150acfb2bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 29a0bf528SMauro Carvalho Chehab /* 39a0bf528SMauro Carvalho Chehab * Sharp VA3A5JZ921 One Seg Broadcast Module driver 49a0bf528SMauro Carvalho Chehab * This device is labeled as just S. 921 at the top of the frontend can 59a0bf528SMauro Carvalho Chehab * 637e59f87SMauro Carvalho Chehab * Copyright (C) 2009-2010 Mauro Carvalho Chehab 79a0bf528SMauro Carvalho Chehab * Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com> 89a0bf528SMauro Carvalho Chehab * 99a0bf528SMauro Carvalho Chehab * Developed for Leadership SBTVD 1seg device sold in Brazil 109a0bf528SMauro Carvalho Chehab * 119a0bf528SMauro Carvalho Chehab * Frontend module based on cx24123 driver, getting some info from 129a0bf528SMauro Carvalho Chehab * the old s921 driver. 139a0bf528SMauro Carvalho Chehab * 149a0bf528SMauro Carvalho Chehab * FIXME: Need to port to DVB v5.2 API 159a0bf528SMauro Carvalho Chehab */ 169a0bf528SMauro Carvalho Chehab 179a0bf528SMauro Carvalho Chehab #include <linux/kernel.h> 189a0bf528SMauro Carvalho Chehab #include <asm/div64.h> 199a0bf528SMauro Carvalho Chehab 20fada1935SMauro Carvalho Chehab #include <media/dvb_frontend.h> 219a0bf528SMauro Carvalho Chehab #include "s921.h" 229a0bf528SMauro Carvalho Chehab 239a0bf528SMauro Carvalho Chehab static int debug = 1; 249a0bf528SMauro Carvalho Chehab module_param(debug, int, 0644); 259a0bf528SMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); 269a0bf528SMauro Carvalho Chehab 279a0bf528SMauro Carvalho Chehab #define rc(args...) do { \ 289a0bf528SMauro Carvalho Chehab printk(KERN_ERR "s921: " args); \ 299a0bf528SMauro Carvalho Chehab } while (0) 309a0bf528SMauro Carvalho Chehab 319a0bf528SMauro Carvalho Chehab #define dprintk(args...) \ 329a0bf528SMauro Carvalho Chehab do { \ 339a0bf528SMauro Carvalho Chehab if (debug) { \ 349a0bf528SMauro Carvalho Chehab printk(KERN_DEBUG "s921: %s: ", __func__); \ 359a0bf528SMauro Carvalho Chehab printk(args); \ 369a0bf528SMauro Carvalho Chehab } \ 379a0bf528SMauro Carvalho Chehab } while (0) 389a0bf528SMauro Carvalho Chehab 399a0bf528SMauro Carvalho Chehab struct s921_state { 409a0bf528SMauro Carvalho Chehab struct i2c_adapter *i2c; 419a0bf528SMauro Carvalho Chehab const struct s921_config *config; 429a0bf528SMauro Carvalho Chehab 439a0bf528SMauro Carvalho Chehab struct dvb_frontend frontend; 449a0bf528SMauro Carvalho Chehab 459a0bf528SMauro Carvalho Chehab /* The Demod can't easily provide these, we cache them */ 469a0bf528SMauro Carvalho Chehab u32 currentfreq; 479a0bf528SMauro Carvalho Chehab }; 489a0bf528SMauro Carvalho Chehab 499a0bf528SMauro Carvalho Chehab /* 509a0bf528SMauro Carvalho Chehab * Various tuner defaults need to be established for a given frequency kHz. 519a0bf528SMauro Carvalho Chehab * fixme: The bounds on the bands do not match the doc in real life. 529a0bf528SMauro Carvalho Chehab * fixme: Some of them have been moved, other might need adjustment. 539a0bf528SMauro Carvalho Chehab */ 549a0bf528SMauro Carvalho Chehab static struct s921_bandselect_val { 559a0bf528SMauro Carvalho Chehab u32 freq_low; 569a0bf528SMauro Carvalho Chehab u8 band_reg; 579a0bf528SMauro Carvalho Chehab } s921_bandselect[] = { 589a0bf528SMauro Carvalho Chehab { 0, 0x7b }, 599a0bf528SMauro Carvalho Chehab { 485140000, 0x5b }, 609a0bf528SMauro Carvalho Chehab { 515140000, 0x3b }, 619a0bf528SMauro Carvalho Chehab { 545140000, 0x1b }, 629a0bf528SMauro Carvalho Chehab { 599140000, 0xfb }, 639a0bf528SMauro Carvalho Chehab { 623140000, 0xdb }, 649a0bf528SMauro Carvalho Chehab { 659140000, 0xbb }, 659a0bf528SMauro Carvalho Chehab { 713140000, 0x9b }, 669a0bf528SMauro Carvalho Chehab }; 679a0bf528SMauro Carvalho Chehab 689a0bf528SMauro Carvalho Chehab struct regdata { 699a0bf528SMauro Carvalho Chehab u8 reg; 709a0bf528SMauro Carvalho Chehab u8 data; 719a0bf528SMauro Carvalho Chehab }; 729a0bf528SMauro Carvalho Chehab 739a0bf528SMauro Carvalho Chehab static struct regdata s921_init[] = { 749a0bf528SMauro Carvalho Chehab { 0x01, 0x80 }, /* Probably, a reset sequence */ 759a0bf528SMauro Carvalho Chehab { 0x01, 0x40 }, 769a0bf528SMauro Carvalho Chehab { 0x01, 0x80 }, 779a0bf528SMauro Carvalho Chehab { 0x01, 0x40 }, 789a0bf528SMauro Carvalho Chehab 799a0bf528SMauro Carvalho Chehab { 0x02, 0x00 }, 809a0bf528SMauro Carvalho Chehab { 0x03, 0x40 }, 819a0bf528SMauro Carvalho Chehab { 0x04, 0x01 }, 829a0bf528SMauro Carvalho Chehab { 0x05, 0x00 }, 839a0bf528SMauro Carvalho Chehab { 0x06, 0x00 }, 849a0bf528SMauro Carvalho Chehab { 0x07, 0x00 }, 859a0bf528SMauro Carvalho Chehab { 0x08, 0x00 }, 869a0bf528SMauro Carvalho Chehab { 0x09, 0x00 }, 879a0bf528SMauro Carvalho Chehab { 0x0a, 0x00 }, 889a0bf528SMauro Carvalho Chehab { 0x0b, 0x5a }, 899a0bf528SMauro Carvalho Chehab { 0x0c, 0x00 }, 909a0bf528SMauro Carvalho Chehab { 0x0d, 0x00 }, 919a0bf528SMauro Carvalho Chehab { 0x0f, 0x00 }, 929a0bf528SMauro Carvalho Chehab { 0x13, 0x1b }, 939a0bf528SMauro Carvalho Chehab { 0x14, 0x80 }, 949a0bf528SMauro Carvalho Chehab { 0x15, 0x40 }, 959a0bf528SMauro Carvalho Chehab { 0x17, 0x70 }, 969a0bf528SMauro Carvalho Chehab { 0x18, 0x01 }, 979a0bf528SMauro Carvalho Chehab { 0x19, 0x12 }, 989a0bf528SMauro Carvalho Chehab { 0x1a, 0x01 }, 999a0bf528SMauro Carvalho Chehab { 0x1b, 0x12 }, 1009a0bf528SMauro Carvalho Chehab { 0x1c, 0xa0 }, 1019a0bf528SMauro Carvalho Chehab { 0x1d, 0x00 }, 1029a0bf528SMauro Carvalho Chehab { 0x1e, 0x0a }, 1039a0bf528SMauro Carvalho Chehab { 0x1f, 0x08 }, 1049a0bf528SMauro Carvalho Chehab { 0x20, 0x40 }, 1059a0bf528SMauro Carvalho Chehab { 0x21, 0xff }, 1069a0bf528SMauro Carvalho Chehab { 0x22, 0x4c }, 1079a0bf528SMauro Carvalho Chehab { 0x23, 0x4e }, 1089a0bf528SMauro Carvalho Chehab { 0x24, 0x4c }, 1099a0bf528SMauro Carvalho Chehab { 0x25, 0x00 }, 1109a0bf528SMauro Carvalho Chehab { 0x26, 0x00 }, 1119a0bf528SMauro Carvalho Chehab { 0x27, 0xf4 }, 1129a0bf528SMauro Carvalho Chehab { 0x28, 0x60 }, 1139a0bf528SMauro Carvalho Chehab { 0x29, 0x88 }, 1149a0bf528SMauro Carvalho Chehab { 0x2a, 0x40 }, 1159a0bf528SMauro Carvalho Chehab { 0x2b, 0x40 }, 1169a0bf528SMauro Carvalho Chehab { 0x2c, 0xff }, 1179a0bf528SMauro Carvalho Chehab { 0x2d, 0x00 }, 1189a0bf528SMauro Carvalho Chehab { 0x2e, 0xff }, 1199a0bf528SMauro Carvalho Chehab { 0x2f, 0x00 }, 1209a0bf528SMauro Carvalho Chehab { 0x30, 0x20 }, 1219a0bf528SMauro Carvalho Chehab { 0x31, 0x06 }, 1229a0bf528SMauro Carvalho Chehab { 0x32, 0x0c }, 1239a0bf528SMauro Carvalho Chehab { 0x34, 0x0f }, 1249a0bf528SMauro Carvalho Chehab { 0x37, 0xfe }, 1259a0bf528SMauro Carvalho Chehab { 0x38, 0x00 }, 1269a0bf528SMauro Carvalho Chehab { 0x39, 0x63 }, 1279a0bf528SMauro Carvalho Chehab { 0x3a, 0x10 }, 1289a0bf528SMauro Carvalho Chehab { 0x3b, 0x10 }, 1299a0bf528SMauro Carvalho Chehab { 0x47, 0x00 }, 1309a0bf528SMauro Carvalho Chehab { 0x49, 0xe5 }, 1319a0bf528SMauro Carvalho Chehab { 0x4b, 0x00 }, 1329a0bf528SMauro Carvalho Chehab { 0x50, 0xc0 }, 1339a0bf528SMauro Carvalho Chehab { 0x52, 0x20 }, 1349a0bf528SMauro Carvalho Chehab { 0x54, 0x5a }, 1359a0bf528SMauro Carvalho Chehab { 0x55, 0x5b }, 1369a0bf528SMauro Carvalho Chehab { 0x56, 0x40 }, 1379a0bf528SMauro Carvalho Chehab { 0x57, 0x70 }, 1389a0bf528SMauro Carvalho Chehab { 0x5c, 0x50 }, 1399a0bf528SMauro Carvalho Chehab { 0x5d, 0x00 }, 1409a0bf528SMauro Carvalho Chehab { 0x62, 0x17 }, 1419a0bf528SMauro Carvalho Chehab { 0x63, 0x2f }, 1429a0bf528SMauro Carvalho Chehab { 0x64, 0x6f }, 1439a0bf528SMauro Carvalho Chehab { 0x68, 0x00 }, 1449a0bf528SMauro Carvalho Chehab { 0x69, 0x89 }, 1459a0bf528SMauro Carvalho Chehab { 0x6a, 0x00 }, 1469a0bf528SMauro Carvalho Chehab { 0x6b, 0x00 }, 1479a0bf528SMauro Carvalho Chehab { 0x6c, 0x00 }, 1489a0bf528SMauro Carvalho Chehab { 0x6d, 0x00 }, 1499a0bf528SMauro Carvalho Chehab { 0x6e, 0x00 }, 1509a0bf528SMauro Carvalho Chehab { 0x70, 0x10 }, 1519a0bf528SMauro Carvalho Chehab { 0x71, 0x00 }, 1529a0bf528SMauro Carvalho Chehab { 0x75, 0x00 }, 1539a0bf528SMauro Carvalho Chehab { 0x76, 0x30 }, 1549a0bf528SMauro Carvalho Chehab { 0x77, 0x01 }, 1559a0bf528SMauro Carvalho Chehab { 0xaf, 0x00 }, 1569a0bf528SMauro Carvalho Chehab { 0xb0, 0xa0 }, 1579a0bf528SMauro Carvalho Chehab { 0xb2, 0x3d }, 1589a0bf528SMauro Carvalho Chehab { 0xb3, 0x25 }, 1599a0bf528SMauro Carvalho Chehab { 0xb4, 0x8b }, 1609a0bf528SMauro Carvalho Chehab { 0xb5, 0x4b }, 1619a0bf528SMauro Carvalho Chehab { 0xb6, 0x3f }, 1629a0bf528SMauro Carvalho Chehab { 0xb7, 0xff }, 1639a0bf528SMauro Carvalho Chehab { 0xb8, 0xff }, 1649a0bf528SMauro Carvalho Chehab { 0xb9, 0xfc }, 1659a0bf528SMauro Carvalho Chehab { 0xba, 0x00 }, 1669a0bf528SMauro Carvalho Chehab { 0xbb, 0x00 }, 1679a0bf528SMauro Carvalho Chehab { 0xbc, 0x00 }, 1689a0bf528SMauro Carvalho Chehab { 0xd0, 0x30 }, 1699a0bf528SMauro Carvalho Chehab { 0xe4, 0x84 }, 1709a0bf528SMauro Carvalho Chehab { 0xf0, 0x48 }, 1719a0bf528SMauro Carvalho Chehab { 0xf1, 0x19 }, 1729a0bf528SMauro Carvalho Chehab { 0xf2, 0x5a }, 1739a0bf528SMauro Carvalho Chehab { 0xf3, 0x8e }, 1749a0bf528SMauro Carvalho Chehab { 0xf4, 0x2d }, 1759a0bf528SMauro Carvalho Chehab { 0xf5, 0x07 }, 1769a0bf528SMauro Carvalho Chehab { 0xf6, 0x5a }, 1779a0bf528SMauro Carvalho Chehab { 0xf7, 0xba }, 1789a0bf528SMauro Carvalho Chehab { 0xf8, 0xd7 }, 1799a0bf528SMauro Carvalho Chehab }; 1809a0bf528SMauro Carvalho Chehab 1819a0bf528SMauro Carvalho Chehab static struct regdata s921_prefreq[] = { 1829a0bf528SMauro Carvalho Chehab { 0x47, 0x60 }, 1839a0bf528SMauro Carvalho Chehab { 0x68, 0x00 }, 1849a0bf528SMauro Carvalho Chehab { 0x69, 0x89 }, 1859a0bf528SMauro Carvalho Chehab { 0xf0, 0x48 }, 1869a0bf528SMauro Carvalho Chehab { 0xf1, 0x19 }, 1879a0bf528SMauro Carvalho Chehab }; 1889a0bf528SMauro Carvalho Chehab 1899a0bf528SMauro Carvalho Chehab static struct regdata s921_postfreq[] = { 1909a0bf528SMauro Carvalho Chehab { 0xf5, 0xae }, 1919a0bf528SMauro Carvalho Chehab { 0xf6, 0xb7 }, 1929a0bf528SMauro Carvalho Chehab { 0xf7, 0xba }, 1939a0bf528SMauro Carvalho Chehab { 0xf8, 0xd7 }, 1949a0bf528SMauro Carvalho Chehab { 0x68, 0x0a }, 1959a0bf528SMauro Carvalho Chehab { 0x69, 0x09 }, 1969a0bf528SMauro Carvalho Chehab }; 1979a0bf528SMauro Carvalho Chehab 1989a0bf528SMauro Carvalho Chehab static int s921_i2c_writereg(struct s921_state *state, 1999a0bf528SMauro Carvalho Chehab u8 i2c_addr, int reg, int data) 2009a0bf528SMauro Carvalho Chehab { 2019a0bf528SMauro Carvalho Chehab u8 buf[] = { reg, data }; 2029a0bf528SMauro Carvalho Chehab struct i2c_msg msg = { 2039a0bf528SMauro Carvalho Chehab .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2 2049a0bf528SMauro Carvalho Chehab }; 2059a0bf528SMauro Carvalho Chehab int rc; 2069a0bf528SMauro Carvalho Chehab 2079a0bf528SMauro Carvalho Chehab rc = i2c_transfer(state->i2c, &msg, 1); 2089a0bf528SMauro Carvalho Chehab if (rc != 1) { 2094bd69e7bSMauro Carvalho Chehab printk("%s: writereg rcor(rc == %i, reg == 0x%02x, data == 0x%02x)\n", 2104bd69e7bSMauro Carvalho Chehab __func__, rc, reg, data); 2119a0bf528SMauro Carvalho Chehab return rc; 2129a0bf528SMauro Carvalho Chehab } 2139a0bf528SMauro Carvalho Chehab 2149a0bf528SMauro Carvalho Chehab return 0; 2159a0bf528SMauro Carvalho Chehab } 2169a0bf528SMauro Carvalho Chehab 2179a0bf528SMauro Carvalho Chehab static int s921_i2c_writeregdata(struct s921_state *state, u8 i2c_addr, 2189a0bf528SMauro Carvalho Chehab struct regdata *rd, int size) 2199a0bf528SMauro Carvalho Chehab { 2209a0bf528SMauro Carvalho Chehab int i, rc; 2219a0bf528SMauro Carvalho Chehab 2229a0bf528SMauro Carvalho Chehab for (i = 0; i < size; i++) { 2239a0bf528SMauro Carvalho Chehab rc = s921_i2c_writereg(state, i2c_addr, rd[i].reg, rd[i].data); 2249a0bf528SMauro Carvalho Chehab if (rc < 0) 2259a0bf528SMauro Carvalho Chehab return rc; 2269a0bf528SMauro Carvalho Chehab } 2279a0bf528SMauro Carvalho Chehab return 0; 2289a0bf528SMauro Carvalho Chehab } 2299a0bf528SMauro Carvalho Chehab 2309a0bf528SMauro Carvalho Chehab static int s921_i2c_readreg(struct s921_state *state, u8 i2c_addr, u8 reg) 2319a0bf528SMauro Carvalho Chehab { 2329a0bf528SMauro Carvalho Chehab u8 val; 2339a0bf528SMauro Carvalho Chehab int rc; 2349a0bf528SMauro Carvalho Chehab struct i2c_msg msg[] = { 2359a0bf528SMauro Carvalho Chehab { .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 }, 2369a0bf528SMauro Carvalho Chehab { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 } 2379a0bf528SMauro Carvalho Chehab }; 2389a0bf528SMauro Carvalho Chehab 2399a0bf528SMauro Carvalho Chehab rc = i2c_transfer(state->i2c, msg, 2); 2409a0bf528SMauro Carvalho Chehab 2419a0bf528SMauro Carvalho Chehab if (rc != 2) { 2429a0bf528SMauro Carvalho Chehab rc("%s: reg=0x%x (rcor=%d)\n", __func__, reg, rc); 2439a0bf528SMauro Carvalho Chehab return rc; 2449a0bf528SMauro Carvalho Chehab } 2459a0bf528SMauro Carvalho Chehab 2469a0bf528SMauro Carvalho Chehab return val; 2479a0bf528SMauro Carvalho Chehab } 2489a0bf528SMauro Carvalho Chehab 2499a0bf528SMauro Carvalho Chehab #define s921_readreg(state, reg) \ 2509a0bf528SMauro Carvalho Chehab s921_i2c_readreg(state, state->config->demod_address, reg) 2519a0bf528SMauro Carvalho Chehab #define s921_writereg(state, reg, val) \ 2529a0bf528SMauro Carvalho Chehab s921_i2c_writereg(state, state->config->demod_address, reg, val) 2539a0bf528SMauro Carvalho Chehab #define s921_writeregdata(state, regdata) \ 2549a0bf528SMauro Carvalho Chehab s921_i2c_writeregdata(state, state->config->demod_address, \ 2559a0bf528SMauro Carvalho Chehab regdata, ARRAY_SIZE(regdata)) 2569a0bf528SMauro Carvalho Chehab 2579a0bf528SMauro Carvalho Chehab static int s921_pll_tune(struct dvb_frontend *fe) 2589a0bf528SMauro Carvalho Chehab { 2599a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *p = &fe->dtv_property_cache; 2609a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 2619a0bf528SMauro Carvalho Chehab int band, rc, i; 2629a0bf528SMauro Carvalho Chehab unsigned long f_offset; 2639a0bf528SMauro Carvalho Chehab u8 f_switch; 2649a0bf528SMauro Carvalho Chehab u64 offset; 2659a0bf528SMauro Carvalho Chehab 2669a0bf528SMauro Carvalho Chehab dprintk("frequency=%i\n", p->frequency); 2679a0bf528SMauro Carvalho Chehab 2689a0bf528SMauro Carvalho Chehab for (band = 0; band < ARRAY_SIZE(s921_bandselect); band++) 2699a0bf528SMauro Carvalho Chehab if (p->frequency < s921_bandselect[band].freq_low) 2709a0bf528SMauro Carvalho Chehab break; 2719a0bf528SMauro Carvalho Chehab band--; 2729a0bf528SMauro Carvalho Chehab 2739a0bf528SMauro Carvalho Chehab if (band < 0) { 2749a0bf528SMauro Carvalho Chehab rc("%s: frequency out of range\n", __func__); 2759a0bf528SMauro Carvalho Chehab return -EINVAL; 2769a0bf528SMauro Carvalho Chehab } 2779a0bf528SMauro Carvalho Chehab 2789a0bf528SMauro Carvalho Chehab f_switch = s921_bandselect[band].band_reg; 2799a0bf528SMauro Carvalho Chehab 2809a0bf528SMauro Carvalho Chehab offset = ((u64)p->frequency) * 258; 2819a0bf528SMauro Carvalho Chehab do_div(offset, 6000000); 2829a0bf528SMauro Carvalho Chehab f_offset = ((unsigned long)offset) + 2321; 2839a0bf528SMauro Carvalho Chehab 2849a0bf528SMauro Carvalho Chehab rc = s921_writeregdata(state, s921_prefreq); 2859a0bf528SMauro Carvalho Chehab if (rc < 0) 2869a0bf528SMauro Carvalho Chehab return rc; 2879a0bf528SMauro Carvalho Chehab 2889a0bf528SMauro Carvalho Chehab rc = s921_writereg(state, 0xf2, (f_offset >> 8) & 0xff); 2899a0bf528SMauro Carvalho Chehab if (rc < 0) 2909a0bf528SMauro Carvalho Chehab return rc; 2919a0bf528SMauro Carvalho Chehab 2929a0bf528SMauro Carvalho Chehab rc = s921_writereg(state, 0xf3, f_offset & 0xff); 2939a0bf528SMauro Carvalho Chehab if (rc < 0) 2949a0bf528SMauro Carvalho Chehab return rc; 2959a0bf528SMauro Carvalho Chehab 2969a0bf528SMauro Carvalho Chehab rc = s921_writereg(state, 0xf4, f_switch); 2979a0bf528SMauro Carvalho Chehab if (rc < 0) 2989a0bf528SMauro Carvalho Chehab return rc; 2999a0bf528SMauro Carvalho Chehab 3009a0bf528SMauro Carvalho Chehab rc = s921_writeregdata(state, s921_postfreq); 3019a0bf528SMauro Carvalho Chehab if (rc < 0) 3029a0bf528SMauro Carvalho Chehab return rc; 3039a0bf528SMauro Carvalho Chehab 3049a0bf528SMauro Carvalho Chehab for (i = 0 ; i < 6; i++) { 3059a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x80); 3069a0bf528SMauro Carvalho Chehab dprintk("status 0x80: %02x\n", rc); 3079a0bf528SMauro Carvalho Chehab } 3089a0bf528SMauro Carvalho Chehab rc = s921_writereg(state, 0x01, 0x40); 3099a0bf528SMauro Carvalho Chehab if (rc < 0) 3109a0bf528SMauro Carvalho Chehab return rc; 3119a0bf528SMauro Carvalho Chehab 3129a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x01); 3139a0bf528SMauro Carvalho Chehab dprintk("status 0x01: %02x\n", rc); 3149a0bf528SMauro Carvalho Chehab 3159a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x80); 3169a0bf528SMauro Carvalho Chehab dprintk("status 0x80: %02x\n", rc); 3179a0bf528SMauro Carvalho Chehab 3189a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x80); 3199a0bf528SMauro Carvalho Chehab dprintk("status 0x80: %02x\n", rc); 3209a0bf528SMauro Carvalho Chehab 3219a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x32); 3229a0bf528SMauro Carvalho Chehab dprintk("status 0x32: %02x\n", rc); 3239a0bf528SMauro Carvalho Chehab 3249a0bf528SMauro Carvalho Chehab dprintk("pll tune band=%d, pll=%d\n", f_switch, (int)f_offset); 3259a0bf528SMauro Carvalho Chehab 3269a0bf528SMauro Carvalho Chehab return 0; 3279a0bf528SMauro Carvalho Chehab } 3289a0bf528SMauro Carvalho Chehab 3299a0bf528SMauro Carvalho Chehab static int s921_initfe(struct dvb_frontend *fe) 3309a0bf528SMauro Carvalho Chehab { 3319a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 3329a0bf528SMauro Carvalho Chehab int rc; 3339a0bf528SMauro Carvalho Chehab 3349a0bf528SMauro Carvalho Chehab dprintk("\n"); 3359a0bf528SMauro Carvalho Chehab 3369a0bf528SMauro Carvalho Chehab rc = s921_writeregdata(state, s921_init); 3379a0bf528SMauro Carvalho Chehab if (rc < 0) 3389a0bf528SMauro Carvalho Chehab return rc; 3399a0bf528SMauro Carvalho Chehab 3409a0bf528SMauro Carvalho Chehab return 0; 3419a0bf528SMauro Carvalho Chehab } 3429a0bf528SMauro Carvalho Chehab 3430df289a2SMauro Carvalho Chehab static int s921_read_status(struct dvb_frontend *fe, enum fe_status *status) 3449a0bf528SMauro Carvalho Chehab { 3459a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 3469a0bf528SMauro Carvalho Chehab int regstatus, rc; 3479a0bf528SMauro Carvalho Chehab 3489a0bf528SMauro Carvalho Chehab *status = 0; 3499a0bf528SMauro Carvalho Chehab 3509a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x81); 3519a0bf528SMauro Carvalho Chehab if (rc < 0) 3529a0bf528SMauro Carvalho Chehab return rc; 3539a0bf528SMauro Carvalho Chehab 3549a0bf528SMauro Carvalho Chehab regstatus = rc << 8; 3559a0bf528SMauro Carvalho Chehab 3569a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x82); 3579a0bf528SMauro Carvalho Chehab if (rc < 0) 3589a0bf528SMauro Carvalho Chehab return rc; 3599a0bf528SMauro Carvalho Chehab 3609a0bf528SMauro Carvalho Chehab regstatus |= rc; 3619a0bf528SMauro Carvalho Chehab 3629a0bf528SMauro Carvalho Chehab dprintk("status = %04x\n", regstatus); 3639a0bf528SMauro Carvalho Chehab 3649a0bf528SMauro Carvalho Chehab /* Full Sync - We don't know what each bit means on regs 0x81/0x82 */ 3659a0bf528SMauro Carvalho Chehab if ((regstatus & 0xff) == 0x40) { 3669a0bf528SMauro Carvalho Chehab *status = FE_HAS_SIGNAL | 3679a0bf528SMauro Carvalho Chehab FE_HAS_CARRIER | 3689a0bf528SMauro Carvalho Chehab FE_HAS_VITERBI | 3699a0bf528SMauro Carvalho Chehab FE_HAS_SYNC | 3709a0bf528SMauro Carvalho Chehab FE_HAS_LOCK; 3719a0bf528SMauro Carvalho Chehab } else if (regstatus & 0x40) { 3729a0bf528SMauro Carvalho Chehab /* This is close to Full Sync, but not enough to get useful info */ 3739a0bf528SMauro Carvalho Chehab *status = FE_HAS_SIGNAL | 3749a0bf528SMauro Carvalho Chehab FE_HAS_CARRIER | 3759a0bf528SMauro Carvalho Chehab FE_HAS_VITERBI | 3769a0bf528SMauro Carvalho Chehab FE_HAS_SYNC; 3779a0bf528SMauro Carvalho Chehab } 3789a0bf528SMauro Carvalho Chehab 3799a0bf528SMauro Carvalho Chehab return 0; 3809a0bf528SMauro Carvalho Chehab } 3819a0bf528SMauro Carvalho Chehab 3829a0bf528SMauro Carvalho Chehab static int s921_read_signal_strength(struct dvb_frontend *fe, u16 *strength) 3839a0bf528SMauro Carvalho Chehab { 3840df289a2SMauro Carvalho Chehab enum fe_status status; 3859a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 3869a0bf528SMauro Carvalho Chehab int rc; 3879a0bf528SMauro Carvalho Chehab 3889a0bf528SMauro Carvalho Chehab /* FIXME: Use the proper register for it... 0x80? */ 3899a0bf528SMauro Carvalho Chehab rc = s921_read_status(fe, &status); 3909a0bf528SMauro Carvalho Chehab if (rc < 0) 3919a0bf528SMauro Carvalho Chehab return rc; 3929a0bf528SMauro Carvalho Chehab 3939a0bf528SMauro Carvalho Chehab *strength = (status & FE_HAS_LOCK) ? 0xffff : 0; 3949a0bf528SMauro Carvalho Chehab 3959a0bf528SMauro Carvalho Chehab dprintk("strength = 0x%04x\n", *strength); 3969a0bf528SMauro Carvalho Chehab 3979a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x01); 3989a0bf528SMauro Carvalho Chehab dprintk("status 0x01: %02x\n", rc); 3999a0bf528SMauro Carvalho Chehab 4009a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x80); 4019a0bf528SMauro Carvalho Chehab dprintk("status 0x80: %02x\n", rc); 4029a0bf528SMauro Carvalho Chehab 4039a0bf528SMauro Carvalho Chehab rc = s921_readreg(state, 0x32); 4049a0bf528SMauro Carvalho Chehab dprintk("status 0x32: %02x\n", rc); 4059a0bf528SMauro Carvalho Chehab 4069a0bf528SMauro Carvalho Chehab return 0; 4079a0bf528SMauro Carvalho Chehab } 4089a0bf528SMauro Carvalho Chehab 4099a0bf528SMauro Carvalho Chehab static int s921_set_frontend(struct dvb_frontend *fe) 4109a0bf528SMauro Carvalho Chehab { 4119a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *p = &fe->dtv_property_cache; 4129a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 4139a0bf528SMauro Carvalho Chehab int rc; 4149a0bf528SMauro Carvalho Chehab 4159a0bf528SMauro Carvalho Chehab dprintk("\n"); 4169a0bf528SMauro Carvalho Chehab 4179a0bf528SMauro Carvalho Chehab /* FIXME: We don't know how to use non-auto mode */ 4189a0bf528SMauro Carvalho Chehab 4199a0bf528SMauro Carvalho Chehab rc = s921_pll_tune(fe); 4209a0bf528SMauro Carvalho Chehab if (rc < 0) 4219a0bf528SMauro Carvalho Chehab return rc; 4229a0bf528SMauro Carvalho Chehab 4239a0bf528SMauro Carvalho Chehab state->currentfreq = p->frequency; 4249a0bf528SMauro Carvalho Chehab 4259a0bf528SMauro Carvalho Chehab return 0; 4269a0bf528SMauro Carvalho Chehab } 4279a0bf528SMauro Carvalho Chehab 4287e3e68bcSMauro Carvalho Chehab static int s921_get_frontend(struct dvb_frontend *fe, 4297e3e68bcSMauro Carvalho Chehab struct dtv_frontend_properties *p) 4309a0bf528SMauro Carvalho Chehab { 4319a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 4329a0bf528SMauro Carvalho Chehab 4339a0bf528SMauro Carvalho Chehab /* FIXME: Probably it is possible to get it from regs f1 and f2 */ 4349a0bf528SMauro Carvalho Chehab p->frequency = state->currentfreq; 4359a0bf528SMauro Carvalho Chehab p->delivery_system = SYS_ISDBT; 4369a0bf528SMauro Carvalho Chehab 4379a0bf528SMauro Carvalho Chehab return 0; 4389a0bf528SMauro Carvalho Chehab } 4399a0bf528SMauro Carvalho Chehab 4409a0bf528SMauro Carvalho Chehab static int s921_tune(struct dvb_frontend *fe, 4419a0bf528SMauro Carvalho Chehab bool re_tune, 4429a0bf528SMauro Carvalho Chehab unsigned int mode_flags, 4439a0bf528SMauro Carvalho Chehab unsigned int *delay, 4440df289a2SMauro Carvalho Chehab enum fe_status *status) 4459a0bf528SMauro Carvalho Chehab { 4469a0bf528SMauro Carvalho Chehab int rc = 0; 4479a0bf528SMauro Carvalho Chehab 4489a0bf528SMauro Carvalho Chehab dprintk("\n"); 4499a0bf528SMauro Carvalho Chehab 4509a0bf528SMauro Carvalho Chehab if (re_tune) 4519a0bf528SMauro Carvalho Chehab rc = s921_set_frontend(fe); 4529a0bf528SMauro Carvalho Chehab 4539a0bf528SMauro Carvalho Chehab if (!(mode_flags & FE_TUNE_MODE_ONESHOT)) 4549a0bf528SMauro Carvalho Chehab s921_read_status(fe, status); 4559a0bf528SMauro Carvalho Chehab 4569a0bf528SMauro Carvalho Chehab return rc; 4579a0bf528SMauro Carvalho Chehab } 4589a0bf528SMauro Carvalho Chehab 4598d718e53SLuc Van Oostenryck static enum dvbfe_algo s921_get_algo(struct dvb_frontend *fe) 4609a0bf528SMauro Carvalho Chehab { 46127460adcSMauro Carvalho Chehab return DVBFE_ALGO_HW; 4629a0bf528SMauro Carvalho Chehab } 4639a0bf528SMauro Carvalho Chehab 4649a0bf528SMauro Carvalho Chehab static void s921_release(struct dvb_frontend *fe) 4659a0bf528SMauro Carvalho Chehab { 4669a0bf528SMauro Carvalho Chehab struct s921_state *state = fe->demodulator_priv; 4679a0bf528SMauro Carvalho Chehab 4689a0bf528SMauro Carvalho Chehab dprintk("\n"); 4699a0bf528SMauro Carvalho Chehab kfree(state); 4709a0bf528SMauro Carvalho Chehab } 4719a0bf528SMauro Carvalho Chehab 472bd336e63SMax Kellermann static const struct dvb_frontend_ops s921_ops; 4739a0bf528SMauro Carvalho Chehab 4749a0bf528SMauro Carvalho Chehab struct dvb_frontend *s921_attach(const struct s921_config *config, 4759a0bf528SMauro Carvalho Chehab struct i2c_adapter *i2c) 4769a0bf528SMauro Carvalho Chehab { 4779a0bf528SMauro Carvalho Chehab /* allocate memory for the internal state */ 4789a0bf528SMauro Carvalho Chehab struct s921_state *state = 4799a0bf528SMauro Carvalho Chehab kzalloc(sizeof(struct s921_state), GFP_KERNEL); 4809a0bf528SMauro Carvalho Chehab 4819a0bf528SMauro Carvalho Chehab dprintk("\n"); 4824a0543eeSPeter Senna Tschudin if (!state) { 4839a0bf528SMauro Carvalho Chehab rc("Unable to kzalloc\n"); 4844a0543eeSPeter Senna Tschudin return NULL; 4859a0bf528SMauro Carvalho Chehab } 4869a0bf528SMauro Carvalho Chehab 4879a0bf528SMauro Carvalho Chehab /* setup the state */ 4889a0bf528SMauro Carvalho Chehab state->config = config; 4899a0bf528SMauro Carvalho Chehab state->i2c = i2c; 4909a0bf528SMauro Carvalho Chehab 4919a0bf528SMauro Carvalho Chehab /* create dvb_frontend */ 4929a0bf528SMauro Carvalho Chehab memcpy(&state->frontend.ops, &s921_ops, 4939a0bf528SMauro Carvalho Chehab sizeof(struct dvb_frontend_ops)); 4949a0bf528SMauro Carvalho Chehab state->frontend.demodulator_priv = state; 4959a0bf528SMauro Carvalho Chehab 4969a0bf528SMauro Carvalho Chehab return &state->frontend; 4979a0bf528SMauro Carvalho Chehab } 4989a0bf528SMauro Carvalho Chehab EXPORT_SYMBOL(s921_attach); 4999a0bf528SMauro Carvalho Chehab 500bd336e63SMax Kellermann static const struct dvb_frontend_ops s921_ops = { 5019a0bf528SMauro Carvalho Chehab .delsys = { SYS_ISDBT }, 5029a0bf528SMauro Carvalho Chehab /* Use dib8000 values per default */ 5039a0bf528SMauro Carvalho Chehab .info = { 5049a0bf528SMauro Carvalho Chehab .name = "Sharp S921", 505f1b1eabfSMauro Carvalho Chehab .frequency_min_hz = 470 * MHz, 5069a0bf528SMauro Carvalho Chehab /* 5079a0bf528SMauro Carvalho Chehab * Max should be 770MHz instead, according with Sharp docs, 5089a0bf528SMauro Carvalho Chehab * but Leadership doc says it works up to 806 MHz. This is 5099a0bf528SMauro Carvalho Chehab * required to get channel 69, used in Brazil 5109a0bf528SMauro Carvalho Chehab */ 511f1b1eabfSMauro Carvalho Chehab .frequency_max_hz = 806 * MHz, 5129a0bf528SMauro Carvalho Chehab .caps = FE_CAN_INVERSION_AUTO | 5139a0bf528SMauro Carvalho Chehab FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 5149a0bf528SMauro Carvalho Chehab FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 5159a0bf528SMauro Carvalho Chehab FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | 5169a0bf528SMauro Carvalho Chehab FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | 5179a0bf528SMauro Carvalho Chehab FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | 5189a0bf528SMauro Carvalho Chehab FE_CAN_HIERARCHY_AUTO, 5199a0bf528SMauro Carvalho Chehab }, 5209a0bf528SMauro Carvalho Chehab 5219a0bf528SMauro Carvalho Chehab .release = s921_release, 5229a0bf528SMauro Carvalho Chehab 5239a0bf528SMauro Carvalho Chehab .init = s921_initfe, 5249a0bf528SMauro Carvalho Chehab .set_frontend = s921_set_frontend, 5259a0bf528SMauro Carvalho Chehab .get_frontend = s921_get_frontend, 5269a0bf528SMauro Carvalho Chehab .read_status = s921_read_status, 5279a0bf528SMauro Carvalho Chehab .read_signal_strength = s921_read_signal_strength, 5289a0bf528SMauro Carvalho Chehab .tune = s921_tune, 5299a0bf528SMauro Carvalho Chehab .get_frontend_algo = s921_get_algo, 5309a0bf528SMauro Carvalho Chehab }; 5319a0bf528SMauro Carvalho Chehab 5329a0bf528SMauro Carvalho Chehab MODULE_DESCRIPTION("DVB Frontend module for Sharp S921 hardware"); 53337e59f87SMauro Carvalho Chehab MODULE_AUTHOR("Mauro Carvalho Chehab"); 5349a0bf528SMauro Carvalho Chehab MODULE_AUTHOR("Douglas Landgraf <dougsland@redhat.com>"); 5359a0bf528SMauro Carvalho Chehab MODULE_LICENSE("GPL"); 536