141 lines
4.8 KiB
C
141 lines
4.8 KiB
C
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/*
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*
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* BRIEF MODULE DESCRIPTION
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* IT8172 Consumer IR port defines.
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*
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* Copyright 2001 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* ppopov@mvista.com or source@mvista.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define NUM_CIR_PORTS 2
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/* Master Control Register */
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#define CIR_RESET 0x1
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#define CIR_FIFO_CLEAR 0x2
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#define CIR_SET_FIFO_TL(x) (((x)&0x3)<<2)
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#define CIR_ILE 0x10
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#define CIR_ILSEL 0x20
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/* Interrupt Enable Register */
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#define CIR_TLDLIE 0x1
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#define CIR_RDAIE 0x2
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#define CIR_RFOIE 0x4
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#define CIR_IEC 0x80
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/* Interrupt Identification Register */
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#define CIR_TLDLI 0x1
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#define CIR_RDAI 0x2
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#define CIR_RFOI 0x4
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#define CIR_NIP 0x80
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/* Carrier Frequency Register */
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#define CIR_SET_CF(x) ((x)&0x1f)
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#define CFQ_38_480 0xB /* 38 KHz low, 480 KHz high */
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#define CIR_HCFS 0x20
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#define CIR_SET_HS(x) (((x)&0x1)<<5)
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/* Receiver Control Register */
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#define CIR_SET_RXDCR(x) ((x)&0x7)
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#define CIR_RXACT 0x8
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#define CIR_RXEND 0x10
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#define CIR_RDWOS 0x20
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#define CIR_SET_RDWOS(x) (((x)&0x1)<<5)
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#define CIR_RXEN 0x80
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/* Transmitter Control Register */
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#define CIR_SET_TXMPW(x) ((x)&0x7)
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#define CIR_SET_TXMPM(x) (((x)&0x3)<<3)
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#define CIR_TXENDF 0x20
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#define CIR_TXRLE 0x40
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/* Receiver FIFO Status Register */
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#define CIR_RXFBC_MASK 0x3f
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#define CIR_RXFTO 0x80
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/* Wakeup Code Length Register */
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#define CIR_SET_WCL ((x)&0x3f)
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#define CIR_WCL_MASK(x) ((x)&0x3f)
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/* Wakeup Power Control/Status Register */
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#define CIR_BTMON 0x2
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#define CIR_CIRON 0x4
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#define CIR_RCRST 0x10
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#define CIR_WCRST 0x20
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struct cir_port {
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int port;
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unsigned short baud_rate;
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unsigned char fifo_tl;
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unsigned char cfq;
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unsigned char hcfs;
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unsigned char rdwos;
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unsigned char rxdcr;
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};
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struct it8172_cir_regs {
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unsigned char dr; /* data */
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char pad;
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unsigned char mstcr; /* master control */
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char pad1;
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unsigned char ier; /* interrupt enable */
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char pad2;
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unsigned char iir; /* interrupt identification */
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char pad3;
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unsigned char cfr; /* carrier frequency */
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char pad4;
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unsigned char rcr; /* receiver control */
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char pad5;
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unsigned char tcr; /* transmitter control */
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char pad6;
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char pad7;
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char pad8;
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unsigned char bdlr; /* baud rate divisor low byte */
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char pad9;
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unsigned char bdhr; /* baud rate divisor high byte */
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char pad10;
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unsigned char tfsr; /* tx fifo byte count */
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char pad11;
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unsigned char rfsr; /* rx fifo status */
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char pad12;
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unsigned char wcl; /* wakeup code length */
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char pad13;
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unsigned char wcr; /* wakeup code read/write */
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char pad14;
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unsigned char wps; /* wakeup power control/status */
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};
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int cir_port_init(struct cir_port *cir);
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extern void clear_fifo(struct cir_port *cir);
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extern void enable_receiver(struct cir_port *cir);
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extern void disable_receiver(struct cir_port *cir);
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extern void enable_rx_demodulation(struct cir_port *cir);
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extern void disable_rx_demodulation(struct cir_port *cir);
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extern void set_rx_active(struct cir_port *cir);
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extern void int_enable(struct cir_port *cir);
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extern void rx_int_enable(struct cir_port *cir);
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extern char get_int_status(struct cir_port *cir);
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extern int cir_get_rx_count(struct cir_port *cir);
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extern char cir_read_data(struct cir_port *cir);
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