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Diffstat (limited to 'drivers/media/dvb-frontends/tda10023.c')
-rw-r--r--drivers/media/dvb-frontends/tda10023.c597
1 files changed, 597 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/tda10023.c b/drivers/media/dvb-frontends/tda10023.c
new file mode 100644
index 000000000..4c2541ecd
--- /dev/null
+++ b/drivers/media/dvb-frontends/tda10023.c
@@ -0,0 +1,597 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ TDA10023 - DVB-C decoder
+ (as used in Philips CU1216-3 NIM and the Reelbox DVB-C tuner card)
+
+ Copyright (C) 2005 Georg Acher, BayCom GmbH (acher at baycom dot de)
+ Copyright (c) 2006 Hartmut Birr (e9hack at gmail dot com)
+
+ Remotely based on tda10021.c
+ Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
+ Copyright (C) 2004 Markus Schulz <msc@antzsystem.de>
+ Support for TDA10021
+
+*/
+
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include <asm/div64.h>
+
+#include <media/dvb_frontend.h>
+#include "tda1002x.h"
+
+#define REG0_INIT_VAL 0x23
+
+struct tda10023_state {
+ struct i2c_adapter* i2c;
+ /* configuration settings */
+ const struct tda10023_config *config;
+ struct dvb_frontend frontend;
+
+ u8 pwm;
+ u8 reg0;
+
+ /* clock settings */
+ u32 xtal;
+ u8 pll_m;
+ u8 pll_p;
+ u8 pll_n;
+ u32 sysclk;
+};
+
+#define dprintk(x...)
+
+static int verbose;
+
+static u8 tda10023_readreg (struct tda10023_state* state, u8 reg)
+{
+ u8 b0 [] = { reg };
+ u8 b1 [] = { 0 };
+ struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
+ { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
+ int ret;
+
+ ret = i2c_transfer (state->i2c, msg, 2);
+ if (ret != 2) {
+ int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
+ printk(KERN_ERR "DVB: TDA10023(%d): %s: readreg error (reg == 0x%02x, ret == %i)\n",
+ num, __func__, reg, ret);
+ }
+ return b1[0];
+}
+
+static int tda10023_writereg (struct tda10023_state* state, u8 reg, u8 data)
+{
+ u8 buf[] = { reg, data };
+ struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
+ int ret;
+
+ ret = i2c_transfer (state->i2c, &msg, 1);
+ if (ret != 1) {
+ int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
+ printk(KERN_ERR "DVB: TDA10023(%d): %s, writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
+ num, __func__, reg, data, ret);
+ }
+ return (ret != 1) ? -EREMOTEIO : 0;
+}
+
+
+static int tda10023_writebit (struct tda10023_state* state, u8 reg, u8 mask,u8 data)
+{
+ if (mask==0xff)
+ return tda10023_writereg(state, reg, data);
+ else {
+ u8 val;
+ val=tda10023_readreg(state,reg);
+ val&=~mask;
+ val|=(data&mask);
+ return tda10023_writereg(state, reg, val);
+ }
+}
+
+static void tda10023_writetab(struct tda10023_state* state, u8* tab)
+{
+ u8 r,m,v;
+ while (1) {
+ r=*tab++;
+ m=*tab++;
+ v=*tab++;
+ if (r==0xff) {
+ if (m==0xff)
+ break;
+ else
+ msleep(m);
+ }
+ else
+ tda10023_writebit(state,r,m,v);
+ }
+}
+
+//get access to tuner
+static int lock_tuner(struct tda10023_state* state)
+{
+ u8 buf[2] = { 0x0f, 0xc0 };
+ struct i2c_msg msg = {.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
+
+ if(i2c_transfer(state->i2c, &msg, 1) != 1)
+ {
+ printk("tda10023: lock tuner fails\n");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+//release access from tuner
+static int unlock_tuner(struct tda10023_state* state)
+{
+ u8 buf[2] = { 0x0f, 0x40 };
+ struct i2c_msg msg_post={.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
+
+ if(i2c_transfer(state->i2c, &msg_post, 1) != 1)
+ {
+ printk("tda10023: unlock tuner fails\n");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int tda10023_setup_reg0 (struct tda10023_state* state, u8 reg0)
+{
+ reg0 |= state->reg0 & 0x63;
+
+ tda10023_writereg (state, 0x00, reg0 & 0xfe);
+ tda10023_writereg (state, 0x00, reg0 | 0x01);
+
+ state->reg0 = reg0;
+ return 0;
+}
+
+static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr)
+{
+ s32 BDR;
+ s32 BDRI;
+ s16 SFIL=0;
+ u16 NDEC = 0;
+
+ /* avoid floating point operations multiplying syscloc and divider
+ by 10 */
+ u32 sysclk_x_10 = state->sysclk * 10;
+
+ if (sr < (u32)(sysclk_x_10/984)) {
+ NDEC=3;
+ SFIL=1;
+ } else if (sr < (u32)(sysclk_x_10/640)) {
+ NDEC=3;
+ SFIL=0;
+ } else if (sr < (u32)(sysclk_x_10/492)) {
+ NDEC=2;
+ SFIL=1;
+ } else if (sr < (u32)(sysclk_x_10/320)) {
+ NDEC=2;
+ SFIL=0;
+ } else if (sr < (u32)(sysclk_x_10/246)) {
+ NDEC=1;
+ SFIL=1;
+ } else if (sr < (u32)(sysclk_x_10/160)) {
+ NDEC=1;
+ SFIL=0;
+ } else if (sr < (u32)(sysclk_x_10/123)) {
+ NDEC=0;
+ SFIL=1;
+ }
+
+ BDRI = (state->sysclk)*16;
+ BDRI>>=NDEC;
+ BDRI +=sr/2;
+ BDRI /=sr;
+
+ if (BDRI>255)
+ BDRI=255;
+
+ {
+ u64 BDRX;
+
+ BDRX=1<<(24+NDEC);
+ BDRX*=sr;
+ do_div(BDRX, state->sysclk); /* BDRX/=SYSCLK; */
+
+ BDR=(s32)BDRX;
+ }
+ dprintk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n",
+ sr, BDR, BDRI, NDEC);
+ tda10023_writebit (state, 0x03, 0xc0, NDEC<<6);
+ tda10023_writereg (state, 0x0a, BDR&255);
+ tda10023_writereg (state, 0x0b, (BDR>>8)&255);
+ tda10023_writereg (state, 0x0c, (BDR>>16)&31);
+ tda10023_writereg (state, 0x0d, BDRI);
+ tda10023_writereg (state, 0x3d, (SFIL<<7));
+ return 0;
+}
+
+static int tda10023_init (struct dvb_frontend *fe)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ u8 tda10023_inittab[] = {
+/* reg mask val */
+/* 000 */ 0x2a, 0xff, 0x02, /* PLL3, Bypass, Power Down */
+/* 003 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
+/* 006 */ 0x2a, 0xff, 0x03, /* PLL3, Bypass, Power Down */
+/* 009 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
+ /* PLL1 */
+/* 012 */ 0x28, 0xff, (state->pll_m-1),
+ /* PLL2 */
+/* 015 */ 0x29, 0xff, ((state->pll_p-1)<<6)|(state->pll_n-1),
+ /* GPR FSAMPLING=1 */
+/* 018 */ 0x00, 0xff, REG0_INIT_VAL,
+/* 021 */ 0x2a, 0xff, 0x08, /* PLL3 PSACLK=1 */
+/* 024 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
+/* 027 */ 0x1f, 0xff, 0x00, /* RESET */
+/* 030 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
+/* 033 */ 0xe6, 0x0c, 0x04, /* RSCFG_IND */
+/* 036 */ 0x10, 0xc0, 0x80, /* DECDVBCFG1 PBER=1 */
+
+/* 039 */ 0x0e, 0xff, 0x82, /* GAIN1 */
+/* 042 */ 0x03, 0x08, 0x08, /* CLKCONF DYN=1 */
+/* 045 */ 0x2e, 0xbf, 0x30, /* AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1
+ PPWMTUN=0 PPWMIF=0 */
+/* 048 */ 0x01, 0xff, 0x30, /* AGCREF */
+/* 051 */ 0x1e, 0x84, 0x84, /* CONTROL SACLK_ON=1 */
+/* 054 */ 0x1b, 0xff, 0xc8, /* ADC TWOS=1 */
+/* 057 */ 0x3b, 0xff, 0xff, /* IFMAX */
+/* 060 */ 0x3c, 0xff, 0x00, /* IFMIN */
+/* 063 */ 0x34, 0xff, 0x00, /* PWMREF */
+/* 066 */ 0x35, 0xff, 0xff, /* TUNMAX */
+/* 069 */ 0x36, 0xff, 0x00, /* TUNMIN */
+/* 072 */ 0x06, 0xff, 0x7f, /* EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 */
+/* 075 */ 0x1c, 0x30, 0x30, /* EQCONF2 STEPALGO=SGNALGO=1 */
+/* 078 */ 0x37, 0xff, 0xf6, /* DELTAF_LSB */
+/* 081 */ 0x38, 0xff, 0xff, /* DELTAF_MSB */
+/* 084 */ 0x02, 0xff, 0x93, /* AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 */
+/* 087 */ 0x2d, 0xff, 0xf6, /* SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 */
+/* 090 */ 0x04, 0x10, 0x00, /* SWRAMP=1 */
+/* 093 */ 0x12, 0xff, TDA10023_OUTPUT_MODE_PARALLEL_B, /*
+ INTP1 POCLKP=1 FEL=1 MFS=0 */
+/* 096 */ 0x2b, 0x01, 0xa1, /* INTS1 */
+/* 099 */ 0x20, 0xff, 0x04, /* INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? */
+/* 102 */ 0x2c, 0xff, 0x0d, /* INTP/S TRIP=0 TRIS=0 */
+/* 105 */ 0xc4, 0xff, 0x00,
+/* 108 */ 0xc3, 0x30, 0x00,
+/* 111 */ 0xb5, 0xff, 0x19, /* ERAGC_THD */
+/* 114 */ 0x00, 0x03, 0x01, /* GPR, CLBS soft reset */
+/* 117 */ 0x00, 0x03, 0x03, /* GPR, CLBS soft reset */
+/* 120 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
+/* 123 */ 0xff, 0xff, 0xff
+};
+ dprintk("DVB: TDA10023(%d): init chip\n", fe->dvb->num);
+
+ /* override default values if set in config */
+ if (state->config->deltaf) {
+ tda10023_inittab[80] = (state->config->deltaf & 0xff);
+ tda10023_inittab[83] = (state->config->deltaf >> 8);
+ }
+
+ if (state->config->output_mode)
+ tda10023_inittab[95] = state->config->output_mode;
+
+ tda10023_writetab(state, tda10023_inittab);
+
+ return 0;
+}
+
+struct qam_params {
+ u8 qam, lockthr, mseth, aref, agcrefnyq, eragnyq_thd;
+};
+
+static int tda10023_set_parameters(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ unsigned qam = c->modulation;
+ bool is_annex_c;
+ struct tda10023_state* state = fe->demodulator_priv;
+ static const struct qam_params qam_params[] = {
+ /* Modulation QAM LOCKTHR MSETH AREF AGCREFNYQ ERAGCNYQ_THD */
+ [QPSK] = { (5<<2), 0x78, 0x8c, 0x96, 0x78, 0x4c },
+ [QAM_16] = { (0<<2), 0x87, 0xa2, 0x91, 0x8c, 0x57 },
+ [QAM_32] = { (1<<2), 0x64, 0x74, 0x96, 0x8c, 0x57 },
+ [QAM_64] = { (2<<2), 0x46, 0x43, 0x6a, 0x6a, 0x44 },
+ [QAM_128] = { (3<<2), 0x36, 0x34, 0x7e, 0x78, 0x4c },
+ [QAM_256] = { (4<<2), 0x26, 0x23, 0x6c, 0x5c, 0x3c },
+ };
+
+ switch (delsys) {
+ case SYS_DVBC_ANNEX_A:
+ is_annex_c = false;
+ break;
+ case SYS_DVBC_ANNEX_C:
+ is_annex_c = true;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /*
+ * gcc optimizes the code below the same way as it would code:
+ * "if (qam > 5) return -EINVAL;"
+ * Yet, the code is clearer, as it shows what QAM standards are
+ * supported by the driver, and avoids the usage of magic numbers on
+ * it.
+ */
+ switch (qam) {
+ case QPSK:
+ case QAM_16:
+ case QAM_32:
+ case QAM_64:
+ case QAM_128:
+ case QAM_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (fe->ops.tuner_ops.set_params) {
+ fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
+ }
+
+ tda10023_set_symbolrate(state, c->symbol_rate);
+ tda10023_writereg(state, 0x05, qam_params[qam].lockthr);
+ tda10023_writereg(state, 0x08, qam_params[qam].mseth);
+ tda10023_writereg(state, 0x09, qam_params[qam].aref);
+ tda10023_writereg(state, 0xb4, qam_params[qam].agcrefnyq);
+ tda10023_writereg(state, 0xb6, qam_params[qam].eragnyq_thd);
+#if 0
+ tda10023_writereg(state, 0x04, (c->inversion ? 0x12 : 0x32));
+ tda10023_writebit(state, 0x04, 0x60, (c->inversion ? 0 : 0x20));
+#endif
+ tda10023_writebit(state, 0x04, 0x40, 0x40);
+
+ if (is_annex_c)
+ tda10023_writebit(state, 0x3d, 0xfc, 0x03);
+ else
+ tda10023_writebit(state, 0x3d, 0xfc, 0x02);
+
+ tda10023_setup_reg0(state, qam_params[qam].qam);
+
+ return 0;
+}
+
+static int tda10023_read_status(struct dvb_frontend *fe,
+ enum fe_status *status)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ int sync;
+
+ *status = 0;
+
+ //0x11[1] == CARLOCK -> Carrier locked
+ //0x11[2] == FSYNC -> Frame synchronisation
+ //0x11[3] == FEL -> Front End locked
+ //0x11[6] == NODVB -> DVB Mode Information
+ sync = tda10023_readreg (state, 0x11);
+
+ if (sync & 2)
+ *status |= FE_HAS_SIGNAL|FE_HAS_CARRIER;
+
+ if (sync & 4)
+ *status |= FE_HAS_SYNC|FE_HAS_VITERBI;
+
+ if (sync & 8)
+ *status |= FE_HAS_LOCK;
+
+ return 0;
+}
+
+static int tda10023_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ u8 a,b,c;
+ a=tda10023_readreg(state, 0x14);
+ b=tda10023_readreg(state, 0x15);
+ c=tda10023_readreg(state, 0x16)&0xf;
+ tda10023_writebit (state, 0x10, 0xc0, 0x00);
+
+ *ber = a | (b<<8)| (c<<16);
+ return 0;
+}
+
+static int tda10023_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ u8 ifgain=tda10023_readreg(state, 0x2f);
+
+ u16 gain = ((255-tda10023_readreg(state, 0x17))) + (255-ifgain)/16;
+ // Max raw value is about 0xb0 -> Normalize to >0xf0 after 0x90
+ if (gain>0x90)
+ gain=gain+2*(gain-0x90);
+ if (gain>255)
+ gain=255;
+
+ *strength = (gain<<8)|gain;
+ return 0;
+}
+
+static int tda10023_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+
+ u8 quality = ~tda10023_readreg(state, 0x18);
+ *snr = (quality << 8) | quality;
+ return 0;
+}
+
+static int tda10023_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ u8 a,b,c,d;
+ a= tda10023_readreg (state, 0x74);
+ b= tda10023_readreg (state, 0x75);
+ c= tda10023_readreg (state, 0x76);
+ d= tda10023_readreg (state, 0x77);
+ *ucblocks = a | (b<<8)|(c<<16)|(d<<24);
+
+ tda10023_writebit (state, 0x10, 0x20,0x00);
+ tda10023_writebit (state, 0x10, 0x20,0x20);
+ tda10023_writebit (state, 0x13, 0x01, 0x00);
+
+ return 0;
+}
+
+static int tda10023_get_frontend(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *p)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ int sync,inv;
+ s8 afc = 0;
+
+ sync = tda10023_readreg(state, 0x11);
+ afc = tda10023_readreg(state, 0x19);
+ inv = tda10023_readreg(state, 0x04);
+
+ if (verbose) {
+ /* AFC only valid when carrier has been recovered */
+ printk(sync & 2 ? "DVB: TDA10023(%d): AFC (%d) %dHz\n" :
+ "DVB: TDA10023(%d): [AFC (%d) %dHz]\n",
+ state->frontend.dvb->num, afc,
+ -((s32)p->symbol_rate * afc) >> 10);
+ }
+
+ p->inversion = (inv&0x20?0:1);
+ p->modulation = ((state->reg0 >> 2) & 7) + QAM_16;
+
+ p->fec_inner = FEC_NONE;
+ p->frequency = ((p->frequency + 31250) / 62500) * 62500;
+
+ if (sync & 2)
+ p->frequency -= ((s32)p->symbol_rate * afc) >> 10;
+
+ return 0;
+}
+
+static int tda10023_sleep(struct dvb_frontend* fe)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+
+ tda10023_writereg (state, 0x1b, 0x02); /* pdown ADC */
+ tda10023_writereg (state, 0x00, 0x80); /* standby */
+
+ return 0;
+}
+
+static int tda10023_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+
+ if (enable) {
+ lock_tuner(state);
+ } else {
+ unlock_tuner(state);
+ }
+ return 0;
+}
+
+static void tda10023_release(struct dvb_frontend* fe)
+{
+ struct tda10023_state* state = fe->demodulator_priv;
+ kfree(state);
+}
+
+static const struct dvb_frontend_ops tda10023_ops;
+
+struct dvb_frontend *tda10023_attach(const struct tda10023_config *config,
+ struct i2c_adapter *i2c,
+ u8 pwm)
+{
+ struct tda10023_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL);
+ if (state == NULL) goto error;
+
+ /* setup the state */
+ state->config = config;
+ state->i2c = i2c;
+
+ /* wakeup if in standby */
+ tda10023_writereg (state, 0x00, 0x33);
+ /* check if the demod is there */
+ if ((tda10023_readreg(state, 0x1a) & 0xf0) != 0x70) goto error;
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops));
+ state->pwm = pwm;
+ state->reg0 = REG0_INIT_VAL;
+ if (state->config->xtal) {
+ state->xtal = state->config->xtal;
+ state->pll_m = state->config->pll_m;
+ state->pll_p = state->config->pll_p;
+ state->pll_n = state->config->pll_n;
+ } else {
+ /* set default values if not defined in config */
+ state->xtal = 28920000;
+ state->pll_m = 8;
+ state->pll_p = 4;
+ state->pll_n = 1;
+ }
+
+ /* calc sysclk */
+ state->sysclk = (state->xtal * state->pll_m / \
+ (state->pll_n * state->pll_p));
+
+ state->frontend.ops.info.symbol_rate_min = (state->sysclk/2)/64;
+ state->frontend.ops.info.symbol_rate_max = (state->sysclk/2)/4;
+
+ dprintk("DVB: TDA10023 %s: xtal:%d pll_m:%d pll_p:%d pll_n:%d\n",
+ __func__, state->xtal, state->pll_m, state->pll_p,
+ state->pll_n);
+
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+
+error:
+ kfree(state);
+ return NULL;
+}
+
+static const struct dvb_frontend_ops tda10023_ops = {
+ .delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_C },
+ .info = {
+ .name = "Philips TDA10023 DVB-C",
+ .frequency_min_hz = 47 * MHz,
+ .frequency_max_hz = 862 * MHz,
+ .frequency_stepsize_hz = 62500,
+ .symbol_rate_min = 0, /* set in tda10023_attach */
+ .symbol_rate_max = 0, /* set in tda10023_attach */
+ .caps = 0x400 | //FE_CAN_QAM_4
+ FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 | FE_CAN_QAM_256 |
+ FE_CAN_FEC_AUTO
+ },
+
+ .release = tda10023_release,
+
+ .init = tda10023_init,
+ .sleep = tda10023_sleep,
+ .i2c_gate_ctrl = tda10023_i2c_gate_ctrl,
+
+ .set_frontend = tda10023_set_parameters,
+ .get_frontend = tda10023_get_frontend,
+ .read_status = tda10023_read_status,
+ .read_ber = tda10023_read_ber,
+ .read_signal_strength = tda10023_read_signal_strength,
+ .read_snr = tda10023_read_snr,
+ .read_ucblocks = tda10023_read_ucblocks,
+};
+
+
+MODULE_DESCRIPTION("Philips TDA10023 DVB-C demodulator driver");
+MODULE_AUTHOR("Georg Acher, Hartmut Birr");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL_GPL(tda10023_attach);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 04:59:22 +0000