/*
- * driver for ENE KB3926 B/C/D CIR (pnp id: ENE0XXX)
+ * driver for ENE KB3926 B/C/D/E/F CIR (pnp id: ENE0XXX)
*
* Copyright (C) 2010 Maxim Levitsky <maximlevitsky@gmail.com>
*
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
+ *
+ * Special thanks to:
+ * Sami R. <maesesami@gmail.com> for lot of help in debugging and therefore
+ * bringing to life support for transmission & learning mode.
+ *
+ * Charlie Andrews <charliethepilot@googlemail.com> for lots of help in
+ * bringing up the support of new firmware buffer that is popular
+ * on latest notebooks
+ *
+ * ENE for partial device documentation
+ *
*/
#include <linux/kernel.h>
#include <media/ir-common.h>
#include "ene_ir.h"
-
-static int sample_period = -1;
-static int enable_idle = 1;
-static int input = 1;
+static int sample_period;
+static bool learning_mode_force;
static int debug;
-static int txsim;
+static bool txsim;
-static int ene_irq_status(struct ene_device *dev);
+static void ene_set_reg_addr(struct ene_device *dev, u16 reg)
+{
+ outb(reg >> 8, dev->hw_io + ENE_ADDR_HI);
+ outb(reg & 0xFF, dev->hw_io + ENE_ADDR_LO);
+}
/* read a hardware register */
-static u8 ene_hw_read_reg(struct ene_device *dev, u16 reg)
+static u8 ene_read_reg(struct ene_device *dev, u16 reg)
{
u8 retval;
- outb(reg >> 8, dev->hw_io + ENE_ADDR_HI);
- outb(reg & 0xFF, dev->hw_io + ENE_ADDR_LO);
+ ene_set_reg_addr(dev, reg);
retval = inb(dev->hw_io + ENE_IO);
-
- ene_dbg_verbose("reg %04x == %02x", reg, retval);
+ dbg_regs("reg %04x == %02x", reg, retval);
return retval;
}
/* write a hardware register */
-static void ene_hw_write_reg(struct ene_device *dev, u16 reg, u8 value)
+static void ene_write_reg(struct ene_device *dev, u16 reg, u8 value)
{
- outb(reg >> 8, dev->hw_io + ENE_ADDR_HI);
- outb(reg & 0xFF, dev->hw_io + ENE_ADDR_LO);
+ dbg_regs("reg %04x <- %02x", reg, value);
+ ene_set_reg_addr(dev, reg);
outb(value, dev->hw_io + ENE_IO);
-
- ene_dbg_verbose("reg %04x <- %02x", reg, value);
}
-/* change specific bits in hardware register */
-static void ene_hw_write_reg_mask(struct ene_device *dev,
- u16 reg, u8 value, u8 mask)
+/* Set bits in hardware register */
+static void ene_set_reg_mask(struct ene_device *dev, u16 reg, u8 mask)
{
- u8 regvalue;
-
- outb(reg >> 8, dev->hw_io + ENE_ADDR_HI);
- outb(reg & 0xFF, dev->hw_io + ENE_ADDR_LO);
+ dbg_regs("reg %04x |= %02x", reg, mask);
+ ene_set_reg_addr(dev, reg);
+ outb(inb(dev->hw_io + ENE_IO) | mask, dev->hw_io + ENE_IO);
+}
- regvalue = inb(dev->hw_io + ENE_IO) & ~mask;
- regvalue |= (value & mask);
- outb(regvalue, dev->hw_io + ENE_IO);
+/* Clear bits in hardware register */
+static void ene_clear_reg_mask(struct ene_device *dev, u16 reg, u8 mask)
+{
+ dbg_regs("reg %04x &= ~%02x ", reg, mask);
+ ene_set_reg_addr(dev, reg);
+ outb(inb(dev->hw_io + ENE_IO) & ~mask, dev->hw_io + ENE_IO);
+}
- ene_dbg_verbose("reg %04x <- %02x (mask=%02x)", reg, value, mask);
+/* A helper to set/clear a bit in register according to boolean variable */
+static void ene_set_clear_reg_mask(struct ene_device *dev, u16 reg, u8 mask,
+ bool set)
+{
+ if (set)
+ ene_set_reg_mask(dev, reg, mask);
+ else
+ ene_clear_reg_mask(dev, reg, mask);
}
/* detect hardware features */
{
u8 chip_major, chip_minor;
u8 hw_revision, old_ver;
- u8 tmp;
- u8 fw_capabilities;
- int pll_freq;
+ u8 fw_reg2, fw_reg1;
- tmp = ene_hw_read_reg(dev, ENE_HW_UNK);
- ene_hw_write_reg(dev, ENE_HW_UNK, tmp & ~ENE_HW_UNK_CLR);
+ ene_clear_reg_mask(dev, ENE_ECSTS, ENE_ECSTS_RSRVD);
+ chip_major = ene_read_reg(dev, ENE_ECVER_MAJOR);
+ chip_minor = ene_read_reg(dev, ENE_ECVER_MINOR);
+ ene_set_reg_mask(dev, ENE_ECSTS, ENE_ECSTS_RSRVD);
- chip_major = ene_hw_read_reg(dev, ENE_HW_VER_MAJOR);
- chip_minor = ene_hw_read_reg(dev, ENE_HW_VER_MINOR);
+ hw_revision = ene_read_reg(dev, ENE_ECHV);
+ old_ver = ene_read_reg(dev, ENE_HW_VER_OLD);
- ene_hw_write_reg(dev, ENE_HW_UNK, tmp);
- hw_revision = ene_hw_read_reg(dev, ENE_HW_VERSION);
- old_ver = ene_hw_read_reg(dev, ENE_HW_VER_OLD);
+ dev->pll_freq = (ene_read_reg(dev, ENE_PLLFRH) << 4) +
+ (ene_read_reg(dev, ENE_PLLFRL) >> 4);
- pll_freq = (ene_hw_read_reg(dev, ENE_PLLFRH) << 4) +
- (ene_hw_read_reg(dev, ENE_PLLFRL) >> 4);
-
- if (pll_freq != 1000)
- dev->rx_period_adjust = 4;
- else
- dev->rx_period_adjust = 2;
-
-
- ene_printk(KERN_NOTICE, "PLL freq = %d\n", pll_freq);
+ if (sample_period != ENE_DEFAULT_SAMPLE_PERIOD)
+ dev->rx_period_adjust =
+ dev->pll_freq == ENE_DEFAULT_PLL_FREQ ? 2 : 4;
if (hw_revision == 0xFF) {
-
- ene_printk(KERN_WARNING, "device seems to be disabled\n");
- ene_printk(KERN_WARNING,
- "send a mail to lirc-list@lists.sourceforge.net\n");
- ene_printk(KERN_WARNING, "please attach output of acpidump\n");
+ ene_warn("device seems to be disabled");
+ ene_warn("send a mail to lirc-list@lists.sourceforge.net");
+ ene_warn("please attach output of acpidump and dmidecode");
return -ENODEV;
}
+ ene_notice("chip is 0x%02x%02x - kbver = 0x%02x, rev = 0x%02x",
+ chip_major, chip_minor, old_ver, hw_revision);
+
+ ene_notice("PLL freq = %d", dev->pll_freq);
+
if (chip_major == 0x33) {
- ene_printk(KERN_WARNING, "chips 0x33xx aren't supported\n");
+ ene_warn("chips 0x33xx aren't supported");
return -ENODEV;
}
if (chip_major == 0x39 && chip_minor == 0x26 && hw_revision == 0xC0) {
dev->hw_revision = ENE_HW_C;
+ ene_notice("KB3926C detected");
} else if (old_ver == 0x24 && hw_revision == 0xC0) {
dev->hw_revision = ENE_HW_B;
- ene_printk(KERN_NOTICE, "KB3926B detected\n");
+ ene_notice("KB3926B detected");
} else {
dev->hw_revision = ENE_HW_D;
- ene_printk(KERN_WARNING,
- "unknown ENE chip detected, assuming KB3926D\n");
- ene_printk(KERN_WARNING,
- "driver support might be not complete");
-
+ ene_notice("KB3926D or higher detected");
}
- ene_printk(KERN_DEBUG,
- "chip is 0x%02x%02x - kbver = 0x%02x, rev = 0x%02x\n",
- chip_major, chip_minor, old_ver, hw_revision);
-
/* detect features hardware supports */
if (dev->hw_revision < ENE_HW_C)
return 0;
- fw_capabilities = ene_hw_read_reg(dev, ENE_FW2);
- ene_dbg("Firmware capabilities: %02x", fw_capabilities);
+ fw_reg1 = ene_read_reg(dev, ENE_FW1);
+ fw_reg2 = ene_read_reg(dev, ENE_FW2);
+
+ ene_notice("Firmware regs: %02x %02x", fw_reg1, fw_reg2);
- dev->hw_gpio40_learning = fw_capabilities & ENE_FW2_GP40_AS_LEARN;
- dev->hw_learning_and_tx_capable = fw_capabilities & ENE_FW2_LEARNING;
+ dev->hw_use_gpio_0a = !!(fw_reg2 & ENE_FW2_GP0A);
+ dev->hw_learning_and_tx_capable = !!(fw_reg2 & ENE_FW2_LEARNING);
+ dev->hw_extra_buffer = !!(fw_reg1 & ENE_FW1_HAS_EXTRA_BUF);
- dev->hw_fan_as_normal_input = dev->hw_learning_and_tx_capable &&
- (fw_capabilities & ENE_FW2_FAN_AS_NRML_IN);
+ if (dev->hw_learning_and_tx_capable)
+ dev->hw_fan_input = !!(fw_reg2 & ENE_FW2_FAN_INPUT);
- ene_printk(KERN_NOTICE, "hardware features:\n");
- ene_printk(KERN_NOTICE,
- "learning and transmit %s, gpio40_learn %s, fan_in %s\n",
- dev->hw_learning_and_tx_capable ? "on" : "off",
- dev->hw_gpio40_learning ? "on" : "off",
- dev->hw_fan_as_normal_input ? "on" : "off");
+ ene_notice("Hardware features:");
if (dev->hw_learning_and_tx_capable) {
- ene_printk(KERN_WARNING,
- "Device supports transmitting, but that support is\n");
- ene_printk(KERN_WARNING,
- "lightly tested. Please test it and mail\n");
- ene_printk(KERN_WARNING,
- "lirc-list@lists.sourceforge.net\n");
+ ene_notice("* Supports transmitting & learning mode");
+ ene_notice(" This feature is rare and therefore,");
+ ene_notice(" you are welcome to test it,");
+ ene_notice(" and/or contact the author via:");
+ ene_notice(" lirc-list@lists.sourceforge.net");
+ ene_notice(" or maximlevitsky@gmail.com");
+
+ ene_notice("* Uses GPIO %s for IR raw input",
+ dev->hw_use_gpio_0a ? "40" : "0A");
+
+ if (dev->hw_fan_input)
+ ene_notice("* Uses unused fan feedback input as source"
+ " of demodulated IR data");
}
+
+ if (!dev->hw_fan_input)
+ ene_notice("* Uses GPIO %s for IR demodulated input",
+ dev->hw_use_gpio_0a ? "0A" : "40");
+
+ if (dev->hw_extra_buffer)
+ ene_notice("* Uses new style input buffer");
return 0;
}
-/* this enables/disables IR input via gpio40*/
-static void ene_enable_gpio40_receive(struct ene_device *dev, int enable)
+/* Read properities of hw sample buffer */
+static void ene_rx_setup_hw_buffer(struct ene_device *dev)
{
- ene_hw_write_reg_mask(dev, ENE_CIR_CONF2, enable ?
- 0 : ENE_CIR_CONF2_GPIO40DIS,
- ENE_CIR_CONF2_GPIO40DIS);
+ 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);
}
-/* this enables/disables IR via standard input */
-static void ene_enable_normal_receive(struct ene_device *dev, int enable)
+
+/* Restore the pointers to extra buffers - to make module reload work*/
+static void ene_rx_restore_hw_buffer(struct ene_device *dev)
{
- ene_hw_write_reg(dev, ENE_CIR_CONF1, enable ? ENE_CIR_CONF1_RX_ON : 0);
+ 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);
}
-/* this enables/disables IR input via unused fan tachtometer input */
-static void ene_enable_fan_receive(struct ene_device *dev, int enable)
+/* Read hardware write pointer */
+static void ene_rx_read_hw_pointer(struct ene_device *dev)
{
- if (!enable)
- ene_hw_write_reg(dev, ENE_FAN_AS_IN1, 0);
- else {
- ene_hw_write_reg(dev, ENE_FAN_AS_IN1, ENE_FAN_AS_IN1_EN);
- ene_hw_write_reg(dev, ENE_FAN_AS_IN2, ENE_FAN_AS_IN2_EN);
- }
- dev->rx_fan_input_inuse = enable;
+ 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 */
-static int ene_rx_sense_carrier(struct ene_device *dev)
+void ene_rx_sense_carrier(struct ene_device *dev)
{
- int period = ene_hw_read_reg(dev, ENE_RX_CARRIER);
- int carrier;
- ene_dbg("RX: hardware carrier period = %02x", period);
+ DEFINE_IR_RAW_EVENT(ev);
- if (!(period & ENE_RX_CARRIER_VALID))
- return 0;
+ int carrier, duty_cycle;
+ int period = ene_read_reg(dev, ENE_CIRCAR_PRD);
+ int hperiod = ene_read_reg(dev, ENE_CIRCAR_HPRD);
+
+ if (!(period & ENE_CIRCAR_PRD_VALID))
+ return;
- period &= ~ENE_RX_CARRIER_VALID;
+ period &= ~ENE_CIRCAR_PRD_VALID;
if (!period)
- return 0;
+ return;
+
+ dbg("RX: hardware carrier period = %02x", period);
+ dbg("RX: hardware carrier pulse period = %02x", hperiod);
carrier = 2000000 / period;
- ene_dbg("RX: sensed carrier = %d Hz", carrier);
- return carrier;
+ duty_cycle = (hperiod * 100) / period;
+ dbg("RX: sensed carrier = %d Hz, duty cycle %d%%",
+ carrier, duty_cycle);
+ if (dev->carrier_detect_enabled) {
+ ev.carrier_report = true;
+ ev.carrier = carrier;
+ ev.duty_cycle = duty_cycle;
+ ir_raw_event_store(dev->idev, &ev);
+ }
}
-/* determine which input to use*/
-static void ene_rx_set_inputs(struct ene_device *dev)
+/* this enables/disables the CIR RX engine */
+static void ene_rx_enable_cir_engine(struct ene_device *dev, bool enable)
{
- int learning_mode = dev->learning_enabled;
-
- ene_dbg("RX: setup receiver, learning mode = %d", learning_mode);
+ ene_set_clear_reg_mask(dev, ENE_CIRCFG,
+ ENE_CIRCFG_RX_EN | ENE_CIRCFG_RX_IRQ, enable);
+}
- ene_enable_normal_receive(dev, 1);
+/* this selects input for CIR engine. Ether GPIO 0A or GPIO40*/
+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);
+}
- /* old hardware doesn't support learning mode for sure */
- if (dev->hw_revision <= ENE_HW_B)
+/*
+ * this enables alternative input via fan tachometer sensor and bypasses
+ * the hw CIR engine
+ */
+static void ene_rx_enable_fan_input(struct ene_device *dev, bool enable)
+{
+ if (!dev->hw_fan_input)
return;
- /* receiver not learning capable, still set gpio40 correctly */
- if (!dev->hw_learning_and_tx_capable) {
- ene_enable_gpio40_receive(dev, !dev->hw_gpio40_learning);
- return;
+ if (!enable)
+ ene_write_reg(dev, ENE_FAN_AS_IN1, 0);
+ else {
+ 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);
}
+}
+
+/* setup the receiver for RX*/
+static void ene_rx_setup(struct ene_device *dev)
+{
+ 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);
+
+ /* set sample period*/
+ if (sample_period == ENE_DEFAULT_SAMPLE_PERIOD)
+ sample_period_adjust =
+ dev->pll_freq == ENE_DEFAULT_PLL_FREQ ? 1 : 2;
+
+ ene_write_reg(dev, ENE_CIRRLC_CFG,
+ (sample_period + sample_period_adjust) |
+ ENE_CIRRLC_CFG_OVERFLOW);
+ /* revB doesn't support inputs */
+ if (dev->hw_revision < ENE_HW_C)
+ goto select_timeout;
- /* enable learning mode */
if (learning_mode) {
- ene_enable_gpio40_receive(dev, dev->hw_gpio40_learning);
- /* fan input is not used for learning */
- if (dev->hw_fan_as_normal_input)
- ene_enable_fan_receive(dev, 0);
+ WARN_ON(!dev->hw_learning_and_tx_capable);
- /* disable learning mode */
- } else {
- if (dev->hw_fan_as_normal_input) {
- ene_enable_fan_receive(dev, 1);
- ene_enable_normal_receive(dev, 0);
- } else
- ene_enable_gpio40_receive(dev,
- !dev->hw_gpio40_learning);
- }
+ /* Enable the opposite of the normal input
+ That means that if GPIO40 is normally used, use GPIO0A
+ and vice versa.
+ This input will carry non demodulated
+ signal, and we will tell the hw to demodulate it itself */
+ ene_rx_select_input(dev, !dev->hw_use_gpio_0a);
+ dev->rx_fan_input_inuse = false;
- /* set few additional settings for this mode */
- ene_hw_write_reg_mask(dev, ENE_CIR_CONF1, learning_mode ?
- ENE_CIR_CONF1_LEARN1 : 0, ENE_CIR_CONF1_LEARN1);
+ /* Enable carrier demodulation */
+ ene_set_reg_mask(dev, ENE_CIRCFG, ENE_CIRCFG_CARR_DEMOD);
- ene_hw_write_reg_mask(dev, ENE_CIR_CONF2, learning_mode ?
- ENE_CIR_CONF2_LEARN2 : 0, ENE_CIR_CONF2_LEARN2);
+ /* Enable carrier detection */
+ ene_write_reg(dev, ENE_CIRCAR_PULS, 0x63);
+ ene_set_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_CARR_DETECT,
+ dev->carrier_detect_enabled || debug);
+ } else {
+ if (dev->hw_fan_input)
+ dev->rx_fan_input_inuse = true;
+ else
+ 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);
+ ene_clear_reg_mask(dev, ENE_CIRCFG2, ENE_CIRCFG2_CARR_DETECT);
+ }
+select_timeout:
if (dev->rx_fan_input_inuse) {
- dev->props->rx_resolution = ENE_SAMPLE_PERIOD_FAN * 1000;
+ dev->props->rx_resolution = MS_TO_NS(ENE_FW_SAMPLE_PERIOD_FAN);
- dev->props->timeout =
- ENE_FAN_VALUE_MASK * ENE_SAMPLE_PERIOD_FAN * 1000;
+ /* Fan input doesn't support timeouts, it just ends the
+ input with a maximum sample */
+ dev->props->min_timeout = dev->props->max_timeout =
+ MS_TO_NS(ENE_FW_SMPL_BUF_FAN_MSK *
+ ENE_FW_SAMPLE_PERIOD_FAN);
} else {
- dev->props->rx_resolution = sample_period * 1000;
- dev->props->timeout = ENE_MAXGAP * 1000;
+ dev->props->rx_resolution = MS_TO_NS(sample_period);
+
+ /* Theoreticly timeout is unlimited, but we cap it
+ * because it was seen that on one device, it
+ * would stop sending spaces after around 250 msec.
+ * Besides, this is close to 2^32 anyway and timeout is u32.
+ */
+ dev->props->min_timeout = MS_TO_NS(127 * sample_period);
+ dev->props->max_timeout = MS_TO_NS(200000);
}
+
+ if (dev->hw_learning_and_tx_capable)
+ dev->props->tx_resolution = MS_TO_NS(sample_period);
+
+ if (dev->props->timeout > dev->props->max_timeout)
+ dev->props->timeout = dev->props->max_timeout;
+ if (dev->props->timeout < dev->props->min_timeout)
+ dev->props->timeout = dev->props->min_timeout;
}
/* Enable the device for receive */
{
u8 reg_value;
+ /* Enable system interrupt */
if (dev->hw_revision < ENE_HW_C) {
- ene_hw_write_reg(dev, ENEB_IRQ, dev->irq << 1);
- ene_hw_write_reg(dev, ENEB_IRQ_UNK1, 0x01);
+ ene_write_reg(dev, ENEB_IRQ, dev->irq << 1);
+ ene_write_reg(dev, ENEB_IRQ_UNK1, 0x01);
} else {
- reg_value = ene_hw_read_reg(dev, ENEC_IRQ) & 0xF0;
- reg_value |= ENEC_IRQ_UNK_EN;
- reg_value &= ~ENEC_IRQ_STATUS;
- reg_value |= (dev->irq & ENEC_IRQ_MASK);
- ene_hw_write_reg(dev, ENEC_IRQ, reg_value);
- ene_hw_write_reg(dev, ENE_TX_UNK1, 0x63);
+ reg_value = ene_read_reg(dev, ENE_IRQ) & 0xF0;
+ reg_value |= ENE_IRQ_UNK_EN;
+ reg_value &= ~ENE_IRQ_STATUS;
+ reg_value |= (dev->irq & ENE_IRQ_MASK);
+ ene_write_reg(dev, ENE_IRQ, reg_value);
}
- ene_hw_write_reg(dev, ENE_CIR_CONF2, 0x00);
- ene_rx_set_inputs(dev);
-
- /* set sampling period */
- ene_hw_write_reg(dev, ENE_CIR_SAMPLE_PERIOD, sample_period);
+ /* Enable inputs */
+ 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);
/* enable firmware bits */
- ene_hw_write_reg_mask(dev, ENE_FW1,
- ENE_FW1_ENABLE | ENE_FW1_IRQ,
- ENE_FW1_ENABLE | ENE_FW1_IRQ);
+ ene_set_reg_mask(dev, ENE_FW1, ENE_FW1_ENABLE | ENE_FW1_IRQ);
/* enter idle mode */
- ir_raw_event_set_idle(dev->idev, 1);
- ir_raw_event_reset(dev->idev);
-
+ ir_raw_event_set_idle(dev->idev, true);
+ dev->rx_enabled = true;
}
/* Disable the device receiver */
static void ene_rx_disable(struct ene_device *dev)
{
/* disable inputs */
- ene_enable_normal_receive(dev, 0);
-
- if (dev->hw_fan_as_normal_input)
- ene_enable_fan_receive(dev, 0);
+ ene_rx_enable_cir_engine(dev, false);
+ ene_rx_enable_fan_input(dev, false);
/* disable hardware IRQ and firmware flag */
- ene_hw_write_reg_mask(dev, ENE_FW1, 0, ENE_FW1_ENABLE | ENE_FW1_IRQ);
+ ene_clear_reg_mask(dev, ENE_FW1, ENE_FW1_ENABLE | ENE_FW1_IRQ);
- ir_raw_event_set_idle(dev->idev, 1);
- ir_raw_event_reset(dev->idev);
+ ir_raw_event_set_idle(dev->idev, true);
+ 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);
+}
-/* prepare transmission */
-static void ene_tx_prepare(struct ene_device *dev)
+/* Set up the TX carrier frequency and duty cycle */
+static void ene_tx_set_carrier(struct ene_device *dev)
{
- u8 conf1;
+ u8 tx_puls_width;
+ unsigned long flags;
- conf1 = ene_hw_read_reg(dev, ENE_CIR_CONF1);
- dev->saved_conf1 = conf1;
+ spin_lock_irqsave(&dev->hw_lock, flags);
- if (dev->hw_revision == ENE_HW_C)
- conf1 &= ~ENE_CIR_CONF1_TX_CLEAR;
+ ene_set_clear_reg_mask(dev, ENE_CIRCFG,
+ ENE_CIRCFG_TX_CARR, dev->tx_period > 0);
- /* Enable TX engine */
- conf1 |= ENE_CIR_CONF1_TX_ON;
+ if (!dev->tx_period)
+ goto unlock;
- /* Set carrier */
- if (dev->tx_period) {
+ BUG_ON(dev->tx_duty_cycle >= 100 || dev->tx_duty_cycle <= 0);
- /* NOTE: duty cycle handling is just a guess, it might
- not be aviable. Default values were tested */
- int tx_period_in500ns = dev->tx_period * 2;
+ tx_puls_width = dev->tx_period / (100 / dev->tx_duty_cycle);
- int tx_pulse_width_in_500ns =
- tx_period_in500ns / (100 / dev->tx_duty_cycle);
+ if (!tx_puls_width)
+ tx_puls_width = 1;
- if (!tx_pulse_width_in_500ns)
- tx_pulse_width_in_500ns = 1;
+ dbg("TX: pulse distance = %d * 500 ns", dev->tx_period);
+ dbg("TX: pulse width = %d * 500 ns", tx_puls_width);
- ene_dbg("TX: pulse distance = %d * 500 ns", tx_period_in500ns);
- ene_dbg("TX: pulse width = %d * 500 ns",
- tx_pulse_width_in_500ns);
+ 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);
+}
- ene_hw_write_reg(dev, ENE_TX_PERIOD, ENE_TX_PERIOD_UNKBIT |
- tx_period_in500ns);
+/* Enable/disable transmitters */
+static void ene_tx_set_transmitters(struct ene_device *dev)
+{
+ unsigned long flags;
- ene_hw_write_reg(dev, ENE_TX_PERIOD_PULSE,
- tx_pulse_width_in_500ns);
+ 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);
+}
- conf1 |= ENE_CIR_CONF1_TX_CARR;
- } else
- conf1 &= ~ENE_CIR_CONF1_TX_CARR;
+/* prepare transmission */
+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);
+
+ dev->saved_conf1 = conf1;
+
+ /* Show information about currently connected transmitter jacks */
+ if (fwreg2 & ENE_FW2_EMMITER1_CONN)
+ dbg("TX: Transmitter #1 is connected");
+
+ if (fwreg2 & ENE_FW2_EMMITER2_CONN)
+ dbg("TX: Transmitter #2 is connected");
- ene_hw_write_reg(dev, ENE_CIR_CONF1, conf1);
+ if (!(fwreg2 & (ENE_FW2_EMMITER1_CONN | ENE_FW2_EMMITER2_CONN)))
+ ene_warn("TX: transmitter cable isn't connected!");
+ /* disable receive on revc */
+ if (dev->hw_revision == ENE_HW_C)
+ conf1 &= ~ENE_CIRCFG_RX_EN;
+
+ /* Enable TX engine */
+ conf1 |= ENE_CIRCFG_TX_EN | ENE_CIRCFG_TX_IRQ;
+ ene_write_reg(dev, ENE_CIRCFG, conf1);
}
/* end transmission */
-static void ene_tx_complete(struct ene_device *dev)
+static void ene_tx_disable(struct ene_device *dev)
{
- ene_hw_write_reg(dev, ENE_CIR_CONF1, dev->saved_conf1);
+ ene_write_reg(dev, ENE_CIRCFG, dev->saved_conf1);
dev->tx_buffer = NULL;
}
-/* set transmit mask */
-static void ene_tx_hw_set_transmiter_mask(struct ene_device *dev)
-{
- u8 txport1 = ene_hw_read_reg(dev, ENE_TX_PORT1) & ~ENE_TX_PORT1_EN;
- u8 txport2 = ene_hw_read_reg(dev, ENE_TX_PORT2) & ~ENE_TX_PORT2_EN;
-
- if (dev->transmitter_mask & 0x01)
- txport1 |= ENE_TX_PORT1_EN;
-
- if (dev->transmitter_mask & 0x02)
- txport2 |= ENE_TX_PORT2_EN;
-
- ene_hw_write_reg(dev, ENE_TX_PORT1, txport1);
- ene_hw_write_reg(dev, ENE_TX_PORT2, txport2);
-}
/* TX one sample - must be called with dev->hw_lock*/
static void ene_tx_sample(struct ene_device *dev)
{
u8 raw_tx;
u32 sample;
+ bool pulse = dev->tx_sample_pulse;
if (!dev->tx_buffer) {
- ene_dbg("TX: attempt to transmit NULL buffer");
+ ene_warn("TX: BUG: attempt to transmit NULL buffer");
return;
}
/* Grab next TX sample */
if (!dev->tx_sample) {
-again:
- if (dev->tx_pos == dev->tx_len + 1) {
+
+ if (dev->tx_pos == dev->tx_len) {
if (!dev->tx_done) {
- ene_dbg("TX: no more data to send");
- dev->tx_done = 1;
+ dbg("TX: no more data to send");
+ dev->tx_done = true;
goto exit;
} else {
- ene_dbg("TX: last sample sent by hardware");
- ene_tx_complete(dev);
+ dbg("TX: last sample sent by hardware");
+ ene_tx_disable(dev);
complete(&dev->tx_complete);
return;
}
sample = dev->tx_buffer[dev->tx_pos++];
dev->tx_sample_pulse = !dev->tx_sample_pulse;
- ene_dbg("TX: sample %8d (%s)", sample, dev->tx_sample_pulse ?
- "pulse" : "space");
+ dev->tx_sample = DIV_ROUND_CLOSEST(sample, sample_period);
- dev->tx_sample = DIV_ROUND_CLOSEST(sample, ENE_TX_SMPL_PERIOD);
-
- /* guard against too short samples */
if (!dev->tx_sample)
- goto again;
+ dev->tx_sample = 1;
}
- raw_tx = min(dev->tx_sample , (unsigned int)ENE_TX_SMLP_MASK);
+ raw_tx = min(dev->tx_sample , (unsigned int)ENE_CIRRLC_OUT_MASK);
dev->tx_sample -= raw_tx;
- if (dev->tx_sample_pulse)
- raw_tx |= ENE_TX_PULSE_MASK;
+ dbg("TX: sample %8d (%s)", raw_tx * sample_period,
+ pulse ? "pulse" : "space");
+ if (pulse)
+ raw_tx |= ENE_CIRRLC_OUT_PULSE;
+
+ ene_write_reg(dev,
+ dev->tx_reg ? ENE_CIRRLC_OUT1 : ENE_CIRRLC_OUT0, raw_tx);
- ene_hw_write_reg(dev, ENE_TX_INPUT1 + dev->tx_reg, raw_tx);
dev->tx_reg = !dev->tx_reg;
exit:
/* simulate TX done interrupt */
{
u8 irq_status;
u8 fw_flags1, fw_flags2;
- int cur_rx_pointer;
int retval = 0;
- fw_flags2 = ene_hw_read_reg(dev, ENE_FW2);
- cur_rx_pointer = !!(fw_flags2 & ENE_FW2_BUF_HIGH);
+ fw_flags2 = ene_read_reg(dev, ENE_FW2);
if (dev->hw_revision < ENE_HW_C) {
- irq_status = ene_hw_read_reg(dev, ENEB_IRQ_STATUS);
+ irq_status = ene_read_reg(dev, ENEB_IRQ_STATUS);
if (!(irq_status & ENEB_IRQ_STATUS_IR))
return 0;
- ene_hw_write_reg(dev, ENEB_IRQ_STATUS,
- irq_status & ~ENEB_IRQ_STATUS_IR);
- dev->rx_pointer = cur_rx_pointer;
+ ene_clear_reg_mask(dev, ENEB_IRQ_STATUS, ENEB_IRQ_STATUS_IR);
return ENE_IRQ_RX;
}
- irq_status = ene_hw_read_reg(dev, ENEC_IRQ);
-
- if (!(irq_status & ENEC_IRQ_STATUS))
+ irq_status = ene_read_reg(dev, ENE_IRQ);
+ if (!(irq_status & ENE_IRQ_STATUS))
return 0;
/* original driver does that twice - a workaround ? */
- ene_hw_write_reg(dev, ENEC_IRQ, irq_status & ~ENEC_IRQ_STATUS);
- ene_hw_write_reg(dev, ENEC_IRQ, irq_status & ~ENEC_IRQ_STATUS);
+ ene_write_reg(dev, ENE_IRQ, irq_status & ~ENE_IRQ_STATUS);
+ ene_write_reg(dev, ENE_IRQ, irq_status & ~ENE_IRQ_STATUS);
- /* clear unknown flag in F8F9 */
- if (fw_flags2 & ENE_FW2_IRQ_CLR)
- ene_hw_write_reg(dev, ENE_FW2, fw_flags2 & ~ENE_FW2_IRQ_CLR);
+ /* check RX interrupt */
+ if (fw_flags2 & ENE_FW2_RXIRQ) {
+ retval |= ENE_IRQ_RX;
+ ene_write_reg(dev, ENE_FW2, fw_flags2 & ~ENE_FW2_RXIRQ);
+ }
- /* check if this is a TX interrupt */
- fw_flags1 = ene_hw_read_reg(dev, ENE_FW1);
+ /* check TX interrupt */
+ fw_flags1 = ene_read_reg(dev, ENE_FW1);
if (fw_flags1 & ENE_FW1_TXIRQ) {
- ene_hw_write_reg(dev, ENE_FW1, fw_flags1 & ~ENE_FW1_TXIRQ);
+ ene_write_reg(dev, ENE_FW1, fw_flags1 & ~ENE_FW1_TXIRQ);
retval |= ENE_IRQ_TX;
}
- /* Check if this is RX interrupt */
- if (dev->rx_pointer != cur_rx_pointer) {
- retval |= ENE_IRQ_RX;
- dev->rx_pointer = cur_rx_pointer;
-
- } else if (!(retval & ENE_IRQ_TX)) {
- ene_dbg("RX: interrupt without change in RX pointer(%d)",
- dev->rx_pointer);
- retval |= ENE_IRQ_RX;
- }
-
- if ((retval & ENE_IRQ_RX) && (retval & ENE_IRQ_TX))
- ene_dbg("both RX and TX interrupt at same time");
-
return retval;
}
/* interrupt handler */
static irqreturn_t ene_isr(int irq, void *data)
{
- u16 hw_value;
- int i, hw_sample;
- int pulse;
- int irq_status;
+ u16 hw_value, reg;
+ int hw_sample, irq_status;
+ bool pulse;
unsigned long flags;
- int carrier = 0;
irqreturn_t retval = IRQ_NONE;
struct ene_device *dev = (struct ene_device *)data;
- struct ir_raw_event ev;
-
+ DEFINE_IR_RAW_EVENT(ev);
spin_lock_irqsave(&dev->hw_lock, flags);
+
+ dbg_verbose("ISR called");
+ ene_rx_read_hw_pointer(dev);
irq_status = ene_irq_status(dev);
if (!irq_status)
retval = IRQ_HANDLED;
if (irq_status & ENE_IRQ_TX) {
-
+ dbg_verbose("TX interrupt");
if (!dev->hw_learning_and_tx_capable) {
- ene_dbg("TX interrupt on unsupported device!");
+ dbg("TX interrupt on unsupported device!");
goto unlock;
}
ene_tx_sample(dev);
if (!(irq_status & ENE_IRQ_RX))
goto unlock;
+ dbg_verbose("RX interrupt");
- if (dev->carrier_detect_enabled || debug)
- carrier = ene_rx_sense_carrier(dev);
-#if 0
- /* TODO */
- if (dev->carrier_detect_enabled && carrier)
- ir_raw_event_report_frequency(dev->idev, carrier);
-#endif
+ if (dev->hw_learning_and_tx_capable)
+ ene_rx_sense_carrier(dev);
+
+ /* On hardware that don't support extra buffer we need to trust
+ the interrupt and not track the read pointer */
+ if (!dev->hw_extra_buffer)
+ dev->r_pointer = dev->w_pointer == 0 ? ENE_FW_PACKET_SIZE : 0;
+
+ while (1) {
+
+ reg = ene_rx_get_sample_reg(dev);
+
+ dbg_verbose("next sample to read at: %04x", reg);
+ if (!reg)
+ break;
- for (i = 0; i < ENE_SAMPLES_SIZE; i++) {
- hw_value = ene_hw_read_reg(dev,
- ENE_SAMPLE_BUFFER + dev->rx_pointer * 4 + i);
+ hw_value = ene_read_reg(dev, reg);
if (dev->rx_fan_input_inuse) {
+
+ int offset = ENE_FW_SMPL_BUF_FAN - ENE_FW_SAMPLE_BUFFER;
+
/* read high part of the sample */
- hw_value |= ene_hw_read_reg(dev,
- ENE_SAMPLE_BUFFER_FAN +
- dev->rx_pointer * 4 + i) << 8;
- pulse = hw_value & ENE_FAN_SMPL_PULS_MSK;
+ hw_value |= ene_read_reg(dev, reg + offset) << 8;
+ pulse = hw_value & ENE_FW_SMPL_BUF_FAN_PLS;
/* clear space bit, and other unused bits */
- hw_value &= ENE_FAN_VALUE_MASK;
- hw_sample = hw_value * ENE_SAMPLE_PERIOD_FAN;
+ hw_value &= ENE_FW_SMPL_BUF_FAN_MSK;
+ hw_sample = hw_value * ENE_FW_SAMPLE_PERIOD_FAN;
} else {
- pulse = !(hw_value & ENE_SAMPLE_SPC_MASK);
- hw_value &= ENE_SAMPLE_VALUE_MASK;
+ pulse = !(hw_value & ENE_FW_SAMPLE_SPACE);
+ hw_value &= ~ENE_FW_SAMPLE_SPACE;
hw_sample = hw_value * sample_period;
if (dev->rx_period_adjust) {
- hw_sample *= (100 - dev->rx_period_adjust);
- hw_sample /= 100;
+ hw_sample *= 100;
+ hw_sample /= (100 + dev->rx_period_adjust);
}
}
- /* no more data */
- if (!(hw_value))
- break;
- ene_dbg("RX: %d (%s)", hw_sample, pulse ? "pulse" : "space");
+ if (!dev->hw_extra_buffer && !hw_sample) {
+ dev->r_pointer = dev->w_pointer;
+ continue;
+ }
+ dbg("RX: %d (%s)", hw_sample, pulse ? "pulse" : "space");
- ev.duration = hw_sample * 1000;
+ ev.duration = MS_TO_NS(hw_sample);
ev.pulse = pulse;
ir_raw_event_store_with_filter(dev->idev, &ev);
}
}
/* 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 = 25; /*%*/
- dev->transmitter_mask = 3;
+ dev->tx_duty_cycle = 50; /*%*/
+ dev->transmitter_mask = 0x03;
+ dev->learning_mode_enabled = learning_mode_force;
- /* Force learning mode if (input == 2), otherwise
- let user set it with LIRC_SET_REC_CARRIER */
- dev->learning_enabled =
- (input == 2 && dev->hw_learning_and_tx_capable);
+ /* Set reasonable default timeout */
+ dev->props->timeout = MS_TO_NS(150000);
+}
- dev->rx_pointer = -1;
+/* 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*/
unsigned long flags;
spin_lock_irqsave(&dev->hw_lock, flags);
- dev->in_use = 1;
- ene_setup_settings(dev);
ene_rx_enable(dev);
spin_unlock_irqrestore(&dev->hw_lock, flags);
return 0;
spin_lock_irqsave(&dev->hw_lock, flags);
ene_rx_disable(dev);
- dev->in_use = 0;
spin_unlock_irqrestore(&dev->hw_lock, flags);
}
static int ene_set_tx_mask(void *data, u32 tx_mask)
{
struct ene_device *dev = (struct ene_device *)data;
- unsigned long flags;
- ene_dbg("TX: attempt to set transmitter mask %02x", tx_mask);
+ dbg("TX: attempt to set transmitter mask %02x", tx_mask);
/* invalid txmask */
- if (!tx_mask || tx_mask & ~0x3) {
- ene_dbg("TX: invalid mask");
+ if (!tx_mask || tx_mask & ~0x03) {
+ dbg("TX: invalid mask");
/* return count of transmitters */
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;
}
static int ene_set_tx_carrier(void *data, u32 carrier)
{
struct ene_device *dev = (struct ene_device *)data;
- unsigned long flags;
- u32 period = 1000000 / carrier; /* (1 / freq) (* # usec in 1 sec) */
-
- ene_dbg("TX: attempt to set tx carrier to %d kHz", carrier);
+ u32 period = 2000000 / carrier;
- if (period && (period > ENE_TX_PERIOD_MAX ||
- period < ENE_TX_PERIOD_MIN)) {
+ dbg("TX: attempt to set tx carrier to %d kHz", carrier);
- ene_dbg("TX: out of range %d-%d carrier, "
- "falling back to 32 kHz",
- 1000 / ENE_TX_PERIOD_MIN,
- 1000 / ENE_TX_PERIOD_MAX);
+ if (period && (period > ENE_CIRMOD_PRD_MAX ||
+ period < ENE_CIRMOD_PRD_MIN)) {
- period = 32; /* this is just a coincidence!!! */
+ dbg("TX: out of range %d-%d kHz carrier",
+ 2000 / ENE_CIRMOD_PRD_MIN, 2000 / ENE_CIRMOD_PRD_MAX);
+ return -1;
}
- ene_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;
}
+/*outside interface : set tx duty cycle */
+static int ene_set_tx_duty_cycle(void *data, u32 duty_cycle)
+{
+ struct ene_device *dev = (struct ene_device *)data;
+ dbg("TX: setting duty cycle to %d%%", duty_cycle);
+ dev->tx_duty_cycle = duty_cycle;
+ ene_tx_set_carrier(dev);
+ return 0;
+}
/* outside interface: enable learning mode */
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;
- ene_rx_set_inputs(dev);
+ dev->learning_mode_enabled = enable;
+ ene_rx_disable(dev);
+ ene_rx_setup(dev);
+ ene_rx_enable(dev);
spin_unlock_irqrestore(&dev->hw_lock, flags);
return 0;
}
-/* outside interface: set rec carrier */
-static int ene_set_rec_carrier(void *data, u32 min, u32 max)
+static int ene_set_carrier_report(void *data, int enable)
{
struct ene_device *dev = (struct ene_device *)data;
- ene_set_learning_mode(dev,
- max > ENE_NORMAL_RX_HI || min < ENE_NORMAL_RX_LOW);
+ unsigned long flags;
+
+ if (enable == dev->carrier_detect_enabled)
+ return 0;
+
+ spin_lock_irqsave(&dev->hw_lock, flags);
+ dev->carrier_detect_enabled = enable;
+ ene_rx_disable(dev);
+ ene_rx_setup(dev);
+ ene_rx_enable(dev);
+ spin_unlock_irqrestore(&dev->hw_lock, flags);
return 0;
}
/* outside interface: enable or disable idle mode */
-static void ene_rx_set_idle(void *data, int idle)
+static void ene_set_idle(void *data, bool idle)
{
- struct ene_device *dev = (struct ene_device *)data;
- ene_dbg("%sabling idle mode", idle ? "en" : "dis");
-
- ene_hw_write_reg_mask(dev, ENE_CIR_SAMPLE_PERIOD,
- (enable_idle && idle) ? 0 : ENE_CIR_SAMPLE_OVERFLOW,
- ENE_CIR_SAMPLE_OVERFLOW);
+ if (idle) {
+ ene_rx_reset((struct ene_device *)data);
+ dbg("RX: end of data");
+ }
}
-
/* outside interface: transmit */
static int ene_transmit(void *data, int *buf, u32 n)
{
dev->tx_sample = 0;
dev->tx_sample_pulse = 0;
- ene_dbg("TX: %d samples", dev->tx_len);
+ dbg("TX: %d samples", dev->tx_len);
spin_lock_irqsave(&dev->hw_lock, flags);
- ene_tx_hw_set_transmiter_mask(dev);
- ene_tx_prepare(dev);
+ ene_tx_enable(dev);
/* Transmit first two samples */
ene_tx_sample(dev);
spin_unlock_irqrestore(&dev->hw_lock, flags);
if (wait_for_completion_timeout(&dev->tx_complete, 2 * HZ) == 0) {
- ene_dbg("TX: timeout");
+ 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
- ene_dbg("TX: done");
+ dbg("TX: done");
return n;
}
-
/* probe entry */
static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
{
dev = kzalloc(sizeof(struct ene_device), GFP_KERNEL);
if (!input_dev || !ir_props || !dev)
- goto error;
+ goto error1;
/* validate resources */
error = -ENODEV;
if (!pnp_port_valid(pnp_dev, 0) ||
- pnp_port_len(pnp_dev, 0) < ENE_MAX_IO)
+ pnp_port_len(pnp_dev, 0) < ENE_IO_SIZE)
goto error;
if (!pnp_irq_valid(pnp_dev, 0))
goto error;
- dev->hw_io = pnp_port_start(pnp_dev, 0);
- dev->irq = pnp_irq(pnp_dev, 0);
spin_lock_init(&dev->hw_lock);
/* claim the resources */
error = -EBUSY;
- if (!request_region(dev->hw_io, ENE_MAX_IO, ENE_DRIVER_NAME))
+ dev->hw_io = pnp_port_start(pnp_dev, 0);
+ if (!request_region(dev->hw_io, ENE_IO_SIZE, ENE_DRIVER_NAME)) {
+ dev->hw_io = -1;
+ dev->irq = -1;
goto error;
+ }
+ dev->irq = pnp_irq(pnp_dev, 0);
if (request_irq(dev->irq, ene_isr,
- IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev))
+ IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev)) {
+ dev->irq = -1;
goto error;
+ }
pnp_set_drvdata(pnp_dev, dev);
dev->pnp_dev = pnp_dev;
+ /* don't allow too short/long sample periods */
+ if (sample_period < 5 || sample_period > 0x7F)
+ sample_period = ENE_DEFAULT_SAMPLE_PERIOD;
+
/* detect hardware version and features */
error = ene_hw_detect(dev);
if (error)
goto error;
- ene_setup_settings(dev);
-
if (!dev->hw_learning_and_tx_capable && txsim) {
- dev->hw_learning_and_tx_capable = 1;
+ dev->hw_learning_and_tx_capable = true;
setup_timer(&dev->tx_sim_timer, ene_tx_irqsim,
(long unsigned int)dev);
- ene_printk(KERN_WARNING,
- "Simulation of TX activated\n");
+ ene_warn("Simulation of TX activated");
}
+ if (!dev->hw_learning_and_tx_capable)
+ 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->min_timeout = ENE_MINGAP * 1000;
- ir_props->max_timeout = ENE_MAXGAP * 1000;
- ir_props->timeout = ENE_MAXGAP * 1000;
-
- if (dev->hw_revision == ENE_HW_B)
- ir_props->s_idle = ene_rx_set_idle;
-
+ ir_props->s_idle = ene_set_idle;
dev->props = ir_props;
dev->idev = input_dev;
- /* don't allow too short/long sample periods */
- if (sample_period < 5 || sample_period > 0x7F)
- sample_period = -1;
-
- /* choose default sample period */
- if (sample_period == -1) {
-
- sample_period = 50;
-
- /* on revB, hardware idle mode eats first sample
- if we set too low sample period */
- if (dev->hw_revision == ENE_HW_B && enable_idle)
- sample_period = 75;
- }
-
- ir_props->rx_resolution = sample_period * 1000;
-
if (dev->hw_learning_and_tx_capable) {
-
ir_props->s_learning_mode = ene_set_learning_mode;
-
- if (input == 0)
- ir_props->s_rx_carrier_range = ene_set_rec_carrier;
-
init_completion(&dev->tx_complete);
ir_props->tx_ir = ene_transmit;
ir_props->s_tx_mask = ene_set_tx_mask;
ir_props->s_tx_carrier = ene_set_tx_carrier;
- ir_props->tx_resolution = ENE_TX_SMPL_PERIOD * 1000;
- /* ir_props->s_carrier_report = ene_set_carrier_report; */
+ ir_props->s_tx_duty_cycle = ene_set_tx_duty_cycle;
+ ir_props->s_carrier_report = ene_set_carrier_report;
}
+ ene_rx_setup_hw_buffer(dev);
+ ene_setup_default_settings(dev);
+ ene_setup_hw_settings(dev);
- device_set_wakeup_capable(&pnp_dev->dev, 1);
- device_set_wakeup_enable(&pnp_dev->dev, 1);
+ device_set_wakeup_capable(&pnp_dev->dev, true);
+ device_set_wakeup_enable(&pnp_dev->dev, true);
if (dev->hw_learning_and_tx_capable)
input_dev->name = "ENE eHome Infrared Remote Transceiver";
else
input_dev->name = "ENE eHome Infrared Remote Receiver";
-
error = -ENODEV;
if (ir_input_register(input_dev, RC_MAP_RC6_MCE, ir_props,
ENE_DRIVER_NAME))
goto error;
-
- ene_printk(KERN_NOTICE, "driver has been succesfully loaded\n");
+ ene_notice("driver has been succesfully loaded");
return 0;
error:
- if (dev->irq)
+ if (dev && dev->irq >= 0)
free_irq(dev->irq, dev);
- if (dev->hw_io)
- release_region(dev->hw_io, ENE_MAX_IO);
-
+ if (dev && dev->hw_io >= 0)
+ release_region(dev->hw_io, ENE_IO_SIZE);
+error1:
input_free_device(input_dev);
kfree(ir_props);
kfree(dev);
spin_lock_irqsave(&dev->hw_lock, flags);
ene_rx_disable(dev);
+ ene_rx_restore_hw_buffer(dev);
spin_unlock_irqrestore(&dev->hw_lock, flags);
free_irq(dev->irq, dev);
- release_region(dev->hw_io, ENE_MAX_IO);
+ release_region(dev->hw_io, ENE_IO_SIZE);
ir_input_unregister(dev->idev);
kfree(dev->props);
kfree(dev);
static void ene_enable_wake(struct ene_device *dev, int enable)
{
enable = enable && device_may_wakeup(&dev->pnp_dev->dev);
-
- ene_dbg("wake on IR %s", enable ? "enabled" : "disabled");
-
- ene_hw_write_reg_mask(dev, ENE_FW1, enable ?
- ENE_FW1_WAKE : 0, ENE_FW1_WAKE);
+ dbg("wake on IR %s", enable ? "enabled" : "disabled");
+ ene_set_clear_reg_mask(dev, ENE_FW1, ENE_FW1_WAKE, enable);
}
#ifdef CONFIG_PM
static int ene_suspend(struct pnp_dev *pnp_dev, pm_message_t state)
{
struct ene_device *dev = pnp_get_drvdata(pnp_dev);
- ene_enable_wake(dev, 1);
+ ene_enable_wake(dev, true);
+
+ /* TODO: add support for wake pattern */
return 0;
}
static int ene_resume(struct pnp_dev *pnp_dev)
{
struct ene_device *dev = pnp_get_drvdata(pnp_dev);
- if (dev->in_use)
+ ene_setup_hw_settings(dev);
+
+ if (dev->rx_enabled)
ene_rx_enable(dev);
- ene_enable_wake(dev, 0);
+ ene_enable_wake(dev, false);
return 0;
}
#endif
static void ene_shutdown(struct pnp_dev *pnp_dev)
{
struct ene_device *dev = pnp_get_drvdata(pnp_dev);
- ene_enable_wake(dev, 1);
+ ene_enable_wake(dev, true);
}
static const struct pnp_device_id ene_ids[] = {
module_param(sample_period, int, S_IRUGO);
MODULE_PARM_DESC(sample_period, "Hardware sample period (50 us default)");
-module_param(enable_idle, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(enable_idle,
- "Enables turning off signal sampling after long inactivity time; "
- "if disabled might help detecting input signal (default: enabled)"
- " (KB3926B only)");
-
-module_param(input, bool, S_IRUGO);
-MODULE_PARM_DESC(input, "select which input to use "
- "0 - auto, 1 - standard, 2 - wideband(KB3926C+)");
+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, "Enable debug (debug=2 verbose debug output)");
+MODULE_PARM_DESC(debug, "Debug level");
module_param(txsim, bool, S_IRUGO);
MODULE_PARM_DESC(txsim,
MODULE_DEVICE_TABLE(pnp, ene_ids);
MODULE_DESCRIPTION
- ("Infrared input driver for KB3926B/KB3926C/KB3926D "
- "(aka ENE0100/ENE0200/ENE0201) CIR port");
+ ("Infrared input driver for KB3926B/C/D/E/F "
+ "(aka ENE0100/ENE0200/ENE0201/ENE0202) CIR port");
MODULE_AUTHOR("Maxim Levitsky");
MODULE_LICENSE("GPL");
git.openpandora.org / pandora-kernel.git / blobdiff