From patchwork Mon Aug 2 14:06:40 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matti Aaltonen X-Patchwork-Id: 116512 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o72E7ZDP027478 for ; Mon, 2 Aug 2010 14:07:35 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752722Ab0HBOHd (ORCPT ); Mon, 2 Aug 2010 10:07:33 -0400 Received: from smtp.nokia.com ([192.100.122.230]:60893 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751452Ab0HBOHc (ORCPT ); Mon, 2 Aug 2010 10:07:32 -0400 Received: from vaebh105.NOE.Nokia.com (vaebh105.europe.nokia.com [10.160.244.31]) by mgw-mx03.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o72E6w8I003669; Mon, 2 Aug 2010 17:07:18 +0300 Received: from esebh102.NOE.Nokia.com ([172.21.138.183]) by vaebh105.NOE.Nokia.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 2 Aug 2010 17:06:58 +0300 Received: from mgw-da02.ext.nokia.com ([147.243.128.26]) by esebh102.NOE.Nokia.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Mon, 2 Aug 2010 17:06:56 +0300 Received: from localhost.localdomain (masi.nmp.nokia.com [172.22.211.19]) by mgw-da02.ext.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o72E6kaX013150; Mon, 2 Aug 2010 17:06:51 +0300 From: "Matti J. Aaltonen" To: linux-media@vger.kernel.org, hverkuil@xs4all.nl, eduardo.valentin@nokia.com, mchehab@redhat.com Cc: "Matti J. Aaltonen" Subject: [PATCH v7 2/5] MFD: WL1273 FM Radio: MFD driver for the FM radio. Date: Mon, 2 Aug 2010 17:06:40 +0300 Message-Id: <1280758003-16118-3-git-send-email-matti.j.aaltonen@nokia.com> X-Mailer: git-send-email 1.6.1.3 In-Reply-To: <1280758003-16118-2-git-send-email-matti.j.aaltonen@nokia.com> References: <1280758003-16118-1-git-send-email-matti.j.aaltonen@nokia.com> <1280758003-16118-2-git-send-email-matti.j.aaltonen@nokia.com> X-OriginalArrivalTime: 02 Aug 2010 14:06:57.0363 (UTC) FILETIME=[F7ECFA30:01CB324B] X-Nokia-AV: Clean Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Mon, 02 Aug 2010 14:07:35 +0000 (UTC) diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c new file mode 100644 index 0000000..603b922 --- /dev/null +++ b/drivers/mfd/wl1273-core.c @@ -0,0 +1,612 @@ +/* + * MFD driver for wl1273 FM radio and audio codec submodules. + * + * Author: Matti Aaltonen + * + * Copyright: (C) 2010 Nokia Corporation + * + * 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. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include +#include +#include +#include +#include + +#define DRIVER_DESC "WL1273 FM Radio Core" + +#define WL1273_IRQ_MASK (WL1273_FR_EVENT | \ + WL1273_POW_ENB_EVENT) + +static const struct band_info bands[] = { + /* USA & Europe */ + { + .bottom_frequency = 87500, + .top_frequency = 108000, + .band = V4L2_FM_BAND_OTHER, + }, + /* Japan */ + { + .bottom_frequency = 76000, + .top_frequency = 90000, + .band = V4L2_FM_BAND_JAPAN, + }, +}; + +/* + * static unsigned char radio_band - Band + * + * The bands are 0 == USA-Europe, 1 == Japan. USA-Europe is the default. + */ +static unsigned char radio_band; +module_param(radio_band, byte, 0); +MODULE_PARM_DESC(radio_band, "Band: 0=USA-Europe, 1=Japan"); + +/* + * 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, "RDS buffer entries: *100*"); + +int wl1273_fm_read_reg(struct wl1273_core *core, u8 reg, u16 *value) +{ + struct i2c_client *client = core->i2c_dev; + u8 b[2]; + int r; + + r = i2c_smbus_read_i2c_block_data(client, reg, 2, b); + if (r != 2) { + dev_err(&client->dev, "%s: Read: %d fails.\n", __func__, reg); + return -EREMOTEIO; + } + + *value = (u16)b[0] << 8 | b[1]; + + return 0; +} +EXPORT_SYMBOL(wl1273_fm_read_reg); + +int wl1273_fm_write_cmd(struct wl1273_core *core, u8 cmd, u16 param) +{ + struct i2c_client *client = core->i2c_dev; + u8 buf[] = { (param >> 8) & 0xff, param & 0xff }; + int r; + + r = i2c_smbus_write_i2c_block_data(client, cmd, 2, buf); + if (r) { + dev_err(&client->dev, "%s: Cmd: %d fails.\n", __func__, cmd); + return r; + } + + return 0; +} +EXPORT_SYMBOL(wl1273_fm_write_cmd); + +int wl1273_fm_write_data(struct wl1273_core *core, u8 *data, u16 len) +{ + struct i2c_client *client = core->i2c_dev; + struct i2c_msg msg[1]; + int r; + + msg[0].addr = client->addr; + msg[0].flags = 0; + msg[0].buf = data; + msg[0].len = len; + + r = i2c_transfer(client->adapter, msg, 1); + + if (r != 1) { + dev_err(&client->dev, "%s: write error.\n", __func__); + return -EREMOTEIO; + } + + return 0; +} +EXPORT_SYMBOL(wl1273_fm_write_data); + +/** + * wl1273_fm_set_audio() - Set audio mode. + * @core: A pointer to the device struct. + * @new_mode: The new audio mode. + * + * Audio modes are WL1273_AUDIO_DIGITAL and WL1273_AUDIO_ANALOG. + */ +int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int new_mode) +{ + int r = 0; + + if (core->mode == WL1273_MODE_OFF || + core->mode == WL1273_MODE_SUSPENDED) + return -EPERM; + + if (core->mode == WL1273_MODE_RX && new_mode == WL1273_AUDIO_DIGITAL) { + r = wl1273_fm_write_cmd(core, WL1273_PCM_MODE_SET, + WL1273_PCM_DEF_MODE); + if (r) + goto out; + + r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET, + core->i2s_mode); + if (r) + goto out; + + r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE, + WL1273_AUDIO_ENABLE_I2S); + if (r) + goto out; + + } else if (core->mode == WL1273_MODE_RX && + new_mode == WL1273_AUDIO_ANALOG) { + r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE, + WL1273_AUDIO_ENABLE_ANALOG); + if (r) + goto out; + + } else if (core->mode == WL1273_MODE_TX && + new_mode == WL1273_AUDIO_DIGITAL) { + r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET, + core->i2s_mode); + if (r) + goto out; + + r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET, + WL1273_AUDIO_IO_SET_I2S); + if (r) + goto out; + + } else if (core->mode == WL1273_MODE_TX && + new_mode == WL1273_AUDIO_ANALOG) { + r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET, + WL1273_AUDIO_IO_SET_ANALOG); + if (r) + goto out; + } + + core->audio_mode = new_mode; + +out: + return r; +} +EXPORT_SYMBOL(wl1273_fm_set_audio); + +/** + * wl1273_fm_set_volume() - Set volume. + * @core: A pointer to the device struct. + * @volume: The new volume value. + */ +int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume) +{ + u16 val; + int r; + + if (volume > WL1273_MAX_VOLUME) + return -EINVAL; + + if (core->volume == volume) + return 0; + + val = volume; + r = wl1273_fm_read_reg(core, WL1273_VOLUME_SET, &val); + if (r) + return r; + + core->volume = volume; + return 0; +} +EXPORT_SYMBOL(wl1273_fm_set_volume); + +#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_core *core) +{ + struct i2c_client *client = core->i2c_dev; + struct device *dev = &client->dev; + 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 = sizeof(b0) + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .buf = (u8 *) &rds, + .len = sizeof(rds), + } + }; + int r; + + if (core->mode != WL1273_MODE_RX) + return 0; + + r = wl1273_fm_read_reg(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, 2); + if (r != 2) { + dev_err(dev, WL1273_FM_DRIVER_NAME + ": %s: read_rds error r == %i)\n", + __func__, r); + } + + status = rds.block; + + if (!WL1273_FIFO_HAS_DATA(status)) + break; + + /* fill bits 0-5 */ + rds.block = 0x07 & 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(&core->buffer[core->wr_index], &rds, 3); + core->wr_index += 3; + + /* wrap write pointer */ + if (core->wr_index >= core->buf_size) + core->wr_index = 0; + + /* check for overflow & start over */ + if (core->wr_index == core->rd_index) { + dev_dbg(dev, "RDS OVERFLOW"); + + core->rd_index = 0; + core->wr_index = 0; + break; + } + } while (WL1273_FIFO_HAS_DATA(status)); + + /* wake up read queue */ + if (core->wr_index != core->rd_index) + wake_up_interruptible(&core->read_queue); + + return 0; +} + +static void wl1273_fm_rds_work(struct wl1273_core *core) +{ + wl1273_fm_rds(core); +} + +static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id) +{ + int r; + u16 flags; + struct wl1273_core *core = dev_id; + + r = wl1273_fm_read_reg(core, WL1273_FLAG_GET, &flags); + if (r) + goto out; + + if (flags & WL1273_BL_EVENT) { + core->irq_received = flags; + dev_dbg(&core->i2c_dev->dev, "IRQ: BL\n"); + } + + if (flags & WL1273_RDS_EVENT) { + msleep(200); + + wl1273_fm_rds_work(core); + } + + if (flags & WL1273_BBLK_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: BBLK\n"); + + if (flags & WL1273_LSYNC_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: LSYNC\n"); + + if (flags & WL1273_LEV_EVENT) { + u16 level; + + r = wl1273_fm_read_reg(core, WL1273_RSSI_LVL_GET, &level); + + if (r) + goto out; + + if (level > 14) + dev_dbg(&core->i2c_dev->dev, "IRQ: LEV: 0x%x04\n", + level); + } + + if (flags & WL1273_IFFR_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: IFFR\n"); + + if (flags & WL1273_PI_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: PI\n"); + + if (flags & WL1273_PD_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: PD\n"); + + if (flags & WL1273_STIC_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: STIC\n"); + + if (flags & WL1273_MAL_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: MAL\n"); + + if (flags & WL1273_POW_ENB_EVENT) { + complete(&core->busy); + dev_dbg(&core->i2c_dev->dev, "NOT BUSY\n"); + dev_dbg(&core->i2c_dev->dev, "IRQ: POW_ENB\n"); + } + + if (flags & WL1273_SCAN_OVER_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: SCAN_OVER\n"); + + if (flags & WL1273_ERROR_EVENT) + dev_dbg(&core->i2c_dev->dev, "IRQ: ERROR\n"); + + if (flags & WL1273_FR_EVENT) { + u16 freq; + + dev_dbg(&core->i2c_dev->dev, "IRQ: FR:\n"); + + if (core->mode == WL1273_MODE_RX) { + r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET, + TUNER_MODE_STOP_SEARCH); + if (r) { + dev_err(&core->i2c_dev->dev, + "%s: TUNER_MODE_SET fails: %d\n", + __func__, r); + goto out; + } + + r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &freq); + if (r) + goto out; + + core->rx_frequency = + bands[core->band].bottom_frequency + + freq * 50; + + /* + * The driver works better with this msleep, + * the documentation doesn't mention it. + */ + msleep(10); + + dev_dbg(&core->i2c_dev->dev, "%dkHz\n", + core->rx_frequency); + + } else { + r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &freq); + if (r) + goto out; + + dev_dbg(&core->i2c_dev->dev, "%dkHz\n", freq); + } + dev_dbg(&core->i2c_dev->dev, "%s: NOT BUSY\n", __func__); + } + +out: + wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET, + core->irq_flags); + complete(&core->busy); + + return IRQ_HANDLED; +} + +static struct i2c_device_id wl1273_driver_id_table[] = { + { WL1273_FM_DRIVER_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wl1273_driver_id_table); + +static int wl1273_core_remove(struct i2c_client *client) +{ + struct wl1273_core *core = i2c_get_clientdata(client); + struct wl1273_fm_platform_data *pdata = + client->dev.platform_data; + + dev_dbg(&client->dev, "%s\n", __func__); + + mfd_remove_devices(&client->dev); + i2c_set_clientdata(client, core); + + free_irq(client->irq, core); + pdata->free_resources(); + + kfree(core->buffer); + kfree(core); + + return 0; +} + +static int __devinit wl1273_core_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct wl1273_fm_platform_data *pdata = client->dev.platform_data; + int r = 0; + struct wl1273_core *core; + int children = 0; + + dev_dbg(&client->dev, "%s\n", __func__); + + if (!pdata) { + dev_err(&client->dev, "No platform data.\n"); + return -EINVAL; + } + + core = kzalloc(sizeof(*core), GFP_KERNEL); + if (!core) + return -ENOMEM; + + /* RDS buffer allocation */ + core->buf_size = rds_buf * 3; + core->buffer = kmalloc(core->buf_size, GFP_KERNEL); + if (!core->buffer) { + dev_err(&client->dev, + "Cannot allocate memory for RDS buffer.\n"); + r = -ENOMEM; + goto err_kmalloc; + } + + core->irq_flags = WL1273_IRQ_MASK; + core->i2c_dev = client; + core->rds_on = false; + core->mode = WL1273_MODE_OFF; + core->tx_power = 4; + core->audio_mode = WL1273_AUDIO_ANALOG; + core->band = radio_band; + core->bands = bands; + core->number_of_bands = ARRAY_SIZE(bands); + core->i2s_mode = WL1273_I2S_DEF_MODE; + core->channel_number = 2; + core->volume = WL1273_DEFAULT_VOLUME; + core->rx_frequency = bands[core->band].bottom_frequency; + core->tx_frequency = bands[core->band].top_frequency; + core->stereo = true; + + dev_dbg(&client->dev, "radio_band: %d\n", radio_band); + + mutex_init(&core->lock); + + pdata = client->dev.platform_data; + if (pdata) { + r = pdata->request_resources(client); + if (r) { + dev_err(&client->dev, WL1273_FM_DRIVER_NAME + ": Cannot get platform data\n"); + goto err_new_mixer; + } + + r = request_threaded_irq(client->irq, NULL, + wl1273_fm_irq_thread_handler, + IRQF_ONESHOT | IRQF_TRIGGER_FALLING, + "wl1273-fm", core); + if (r < 0) { + dev_err(&client->dev, WL1273_FM_DRIVER_NAME + ": Unable to register IRQ handler\n"); + goto err_request_irq; + } + } else { + dev_err(&client->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ" + " not configured"); + r = -EINVAL; + goto err_new_mixer; + } + + init_completion(&core->busy); + init_waitqueue_head(&core->read_queue); + + i2c_set_clientdata(client, core); + + if (pdata->children & WL1273_RADIO_CHILD) { + struct mfd_cell *cell = &core->cells[children]; + dev_dbg(&client->dev, "%s: Have V4L2.\n", __func__); + cell->name = "wl1273_fm_radio"; + cell->platform_data = &core; + cell->data_size = sizeof(core); + children++; + } + + if (pdata->children & WL1273_CODEC_CHILD) { + struct mfd_cell *cell = &core->cells[children]; + dev_dbg(&client->dev, "%s: Have codec.\n", __func__); + cell->name = "wl1273_codec_audio"; + cell->platform_data = &core; + cell->data_size = sizeof(core); + children++; + } + + if (children) { + dev_dbg(&client->dev, "%s: Have children.\n", __func__); + r = mfd_add_devices(&client->dev, -1, core->cells, + children, NULL, 0); + } else { + dev_err(&client->dev, "No platform data found for children.\n"); + r = -ENODEV; + } + + if (!r) + return 0; + + i2c_set_clientdata(client, NULL); + kfree(core); + free_irq(client->irq, core); +err_request_irq: + pdata->free_resources(); +err_new_mixer: + kfree(core->buffer); +err_kmalloc: + kfree(core); + dev_dbg(&client->dev, "%s\n", __func__); + + return r; +} + +static struct i2c_driver wl1273_core_driver = { + .driver = { + .name = WL1273_FM_DRIVER_NAME, + }, + .probe = wl1273_core_probe, + .id_table = wl1273_driver_id_table, + .remove = __devexit_p(wl1273_core_remove), +}; + +static int __init wl1273_core_init(void) +{ + int r; + + r = i2c_add_driver(&wl1273_core_driver); + if (r) { + pr_err(WL1273_FM_DRIVER_NAME + ": driver registration failed\n"); + return r; + } + + return 0; +} + +static void __exit wl1273_core_exit(void) +{ + flush_scheduled_work(); + + i2c_del_driver(&wl1273_core_driver); +} +late_initcall(wl1273_core_init); +module_exit(wl1273_core_exit); + +MODULE_AUTHOR("Matti Aaltonen "); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/wl1273-core.h b/include/linux/mfd/wl1273-core.h new file mode 100644 index 0000000..6979778 --- /dev/null +++ b/include/linux/mfd/wl1273-core.h @@ -0,0 +1,314 @@ +/* + * include/media/radio/radio-wl1273.h + * + * Some definitions for the wl1273 radio receiver/transmitter chip. + * + * Copyright (C) Nokia Corporation + * Author: Matti J. Aaltonen + * + * 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. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef RADIO_WL1273_H +#define RADIO_WL1273_H + +#include +#include + +#define WL1273_FM_DRIVER_NAME "wl1273-fm" +#define RX71_FM_I2C_ADDR 0x22 + +#define WL1273_STEREO_GET 0 +#define WL1273_RSSI_LVL_GET 1 +#define WL1273_IF_COUNT_GET 2 +#define WL1273_FLAG_GET 3 +#define WL1273_RDS_SYNC_GET 4 +#define WL1273_RDS_DATA_GET 5 +#define WL1273_FREQ_SET 10 +#define WL1273_AF_FREQ_SET 11 +#define WL1273_MOST_MODE_SET 12 +#define WL1273_MOST_BLEND_SET 13 +#define WL1273_DEMPH_MODE_SET 14 +#define WL1273_SEARCH_LVL_SET 15 +#define WL1273_BAND_SET 16 +#define WL1273_MUTE_STATUS_SET 17 +#define WL1273_RDS_PAUSE_LVL_SET 18 +#define WL1273_RDS_PAUSE_DUR_SET 19 +#define WL1273_RDS_MEM_SET 20 +#define WL1273_RDS_BLK_B_SET 21 +#define WL1273_RDS_MSK_B_SET 22 +#define WL1273_RDS_PI_MASK_SET 23 +#define WL1273_RDS_PI_SET 24 +#define WL1273_RDS_SYSTEM_SET 25 +#define WL1273_INT_MASK_SET 26 +#define WL1273_SEARCH_DIR_SET 27 +#define WL1273_VOLUME_SET 28 +#define WL1273_AUDIO_ENABLE 29 +#define WL1273_PCM_MODE_SET 30 +#define WL1273_I2S_MODE_CONFIG_SET 31 +#define WL1273_POWER_SET 32 +#define WL1273_INTX_CONFIG_SET 33 +#define WL1273_PULL_EN_SET 34 +#define WL1273_HILO_SET 35 +#define WL1273_SWITCH2FREF 36 +#define WL1273_FREQ_DRIFT_REPORT 37 + +#define WL1273_PCE_GET 40 +#define WL1273_FIRM_VER_GET 41 +#define WL1273_ASIC_VER_GET 42 +#define WL1273_ASIC_ID_GET 43 +#define WL1273_MAN_ID_GET 44 +#define WL1273_TUNER_MODE_SET 45 +#define WL1273_STOP_SEARCH 46 +#define WL1273_RDS_CNTRL_SET 47 + +#define WL1273_WRITE_HARDWARE_REG 100 +#define WL1273_CODE_DOWNLOAD 101 +#define WL1273_RESET 102 + +#define WL1273_FM_POWER_MODE 254 +#define WL1273_FM_INTERRUPT 255 + +/* Transmitter API */ + +#define WL1273_CHANL_SET 55 +#define WL1273_SCAN_SPACING_SET 56 +#define WL1273_REF_SET 57 +#define WL1273_POWER_ENB_SET 90 +#define WL1273_POWER_ATT_SET 58 +#define WL1273_POWER_LEV_SET 59 +#define WL1273_AUDIO_DEV_SET 60 +#define WL1273_PILOT_DEV_SET 61 +#define WL1273_RDS_DEV_SET 62 +#define WL1273_PUPD_SET 91 +#define WL1273_AUDIO_IO_SET 63 +#define WL1273_PREMPH_SET 64 +#define WL1273_MONO_SET 66 +#define WL1273_MUTE 92 +#define WL1273_MPX_LMT_ENABLE 67 +#define WL1273_PI_SET 93 +#define WL1273_ECC_SET 69 +#define WL1273_PTY 70 +#define WL1273_AF 71 +#define WL1273_DISPLAY_MODE 74 +#define WL1273_RDS_REP_SET 77 +#define WL1273_RDS_CONFIG_DATA_SET 98 +#define WL1273_RDS_DATA_SET 99 +#define WL1273_RDS_DATA_ENB 94 +#define WL1273_TA_SET 78 +#define WL1273_TP_SET 79 +#define WL1273_DI_SET 80 +#define WL1273_MS_SET 81 +#define WL1273_PS_SCROLL_SPEED 82 +#define WL1273_TX_AUDIO_LEVEL_TEST 96 +#define WL1273_TX_AUDIO_LEVEL_TEST_THRESHOLD 73 +#define WL1273_TX_AUDIO_INPUT_LEVEL_RANGE_SET 54 +#define WL1273_RX_ANTENNA_SELECT 87 +#define WL1273_I2C_DEV_ADDR_SET 86 +#define WL1273_REF_ERR_CALIB_PARAM_SET 88 +#define WL1273_REF_ERR_CALIB_PERIODICITY_SET 89 +#define WL1273_SOC_INT_TRIGGER 52 +#define WL1273_SOC_AUDIO_PATH_SET 83 +#define WL1273_SOC_PCMI_OVERRIDE 84 +#define WL1273_SOC_I2S_OVERRIDE 85 +#define WL1273_RSSI_BLOCK_SCAN_FREQ_SET 95 +#define WL1273_RSSI_BLOCK_SCAN_START 97 +#define WL1273_RSSI_BLOCK_SCAN_DATA_GET 5 +#define WL1273_READ_FMANT_TUNE_VALUE 104 + +#define WL1273_RDS_OFF 0 +#define WL1273_RDS_ON 1 +#define WL1273_RDS_RESET 2 + +#define WL1273_AUDIO_DIGITAL 0 +#define WL1273_AUDIO_ANALOG 1 + +#define WL1273_MODE_RX (1 << 0) +#define WL1273_MODE_TX (1 << 1) +#define WL1273_MODE_OFF (1 << 2) +#define WL1273_MODE_SUSPENDED (1 << 3) + +#define WL1273_RADIO_CHILD (1 << 0) +#define WL1273_CODEC_CHILD (1 << 1) + +#define WL1273_RX_MONO 1 +#define WL1273_RX_STEREO 0 +#define WL1273_TX_MONO 0 +#define WL1273_TX_STEREO 1 + +#define WL1273_MAX_VOLUME 0xffff +#define WL1273_DEFAULT_VOLUME 0x78b8 + +/* I2S protocol, left channel first, data width 16 bits */ +#define WL1273_PCM_DEF_MODE 0x00 + +/* Rx */ +#define WL1273_AUDIO_ENABLE_I2S (1 << 0) +#define WL1273_AUDIO_ENABLE_ANALOG (1 << 1) + +/* Tx */ +#define WL1273_AUDIO_IO_SET_ANALOG 0 +#define WL1273_AUDIO_IO_SET_I2S 1 + +#define WL1273_POWER_SET_OFF 0 +#define WL1273_POWER_SET_FM (1 << 0) +#define WL1273_POWER_SET_RDS (1 << 1) +#define WL1273_POWER_SET_RETENTION (1 << 4) + +#define WL1273_PUPD_SET_OFF 0x00 +#define WL1273_PUPD_SET_ON 0x01 +#define WL1273_PUPD_SET_RETENTION 0x10 + +/* I2S mode */ +#define WL1273_IS2_WIDTH_32 0x0 +#define WL1273_IS2_WIDTH_40 0x1 +#define WL1273_IS2_WIDTH_22_23 0x2 +#define WL1273_IS2_WIDTH_23_22 0x3 +#define WL1273_IS2_WIDTH_48 0x4 +#define WL1273_IS2_WIDTH_50 0x5 +#define WL1273_IS2_WIDTH_60 0x6 +#define WL1273_IS2_WIDTH_64 0x7 +#define WL1273_IS2_WIDTH_80 0x8 +#define WL1273_IS2_WIDTH_96 0x9 +#define WL1273_IS2_WIDTH_128 0xa +#define WL1273_IS2_WIDTH 0xf + +#define WL1273_IS2_FORMAT_STD (0x0 << 4) +#define WL1273_IS2_FORMAT_LEFT (0x1 << 4) +#define WL1273_IS2_FORMAT_RIGHT (0x2 << 4) +#define WL1273_IS2_FORMAT_USER (0x3 << 4) + +#define WL1273_IS2_MASTER (0x0 << 6) +#define WL1273_IS2_SLAVEW (0x1 << 6) + +#define WL1273_IS2_TRI_AFTER_SENDING (0x0 << 7) +#define WL1273_IS2_TRI_ALWAYS_ACTIVE (0x1 << 7) + +#define WL1273_IS2_SDOWS_RR (0x0 << 8) +#define WL1273_IS2_SDOWS_RF (0x1 << 8) +#define WL1273_IS2_SDOWS_FR (0x2 << 8) +#define WL1273_IS2_SDOWS_FF (0x3 << 8) + +#define WL1273_IS2_TRI_OPT (0x0 << 10) +#define WL1273_IS2_TRI_ALWAYS (0x1 << 10) + +#define WL1273_IS2_RATE_48K (0x0 << 12) +#define WL1273_IS2_RATE_44_1K (0x1 << 12) +#define WL1273_IS2_RATE_32K (0x2 << 12) +#define WL1273_IS2_RATE_22_05K (0x4 << 12) +#define WL1273_IS2_RATE_16K (0x5 << 12) +#define WL1273_IS2_RATE_12K (0x8 << 12) +#define WL1273_IS2_RATE_11_025 (0x9 << 12) +#define WL1273_IS2_RATE_8K (0xa << 12) +#define WL1273_IS2_RATE (0xf << 12) + +#define WL1273_I2S_DEF_MODE (WL1273_IS2_WIDTH_32 | \ + WL1273_IS2_FORMAT_STD | \ + WL1273_IS2_MASTER | \ + WL1273_IS2_TRI_AFTER_SENDING | \ + WL1273_IS2_SDOWS_RR | \ + WL1273_IS2_TRI_OPT | \ + WL1273_IS2_RATE_48K) + +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +#define WL1273_FR_EVENT (1 << 0) +#define WL1273_BL_EVENT (1 << 1) +#define WL1273_RDS_EVENT (1 << 2) +#define WL1273_BBLK_EVENT (1 << 3) +#define WL1273_LSYNC_EVENT (1 << 4) +#define WL1273_LEV_EVENT (1 << 5) +#define WL1273_IFFR_EVENT (1 << 6) +#define WL1273_PI_EVENT (1 << 7) +#define WL1273_PD_EVENT (1 << 8) +#define WL1273_STIC_EVENT (1 << 9) +#define WL1273_MAL_EVENT (1 << 10) +#define WL1273_POW_ENB_EVENT (1 << 11) +#define WL1273_SCAN_OVER_EVENT (1 << 12) +#define WL1273_ERROR_EVENT (1 << 13) + +#define TUNER_MODE_STOP_SEARCH 0 +#define TUNER_MODE_PRESET 1 +#define TUNER_MODE_AUTO_SEEK 2 +#define TUNER_MODE_AF 3 +#define TUNER_MODE_AUTO_SEEK_PI 4 +#define TUNER_MODE_AUTO_SEEK_BULK 5 + +struct band_info { + u32 bottom_frequency; + u32 top_frequency; + u8 band; +}; + +struct wl1273_fm_platform_data { + int (*request_resources) (struct i2c_client *client); + void (*free_resources) (void); + void (*enable) (void); + void (*disable) (void); + + u8 forbidden_modes; + unsigned int children; +}; + +#define WL1273_FM_CORE_CELLS 2 + +struct wl1273_core { + struct mfd_cell cells[WL1273_FM_CORE_CELLS]; + struct i2c_client *i2c_dev; + + u8 forbidden; + unsigned int mode; + unsigned int preemphasis; + unsigned int audio_mode; + unsigned int spacing; + unsigned int tx_power; + unsigned int rx_frequency; + unsigned int tx_frequency; + unsigned int band; + unsigned int i2s_mode; + unsigned int channel_number; + unsigned int number_of_bands; + unsigned int volume; + bool stereo; + + const struct band_info *bands; + + /* RDS */ + bool rds_on; + struct delayed_work work; + + 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; +}; + +int wl1273_fm_write_cmd(struct wl1273_core *core, u8 cmd, u16 param); +int wl1273_fm_write_data(struct wl1273_core *core, u8 *data, u16 len); +int wl1273_fm_read_reg(struct wl1273_core *core, u8 reg, u16 *value); + +int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int mode); +int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume); + +#endif /* ifndef RADIO_WL1273_H */