| Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * $Id$ |
| 4 | * |
| 5 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
| 6 | * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include "pvrusb2.h" |
| 24 | #include "pvrusb2-util.h" |
| 25 | #include "pvrusb2-demod.h" |
| 26 | #include "pvrusb2-hdw-internal.h" |
| 27 | #include "pvrusb2-debug.h" |
| 28 | #include <linux/videodev2.h> |
| 29 | #include <media/tuner.h> |
| 30 | #include <media/v4l2-common.h> |
| 31 | |
| 32 | |
| 33 | struct pvr2_demod_handler { |
| 34 | struct pvr2_hdw *hdw; |
| 35 | struct pvr2_i2c_client *client; |
| 36 | struct pvr2_i2c_handler i2c_handler; |
| 37 | int type_update_fl; |
| 38 | }; |
| 39 | |
| 40 | |
| 41 | static void set_config(struct pvr2_demod_handler *ctxt) |
| 42 | { |
| 43 | struct pvr2_hdw *hdw = ctxt->hdw; |
| 44 | int cfg = 0; |
| 45 | |
| 46 | switch (hdw->tuner_type) { |
| 47 | case TUNER_PHILIPS_FM1216ME_MK3: |
| 48 | case TUNER_PHILIPS_FM1236_MK3: |
| 49 | cfg = TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE; |
| 50 | break; |
| 51 | default: |
| 52 | break; |
| 53 | } |
| 54 | pvr2_trace(PVR2_TRACE_CHIPS,"i2c demod set_config(0x%x)",cfg); |
| 55 | pvr2_i2c_client_cmd(ctxt->client,TDA9887_SET_CONFIG,&cfg); |
| 56 | ctxt->type_update_fl = 0; |
| 57 | } |
| 58 | |
| 59 | |
| 60 | static int demod_check(struct pvr2_demod_handler *ctxt) |
| 61 | { |
| 62 | struct pvr2_hdw *hdw = ctxt->hdw; |
| 63 | if (hdw->tuner_updated) ctxt->type_update_fl = !0; |
| 64 | return ctxt->type_update_fl != 0; |
| 65 | } |
| 66 | |
| 67 | |
| 68 | static void demod_update(struct pvr2_demod_handler *ctxt) |
| 69 | { |
| 70 | if (ctxt->type_update_fl) set_config(ctxt); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | static void demod_detach(struct pvr2_demod_handler *ctxt) |
| 75 | { |
| 76 | ctxt->client->handler = 0; |
| 77 | kfree(ctxt); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | static unsigned int demod_describe(struct pvr2_demod_handler *ctxt,char *buf,unsigned int cnt) |
| 82 | { |
| 83 | return scnprintf(buf,cnt,"handler: pvrusb2-demod"); |
| 84 | } |
| 85 | |
| 86 | |
| 87 | const static struct pvr2_i2c_handler_functions tuner_funcs = { |
| 88 | .detach = (void (*)(void *))demod_detach, |
| 89 | .check = (int (*)(void *))demod_check, |
| 90 | .update = (void (*)(void *))demod_update, |
| 91 | .describe = (unsigned int (*)(void *,char *,unsigned int))demod_describe, |
| 92 | }; |
| 93 | |
| 94 | |
| 95 | int pvr2_i2c_demod_setup(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp) |
| 96 | { |
| 97 | struct pvr2_demod_handler *ctxt; |
| 98 | if (cp->handler) return 0; |
| 99 | |
| 100 | ctxt = kmalloc(sizeof(*ctxt),GFP_KERNEL); |
| 101 | if (!ctxt) return 0; |
| 102 | memset(ctxt,0,sizeof(*ctxt)); |
| 103 | |
| 104 | ctxt->i2c_handler.func_data = ctxt; |
| 105 | ctxt->i2c_handler.func_table = &tuner_funcs; |
| 106 | ctxt->type_update_fl = !0; |
| 107 | ctxt->client = cp; |
| 108 | ctxt->hdw = hdw; |
| 109 | cp->handler = &ctxt->i2c_handler; |
| 110 | pvr2_trace(PVR2_TRACE_CHIPS,"i2c 0x%x tda9887 V4L2 handler set up", |
| 111 | cp->client->addr); |
| 112 | return !0; |
| 113 | } |
| 114 | |
| 115 | |
| 116 | |
| 117 | |
| 118 | /* |
| 119 | Stuff for Emacs to see, in order to encourage consistent editing style: |
| 120 | *** Local Variables: *** |
| 121 | *** mode: c *** |
| 122 | *** fill-column: 70 *** |
| 123 | *** tab-width: 8 *** |
| 124 | *** c-basic-offset: 8 *** |
| 125 | *** End: *** |
| 126 | */ |