your own as last resort if autoprobing and options
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don't work. */
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#define CM206_BASE 0x340
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#define CM206_IRQ 11
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#define r_data_status (cm206_base)
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#define r_uart_receive (cm206_base+0x2)
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#define r_fifo_output_buffer (cm206_base+0x4)
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#define r_line_status (cm206_base+0x6)
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#define r_data_control (cm206_base+0x8)
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#define r_uart_transmit (cm206_base+0xa)
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#define r_test_clock (cm206_base+0xc)
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#define r_test_control (cm206_base+0xe)
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/* the data_status flags */
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#define ds_ram_size 0x4000
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#define ds_toc_ready 0x2000
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#define ds_fifo_empty 0x1000
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#define ds_sync_error 0x800
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#define ds_crc_error 0x400
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#define ds_data_error 0x200
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#define ds_fifo_overflow 0x100
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#define ds_data_ready 0x80
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/* the line_status flags */
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#define ls_attention 0x10
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#define ls_parity_error 0x8
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#define ls_overrun 0x4
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#define ls_receive_buffer_full 0x2
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#define ls_transmitter_buffer_empty 0x1
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/* the data control register flags */
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#define dc_read_q_channel 0x4000
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#define dc_mask_sync_error 0x2000
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#define dc_toc_enable 0x1000
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#define dc_no_stop_on_error 0x800
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#define dc_break 0x400
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#define dc_initialize 0x200
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#define dc_mask_transmit_ready 0x100
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#define dc_flag_enable 0x80
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/* Define the default data control register flags here */
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#define dc_normal (dc_mask_sync_error | dc_no_stop_on_error | \
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dc_mask_transmit_ready)
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/* now some constants related to the cm206 */
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/* another drive status byte, echoed by the cm206 on most commands */
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#define dsb_error_condition 0x1
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#define dsb_play_in_progress 0x4
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#define dsb_possible_media_change 0x8
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#define dsb_disc_present 0x10
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#define dsb_drive_not_ready 0x20
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#define dsb_tray_locked 0x40
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#define dsb_tray_not_closed 0x80
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#define dsb_not_useful (dsb_drive_not_ready | dsb_tray_not_closed)
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/* the cm206 command set */
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#define c_close_tray 0
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#define c_lock_tray 0x01
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#define c_unlock_tray 0x04
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#define c_open_tray 0x05
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#define c_seek 0x10
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#define c_read_data 0x20
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#define c_force_1x 0x21
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#define c_force_2x 0x22
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#define c_auto_mode 0x23
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#define c_play 0x30
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#define c_set_audio_mode 0x31
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#define c_read_current_q 0x41
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#define c_stream_q 0x42
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#define c_drive_status 0x50
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#define c_disc_status 0x51
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#define c_audio_status 0x52
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#define c_drive_configuration 0x53
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#define c_read_upc 0x60
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#define c_stop 0x70
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#define c_calc_checksum 0xe5
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#define c_gimme 0xf8
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/* finally, the (error) condition that the drive can be in *
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* OK, this is not always an error, but let's prefix it with e_ */
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#define e_none 0
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#define e_illegal_command 0x01
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#define e_sync 0x02
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#define e_seek 0x03
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#define e_parity 0x04
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#define e_focus 0x05
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#define e_header_sync 0x06
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#define e_code_incompatibility 0x07
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#define e_reset_done 0x08
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#define e_bad_parameter 0x09
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#define e_radial 0x0a
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#define e_sub_code 0x0b
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#define e_no_data_track 0x0c
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#define e_scan 0x0d
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#define e_tray_open 0x0f
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#define e_no_disc 0x10
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#define e_tray stalled 0x11
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/* drive configuration masks */
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#define dcf_revision_code 0x7
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#define dcf_transfer_rate 0x60
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#define dcf_motorized_tray 0x80
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/* disc status byte */
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#define cds_multi_session 0x2
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#define cds_all_audio 0x8
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#define cds_xa_mode 0xf0
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/* finally some ioctls for the driver */
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#define CM206CTL_GET_STAT _IO( 0x20, 0 )
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#define CM206CTL_GET_LAST_STAT _IO( 0x20, 1 )
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#ifdef STATISTICS
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/* This is an ugly way to guarantee that the names of the statistics
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* are the same in the code and in the diagnostics program. */
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#ifdef __KERNEL__
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#define x(a) st_ ## a
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#define y enum
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#else
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#define x(a) #a
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#define y char * stats_name[] =
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#endif
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y {x(interrupt), x(data_ready), x(fifo_overflow), x(data_error),
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x(crc_error), x(sync_error), x(lost_intr), x(echo),
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x(write_timeout), x(receive_timeout), x(read_timeout),
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x(dsb_timeout), x(stop_0xff), x(back_read_timeout),
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x(sector_transferred), x(read_restarted), x(read_background),
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x(bh), x(open), x(ioctl_multisession), x(attention)
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#ifdef __KERNEL__
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, x(last_entry)
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#endif
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};
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#ifdef __KERNEL__
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#define NR_STATS st_last_entry
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#else
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#define NR_STATS (sizeof(stats_name)/sizeof(char*))
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#endif
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#undef y
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#undef x
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#endif /* STATISTICS */
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#endif /* LINUX_CM206_H */
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