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