AetherDroid/android_kernel_samsung_on5xelte
1
0
Fork 0
mirror of https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git synced 2025-09-09 01:28:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed MTP to work with TWRP

Browse source
This commit is contained in:
awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

10
drivers/media/pci/pt3/Kconfig Normal file
View file

@ -0,0 +1,10 @@
config DVB_PT3
tristate "Earthsoft PT3 cards"
depends on DVB_CORE && PCI && I2C
select DVB_TC90522 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_QM1D1C0042 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MXL301RF if MEDIA_SUBDRV_AUTOSELECT
help
Support for Earthsoft PT3 PCIe cards.
Say Y or M if you own such a device and want to use it.

8
drivers/media/pci/pt3/Makefile Normal file
View file

@ -0,0 +1,8 @@
earth-pt3-objs += pt3.o pt3_i2c.o pt3_dma.o
obj-$(CONFIG_DVB_PT3) += earth-pt3.o
ccflags-y += -Idrivers/media/dvb-core
ccflags-y += -Idrivers/media/dvb-frontends
ccflags-y += -Idrivers/media/tuners

876
drivers/media/pci/pt3/pt3.c Normal file
View file

@ -0,0 +1,876 @@
/*
* Earthsoft PT3 driver
*
* Copyright (C) 2014 Akihiro Tsukada <tskd08@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 version 2.
*
*
* 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.
*/
#include <linux/freezer.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/string.h>
#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "pt3.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static bool one_adapter;
module_param(one_adapter, bool, 0444);
MODULE_PARM_DESC(one_adapter, "Place FE's together under one adapter.");
static int num_bufs = 4;
module_param(num_bufs, int, 0444);
MODULE_PARM_DESC(num_bufs, "Number of DMA buffer (188KiB) per FE.");
static const struct i2c_algorithm pt3_i2c_algo = {
.master_xfer = &pt3_i2c_master_xfer,
.functionality = &pt3_i2c_functionality,
};
static const struct pt3_adap_config adap_conf[PT3_NUM_FE] = {
{
.demod_info = {
I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x11),
},
.tuner_info = {
I2C_BOARD_INFO("qm1d1c0042", 0x63),
},
.tuner_cfg.qm1d1c0042 = {
.lpf = 1,
},
.init_freq = 1049480 - 300,
},
{
.demod_info = {
I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x10),
},
.tuner_info = {
I2C_BOARD_INFO("mxl301rf", 0x62),
},
.init_freq = 515142857,
},
{
.demod_info = {
I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x13),
},
.tuner_info = {
I2C_BOARD_INFO("qm1d1c0042", 0x60),
},
.tuner_cfg.qm1d1c0042 = {
.lpf = 1,
},
.init_freq = 1049480 + 300,
},
{
.demod_info = {
I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x12),
},
.tuner_info = {
I2C_BOARD_INFO("mxl301rf", 0x61),
},
.init_freq = 521142857,
},
};
struct reg_val {
u8 reg;
u8 val;
};
static int
pt3_demod_write(struct pt3_adapter *adap, const struct reg_val *data, int num)
{
struct i2c_msg msg;
int i, ret;
ret = 0;
msg.addr = adap->i2c_demod->addr;
msg.flags = 0;
msg.len = 2;
for (i = 0; i < num; i++) {
msg.buf = (u8 *)&data[i];
ret = i2c_transfer(adap->i2c_demod->adapter, &msg, 1);
if (ret == 0)
ret = -EREMOTE;
if (ret < 0)
return ret;
}
return 0;
}
static inline void pt3_lnb_ctrl(struct pt3_board *pt3, bool on)
{
iowrite32((on ? 0x0f : 0x0c), pt3->regs[0] + REG_SYSTEM_W);
}
static inline struct pt3_adapter *pt3_find_adapter(struct dvb_frontend *fe)
{
struct pt3_board *pt3;
int i;
if (one_adapter) {
pt3 = fe->dvb->priv;
for (i = 0; i < PT3_NUM_FE; i++)
if (pt3->adaps[i]->fe == fe)
return pt3->adaps[i];
}
return container_of(fe->dvb, struct pt3_adapter, dvb_adap);
}
/*
* all 4 tuners in PT3 are packaged in a can module (Sharp VA4M6JC2103).
* it seems that they share the power lines and Amp power line and
* adaps[3] controls those powers.
*/
static int
pt3_set_tuner_power(struct pt3_board *pt3, bool tuner_on, bool amp_on)
{
struct reg_val rv = { 0x1e, 0x99 };
if (tuner_on)
rv.val |= 0x40;
if (amp_on)
rv.val |= 0x04;
return pt3_demod_write(pt3->adaps[PT3_NUM_FE - 1], &rv, 1);
}
static int pt3_set_lna(struct dvb_frontend *fe)
{
struct pt3_adapter *adap;
struct pt3_board *pt3;
u32 val;
int ret;
/* LNA is shared btw. 2 TERR-tuners */
adap = pt3_find_adapter(fe);
val = fe->dtv_property_cache.lna;
if (val == LNA_AUTO || val == adap->cur_lna)
return 0;
pt3 = adap->dvb_adap.priv;
if (mutex_lock_interruptible(&pt3->lock))
return -ERESTARTSYS;
if (val)
pt3->lna_on_cnt++;
else
pt3->lna_on_cnt--;
if (val && pt3->lna_on_cnt <= 1) {
pt3->lna_on_cnt = 1;
ret = pt3_set_tuner_power(pt3, true, true);
} else if (!val && pt3->lna_on_cnt <= 0) {
pt3->lna_on_cnt = 0;
ret = pt3_set_tuner_power(pt3, true, false);
} else
ret = 0;
mutex_unlock(&pt3->lock);
adap->cur_lna = (val != 0);
return ret;
}
static int pt3_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t volt)
{
struct pt3_adapter *adap;
struct pt3_board *pt3;
bool on;
/* LNB power is shared btw. 2 SAT-tuners */
adap = pt3_find_adapter(fe);
on = (volt != SEC_VOLTAGE_OFF);
if (on == adap->cur_lnb)
return 0;
adap->cur_lnb = on;
pt3 = adap->dvb_adap.priv;
if (mutex_lock_interruptible(&pt3->lock))
return -ERESTARTSYS;
if (on)
pt3->lnb_on_cnt++;
else
pt3->lnb_on_cnt--;
if (on && pt3->lnb_on_cnt <= 1) {
pt3->lnb_on_cnt = 1;
pt3_lnb_ctrl(pt3, true);
} else if (!on && pt3->lnb_on_cnt <= 0) {
pt3->lnb_on_cnt = 0;
pt3_lnb_ctrl(pt3, false);
}
mutex_unlock(&pt3->lock);
return 0;
}
/* register values used in pt3_fe_init() */
static const struct reg_val init0_sat[] = {
{ 0x03, 0x01 },
{ 0x1e, 0x10 },
};
static const struct reg_val init0_ter[] = {
{ 0x01, 0x40 },
{ 0x1c, 0x10 },
};
static const struct reg_val cfg_sat[] = {
{ 0x1c, 0x15 },
{ 0x1f, 0x04 },
};
static const struct reg_val cfg_ter[] = {
{ 0x1d, 0x01 },
};
/*
* pt3_fe_init: initialize demod sub modules and ISDB-T tuners all at once.
*
* As for demod IC (TC90522) and ISDB-T tuners (MxL301RF),
* the i2c sequences for init'ing them are not public and hidden in a ROM,
* and include the board specific configurations as well.
* They are stored in a lump and cannot be taken out / accessed separately,
* thus cannot be moved to the FE/tuner driver.
*/
static int pt3_fe_init(struct pt3_board *pt3)
{
int i, ret;
struct dvb_frontend *fe;
pt3_i2c_reset(pt3);
ret = pt3_init_all_demods(pt3);
if (ret < 0) {
dev_warn(&pt3->pdev->dev, "Failed to init demod chips.");
return ret;
}
/* additional config? */
for (i = 0; i < PT3_NUM_FE; i++) {
fe = pt3->adaps[i]->fe;
if (fe->ops.delsys[0] == SYS_ISDBS)
ret = pt3_demod_write(pt3->adaps[i],
init0_sat, ARRAY_SIZE(init0_sat));
else
ret = pt3_demod_write(pt3->adaps[i],
init0_ter, ARRAY_SIZE(init0_ter));
if (ret < 0) {
dev_warn(&pt3->pdev->dev,
"demod[%d] faild in init sequence0.", i);
return ret;
}
ret = fe->ops.init(fe);
if (ret < 0)
return ret;
}
usleep_range(2000, 4000);
ret = pt3_set_tuner_power(pt3, true, false);
if (ret < 0) {
dev_warn(&pt3->pdev->dev, "Failed to control tuner module.");
return ret;
}
/* output pin configuration */
for (i = 0; i < PT3_NUM_FE; i++) {
fe = pt3->adaps[i]->fe;
if (fe->ops.delsys[0] == SYS_ISDBS)
ret = pt3_demod_write(pt3->adaps[i],
cfg_sat, ARRAY_SIZE(cfg_sat));
else
ret = pt3_demod_write(pt3->adaps[i],
cfg_ter, ARRAY_SIZE(cfg_ter));
if (ret < 0) {
dev_warn(&pt3->pdev->dev,
"demod[%d] faild in init sequence1.", i);
return ret;
}
}
usleep_range(4000, 6000);
for (i = 0; i < PT3_NUM_FE; i++) {
fe = pt3->adaps[i]->fe;
if (fe->ops.delsys[0] != SYS_ISDBS)
continue;
/* init and wake-up ISDB-S tuners */
ret = fe->ops.tuner_ops.init(fe);
if (ret < 0) {
dev_warn(&pt3->pdev->dev,
"Failed to init SAT-tuner[%d].", i);
return ret;
}
}
ret = pt3_init_all_mxl301rf(pt3);
if (ret < 0) {
dev_warn(&pt3->pdev->dev, "Failed to init TERR-tuners.");
return ret;
}
ret = pt3_set_tuner_power(pt3, true, true);
if (ret < 0) {
dev_warn(&pt3->pdev->dev, "Failed to control tuner module.");
return ret;
}
/* Wake up all tuners and make an initial tuning,
* in order to avoid interference among the tuners in the module,
* according to the doc from the manufacturer.
*/
for (i = 0; i < PT3_NUM_FE; i++) {
fe = pt3->adaps[i]->fe;
ret = 0;
if (fe->ops.delsys[0] == SYS_ISDBT)
ret = fe->ops.tuner_ops.init(fe);
/* set only when called from pt3_probe(), not resume() */
if (ret == 0 && fe->dtv_property_cache.frequency == 0) {
fe->dtv_property_cache.frequency =
adap_conf[i].init_freq;
ret = fe->ops.tuner_ops.set_params(fe);
}
if (ret < 0) {
dev_warn(&pt3->pdev->dev,
"Failed in initial tuning of tuner[%d].", i);
return ret;
}
}
/* and sleep again, waiting to be opened by users. */
for (i = 0; i < PT3_NUM_FE; i++) {
fe = pt3->adaps[i]->fe;
if (fe->ops.tuner_ops.sleep)
ret = fe->ops.tuner_ops.sleep(fe);
if (ret < 0)
break;
if (fe->ops.sleep)
ret = fe->ops.sleep(fe);
if (ret < 0)
break;
if (fe->ops.delsys[0] == SYS_ISDBS)
fe->ops.set_voltage = &pt3_set_voltage;
else
fe->ops.set_lna = &pt3_set_lna;
}
if (i < PT3_NUM_FE) {
dev_warn(&pt3->pdev->dev, "FE[%d] failed to standby.", i);
return ret;
}
return 0;
}
static int pt3_attach_fe(struct pt3_board *pt3, int i)
{
struct i2c_board_info info;
struct tc90522_config cfg;
struct i2c_client *cl;
struct dvb_adapter *dvb_adap;
int ret;
info = adap_conf[i].demod_info;
cfg = adap_conf[i].demod_cfg;
cfg.tuner_i2c = NULL;
info.platform_data = &cfg;
ret = -ENODEV;
request_module("tc90522");
cl = i2c_new_device(&pt3->i2c_adap, &info);
if (!cl || !cl->dev.driver)
return -ENODEV;
pt3->adaps[i]->i2c_demod = cl;
if (!try_module_get(cl->dev.driver->owner))
goto err_demod_i2c_unregister_device;
if (!strncmp(cl->name, TC90522_I2C_DEV_SAT, sizeof(cl->name))) {
struct qm1d1c0042_config tcfg;
tcfg = adap_conf[i].tuner_cfg.qm1d1c0042;
tcfg.fe = cfg.fe;
info = adap_conf[i].tuner_info;
info.platform_data = &tcfg;
request_module("qm1d1c0042");
cl = i2c_new_device(cfg.tuner_i2c, &info);
} else {
struct mxl301rf_config tcfg;
tcfg = adap_conf[i].tuner_cfg.mxl301rf;
tcfg.fe = cfg.fe;
info = adap_conf[i].tuner_info;
info.platform_data = &tcfg;
request_module("mxl301rf");
cl = i2c_new_device(cfg.tuner_i2c, &info);
}
if (!cl || !cl->dev.driver)
goto err_demod_module_put;
pt3->adaps[i]->i2c_tuner = cl;
if (!try_module_get(cl->dev.driver->owner))
goto err_tuner_i2c_unregister_device;
dvb_adap = &pt3->adaps[one_adapter ? 0 : i]->dvb_adap;
ret = dvb_register_frontend(dvb_adap, cfg.fe);
if (ret < 0)
goto err_tuner_module_put;
pt3->adaps[i]->fe = cfg.fe;
return 0;
err_tuner_module_put:
module_put(pt3->adaps[i]->i2c_tuner->dev.driver->owner);
err_tuner_i2c_unregister_device:
i2c_unregister_device(pt3->adaps[i]->i2c_tuner);
err_demod_module_put:
module_put(pt3->adaps[i]->i2c_demod->dev.driver->owner);
err_demod_i2c_unregister_device:
i2c_unregister_device(pt3->adaps[i]->i2c_demod);
return ret;
}
static int pt3_fetch_thread(void *data)
{
struct pt3_adapter *adap = data;
ktime_t delay;
bool was_frozen;
#define PT3_INITIAL_BUF_DROPS 4
#define PT3_FETCH_DELAY 10
#define PT3_FETCH_DELAY_DELTA 2
pt3_init_dmabuf(adap);
adap->num_discard = PT3_INITIAL_BUF_DROPS;
dev_dbg(adap->dvb_adap.device,
"PT3: [%s] started.\n", adap->thread->comm);
set_freezable();
while (!kthread_freezable_should_stop(&was_frozen)) {
if (was_frozen)
adap->num_discard = PT3_INITIAL_BUF_DROPS;
pt3_proc_dma(adap);
delay = ktime_set(0, PT3_FETCH_DELAY * NSEC_PER_MSEC);
set_current_state(TASK_UNINTERRUPTIBLE);
freezable_schedule_hrtimeout_range(&delay,
PT3_FETCH_DELAY_DELTA * NSEC_PER_MSEC,
HRTIMER_MODE_REL);
}
dev_dbg(adap->dvb_adap.device,
"PT3: [%s] exited.\n", adap->thread->comm);
adap->thread = NULL;
return 0;
}
static int pt3_start_streaming(struct pt3_adapter *adap)
{
struct task_struct *thread;
/* start fetching thread */
thread = kthread_run(pt3_fetch_thread, adap, "pt3-ad%i-dmx%i",
adap->dvb_adap.num, adap->dmxdev.dvbdev->id);
if (IS_ERR(thread)) {
int ret = PTR_ERR(thread);
dev_warn(adap->dvb_adap.device,
"PT3 (adap:%d, dmx:%d): failed to start kthread.\n",
adap->dvb_adap.num, adap->dmxdev.dvbdev->id);
return ret;
}
adap->thread = thread;
return pt3_start_dma(adap);
}
static int pt3_stop_streaming(struct pt3_adapter *adap)
{
int ret;
ret = pt3_stop_dma(adap);
if (ret)
dev_warn(adap->dvb_adap.device,
"PT3: failed to stop streaming of adap:%d/FE:%d\n",
adap->dvb_adap.num, adap->fe->id);
/* kill the fetching thread */
ret = kthread_stop(adap->thread);
return ret;
}
static int pt3_start_feed(struct dvb_demux_feed *feed)
{
struct pt3_adapter *adap;
if (signal_pending(current))
return -EINTR;
adap = container_of(feed->demux, struct pt3_adapter, demux);
adap->num_feeds++;
if (adap->thread)
return 0;
if (adap->num_feeds != 1) {
dev_warn(adap->dvb_adap.device,
"%s: unmatched start/stop_feed in adap:%i/dmx:%i.\n",
__func__, adap->dvb_adap.num, adap->dmxdev.dvbdev->id);
adap->num_feeds = 1;
}
return pt3_start_streaming(adap);
}
static int pt3_stop_feed(struct dvb_demux_feed *feed)
{
struct pt3_adapter *adap;
adap = container_of(feed->demux, struct pt3_adapter, demux);
adap->num_feeds--;
if (adap->num_feeds > 0 || !adap->thread)
return 0;
adap->num_feeds = 0;
return pt3_stop_streaming(adap);
}
static int pt3_alloc_adapter(struct pt3_board *pt3, int index)
{
int ret;
struct pt3_adapter *adap;
struct dvb_adapter *da;
adap = kzalloc(sizeof(*adap), GFP_KERNEL);
if (!adap) {
dev_err(&pt3->pdev->dev, "failed to alloc mem for adapter.\n");
return -ENOMEM;
}
pt3->adaps[index] = adap;
adap->adap_idx = index;
if (index == 0 || !one_adapter) {
ret = dvb_register_adapter(&adap->dvb_adap, "PT3 DVB",
THIS_MODULE, &pt3->pdev->dev, adapter_nr);
if (ret < 0) {
dev_err(&pt3->pdev->dev,
"failed to register adapter dev.\n");
goto err_mem;
}
da = &adap->dvb_adap;
} else
da = &pt3->adaps[0]->dvb_adap;
adap->dvb_adap.priv = pt3;
adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
adap->demux.priv = adap;
adap->demux.feednum = 256;
adap->demux.filternum = 256;
adap->demux.start_feed = pt3_start_feed;
adap->demux.stop_feed = pt3_stop_feed;
ret = dvb_dmx_init(&adap->demux);
if (ret < 0) {
dev_err(&pt3->pdev->dev, "failed to init dmx dev.\n");
goto err_adap;
}
adap->dmxdev.filternum = 256;
adap->dmxdev.demux = &adap->demux.dmx;
ret = dvb_dmxdev_init(&adap->dmxdev, da);
if (ret < 0) {
dev_err(&pt3->pdev->dev, "failed to init dmxdev.\n");
goto err_demux;
}
ret = pt3_alloc_dmabuf(adap);
if (ret) {
dev_err(&pt3->pdev->dev, "failed to alloc DMA buffers.\n");
goto err_dmabuf;
}
return 0;
err_dmabuf:
pt3_free_dmabuf(adap);
dvb_dmxdev_release(&adap->dmxdev);
err_demux:
dvb_dmx_release(&adap->demux);
err_adap:
if (index == 0 || !one_adapter)
dvb_unregister_adapter(da);
err_mem:
kfree(adap);
pt3->adaps[index] = NULL;
return ret;
}
static void pt3_cleanup_adapter(struct pt3_board *pt3, int index)
{
struct pt3_adapter *adap;
struct dmx_demux *dmx;
adap = pt3->adaps[index];
if (adap == NULL)
return;
/* stop demux kthread */
if (adap->thread)
pt3_stop_streaming(adap);
dmx = &adap->demux.dmx;
dmx->close(dmx);
if (adap->fe) {
adap->fe->callback = NULL;
if (adap->fe->frontend_priv)
dvb_unregister_frontend(adap->fe);
if (adap->i2c_tuner) {
module_put(adap->i2c_tuner->dev.driver->owner);
i2c_unregister_device(adap->i2c_tuner);
}
if (adap->i2c_demod) {
module_put(adap->i2c_demod->dev.driver->owner);
i2c_unregister_device(adap->i2c_demod);
}
}
pt3_free_dmabuf(adap);
dvb_dmxdev_release(&adap->dmxdev);
dvb_dmx_release(&adap->demux);
if (index == 0 || !one_adapter)
dvb_unregister_adapter(&adap->dvb_adap);
kfree(adap);
pt3->adaps[index] = NULL;
}
#ifdef CONFIG_PM_SLEEP
static int pt3_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pt3_board *pt3 = pci_get_drvdata(pdev);
int i;
struct pt3_adapter *adap;
for (i = 0; i < PT3_NUM_FE; i++) {
adap = pt3->adaps[i];
if (adap->num_feeds > 0)
pt3_stop_dma(adap);
dvb_frontend_suspend(adap->fe);
pt3_free_dmabuf(adap);
}
pt3_lnb_ctrl(pt3, false);
pt3_set_tuner_power(pt3, false, false);
return 0;
}
static int pt3_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pt3_board *pt3 = pci_get_drvdata(pdev);
int i, ret;
struct pt3_adapter *adap;
ret = pt3_fe_init(pt3);
if (ret)
return ret;
if (pt3->lna_on_cnt > 0)
pt3_set_tuner_power(pt3, true, true);
if (pt3->lnb_on_cnt > 0)
pt3_lnb_ctrl(pt3, true);
for (i = 0; i < PT3_NUM_FE; i++) {
adap = pt3->adaps[i];
dvb_frontend_resume(adap->fe);
ret = pt3_alloc_dmabuf(adap);
if (ret) {
dev_err(&pt3->pdev->dev, "failed to alloc DMA bufs.\n");
continue;
}
if (adap->num_feeds > 0)
pt3_start_dma(adap);
}
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static void pt3_remove(struct pci_dev *pdev)
{
struct pt3_board *pt3;
int i;
pt3 = pci_get_drvdata(pdev);
for (i = PT3_NUM_FE - 1; i >= 0; i--)
pt3_cleanup_adapter(pt3, i);
i2c_del_adapter(&pt3->i2c_adap);
kfree(pt3->i2c_buf);
pci_iounmap(pt3->pdev, pt3->regs[0]);
pci_iounmap(pt3->pdev, pt3->regs[1]);
pci_release_regions(pdev);
pci_disable_device(pdev);
kfree(pt3);
}
static int pt3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
u8 rev;
u32 ver;
int i, ret;
struct pt3_board *pt3;
struct i2c_adapter *i2c;
if (pci_read_config_byte(pdev, PCI_REVISION_ID, &rev) || rev != 1)
return -ENODEV;
ret = pci_enable_device(pdev);
if (ret < 0)
return -ENODEV;
pci_set_master(pdev);
ret = pci_request_regions(pdev, DRV_NAME);
if (ret < 0)
goto err_disable_device;
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
if (ret == 0)
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
else {
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret == 0)
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
else {
dev_err(&pdev->dev, "Failed to set DMA mask.\n");
goto err_release_regions;
}
dev_info(&pdev->dev, "Use 32bit DMA.\n");
}
pt3 = kzalloc(sizeof(*pt3), GFP_KERNEL);
if (!pt3) {
dev_err(&pdev->dev, "Failed to alloc mem for this dev.\n");
ret = -ENOMEM;
goto err_release_regions;
}
pci_set_drvdata(pdev, pt3);
pt3->pdev = pdev;
mutex_init(&pt3->lock);
pt3->regs[0] = pci_ioremap_bar(pdev, 0);
pt3->regs[1] = pci_ioremap_bar(pdev, 2);
if (pt3->regs[0] == NULL || pt3->regs[1] == NULL) {
dev_err(&pdev->dev, "Failed to ioremap.\n");
ret = -ENOMEM;
goto err_kfree;
}
ver = ioread32(pt3->regs[0] + REG_VERSION);
if ((ver >> 16) != 0x0301) {
dev_warn(&pdev->dev, "PT%d, I/F-ver.:%d not supported",
ver >> 24, (ver & 0x00ff0000) >> 16);
ret = -ENODEV;
goto err_iounmap;
}
pt3->num_bufs = clamp_val(num_bufs, MIN_DATA_BUFS, MAX_DATA_BUFS);
pt3->i2c_buf = kmalloc(sizeof(*pt3->i2c_buf), GFP_KERNEL);
if (pt3->i2c_buf == NULL) {
dev_err(&pdev->dev, "Failed to alloc mem for i2c.\n");
ret = -ENOMEM;
goto err_iounmap;
}
i2c = &pt3->i2c_adap;
i2c->owner = THIS_MODULE;
i2c->algo = &pt3_i2c_algo;
i2c->algo_data = NULL;
i2c->dev.parent = &pdev->dev;
strlcpy(i2c->name, DRV_NAME, sizeof(i2c->name));
i2c_set_adapdata(i2c, pt3);
ret = i2c_add_adapter(i2c);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to add i2c adapter.\n");
goto err_i2cbuf;
}
for (i = 0; i < PT3_NUM_FE; i++) {
ret = pt3_alloc_adapter(pt3, i);
if (ret < 0)
break;
ret = pt3_attach_fe(pt3, i);
if (ret < 0)
break;
}
if (i < PT3_NUM_FE) {
dev_err(&pdev->dev, "Failed to create FE%d.\n", i);
goto err_cleanup_adapters;
}
ret = pt3_fe_init(pt3);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to init frontends.\n");
i = PT3_NUM_FE - 1;
goto err_cleanup_adapters;
}
dev_info(&pdev->dev,
"successfully init'ed PT%d (fw:0x%02x, I/F:0x%02x).\n",
ver >> 24, (ver >> 8) & 0xff, (ver >> 16) & 0xff);
return 0;
err_cleanup_adapters:
while (i >= 0)
pt3_cleanup_adapter(pt3, i--);
i2c_del_adapter(i2c);
err_i2cbuf:
kfree(pt3->i2c_buf);
err_iounmap:
if (pt3->regs[0])
pci_iounmap(pdev, pt3->regs[0]);
if (pt3->regs[1])
pci_iounmap(pdev, pt3->regs[1]);
err_kfree:
kfree(pt3);
err_release_regions:
pci_release_regions(pdev);
err_disable_device:
pci_disable_device(pdev);
return ret;
}
static const struct pci_device_id pt3_id_table[] = {
{ PCI_DEVICE_SUB(0x1172, 0x4c15, 0xee8d, 0x0368) },
{ },
};
MODULE_DEVICE_TABLE(pci, pt3_id_table);
static SIMPLE_DEV_PM_OPS(pt3_pm_ops, pt3_suspend, pt3_resume);
static struct pci_driver pt3_driver = {
.name = DRV_NAME,
.probe = pt3_probe,
.remove = pt3_remove,
.id_table = pt3_id_table,
.driver.pm = &pt3_pm_ops,
};
module_pci_driver(pt3_driver);
MODULE_DESCRIPTION("Earthsoft PT3 Driver");
MODULE_AUTHOR("Akihiro TSUKADA");
MODULE_LICENSE("GPL");

186
drivers/media/pci/pt3/pt3.h Normal file
View file

@ -0,0 +1,186 @@
/*
* Earthsoft PT3 driver
*
* Copyright (C) 2014 Akihiro Tsukada <tskd08@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 version 2.
*
*
* 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.
*/
#ifndef PT3_H
#define PT3_H
#include <linux/atomic.h>
#include <linux/types.h>
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dmxdev.h"
#include "tc90522.h"
#include "mxl301rf.h"
#include "qm1d1c0042.h"
#define DRV_NAME KBUILD_MODNAME
#define PT3_NUM_FE 4
/*
* register index of the FPGA chip
*/
#define REG_VERSION 0x00
#define REG_BUS 0x04
#define REG_SYSTEM_W 0x08
#define REG_SYSTEM_R 0x0c
#define REG_I2C_W 0x10
#define REG_I2C_R 0x14
#define REG_RAM_W 0x18
#define REG_RAM_R 0x1c
#define REG_DMA_BASE 0x40 /* regs for FE[i] = REG_DMA_BASE + 0x18 * i */
#define OFST_DMA_DESC_L 0x00
#define OFST_DMA_DESC_H 0x04
#define OFST_DMA_CTL 0x08
#define OFST_TS_CTL 0x0c
#define OFST_STATUS 0x10
#define OFST_TS_ERR 0x14
/*
* internal buffer for I2C
*/
#define PT3_I2C_MAX 4091
struct pt3_i2cbuf {
u8 data[PT3_I2C_MAX];
u8 tmp;
u32 num_cmds;
};
/*
* DMA things
*/
#define TS_PACKET_SZ 188
/* DMA transfers must not cross 4GiB, so use one page / transfer */
#define DATA_XFER_SZ 4096
#define DATA_BUF_XFERS 47
/* (num_bufs * DATA_BUF_SZ) % TS_PACKET_SZ must be 0 */
#define DATA_BUF_SZ (DATA_BUF_XFERS * DATA_XFER_SZ)
#define MAX_DATA_BUFS 16
#define MIN_DATA_BUFS 2
#define DESCS_IN_PAGE (PAGE_SIZE / sizeof(struct xfer_desc))
#define MAX_NUM_XFERS (MAX_DATA_BUFS * DATA_BUF_XFERS)
#define MAX_DESC_BUFS DIV_ROUND_UP(MAX_NUM_XFERS, DESCS_IN_PAGE)
/* DMA transfer description.
* device is passed a pointer to this struct, dma-reads it,
* and gets the DMA buffer ring for storing TS data.
*/
struct xfer_desc {
u32 addr_l; /* bus address of target data buffer */
u32 addr_h;
u32 size;
u32 next_l; /* bus adddress of the next xfer_desc */
u32 next_h;
};
/* A DMA mapping of a page containing xfer_desc's */
struct xfer_desc_buffer {
dma_addr_t b_addr;
struct xfer_desc *descs; /* PAGE_SIZE (xfer_desc[DESCS_IN_PAGE]) */
};
/* A DMA mapping of a data buffer */
struct dma_data_buffer {
dma_addr_t b_addr;
u8 *data; /* size: u8[PAGE_SIZE] */
};
/*
* device things
*/
struct pt3_adap_config {
struct i2c_board_info demod_info;
struct tc90522_config demod_cfg;
struct i2c_board_info tuner_info;
union tuner_config {
struct qm1d1c0042_config qm1d1c0042;
struct mxl301rf_config mxl301rf;
} tuner_cfg;
u32 init_freq;
};
struct pt3_adapter {
struct dvb_adapter dvb_adap; /* dvb_adap.priv => struct pt3_board */
int adap_idx;
struct dvb_demux demux;
struct dmxdev dmxdev;
struct dvb_frontend *fe;
struct i2c_client *i2c_demod;
struct i2c_client *i2c_tuner;
/* data fetch thread */
struct task_struct *thread;
int num_feeds;
bool cur_lna;
bool cur_lnb; /* current LNB power status (on/off) */
/* items below are for DMA */
struct dma_data_buffer buffer[MAX_DATA_BUFS];
int buf_idx;
int buf_ofs;
int num_bufs; /* == pt3_board->num_bufs */
int num_discard; /* how many access units to discard initially */
struct xfer_desc_buffer desc_buf[MAX_DESC_BUFS];
int num_desc_bufs; /* == num_bufs * DATA_BUF_XFERS / DESCS_IN_PAGE */
};
struct pt3_board {
struct pci_dev *pdev;
void __iomem *regs[2];
/* regs[0]: registers, regs[1]: internal memory, used for I2C */
struct mutex lock;
/* LNB power shared among sat-FEs */
int lnb_on_cnt; /* LNB power on count */
/* LNA shared among terr-FEs */
int lna_on_cnt; /* booster enabled count */
int num_bufs; /* number of DMA buffers allocated/mapped per FE */
struct i2c_adapter i2c_adap;
struct pt3_i2cbuf *i2c_buf;
struct pt3_adapter *adaps[PT3_NUM_FE];
};
/*
* prototypes
*/
extern int pt3_alloc_dmabuf(struct pt3_adapter *adap);
extern void pt3_init_dmabuf(struct pt3_adapter *adap);
extern void pt3_free_dmabuf(struct pt3_adapter *adap);
extern int pt3_start_dma(struct pt3_adapter *adap);
extern int pt3_stop_dma(struct pt3_adapter *adap);
extern int pt3_proc_dma(struct pt3_adapter *adap);
extern int pt3_i2c_master_xfer(struct i2c_adapter *adap,
struct i2c_msg *msgs, int num);
extern u32 pt3_i2c_functionality(struct i2c_adapter *adap);
extern void pt3_i2c_reset(struct pt3_board *pt3);
extern int pt3_init_all_demods(struct pt3_board *pt3);
extern int pt3_init_all_mxl301rf(struct pt3_board *pt3);
#endif /* PT3_H */

225
drivers/media/pci/pt3/pt3_dma.c Normal file
View file

@ -0,0 +1,225 @@
/*
* Earthsoft PT3 driver
*
* Copyright (C) 2014 Akihiro Tsukada <tskd08@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 version 2.
*
*
* 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.
*/
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include "pt3.h"
#define PT3_ACCESS_UNIT (TS_PACKET_SZ * 128)
#define PT3_BUF_CANARY (0x74)
static u32 get_dma_base(int idx)
{
int i;
i = (idx == 1 || idx == 2) ? 3 - idx : idx;
return REG_DMA_BASE + 0x18 * i;
}
int pt3_stop_dma(struct pt3_adapter *adap)
{
struct pt3_board *pt3 = adap->dvb_adap.priv;
u32 base;
u32 stat;
int retry;
base = get_dma_base(adap->adap_idx);
stat = ioread32(pt3->regs[0] + base + OFST_STATUS);
if (!(stat & 0x01))
return 0;
iowrite32(0x02, pt3->regs[0] + base + OFST_DMA_CTL);
for (retry = 0; retry < 5; retry++) {
stat = ioread32(pt3->regs[0] + base + OFST_STATUS);
if (!(stat & 0x01))
return 0;
msleep(50);
}
return -EIO;
}
int pt3_start_dma(struct pt3_adapter *adap)
{
struct pt3_board *pt3 = adap->dvb_adap.priv;
u32 base = get_dma_base(adap->adap_idx);
iowrite32(0x02, pt3->regs[0] + base + OFST_DMA_CTL);
iowrite32(lower_32_bits(adap->desc_buf[0].b_addr),
pt3->regs[0] + base + OFST_DMA_DESC_L);
iowrite32(upper_32_bits(adap->desc_buf[0].b_addr),
pt3->regs[0] + base + OFST_DMA_DESC_H);
iowrite32(0x01, pt3->regs[0] + base + OFST_DMA_CTL);
return 0;
}
static u8 *next_unit(struct pt3_adapter *adap, int *idx, int *ofs)
{
*ofs += PT3_ACCESS_UNIT;
if (*ofs >= DATA_BUF_SZ) {
*ofs -= DATA_BUF_SZ;
(*idx)++;
if (*idx == adap->num_bufs)
*idx = 0;
}
return &adap->buffer[*idx].data[*ofs];
}
int pt3_proc_dma(struct pt3_adapter *adap)
{
int idx, ofs;
idx = adap->buf_idx;
ofs = adap->buf_ofs;
if (adap->buffer[idx].data[ofs] == PT3_BUF_CANARY)
return 0;
while (*next_unit(adap, &idx, &ofs) != PT3_BUF_CANARY) {
u8 *p;
p = &adap->buffer[adap->buf_idx].data[adap->buf_ofs];
if (adap->num_discard > 0)
adap->num_discard--;
else if (adap->buf_ofs + PT3_ACCESS_UNIT > DATA_BUF_SZ) {
dvb_dmx_swfilter_packets(&adap->demux, p,
(DATA_BUF_SZ - adap->buf_ofs) / TS_PACKET_SZ);
dvb_dmx_swfilter_packets(&adap->demux,
adap->buffer[idx].data, ofs / TS_PACKET_SZ);
} else
dvb_dmx_swfilter_packets(&adap->demux, p,
PT3_ACCESS_UNIT / TS_PACKET_SZ);
*p = PT3_BUF_CANARY;
adap->buf_idx = idx;
adap->buf_ofs = ofs;
}
return 0;
}
void pt3_init_dmabuf(struct pt3_adapter *adap)
{
int idx, ofs;
u8 *p;
idx = 0;
ofs = 0;
p = adap->buffer[0].data;
/* mark the whole buffers as "not written yet" */
while (idx < adap->num_bufs) {
p[ofs] = PT3_BUF_CANARY;
ofs += PT3_ACCESS_UNIT;
if (ofs >= DATA_BUF_SZ) {
ofs -= DATA_BUF_SZ;
idx++;
p = adap->buffer[idx].data;
}
}
adap->buf_idx = 0;
adap->buf_ofs = 0;
}
void pt3_free_dmabuf(struct pt3_adapter *adap)
{
struct pt3_board *pt3;
int i;
pt3 = adap->dvb_adap.priv;
for (i = 0; i < adap->num_bufs; i++)
dma_free_coherent(&pt3->pdev->dev, DATA_BUF_SZ,
adap->buffer[i].data, adap->buffer[i].b_addr);
adap->num_bufs = 0;
for (i = 0; i < adap->num_desc_bufs; i++)
dma_free_coherent(&pt3->pdev->dev, PAGE_SIZE,
adap->desc_buf[i].descs, adap->desc_buf[i].b_addr);
adap->num_desc_bufs = 0;
}
int pt3_alloc_dmabuf(struct pt3_adapter *adap)
{
struct pt3_board *pt3;
void *p;
int i, j;
int idx, ofs;
int num_desc_bufs;
dma_addr_t data_addr, desc_addr;
struct xfer_desc *d;
pt3 = adap->dvb_adap.priv;
adap->num_bufs = 0;
adap->num_desc_bufs = 0;
for (i = 0; i < pt3->num_bufs; i++) {
p = dma_alloc_coherent(&pt3->pdev->dev, DATA_BUF_SZ,
&adap->buffer[i].b_addr, GFP_KERNEL);
if (p == NULL)
goto failed;
adap->buffer[i].data = p;
adap->num_bufs++;
}
pt3_init_dmabuf(adap);
/* build circular-linked pointers (xfer_desc) to the data buffers*/
idx = 0;
ofs = 0;
num_desc_bufs =
DIV_ROUND_UP(adap->num_bufs * DATA_BUF_XFERS, DESCS_IN_PAGE);
for (i = 0; i < num_desc_bufs; i++) {
p = dma_alloc_coherent(&pt3->pdev->dev, PAGE_SIZE,
&desc_addr, GFP_KERNEL);
if (p == NULL)
goto failed;
adap->num_desc_bufs++;
adap->desc_buf[i].descs = p;
adap->desc_buf[i].b_addr = desc_addr;
if (i > 0) {
d = &adap->desc_buf[i - 1].descs[DESCS_IN_PAGE - 1];
d->next_l = lower_32_bits(desc_addr);
d->next_h = upper_32_bits(desc_addr);
}
for (j = 0; j < DESCS_IN_PAGE; j++) {
data_addr = adap->buffer[idx].b_addr + ofs;
d = &adap->desc_buf[i].descs[j];
d->addr_l = lower_32_bits(data_addr);
d->addr_h = upper_32_bits(data_addr);
d->size = DATA_XFER_SZ;
desc_addr += sizeof(struct xfer_desc);
d->next_l = lower_32_bits(desc_addr);
d->next_h = upper_32_bits(desc_addr);
ofs += DATA_XFER_SZ;
if (ofs >= DATA_BUF_SZ) {
ofs -= DATA_BUF_SZ;
idx++;
if (idx >= adap->num_bufs) {
desc_addr = adap->desc_buf[0].b_addr;
d->next_l = lower_32_bits(desc_addr);
d->next_h = upper_32_bits(desc_addr);
return 0;
}
}
}
}
return 0;
failed:
pt3_free_dmabuf(adap);
return -ENOMEM;
}

240
drivers/media/pci/pt3/pt3_i2c.c Normal file
View file

@ -0,0 +1,240 @@
/*
* Earthsoft PT3 driver
*
* Copyright (C) 2014 Akihiro Tsukada <tskd08@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 version 2.
*
*
* 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.
*/
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/pci.h>
#include "pt3.h"
#define PT3_I2C_BASE 2048
#define PT3_CMD_ADDR_NORMAL 0
#define PT3_CMD_ADDR_INIT_DEMOD 4096
#define PT3_CMD_ADDR_INIT_TUNER (4096 + 2042)
/* masks for I2C status register */
#define STAT_SEQ_RUNNING 0x1
#define STAT_SEQ_ERROR 0x6
#define STAT_NO_SEQ 0x8
#define PT3_I2C_RUN (1 << 16)
#define PT3_I2C_RESET (1 << 17)
enum ctl_cmd {
I_END,
I_ADDRESS,
I_CLOCK_L,
I_CLOCK_H,
I_DATA_L,
I_DATA_H,
I_RESET,
I_SLEEP,
I_DATA_L_NOP = 0x08,
I_DATA_H_NOP = 0x0c,
I_DATA_H_READ = 0x0d,
I_DATA_H_ACK0 = 0x0e,
I_DATA_H_ACK1 = 0x0f,
};
static void cmdbuf_add(struct pt3_i2cbuf *cbuf, enum ctl_cmd cmd)
{
int buf_idx;
if ((cbuf->num_cmds % 2) == 0)
cbuf->tmp = cmd;
else {
cbuf->tmp |= cmd << 4;
buf_idx = cbuf->num_cmds / 2;
if (buf_idx < ARRAY_SIZE(cbuf->data))
cbuf->data[buf_idx] = cbuf->tmp;
}
cbuf->num_cmds++;
}
static void put_end(struct pt3_i2cbuf *cbuf)
{
cmdbuf_add(cbuf, I_END);
if (cbuf->num_cmds % 2)
cmdbuf_add(cbuf, I_END);
}
static void put_start(struct pt3_i2cbuf *cbuf)
{
cmdbuf_add(cbuf, I_DATA_H);
cmdbuf_add(cbuf, I_CLOCK_H);
cmdbuf_add(cbuf, I_DATA_L);
cmdbuf_add(cbuf, I_CLOCK_L);
}
static void put_byte_write(struct pt3_i2cbuf *cbuf, u8 val)
{
u8 mask;
mask = 0x80;
for (mask = 0x80; mask > 0; mask >>= 1)
cmdbuf_add(cbuf, (val & mask) ? I_DATA_H_NOP : I_DATA_L_NOP);
cmdbuf_add(cbuf, I_DATA_H_ACK0);
}
static void put_byte_read(struct pt3_i2cbuf *cbuf, u32 size)
{
int i, j;
for (i = 0; i < size; i++) {
for (j = 0; j < 8; j++)
cmdbuf_add(cbuf, I_DATA_H_READ);
cmdbuf_add(cbuf, (i == size - 1) ? I_DATA_H_NOP : I_DATA_L_NOP);
}
}
static void put_stop(struct pt3_i2cbuf *cbuf)
{
cmdbuf_add(cbuf, I_DATA_L);
cmdbuf_add(cbuf, I_CLOCK_H);
cmdbuf_add(cbuf, I_DATA_H);
}
/* translates msgs to internal commands for bit-banging */
static void translate(struct pt3_i2cbuf *cbuf, struct i2c_msg *msgs, int num)
{
int i, j;
bool rd;
cbuf->num_cmds = 0;
for (i = 0; i < num; i++) {
rd = !!(msgs[i].flags & I2C_M_RD);
put_start(cbuf);
put_byte_write(cbuf, msgs[i].addr << 1 | rd);
if (rd)
put_byte_read(cbuf, msgs[i].len);
else
for (j = 0; j < msgs[i].len; j++)
put_byte_write(cbuf, msgs[i].buf[j]);
}
if (num > 0) {
put_stop(cbuf);
put_end(cbuf);
}
}
static int wait_i2c_result(struct pt3_board *pt3, u32 *result, int max_wait)
{
int i;
u32 v;
for (i = 0; i < max_wait; i++) {
v = ioread32(pt3->regs[0] + REG_I2C_R);
if (!(v & STAT_SEQ_RUNNING))
break;
usleep_range(500, 750);
}
if (i >= max_wait)
return -EIO;
if (result)
*result = v;
return 0;
}
/* send [pre-]translated i2c msgs stored at addr */
static int send_i2c_cmd(struct pt3_board *pt3, u32 addr)
{
u32 ret;
/* make sure that previous transactions had finished */
if (wait_i2c_result(pt3, NULL, 50)) {
dev_warn(&pt3->pdev->dev, "(%s) prev. transaction stalled\n",
__func__);
return -EIO;
}
iowrite32(PT3_I2C_RUN | addr, pt3->regs[0] + REG_I2C_W);
usleep_range(200, 300);
/* wait for the current transaction to finish */
if (wait_i2c_result(pt3, &ret, 500) || (ret & STAT_SEQ_ERROR)) {
dev_warn(&pt3->pdev->dev, "(%s) failed.\n", __func__);
return -EIO;
}
return 0;
}
/* init commands for each demod are combined into one transaction
* and hidden in ROM with the address PT3_CMD_ADDR_INIT_DEMOD.
*/
int pt3_init_all_demods(struct pt3_board *pt3)
{
ioread32(pt3->regs[0] + REG_I2C_R);
return send_i2c_cmd(pt3, PT3_CMD_ADDR_INIT_DEMOD);
}
/* init commands for two ISDB-T tuners are hidden in ROM. */
int pt3_init_all_mxl301rf(struct pt3_board *pt3)
{
usleep_range(1000, 2000);
return send_i2c_cmd(pt3, PT3_CMD_ADDR_INIT_TUNER);
}
void pt3_i2c_reset(struct pt3_board *pt3)
{
iowrite32(PT3_I2C_RESET, pt3->regs[0] + REG_I2C_W);
}
/*
* I2C algorithm
*/
int
pt3_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
{
struct pt3_board *pt3;
struct pt3_i2cbuf *cbuf;
int i;
void __iomem *p;
pt3 = i2c_get_adapdata(adap);
cbuf = pt3->i2c_buf;
for (i = 0; i < num; i++)
if (msgs[i].flags & I2C_M_RECV_LEN) {
dev_warn(&pt3->pdev->dev,
"(%s) I2C_M_RECV_LEN not supported.\n",
__func__);
return -EINVAL;
}
translate(cbuf, msgs, num);
memcpy_toio(pt3->regs[1] + PT3_I2C_BASE + PT3_CMD_ADDR_NORMAL / 2,
cbuf->data, cbuf->num_cmds);
if (send_i2c_cmd(pt3, PT3_CMD_ADDR_NORMAL) < 0)
return -EIO;
p = pt3->regs[1] + PT3_I2C_BASE;
for (i = 0; i < num; i++)
if ((msgs[i].flags & I2C_M_RD) && msgs[i].len > 0) {
memcpy_fromio(msgs[i].buf, p, msgs[i].len);
p += msgs[i].len;
}
return num;
}
u32 pt3_i2c_functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C;
}