/***************************************************************************** Copyright(c) 2013 FCI Inc. All Rights Reserved File name : fc8180.c Description : Driver source file 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA History : ---------------------------------------------------------------------- *******************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fc8180.h" #include "bbm.h" #include "fci_oal.h" #include "fci_tun.h" #include "fc8180_regs.h" #include "fc8180_isr.h" #include "fci_hal.h" #include "isdbt_tuner_pdata.h" struct ISDBT_INIT_INFO_T *hInit; static struct wake_lock isdbt_wlock; int bbm_xtal_freq; unsigned int fc8300_xtal_freq; #define RING_BUFFER_SIZE (188 * 32 * 50) /* GPIO(RESET & INTRRUPT) Setting */ #define FC8180_NAME "isdbt" static struct isdbt_platform_data *isdbt_pdata; #define TS0_32PKT_LENGTH (188 * 37) /* compatible pkt rate: 5, 37, 97, 177, 277 */ #define ISDBT_LDO_ON 1 #define ISDBT_LDO_OFF 0 u8 static_ringbuffer[RING_BUFFER_SIZE]; enum ISDBT_MODE driver_mode = ISDBT_POWEROFF; static DEFINE_MUTEX(ringbuffer_lock); static DECLARE_WAIT_QUEUE_HEAD(isdbt_isr_wait); #ifndef BBM_I2C_TSIF static u8 isdbt_isr_sig; static struct task_struct *isdbt_kthread; static irqreturn_t isdbt_irq(int irq, void *dev_id) { isdbt_isr_sig = 1; wake_up_interruptible(&isdbt_isr_wait); return IRQ_HANDLED; } #endif int isdbt_hw_setting(void) { int err; pr_err("%s\n", __func__); err = gpio_request(isdbt_pdata->gpio_en, "isdbt_en"); if (err) { pr_err("isdbt_hw_setting: Couldn't request isdbt_en err=%d\n", err); goto ISBT_EN_ERR; } gpio_direction_output(isdbt_pdata->gpio_en, 0); #ifndef BBM_I2C_TSIF err = gpio_request(isdbt_pdata->gpio_int, "isdbt_irq"); if (err) { pr_err("isdbt_hw_setting: Couldn't request isdbt_irq\n"); goto ISDBT_INT_ERR; } gpio_direction_input(isdbt_pdata->gpio_int); err = request_irq(gpio_to_irq(isdbt_pdata->gpio_int), isdbt_irq , IRQF_DISABLED | IRQF_TRIGGER_FALLING, FC8180_NAME, NULL); if (err < 0) { print_log(0, "isdbt_hw_setting: couldn't request gpio interrupt %d reason(%d)\n" , gpio_to_irq(isdbt_pdata->gpio_int), err); goto request_isdbt_irq; } #endif return 0; #ifndef BBM_I2C_TSIF request_isdbt_irq: gpio_free(isdbt_pdata->gpio_int); ISDBT_INT_ERR: gpio_free(isdbt_pdata->gpio_en); #endif ISBT_EN_ERR: return err; } static void isdbt_gpio_init(void) { pr_err("%s\n", __func__); /* if (pinctrl_select_state(isdbt_pdata->isdb_pinctrl, isdbt_pdata->pwr_on)) { pr_err("%s: Failed to configure isdb_on\n", __func__); gpio_free(isdbt_pdata->gpio_en); gpio_free(isdbt_pdata->gpio_rst); if (isdbt_pdata->gpio_int) gpio_free(isdbt_pdata->gpio_int); } */ isdbt_hw_setting(); } static void isdbt_regulator_onoff(int onoff) { int rc = 0; struct regulator *regulator_vdd_1p8; if (isdbt_pdata->ldo_vdd_1p8 == NULL) { pr_err("%s - ldo_vdd_1p8 regulator is not present. Hence ignoring the setting \n", __func__); return; } if (isdbt_pdata->regulator_is_enable == onoff) { pr_err("ISDBT duplicate regulator setting. Already in %s state", onoff ? "ON" : "OFF"); return; } regulator_vdd_1p8 = regulator_get(NULL, isdbt_pdata->ldo_vdd_1p8); if (IS_ERR(regulator_vdd_1p8) || regulator_vdd_1p8 == NULL) { pr_err("%s - ldo_vdd_1p8 regulator_get fail\n", __func__); return; } pr_info("%s - onoff = %d\n", __func__, onoff); if (onoff == ISDBT_LDO_ON) { /* voltage setting is not allowed for LDO 23 rc = regulator_set_voltage(regulator_vdd_1p8, 1800000, 1800000); if (rc < 0) { pr_err("%s - set 1p8v failed, rc=%d\n", __func__, rc); goto done; } */ rc = regulator_enable(regulator_vdd_1p8); if (rc) { pr_err("%s - enable vdd_1p8 failed, rc=%d\n", __func__, rc); goto done; } } else { rc = regulator_disable(regulator_vdd_1p8); if (rc) { pr_err("%s - disable vdd_1p8 failed, rc=%d\n", __func__, rc); goto done; } } isdbt_pdata->regulator_is_enable = (u8)onoff; done: regulator_put(regulator_vdd_1p8); return; } /*POWER_ON & HW_RESET & INTERRUPT_CLEAR */ void isdbt_hw_init(void) { int i = 0; isdbt_regulator_onoff(ISDBT_LDO_ON); #ifdef CONFIG_ISDBT_GPIO_CLK pinctrl_select_state(isdbt_pdata->isdbt_pinctrl, isdbt_pdata->isdbt_on); #else clk_prepare_enable(isdbt_pdata->isdbt_clk); pr_err("%s, Enabling ISDBT_CLK\n", __func__); #endif while (driver_mode == ISDBT_DATAREAD) { ms_wait(100); if (i++ > 5) break; } pr_err("%s\n", __func__); gpio_direction_output(isdbt_pdata->gpio_en, 1); pr_err("%s, gpio_en =%d\n", __func__, gpio_get_value(isdbt_pdata->gpio_en)); mdelay(30); driver_mode = ISDBT_POWERON; } /*POWER_OFF */ void isdbt_hw_deinit(void) { #ifdef CONFIG_ISDBT_GPIO_CLK pinctrl_select_state(isdbt_pdata->isdbt_pinctrl, isdbt_pdata->isdbt_off); #else clk_disable_unprepare(isdbt_pdata->isdbt_clk); pr_err("%s, Turning ISDBT_CLK off\n", __func__); #endif driver_mode = ISDBT_POWEROFF; gpio_direction_output(isdbt_pdata->gpio_en, 0); mdelay(5); isdbt_regulator_onoff(ISDBT_LDO_OFF); } int data_callback(ulong hDevice, u8 *data, int len) { struct ISDBT_INIT_INFO_T *hInit; struct list_head *temp; hInit = (struct ISDBT_INIT_INFO_T *)hDevice; list_for_each(temp, &(hInit->hHead)) { struct ISDBT_OPEN_INFO_T *hOpen; hOpen = list_entry(temp, struct ISDBT_OPEN_INFO_T, hList); if (hOpen->isdbttype == TS_TYPE) { mutex_lock(&ringbuffer_lock); if (fci_ringbuffer_free(&hOpen->RingBuffer) < len) { /* return 0 */; FCI_RINGBUFFER_SKIP(&hOpen->RingBuffer, len); } fci_ringbuffer_write(&hOpen->RingBuffer, data, len); wake_up_interruptible(&(hOpen->RingBuffer.queue)); mutex_unlock(&ringbuffer_lock); } } return 0; } #ifndef BBM_I2C_TSIF static int isdbt_thread(void *hDevice) { struct ISDBT_INIT_INFO_T *hInit = (struct ISDBT_INIT_INFO_T *)hDevice; set_user_nice(current, -20); pr_err("isdbt_kthread enter\n"); bbm_com_ts_callback_register((ulong)hInit, data_callback); while (1) { wait_event_interruptible(isdbt_isr_wait, isdbt_isr_sig || kthread_should_stop()); if (driver_mode == ISDBT_POWERON) { driver_mode = ISDBT_DATAREAD; bbm_com_isr(hInit); driver_mode = ISDBT_POWERON; } isdbt_isr_sig = 0; if (kthread_should_stop()) break; } bbm_com_ts_callback_deregister(); pr_err("isdbt_kthread exit\n"); return 0; } #endif const struct file_operations isdbt_fops = { .owner = THIS_MODULE, .unlocked_ioctl = isdbt_ioctl, .open = isdbt_open, .read = isdbt_read, .release = isdbt_release, #ifdef CONFIG_COMPAT .compat_ioctl = isdbt_ioctl, #endif }; static struct miscdevice fc8180_misc_device = { .minor = MISC_DYNAMIC_MINOR, .name = FC8180_NAME, .fops = &isdbt_fops, }; int isdbt_open(struct inode *inode, struct file *filp) { struct ISDBT_OPEN_INFO_T *hOpen; pr_err("isdbt open\n"); hOpen = kmalloc(sizeof(struct ISDBT_OPEN_INFO_T), GFP_KERNEL); if (!hOpen) { pr_err("ISDBT hOpen malloc failed ENOMEM\n"); return -ENOMEM; } hOpen->buf = &static_ringbuffer[0]; /*kmalloc(RING_BUFFER_SIZE, GFP_KERNEL);*/ hOpen->isdbttype = 0; list_add(&(hOpen->hList), &(hInit->hHead)); hOpen->hInit = (HANDLE *)hInit; if (hOpen->buf == NULL) { pr_err("ISDBT ring buffer malloc error\n"); return -ENOMEM; } fci_ringbuffer_init(&hOpen->RingBuffer, hOpen->buf, RING_BUFFER_SIZE); filp->private_data = hOpen; wake_lock(&isdbt_wlock); return 0; } ssize_t isdbt_read(struct file *filp, char *buf, size_t count, loff_t *f_pos) { s32 avail; s32 non_blocking = filp->f_flags & O_NONBLOCK; struct ISDBT_OPEN_INFO_T *hOpen = (struct ISDBT_OPEN_INFO_T *)filp->private_data; struct fci_ringbuffer *cibuf = &hOpen->RingBuffer; ssize_t len, read_len = 0; if (!cibuf->data || !count) { /*pr_err(" return 0\n"); */ return 0; } if (non_blocking && (fci_ringbuffer_empty(cibuf))) { /*pr_err("return EWOULDBLOCK\n"); */ return -EWOULDBLOCK; } if (wait_event_interruptible(cibuf->queue, !fci_ringbuffer_empty(cibuf))) { pr_err("return ERESTARTSYS\n"); return -ERESTARTSYS; } mutex_lock(&ringbuffer_lock); avail = fci_ringbuffer_avail(cibuf); if (count >= avail) len = avail; else len = count - (count % 188); read_len = fci_ringbuffer_read_user(cibuf, buf, len); mutex_unlock(&ringbuffer_lock); return read_len; } int isdbt_release(struct inode *inode, struct file *filp) { struct ISDBT_OPEN_INFO_T *hOpen; pr_err("isdbt_release\n"); hOpen = filp->private_data; if (hOpen != NULL) { hOpen->isdbttype = 0; list_del(&(hOpen->hList)); pr_err("isdbt_release hList\n"); /*kfree(hOpen->buf);*/ kfree(hOpen); } if (isdbt_pdata->regulator_is_enable) isdbt_regulator_onoff(ISDBT_LDO_OFF); wake_unlock(&isdbt_wlock); return 0; } #ifndef BBM_I2C_TSIF void isdbt_isr_check(HANDLE hDevice) { u8 isr_time = 0; bbm_com_write(hDevice, BBM_BUF_ENABLE, 0x00); while (isr_time < 10) { if (!isdbt_isr_sig) break; ms_wait(10); isr_time++; } } #endif static ssize_t isdbt_ber_show(struct class *dev, struct class_attribute *attr, char *buf) { int type = 0; sprintf(buf, "%d,%d", type, isdbt_pdata->BER); pr_info("%s, type:%d, ber:%d\n", __func__, type, isdbt_pdata->BER); return strlen(buf); } static CLASS_ATTR(ber, 0444, isdbt_ber_show, NULL); long isdbt_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { s32 res = BBM_NOK; s32 err = 0; s32 size = 0; struct ISDBT_OPEN_INFO_T *hOpen; struct ioctl_info info; if (_IOC_TYPE(cmd) != IOCTL_MAGIC) return -EINVAL; if (_IOC_NR(cmd) >= IOCTL_MAXNR) return -EINVAL; hOpen = filp->private_data; size = _IOC_SIZE(cmd); switch (cmd) { case IOCTL_ISDBT_RESET: res = bbm_com_reset(hInit); pr_err("[FC8180] IOCTL_ISDBT_RESET\n"); break; case IOCTL_ISDBT_INIT: pr_err("[FC8180] IOCTL_ISDBT_INIT\n"); #ifdef BBM_SPI_IF bbm_com_byte_write(hInit, BBM_DM_DATA, 0x00); #endif res = bbm_com_i2c_init(hInit, FCI_HPI_TYPE); pr_err("[FC8180] IOCTL_ISDBT_INIT bbm_com_i2c_init res =%d\n", res); res |= bbm_com_probe(hInit); if (res) { pr_err("FC8180 Initialize Fail\n"); break; } pr_err("[FC8180] IOCTL_ISDBT_INIT bbm_com_probe success\n"); res = bbm_com_init(hInit); pr_err("[FC8180] IOCTL_ISDBT_INITbbm_com_init\n"); res |= bbm_com_tuner_select(hInit, FC8180_TUNER, 0); break; case IOCTL_ISDBT_BYTE_READ: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_byte_read(hInit, (u16)info.buff[0] , (u8 *)(&info.buff[1])); err |= copy_to_user((void *)arg, (void *)&info, size); break; case IOCTL_ISDBT_WORD_READ: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_word_read(hInit, (u16)info.buff[0] , (u16 *)(&info.buff[1])); err |= copy_to_user((void *)arg, (void *)&info, size); break; case IOCTL_ISDBT_LONG_READ: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_long_read(hInit, (u16)info.buff[0] , (u32 *)(&info.buff[1])); err |= copy_to_user((void *)arg, (void *)&info, size); break; case IOCTL_ISDBT_BULK_READ: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_bulk_read(hInit, (u16)info.buff[0] , (u8 *)(&info.buff[2]), info.buff[1]); err |= copy_to_user((void *)arg, (void *)&info, size); break; case IOCTL_ISDBT_BYTE_WRITE: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_byte_write(hInit, (u16)info.buff[0] , (u8)info.buff[1]); break; case IOCTL_ISDBT_WORD_WRITE: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_word_write(hInit, (u16)info.buff[0] , (u16)info.buff[1]); break; case IOCTL_ISDBT_LONG_WRITE: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_long_write(hInit, (u16)info.buff[0] , (u32)info.buff[1]); break; case IOCTL_ISDBT_BULK_WRITE: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_bulk_write(hInit, (u16)info.buff[0] , (u8 *)(&info.buff[2]), info.buff[1]); break; case IOCTL_ISDBT_TUNER_READ: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_tuner_read(hInit, (u8)info.buff[0] , (u8)info.buff[1], (u8 *)(&info.buff[3]) , (u8)info.buff[2]); err |= copy_to_user((void *)arg, (void *)&info, size); break; case IOCTL_ISDBT_TUNER_WRITE: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_tuner_write(hInit, (u8)info.buff[0] , (u8)info.buff[1], (u8 *)(&info.buff[3]) , (u8)info.buff[2]); break; case IOCTL_ISDBT_TUNER_SET_FREQ: { u32 f_rf; err = copy_from_user((void *)&info, (void *)arg, size); f_rf = (u32)info.buff[0]; pr_err("[FC8180] IOCTL_ISDBT_TUNER_SET_FREQ freq=%d\n", f_rf); #ifndef BBM_I2C_TSIF isdbt_isr_check(hInit); #endif res = bbm_com_tuner_set_freq(hInit, f_rf); #ifndef BBM_I2C_TSIF mutex_lock(&ringbuffer_lock); fci_ringbuffer_flush(&hOpen->RingBuffer); mutex_unlock(&ringbuffer_lock); bbm_com_write(hInit, BBM_BUF_ENABLE, 0x01); #endif } break; case IOCTL_ISDBT_TUNER_SELECT: pr_err("[FC8180] IOCTL_ISDBT_TUNER_SELECT\n"); err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_tuner_select(hInit , (u32)info.buff[0], (u32)info.buff[1]); bbm_com_byte_write(hInit, BBM_BUF_ENABLE, 0x00); bbm_com_word_write(hInit, BBM_BUF_TS_END, (TS0_32PKT_LENGTH * 2) - 1); bbm_com_word_write(hInit, BBM_BUF_TS_THR, (TS0_32PKT_LENGTH - 1)); bbm_com_byte_write(hInit, BBM_BUF_ENABLE, 0x01); print_log(hInit, "[FC8180] IOCTL_ISDBT_TUNER_SELECT %d\n" , (u32)info.buff[1]); break; case IOCTL_ISDBT_RF_BER: err = copy_from_user((void *)&info, (void *)arg, size); pr_err("[FC8300] IOCTL_ISDBT_RF_BER, CN(%d), BER_A(%d), BER_B(%d)\n", (u8)info.buff[0], (u32)info.buff[1], (u32)info.buff[2]); isdbt_pdata->BER = (int)info.buff[1]; res = 0; break; case IOCTL_ISDBT_TS_START: pr_err("[FC8180] IOCTL_ISDBT_TS_START\n"); hOpen->isdbttype = TS_TYPE; break; case IOCTL_ISDBT_TS_STOP: pr_err("[FC8180] IOCTL_ISDBT_TS_STOP\n"); hOpen->isdbttype = 0; break; case IOCTL_ISDBT_POWER_ON: pr_err("[FC8180] IOCTL_ISDBT_POWER_ON\n"); isdbt_hw_init(); #ifdef BBM_SPI_IF bbm_com_byte_write(hInit, BBM_DM_DATA, 0x00); #endif res = bbm_com_i2c_init(hInit, FCI_HPI_TYPE); pr_err("[FC8180] IOCTL_ISDBT_POWER_ON bbm_com_i2c_init res =%d\n", res); res |= bbm_com_probe(hInit); if (res) { pr_err("FC8180 Initialize Fail\n"); isdbt_hw_deinit(); } else { pr_err("FC8180 IOCTL_ISDBT_POWER_ON SUCCESS\n"); } break; case IOCTL_ISDBT_POWER_OFF: pr_err("[FC8180] IOCTL_ISDBT_POWER_OFF\n"); isdbt_hw_deinit(); break; case IOCTL_ISDBT_SCAN_STATUS: res = bbm_com_scan_status(hInit); pr_err("[FC8180] IOCTL_ISDBT_SCAN_STATUS : %d\n", res); break; case IOCTL_ISDBT_TUNER_GET_RSSI: err = copy_from_user((void *)&info, (void *)arg, size); res = bbm_com_tuner_get_rssi(hInit, (s32 *)&info.buff[0]); err |= copy_to_user((void *)arg, (void *)&info, size); break; default: pr_err("isdbt ioctl error!\n"); res = BBM_NOK; break; } if (err < 0) { pr_err("copy to/from user fail : %d", err); res = BBM_NOK; } return res; } static struct isdbt_platform_data *isdbt_populate_dt_pdata(struct device *dev) { struct isdbt_platform_data *pdata; #ifndef CONFIG_ISDBT_GPIO_CLK const char *temp_string = NULL; int ret = 0; #endif pr_err("%s\n", __func__); pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) { pr_err("%s : could not allocate memory for platform data\n", __func__); goto err; } of_property_read_u32(dev->of_node, "isdbt,isdb-bbm-xtal-freq", &bbm_xtal_freq); if (bbm_xtal_freq < 0) { pr_err("%s : can not find the isdbt-bbmxtal-freq in the dt, set to : 26000\n", __func__); bbm_xtal_freq = 26000; } pdata->gpio_en = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-pwr-en", 0); if (pdata->gpio_en < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-gpio-pwr-en", &pdata->gpio_en); if (pdata->gpio_en < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_en in the dt\n", __func__); goto alloc_err; } else { pr_err("%s : isdbt-detect-gpio gpio_en =%d\n", __func__, pdata->gpio_en); } pdata->gpio_cp_dt = of_get_named_gpio(dev->of_node, "isdbt,isdb-cp-detect", 0); if (pdata->gpio_cp_dt < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-cp-detect", &pdata->gpio_cp_dt); if (pdata->gpio_cp_dt < 0) pr_err("%s : can not find the isdb-cp-detect gpio_cp_dt in the dt\n", __func__); else pr_err("%s : isdbt-detect-gpio gpio_cp_dt =%d\n", __func__, pdata->gpio_cp_dt); /* pdata->gpio_rst = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-rst", 0); if (pdata->gpio_rst < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-gpio-rst", &pdata->gpio_rst); if (pdata->gpio_rst < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_rst in the dt\n", __func__); goto alloc_err; } else { pr_err("%s : isdbt-detect-gpio gpio_rst =%d\n", __func__, pdata->gpio_rst); } pdata->isdb_pinctrl = devm_pinctrl_get(dev); if (IS_ERR(pdata->isdb_pinctrl)) { pr_err("devm_pinctrl_get is fail"); goto alloc_err; } pdata->pwr_on = pinctrl_lookup_state(pdata->isdb_pinctrl, "isdb_on"); if(IS_ERR(pdata->pwr_on)) { pr_err("%s : could not get pins isdb_on state (%li)\n", __func__, PTR_ERR(pdata->pwr_on)); goto err_pinctrl_lookup_state; } pdata->gpio_init = pinctrl_lookup_state(pdata->isdb_pinctrl, "isdb_gpio_init"); if(IS_ERR(pdata->gpio_init)) { pr_err("%s : could not get pins isdb_gpio_init state (%li)\n", __func__, PTR_ERR(pdata->pwr_off)); goto err_pinctrl_lookup_state; } pdata->pwr_off = pinctrl_lookup_state(pdata->isdb_pinctrl, "isdb_off"); if(IS_ERR(pdata->pwr_off)) { pr_err("%s : could not get pins isdb_off state (%li)\n", __func__, PTR_ERR(pdata->pwr_off)); goto err_pinctrl_lookup_state; } */ #ifndef BBM_I2C_TSIF pdata->gpio_int = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-irq", 0); if (pdata->gpio_int < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-gpio-irq", &pdata->gpio_int); if (pdata->gpio_int < 0) { pr_err("%s : can not find the isdbt-detect-gpio in the gpio_int dt\n", __func__); goto alloc_err; } else { pr_err("%s : isdbt-detect-gpio gpio_int =%d\n", __func__, pdata->gpio_int); } #endif #ifndef CONFIG_ISDBT_FC8180_SPI pdata->gpio_i2c_sda = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-i2c_sda", 0); if (pdata->gpio_i2c_sda < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-gpio-i2c_sda", &pdata->gpio_i2c_sda); if (pdata->gpio_i2c_sda < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_i2c_sda in the dt\n", __func__); goto alloc_err; } else { pr_err("%s : isdbt-detect-gpio gpio_i2c_sda=%d\n", __func__, pdata->gpio_i2c_sda); } pdata->gpio_i2c_scl = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-i2c_scl", 0); if (pdata->gpio_i2c_scl < 0) of_property_read_u32(dev->of_node, "isdbt,isdb-gpio-i2c_scl", &pdata->gpio_i2c_scl); if (pdata->gpio_i2c_scl < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_i2c_scl in the dt\n", __func__); goto alloc_err; } else { pr_err("%s : isdbt-detect-gpio gpio_i2c_scl=%d\n", __func__, pdata->gpio_i2c_scl); } #endif pdata->gpio_spi_do = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-spi_do", 0); if (pdata->gpio_spi_do < 0) { pr_err("%s : can not find the isdbt-detect-gpio in the gpio_spi_do dt\n", __func__); goto alloc_err; } else pr_err("%s : isdbt-detect-gpio gpio_spi_do =%d\n", __func__, pdata->gpio_spi_do); pdata->gpio_spi_di = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-spi_di", 0); if (pdata->gpio_spi_di < 0) { pr_err("%s : can not find the isdbt-detect-gpio in the gpio_spi_di dt\n", __func__); goto alloc_err; } else pr_err("%s : isdbt-detect-gpio gpio_spi_di =%d\n", __func__, pdata->gpio_spi_di); pdata->gpio_spi_cs = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-spi_cs", 0); if (pdata->gpio_spi_cs < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_spi_cs in the dt\n", __func__); goto alloc_err; } else pr_err("%s : isdbt-detect-gpio gpio_spi_cs=%d\n", __func__, pdata->gpio_spi_cs); pdata->gpio_spi_clk = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-spi_clk", 0); if (pdata->gpio_spi_clk < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_spi_clk in the dt\n", __func__); goto alloc_err; } else pr_err("%s : isdbt-detect-gpio gpio_spi_clk=%d\n", __func__, pdata->gpio_spi_clk); #ifdef CONFIG_ISDBT_GPIO_CLK pdata->gpio_clk = of_get_named_gpio(dev->of_node, "isdbt,isdb-gpio-clk", 0); if (pdata->gpio_clk < 0) { pr_err("%s : can not find the isdbt-detect-gpio gpio_clk in the dt\n", __func__); } else { pr_err("%s : isdbt-detect-gpio gpio_clk = %d\n", __func__, pdata->gpio_clk); } #else ret = of_property_read_string(dev->of_node, "clock-names", &temp_string); if (ret) pr_err("isdbt : %s: cannot get clock name(%d)", __func__, ret); pdata->isdbt_clk = clk_get(dev, temp_string); if (pdata->isdbt_clk < 0) pr_err("isdbt : %s: cannot get clock", __func__); #endif if (of_property_read_string(dev->of_node, "isdbt,ldo_vdd_1p8", &pdata->ldo_vdd_1p8) < 0) pr_err("%s - get ldo_vdd_1p8 error\n", __func__); return pdata; alloc_err: devm_kfree(dev, pdata); err: return NULL; } #ifdef CONFIG_ISDBT_GPIO_CLK static int isdbt_pinctrl(struct device *dev, struct isdbt_platform_data *pdata) { int ret = 0; /* get the pinctrl handler for the device */ pdata->isdbt_pinctrl = devm_pinctrl_get(dev); if (IS_ERR(pdata->isdbt_pinctrl)) { pr_err(" fc8180 does not use pinctrl\n"); pdata->isdbt_pinctrl = NULL; } else { /* Get the pinctrl for the Active & Suspend states */ pdata->isdbt_off = pinctrl_lookup_state(pdata->isdbt_pinctrl, "isdbt_off"); if (IS_ERR(pdata->isdbt_off)) { pr_info("%s fail due to isdbt_off state not found\n", __func__); goto err_exit; } pdata->isdbt_on = pinctrl_lookup_state(pdata->isdbt_pinctrl, "isdbt_on"); if (IS_ERR(pdata->isdbt_on)) { pr_info("%s fail due to isdbt_on state not found\n", __func__); goto err_exit; } /* Need not call the devm_pinctrl_put() as the handler will be automatically freed when the device is removed */ } err_exit: return ret; } #endif static int isdbt_probe(struct platform_device *pdev) { int res = 0; static struct class *isdbt_class; pr_err("%s\n", __func__); isdbt_pdata = isdbt_populate_dt_pdata(&pdev->dev); if (!isdbt_pdata) { pr_err("%s : isdbt_pdata is NULL.\n", __func__); return -ENODEV; } #ifdef CONFIG_ISDBT_GPIO_CLK res = isdbt_pinctrl(&pdev->dev, isdbt_pdata); pinctrl_select_state(isdbt_pdata->isdbt_pinctrl, isdbt_pdata->isdbt_off); #endif isdbt_gpio_init(); fc8300_xtal_freq = bbm_xtal_freq; res = misc_register(&fc8180_misc_device); if (res < 0) { pr_err("isdbt init fail : %d\n", res); return res; } hInit = kmalloc(sizeof(struct ISDBT_INIT_INFO_T), GFP_KERNEL); #if defined(BBM_I2C_TSIF) || defined(BBM_I2C_SPI) res = bbm_com_hostif_select(hInit, BBM_I2C); pr_err("isdbt host interface select BBM_I2C!\n"); #else pr_err("isdbt host interface select BBM_SPI !\n"); res = bbm_com_hostif_select(hInit, BBM_SPI); #endif if (res) pr_err("isdbt host interface select fail!\n"); #ifndef BBM_I2C_TSIF if (!isdbt_kthread) { pr_err("kthread run\n"); isdbt_kthread = kthread_run(isdbt_thread , (void *)hInit, "isdbt_thread"); } #endif INIT_LIST_HEAD(&(hInit->hHead)); isdbt_class = class_create(THIS_MODULE, "isdbt"); if (IS_ERR(isdbt_class)) { pr_err("%s : class_create failed!\n", __func__); } else { res = class_create_file(isdbt_class, &class_attr_ber); if (res) pr_err("%s : failed to create device file in sysfs entries!\n", __func__); } wake_lock_init(&isdbt_wlock, WAKE_LOCK_SUSPEND, "isdbt_wlock"); return 0; } static int isdbt_remove(struct platform_device *pdev) { pr_err("ISDBT remove\n"); wake_lock_destroy(&isdbt_wlock); return 0; } static int isdbt_suspend(struct platform_device *pdev, pm_message_t mesg) { int value; value = gpio_get_value_cansleep(isdbt_pdata->gpio_en); pr_err("%s value = %d\n", __func__, value); if (value == 1) gpio_direction_output(isdbt_pdata->gpio_en, 0); return 0; } static int isdbt_resume(struct platform_device *pdev) { return 0; } static const struct of_device_id isdbt_match_table[] = { { .compatible = "isdb_fc8300_pdata", }, {} }; static struct platform_driver isdb_fc8180_driver = { .driver = { .owner = THIS_MODULE, .name = "isdbt", .of_match_table = isdbt_match_table, }, .probe = isdbt_probe, .remove = isdbt_remove, .suspend = isdbt_suspend, .resume = isdbt_resume, }; int isdbt_init(void) { s32 res; pr_err("isdbt_fc8180_init started\n"); res = platform_driver_register(&isdb_fc8180_driver); if (res < 0) { pr_err("isdbt init fail : %d\n", res); return res; } return 0; } void isdbt_exit(void) { pr_err("isdb_fc8300_exit\n"); #ifndef BBM_I2C_TSIF free_irq(gpio_to_irq(isdbt_pdata->gpio_int), NULL); gpio_free(isdbt_pdata->gpio_int); #endif gpio_free(isdbt_pdata->gpio_en); #ifndef BBM_I2C_TSIF if (isdbt_kthread) kthread_stop(isdbt_kthread); isdbt_kthread = NULL; #endif bbm_com_hostif_deselect(hInit); isdbt_hw_deinit(); platform_driver_unregister(&isdb_fc8180_driver); misc_deregister(&fc8180_misc_device); if (hInit != NULL) kfree(hInit); } module_init(isdbt_init); module_exit(isdbt_exit); MODULE_LICENSE("Dual BSD/GPL");