From patchwork Fri Oct 15 15:07:53 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Levitsky X-Patchwork-Id: 256851 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o9FF8nap008417 for ; Fri, 15 Oct 2010 15:08:50 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755933Ab0JOPIk (ORCPT ); Fri, 15 Oct 2010 11:08:40 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:56296 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755350Ab0JOPIj (ORCPT ); Fri, 15 Oct 2010 11:08:39 -0400 Received: by mail-fx0-f46.google.com with SMTP id 4so486689fxm.19 for ; Fri, 15 Oct 2010 08:08:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:to:cc:subject:date :message-id:x-mailer:in-reply-to:references; bh=BmezXI8EyBsCX6jcJBlv6iY/sjBPygiipCIRkQypWQU=; b=UEG+/5avJAWITEr30mCJ/qqZ8EMvGFyNE3neW86Dav7wR0Tltq4pA++tahGSnAWgxV ZMvIfUw1RH+F9MvnHe6xAQJubzyvIHexOwsy2EL2NB12ggxGrzC5EL2iqlmUgCb4cy+a UmnZ3hUGjsud2VWsWWnhJcpu9Zd16NIGobBZI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=O/X6SE45JJlJ6LxZXJ592ooeTC1f3hWTrXBj809j9RR7/f8MZRw9mz2pSmBzYbPaQg tbmQF+OQKhTRHSOpIgY7lLZzei65l37AsN1mTvlrbiZvvhfZInAy1/A7bos52A5H8k6y 3u/q97nkNWUJAjIfJ8JQQPbXf7uJSrCDUXCQ8= Received: by 10.204.54.68 with SMTP id p4mr777408bkg.184.1287155313292; Fri, 15 Oct 2010 08:08:33 -0700 (PDT) Received: from maxim-laptop ([77.125.7.102]) by mx.google.com with ESMTPS id t10sm6907156bkj.16.2010.10.15.08.08.25 (version=SSLv3 cipher=RC4-MD5); Fri, 15 Oct 2010 08:08:31 -0700 (PDT) From: Maxim Levitsky To: lirc-list@lists.sourceforge.net Cc: Jarod Wilson , =?UTF-8?q?David=20H=C3=A4rdeman?= , mchehab@infradead.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, Maxim Levitsky Subject: [PATCH 7/7] IR: ene_ir: don't upload all settings on each TX packet. Date: Fri, 15 Oct 2010 17:07:53 +0200 Message-Id: <1287155273-16171-8-git-send-email-maximlevitsky@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1287155273-16171-1-git-send-email-maximlevitsky@gmail.com> References: <1287155273-16171-1-git-send-email-maximlevitsky@gmail.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Fri, 15 Oct 2010 15:08:50 +0000 (UTC) diff --git a/drivers/media/IR/ene_ir.c b/drivers/media/IR/ene_ir.c index 1962652..685db83 100644 --- a/drivers/media/IR/ene_ir.c +++ b/drivers/media/IR/ene_ir.c @@ -43,7 +43,7 @@ #include "ene_ir.h" static int sample_period; -static bool learning_mode; +static bool learning_mode_force; static int debug; static bool txsim; @@ -190,6 +190,145 @@ static int ene_hw_detect(struct ene_device *dev) return 0; } +/* Read properities of hw sample buffer */ +static void ene_rx_setup_hw_buffer(struct ene_device *dev) +{ + u16 tmp; + + ene_rx_read_hw_pointer(dev); + dev->r_pointer = dev->w_pointer; + + if (!dev->hw_extra_buffer) { + dev->buffer_len = ENE_FW_PACKET_SIZE * 2; + return; + } + + tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER); + tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER+1) << 8; + dev->extra_buf1_address = tmp; + + dev->extra_buf1_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 2); + + tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 3); + tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 4) << 8; + dev->extra_buf2_address = tmp; + + dev->extra_buf2_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 5); + + dev->buffer_len = dev->extra_buf1_len + dev->extra_buf2_len + 8; + + ene_notice("Hardware uses 2 extended buffers:"); + ene_notice(" 0x%04x - len : %d", dev->extra_buf1_address, + dev->extra_buf1_len); + ene_notice(" 0x%04x - len : %d", dev->extra_buf2_address, + dev->extra_buf2_len); + + ene_notice("Total buffer len = %d", dev->buffer_len); + + if (dev->buffer_len > 64 || dev->buffer_len < 16) + goto error; + + if (dev->extra_buf1_address > 0xFBFC || + dev->extra_buf1_address < 0xEC00) + goto error; + + if (dev->extra_buf2_address > 0xFBFC || + dev->extra_buf2_address < 0xEC00) + goto error; + + if (dev->r_pointer > dev->buffer_len) + goto error; + + ene_set_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); + return; +error: + ene_warn("Error validating extra buffers, device probably won't work"); + dev->hw_extra_buffer = false; + ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); +} + + +/* Restore the pointers to extra buffers - to make module reload work*/ +static void ene_rx_restore_hw_buffer(struct ene_device *dev) +{ + if (!dev->hw_extra_buffer) + return; + + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 0, + dev->extra_buf1_address & 0xFF); + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 1, + dev->extra_buf1_address >> 8); + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 2, dev->extra_buf1_len); + + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 3, + dev->extra_buf2_address & 0xFF); + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 4, + dev->extra_buf2_address >> 8); + ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 5, + dev->extra_buf2_len); + ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); +} + +/* Read hardware write pointer */ +static void ene_rx_read_hw_pointer(struct ene_device *dev) +{ + if (dev->hw_extra_buffer) + dev->w_pointer = ene_read_reg(dev, ENE_FW_RX_POINTER); + else + dev->w_pointer = ene_read_reg(dev, ENE_FW2) + & ENE_FW2_BUF_WPTR ? 0 : ENE_FW_PACKET_SIZE; + + dbg_verbose("RB: HW write pointer: %02x, driver read pointer: %02x", + dev->w_pointer, dev->r_pointer); +} + +/* Gets address of next sample from HW ring buffer */ +static int ene_rx_get_sample_reg(struct ene_device *dev) +{ + int r_pointer; + + if (dev->r_pointer == dev->w_pointer) { + dbg_verbose("RB: hit end, try update w_pointer"); + ene_rx_read_hw_pointer(dev); + } + + if (dev->r_pointer == dev->w_pointer) { + dbg_verbose("RB: end of data at %d", dev->r_pointer); + return 0; + } + + dbg_verbose("RB: reading at offset %d", dev->r_pointer); + r_pointer = dev->r_pointer; + + dev->r_pointer++; + if (dev->r_pointer == dev->buffer_len) + dev->r_pointer = 0; + + dbg_verbose("RB: next read will be from offset %d", dev->r_pointer); + + if (r_pointer < 8) { + dbg_verbose("RB: read at main buffer at %d", r_pointer); + return ENE_FW_SAMPLE_BUFFER + r_pointer; + } + + r_pointer -= 8; + + if (r_pointer < dev->extra_buf1_len) { + dbg_verbose("RB: read at 1st extra buffer at %d", r_pointer); + return dev->extra_buf1_address + r_pointer; + } + + r_pointer -= dev->extra_buf1_len; + + if (r_pointer < dev->extra_buf2_len) { + dbg_verbose("RB: read at 2nd extra buffer at %d", r_pointer); + return dev->extra_buf2_address + r_pointer; + } + + dbg("attempt to read beyong ring bufer end"); + return 0; +} + /* Sense current received carrier */ void ene_rx_sense_carrier(struct ene_device *dev) { @@ -223,14 +362,14 @@ void ene_rx_sense_carrier(struct ene_device *dev) } /* this enables/disables the CIR RX engine */ -static void ene_enable_cir_engine(struct ene_device *dev, bool enable) +static void ene_rx_enable_cir_engine(struct ene_device *dev, bool enable) { ene_set_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN | ENE_CIRCFG_RX_IRQ, enable); } /* this selects input for CIR engine. Ether GPIO 0A or GPIO40*/ -static void ene_select_rx_input(struct ene_device *dev, bool gpio_0a) +static void ene_rx_select_input(struct ene_device *dev, bool gpio_0a) { ene_set_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_GPIO0A, gpio_0a); } @@ -239,7 +378,7 @@ static void ene_select_rx_input(struct ene_device *dev, bool gpio_0a) * this enables alternative input via fan tachometer sensor and bypasses * the hw CIR engine */ -static void ene_enable_fan_input(struct ene_device *dev, bool enable) +static void ene_rx_enable_fan_input(struct ene_device *dev, bool enable) { if (!dev->hw_fan_input) return; @@ -250,16 +389,18 @@ static void ene_enable_fan_input(struct ene_device *dev, bool enable) ene_write_reg(dev, ENE_FAN_AS_IN1, ENE_FAN_AS_IN1_EN); ene_write_reg(dev, ENE_FAN_AS_IN2, ENE_FAN_AS_IN2_EN); } - dev->rx_fan_input_inuse = enable; } /* setup the receiver for RX*/ static void ene_rx_setup(struct ene_device *dev) { - bool learning_mode = dev->learning_enabled || + bool learning_mode = dev->learning_mode_enabled || dev->carrier_detect_enabled; int sample_period_adjust = 0; + dbg("RX: setup receiver, learning mode = %d", learning_mode); + + /* This selects RLC input and clears CFG2 settings */ ene_write_reg(dev, ENE_CIRCFG2, 0x00); @@ -284,7 +425,7 @@ static void ene_rx_setup(struct ene_device *dev) and vice versa. This input will carry non demodulated signal, and we will tell the hw to demodulate it itself */ - ene_select_rx_input(dev, !dev->hw_use_gpio_0a); + ene_rx_select_input(dev, !dev->hw_use_gpio_0a); dev->rx_fan_input_inuse = false; /* Enable carrier demodulation */ @@ -298,7 +439,7 @@ static void ene_rx_setup(struct ene_device *dev) if (dev->hw_fan_input) dev->rx_fan_input_inuse = true; else - ene_select_rx_input(dev, dev->hw_use_gpio_0a); + ene_rx_select_input(dev, dev->hw_use_gpio_0a); /* Disable carrier detection & demodulation */ ene_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_CARR_DEMOD); @@ -339,7 +480,6 @@ select_timeout: static void ene_rx_enable(struct ene_device *dev) { u8 reg_value; - dbg("RX: setup receiver, learning mode = %d", learning_mode); /* Enable system interrupt */ if (dev->hw_revision < ENE_HW_C) { @@ -354,8 +494,8 @@ static void ene_rx_enable(struct ene_device *dev) } /* Enable inputs */ - ene_enable_fan_input(dev, dev->rx_fan_input_inuse); - ene_enable_cir_engine(dev, !dev->rx_fan_input_inuse); + ene_rx_enable_fan_input(dev, dev->rx_fan_input_inuse); + ene_rx_enable_cir_engine(dev, !dev->rx_fan_input_inuse); /* ack any pending irqs - just in case */ ene_irq_status(dev); @@ -372,8 +512,8 @@ static void ene_rx_enable(struct ene_device *dev) static void ene_rx_disable(struct ene_device *dev) { /* disable inputs */ - ene_enable_cir_engine(dev, false); - ene_enable_fan_input(dev, false); + ene_rx_enable_cir_engine(dev, false); + ene_rx_enable_fan_input(dev, false); /* disable hardware IRQ and firmware flag */ ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_ENABLE | ENE_FW1_IRQ); @@ -382,8 +522,60 @@ static void ene_rx_disable(struct ene_device *dev) dev->rx_enabled = false; } +/* This resets the receiver. Usefull to stop stream of spaces at end of + * transmission + */ +static void ene_rx_reset(struct ene_device *dev) +{ + ene_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN); + ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN); +} + +/* Set up the TX carrier frequency and duty cycle */ +static void ene_tx_set_carrier(struct ene_device *dev) +{ + u8 tx_puls_width; + unsigned long flags; + + spin_lock_irqsave(&dev->hw_lock, flags); + + ene_set_clear_reg_mask(dev, ENE_CIRCFG, + ENE_CIRCFG_TX_CARR, dev->tx_period > 0); + + if (!dev->tx_period) + goto unlock; + + BUG_ON(dev->tx_duty_cycle >= 100 || dev->tx_duty_cycle <= 0); + + tx_puls_width = dev->tx_period / (100 / dev->tx_duty_cycle); + + if (!tx_puls_width) + tx_puls_width = 1; + + dbg("TX: pulse distance = %d * 500 ns", dev->tx_period); + dbg("TX: pulse width = %d * 500 ns", tx_puls_width); + + ene_write_reg(dev, ENE_CIRMOD_PRD, dev->tx_period | ENE_CIRMOD_PRD_POL); + ene_write_reg(dev, ENE_CIRMOD_HPRD, tx_puls_width); +unlock: + spin_unlock_irqrestore(&dev->hw_lock, flags); +} + +/* Enable/disable transmitters */ +static void ene_tx_set_transmitters(struct ene_device *dev) +{ + unsigned long flags; + + spin_lock_irqsave(&dev->hw_lock, flags); + ene_set_clear_reg_mask(dev, ENE_GPIOFS8, ENE_GPIOFS8_GPIO41, + !!(dev->transmitter_mask & 0x01)); + ene_set_clear_reg_mask(dev, ENE_GPIOFS1, ENE_GPIOFS1_GPIO0D, + !!(dev->transmitter_mask & 0x02)); + spin_unlock_irqrestore(&dev->hw_lock, flags); +} + /* prepare transmission */ -static void ene_tx_prepare(struct ene_device *dev) +static void ene_tx_enable(struct ene_device *dev) { u8 conf1 = ene_read_reg(dev, ENE_CIRCFG); u8 fwreg2 = ene_read_reg(dev, ENE_FW2); @@ -400,32 +592,6 @@ static void ene_tx_prepare(struct ene_device *dev) if (!(fwreg2 & (ENE_FW2_EMMITER1_CONN | ENE_FW2_EMMITER2_CONN))) ene_warn("TX: transmitter cable isn't connected!"); - /* Set transmitter mask */ - ene_set_clear_reg_mask(dev, ENE_GPIOFS8, ENE_GPIOFS8_GPIO41, - !!(dev->transmitter_mask & 0x01)); - ene_set_clear_reg_mask(dev, ENE_GPIOFS1, ENE_GPIOFS1_GPIO0D, - !!(dev->transmitter_mask & 0x02)); - - /* Set the carrier period && duty cycle */ - if (dev->tx_period) { - - int tx_puls_width = dev->tx_period / (100 / dev->tx_duty_cycle); - - if (!tx_puls_width) - tx_puls_width = 1; - - dbg("TX: pulse distance = %d * 500 ns", dev->tx_period); - dbg("TX: pulse width = %d * 500 ns", tx_puls_width); - - ene_write_reg(dev, ENE_CIRMOD_PRD, ENE_CIRMOD_PRD_POL | - dev->tx_period); - - ene_write_reg(dev, ENE_CIRMOD_HPRD, tx_puls_width); - - conf1 |= ENE_CIRCFG_TX_CARR; - } else - conf1 &= ~ENE_CIRCFG_TX_CARR; - /* disable receive on revc */ if (dev->hw_revision == ENE_HW_C) conf1 &= ~ENE_CIRCFG_RX_EN; @@ -436,7 +602,7 @@ static void ene_tx_prepare(struct ene_device *dev) } /* end transmission */ -static void ene_tx_complete(struct ene_device *dev) +static void ene_tx_disable(struct ene_device *dev) { ene_write_reg(dev, ENE_CIRCFG, dev->saved_conf1); dev->tx_buffer = NULL; @@ -465,7 +631,7 @@ static void ene_tx_sample(struct ene_device *dev) goto exit; } else { dbg("TX: last sample sent by hardware"); - ene_tx_complete(dev); + ene_tx_disable(dev); complete(&dev->tx_complete); return; } @@ -509,85 +675,6 @@ static void ene_tx_irqsim(unsigned long data) spin_unlock_irqrestore(&dev->hw_lock, flags); } -/* Read properities of hw sample buffer */ -static void ene_setup_hw_buffer(struct ene_device *dev) -{ - u16 tmp; - - ene_read_hw_pointer(dev); - dev->r_pointer = dev->w_pointer; - - if (!dev->hw_extra_buffer) { - dev->buffer_len = ENE_FW_PACKET_SIZE * 2; - return; - } - - tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER); - tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER+1) << 8; - dev->extra_buf1_address = tmp; - - dev->extra_buf1_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 2); - - tmp = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 3); - tmp |= ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 4) << 8; - dev->extra_buf2_address = tmp; - - dev->extra_buf2_len = ene_read_reg(dev, ENE_FW_SAMPLE_BUFFER + 5); - - dev->buffer_len = dev->extra_buf1_len + dev->extra_buf2_len + 8; - - ene_notice("Hardware uses 2 extended buffers:"); - ene_notice(" 0x%04x - len : %d", dev->extra_buf1_address, - dev->extra_buf1_len); - ene_notice(" 0x%04x - len : %d", dev->extra_buf2_address, - dev->extra_buf2_len); - - ene_notice("Total buffer len = %d", dev->buffer_len); - - if (dev->buffer_len > 64 || dev->buffer_len < 16) - goto error; - - if (dev->extra_buf1_address > 0xFBFC || - dev->extra_buf1_address < 0xEC00) - goto error; - - if (dev->extra_buf2_address > 0xFBFC || - dev->extra_buf2_address < 0xEC00) - goto error; - - if (dev->r_pointer > dev->buffer_len) - goto error; - - ene_set_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); - return; -error: - ene_warn("Error validating extra buffers, device probably won't work"); - dev->hw_extra_buffer = false; - ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); -} - - -/* Restore the pointers to extra buffers - to make module reload work*/ -static void ene_restore_extra_buffer(struct ene_device *dev) -{ - if (!dev->hw_extra_buffer) - return; - - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 0, - dev->extra_buf1_address & 0xFF); - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 1, - dev->extra_buf1_address >> 8); - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 2, dev->extra_buf1_len); - - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 3, - dev->extra_buf2_address & 0xFF); - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 4, - dev->extra_buf2_address >> 8); - ene_write_reg(dev, ENE_FW_SAMPLE_BUFFER + 5, - dev->extra_buf2_len); - ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_EXTRA_BUF_HND); -} - /* read irq status and ack it */ static int ene_irq_status(struct ene_device *dev) @@ -632,66 +719,6 @@ static int ene_irq_status(struct ene_device *dev) return retval; } -/* Read hardware write pointer */ -static void ene_read_hw_pointer(struct ene_device *dev) -{ - if (dev->hw_extra_buffer) - dev->w_pointer = ene_read_reg(dev, ENE_FW_RX_POINTER); - else - dev->w_pointer = ene_read_reg(dev, ENE_FW2) - & ENE_FW2_BUF_WPTR ? 0 : ENE_FW_PACKET_SIZE; - - dbg_verbose("RB: HW write pointer: %02x, driver read pointer: %02x", - dev->w_pointer, dev->r_pointer); -} - -/* Gets address of next sample from HW ring buffer */ -static int ene_get_sample_reg(struct ene_device *dev) -{ - int r_pointer; - - if (dev->r_pointer == dev->w_pointer) { - dbg_verbose("RB: hit end, try update w_pointer"); - ene_read_hw_pointer(dev); - } - - if (dev->r_pointer == dev->w_pointer) { - dbg_verbose("RB: end of data at %d", dev->r_pointer); - return 0; - } - - dbg_verbose("RB: reading at offset %d", dev->r_pointer); - r_pointer = dev->r_pointer; - - dev->r_pointer++; - if (dev->r_pointer == dev->buffer_len) - dev->r_pointer = 0; - - dbg_verbose("RB: next read will be from offset %d", dev->r_pointer); - - if (r_pointer < 8) { - dbg_verbose("RB: read at main buffer at %d", r_pointer); - return ENE_FW_SAMPLE_BUFFER + r_pointer; - } - - r_pointer -= 8; - - if (r_pointer < dev->extra_buf1_len) { - dbg_verbose("RB: read at 1st extra buffer at %d", r_pointer); - return dev->extra_buf1_address + r_pointer; - } - - r_pointer -= dev->extra_buf1_len; - - if (r_pointer < dev->extra_buf2_len) { - dbg_verbose("RB: read at 2nd extra buffer at %d", r_pointer); - return dev->extra_buf2_address + r_pointer; - } - - dbg("attempt to read beyong ring bufer end"); - return 0; -} - /* interrupt handler */ static irqreturn_t ene_isr(int irq, void *data) { @@ -706,7 +733,7 @@ static irqreturn_t ene_isr(int irq, void *data) spin_lock_irqsave(&dev->hw_lock, flags); dbg_verbose("ISR called"); - ene_read_hw_pointer(dev); + ene_rx_read_hw_pointer(dev); irq_status = ene_irq_status(dev); if (!irq_status) @@ -738,7 +765,7 @@ static irqreturn_t ene_isr(int irq, void *data) while (1) { - reg = ene_get_sample_reg(dev); + reg = ene_rx_get_sample_reg(dev); dbg_verbose("next sample to read at: %04x", reg); if (!reg) @@ -788,17 +815,28 @@ unlock: } /* Initialize default settings */ -static void ene_setup_settings(struct ene_device *dev) +static void ene_setup_default_settings(struct ene_device *dev) { dev->tx_period = 32; dev->tx_duty_cycle = 50; /*%*/ dev->transmitter_mask = 0x03; - dev->learning_enabled = learning_mode; + dev->learning_mode_enabled = learning_mode_force; /* Set reasonable default timeout */ dev->props->timeout = MS_TO_NS(150000); } +/* Upload all hardware settings at once. Used at load and resume time */ +static void ene_setup_hw_settings(struct ene_device *dev) +{ + if (dev->hw_learning_and_tx_capable) { + ene_tx_set_carrier(dev); + ene_tx_set_transmitters(dev); + } + + ene_rx_setup(dev); +} + /* outside interface: called on first open*/ static int ene_open(void *data) { @@ -826,7 +864,6 @@ static void ene_close(void *data) static int ene_set_tx_mask(void *data, u32 tx_mask) { struct ene_device *dev = (struct ene_device *)data; - unsigned long flags; dbg("TX: attempt to set transmitter mask %02x", tx_mask); /* invalid txmask */ @@ -836,9 +873,8 @@ static int ene_set_tx_mask(void *data, u32 tx_mask) return 2; } - spin_lock_irqsave(&dev->hw_lock, flags); dev->transmitter_mask = tx_mask; - spin_unlock_irqrestore(&dev->hw_lock, flags); + ene_tx_set_transmitters(dev); return 0; } @@ -846,7 +882,6 @@ static int ene_set_tx_mask(void *data, u32 tx_mask) static int ene_set_tx_carrier(void *data, u32 carrier) { struct ene_device *dev = (struct ene_device *)data; - unsigned long flags; u32 period = 2000000 / carrier; dbg("TX: attempt to set tx carrier to %d kHz", carrier); @@ -855,16 +890,12 @@ static int ene_set_tx_carrier(void *data, u32 carrier) period < ENE_CIRMOD_PRD_MIN)) { dbg("TX: out of range %d-%d kHz carrier", - 2000 / ENE_CIRMOD_PRD_MIN, - 2000 / ENE_CIRMOD_PRD_MAX); - + 2000 / ENE_CIRMOD_PRD_MIN, 2000 / ENE_CIRMOD_PRD_MAX); return -1; } - dbg("TX: set carrier to %d kHz", carrier); - spin_lock_irqsave(&dev->hw_lock, flags); dev->tx_period = period; - spin_unlock_irqrestore(&dev->hw_lock, flags); + ene_tx_set_carrier(dev); return 0; } @@ -872,15 +903,9 @@ static int ene_set_tx_carrier(void *data, u32 carrier) static int ene_set_tx_duty_cycle(void *data, u32 duty_cycle) { struct ene_device *dev = (struct ene_device *)data; - unsigned long flags; - dbg("TX: setting duty cycle to %d%%", duty_cycle); - - BUG_ON(!duty_cycle || duty_cycle >= 100); - - spin_lock_irqsave(&dev->hw_lock, flags); dev->tx_duty_cycle = duty_cycle; - spin_unlock_irqrestore(&dev->hw_lock, flags); + ene_tx_set_carrier(dev); return 0; } @@ -889,11 +914,11 @@ static int ene_set_learning_mode(void *data, int enable) { struct ene_device *dev = (struct ene_device *)data; unsigned long flags; - if (enable == dev->learning_enabled) + if (enable == dev->learning_mode_enabled) return 0; spin_lock_irqsave(&dev->hw_lock, flags); - dev->learning_enabled = enable; + dev->learning_mode_enabled = enable; ene_rx_disable(dev); ene_rx_setup(dev); ene_rx_enable(dev); @@ -919,16 +944,12 @@ static int ene_set_carrier_report(void *data, int enable) } /* outside interface: enable or disable idle mode */ -static void ene_rx_set_idle(void *data, bool idle) +static void ene_set_idle(void *data, bool idle) { - struct ene_device *dev = (struct ene_device *)data; - - if (!idle) - return; - - dbg("RX: stopping the receiver"); - ene_clear_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN); - ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_RX_EN); + if (idle) { + ene_rx_reset((struct ene_device *)data); + dbg("RX: end of data"); + } } /* outside interface: transmit */ @@ -949,7 +970,7 @@ static int ene_transmit(void *data, int *buf, u32 n) spin_lock_irqsave(&dev->hw_lock, flags); - ene_tx_prepare(dev); + ene_tx_enable(dev); /* Transmit first two samples */ ene_tx_sample(dev); @@ -960,7 +981,7 @@ static int ene_transmit(void *data, int *buf, u32 n) if (wait_for_completion_timeout(&dev->tx_complete, 2 * HZ) == 0) { dbg("TX: timeout"); spin_lock_irqsave(&dev->hw_lock, flags); - ene_tx_complete(dev); + ene_tx_disable(dev); spin_unlock_irqrestore(&dev->hw_lock, flags); } else dbg("TX: done"); @@ -1031,14 +1052,14 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) } if (!dev->hw_learning_and_tx_capable) - learning_mode = false; + learning_mode_force = false; ir_props->driver_type = RC_DRIVER_IR_RAW; ir_props->allowed_protos = IR_TYPE_ALL; ir_props->priv = dev; ir_props->open = ene_open; ir_props->close = ene_close; - ir_props->s_idle = ene_rx_set_idle; + ir_props->s_idle = ene_set_idle; dev->props = ir_props; dev->idev = input_dev; @@ -1053,9 +1074,9 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) ir_props->s_carrier_report = ene_set_carrier_report; } - ene_setup_hw_buffer(dev); - ene_setup_settings(dev); - ene_rx_setup(dev); + ene_rx_setup_hw_buffer(dev); + ene_setup_default_settings(dev); + ene_setup_hw_settings(dev); device_set_wakeup_capable(&pnp_dev->dev, true); device_set_wakeup_enable(&pnp_dev->dev, true); @@ -1092,7 +1113,7 @@ static void ene_remove(struct pnp_dev *pnp_dev) spin_lock_irqsave(&dev->hw_lock, flags); ene_rx_disable(dev); - ene_restore_extra_buffer(dev); + ene_rx_restore_hw_buffer(dev); spin_unlock_irqrestore(&dev->hw_lock, flags); free_irq(dev->irq, dev); @@ -1123,10 +1144,11 @@ static int ene_suspend(struct pnp_dev *pnp_dev, pm_message_t state) static int ene_resume(struct pnp_dev *pnp_dev) { struct ene_device *dev = pnp_get_drvdata(pnp_dev); - if (dev->rx_enabled) { - ene_rx_setup(dev); + ene_setup_hw_settings(dev); + + if (dev->rx_enabled) ene_rx_enable(dev); - } + ene_enable_wake(dev, false); return 0; } @@ -1173,8 +1195,8 @@ static void ene_exit(void) module_param(sample_period, int, S_IRUGO); MODULE_PARM_DESC(sample_period, "Hardware sample period (50 us default)"); -module_param(learning_mode, bool, S_IRUGO); -MODULE_PARM_DESC(learning_mode, "Enable learning mode by default"); +module_param(learning_mode_force, bool, S_IRUGO); +MODULE_PARM_DESC(learning_mode_force, "Enable learning mode by default"); module_param(debug, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug level"); diff --git a/drivers/media/IR/ene_ir.h b/drivers/media/IR/ene_ir.h index 39c707b..f587066 100644 --- a/drivers/media/IR/ene_ir.h +++ b/drivers/media/IR/ene_ir.h @@ -215,7 +215,7 @@ struct ene_device { /* HW features */ int hw_revision; /* hardware revision */ - bool hw_use_gpio_0a; /* gpio40 is demodulated input*/ + bool hw_use_gpio_0a; /* gpio0a is demodulated input*/ bool hw_extra_buffer; /* hardware has 'extra buffer' */ bool hw_fan_input; /* fan input is IR data source */ bool hw_learning_and_tx_capable; /* learning & tx capable */ @@ -252,11 +252,11 @@ struct ene_device { int transmitter_mask; /* RX settings */ - bool learning_enabled; /* learning input enabled */ + bool learning_mode_enabled; /* learning input enabled */ bool carrier_detect_enabled; /* carrier detect enabled */ int rx_period_adjust; bool rx_enabled; }; static int ene_irq_status(struct ene_device *dev); -static void ene_read_hw_pointer(struct ene_device *dev); +static void ene_rx_read_hw_pointer(struct ene_device *dev);