| /* |
| * Driver for the Texas Instruments WL1273 FM radio. |
| * |
| * Copyright (C) 2011 Nokia Corporation |
| * Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| * |
| * 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/firmware.h> |
| #include <linux/interrupt.h> |
| #include <linux/mfd/wl1273-core.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-ctrls.h> |
| #include <media/v4l2-device.h> |
| #include <media/v4l2-ioctl.h> |
| |
| #define DRIVER_DESC "Wl1273 FM Radio" |
| |
| #define WL1273_POWER_SET_OFF 0 |
| #define WL1273_POWER_SET_FM BIT(0) |
| #define WL1273_POWER_SET_RDS BIT(1) |
| #define WL1273_POWER_SET_RETENTION BIT(4) |
| |
| #define WL1273_PUPD_SET_OFF 0x00 |
| #define WL1273_PUPD_SET_ON 0x01 |
| #define WL1273_PUPD_SET_RETENTION 0x10 |
| |
| #define WL1273_FREQ(x) (x * 10000 / 625) |
| #define WL1273_INV_FREQ(x) (x * 625 / 10000) |
| |
| /* |
| * static int radio_nr - The number of the radio device |
| * |
| * The default is 0. |
| */ |
| static int radio_nr; |
| module_param(radio_nr, int, 0); |
| MODULE_PARM_DESC(radio_nr, "The number of the radio device. Default = 0"); |
| |
| struct wl1273_device { |
| char *bus_type; |
| |
| u8 forbidden; |
| unsigned int preemphasis; |
| unsigned int spacing; |
| unsigned int tx_power; |
| unsigned int rx_frequency; |
| unsigned int tx_frequency; |
| unsigned int rangelow; |
| unsigned int rangehigh; |
| unsigned int band; |
| bool stereo; |
| |
| /* RDS */ |
| unsigned int rds_on; |
| |
| wait_queue_head_t read_queue; |
| struct mutex lock; /* for serializing fm radio operations */ |
| struct completion busy; |
| |
| unsigned char *buffer; |
| unsigned int buf_size; |
| unsigned int rd_index; |
| unsigned int wr_index; |
| |
| /* Selected interrupts */ |
| u16 irq_flags; |
| u16 irq_received; |
| |
| struct v4l2_ctrl_handler ctrl_handler; |
| struct v4l2_device v4l2dev; |
| struct video_device videodev; |
| struct device *dev; |
| struct wl1273_core *core; |
| struct file *owner; |
| char *write_buf; |
| unsigned int rds_users; |
| }; |
| |
| #define WL1273_IRQ_MASK (WL1273_FR_EVENT | \ |
| WL1273_POW_ENB_EVENT) |
| |
| /* |
| * static unsigned int rds_buf - the number of RDS buffer blocks used. |
| * |
| * The default number is 100. |
| */ |
| static unsigned int rds_buf = 100; |
| module_param(rds_buf, uint, 0); |
| MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100"); |
| |
| static int wl1273_fm_write_fw(struct wl1273_core *core, |
| __u8 *fw, int len) |
| { |
| struct i2c_client *client = core->client; |
| struct i2c_msg msg; |
| int i, r = 0; |
| |
| msg.addr = client->addr; |
| msg.flags = 0; |
| |
| for (i = 0; i <= len; i++) { |
| msg.len = fw[0]; |
| msg.buf = fw + 1; |
| |
| fw += msg.len + 1; |
| dev_dbg(&client->dev, "%s:len[%d]: %d\n", __func__, i, msg.len); |
| |
| r = i2c_transfer(client->adapter, &msg, 1); |
| if (r < 0 && i < len + 1) |
| break; |
| } |
| |
| dev_dbg(&client->dev, "%s: i: %d\n", __func__, i); |
| dev_dbg(&client->dev, "%s: len + 1: %d\n", __func__, len + 1); |
| |
| /* Last transfer always fails. */ |
| if (i == len || r == 1) |
| r = 0; |
| |
| return r; |
| } |
| |
| #define WL1273_FIFO_HAS_DATA(status) (1 << 5 & status) |
| #define WL1273_RDS_CORRECTABLE_ERROR (1 << 3) |
| #define WL1273_RDS_UNCORRECTABLE_ERROR (1 << 4) |
| |
| static int wl1273_fm_rds(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| struct i2c_client *client = core->client; |
| u16 val; |
| u8 b0 = WL1273_RDS_DATA_GET, status; |
| struct v4l2_rds_data rds = { 0, 0, 0 }; |
| struct i2c_msg msg[] = { |
| { |
| .addr = client->addr, |
| .flags = 0, |
| .buf = &b0, |
| .len = 1, |
| }, |
| { |
| .addr = client->addr, |
| .flags = I2C_M_RD, |
| .buf = (u8 *) &rds, |
| .len = sizeof(rds), |
| } |
| }; |
| int r; |
| |
| if (core->mode != WL1273_MODE_RX) |
| return 0; |
| |
| r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
| if (r) |
| return r; |
| |
| if ((val & 0x01) == 0) { |
| /* RDS decoder not synchronized */ |
| return -EAGAIN; |
| } |
| |
| /* copy all four RDS blocks to internal buffer */ |
| do { |
| r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); |
| if (r != ARRAY_SIZE(msg)) { |
| dev_err(radio->dev, WL1273_FM_DRIVER_NAME |
| ": %s: read_rds error r == %i)\n", |
| __func__, r); |
| } |
| |
| status = rds.block; |
| |
| if (!WL1273_FIFO_HAS_DATA(status)) |
| break; |
| |
| /* copy bits 0-2 (the block ID) to bits 3-5 */ |
| rds.block = V4L2_RDS_BLOCK_MSK & status; |
| rds.block |= rds.block << 3; |
| |
| /* copy the error bits to standard positions */ |
| if (WL1273_RDS_UNCORRECTABLE_ERROR & status) { |
| rds.block |= V4L2_RDS_BLOCK_ERROR; |
| rds.block &= ~V4L2_RDS_BLOCK_CORRECTED; |
| } else if (WL1273_RDS_CORRECTABLE_ERROR & status) { |
| rds.block &= ~V4L2_RDS_BLOCK_ERROR; |
| rds.block |= V4L2_RDS_BLOCK_CORRECTED; |
| } |
| |
| /* copy RDS block to internal buffer */ |
| memcpy(&radio->buffer[radio->wr_index], &rds, RDS_BLOCK_SIZE); |
| radio->wr_index += 3; |
| |
| /* wrap write pointer */ |
| if (radio->wr_index >= radio->buf_size) |
| radio->wr_index = 0; |
| |
| /* check for overflow & start over */ |
| if (radio->wr_index == radio->rd_index) { |
| dev_dbg(radio->dev, "RDS OVERFLOW"); |
| |
| radio->rd_index = 0; |
| radio->wr_index = 0; |
| break; |
| } |
| } while (WL1273_FIFO_HAS_DATA(status)); |
| |
| /* wake up read queue */ |
| if (radio->wr_index != radio->rd_index) |
| wake_up_interruptible(&radio->read_queue); |
| |
| return 0; |
| } |
| |
| static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) |
| { |
| struct wl1273_device *radio = dev_id; |
| struct wl1273_core *core = radio->core; |
| u16 flags; |
| int r; |
| |
| r = core->read(core, WL1273_FLAG_GET, &flags); |
| if (r) |
| goto out; |
| |
| if (flags & WL1273_BL_EVENT) { |
| radio->irq_received = flags; |
| dev_dbg(radio->dev, "IRQ: BL\n"); |
| } |
| |
| if (flags & WL1273_RDS_EVENT) { |
| msleep(200); |
| |
| wl1273_fm_rds(radio); |
| } |
| |
| if (flags & WL1273_BBLK_EVENT) |
| dev_dbg(radio->dev, "IRQ: BBLK\n"); |
| |
| if (flags & WL1273_LSYNC_EVENT) |
| dev_dbg(radio->dev, "IRQ: LSYNC\n"); |
| |
| if (flags & WL1273_LEV_EVENT) { |
| u16 level; |
| |
| r = core->read(core, WL1273_RSSI_LVL_GET, &level); |
| if (r) |
| goto out; |
| |
| if (level > 14) |
| dev_dbg(radio->dev, "IRQ: LEV: 0x%x04\n", level); |
| } |
| |
| if (flags & WL1273_IFFR_EVENT) |
| dev_dbg(radio->dev, "IRQ: IFFR\n"); |
| |
| if (flags & WL1273_PI_EVENT) |
| dev_dbg(radio->dev, "IRQ: PI\n"); |
| |
| if (flags & WL1273_PD_EVENT) |
| dev_dbg(radio->dev, "IRQ: PD\n"); |
| |
| if (flags & WL1273_STIC_EVENT) |
| dev_dbg(radio->dev, "IRQ: STIC\n"); |
| |
| if (flags & WL1273_MAL_EVENT) |
| dev_dbg(radio->dev, "IRQ: MAL\n"); |
| |
| if (flags & WL1273_POW_ENB_EVENT) { |
| complete(&radio->busy); |
| dev_dbg(radio->dev, "NOT BUSY\n"); |
| dev_dbg(radio->dev, "IRQ: POW_ENB\n"); |
| } |
| |
| if (flags & WL1273_SCAN_OVER_EVENT) |
| dev_dbg(radio->dev, "IRQ: SCAN_OVER\n"); |
| |
| if (flags & WL1273_ERROR_EVENT) |
| dev_dbg(radio->dev, "IRQ: ERROR\n"); |
| |
| if (flags & WL1273_FR_EVENT) { |
| u16 freq; |
| |
| dev_dbg(radio->dev, "IRQ: FR:\n"); |
| |
| if (core->mode == WL1273_MODE_RX) { |
| r = core->write(core, WL1273_TUNER_MODE_SET, |
| TUNER_MODE_STOP_SEARCH); |
| if (r) { |
| dev_err(radio->dev, |
| "%s: TUNER_MODE_SET fails: %d\n", |
| __func__, r); |
| goto out; |
| } |
| |
| r = core->read(core, WL1273_FREQ_SET, &freq); |
| if (r) |
| goto out; |
| |
| if (radio->band == WL1273_BAND_JAPAN) |
| radio->rx_frequency = WL1273_BAND_JAPAN_LOW + |
| freq * 50; |
| else |
| radio->rx_frequency = WL1273_BAND_OTHER_LOW + |
| freq * 50; |
| /* |
| * The driver works better with this msleep, |
| * the documentation doesn't mention it. |
| */ |
| usleep_range(10000, 15000); |
| |
| dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency); |
| |
| } else { |
| r = core->read(core, WL1273_CHANL_SET, &freq); |
| if (r) |
| goto out; |
| |
| dev_dbg(radio->dev, "%dkHz\n", freq); |
| } |
| dev_dbg(radio->dev, "%s: NOT BUSY\n", __func__); |
| } |
| |
| out: |
| core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
| complete(&radio->busy); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq) |
| { |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| unsigned long t; |
| |
| if (freq < WL1273_BAND_TX_LOW) { |
| dev_err(radio->dev, |
| "Frequency out of range: %d < %d\n", freq, |
| WL1273_BAND_TX_LOW); |
| return -ERANGE; |
| } |
| |
| if (freq > WL1273_BAND_TX_HIGH) { |
| dev_err(radio->dev, |
| "Frequency out of range: %d > %d\n", freq, |
| WL1273_BAND_TX_HIGH); |
| return -ERANGE; |
| } |
| |
| /* |
| * The driver works better with this sleep, |
| * the documentation doesn't mention it. |
| */ |
| usleep_range(5000, 10000); |
| |
| dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq); |
| |
| /* Set the current tx channel */ |
| r = core->write(core, WL1273_CHANL_SET, freq / 10); |
| if (r) |
| return r; |
| |
| reinit_completion(&radio->busy); |
| |
| /* wait for the FR IRQ */ |
| t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
| if (!t) |
| return -ETIMEDOUT; |
| |
| dev_dbg(radio->dev, "WL1273_CHANL_SET: %lu\n", t); |
| |
| /* Enable the output power */ |
| r = core->write(core, WL1273_POWER_ENB_SET, 1); |
| if (r) |
| return r; |
| |
| reinit_completion(&radio->busy); |
| |
| /* wait for the POWER_ENB IRQ */ |
| t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
| if (!t) |
| return -ETIMEDOUT; |
| |
| radio->tx_frequency = freq; |
| dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %lu\n", t); |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq) |
| { |
| struct wl1273_core *core = radio->core; |
| int r, f; |
| unsigned long t; |
| |
| if (freq < radio->rangelow) { |
| dev_err(radio->dev, |
| "Frequency out of range: %d < %d\n", freq, |
| radio->rangelow); |
| r = -ERANGE; |
| goto err; |
| } |
| |
| if (freq > radio->rangehigh) { |
| dev_err(radio->dev, |
| "Frequency out of range: %d > %d\n", freq, |
| radio->rangehigh); |
| r = -ERANGE; |
| goto err; |
| } |
| |
| dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq); |
| |
| core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
| |
| if (radio->band == WL1273_BAND_JAPAN) |
| f = (freq - WL1273_BAND_JAPAN_LOW) / 50; |
| else |
| f = (freq - WL1273_BAND_OTHER_LOW) / 50; |
| |
| r = core->write(core, WL1273_FREQ_SET, f); |
| if (r) { |
| dev_err(radio->dev, "FREQ_SET fails\n"); |
| goto err; |
| } |
| |
| r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET); |
| if (r) { |
| dev_err(radio->dev, "TUNER_MODE_SET fails\n"); |
| goto err; |
| } |
| |
| reinit_completion(&radio->busy); |
| |
| t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000)); |
| if (!t) { |
| dev_err(radio->dev, "%s: TIMEOUT\n", __func__); |
| return -ETIMEDOUT; |
| } |
| |
| radio->rd_index = 0; |
| radio->wr_index = 0; |
| radio->rx_frequency = freq; |
| return 0; |
| err: |
| return r; |
| } |
| |
| static int wl1273_fm_get_freq(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| unsigned int freq; |
| u16 f; |
| int r; |
| |
| if (core->mode == WL1273_MODE_RX) { |
| r = core->read(core, WL1273_FREQ_SET, &f); |
| if (r) |
| return r; |
| |
| dev_dbg(radio->dev, "Freq get: 0x%04x\n", f); |
| if (radio->band == WL1273_BAND_JAPAN) |
| freq = WL1273_BAND_JAPAN_LOW + 50 * f; |
| else |
| freq = WL1273_BAND_OTHER_LOW + 50 * f; |
| } else { |
| r = core->read(core, WL1273_CHANL_SET, &f); |
| if (r) |
| return r; |
| |
| freq = f * 10; |
| } |
| |
| return freq; |
| } |
| |
| /** |
| * wl1273_fm_upload_firmware_patch() - Upload the firmware. |
| * @radio: A pointer to the device struct. |
| * |
| * The firmware file consists of arrays of bytes where the first byte |
| * gives the array length. The first byte in the file gives the |
| * number of these arrays. |
| */ |
| static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| unsigned int packet_num; |
| const struct firmware *fw_p; |
| const char *fw_name = "radio-wl1273-fw.bin"; |
| struct device *dev = radio->dev; |
| __u8 *ptr; |
| int r; |
| |
| dev_dbg(dev, "%s:\n", __func__); |
| |
| /* |
| * Uploading the firmware patch is not always necessary, |
| * so we only print an info message. |
| */ |
| if (request_firmware(&fw_p, fw_name, dev)) { |
| dev_info(dev, "%s - %s not found\n", __func__, fw_name); |
| |
| return 0; |
| } |
| |
| ptr = (__u8 *) fw_p->data; |
| packet_num = ptr[0]; |
| dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num); |
| |
| r = wl1273_fm_write_fw(core, ptr + 1, packet_num); |
| if (r) { |
| dev_err(dev, "FW upload error: %d\n", r); |
| goto out; |
| } |
| |
| /* ignore possible error here */ |
| core->write(core, WL1273_RESET, 0); |
| |
| dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r); |
| out: |
| release_firmware(fw_p); |
| return r; |
| } |
| |
| static int wl1273_fm_stop(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| |
| if (core->mode == WL1273_MODE_RX) { |
| int r = core->write(core, WL1273_POWER_SET, |
| WL1273_POWER_SET_OFF); |
| if (r) |
| dev_err(radio->dev, "%s: POWER_SET fails: %d\n", |
| __func__, r); |
| } else if (core->mode == WL1273_MODE_TX) { |
| int r = core->write(core, WL1273_PUPD_SET, |
| WL1273_PUPD_SET_OFF); |
| if (r) |
| dev_err(radio->dev, |
| "%s: PUPD_SET fails: %d\n", __func__, r); |
| } |
| |
| if (core->pdata->disable) { |
| core->pdata->disable(); |
| dev_dbg(radio->dev, "Back to reset\n"); |
| } |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_start(struct wl1273_device *radio, int new_mode) |
| { |
| struct wl1273_core *core = radio->core; |
| struct wl1273_fm_platform_data *pdata = core->pdata; |
| struct device *dev = radio->dev; |
| int r = -EINVAL; |
| |
| if (pdata->enable && core->mode == WL1273_MODE_OFF) { |
| dev_dbg(radio->dev, "Out of reset\n"); |
| |
| pdata->enable(); |
| msleep(250); |
| } |
| |
| if (new_mode == WL1273_MODE_RX) { |
| u16 val = WL1273_POWER_SET_FM; |
| |
| if (radio->rds_on) |
| val |= WL1273_POWER_SET_RDS; |
| |
| /* If this fails try again */ |
| r = core->write(core, WL1273_POWER_SET, val); |
| if (r) { |
| msleep(100); |
| |
| r = core->write(core, WL1273_POWER_SET, val); |
| if (r) { |
| dev_err(dev, "%s: POWER_SET fails\n", __func__); |
| goto fail; |
| } |
| } |
| |
| /* rds buffer configuration */ |
| radio->wr_index = 0; |
| radio->rd_index = 0; |
| |
| } else if (new_mode == WL1273_MODE_TX) { |
| /* If this fails try again once */ |
| r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON); |
| if (r) { |
| msleep(100); |
| r = core->write(core, WL1273_PUPD_SET, |
| WL1273_PUPD_SET_ON); |
| if (r) { |
| dev_err(dev, "%s: PUPD_SET fails\n", __func__); |
| goto fail; |
| } |
| } |
| |
| if (radio->rds_on) { |
| r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
| if (r) { |
| dev_err(dev, "%s: RDS_DATA_ENB ON fails\n", |
| __func__); |
| goto fail; |
| } |
| } else { |
| r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
| if (r) { |
| dev_err(dev, "%s: RDS_DATA_ENB OFF fails\n", |
| __func__); |
| goto fail; |
| } |
| } |
| } else { |
| dev_warn(dev, "%s: Illegal mode.\n", __func__); |
| } |
| |
| if (core->mode == WL1273_MODE_OFF) { |
| r = wl1273_fm_upload_firmware_patch(radio); |
| if (r) |
| dev_warn(dev, "Firmware upload failed.\n"); |
| |
| /* |
| * Sometimes the chip is in a wrong power state at this point. |
| * So we set the power once again. |
| */ |
| if (new_mode == WL1273_MODE_RX) { |
| u16 val = WL1273_POWER_SET_FM; |
| |
| if (radio->rds_on) |
| val |= WL1273_POWER_SET_RDS; |
| |
| r = core->write(core, WL1273_POWER_SET, val); |
| if (r) { |
| dev_err(dev, "%s: POWER_SET fails\n", __func__); |
| goto fail; |
| } |
| } else if (new_mode == WL1273_MODE_TX) { |
| r = core->write(core, WL1273_PUPD_SET, |
| WL1273_PUPD_SET_ON); |
| if (r) { |
| dev_err(dev, "%s: PUPD_SET fails\n", __func__); |
| goto fail; |
| } |
| } |
| } |
| |
| return 0; |
| fail: |
| if (pdata->disable) |
| pdata->disable(); |
| |
| dev_dbg(dev, "%s: return: %d\n", __func__, r); |
| return r; |
| } |
| |
| static int wl1273_fm_suspend(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| /* Cannot go from OFF to SUSPENDED */ |
| if (core->mode == WL1273_MODE_RX) |
| r = core->write(core, WL1273_POWER_SET, |
| WL1273_POWER_SET_RETENTION); |
| else if (core->mode == WL1273_MODE_TX) |
| r = core->write(core, WL1273_PUPD_SET, |
| WL1273_PUPD_SET_RETENTION); |
| else |
| r = -EINVAL; |
| |
| if (r) { |
| dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r); |
| goto out; |
| } |
| |
| out: |
| return r; |
| } |
| |
| static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode) |
| { |
| struct wl1273_core *core = radio->core; |
| struct device *dev = radio->dev; |
| int old_mode; |
| int r; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden); |
| |
| old_mode = core->mode; |
| if (mode & radio->forbidden) { |
| r = -EPERM; |
| goto out; |
| } |
| |
| switch (mode) { |
| case WL1273_MODE_RX: |
| case WL1273_MODE_TX: |
| r = wl1273_fm_start(radio, mode); |
| if (r) { |
| dev_err(dev, "%s: Cannot start.\n", __func__); |
| wl1273_fm_stop(radio); |
| goto out; |
| } |
| |
| core->mode = mode; |
| r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
| if (r) { |
| dev_err(dev, "INT_MASK_SET fails.\n"); |
| goto out; |
| } |
| |
| /* remember previous settings */ |
| if (mode == WL1273_MODE_RX) { |
| r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); |
| if (r) { |
| dev_err(dev, "set freq fails: %d.\n", r); |
| goto out; |
| } |
| |
| r = core->set_volume(core, core->volume); |
| if (r) { |
| dev_err(dev, "set volume fails: %d.\n", r); |
| goto out; |
| } |
| |
| dev_dbg(dev, "%s: Set vol: %d.\n", __func__, |
| core->volume); |
| } else { |
| r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency); |
| if (r) { |
| dev_err(dev, "set freq fails: %d.\n", r); |
| goto out; |
| } |
| } |
| |
| dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__); |
| |
| r = core->set_audio(core, core->audio_mode); |
| if (r) |
| dev_err(dev, "Cannot set audio mode.\n"); |
| break; |
| |
| case WL1273_MODE_OFF: |
| r = wl1273_fm_stop(radio); |
| if (r) |
| dev_err(dev, "%s: Off fails: %d\n", __func__, r); |
| else |
| core->mode = WL1273_MODE_OFF; |
| |
| break; |
| |
| case WL1273_MODE_SUSPENDED: |
| r = wl1273_fm_suspend(radio); |
| if (r) |
| dev_err(dev, "%s: Suspend fails: %d\n", __func__, r); |
| else |
| core->mode = WL1273_MODE_SUSPENDED; |
| |
| break; |
| |
| default: |
| dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode); |
| r = -EINVAL; |
| break; |
| } |
| out: |
| if (r) |
| core->mode = old_mode; |
| |
| return r; |
| } |
| |
| static int wl1273_fm_set_seek(struct wl1273_device *radio, |
| unsigned int wrap_around, |
| unsigned int seek_upward, |
| int level) |
| { |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| unsigned int dir = (seek_upward == 0) ? 0 : 1; |
| unsigned int f; |
| |
| f = radio->rx_frequency; |
| dev_dbg(radio->dev, "rx_frequency: %d\n", f); |
| |
| if (dir && f + radio->spacing <= radio->rangehigh) |
| r = wl1273_fm_set_rx_freq(radio, f + radio->spacing); |
| else if (dir && wrap_around) |
| r = wl1273_fm_set_rx_freq(radio, radio->rangelow); |
| else if (f - radio->spacing >= radio->rangelow) |
| r = wl1273_fm_set_rx_freq(radio, f - radio->spacing); |
| else if (wrap_around) |
| r = wl1273_fm_set_rx_freq(radio, radio->rangehigh); |
| |
| if (r) |
| goto out; |
| |
| if (level < SCHAR_MIN || level > SCHAR_MAX) |
| return -EINVAL; |
| |
| reinit_completion(&radio->busy); |
| dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
| |
| r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
| if (r) |
| goto out; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| r = core->write(core, WL1273_SEARCH_LVL_SET, level); |
| if (r) |
| goto out; |
| |
| r = core->write(core, WL1273_SEARCH_DIR_SET, dir); |
| if (r) |
| goto out; |
| |
| r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
| if (r) |
| goto out; |
| |
| /* wait for the FR IRQ */ |
| wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)); |
| if (!(radio->irq_received & WL1273_BL_EVENT)) { |
| r = -ETIMEDOUT; |
| goto out; |
| } |
| |
| radio->irq_received &= ~WL1273_BL_EVENT; |
| |
| if (!wrap_around) |
| goto out; |
| |
| /* Wrap around */ |
| dev_dbg(radio->dev, "Wrap around in HW seek.\n"); |
| |
| if (seek_upward) |
| f = radio->rangelow; |
| else |
| f = radio->rangehigh; |
| |
| r = wl1273_fm_set_rx_freq(radio, f); |
| if (r) |
| goto out; |
| |
| reinit_completion(&radio->busy); |
| dev_dbg(radio->dev, "%s: BUSY\n", __func__); |
| |
| r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK); |
| if (r) |
| goto out; |
| |
| /* wait for the FR IRQ */ |
| if (!wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000))) |
| r = -ETIMEDOUT; |
| out: |
| dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r); |
| return r; |
| } |
| |
| /** |
| * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value. |
| * @radio: A pointer to the device struct. |
| */ |
| static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| struct device *dev = radio->dev; |
| u16 val; |
| int r; |
| |
| if (core->mode == WL1273_MODE_OFF || |
| core->mode == WL1273_MODE_SUSPENDED) |
| return -EPERM; |
| |
| r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val); |
| if (r) { |
| dev_err(dev, "%s: read error: %d\n", __func__, r); |
| goto out; |
| } |
| |
| out: |
| return val; |
| } |
| |
| /** |
| * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value. |
| * @radio: A pointer to the device struct. |
| * @preemphasis: The new pre-amphasis value. |
| * |
| * Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED, |
| * V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS. |
| */ |
| static int wl1273_fm_set_preemphasis(struct wl1273_device *radio, |
| unsigned int preemphasis) |
| { |
| struct wl1273_core *core = radio->core; |
| int r; |
| u16 em; |
| |
| if (core->mode == WL1273_MODE_OFF || |
| core->mode == WL1273_MODE_SUSPENDED) |
| return -EPERM; |
| |
| mutex_lock(&core->lock); |
| |
| switch (preemphasis) { |
| case V4L2_PREEMPHASIS_DISABLED: |
| em = 1; |
| break; |
| case V4L2_PREEMPHASIS_50_uS: |
| em = 0; |
| break; |
| case V4L2_PREEMPHASIS_75_uS: |
| em = 2; |
| break; |
| default: |
| r = -EINVAL; |
| goto out; |
| } |
| |
| r = core->write(core, WL1273_PREMPH_SET, em); |
| if (r) |
| goto out; |
| |
| radio->preemphasis = preemphasis; |
| |
| out: |
| mutex_unlock(&core->lock); |
| return r; |
| } |
| |
| static int wl1273_fm_rds_on(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| if (radio->rds_on) |
| return 0; |
| |
| r = core->write(core, WL1273_POWER_SET, |
| WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS); |
| if (r) |
| goto out; |
| |
| r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); |
| if (r) |
| dev_err(radio->dev, "set freq fails: %d.\n", r); |
| out: |
| return r; |
| } |
| |
| static int wl1273_fm_rds_off(struct wl1273_device *radio) |
| { |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| if (!radio->rds_on) |
| return 0; |
| |
| radio->irq_flags &= ~WL1273_RDS_EVENT; |
| |
| r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags); |
| if (r) |
| goto out; |
| |
| /* Service pending read */ |
| wake_up_interruptible(&radio->read_queue); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM); |
| if (r) |
| goto out; |
| |
| r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency); |
| if (r) |
| dev_err(radio->dev, "set freq fails: %d.\n", r); |
| out: |
| dev_dbg(radio->dev, "%s: exiting...\n", __func__); |
| |
| return r; |
| } |
| |
| static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode) |
| { |
| int r = 0; |
| struct wl1273_core *core = radio->core; |
| |
| if (core->mode == WL1273_MODE_OFF || |
| core->mode == WL1273_MODE_SUSPENDED) |
| return -EPERM; |
| |
| if (new_mode == WL1273_RDS_RESET) { |
| r = core->write(core, WL1273_RDS_CNTRL_SET, 1); |
| return r; |
| } |
| |
| if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) { |
| r = core->write(core, WL1273_RDS_DATA_ENB, 0); |
| } else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) { |
| r = core->write(core, WL1273_RDS_DATA_ENB, 1); |
| } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) { |
| r = wl1273_fm_rds_off(radio); |
| } else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) { |
| r = wl1273_fm_rds_on(radio); |
| } else { |
| dev_err(radio->dev, "%s: Unknown mode: %d\n", |
| __func__, new_mode); |
| r = -EINVAL; |
| } |
| |
| if (!r) |
| radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false; |
| |
| return r; |
| } |
| |
| static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| u16 val; |
| int r; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (core->mode != WL1273_MODE_TX) |
| return count; |
| |
| if (radio->rds_users == 0) { |
| dev_warn(radio->dev, "%s: RDS not on.\n", __func__); |
| return 0; |
| } |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| /* |
| * Multiple processes can open the device, but only |
| * one gets to write to it. |
| */ |
| if (radio->owner && radio->owner != file) { |
| r = -EBUSY; |
| goto out; |
| } |
| radio->owner = file; |
| |
| /* Manual Mode */ |
| if (count > 255) |
| val = 255; |
| else |
| val = count; |
| |
| core->write(core, WL1273_RDS_CONFIG_DATA_SET, val); |
| |
| if (copy_from_user(radio->write_buf + 1, buf, val)) { |
| r = -EFAULT; |
| goto out; |
| } |
| |
| dev_dbg(radio->dev, "Count: %d\n", val); |
| dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf); |
| |
| radio->write_buf[0] = WL1273_RDS_DATA_SET; |
| core->write_data(core, radio->write_buf, val + 1); |
| |
| r = val; |
| out: |
| mutex_unlock(&core->lock); |
| |
| return r; |
| } |
| |
| static __poll_t wl1273_fm_fops_poll(struct file *file, |
| struct poll_table_struct *pts) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| |
| if (radio->owner && radio->owner != file) |
| return -EBUSY; |
| |
| radio->owner = file; |
| |
| if (core->mode == WL1273_MODE_RX) { |
| poll_wait(file, &radio->read_queue, pts); |
| |
| if (radio->rd_index != radio->wr_index) |
| return EPOLLIN | EPOLLRDNORM; |
| |
| } else if (core->mode == WL1273_MODE_TX) { |
| return EPOLLOUT | EPOLLWRNORM; |
| } |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_fops_open(struct file *file) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (core->mode == WL1273_MODE_RX && radio->rds_on && |
| !radio->rds_users) { |
| dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode); |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| radio->irq_flags |= WL1273_RDS_EVENT; |
| |
| r = core->write(core, WL1273_INT_MASK_SET, |
| radio->irq_flags); |
| if (r) { |
| mutex_unlock(&core->lock); |
| goto out; |
| } |
| |
| radio->rds_users++; |
| |
| mutex_unlock(&core->lock); |
| } |
| out: |
| return r; |
| } |
| |
| static int wl1273_fm_fops_release(struct file *file) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (radio->rds_users > 0) { |
| radio->rds_users--; |
| if (radio->rds_users == 0) { |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| radio->irq_flags &= ~WL1273_RDS_EVENT; |
| |
| if (core->mode == WL1273_MODE_RX) { |
| r = core->write(core, |
| WL1273_INT_MASK_SET, |
| radio->irq_flags); |
| if (r) { |
| mutex_unlock(&core->lock); |
| goto out; |
| } |
| } |
| mutex_unlock(&core->lock); |
| } |
| } |
| |
| if (file == radio->owner) |
| radio->owner = NULL; |
| out: |
| return r; |
| } |
| |
| static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| int r = 0; |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| unsigned int block_count = 0; |
| u16 val; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (core->mode != WL1273_MODE_RX) |
| return 0; |
| |
| if (radio->rds_users == 0) { |
| dev_warn(radio->dev, "%s: RDS not on.\n", __func__); |
| return 0; |
| } |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| /* |
| * Multiple processes can open the device, but only |
| * one at a time gets read access. |
| */ |
| if (radio->owner && radio->owner != file) { |
| r = -EBUSY; |
| goto out; |
| } |
| radio->owner = file; |
| |
| r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
| if (r) { |
| dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__); |
| goto out; |
| } else if (val == 0) { |
| dev_info(radio->dev, "RDS_SYNC: Not synchronized\n"); |
| r = -ENODATA; |
| goto out; |
| } |
| |
| /* block if no new data available */ |
| while (radio->wr_index == radio->rd_index) { |
| if (file->f_flags & O_NONBLOCK) { |
| r = -EWOULDBLOCK; |
| goto out; |
| } |
| |
| dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__); |
| if (wait_event_interruptible(radio->read_queue, |
| radio->wr_index != |
| radio->rd_index) < 0) { |
| r = -EINTR; |
| goto out; |
| } |
| } |
| |
| /* calculate block count from byte count */ |
| count /= RDS_BLOCK_SIZE; |
| |
| /* copy RDS blocks from the internal buffer and to user buffer */ |
| while (block_count < count) { |
| if (radio->rd_index == radio->wr_index) |
| break; |
| |
| /* always transfer complete RDS blocks */ |
| if (copy_to_user(buf, &radio->buffer[radio->rd_index], |
| RDS_BLOCK_SIZE)) |
| break; |
| |
| /* increment and wrap the read pointer */ |
| radio->rd_index += RDS_BLOCK_SIZE; |
| if (radio->rd_index >= radio->buf_size) |
| radio->rd_index = 0; |
| |
| /* increment counters */ |
| block_count++; |
| buf += RDS_BLOCK_SIZE; |
| r += RDS_BLOCK_SIZE; |
| } |
| |
| out: |
| dev_dbg(radio->dev, "%s: exit\n", __func__); |
| mutex_unlock(&core->lock); |
| |
| return r; |
| } |
| |
| static const struct v4l2_file_operations wl1273_fops = { |
| .owner = THIS_MODULE, |
| .read = wl1273_fm_fops_read, |
| .write = wl1273_fm_fops_write, |
| .poll = wl1273_fm_fops_poll, |
| .unlocked_ioctl = video_ioctl2, |
| .open = wl1273_fm_fops_open, |
| .release = wl1273_fm_fops_release, |
| }; |
| |
| static int wl1273_fm_vidioc_querycap(struct file *file, void *priv, |
| struct v4l2_capability *capability) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| strlcpy(capability->driver, WL1273_FM_DRIVER_NAME, |
| sizeof(capability->driver)); |
| strlcpy(capability->card, "Texas Instruments Wl1273 FM Radio", |
| sizeof(capability->card)); |
| strlcpy(capability->bus_info, radio->bus_type, |
| sizeof(capability->bus_info)); |
| |
| capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | |
| V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_AUDIO | |
| V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR | |
| V4L2_CAP_RDS_OUTPUT; |
| capability->capabilities = capability->device_caps | |
| V4L2_CAP_DEVICE_CAPS; |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_vidioc_g_input(struct file *file, void *priv, |
| unsigned int *i) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| *i = 0; |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_vidioc_s_input(struct file *file, void *priv, |
| unsigned int i) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (i != 0) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /** |
| * wl1273_fm_set_tx_power() - Set the transmission power value. |
| * @radio: A pointer to the device struct. |
| * @power: The new power value. |
| */ |
| static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power) |
| { |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| if (core->mode == WL1273_MODE_OFF || |
| core->mode == WL1273_MODE_SUSPENDED) |
| return -EPERM; |
| |
| mutex_lock(&core->lock); |
| |
| /* Convert the dBuV value to chip presentation */ |
| r = core->write(core, WL1273_POWER_LEV_SET, 122 - power); |
| if (r) |
| goto out; |
| |
| radio->tx_power = power; |
| |
| out: |
| mutex_unlock(&core->lock); |
| return r; |
| } |
| |
| #define WL1273_SPACING_50kHz 1 |
| #define WL1273_SPACING_100kHz 2 |
| #define WL1273_SPACING_200kHz 4 |
| |
| static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio, |
| unsigned int spacing) |
| { |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| if (spacing == 0) { |
| r = core->write(core, WL1273_SCAN_SPACING_SET, |
| WL1273_SPACING_100kHz); |
| radio->spacing = 100; |
| } else if (spacing - 50000 < 25000) { |
| r = core->write(core, WL1273_SCAN_SPACING_SET, |
| WL1273_SPACING_50kHz); |
| radio->spacing = 50; |
| } else if (spacing - 100000 < 50000) { |
| r = core->write(core, WL1273_SCAN_SPACING_SET, |
| WL1273_SPACING_100kHz); |
| radio->spacing = 100; |
| } else { |
| r = core->write(core, WL1273_SCAN_SPACING_SET, |
| WL1273_SPACING_200kHz); |
| radio->spacing = 200; |
| } |
| |
| return r; |
| } |
| |
| static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct wl1273_device *radio = ctrl->priv; |
| struct wl1273_core *core = radio->core; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| switch (ctrl->id) { |
| case V4L2_CID_TUNE_ANTENNA_CAPACITOR: |
| ctrl->val = wl1273_fm_get_tx_ctune(radio); |
| break; |
| |
| default: |
| dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", |
| __func__, ctrl->id); |
| break; |
| } |
| |
| mutex_unlock(&core->lock); |
| |
| return 0; |
| } |
| |
| #define WL1273_MUTE_SOFT_ENABLE (1 << 0) |
| #define WL1273_MUTE_AC (1 << 1) |
| #define WL1273_MUTE_HARD_LEFT (1 << 2) |
| #define WL1273_MUTE_HARD_RIGHT (1 << 3) |
| #define WL1273_MUTE_SOFT_FORCE (1 << 4) |
| |
| static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl) |
| { |
| return container_of(ctrl->handler, struct wl1273_device, ctrl_handler); |
| } |
| |
| static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct wl1273_device *radio = to_radio(ctrl); |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| switch (ctrl->id) { |
| case V4L2_CID_AUDIO_MUTE: |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| if (core->mode == WL1273_MODE_RX && ctrl->val) |
| r = core->write(core, |
| WL1273_MUTE_STATUS_SET, |
| WL1273_MUTE_HARD_LEFT | |
| WL1273_MUTE_HARD_RIGHT); |
| else if (core->mode == WL1273_MODE_RX) |
| r = core->write(core, |
| WL1273_MUTE_STATUS_SET, 0x0); |
| else if (core->mode == WL1273_MODE_TX && ctrl->val) |
| r = core->write(core, WL1273_MUTE, 1); |
| else if (core->mode == WL1273_MODE_TX) |
| r = core->write(core, WL1273_MUTE, 0); |
| |
| mutex_unlock(&core->lock); |
| break; |
| |
| case V4L2_CID_AUDIO_VOLUME: |
| if (ctrl->val == 0) |
| r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF); |
| else |
| r = core->set_volume(core, core->volume); |
| break; |
| |
| case V4L2_CID_TUNE_PREEMPHASIS: |
| r = wl1273_fm_set_preemphasis(radio, ctrl->val); |
| break; |
| |
| case V4L2_CID_TUNE_POWER_LEVEL: |
| r = wl1273_fm_set_tx_power(radio, ctrl->val); |
| break; |
| |
| default: |
| dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n", |
| __func__, ctrl->id); |
| break; |
| } |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| return r; |
| } |
| |
| static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv, |
| struct v4l2_audio *audio) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (audio->index > 1) |
| return -EINVAL; |
| |
| strlcpy(audio->name, "Radio", sizeof(audio->name)); |
| audio->capability = V4L2_AUDCAP_STEREO; |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv, |
| const struct v4l2_audio *audio) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (audio->index != 0) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| #define WL1273_RDS_NOT_SYNCHRONIZED 0 |
| #define WL1273_RDS_SYNCHRONIZED 1 |
| |
| static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, |
| struct v4l2_tuner *tuner) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| u16 val; |
| int r; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (tuner->index > 0) |
| return -EINVAL; |
| |
| strlcpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name)); |
| tuner->type = V4L2_TUNER_RADIO; |
| |
| tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); |
| tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); |
| |
| tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | |
| V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO | |
| V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP; |
| |
| if (radio->stereo) |
| tuner->audmode = V4L2_TUNER_MODE_STEREO; |
| else |
| tuner->audmode = V4L2_TUNER_MODE_MONO; |
| |
| if (core->mode != WL1273_MODE_RX) |
| return 0; |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| r = core->read(core, WL1273_STEREO_GET, &val); |
| if (r) |
| goto out; |
| |
| if (val == 1) |
| tuner->rxsubchans = V4L2_TUNER_SUB_STEREO; |
| else |
| tuner->rxsubchans = V4L2_TUNER_SUB_MONO; |
| |
| r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
| if (r) |
| goto out; |
| |
| tuner->signal = (s16) val; |
| dev_dbg(radio->dev, "Signal: %d\n", tuner->signal); |
| |
| tuner->afc = 0; |
| |
| r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
| if (r) |
| goto out; |
| |
| if (val == WL1273_RDS_SYNCHRONIZED) |
| tuner->rxsubchans |= V4L2_TUNER_SUB_RDS; |
| out: |
| mutex_unlock(&core->lock); |
| |
| return r; |
| } |
| |
| static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv, |
| const struct v4l2_tuner *tuner) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index); |
| dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name); |
| dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability); |
| dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans); |
| dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow); |
| dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh); |
| |
| if (tuner->index > 0) |
| return -EINVAL; |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); |
| if (r) |
| goto out; |
| |
| if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS) |
| r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); |
| else |
| r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); |
| |
| if (r) |
| dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r); |
| |
| if (tuner->audmode == V4L2_TUNER_MODE_MONO) { |
| r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO); |
| if (r < 0) { |
| dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", |
| __func__, r); |
| goto out; |
| } |
| radio->stereo = false; |
| } else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) { |
| r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO); |
| if (r < 0) { |
| dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n", |
| __func__, r); |
| goto out; |
| } |
| radio->stereo = true; |
| } else { |
| dev_err(radio->dev, "%s: tuner->audmode: %d\n", |
| __func__, tuner->audmode); |
| r = -EINVAL; |
| goto out; |
| } |
| |
| out: |
| mutex_unlock(&core->lock); |
| |
| return r; |
| } |
| |
| static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv, |
| struct v4l2_frequency *freq) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| freq->type = V4L2_TUNER_RADIO; |
| freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio)); |
| |
| mutex_unlock(&core->lock); |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv, |
| const struct v4l2_frequency *freq) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency); |
| |
| if (freq->type != V4L2_TUNER_RADIO) { |
| dev_dbg(radio->dev, |
| "freq->type != V4L2_TUNER_RADIO: %d\n", freq->type); |
| return -EINVAL; |
| } |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| if (core->mode == WL1273_MODE_RX) { |
| dev_dbg(radio->dev, "freq: %d\n", freq->frequency); |
| |
| r = wl1273_fm_set_rx_freq(radio, |
| WL1273_INV_FREQ(freq->frequency)); |
| if (r) |
| dev_warn(radio->dev, WL1273_FM_DRIVER_NAME |
| ": set frequency failed with %d\n", r); |
| } else { |
| r = wl1273_fm_set_tx_freq(radio, |
| WL1273_INV_FREQ(freq->frequency)); |
| if (r) |
| dev_warn(radio->dev, WL1273_FM_DRIVER_NAME |
| ": set frequency failed with %d\n", r); |
| } |
| |
| mutex_unlock(&core->lock); |
| |
| dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n"); |
| return r; |
| } |
| |
| #define WL1273_DEFAULT_SEEK_LEVEL 7 |
| |
| static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv, |
| const struct v4l2_hw_freq_seek *seek) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO) |
| return -EINVAL; |
| |
| if (file->f_flags & O_NONBLOCK) |
| return -EWOULDBLOCK; |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| r = wl1273_fm_set_mode(radio, WL1273_MODE_RX); |
| if (r) |
| goto out; |
| |
| r = wl1273_fm_tx_set_spacing(radio, seek->spacing); |
| if (r) |
| dev_warn(radio->dev, "HW seek failed: %d\n", r); |
| |
| r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward, |
| WL1273_DEFAULT_SEEK_LEVEL); |
| if (r) |
| dev_warn(radio->dev, "HW seek failed: %d\n", r); |
| |
| out: |
| mutex_unlock(&core->lock); |
| return r; |
| } |
| |
| static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv, |
| const struct v4l2_modulator *modulator) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| int r = 0; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| if (modulator->index > 0) |
| return -EINVAL; |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| r = wl1273_fm_set_mode(radio, WL1273_MODE_TX); |
| if (r) |
| goto out; |
| |
| if (modulator->txsubchans & V4L2_TUNER_SUB_RDS) |
| r = wl1273_fm_set_rds(radio, WL1273_RDS_ON); |
| else |
| r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF); |
| |
| if (modulator->txsubchans & V4L2_TUNER_SUB_MONO) |
| r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO); |
| else |
| r = core->write(core, WL1273_MONO_SET, |
| WL1273_RX_STEREO); |
| if (r < 0) |
| dev_warn(radio->dev, WL1273_FM_DRIVER_NAME |
| "MONO_SET fails: %d\n", r); |
| out: |
| mutex_unlock(&core->lock); |
| |
| return r; |
| } |
| |
| static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv, |
| struct v4l2_modulator *modulator) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| u16 val; |
| int r; |
| |
| dev_dbg(radio->dev, "%s\n", __func__); |
| |
| strlcpy(modulator->name, WL1273_FM_DRIVER_NAME, |
| sizeof(modulator->name)); |
| |
| modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW); |
| modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); |
| |
| modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | |
| V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; |
| |
| if (core->mode != WL1273_MODE_TX) |
| return 0; |
| |
| if (mutex_lock_interruptible(&core->lock)) |
| return -EINTR; |
| |
| r = core->read(core, WL1273_MONO_SET, &val); |
| if (r) |
| goto out; |
| |
| if (val == WL1273_TX_STEREO) |
| modulator->txsubchans = V4L2_TUNER_SUB_STEREO; |
| else |
| modulator->txsubchans = V4L2_TUNER_SUB_MONO; |
| |
| if (radio->rds_on) |
| modulator->txsubchans |= V4L2_TUNER_SUB_RDS; |
| out: |
| mutex_unlock(&core->lock); |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_vidioc_log_status(struct file *file, void *priv) |
| { |
| struct wl1273_device *radio = video_get_drvdata(video_devdata(file)); |
| struct wl1273_core *core = radio->core; |
| struct device *dev = radio->dev; |
| u16 val; |
| int r; |
| |
| dev_info(dev, DRIVER_DESC); |
| |
| if (core->mode == WL1273_MODE_OFF) { |
| dev_info(dev, "Mode: Off\n"); |
| return 0; |
| } |
| |
| if (core->mode == WL1273_MODE_SUSPENDED) { |
| dev_info(dev, "Mode: Suspended\n"); |
| return 0; |
| } |
| |
| r = core->read(core, WL1273_ASIC_ID_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__); |
| else |
| dev_info(dev, "ASIC_ID: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_ASIC_VER_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__); |
| else |
| dev_info(dev, "ASIC Version: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_FIRM_VER_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__); |
| else |
| dev_info(dev, "FW version: %d(0x%04x)\n", val, val); |
| |
| r = core->read(core, WL1273_BAND_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get BAND fails.\n", __func__); |
| else |
| dev_info(dev, "BAND: %d\n", val); |
| |
| if (core->mode == WL1273_MODE_TX) { |
| r = core->read(core, WL1273_PUPD_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get PUPD fails.\n", __func__); |
| else |
| dev_info(dev, "PUPD: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_CHANL_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get CHANL fails.\n", __func__); |
| else |
| dev_info(dev, "Tx frequency: %dkHz\n", val*10); |
| } else if (core->mode == WL1273_MODE_RX) { |
| int bf = radio->rangelow; |
| |
| r = core->read(core, WL1273_FREQ_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get FREQ fails.\n", __func__); |
| else |
| dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50); |
| |
| r = core->read(core, WL1273_MOST_MODE_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get MOST_MODE fails.\n", |
| __func__); |
| else if (val == 0) |
| dev_info(dev, "MOST_MODE: Stereo according to blend\n"); |
| else if (val == 1) |
| dev_info(dev, "MOST_MODE: Force mono output\n"); |
| else |
| dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val); |
| |
| r = core->read(core, WL1273_MOST_BLEND_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__); |
| else if (val == 0) |
| dev_info(dev, |
| "MOST_BLEND: Switched blend & hysteresis.\n"); |
| else if (val == 1) |
| dev_info(dev, "MOST_BLEND: Soft blend.\n"); |
| else |
| dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val); |
| |
| r = core->read(core, WL1273_STEREO_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get STEREO fails.\n", __func__); |
| else if (val == 0) |
| dev_info(dev, "STEREO: Not detected\n"); |
| else if (val == 1) |
| dev_info(dev, "STEREO: Detected\n"); |
| else |
| dev_info(dev, "STEREO: Unexpected value: %d\n", val); |
| |
| r = core->read(core, WL1273_RSSI_LVL_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__); |
| else |
| dev_info(dev, "RX signal strength: %d\n", (s16) val); |
| |
| r = core->read(core, WL1273_POWER_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get POWER fails.\n", __func__); |
| else |
| dev_info(dev, "POWER: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_INT_MASK_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get INT_MASK fails.\n", __func__); |
| else |
| dev_info(dev, "INT_MASK: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_RDS_SYNC_GET, &val); |
| if (r) |
| dev_err(dev, "%s: Get RDS_SYNC fails.\n", |
| __func__); |
| else if (val == 0) |
| dev_info(dev, "RDS_SYNC: Not synchronized\n"); |
| |
| else if (val == 1) |
| dev_info(dev, "RDS_SYNC: Synchronized\n"); |
| else |
| dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val); |
| |
| r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n", |
| __func__); |
| else |
| dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val); |
| |
| r = core->read(core, WL1273_VOLUME_SET, &val); |
| if (r) |
| dev_err(dev, "%s: Get VOLUME fails.\n", __func__); |
| else |
| dev_info(dev, "VOLUME: 0x%04x\n", val); |
| } |
| |
| return 0; |
| } |
| |
| static void wl1273_vdev_release(struct video_device *dev) |
| { |
| } |
| |
| static const struct v4l2_ctrl_ops wl1273_ctrl_ops = { |
| .s_ctrl = wl1273_fm_vidioc_s_ctrl, |
| .g_volatile_ctrl = wl1273_fm_g_volatile_ctrl, |
| }; |
| |
| static const struct v4l2_ioctl_ops wl1273_ioctl_ops = { |
| .vidioc_querycap = wl1273_fm_vidioc_querycap, |
| .vidioc_g_input = wl1273_fm_vidioc_g_input, |
| .vidioc_s_input = wl1273_fm_vidioc_s_input, |
| .vidioc_g_audio = wl1273_fm_vidioc_g_audio, |
| .vidioc_s_audio = wl1273_fm_vidioc_s_audio, |
| .vidioc_g_tuner = wl1273_fm_vidioc_g_tuner, |
| .vidioc_s_tuner = wl1273_fm_vidioc_s_tuner, |
| .vidioc_g_frequency = wl1273_fm_vidioc_g_frequency, |
| .vidioc_s_frequency = wl1273_fm_vidioc_s_frequency, |
| .vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek, |
| .vidioc_g_modulator = wl1273_fm_vidioc_g_modulator, |
| .vidioc_s_modulator = wl1273_fm_vidioc_s_modulator, |
| .vidioc_log_status = wl1273_fm_vidioc_log_status, |
| }; |
| |
| static const struct video_device wl1273_viddev_template = { |
| .fops = &wl1273_fops, |
| .ioctl_ops = &wl1273_ioctl_ops, |
| .name = WL1273_FM_DRIVER_NAME, |
| .release = wl1273_vdev_release, |
| .vfl_dir = VFL_DIR_TX, |
| }; |
| |
| static int wl1273_fm_radio_remove(struct platform_device *pdev) |
| { |
| struct wl1273_device *radio = platform_get_drvdata(pdev); |
| struct wl1273_core *core = radio->core; |
| |
| dev_info(&pdev->dev, "%s.\n", __func__); |
| |
| free_irq(core->client->irq, radio); |
| core->pdata->free_resources(); |
| |
| v4l2_ctrl_handler_free(&radio->ctrl_handler); |
| video_unregister_device(&radio->videodev); |
| v4l2_device_unregister(&radio->v4l2dev); |
| |
| return 0; |
| } |
| |
| static int wl1273_fm_radio_probe(struct platform_device *pdev) |
| { |
| struct wl1273_core **core = pdev->dev.platform_data; |
| struct wl1273_device *radio; |
| struct v4l2_ctrl *ctrl; |
| int r = 0; |
| |
| pr_debug("%s\n", __func__); |
| |
| if (!core) { |
| dev_err(&pdev->dev, "No platform data.\n"); |
| r = -EINVAL; |
| goto pdata_err; |
| } |
| |
| radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL); |
| if (!radio) { |
| r = -ENOMEM; |
| goto pdata_err; |
| } |
| |
| /* RDS buffer allocation */ |
| radio->buf_size = rds_buf * RDS_BLOCK_SIZE; |
| radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL); |
| if (!radio->buffer) { |
| pr_err("Cannot allocate memory for RDS buffer.\n"); |
| r = -ENOMEM; |
| goto pdata_err; |
| } |
| |
| radio->core = *core; |
| radio->irq_flags = WL1273_IRQ_MASK; |
| radio->dev = &radio->core->client->dev; |
| radio->rds_on = false; |
| radio->core->mode = WL1273_MODE_OFF; |
| radio->tx_power = 118; |
| radio->core->audio_mode = WL1273_AUDIO_ANALOG; |
| radio->band = WL1273_BAND_OTHER; |
| radio->core->i2s_mode = WL1273_I2S_DEF_MODE; |
| radio->core->channel_number = 2; |
| radio->core->volume = WL1273_DEFAULT_VOLUME; |
| radio->rx_frequency = WL1273_BAND_OTHER_LOW; |
| radio->tx_frequency = WL1273_BAND_OTHER_HIGH; |
| radio->rangelow = WL1273_BAND_OTHER_LOW; |
| radio->rangehigh = WL1273_BAND_OTHER_HIGH; |
| radio->stereo = true; |
| radio->bus_type = "I2C"; |
| |
| if (radio->core->pdata->request_resources) { |
| r = radio->core->pdata->request_resources(radio->core->client); |
| if (r) { |
| dev_err(radio->dev, WL1273_FM_DRIVER_NAME |
| ": Cannot get platform data\n"); |
| goto pdata_err; |
| } |
| |
| dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); |
| |
| r = request_threaded_irq(radio->core->client->irq, NULL, |
| wl1273_fm_irq_thread_handler, |
| IRQF_ONESHOT | IRQF_TRIGGER_FALLING, |
| "wl1273-fm", radio); |
| if (r < 0) { |
| dev_err(radio->dev, WL1273_FM_DRIVER_NAME |
| ": Unable to register IRQ handler: %d\n", r); |
| goto err_request_irq; |
| } |
| } else { |
| dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ not configured"); |
| r = -EINVAL; |
| goto pdata_err; |
| } |
| |
| init_completion(&radio->busy); |
| init_waitqueue_head(&radio->read_queue); |
| |
| radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL); |
| if (!radio->write_buf) { |
| r = -ENOMEM; |
| goto write_buf_err; |
| } |
| |
| radio->dev = &pdev->dev; |
| radio->v4l2dev.ctrl_handler = &radio->ctrl_handler; |
| radio->rds_users = 0; |
| |
| r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); |
| if (r) { |
| dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); |
| goto write_buf_err; |
| } |
| |
| /* V4L2 configuration */ |
| radio->videodev = wl1273_viddev_template; |
| |
| radio->videodev.v4l2_dev = &radio->v4l2dev; |
| |
| v4l2_ctrl_handler_init(&radio->ctrl_handler, 6); |
| |
| /* add in ascending ID order */ |
| v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, |
| V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1, |
| WL1273_DEFAULT_VOLUME); |
| |
| v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, |
| V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); |
| |
| v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops, |
| V4L2_CID_TUNE_PREEMPHASIS, |
| V4L2_PREEMPHASIS_75_uS, 0x03, |
| V4L2_PREEMPHASIS_50_uS); |
| |
| v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, |
| V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118); |
| |
| ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops, |
| V4L2_CID_TUNE_ANTENNA_CAPACITOR, |
| 0, 255, 1, 255); |
| if (ctrl) |
| ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; |
| |
| if (radio->ctrl_handler.error) { |
| r = radio->ctrl_handler.error; |
| dev_err(&pdev->dev, "Ctrl handler error: %d\n", r); |
| goto handler_init_err; |
| } |
| |
| video_set_drvdata(&radio->videodev, radio); |
| platform_set_drvdata(pdev, radio); |
| |
| /* register video device */ |
| r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr); |
| if (r) { |
| dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME |
| ": Could not register video device\n"); |
| goto handler_init_err; |
| } |
| |
| return 0; |
| |
| handler_init_err: |
| v4l2_ctrl_handler_free(&radio->ctrl_handler); |
| v4l2_device_unregister(&radio->v4l2dev); |
| write_buf_err: |
| free_irq(radio->core->client->irq, radio); |
| err_request_irq: |
| radio->core->pdata->free_resources(); |
| pdata_err: |
| return r; |
| } |
| |
| static struct platform_driver wl1273_fm_radio_driver = { |
| .probe = wl1273_fm_radio_probe, |
| .remove = wl1273_fm_radio_remove, |
| .driver = { |
| .name = "wl1273_fm_radio", |
| }, |
| }; |
| |
| module_platform_driver(wl1273_fm_radio_driver); |
| |
| MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>"); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:wl1273_fm_radio"); |