Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 1 | /* tuner-xc2028 |
| 2 | * |
| 3 | * Copyright (c) 2007 Mauro Carvalho Chehab (mchehab@infradead.org) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 4 | * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com) |
| 5 | * - frontend interface |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 6 | * This code is placed under the terms of the GNU General Public License v2 |
| 7 | */ |
| 8 | |
| 9 | #include <linux/i2c.h> |
| 10 | #include <asm/div64.h> |
| 11 | #include <linux/firmware.h> |
| 12 | #include <linux/videodev.h> |
| 13 | #include <linux/delay.h> |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 14 | #include <media/tuner.h> |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 15 | #include <linux/mutex.h> |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 16 | #include "tuner-i2c.h" |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 17 | #include "tuner-xc2028.h" |
| 18 | |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 19 | #include <linux/dvb/frontend.h> |
| 20 | #include "dvb_frontend.h" |
| 21 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 22 | #define PREFIX "xc2028 " |
| 23 | |
| 24 | static LIST_HEAD(xc2028_list); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 25 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 26 | /* Firmwares used on tm5600/tm6000 + xc2028/xc3028 */ |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 27 | |
| 28 | /* Generic firmwares */ |
| 29 | static const char *firmware_INIT0 = "tm_xc3028_MTS_init0.fw"; |
| 30 | static const char *firmware_8MHZ_INIT0 = "tm_xc3028_8M_MTS_init0.fw"; |
| 31 | static const char *firmware_INIT1 = "tm_xc3028_68M_MTS_init1.fw"; |
| 32 | |
| 33 | /* Standard-specific firmwares */ |
| 34 | static const char *firmware_6M = "tm_xc3028_DTV_6M.fw"; |
Michel Ludwig | ff7326d | 2007-07-27 08:24:39 -0300 | [diff] [blame] | 35 | static const char *firmware_7M = "tm_xc3028_DTV_7M.fw"; |
| 36 | static const char *firmware_8M = "tm_xc3028_DTV_8M.fw"; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 37 | static const char *firmware_B = "tm_xc3028_B_PAL.fw"; |
| 38 | static const char *firmware_DK = "tm_xc3028_DK_PAL_MTS.fw"; |
| 39 | static const char *firmware_MN = "tm_xc3028_MN_BTSC.fw"; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 40 | |
| 41 | struct xc2028_data { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 42 | struct list_head xc2028_list; |
| 43 | struct tuner_i2c_props i2c_props; |
| 44 | int (*tuner_callback) (void *dev, |
| 45 | int command, int arg); |
| 46 | struct device *dev; |
| 47 | void *video_dev; |
| 48 | int count; |
| 49 | u32 frequency; |
| 50 | |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 51 | v4l2_std_id firm_type; /* video stds supported |
| 52 | by current firmware */ |
| 53 | fe_bandwidth_t bandwidth; /* Firmware bandwidth: |
| 54 | 6M, 7M or 8M */ |
| 55 | int need_load_generic; /* The generic firmware |
| 56 | were loaded? */ |
| 57 | enum tuner_mode mode; |
| 58 | struct i2c_client *i2c_client; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 59 | |
| 60 | struct mutex lock; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 61 | }; |
| 62 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 63 | #define i2c_send(rc, priv, buf, size) \ |
| 64 | if (size != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size))) \ |
| 65 | tuner_info("i2c output error: rc = %d (should be %d)\n", \ |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 66 | rc, (int)size); |
| 67 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 68 | #define i2c_rcv(rc, priv, buf, size) \ |
| 69 | if (size != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size))) \ |
| 70 | tuner_info("i2c input error: rc = %d (should be %d)\n", \ |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 71 | rc, (int)size); |
| 72 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 73 | #define send_seq(priv, data...) \ |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 74 | { int rc; \ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 75 | static u8 _val[] = data; \ |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 76 | if (sizeof(_val) != \ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 77 | (rc = tuner_i2c_xfer_send (&priv->i2c_props, \ |
| 78 | _val, sizeof(_val)))) { \ |
| 79 | tuner_info("Error on line %d: %d\n",__LINE__,rc); \ |
| 80 | return -EINVAL; \ |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 81 | } \ |
| 82 | msleep (10); \ |
| 83 | } |
| 84 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 85 | static int xc2028_get_reg(struct xc2028_data *priv, u16 reg) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 86 | { |
| 87 | int rc; |
| 88 | unsigned char buf[1]; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 89 | |
| 90 | tuner_info("%s called\n", __FUNCTION__); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 91 | |
| 92 | buf[0]= reg; |
| 93 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 94 | i2c_send(rc, priv, buf, sizeof(buf)); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 95 | if (rc<0) |
| 96 | return rc; |
| 97 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 98 | i2c_rcv(rc, priv, buf, 2); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 99 | if (rc<0) |
| 100 | return rc; |
| 101 | |
| 102 | return (buf[1])|(buf[0]<<8); |
| 103 | } |
| 104 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 105 | static int load_firmware (struct dvb_frontend *fe, const char *name) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 106 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 107 | struct xc2028_data *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 108 | const struct firmware *fw=NULL; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 109 | unsigned char *p, *endp; |
| 110 | int len=0, rc=0; |
| 111 | static const char firmware_ver[] = "tm6000/xcv v1"; |
| 112 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 113 | tuner_info("%s called\n", __FUNCTION__); |
| 114 | |
| 115 | tuner_info("Loading firmware %s\n", name); |
| 116 | rc = request_firmware(&fw, name, priv->dev); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 117 | if (rc < 0) { |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 118 | if (rc==-ENOENT) |
| 119 | tuner_info("Error: firmware %s not found.\n", name); |
| 120 | else |
| 121 | tuner_info("Error %d while requesting firmware %s \n", rc, name); |
| 122 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 123 | return rc; |
| 124 | } |
| 125 | p=fw->data; |
| 126 | endp=p+fw->size; |
| 127 | |
| 128 | if(fw->size==0) { |
| 129 | tuner_info("Error: firmware size is zero!\n"); |
| 130 | rc=-EINVAL; |
| 131 | goto err; |
| 132 | } |
| 133 | if (fw->size<sizeof(firmware_ver)-1) { |
| 134 | /* Firmware is incorrect */ |
| 135 | tuner_info("Error: firmware size is less than header (%d<%d)!\n", |
| 136 | (int)fw->size,(int)sizeof(firmware_ver)-1); |
| 137 | rc=-EINVAL; |
| 138 | goto err; |
| 139 | } |
| 140 | |
| 141 | if (memcmp(p,firmware_ver,sizeof(firmware_ver)-1)) { |
| 142 | /* Firmware is incorrect */ |
| 143 | tuner_info("Error: firmware is not for tm5600/6000 + Xcv2028/3028!\n"); |
| 144 | rc=-EINVAL; |
| 145 | goto err; |
| 146 | } |
| 147 | p+=sizeof(firmware_ver)-1; |
| 148 | |
| 149 | while(p<endp) { |
| 150 | if ((*p) & 0x80) { |
| 151 | /* Special callback command received */ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 152 | rc = priv->tuner_callback(priv->video_dev, |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 153 | XC2028_TUNER_RESET, (*p)&0x7f); |
| 154 | if (rc<0) { |
| 155 | tuner_info("Error at RESET code %d\n", |
| 156 | (*p)&0x7f); |
| 157 | goto err; |
| 158 | } |
| 159 | p++; |
| 160 | continue; |
| 161 | } |
| 162 | len=*p; |
| 163 | p++; |
| 164 | if (p+len+1>endp) { |
| 165 | /* Firmware is incorrect */ |
| 166 | tuner_info("Error: firmware is truncated!\n"); |
| 167 | rc=-EINVAL; |
| 168 | goto err; |
| 169 | } |
| 170 | if (len<=0) { |
| 171 | tuner_info("Error: firmware file is corrupted!\n"); |
| 172 | rc=-EINVAL; |
| 173 | goto err; |
| 174 | } |
| 175 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 176 | i2c_send(rc, priv, p, len); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 177 | if (rc<0) |
| 178 | goto err; |
| 179 | p+=len; |
| 180 | |
| 181 | if (*p) |
| 182 | msleep(*p); |
| 183 | p++; |
| 184 | } |
| 185 | |
| 186 | |
| 187 | err: |
| 188 | release_firmware(fw); |
| 189 | |
| 190 | return rc; |
| 191 | } |
| 192 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 193 | static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode, |
| 194 | v4l2_std_id std, |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 195 | fe_bandwidth_t bandwidth) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 196 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 197 | struct xc2028_data *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 198 | int rc, version; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 199 | const char *name; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 200 | int change_digital_bandwidth; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 201 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 202 | tuner_info("%s called\n", __FUNCTION__); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 203 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 204 | tuner_info( "I am in mode %u and I should switch to mode %i\n", |
| 205 | priv->mode, new_mode); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 206 | |
| 207 | /* first of all, determine whether we have switched the mode */ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 208 | if(new_mode != priv->mode) { |
| 209 | priv->mode = new_mode; |
| 210 | priv->need_load_generic = 1; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 211 | } |
| 212 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 213 | change_digital_bandwidth = (priv->mode == T_DIGITAL_TV |
| 214 | && bandwidth != priv->bandwidth) ? 1 : 0; |
| 215 | tuner_info("old bandwidth %u, new bandwidth %u\n", priv->bandwidth, |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 216 | bandwidth); |
| 217 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 218 | if (priv->need_load_generic) { |
| 219 | if (priv->bandwidth==8) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 220 | name = firmware_8MHZ_INIT0; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 221 | else |
| 222 | name = firmware_INIT0; |
| 223 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 224 | /* Reset is needed before loading firmware */ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 225 | rc = priv->tuner_callback(priv->video_dev, |
| 226 | XC2028_TUNER_RESET, 0); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 227 | if (rc<0) |
| 228 | return rc; |
| 229 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 230 | rc = load_firmware(fe,name); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 231 | if (rc<0) |
| 232 | return rc; |
| 233 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 234 | priv->need_load_generic=0; |
| 235 | priv->firm_type=0; |
| 236 | if(priv->mode == T_DIGITAL_TV) { |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 237 | change_digital_bandwidth=1; |
| 238 | } |
| 239 | } |
| 240 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 241 | tuner_info("I should change bandwidth %u\n", |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 242 | change_digital_bandwidth); |
| 243 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 244 | /* FIXME: t->std makes no sense here */ |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 245 | if (change_digital_bandwidth) { |
| 246 | switch(bandwidth) { |
| 247 | case BANDWIDTH_8_MHZ: |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 248 | std = V4L2_STD_DTV_8MHZ; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 249 | break; |
| 250 | |
| 251 | case BANDWIDTH_7_MHZ: |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 252 | std = V4L2_STD_DTV_7MHZ; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 253 | break; |
| 254 | |
| 255 | case BANDWIDTH_6_MHZ: |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 256 | std = V4L2_STD_DTV_6MHZ; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 257 | break; |
| 258 | |
| 259 | default: |
| 260 | tuner_info("error: bandwidth not supported.\n"); |
| 261 | }; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 262 | priv->bandwidth = bandwidth; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 263 | } |
| 264 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 265 | if (priv->firm_type & std) { |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 266 | tuner_info("xc3028: no need to load a std-specific firmware.\n"); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 267 | return 0; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 268 | } |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 269 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 270 | rc = load_firmware(fe,firmware_INIT1); |
Michel Ludwig | c2622e5 | 2007-07-18 10:26:38 -0300 | [diff] [blame] | 271 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 272 | if (std & V4L2_STD_MN) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 273 | name=firmware_MN; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 274 | else if (std & V4L2_STD_DTV_6MHZ) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 275 | name=firmware_6M; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 276 | else if (std & V4L2_STD_DTV_7MHZ) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 277 | name=firmware_7M; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 278 | else if (std & V4L2_STD_DTV_8MHZ) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 279 | name=firmware_8M; |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 280 | else if (std & V4L2_STD_PAL_B) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 281 | name=firmware_B; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 282 | else |
| 283 | name=firmware_DK; |
| 284 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 285 | tuner_info("loading firmware named %s.\n", name); |
| 286 | rc = load_firmware(fe, name); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 287 | if (rc<0) |
| 288 | return rc; |
| 289 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 290 | version = xc2028_get_reg(priv, 0x4); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 291 | tuner_info("Firmware version is %d.%d\n", |
| 292 | (version>>4)&0x0f,(version)&0x0f); |
| 293 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 294 | priv->firm_type=std; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 295 | |
| 296 | return 0; |
| 297 | } |
| 298 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 299 | static int xc2028_signal(struct dvb_frontend *fe, u16 *strength) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 300 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 301 | struct xc2028_data *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 302 | int frq_lock, signal=0; |
| 303 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 304 | tuner_info("%s called\n", __FUNCTION__); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 305 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 306 | mutex_lock(&priv->lock); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 307 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 308 | *strength = 0; |
| 309 | |
| 310 | frq_lock = xc2028_get_reg(priv, 0x2); |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 311 | if (frq_lock<=0) |
| 312 | goto ret; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 313 | |
| 314 | /* Frequency is locked. Return signal quality */ |
| 315 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 316 | signal = xc2028_get_reg(priv, 0x40); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 317 | |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 318 | if(signal<=0) { |
| 319 | signal=frq_lock; |
| 320 | } |
| 321 | |
| 322 | ret: |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 323 | mutex_unlock(&priv->lock); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 324 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 325 | *strength = signal; |
| 326 | |
| 327 | return 0; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | #define DIV 15625 |
| 331 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 332 | static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */, |
| 333 | enum tuner_mode new_mode, |
| 334 | v4l2_std_id std, |
| 335 | fe_bandwidth_t bandwidth) |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 336 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 337 | struct xc2028_data *priv = fe->tuner_priv; |
| 338 | int rc=-EINVAL; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 339 | unsigned char buf[5]; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 340 | u32 div, offset = 0; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 341 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 342 | tuner_info("%s called\n", __FUNCTION__); |
| 343 | |
Mauro Carvalho Chehab | d4e7668 | 2007-07-18 23:14:25 -0300 | [diff] [blame] | 344 | /* HACK: It seems that specific firmware need to be reloaded |
| 345 | when freq is changed */ |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 346 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 347 | mutex_lock(&priv->lock); |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 348 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 349 | priv->firm_type=0; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 350 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 351 | /* Reset GPIO 1 */ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 352 | rc = priv->tuner_callback(priv->video_dev, XC2028_TUNER_RESET, 0); |
| 353 | if (rc<0) |
| 354 | goto ret; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 355 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 356 | msleep(10); |
| 357 | tuner_info("should set frequency %d kHz)\n", freq / 1000); |
| 358 | |
| 359 | if (check_firmware(fe, new_mode, std, bandwidth)<0) |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 360 | goto ret; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 361 | |
Mauro Carvalho Chehab | d4e7668 | 2007-07-18 23:14:25 -0300 | [diff] [blame] | 362 | if(new_mode == T_DIGITAL_TV) |
| 363 | offset = 2750000; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 364 | |
Mauro Carvalho Chehab | d4e7668 | 2007-07-18 23:14:25 -0300 | [diff] [blame] | 365 | div = (freq - offset + DIV/2)/DIV; |
Mauro Carvalho Chehab | 2e4160c | 2007-07-18 13:33:23 -0300 | [diff] [blame] | 366 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 367 | /* CMD= Set frequency */ |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 368 | send_seq(priv, {0x00, 0x02, 0x00, 0x00}); |
| 369 | rc = priv->tuner_callback(priv->video_dev, XC2028_RESET_CLK, 1); |
| 370 | if (rc<0) |
| 371 | goto ret; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 372 | |
| 373 | msleep(10); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 374 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 375 | buf[0]= 0xff & (div>>24); |
| 376 | buf[1]= 0xff & (div>>16); |
| 377 | buf[2]= 0xff & (div>>8); |
| 378 | buf[3]= 0xff & (div); |
| 379 | buf[4]= 0; |
| 380 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 381 | i2c_send(rc, priv, buf, sizeof(buf)); |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 382 | if (rc<0) |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 383 | goto ret; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 384 | msleep(100); |
| 385 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 386 | priv->frequency=freq; |
| 387 | |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 388 | printk("divider= %02x %02x %02x %02x (freq=%d.%02d)\n", |
| 389 | buf[1],buf[2],buf[3],buf[4], |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 390 | freq / 1000000, (freq%1000000)/10000); |
| 391 | |
| 392 | rc=0; |
Mauro Carvalho Chehab | 3b20532 | 2007-09-27 18:27:03 -0300 | [diff] [blame] | 393 | |
| 394 | ret: |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 395 | mutex_unlock(&priv->lock); |
| 396 | |
| 397 | return rc; |
Mauro Carvalho Chehab | 6cb4587 | 2007-10-02 11:57:03 -0300 | [diff] [blame] | 398 | } |
| 399 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 400 | static int xc2028_set_tv_freq(struct dvb_frontend *fe, |
| 401 | struct analog_parameters *p) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 402 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 403 | struct xc2028_data *priv = fe->tuner_priv; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 404 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 405 | tuner_info("%s called\n", __FUNCTION__); |
| 406 | |
| 407 | return generic_set_tv_freq(fe, 62500l*p->frequency, T_ANALOG_TV, |
| 408 | p->std, |
| 409 | BANDWIDTH_8_MHZ /* NOT USED */); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 410 | } |
| 411 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 412 | static int xc2028_set_params(struct dvb_frontend *fe, |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 413 | struct dvb_frontend_parameters *p) |
| 414 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 415 | struct xc2028_data *priv = fe->tuner_priv; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 416 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 417 | tuner_info("%s called\n", __FUNCTION__); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 418 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 419 | /* FIXME: Only OFDM implemented */ |
| 420 | if (fe->ops.info.type != FE_OFDM) { |
| 421 | tuner_info ("DTV type not implemented.\n"); |
| 422 | return -EINVAL; |
| 423 | } |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 424 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 425 | return generic_set_tv_freq(fe, p->frequency, T_DIGITAL_TV, |
| 426 | 0, /* NOT USED */ |
| 427 | p->u.ofdm.bandwidth); |
| 428 | |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 429 | } |
| 430 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 431 | static int xc2028_dvb_release(struct dvb_frontend *fe) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 432 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 433 | struct xc2028_data *priv = fe->tuner_priv; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 434 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 435 | tuner_info("%s called\n", __FUNCTION__); |
| 436 | |
| 437 | priv->count--; |
| 438 | |
| 439 | if (!priv->count) |
| 440 | kfree (priv); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 441 | |
| 442 | return 0; |
| 443 | } |
| 444 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 445 | static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 446 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 447 | struct xc2028_data *priv = fe->tuner_priv; |
| 448 | |
| 449 | tuner_info("%s called\n", __FUNCTION__); |
| 450 | |
| 451 | *frequency = priv->frequency; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 452 | |
| 453 | return 0; |
| 454 | } |
| 455 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 456 | static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = { |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 457 | .info = { |
| 458 | .name = "Xceive XC3028", |
| 459 | .frequency_min = 42000000, |
| 460 | .frequency_max = 864000000, |
| 461 | .frequency_step = 50000, |
| 462 | }, |
| 463 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 464 | .set_analog_params = xc2028_set_tv_freq, |
| 465 | .release = xc2028_dvb_release, |
| 466 | .get_frequency = xc2028_get_frequency, |
| 467 | .get_rf_strength = xc2028_signal, |
| 468 | .set_params = xc2028_set_params, |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 469 | |
| 470 | // int (*sleep)(struct dvb_frontend *fe); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 471 | // int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 472 | // int (*get_status)(struct dvb_frontend *fe, u32 *status); |
| 473 | }; |
| 474 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 475 | int xc2028_attach(struct dvb_frontend *fe, struct i2c_adapter* i2c_adap, |
| 476 | u8 i2c_addr, struct device *dev, void *video_dev, |
| 477 | int (*tuner_callback) (void *dev, int command,int arg)) |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 478 | { |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 479 | struct xc2028_data *priv; |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 480 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 481 | printk( KERN_INFO PREFIX "Xcv2028/3028 init called!\n"); |
| 482 | |
| 483 | if (NULL == dev) |
| 484 | return -ENODEV; |
| 485 | |
| 486 | if (NULL == video_dev) |
| 487 | return -ENODEV; |
| 488 | |
| 489 | if (!tuner_callback) { |
| 490 | printk( KERN_ERR PREFIX "No tuner callback!\n"); |
| 491 | return -EINVAL; |
| 492 | } |
| 493 | |
| 494 | list_for_each_entry(priv, &xc2028_list, xc2028_list) { |
| 495 | if (priv->dev == dev) { |
| 496 | dev = NULL; |
| 497 | priv->count++; |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | if (dev) { |
| 502 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
| 503 | if (priv == NULL) |
| 504 | return -ENOMEM; |
| 505 | |
| 506 | fe->tuner_priv = priv; |
| 507 | |
| 508 | priv->bandwidth=BANDWIDTH_6_MHZ; |
| 509 | priv->need_load_generic=1; |
| 510 | priv->mode = T_UNINITIALIZED; |
| 511 | priv->i2c_props.addr = i2c_addr; |
| 512 | priv->i2c_props.adap = i2c_adap; |
| 513 | priv->dev = dev; |
| 514 | priv->video_dev = video_dev; |
| 515 | priv->tuner_callback = tuner_callback; |
| 516 | |
| 517 | mutex_init(&priv->lock); |
| 518 | |
| 519 | list_add_tail(&priv->xc2028_list,&xc2028_list); |
| 520 | } |
| 521 | |
| 522 | memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops, |
| 523 | sizeof(xc2028_dvb_tuner_ops)); |
| 524 | |
| 525 | tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner"); |
Michel Ludwig | 701672e | 2007-07-18 10:29:10 -0300 | [diff] [blame] | 526 | |
| 527 | return 0; |
| 528 | } |
| 529 | |
| 530 | EXPORT_SYMBOL(xc2028_attach); |
| 531 | |
Mauro Carvalho Chehab | 215b95b | 2007-10-23 15:24:06 -0300 | [diff] [blame^] | 532 | MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver"); |
| 533 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
| 534 | MODULE_LICENSE("GPL"); |