+++ /dev/null
-/*
- * Driver for Micronas drx397xD demodulator
- *
- * Copyright (C) 2007 Henk Vergonet <Henk.Vergonet@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define DEBUG /* uncomment if you want debugging output */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/firmware.h>
-#include <linux/slab.h>
-#include <asm/div64.h>
-
-#include "dvb_frontend.h"
-#include "drx397xD.h"
-
-static const char mod_name[] = "drx397xD";
-
-#define MAX_CLOCK_DRIFT 200 /* maximal 200 PPM allowed */
-
-#define F_SET_0D0h 1
-#define F_SET_0D4h 2
-
-enum fw_ix {
-#define _FW_ENTRY(a, b, c) b
-#include "drx397xD_fw.h"
-};
-
-/* chip specifics */
-struct drx397xD_state {
- struct i2c_adapter *i2c;
- struct dvb_frontend frontend;
- struct drx397xD_config config;
- enum fw_ix chip_rev;
- int flags;
- u32 bandwidth_parm; /* internal bandwidth conversions */
- u32 f_osc; /* w90: actual osc frequency [Hz] */
-};
-
-/* Firmware */
-static const char *blob_name[] = {
-#define _BLOB_ENTRY(a, b) a
-#include "drx397xD_fw.h"
-};
-
-enum blob_ix {
-#define _BLOB_ENTRY(a, b) b
-#include "drx397xD_fw.h"
-};
-
-static struct {
- const char *name;
- const struct firmware *file;
- rwlock_t lock;
- int refcnt;
- const u8 *data[ARRAY_SIZE(blob_name)];
-} fw[] = {
-#define _FW_ENTRY(a, b, c) { \
- .name = a, \
- .file = NULL, \
- .lock = __RW_LOCK_UNLOCKED(fw[c].lock), \
- .refcnt = 0, \
- .data = { } }
-#include "drx397xD_fw.h"
-};
-
-/* use only with writer lock acquired */
-static void _drx_release_fw(struct drx397xD_state *s, enum fw_ix ix)
-{
- memset(&fw[ix].data[0], 0, sizeof(fw[0].data));
- if (fw[ix].file)
- release_firmware(fw[ix].file);
-}
-
-static void drx_release_fw(struct drx397xD_state *s)
-{
- enum fw_ix ix = s->chip_rev;
-
- pr_debug("%s\n", __func__);
-
- write_lock(&fw[ix].lock);
- if (fw[ix].refcnt) {
- fw[ix].refcnt--;
- if (fw[ix].refcnt == 0)
- _drx_release_fw(s, ix);
- }
- write_unlock(&fw[ix].lock);
-}
-
-static int drx_load_fw(struct drx397xD_state *s, enum fw_ix ix)
-{
- const u8 *data;
- size_t size, len;
- int i = 0, j, rc = -EINVAL;
-
- pr_debug("%s\n", __func__);
-
- if (ix < 0 || ix >= ARRAY_SIZE(fw))
- return -EINVAL;
- s->chip_rev = ix;
-
- write_lock(&fw[ix].lock);
- if (fw[ix].file) {
- rc = 0;
- goto exit_ok;
- }
- memset(&fw[ix].data[0], 0, sizeof(fw[0].data));
-
- rc = request_firmware(&fw[ix].file, fw[ix].name, s->i2c->dev.parent);
- if (rc != 0) {
- printk(KERN_ERR "%s: Firmware \"%s\" not available\n",
- mod_name, fw[ix].name);
- goto exit_err;
- }
-
- if (!fw[ix].file->data || fw[ix].file->size < 10)
- goto exit_corrupt;
-
- data = fw[ix].file->data;
- size = fw[ix].file->size;
-
- if (data[i++] != 2) /* check firmware version */
- goto exit_corrupt;
-
- do {
- switch (data[i++]) {
- case 0x00: /* bytecode */
- if (i >= size)
- break;
- i += data[i];
- case 0x01: /* reset */
- case 0x02: /* sleep */
- i++;
- break;
- case 0xfe: /* name */
- len = strnlen(&data[i], size - i);
- if (i + len + 1 >= size)
- goto exit_corrupt;
- if (data[i + len + 1] != 0)
- goto exit_corrupt;
- for (j = 0; j < ARRAY_SIZE(blob_name); j++) {
- if (strcmp(blob_name[j], &data[i]) == 0) {
- fw[ix].data[j] = &data[i + len + 1];
- pr_debug("Loading %s\n", blob_name[j]);
- }
- }
- i += len + 1;
- break;
- case 0xff: /* file terminator */
- if (i == size) {
- rc = 0;
- goto exit_ok;
- }
- default:
- goto exit_corrupt;
- }
- } while (i < size);
-
-exit_corrupt:
- printk(KERN_ERR "%s: Firmware is corrupt\n", mod_name);
-exit_err:
- _drx_release_fw(s, ix);
- fw[ix].refcnt--;
-exit_ok:
- fw[ix].refcnt++;
- write_unlock(&fw[ix].lock);
-
- return rc;
-}
-
-/* i2c bus IO */
-static int write_fw(struct drx397xD_state *s, enum blob_ix ix)
-{
- const u8 *data;
- int len, rc = 0, i = 0;
- struct i2c_msg msg = {
- .addr = s->config.demod_address,
- .flags = 0
- };
-
- if (ix < 0 || ix >= ARRAY_SIZE(blob_name)) {
- pr_debug("%s drx_fw_ix_t out of range\n", __func__);
- return -EINVAL;
- }
- pr_debug("%s %s\n", __func__, blob_name[ix]);
-
- read_lock(&fw[s->chip_rev].lock);
- data = fw[s->chip_rev].data[ix];
- if (!data) {
- rc = -EINVAL;
- goto exit_rc;
- }
-
- for (;;) {
- switch (data[i++]) {
- case 0: /* bytecode */
- len = data[i++];
- msg.len = len;
- msg.buf = (__u8 *) &data[i];
- if (i2c_transfer(s->i2c, &msg, 1) != 1) {
- rc = -EIO;
- goto exit_rc;
- }
- i += len;
- break;
- case 1: /* reset */
- case 2: /* sleep */
- i++;
- break;
- default:
- goto exit_rc;
- }
- }
-exit_rc:
- read_unlock(&fw[s->chip_rev].lock);
-
- return rc;
-}
-
-/* Function is not endian safe, use the RD16 wrapper below */
-static int _read16(struct drx397xD_state *s, __le32 i2c_adr)
-{
- int rc;
- u8 a[4];
- __le16 v;
- struct i2c_msg msg[2] = {
- {
- .addr = s->config.demod_address,
- .flags = 0,
- .buf = a,
- .len = sizeof(a)
- }, {
- .addr = s->config.demod_address,
- .flags = I2C_M_RD,
- .buf = (u8 *)&v,
- .len = sizeof(v)
- }
- };
-
- *(__le32 *) a = i2c_adr;
-
- rc = i2c_transfer(s->i2c, msg, 2);
- if (rc != 2)
- return -EIO;
-
- return le16_to_cpu(v);
-}
-
-/* Function is not endian safe, use the WR16.. wrappers below */
-static int _write16(struct drx397xD_state *s, __le32 i2c_adr, __le16 val)
-{
- u8 a[6];
- int rc;
- struct i2c_msg msg = {
- .addr = s->config.demod_address,
- .flags = 0,
- .buf = a,
- .len = sizeof(a)
- };
-
- *(__le32 *)a = i2c_adr;
- *(__le16 *)&a[4] = val;
-
- rc = i2c_transfer(s->i2c, &msg, 1);
- if (rc != 1)
- return -EIO;
-
- return 0;
-}
-
-#define WR16(ss, adr, val) \
- _write16(ss, I2C_ADR_C0(adr), cpu_to_le16(val))
-#define WR16_E0(ss, adr, val) \
- _write16(ss, I2C_ADR_E0(adr), cpu_to_le16(val))
-#define RD16(ss, adr) \
- _read16(ss, I2C_ADR_C0(adr))
-
-#define EXIT_RC(cmd) \
- if ((rc = (cmd)) < 0) \
- goto exit_rc
-
-/* Tuner callback */
-static int PLL_Set(struct drx397xD_state *s,
- struct dvb_frontend_parameters *fep, int *df_tuner)
-{
- struct dvb_frontend *fe = &s->frontend;
- u32 f_tuner, f = fep->frequency;
- int rc;
-
- pr_debug("%s\n", __func__);
-
- if ((f > s->frontend.ops.tuner_ops.info.frequency_max) ||
- (f < s->frontend.ops.tuner_ops.info.frequency_min))
- return -EINVAL;
-
- *df_tuner = 0;
- if (!s->frontend.ops.tuner_ops.set_params ||
- !s->frontend.ops.tuner_ops.get_frequency)
- return -ENOSYS;
-
- rc = s->frontend.ops.tuner_ops.set_params(fe, fep);
- if (rc < 0)
- return rc;
-
- rc = s->frontend.ops.tuner_ops.get_frequency(fe, &f_tuner);
- if (rc < 0)
- return rc;
-
- *df_tuner = f_tuner - f;
- pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __func__, f,
- f_tuner);
-
- return 0;
-}
-
-/* Demodulator helper functions */
-static int SC_WaitForReady(struct drx397xD_state *s)
-{
- int cnt = 1000;
- int rc;
-
- pr_debug("%s\n", __func__);
-
- while (cnt--) {
- rc = RD16(s, 0x820043);
- if (rc == 0)
- return 0;
- }
-
- return -1;
-}
-
-static int SC_SendCommand(struct drx397xD_state *s, int cmd)
-{
- int rc;
-
- pr_debug("%s\n", __func__);
-
- WR16(s, 0x820043, cmd);
- SC_WaitForReady(s);
- rc = RD16(s, 0x820042);
- if ((rc & 0xffff) == 0xffff)
- return -1;
-
- return 0;
-}
-
-static int HI_Command(struct drx397xD_state *s, u16 cmd)
-{
- int rc, cnt = 1000;
-
- pr_debug("%s\n", __func__);
-
- rc = WR16(s, 0x420032, cmd);
- if (rc < 0)
- return rc;
-
- do {
- rc = RD16(s, 0x420032);
- if (rc == 0) {
- rc = RD16(s, 0x420031);
- return rc;
- }
- if (rc < 0)
- return rc;
- } while (--cnt);
-
- return rc;
-}
-
-static int HI_CfgCommand(struct drx397xD_state *s)
-{
-
- pr_debug("%s\n", __func__);
-
- WR16(s, 0x420033, 0x3973);
- WR16(s, 0x420034, s->config.w50); /* code 4, log 4 */
- WR16(s, 0x420035, s->config.w52); /* code 15, log 9 */
- WR16(s, 0x420036, s->config.demod_address << 1);
- WR16(s, 0x420037, s->config.w56); /* code (set_i2c ?? initX 1 ), log 1 */
- /* WR16(s, 0x420033, 0x3973); */
- if ((s->config.w56 & 8) == 0)
- return HI_Command(s, 3);
-
- return WR16(s, 0x420032, 0x3);
-}
-
-static const u8 fastIncrDecLUT_15273[] = {
- 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14,
- 0x15, 0x16, 0x17, 0x18, 0x1a, 0x1b, 0x1c, 0x1d, 0x1f
-};
-
-static const u8 slowIncrDecLUT_15272[] = {
- 3, 4, 4, 5, 6
-};
-
-static int SetCfgIfAgc(struct drx397xD_state *s, struct drx397xD_CfgIfAgc *agc)
-{
- u16 w06 = agc->w06;
- u16 w08 = agc->w08;
- u16 w0A = agc->w0A;
- u16 w0C = agc->w0C;
- int quot, rem, i, rc = -EINVAL;
-
- pr_debug("%s\n", __func__);
-
- if (agc->w04 > 0x3ff)
- goto exit_rc;
-
- if (agc->d00 == 1) {
- EXIT_RC(RD16(s, 0x0c20010));
- rc &= ~0x10;
- EXIT_RC(WR16(s, 0x0c20010, rc));
- return WR16(s, 0x0c20030, agc->w04 & 0x7ff);
- }
-
- if (agc->d00 != 0)
- goto exit_rc;
- if (w0A < w08)
- goto exit_rc;
- if (w0A > 0x3ff)
- goto exit_rc;
- if (w0C > 0x3ff)
- goto exit_rc;
- if (w06 > 0x3ff)
- goto exit_rc;
-
- EXIT_RC(RD16(s, 0x0c20010));
- rc |= 0x10;
- EXIT_RC(WR16(s, 0x0c20010, rc));
-
- EXIT_RC(WR16(s, 0x0c20025, (w06 >> 1) & 0x1ff));
- EXIT_RC(WR16(s, 0x0c20031, (w0A - w08) >> 1));
- EXIT_RC(WR16(s, 0x0c20032, ((w0A + w08) >> 1) - 0x1ff));
-
- quot = w0C / 113;
- rem = w0C % 113;
- if (quot <= 8) {
- quot = 8 - quot;
- } else {
- quot = 0;
- rem += 113;
- }
-
- EXIT_RC(WR16(s, 0x0c20024, quot));
-
- i = fastIncrDecLUT_15273[rem / 8];
- EXIT_RC(WR16(s, 0x0c2002d, i));
- EXIT_RC(WR16(s, 0x0c2002e, i));
-
- i = slowIncrDecLUT_15272[rem / 28];
- EXIT_RC(WR16(s, 0x0c2002b, i));
- rc = WR16(s, 0x0c2002c, i);
-exit_rc:
- return rc;
-}
-
-static int SetCfgRfAgc(struct drx397xD_state *s, struct drx397xD_CfgRfAgc *agc)
-{
- u16 w04 = agc->w04;
- u16 w06 = agc->w06;
- int rc = -1;
-
- pr_debug("%s %d 0x%x 0x%x\n", __func__, agc->d00, w04, w06);
-
- if (w04 > 0x3ff)
- goto exit_rc;
-
- switch (agc->d00) {
- case 1:
- if (w04 == 0x3ff)
- w04 = 0x400;
-
- EXIT_RC(WR16(s, 0x0c20036, w04));
- s->config.w9C &= ~2;
- EXIT_RC(WR16(s, 0x0c20015, s->config.w9C));
- EXIT_RC(RD16(s, 0x0c20010));
- rc &= 0xbfdf;
- EXIT_RC(WR16(s, 0x0c20010, rc));
- EXIT_RC(RD16(s, 0x0c20013));
- rc &= ~2;
- break;
- case 0:
- /* loc_8000659 */
- s->config.w9C &= ~2;
- EXIT_RC(WR16(s, 0x0c20015, s->config.w9C));
- EXIT_RC(RD16(s, 0x0c20010));
- rc &= 0xbfdf;
- rc |= 0x4000;
- EXIT_RC(WR16(s, 0x0c20010, rc));
- EXIT_RC(WR16(s, 0x0c20051, (w06 >> 4) & 0x3f));
- EXIT_RC(RD16(s, 0x0c20013));
- rc &= ~2;
- break;
- default:
- s->config.w9C |= 2;
- EXIT_RC(WR16(s, 0x0c20015, s->config.w9C));
- EXIT_RC(RD16(s, 0x0c20010));
- rc &= 0xbfdf;
- EXIT_RC(WR16(s, 0x0c20010, rc));
-
- EXIT_RC(WR16(s, 0x0c20036, 0));
-
- EXIT_RC(RD16(s, 0x0c20013));
- rc |= 2;
- }
- rc = WR16(s, 0x0c20013, rc);
-
-exit_rc:
- return rc;
-}
-
-static int GetLockStatus(struct drx397xD_state *s, int *lockstat)
-{
- int rc;
-
- *lockstat = 0;
-
- rc = RD16(s, 0x082004b);
- if (rc < 0)
- return rc;
-
- if (s->config.d60 != 2)
- return 0;
-
- if ((rc & 7) == 7)
- *lockstat |= 1;
- if ((rc & 3) == 3)
- *lockstat |= 2;
- if (rc & 1)
- *lockstat |= 4;
- return 0;
-}
-
-static int CorrectSysClockDeviation(struct drx397xD_state *s)
-{
- int rc = -EINVAL;
- int lockstat;
- u32 clk, clk_limit;
-
- pr_debug("%s\n", __func__);
-
- if (s->config.d5C == 0) {
- EXIT_RC(WR16(s, 0x08200e8, 0x010));
- EXIT_RC(WR16(s, 0x08200e9, 0x113));
- s->config.d5C = 1;
- return rc;
- }
- if (s->config.d5C != 1)
- goto exit_rc;
-
- rc = RD16(s, 0x0820048);
-
- rc = GetLockStatus(s, &lockstat);
- if (rc < 0)
- goto exit_rc;
- if ((lockstat & 1) == 0)
- goto exit_rc;
-
- EXIT_RC(WR16(s, 0x0420033, 0x200));
- EXIT_RC(WR16(s, 0x0420034, 0xc5));
- EXIT_RC(WR16(s, 0x0420035, 0x10));
- EXIT_RC(WR16(s, 0x0420036, 0x1));
- EXIT_RC(WR16(s, 0x0420037, 0xa));
- EXIT_RC(HI_Command(s, 6));
- EXIT_RC(RD16(s, 0x0420040));
- clk = rc;
- EXIT_RC(RD16(s, 0x0420041));
- clk |= rc << 16;
-
- if (clk <= 0x26ffff)
- goto exit_rc;
- if (clk > 0x610000)
- goto exit_rc;
-
- if (!s->bandwidth_parm)
- return -EINVAL;
-
- /* round & convert to Hz */
- clk = ((u64) (clk + 0x800000) * s->bandwidth_parm + (1 << 20)) >> 21;
- clk_limit = s->config.f_osc * MAX_CLOCK_DRIFT / 1000;
-
- if (clk - s->config.f_osc * 1000 + clk_limit <= 2 * clk_limit) {
- s->f_osc = clk;
- pr_debug("%s: osc %d %d [Hz]\n", __func__,
- s->config.f_osc * 1000, clk - s->config.f_osc * 1000);
- }
- rc = WR16(s, 0x08200e8, 0);
-
-exit_rc:
- return rc;
-}
-
-static int ConfigureMPEGOutput(struct drx397xD_state *s, int type)
-{
- int rc, si, bp;
-
- pr_debug("%s\n", __func__);
-
- si = s->config.wA0;
- if (s->config.w98 == 0) {
- si |= 1;
- bp = 0;
- } else {
- si &= ~1;
- bp = 0x200;
- }
- if (s->config.w9A == 0)
- si |= 0x80;
- else
- si &= ~0x80;
-
- EXIT_RC(WR16(s, 0x2150045, 0));
- EXIT_RC(WR16(s, 0x2150010, si));
- EXIT_RC(WR16(s, 0x2150011, bp));
- rc = WR16(s, 0x2150012, (type == 0 ? 0xfff : 0));
-
-exit_rc:
- return rc;
-}
-
-static int drx_tune(struct drx397xD_state *s,
- struct dvb_frontend_parameters *fep)
-{
- u16 v22 = 0;
- u16 v1C = 0;
- u16 v1A = 0;
- u16 v18 = 0;
- u32 edi = 0, ebx = 0, ebp = 0, edx = 0;
- u16 v20 = 0, v1E = 0, v16 = 0, v14 = 0, v12 = 0, v10 = 0, v0E = 0;
-
- int rc, df_tuner = 0;
- int a, b, c, d;
- pr_debug("%s %d\n", __func__, s->config.d60);
-
- if (s->config.d60 != 2)
- goto set_tuner;
- rc = CorrectSysClockDeviation(s);
- if (rc < 0)
- goto set_tuner;
-
- s->config.d60 = 1;
- rc = ConfigureMPEGOutput(s, 0);
- if (rc < 0)
- goto set_tuner;
-set_tuner:
-
- rc = PLL_Set(s, fep, &df_tuner);
- if (rc < 0) {
- printk(KERN_ERR "Error in pll_set\n");
- goto exit_rc;
- }
- msleep(200);
-
- a = rc = RD16(s, 0x2150016);
- if (rc < 0)
- goto exit_rc;
- b = rc = RD16(s, 0x2150010);
- if (rc < 0)
- goto exit_rc;
- c = rc = RD16(s, 0x2150034);
- if (rc < 0)
- goto exit_rc;
- d = rc = RD16(s, 0x2150035);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2150014, c);
- rc = WR16(s, 0x2150015, d);
- rc = WR16(s, 0x2150010, 0);
- rc = WR16(s, 0x2150000, 2);
- rc = WR16(s, 0x2150036, 0x0fff);
- rc = WR16(s, 0x2150016, a);
-
- rc = WR16(s, 0x2150010, 2);
- rc = WR16(s, 0x2150007, 0);
- rc = WR16(s, 0x2150000, 1);
- rc = WR16(s, 0x2110000, 0);
- rc = WR16(s, 0x0800000, 0);
- rc = WR16(s, 0x2800000, 0);
- rc = WR16(s, 0x2110010, 0x664);
-
- rc = write_fw(s, DRXD_ResetECRAM);
- rc = WR16(s, 0x2110000, 1);
-
- rc = write_fw(s, DRXD_InitSC);
- if (rc < 0)
- goto exit_rc;
-
- rc = SetCfgIfAgc(s, &s->config.ifagc);
- if (rc < 0)
- goto exit_rc;
-
- rc = SetCfgRfAgc(s, &s->config.rfagc);
- if (rc < 0)
- goto exit_rc;
-
- if (fep->u.ofdm.transmission_mode != TRANSMISSION_MODE_2K)
- v22 = 1;
- switch (fep->u.ofdm.transmission_mode) {
- case TRANSMISSION_MODE_8K:
- edi = 1;
- if (s->chip_rev == DRXD_FW_B1)
- break;
-
- rc = WR16(s, 0x2010010, 0);
- if (rc < 0)
- break;
- v1C = 0x63;
- v1A = 0x53;
- v18 = 0x43;
- break;
- default:
- edi = 0;
- if (s->chip_rev == DRXD_FW_B1)
- break;
-
- rc = WR16(s, 0x2010010, 1);
- if (rc < 0)
- break;
-
- v1C = 0x61;
- v1A = 0x47;
- v18 = 0x41;
- }
-
- switch (fep->u.ofdm.guard_interval) {
- case GUARD_INTERVAL_1_4:
- edi |= 0x0c;
- break;
- case GUARD_INTERVAL_1_8:
- edi |= 0x08;
- break;
- case GUARD_INTERVAL_1_16:
- edi |= 0x04;
- break;
- case GUARD_INTERVAL_1_32:
- break;
- default:
- v22 |= 2;
- }
-
- ebx = 0;
- ebp = 0;
- v20 = 0;
- v1E = 0;
- v16 = 0;
- v14 = 0;
- v12 = 0;
- v10 = 0;
- v0E = 0;
-
- switch (fep->u.ofdm.hierarchy_information) {
- case HIERARCHY_1:
- edi |= 0x40;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x1c10047, 1);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010012, 1);
- if (rc < 0)
- goto exit_rc;
- ebx = 0x19f;
- ebp = 0x1fb;
- v20 = 0x0c0;
- v1E = 0x195;
- v16 = 0x1d6;
- v14 = 0x1ef;
- v12 = 4;
- v10 = 5;
- v0E = 5;
- break;
- case HIERARCHY_2:
- edi |= 0x80;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x1c10047, 2);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010012, 2);
- if (rc < 0)
- goto exit_rc;
- ebx = 0x08f;
- ebp = 0x12f;
- v20 = 0x0c0;
- v1E = 0x11e;
- v16 = 0x1d6;
- v14 = 0x15e;
- v12 = 4;
- v10 = 5;
- v0E = 5;
- break;
- case HIERARCHY_4:
- edi |= 0xc0;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x1c10047, 3);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010012, 3);
- if (rc < 0)
- goto exit_rc;
- ebx = 0x14d;
- ebp = 0x197;
- v20 = 0x0c0;
- v1E = 0x1ce;
- v16 = 0x1d6;
- v14 = 0x11a;
- v12 = 4;
- v10 = 6;
- v0E = 5;
- break;
- default:
- v22 |= 8;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x1c10047, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010012, 0);
- if (rc < 0)
- goto exit_rc;
- /* QPSK QAM16 QAM64 */
- ebx = 0x19f; /* 62 */
- ebp = 0x1fb; /* 15 */
- v20 = 0x16a; /* 62 */
- v1E = 0x195; /* 62 */
- v16 = 0x1bb; /* 15 */
- v14 = 0x1ef; /* 15 */
- v12 = 5; /* 16 */
- v10 = 5; /* 16 */
- v0E = 5; /* 16 */
- }
-
- switch (fep->u.ofdm.constellation) {
- default:
- v22 |= 4;
- case QPSK:
- if (s->chip_rev == DRXD_FW_B1)
- break;
-
- rc = WR16(s, 0x1c10046, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010011, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001a, 0x10);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001b, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001c, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10062, v20);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c1002a, v1C);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10015, v16);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10016, v12);
- if (rc < 0)
- goto exit_rc;
- break;
- case QAM_16:
- edi |= 0x10;
- if (s->chip_rev == DRXD_FW_B1)
- break;
-
- rc = WR16(s, 0x1c10046, 1);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010011, 1);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001a, 0x10);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001b, 4);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001c, 0);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10062, v1E);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c1002a, v1A);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10015, v14);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10016, v10);
- if (rc < 0)
- goto exit_rc;
- break;
- case QAM_64:
- edi |= 0x20;
- rc = WR16(s, 0x1c10046, 2);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x2010011, 2);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001a, 0x20);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001b, 8);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x201001c, 2);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10062, ebx);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c1002a, v18);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10015, ebp);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x1c10016, v0E);
- if (rc < 0)
- goto exit_rc;
- break;
- }
-
- if (s->config.s20d24 == 1) {
- rc = WR16(s, 0x2010013, 0);
- } else {
- rc = WR16(s, 0x2010013, 1);
- edi |= 0x1000;
- }
-
- switch (fep->u.ofdm.code_rate_HP) {
- default:
- v22 |= 0x10;
- case FEC_1_2:
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x2090011, 0);
- break;
- case FEC_2_3:
- edi |= 0x200;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x2090011, 1);
- break;
- case FEC_3_4:
- edi |= 0x400;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x2090011, 2);
- break;
- case FEC_5_6: /* 5 */
- edi |= 0x600;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x2090011, 3);
- break;
- case FEC_7_8: /* 7 */
- edi |= 0x800;
- if (s->chip_rev == DRXD_FW_B1)
- break;
- rc = WR16(s, 0x2090011, 4);
- break;
- };
- if (rc < 0)
- goto exit_rc;
-
- switch (fep->u.ofdm.bandwidth) {
- default:
- rc = -EINVAL;
- goto exit_rc;
- case BANDWIDTH_8_MHZ: /* 0 */
- case BANDWIDTH_AUTO:
- rc = WR16(s, 0x0c2003f, 0x32);
- s->bandwidth_parm = ebx = 0x8b8249;
- edx = 0;
- break;
- case BANDWIDTH_7_MHZ:
- rc = WR16(s, 0x0c2003f, 0x3b);
- s->bandwidth_parm = ebx = 0x7a1200;
- edx = 0x4807;
- break;
- case BANDWIDTH_6_MHZ:
- rc = WR16(s, 0x0c2003f, 0x47);
- s->bandwidth_parm = ebx = 0x68a1b6;
- edx = 0x0f07;
- break;
- };
-
- if (rc < 0)
- goto exit_rc;
-
- rc = WR16(s, 0x08200ec, edx);
- if (rc < 0)
- goto exit_rc;
-
- rc = RD16(s, 0x0820050);
- if (rc < 0)
- goto exit_rc;
- rc = WR16(s, 0x0820050, rc);
-
- {
- /* Configure bandwidth specific factor */
- ebx = div64_u64(((u64) (s->f_osc) << 21) + (ebx >> 1),
- (u64)ebx) - 0x800000;
- EXIT_RC(WR16(s, 0x0c50010, ebx & 0xffff));
- EXIT_RC(WR16(s, 0x0c50011, ebx >> 16));
-
- /* drx397xD oscillator calibration */
- ebx = div64_u64(((u64) (s->config.f_if + df_tuner) << 28) +
- (s->f_osc >> 1), (u64)s->f_osc);
- }
- ebx &= 0xfffffff;
- if (fep->inversion == INVERSION_ON)
- ebx = 0x10000000 - ebx;
-
- EXIT_RC(WR16(s, 0x0c30010, ebx & 0xffff));
- EXIT_RC(WR16(s, 0x0c30011, ebx >> 16));
-
- EXIT_RC(WR16(s, 0x0800000, 1));
- EXIT_RC(RD16(s, 0x0800000));
-
-
- EXIT_RC(SC_WaitForReady(s));
- EXIT_RC(WR16(s, 0x0820042, 0));
- EXIT_RC(WR16(s, 0x0820041, v22));
- EXIT_RC(WR16(s, 0x0820040, edi));
- EXIT_RC(SC_SendCommand(s, 3));
-
- rc = RD16(s, 0x0800000);
-
- SC_WaitForReady(s);
- WR16(s, 0x0820042, 0);
- WR16(s, 0x0820041, 1);
- WR16(s, 0x0820040, 1);
- SC_SendCommand(s, 1);
-
-
- rc = WR16(s, 0x2150000, 2);
- rc = WR16(s, 0x2150016, a);
- rc = WR16(s, 0x2150010, 4);
- rc = WR16(s, 0x2150036, 0);
- rc = WR16(s, 0x2150000, 1);
- s->config.d60 = 2;
-
-exit_rc:
- return rc;
-}
-
-/*******************************************************************************
- * DVB interface
- ******************************************************************************/
-
-static int drx397x_init(struct dvb_frontend *fe)
-{
- struct drx397xD_state *s = fe->demodulator_priv;
- int rc;
-
- pr_debug("%s\n", __func__);
-
- s->config.rfagc.d00 = 2; /* 0x7c */
- s->config.rfagc.w04 = 0;
- s->config.rfagc.w06 = 0x3ff;
-
- s->config.ifagc.d00 = 0; /* 0x68 */
- s->config.ifagc.w04 = 0;
- s->config.ifagc.w06 = 140;
- s->config.ifagc.w08 = 0;
- s->config.ifagc.w0A = 0x3ff;
- s->config.ifagc.w0C = 0x388;
-
- /* for signal strength calculations */
- s->config.ss76 = 820;
- s->config.ss78 = 2200;
- s->config.ss7A = 150;
-
- /* HI_CfgCommand */
- s->config.w50 = 4;
- s->config.w52 = 9;
-
- s->config.f_if = 42800000; /* d14: intermediate frequency [Hz] */
- s->config.f_osc = 48000; /* s66 : oscillator frequency [kHz] */
- s->config.w92 = 12000;
-
- s->config.w9C = 0x000e;
- s->config.w9E = 0x0000;
-
- /* ConfigureMPEGOutput params */
- s->config.wA0 = 4;
- s->config.w98 = 1;
- s->config.w9A = 1;
-
- /* get chip revision */
- rc = RD16(s, 0x2410019);
- if (rc < 0)
- return -ENODEV;
-
- if (rc == 0) {
- printk(KERN_INFO "%s: chip revision A2\n", mod_name);
- rc = drx_load_fw(s, DRXD_FW_A2);
- } else {
-
- rc = (rc >> 12) - 3;
- switch (rc) {
- case 1:
- s->flags |= F_SET_0D4h;
- case 0:
- case 4:
- s->flags |= F_SET_0D0h;
- break;
- case 2:
- case 5:
- break;
- case 3:
- s->flags |= F_SET_0D4h;
- break;
- default:
- return -ENODEV;
- };
- printk(KERN_INFO "%s: chip revision B1.%d\n", mod_name, rc);
- rc = drx_load_fw(s, DRXD_FW_B1);
- }
- if (rc < 0)
- goto error;
-
- rc = WR16(s, 0x0420033, 0x3973);
- if (rc < 0)
- goto error;
-
- rc = HI_Command(s, 2);
-
- msleep(1);
-
- if (s->chip_rev == DRXD_FW_A2) {
- rc = WR16(s, 0x043012d, 0x47F);
- if (rc < 0)
- goto error;
- }
- rc = WR16_E0(s, 0x0400000, 0);
- if (rc < 0)
- goto error;
-
- if (s->config.w92 > 20000 || s->config.w92 % 4000) {
- printk(KERN_ERR "%s: invalid osc frequency\n", mod_name);
- rc = -1;
- goto error;
- }
-
- rc = WR16(s, 0x2410010, 1);
- if (rc < 0)
- goto error;
- rc = WR16(s, 0x2410011, 0x15);
- if (rc < 0)
- goto error;
- rc = WR16(s, 0x2410012, s->config.w92 / 4000);
- if (rc < 0)
- goto error;
-#ifdef ORIG_FW
- rc = WR16(s, 0x2410015, 2);
- if (rc < 0)
- goto error;
-#endif
- rc = WR16(s, 0x2410017, 0x3973);
- if (rc < 0)
- goto error;
-
- s->f_osc = s->config.f_osc * 1000; /* initial estimator */
-
- s->config.w56 = 1;
-
- rc = HI_CfgCommand(s);
- if (rc < 0)
- goto error;
-
- rc = write_fw(s, DRXD_InitAtomicRead);
- if (rc < 0)
- goto error;
-
- if (s->chip_rev == DRXD_FW_A2) {
- rc = WR16(s, 0x2150013, 0);
- if (rc < 0)
- goto error;
- }
-
- rc = WR16_E0(s, 0x0400002, 0);
- if (rc < 0)
- goto error;
- rc = WR16(s, 0x0400002, 0);
- if (rc < 0)
- goto error;
-
- if (s->chip_rev == DRXD_FW_A2) {
- rc = write_fw(s, DRXD_ResetCEFR);
- if (rc < 0)
- goto error;
- }
- rc = write_fw(s, DRXD_microcode);
- if (rc < 0)
- goto error;
-
- s->config.w9C = 0x0e;
- if (s->flags & F_SET_0D0h) {
- s->config.w9C = 0;
- rc = RD16(s, 0x0c20010);
- if (rc < 0)
- goto write_DRXD_InitFE_1;
-
- rc &= ~0x1000;
- rc = WR16(s, 0x0c20010, rc);
- if (rc < 0)
- goto write_DRXD_InitFE_1;
-
- rc = RD16(s, 0x0c20011);
- if (rc < 0)
- goto write_DRXD_InitFE_1;
-
- rc &= ~0x8;
- rc = WR16(s, 0x0c20011, rc);
- if (rc < 0)
- goto write_DRXD_InitFE_1;
-
- rc = WR16(s, 0x0c20012, 1);
- }
-
-write_DRXD_InitFE_1:
-
- rc = write_fw(s, DRXD_InitFE_1);
- if (rc < 0)
- goto error;
-
- rc = 1;
- if (s->chip_rev == DRXD_FW_B1) {
- if (s->flags & F_SET_0D0h)
- rc = 0;
- } else {
- if (s->flags & F_SET_0D0h)
- rc = 4;
- }
-
- rc = WR16(s, 0x0C20012, rc);
- if (rc < 0)
- goto error;
-
- rc = WR16(s, 0x0C20013, s->config.w9E);
- if (rc < 0)
- goto error;
- rc = WR16(s, 0x0C20015, s->config.w9C);
- if (rc < 0)
- goto error;
-
- rc = write_fw(s, DRXD_InitFE_2);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitFT);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitCP);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitCE);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitEQ);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitEC);
- if (rc < 0)
- goto error;
- rc = write_fw(s, DRXD_InitSC);
- if (rc < 0)
- goto error;
-
- rc = SetCfgIfAgc(s, &s->config.ifagc);
- if (rc < 0)
- goto error;
-
- rc = SetCfgRfAgc(s, &s->config.rfagc);
- if (rc < 0)
- goto error;
-
- rc = ConfigureMPEGOutput(s, 1);
- rc = WR16(s, 0x08201fe, 0x0017);
- rc = WR16(s, 0x08201ff, 0x0101);
-
- s->config.d5C = 0;
- s->config.d60 = 1;
- s->config.d48 = 1;
-
-error:
- return rc;
-}
-
-static int drx397x_get_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
-{
- return 0;
-}
-
-static int drx397x_set_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
-{
- struct drx397xD_state *s = fe->demodulator_priv;
-
- s->config.s20d24 = 1;
-
- return drx_tune(s, params);
-}
-
-static int drx397x_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings
- *fe_tune_settings)
-{
- fe_tune_settings->min_delay_ms = 10000;
- fe_tune_settings->step_size = 0;
- fe_tune_settings->max_drift = 0;
-
- return 0;
-}
-
-static int drx397x_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct drx397xD_state *s = fe->demodulator_priv;
- int lockstat;
-
- GetLockStatus(s, &lockstat);
-
- *status = 0;
- if (lockstat & 2) {
- CorrectSysClockDeviation(s);
- ConfigureMPEGOutput(s, 1);
- *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI;
- }
- if (lockstat & 4)
- *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
-
- return 0;
-}
-
-static int drx397x_read_ber(struct dvb_frontend *fe, unsigned int *ber)
-{
- *ber = 0;
-
- return 0;
-}
-
-static int drx397x_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- *snr = 0;
-
- return 0;
-}
-
-static int drx397x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
- struct drx397xD_state *s = fe->demodulator_priv;
- int rc;
-
- if (s->config.ifagc.d00 == 2) {
- *strength = 0xffff;
- return 0;
- }
- rc = RD16(s, 0x0c20035);
- if (rc < 0) {
- *strength = 0;
- return 0;
- }
- rc &= 0x3ff;
- /* Signal strength is calculated using the following formula:
- *
- * a = 2200 * 150 / (2200 + 150);
- * a = a * 3300 / (a + 820);
- * b = 2200 * 3300 / (2200 + 820);
- * c = (((b-a) * rc) >> 10 + a) << 4;
- * strength = ~c & 0xffff;
- *
- * The following does the same but with less rounding errors:
- */
- *strength = ~(7720 + (rc * 30744 >> 10));
-
- return 0;
-}
-
-static int drx397x_read_ucblocks(struct dvb_frontend *fe,
- unsigned int *ucblocks)
-{
- *ucblocks = 0;
-
- return 0;
-}
-
-static int drx397x_sleep(struct dvb_frontend *fe)
-{
- return 0;
-}
-
-static void drx397x_release(struct dvb_frontend *fe)
-{
- struct drx397xD_state *s = fe->demodulator_priv;
- printk(KERN_INFO "%s: release demodulator\n", mod_name);
- if (s) {
- drx_release_fw(s);
- kfree(s);
- }
-
-}
-
-static struct dvb_frontend_ops drx397x_ops = {
-
- .info = {
- .name = "Micronas DRX397xD DVB-T Frontend",
- .type = FE_OFDM,
- .frequency_min = 47125000,
- .frequency_max = 855250000,
- .frequency_stepsize = 166667,
- .frequency_tolerance = 0,
- .caps = /* 0x0C01B2EAE */
- FE_CAN_FEC_1_2 | /* = 0x2, */
- FE_CAN_FEC_2_3 | /* = 0x4, */
- FE_CAN_FEC_3_4 | /* = 0x8, */
- FE_CAN_FEC_5_6 | /* = 0x20, */
- FE_CAN_FEC_7_8 | /* = 0x80, */
- FE_CAN_FEC_AUTO | /* = 0x200, */
- FE_CAN_QPSK | /* = 0x400, */
- FE_CAN_QAM_16 | /* = 0x800, */
- FE_CAN_QAM_64 | /* = 0x2000, */
- FE_CAN_QAM_AUTO | /* = 0x10000, */
- FE_CAN_TRANSMISSION_MODE_AUTO | /* = 0x20000, */
- FE_CAN_GUARD_INTERVAL_AUTO | /* = 0x80000, */
- FE_CAN_HIERARCHY_AUTO | /* = 0x100000, */
- FE_CAN_RECOVER | /* = 0x40000000, */
- FE_CAN_MUTE_TS /* = 0x80000000 */
- },
-
- .release = drx397x_release,
- .init = drx397x_init,
- .sleep = drx397x_sleep,
-
- .set_frontend = drx397x_set_frontend,
- .get_tune_settings = drx397x_get_tune_settings,
- .get_frontend = drx397x_get_frontend,
-
- .read_status = drx397x_read_status,
- .read_snr = drx397x_read_snr,
- .read_signal_strength = drx397x_read_signal_strength,
- .read_ber = drx397x_read_ber,
- .read_ucblocks = drx397x_read_ucblocks,
-};
-
-struct dvb_frontend *drx397xD_attach(const struct drx397xD_config *config,
- struct i2c_adapter *i2c)
-{
- struct drx397xD_state *state;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct drx397xD_state), GFP_KERNEL);
- if (!state)
- goto error;
-
- /* setup the state */
- state->i2c = i2c;
- memcpy(&state->config, config, sizeof(struct drx397xD_config));
-
- /* check if the demod is there */
- if (RD16(state, 0x2410019) < 0)
- goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &drx397x_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- return &state->frontend;
-error:
- kfree(state);
-
- return NULL;
-}
-EXPORT_SYMBOL(drx397xD_attach);
-
-MODULE_DESCRIPTION("Micronas DRX397xD DVB-T Frontend");
-MODULE_AUTHOR("Henk Vergonet");
-MODULE_LICENSE("GPL");
-
projects / karo-tx-linux.git / commitdiff