tda827x.c 25 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. *
  4. * (c) 2005 Hartmut Hackmann
  5. * (c) 2007 Michael Krufky
  6. */
  7. #include <linux/module.h>
  8. #include <linux/slab.h>
  9. #include <asm/types.h>
  10. #include <linux/dvb/frontend.h>
  11. #include <linux/videodev2.h>
  12. #include "tda827x.h"
  13. static int debug;
  14. module_param(debug, int, 0644);
  15. MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
  16. #define dprintk(args...) \
  17. do { \
  18. if (debug) printk(KERN_DEBUG "tda827x: " args); \
  19. } while (0)
  20. struct tda827x_priv {
  21. int i2c_addr;
  22. struct i2c_adapter *i2c_adap;
  23. struct tda827x_config *cfg;
  24. unsigned int sgIF;
  25. unsigned char lpsel;
  26. u32 frequency;
  27. u32 bandwidth;
  28. };
  29. static void tda827x_set_std(struct dvb_frontend *fe,
  30. struct analog_parameters *params)
  31. {
  32. struct tda827x_priv *priv = fe->tuner_priv;
  33. char *mode;
  34. priv->lpsel = 0;
  35. if (params->std & V4L2_STD_MN) {
  36. priv->sgIF = 92;
  37. priv->lpsel = 1;
  38. mode = "MN";
  39. } else if (params->std & V4L2_STD_B) {
  40. priv->sgIF = 108;
  41. mode = "B";
  42. } else if (params->std & V4L2_STD_GH) {
  43. priv->sgIF = 124;
  44. mode = "GH";
  45. } else if (params->std & V4L2_STD_PAL_I) {
  46. priv->sgIF = 124;
  47. mode = "I";
  48. } else if (params->std & V4L2_STD_DK) {
  49. priv->sgIF = 124;
  50. mode = "DK";
  51. } else if (params->std & V4L2_STD_SECAM_L) {
  52. priv->sgIF = 124;
  53. mode = "L";
  54. } else if (params->std & V4L2_STD_SECAM_LC) {
  55. priv->sgIF = 20;
  56. mode = "LC";
  57. } else {
  58. priv->sgIF = 124;
  59. mode = "xx";
  60. }
  61. if (params->mode == V4L2_TUNER_RADIO) {
  62. priv->sgIF = 88; /* if frequency is 5.5 MHz */
  63. dprintk("setting tda827x to radio FM\n");
  64. } else
  65. dprintk("setting tda827x to system %s\n", mode);
  66. }
  67. /* ------------------------------------------------------------------ */
  68. struct tda827x_data {
  69. u32 lomax;
  70. u8 spd;
  71. u8 bs;
  72. u8 bp;
  73. u8 cp;
  74. u8 gc3;
  75. u8 div1p5;
  76. };
  77. static const struct tda827x_data tda827x_table[] = {
  78. { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
  79. { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
  80. { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
  81. { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
  82. { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
  83. { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
  84. { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
  85. { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
  86. { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
  87. { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
  88. { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
  89. { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
  90. { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
  91. { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
  92. { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
  93. { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
  94. { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
  95. { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
  96. { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
  97. { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
  98. { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
  99. { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
  100. { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
  101. { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
  102. { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
  103. { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
  104. { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
  105. { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
  106. { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
  107. };
  108. static int tuner_transfer(struct dvb_frontend *fe,
  109. struct i2c_msg *msg,
  110. const int size)
  111. {
  112. int rc;
  113. struct tda827x_priv *priv = fe->tuner_priv;
  114. if (fe->ops.i2c_gate_ctrl)
  115. fe->ops.i2c_gate_ctrl(fe, 1);
  116. rc = i2c_transfer(priv->i2c_adap, msg, size);
  117. if (fe->ops.i2c_gate_ctrl)
  118. fe->ops.i2c_gate_ctrl(fe, 0);
  119. if (rc >= 0 && rc != size)
  120. return -EIO;
  121. return rc;
  122. }
  123. static int tda827xo_set_params(struct dvb_frontend *fe)
  124. {
  125. struct dtv_frontend_properties *c = &fe->dtv_property_cache;
  126. struct tda827x_priv *priv = fe->tuner_priv;
  127. u8 buf[14];
  128. int rc;
  129. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  130. .buf = buf, .len = sizeof(buf) };
  131. int i, tuner_freq, if_freq;
  132. u32 N;
  133. dprintk("%s:\n", __func__);
  134. if (c->bandwidth_hz == 0) {
  135. if_freq = 5000000;
  136. } else if (c->bandwidth_hz <= 6000000) {
  137. if_freq = 4000000;
  138. } else if (c->bandwidth_hz <= 7000000) {
  139. if_freq = 4500000;
  140. } else { /* 8 MHz */
  141. if_freq = 5000000;
  142. }
  143. tuner_freq = c->frequency;
  144. i = 0;
  145. while (tda827x_table[i].lomax < tuner_freq) {
  146. if (tda827x_table[i + 1].lomax == 0)
  147. break;
  148. i++;
  149. }
  150. tuner_freq += if_freq;
  151. N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
  152. buf[0] = 0;
  153. buf[1] = (N>>8) | 0x40;
  154. buf[2] = N & 0xff;
  155. buf[3] = 0;
  156. buf[4] = 0x52;
  157. buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
  158. (tda827x_table[i].bs << 3) +
  159. tda827x_table[i].bp;
  160. buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
  161. buf[7] = 0xbf;
  162. buf[8] = 0x2a;
  163. buf[9] = 0x05;
  164. buf[10] = 0xff;
  165. buf[11] = 0x00;
  166. buf[12] = 0x00;
  167. buf[13] = 0x40;
  168. msg.len = 14;
  169. rc = tuner_transfer(fe, &msg, 1);
  170. if (rc < 0)
  171. goto err;
  172. msleep(500);
  173. /* correct CP value */
  174. buf[0] = 0x30;
  175. buf[1] = 0x50 + tda827x_table[i].cp;
  176. msg.len = 2;
  177. rc = tuner_transfer(fe, &msg, 1);
  178. if (rc < 0)
  179. goto err;
  180. priv->frequency = c->frequency;
  181. priv->bandwidth = c->bandwidth_hz;
  182. return 0;
  183. err:
  184. printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
  185. __func__, priv->i2c_addr << 1);
  186. return rc;
  187. }
  188. static int tda827xo_sleep(struct dvb_frontend *fe)
  189. {
  190. struct tda827x_priv *priv = fe->tuner_priv;
  191. static u8 buf[] = { 0x30, 0xd0 };
  192. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  193. .buf = buf, .len = sizeof(buf) };
  194. dprintk("%s:\n", __func__);
  195. tuner_transfer(fe, &msg, 1);
  196. if (priv->cfg && priv->cfg->sleep)
  197. priv->cfg->sleep(fe);
  198. return 0;
  199. }
  200. /* ------------------------------------------------------------------ */
  201. static int tda827xo_set_analog_params(struct dvb_frontend *fe,
  202. struct analog_parameters *params)
  203. {
  204. unsigned char tuner_reg[8];
  205. unsigned char reg2[2];
  206. u32 N;
  207. int i;
  208. struct tda827x_priv *priv = fe->tuner_priv;
  209. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
  210. unsigned int freq = params->frequency;
  211. tda827x_set_std(fe, params);
  212. if (params->mode == V4L2_TUNER_RADIO)
  213. freq = freq / 1000;
  214. N = freq + priv->sgIF;
  215. i = 0;
  216. while (tda827x_table[i].lomax < N * 62500) {
  217. if (tda827x_table[i + 1].lomax == 0)
  218. break;
  219. i++;
  220. }
  221. N = N << tda827x_table[i].spd;
  222. tuner_reg[0] = 0;
  223. tuner_reg[1] = (unsigned char)(N>>8);
  224. tuner_reg[2] = (unsigned char) N;
  225. tuner_reg[3] = 0x40;
  226. tuner_reg[4] = 0x52 + (priv->lpsel << 5);
  227. tuner_reg[5] = (tda827x_table[i].spd << 6) +
  228. (tda827x_table[i].div1p5 << 5) +
  229. (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
  230. tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
  231. tuner_reg[7] = 0x8f;
  232. msg.buf = tuner_reg;
  233. msg.len = 8;
  234. tuner_transfer(fe, &msg, 1);
  235. msg.buf = reg2;
  236. msg.len = 2;
  237. reg2[0] = 0x80;
  238. reg2[1] = 0;
  239. tuner_transfer(fe, &msg, 1);
  240. reg2[0] = 0x60;
  241. reg2[1] = 0xbf;
  242. tuner_transfer(fe, &msg, 1);
  243. reg2[0] = 0x30;
  244. reg2[1] = tuner_reg[4] + 0x80;
  245. tuner_transfer(fe, &msg, 1);
  246. msleep(1);
  247. reg2[0] = 0x30;
  248. reg2[1] = tuner_reg[4] + 4;
  249. tuner_transfer(fe, &msg, 1);
  250. msleep(1);
  251. reg2[0] = 0x30;
  252. reg2[1] = tuner_reg[4];
  253. tuner_transfer(fe, &msg, 1);
  254. msleep(550);
  255. reg2[0] = 0x30;
  256. reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
  257. tuner_transfer(fe, &msg, 1);
  258. reg2[0] = 0x60;
  259. reg2[1] = 0x3f;
  260. tuner_transfer(fe, &msg, 1);
  261. reg2[0] = 0x80;
  262. reg2[1] = 0x08; /* Vsync en */
  263. tuner_transfer(fe, &msg, 1);
  264. priv->frequency = params->frequency;
  265. return 0;
  266. }
  267. static void tda827xo_agcf(struct dvb_frontend *fe)
  268. {
  269. struct tda827x_priv *priv = fe->tuner_priv;
  270. unsigned char data[] = { 0x80, 0x0c };
  271. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  272. .buf = data, .len = 2};
  273. tuner_transfer(fe, &msg, 1);
  274. }
  275. /* ------------------------------------------------------------------ */
  276. struct tda827xa_data {
  277. u32 lomax;
  278. u8 svco;
  279. u8 spd;
  280. u8 scr;
  281. u8 sbs;
  282. u8 gc3;
  283. };
  284. static struct tda827xa_data tda827xa_dvbt[] = {
  285. { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
  286. { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
  287. { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
  288. { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
  289. { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
  290. { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  291. { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  292. { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  293. { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  294. { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
  295. { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
  296. { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
  297. { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
  298. { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
  299. { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
  300. { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
  301. { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
  302. { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
  303. { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
  304. { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  305. { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  306. { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  307. { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  308. { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  309. { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  310. { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
  311. { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
  312. };
  313. static struct tda827xa_data tda827xa_dvbc[] = {
  314. { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
  315. { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
  316. { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
  317. { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
  318. { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
  319. { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
  320. { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
  321. { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
  322. { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
  323. { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
  324. { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
  325. { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
  326. { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
  327. { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
  328. { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
  329. { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
  330. { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
  331. { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
  332. { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
  333. { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
  334. { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
  335. { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
  336. { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
  337. { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
  338. { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
  339. { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
  340. { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
  341. };
  342. static struct tda827xa_data tda827xa_analog[] = {
  343. { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
  344. { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
  345. { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
  346. { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
  347. { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
  348. { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  349. { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  350. { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  351. { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
  352. { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
  353. { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
  354. { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
  355. { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
  356. { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
  357. { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
  358. { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
  359. { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
  360. { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
  361. { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  362. { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  363. { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  364. { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  365. { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
  366. { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
  367. { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
  368. { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
  369. };
  370. static int tda827xa_sleep(struct dvb_frontend *fe)
  371. {
  372. struct tda827x_priv *priv = fe->tuner_priv;
  373. static u8 buf[] = { 0x30, 0x90 };
  374. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  375. .buf = buf, .len = sizeof(buf) };
  376. dprintk("%s:\n", __func__);
  377. tuner_transfer(fe, &msg, 1);
  378. if (priv->cfg && priv->cfg->sleep)
  379. priv->cfg->sleep(fe);
  380. return 0;
  381. }
  382. static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
  383. struct analog_parameters *params)
  384. {
  385. struct tda827x_priv *priv = fe->tuner_priv;
  386. unsigned char buf[] = {0x22, 0x01};
  387. int arg;
  388. int gp_func;
  389. struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
  390. if (NULL == priv->cfg) {
  391. dprintk("tda827x_config not defined, cannot set LNA gain!\n");
  392. return;
  393. }
  394. msg.addr = priv->cfg->switch_addr;
  395. if (priv->cfg->config) {
  396. if (high)
  397. dprintk("setting LNA to high gain\n");
  398. else
  399. dprintk("setting LNA to low gain\n");
  400. }
  401. switch (priv->cfg->config) {
  402. case TDA8290_LNA_OFF: /* no LNA */
  403. break;
  404. case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */
  405. case TDA8290_LNA_GP0_HIGH_OFF:
  406. if (params == NULL) {
  407. gp_func = 0;
  408. arg = 0;
  409. } else {
  410. /* turn Vsync on */
  411. gp_func = 1;
  412. if (params->std & V4L2_STD_MN)
  413. arg = 1;
  414. else
  415. arg = 0;
  416. }
  417. if (fe->callback)
  418. fe->callback(priv->i2c_adap->algo_data,
  419. DVB_FRONTEND_COMPONENT_TUNER,
  420. gp_func, arg);
  421. buf[1] = high ? 0 : 1;
  422. if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)
  423. buf[1] = high ? 1 : 0;
  424. tuner_transfer(fe, &msg, 1);
  425. break;
  426. case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */
  427. if (fe->callback)
  428. fe->callback(priv->i2c_adap->algo_data,
  429. DVB_FRONTEND_COMPONENT_TUNER, 0, high);
  430. break;
  431. }
  432. }
  433. static int tda827xa_set_params(struct dvb_frontend *fe)
  434. {
  435. struct dtv_frontend_properties *c = &fe->dtv_property_cache;
  436. struct tda827x_priv *priv = fe->tuner_priv;
  437. struct tda827xa_data *frequency_map = tda827xa_dvbt;
  438. u8 buf[11];
  439. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  440. .buf = buf, .len = sizeof(buf) };
  441. int i, tuner_freq, if_freq, rc;
  442. u32 N;
  443. dprintk("%s:\n", __func__);
  444. tda827xa_lna_gain(fe, 1, NULL);
  445. msleep(20);
  446. if (c->bandwidth_hz == 0) {
  447. if_freq = 5000000;
  448. } else if (c->bandwidth_hz <= 6000000) {
  449. if_freq = 4000000;
  450. } else if (c->bandwidth_hz <= 7000000) {
  451. if_freq = 4500000;
  452. } else { /* 8 MHz */
  453. if_freq = 5000000;
  454. }
  455. tuner_freq = c->frequency;
  456. switch (c->delivery_system) {
  457. case SYS_DVBC_ANNEX_A:
  458. case SYS_DVBC_ANNEX_C:
  459. dprintk("%s select tda827xa_dvbc\n", __func__);
  460. frequency_map = tda827xa_dvbc;
  461. break;
  462. default:
  463. break;
  464. }
  465. i = 0;
  466. while (frequency_map[i].lomax < tuner_freq) {
  467. if (frequency_map[i + 1].lomax == 0)
  468. break;
  469. i++;
  470. }
  471. tuner_freq += if_freq;
  472. N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
  473. buf[0] = 0; // subaddress
  474. buf[1] = N >> 8;
  475. buf[2] = N & 0xff;
  476. buf[3] = 0;
  477. buf[4] = 0x16;
  478. buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
  479. frequency_map[i].sbs;
  480. buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
  481. buf[7] = 0x1c;
  482. buf[8] = 0x06;
  483. buf[9] = 0x24;
  484. buf[10] = 0x00;
  485. msg.len = 11;
  486. rc = tuner_transfer(fe, &msg, 1);
  487. if (rc < 0)
  488. goto err;
  489. buf[0] = 0x90;
  490. buf[1] = 0xff;
  491. buf[2] = 0x60;
  492. buf[3] = 0x00;
  493. buf[4] = 0x59; // lpsel, for 6MHz + 2
  494. msg.len = 5;
  495. rc = tuner_transfer(fe, &msg, 1);
  496. if (rc < 0)
  497. goto err;
  498. buf[0] = 0xa0;
  499. buf[1] = 0x40;
  500. msg.len = 2;
  501. rc = tuner_transfer(fe, &msg, 1);
  502. if (rc < 0)
  503. goto err;
  504. msleep(11);
  505. msg.flags = I2C_M_RD;
  506. rc = tuner_transfer(fe, &msg, 1);
  507. if (rc < 0)
  508. goto err;
  509. msg.flags = 0;
  510. buf[1] >>= 4;
  511. dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
  512. if ((buf[1]) < 2) {
  513. tda827xa_lna_gain(fe, 0, NULL);
  514. buf[0] = 0x60;
  515. buf[1] = 0x0c;
  516. rc = tuner_transfer(fe, &msg, 1);
  517. if (rc < 0)
  518. goto err;
  519. }
  520. buf[0] = 0xc0;
  521. buf[1] = 0x99; // lpsel, for 6MHz + 2
  522. rc = tuner_transfer(fe, &msg, 1);
  523. if (rc < 0)
  524. goto err;
  525. buf[0] = 0x60;
  526. buf[1] = 0x3c;
  527. rc = tuner_transfer(fe, &msg, 1);
  528. if (rc < 0)
  529. goto err;
  530. /* correct CP value */
  531. buf[0] = 0x30;
  532. buf[1] = 0x10 + frequency_map[i].scr;
  533. rc = tuner_transfer(fe, &msg, 1);
  534. if (rc < 0)
  535. goto err;
  536. msleep(163);
  537. buf[0] = 0xc0;
  538. buf[1] = 0x39; // lpsel, for 6MHz + 2
  539. rc = tuner_transfer(fe, &msg, 1);
  540. if (rc < 0)
  541. goto err;
  542. msleep(3);
  543. /* freeze AGC1 */
  544. buf[0] = 0x50;
  545. buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
  546. rc = tuner_transfer(fe, &msg, 1);
  547. if (rc < 0)
  548. goto err;
  549. priv->frequency = c->frequency;
  550. priv->bandwidth = c->bandwidth_hz;
  551. return 0;
  552. err:
  553. printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
  554. __func__, priv->i2c_addr << 1);
  555. return rc;
  556. }
  557. static int tda827xa_set_analog_params(struct dvb_frontend *fe,
  558. struct analog_parameters *params)
  559. {
  560. unsigned char tuner_reg[11];
  561. u32 N;
  562. int i;
  563. struct tda827x_priv *priv = fe->tuner_priv;
  564. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
  565. .buf = tuner_reg, .len = sizeof(tuner_reg) };
  566. unsigned int freq = params->frequency;
  567. tda827x_set_std(fe, params);
  568. tda827xa_lna_gain(fe, 1, params);
  569. msleep(10);
  570. if (params->mode == V4L2_TUNER_RADIO)
  571. freq = freq / 1000;
  572. N = freq + priv->sgIF;
  573. i = 0;
  574. while (tda827xa_analog[i].lomax < N * 62500) {
  575. if (tda827xa_analog[i + 1].lomax == 0)
  576. break;
  577. i++;
  578. }
  579. N = N << tda827xa_analog[i].spd;
  580. tuner_reg[0] = 0;
  581. tuner_reg[1] = (unsigned char)(N>>8);
  582. tuner_reg[2] = (unsigned char) N;
  583. tuner_reg[3] = 0;
  584. tuner_reg[4] = 0x16;
  585. tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
  586. (tda827xa_analog[i].svco << 3) +
  587. tda827xa_analog[i].sbs;
  588. tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
  589. tuner_reg[7] = 0x1c;
  590. tuner_reg[8] = 4;
  591. tuner_reg[9] = 0x20;
  592. tuner_reg[10] = 0x00;
  593. msg.len = 11;
  594. tuner_transfer(fe, &msg, 1);
  595. tuner_reg[0] = 0x90;
  596. tuner_reg[1] = 0xff;
  597. tuner_reg[2] = 0xe0;
  598. tuner_reg[3] = 0;
  599. tuner_reg[4] = 0x99 + (priv->lpsel << 1);
  600. msg.len = 5;
  601. tuner_transfer(fe, &msg, 1);
  602. tuner_reg[0] = 0xa0;
  603. tuner_reg[1] = 0xc0;
  604. msg.len = 2;
  605. tuner_transfer(fe, &msg, 1);
  606. tuner_reg[0] = 0x30;
  607. tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
  608. tuner_transfer(fe, &msg, 1);
  609. msg.flags = I2C_M_RD;
  610. tuner_transfer(fe, &msg, 1);
  611. msg.flags = 0;
  612. tuner_reg[1] >>= 4;
  613. dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
  614. if (tuner_reg[1] < 1)
  615. tda827xa_lna_gain(fe, 0, params);
  616. msleep(100);
  617. tuner_reg[0] = 0x60;
  618. tuner_reg[1] = 0x3c;
  619. tuner_transfer(fe, &msg, 1);
  620. msleep(163);
  621. tuner_reg[0] = 0x50;
  622. tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
  623. tuner_transfer(fe, &msg, 1);
  624. tuner_reg[0] = 0x80;
  625. tuner_reg[1] = 0x28;
  626. tuner_transfer(fe, &msg, 1);
  627. tuner_reg[0] = 0xb0;
  628. tuner_reg[1] = 0x01;
  629. tuner_transfer(fe, &msg, 1);
  630. tuner_reg[0] = 0xc0;
  631. tuner_reg[1] = 0x19 + (priv->lpsel << 1);
  632. tuner_transfer(fe, &msg, 1);
  633. priv->frequency = params->frequency;
  634. return 0;
  635. }
  636. static void tda827xa_agcf(struct dvb_frontend *fe)
  637. {
  638. struct tda827x_priv *priv = fe->tuner_priv;
  639. unsigned char data[] = {0x80, 0x2c};
  640. struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
  641. .buf = data, .len = 2};
  642. tuner_transfer(fe, &msg, 1);
  643. }
  644. /* ------------------------------------------------------------------ */
  645. static void tda827x_release(struct dvb_frontend *fe)
  646. {
  647. kfree(fe->tuner_priv);
  648. fe->tuner_priv = NULL;
  649. }
  650. static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
  651. {
  652. struct tda827x_priv *priv = fe->tuner_priv;
  653. *frequency = priv->frequency;
  654. return 0;
  655. }
  656. static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
  657. {
  658. struct tda827x_priv *priv = fe->tuner_priv;
  659. *bandwidth = priv->bandwidth;
  660. return 0;
  661. }
  662. static int tda827x_init(struct dvb_frontend *fe)
  663. {
  664. struct tda827x_priv *priv = fe->tuner_priv;
  665. dprintk("%s:\n", __func__);
  666. if (priv->cfg && priv->cfg->init)
  667. priv->cfg->init(fe);
  668. return 0;
  669. }
  670. static int tda827x_probe_version(struct dvb_frontend *fe);
  671. static int tda827x_initial_init(struct dvb_frontend *fe)
  672. {
  673. int ret;
  674. ret = tda827x_probe_version(fe);
  675. if (ret)
  676. return ret;
  677. return fe->ops.tuner_ops.init(fe);
  678. }
  679. static int tda827x_initial_sleep(struct dvb_frontend *fe)
  680. {
  681. int ret;
  682. ret = tda827x_probe_version(fe);
  683. if (ret)
  684. return ret;
  685. return fe->ops.tuner_ops.sleep(fe);
  686. }
  687. static const struct dvb_tuner_ops tda827xo_tuner_ops = {
  688. .info = {
  689. .name = "Philips TDA827X",
  690. .frequency_min_hz = 55 * MHz,
  691. .frequency_max_hz = 860 * MHz,
  692. .frequency_step_hz = 250 * kHz
  693. },
  694. .release = tda827x_release,
  695. .init = tda827x_initial_init,
  696. .sleep = tda827x_initial_sleep,
  697. .set_params = tda827xo_set_params,
  698. .set_analog_params = tda827xo_set_analog_params,
  699. .get_frequency = tda827x_get_frequency,
  700. .get_bandwidth = tda827x_get_bandwidth,
  701. };
  702. static const struct dvb_tuner_ops tda827xa_tuner_ops = {
  703. .info = {
  704. .name = "Philips TDA827XA",
  705. .frequency_min_hz = 44 * MHz,
  706. .frequency_max_hz = 906 * MHz,
  707. .frequency_step_hz = 62500
  708. },
  709. .release = tda827x_release,
  710. .init = tda827x_init,
  711. .sleep = tda827xa_sleep,
  712. .set_params = tda827xa_set_params,
  713. .set_analog_params = tda827xa_set_analog_params,
  714. .get_frequency = tda827x_get_frequency,
  715. .get_bandwidth = tda827x_get_bandwidth,
  716. };
  717. static int tda827x_probe_version(struct dvb_frontend *fe)
  718. {
  719. u8 data;
  720. int rc;
  721. struct tda827x_priv *priv = fe->tuner_priv;
  722. struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
  723. .buf = &data, .len = 1 };
  724. rc = tuner_transfer(fe, &msg, 1);
  725. if (rc < 0) {
  726. printk("%s: could not read from tuner at addr: 0x%02x\n",
  727. __func__, msg.addr << 1);
  728. return rc;
  729. }
  730. if ((data & 0x3c) == 0) {
  731. dprintk("tda827x tuner found\n");
  732. fe->ops.tuner_ops.init = tda827x_init;
  733. fe->ops.tuner_ops.sleep = tda827xo_sleep;
  734. if (priv->cfg)
  735. priv->cfg->agcf = tda827xo_agcf;
  736. } else {
  737. dprintk("tda827xa tuner found\n");
  738. memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
  739. if (priv->cfg)
  740. priv->cfg->agcf = tda827xa_agcf;
  741. }
  742. return 0;
  743. }
  744. struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
  745. struct i2c_adapter *i2c,
  746. struct tda827x_config *cfg)
  747. {
  748. struct tda827x_priv *priv = NULL;
  749. dprintk("%s:\n", __func__);
  750. priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
  751. if (priv == NULL)
  752. return NULL;
  753. priv->i2c_addr = addr;
  754. priv->i2c_adap = i2c;
  755. priv->cfg = cfg;
  756. memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
  757. fe->tuner_priv = priv;
  758. dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
  759. return fe;
  760. }
  761. EXPORT_SYMBOL_GPL(tda827x_attach);
  762. MODULE_DESCRIPTION("DVB TDA827x driver");
  763. MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
  764. MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
  765. MODULE_LICENSE("GPL");