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      1 /* $NetBSD: auvitek_board.c,v 1.3 2011/07/09 15:00:44 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2010 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * Auvitek AU0828 USB controller - board specific initialization
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: auvitek_board.c,v 1.3 2011/07/09 15:00:44 jmcneill Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/device.h>
     39 #include <sys/conf.h>
     40 #include <sys/bus.h>
     41 #include <sys/module.h>
     42 
     43 #include <dev/usb/usb.h>
     44 #include <dev/usb/usbdi.h>
     45 #include <dev/usb/usbdi_util.h>
     46 #include <dev/usb/usbdevs.h>
     47 
     48 #include <dev/usb/auvitekreg.h>
     49 #include <dev/usb/auvitekvar.h>
     50 
     51 static const struct auvitek_board_config {
     52 	uint16_t	reset;
     53 	uint16_t	enable;
     54 	uint8_t		clkdiv;
     55 } auvitek_board_config[] = {
     56 	[AUVITEK_BOARD_HVR_850] = {
     57 		.reset = 0x02b0,
     58 		.enable = 0x02f0,
     59 		.clkdiv = AU0828_I2C_CLKDIV_30,
     60 	},
     61 	[AUVITEK_BOARD_HVR_950Q] = {
     62 		.reset = 0x02b0,
     63 		.enable = 0x02f0,
     64 		.clkdiv = AU0828_I2C_CLKDIV_30,
     65 	},
     66 };
     67 
     68 void
     69 auvitek_board_init(struct auvitek_softc *sc)
     70 {
     71 	uint16_t reset, enable;
     72 
     73 	/* power up device */
     74 	auvitek_write_1(sc, AU0828_REG_POWER_CTL, AU0828_POWER_EN);
     75 
     76 	reset = auvitek_board_config[sc->sc_board].reset;
     77 	enable = auvitek_board_config[sc->sc_board].enable;
     78 
     79 	/* stash i2c clock divider in softc */
     80 	sc->sc_i2c_clkdiv = auvitek_board_config[sc->sc_board].clkdiv;
     81 
     82 	/* configure gpio, if requested */
     83 	if (reset) {
     84 		auvitek_write_1(sc, AU0828_REG_GPIO2_PINDIR, reset >> 8);
     85 		auvitek_write_1(sc, AU0828_REG_GPIO1_PINDIR, reset & 0xff);
     86 		auvitek_write_1(sc, AU0828_REG_GPIO2_OUTEN, 0);
     87 		auvitek_write_1(sc, AU0828_REG_GPIO1_OUTEN, 0);
     88 		delay(100000);
     89 	}
     90 	if (enable) {
     91 		auvitek_write_1(sc, AU0828_REG_GPIO2_PINDIR, enable >> 8);
     92 		auvitek_write_1(sc, AU0828_REG_GPIO1_PINDIR, enable & 0xff);
     93 		auvitek_write_1(sc, AU0828_REG_GPIO2_OUTEN, enable >> 8);
     94 		auvitek_write_1(sc, AU0828_REG_GPIO1_OUTEN, enable & 0xff);
     95 		delay(250000);
     96 	}
     97 }
     98 
     99 int
    100 auvitek_board_tuner_reset(void *priv)
    101 {
    102 	struct auvitek_softc *sc = priv;
    103 	uint8_t val;
    104 
    105 	switch (sc->sc_board) {
    106 	case AUVITEK_BOARD_HVR_850:
    107 	case AUVITEK_BOARD_HVR_950Q:
    108 		val = auvitek_read_1(sc, AU0828_REG_GPIO2_OUTEN);
    109 		val &= ~2;
    110 		auvitek_write_1(sc, AU0828_REG_GPIO2_OUTEN, val);
    111 		delay(10000);
    112 		val = auvitek_read_1(sc, AU0828_REG_GPIO2_OUTEN);
    113 		val |= 2;
    114 		auvitek_write_1(sc, AU0828_REG_GPIO2_OUTEN, val);
    115 		delay(10000);
    116 		break;
    117 	}
    118 
    119 	return 0;
    120 }
    121 
    122 unsigned int
    123 auvitek_board_get_if_frequency(struct auvitek_softc *sc)
    124 {
    125 	return 6000000;	/* 6MHz */
    126 }
    127