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-rw-r--r--hw/lm832x.c521
1 files changed, 0 insertions, 521 deletions
diff --git a/hw/lm832x.c b/hw/lm832x.c
deleted file mode 100644
index a064dfd172..0000000000
--- a/hw/lm832x.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * National Semiconductor LM8322/8323 GPIO keyboard & PWM chips.
- *
- * Copyright (C) 2008 Nokia Corporation
- * Written by Andrzej Zaborowski <andrew@openedhand.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "hw/hw.h"
-#include "hw/i2c.h"
-#include "qemu/timer.h"
-#include "ui/console.h"
-
-typedef struct {
- I2CSlave i2c;
- uint8_t i2c_dir;
- uint8_t i2c_cycle;
- uint8_t reg;
-
- qemu_irq nirq;
- uint16_t model;
-
- struct {
- qemu_irq out[2];
- int in[2][2];
- } mux;
-
- uint8_t config;
- uint8_t status;
- uint8_t acttime;
- uint8_t error;
- uint8_t clock;
-
- struct {
- uint16_t pull;
- uint16_t mask;
- uint16_t dir;
- uint16_t level;
- qemu_irq out[16];
- } gpio;
-
- struct {
- uint8_t dbnctime;
- uint8_t size;
- uint8_t start;
- uint8_t len;
- uint8_t fifo[16];
- } kbd;
-
- struct {
- uint16_t file[256];
- uint8_t faddr;
- uint8_t addr[3];
- QEMUTimer *tm[3];
- } pwm;
-} LM823KbdState;
-
-#define INT_KEYPAD (1 << 0)
-#define INT_ERROR (1 << 3)
-#define INT_NOINIT (1 << 4)
-#define INT_PWMEND(n) (1 << (5 + n))
-
-#define ERR_BADPAR (1 << 0)
-#define ERR_CMDUNK (1 << 1)
-#define ERR_KEYOVR (1 << 2)
-#define ERR_FIFOOVR (1 << 6)
-
-static void lm_kbd_irq_update(LM823KbdState *s)
-{
- qemu_set_irq(s->nirq, !s->status);
-}
-
-static void lm_kbd_gpio_update(LM823KbdState *s)
-{
-}
-
-static void lm_kbd_reset(LM823KbdState *s)
-{
- s->config = 0x80;
- s->status = INT_NOINIT;
- s->acttime = 125;
- s->kbd.dbnctime = 3;
- s->kbd.size = 0x33;
- s->clock = 0x08;
-
- lm_kbd_irq_update(s);
- lm_kbd_gpio_update(s);
-}
-
-static void lm_kbd_error(LM823KbdState *s, int err)
-{
- s->error |= err;
- s->status |= INT_ERROR;
- lm_kbd_irq_update(s);
-}
-
-static void lm_kbd_pwm_tick(LM823KbdState *s, int line)
-{
-}
-
-static void lm_kbd_pwm_start(LM823KbdState *s, int line)
-{
- lm_kbd_pwm_tick(s, line);
-}
-
-static void lm_kbd_pwm0_tick(void *opaque)
-{
- lm_kbd_pwm_tick(opaque, 0);
-}
-static void lm_kbd_pwm1_tick(void *opaque)
-{
- lm_kbd_pwm_tick(opaque, 1);
-}
-static void lm_kbd_pwm2_tick(void *opaque)
-{
- lm_kbd_pwm_tick(opaque, 2);
-}
-
-enum {
- LM832x_CMD_READ_ID = 0x80, /* Read chip ID. */
- LM832x_CMD_WRITE_CFG = 0x81, /* Set configuration item. */
- LM832x_CMD_READ_INT = 0x82, /* Get interrupt status. */
- LM832x_CMD_RESET = 0x83, /* Reset, same as external one */
- LM823x_CMD_WRITE_PULL_DOWN = 0x84, /* Select GPIO pull-up/down. */
- LM832x_CMD_WRITE_PORT_SEL = 0x85, /* Select GPIO in/out. */
- LM832x_CMD_WRITE_PORT_STATE = 0x86, /* Set GPIO pull-up/down. */
- LM832x_CMD_READ_PORT_SEL = 0x87, /* Get GPIO in/out. */
- LM832x_CMD_READ_PORT_STATE = 0x88, /* Get GPIO pull-up/down. */
- LM832x_CMD_READ_FIFO = 0x89, /* Read byte from FIFO. */
- LM832x_CMD_RPT_READ_FIFO = 0x8a, /* Read FIFO (no increment). */
- LM832x_CMD_SET_ACTIVE = 0x8b, /* Set active time. */
- LM832x_CMD_READ_ERROR = 0x8c, /* Get error status. */
- LM832x_CMD_READ_ROTATOR = 0x8e, /* Read rotator status. */
- LM832x_CMD_SET_DEBOUNCE = 0x8f, /* Set debouncing time. */
- LM832x_CMD_SET_KEY_SIZE = 0x90, /* Set keypad size. */
- LM832x_CMD_READ_KEY_SIZE = 0x91, /* Get keypad size. */
- LM832x_CMD_READ_CFG = 0x92, /* Get configuration item. */
- LM832x_CMD_WRITE_CLOCK = 0x93, /* Set clock config. */
- LM832x_CMD_READ_CLOCK = 0x94, /* Get clock config. */
- LM832x_CMD_PWM_WRITE = 0x95, /* Write PWM script. */
- LM832x_CMD_PWM_START = 0x96, /* Start PWM engine. */
- LM832x_CMD_PWM_STOP = 0x97, /* Stop PWM engine. */
- LM832x_GENERAL_ERROR = 0xff, /* There was one error.
- Previously was represented by -1
- This is not a command */
-};
-
-#define LM832x_MAX_KPX 8
-#define LM832x_MAX_KPY 12
-
-static uint8_t lm_kbd_read(LM823KbdState *s, int reg, int byte)
-{
- int ret;
-
- switch (reg) {
- case LM832x_CMD_READ_ID:
- ret = 0x0400;
- break;
-
- case LM832x_CMD_READ_INT:
- ret = s->status;
- if (!(s->status & INT_NOINIT)) {
- s->status = 0;
- lm_kbd_irq_update(s);
- }
- break;
-
- case LM832x_CMD_READ_PORT_SEL:
- ret = s->gpio.dir;
- break;
- case LM832x_CMD_READ_PORT_STATE:
- ret = s->gpio.mask;
- break;
-
- case LM832x_CMD_READ_FIFO:
- if (s->kbd.len <= 1)
- return 0x00;
-
- /* Example response from the two commands after a INT_KEYPAD
- * interrupt caused by the key 0x3c being pressed:
- * RPT_READ_FIFO: 55 bc 00 4e ff 0a 50 08 00 29 d9 08 01 c9 01
- * READ_FIFO: bc 00 00 4e ff 0a 50 08 00 29 d9 08 01 c9 01
- * RPT_READ_FIFO: bc 00 00 4e ff 0a 50 08 00 29 d9 08 01 c9 01
- *
- * 55 is the code of the key release event serviced in the previous
- * interrupt handling.
- *
- * TODO: find out whether the FIFO is advanced a single character
- * before reading every byte or the whole size of the FIFO at the
- * last LM832x_CMD_READ_FIFO. This affects LM832x_CMD_RPT_READ_FIFO
- * output in cases where there are more than one event in the FIFO.
- * Assume 0xbc and 0x3c events are in the FIFO:
- * RPT_READ_FIFO: 55 bc 3c 00 4e ff 0a 50 08 00 29 d9 08 01 c9
- * READ_FIFO: bc 3c 00 00 4e ff 0a 50 08 00 29 d9 08 01 c9
- * Does RPT_READ_FIFO now return 0xbc and 0x3c or only 0x3c?
- */
- s->kbd.start ++;
- s->kbd.start &= sizeof(s->kbd.fifo) - 1;
- s->kbd.len --;
-
- return s->kbd.fifo[s->kbd.start];
- case LM832x_CMD_RPT_READ_FIFO:
- if (byte >= s->kbd.len)
- return 0x00;
-
- return s->kbd.fifo[(s->kbd.start + byte) & (sizeof(s->kbd.fifo) - 1)];
-
- case LM832x_CMD_READ_ERROR:
- return s->error;
-
- case LM832x_CMD_READ_ROTATOR:
- return 0;
-
- case LM832x_CMD_READ_KEY_SIZE:
- return s->kbd.size;
-
- case LM832x_CMD_READ_CFG:
- return s->config & 0xf;
-
- case LM832x_CMD_READ_CLOCK:
- return (s->clock & 0xfc) | 2;
-
- default:
- lm_kbd_error(s, ERR_CMDUNK);
- fprintf(stderr, "%s: unknown command %02x\n", __FUNCTION__, reg);
- return 0x00;
- }
-
- return ret >> (byte << 3);
-}
-
-static void lm_kbd_write(LM823KbdState *s, int reg, int byte, uint8_t value)
-{
- switch (reg) {
- case LM832x_CMD_WRITE_CFG:
- s->config = value;
- /* This must be done whenever s->mux.in is updated (never). */
- if ((s->config >> 1) & 1) /* MUX1EN */
- qemu_set_irq(s->mux.out[0], s->mux.in[0][(s->config >> 0) & 1]);
- if ((s->config >> 3) & 1) /* MUX2EN */
- qemu_set_irq(s->mux.out[0], s->mux.in[0][(s->config >> 2) & 1]);
- /* TODO: check that this is issued only following the chip reset
- * and not in the middle of operation and that it is followed by
- * the GPIO ports re-resablishing through WRITE_PORT_SEL and
- * WRITE_PORT_STATE (using a timer perhaps) and otherwise output
- * warnings. */
- s->status = 0;
- lm_kbd_irq_update(s);
- s->kbd.len = 0;
- s->kbd.start = 0;
- s->reg = LM832x_GENERAL_ERROR;
- break;
-
- case LM832x_CMD_RESET:
- if (value == 0xaa)
- lm_kbd_reset(s);
- else
- lm_kbd_error(s, ERR_BADPAR);
- s->reg = LM832x_GENERAL_ERROR;
- break;
-
- case LM823x_CMD_WRITE_PULL_DOWN:
- if (!byte)
- s->gpio.pull = value;
- else {
- s->gpio.pull |= value << 8;
- lm_kbd_gpio_update(s);
- s->reg = LM832x_GENERAL_ERROR;
- }
- break;
- case LM832x_CMD_WRITE_PORT_SEL:
- if (!byte)
- s->gpio.dir = value;
- else {
- s->gpio.dir |= value << 8;
- lm_kbd_gpio_update(s);
- s->reg = LM832x_GENERAL_ERROR;
- }
- break;
- case LM832x_CMD_WRITE_PORT_STATE:
- if (!byte)
- s->gpio.mask = value;
- else {
- s->gpio.mask |= value << 8;
- lm_kbd_gpio_update(s);
- s->reg = LM832x_GENERAL_ERROR;
- }
- break;
-
- case LM832x_CMD_SET_ACTIVE:
- s->acttime = value;
- s->reg = LM832x_GENERAL_ERROR;
- break;
-
- case LM832x_CMD_SET_DEBOUNCE:
- s->kbd.dbnctime = value;
- s->reg = LM832x_GENERAL_ERROR;
- if (!value)
- lm_kbd_error(s, ERR_BADPAR);
- break;
-
- case LM832x_CMD_SET_KEY_SIZE:
- s->kbd.size = value;
- s->reg = LM832x_GENERAL_ERROR;
- if (
- (value & 0xf) < 3 || (value & 0xf) > LM832x_MAX_KPY ||
- (value >> 4) < 3 || (value >> 4) > LM832x_MAX_KPX)
- lm_kbd_error(s, ERR_BADPAR);
- break;
-
- case LM832x_CMD_WRITE_CLOCK:
- s->clock = value;
- s->reg = LM832x_GENERAL_ERROR;
- if ((value & 3) && (value & 3) != 3) {
- lm_kbd_error(s, ERR_BADPAR);
- fprintf(stderr, "%s: invalid clock setting in RCPWM\n",
- __FUNCTION__);
- }
- /* TODO: Validate that the command is only issued once */
- break;
-
- case LM832x_CMD_PWM_WRITE:
- if (byte == 0) {
- if (!(value & 3) || (value >> 2) > 59) {
- lm_kbd_error(s, ERR_BADPAR);
- s->reg = LM832x_GENERAL_ERROR;
- break;
- }
-
- s->pwm.faddr = value;
- s->pwm.file[s->pwm.faddr] = 0;
- } else if (byte == 1) {
- s->pwm.file[s->pwm.faddr] |= value << 8;
- } else if (byte == 2) {
- s->pwm.file[s->pwm.faddr] |= value << 0;
- s->reg = LM832x_GENERAL_ERROR;
- }
- break;
- case LM832x_CMD_PWM_START:
- s->reg = LM832x_GENERAL_ERROR;
- if (!(value & 3) || (value >> 2) > 59) {
- lm_kbd_error(s, ERR_BADPAR);
- break;
- }
-
- s->pwm.addr[(value & 3) - 1] = value >> 2;
- lm_kbd_pwm_start(s, (value & 3) - 1);
- break;
- case LM832x_CMD_PWM_STOP:
- s->reg = LM832x_GENERAL_ERROR;
- if (!(value & 3)) {
- lm_kbd_error(s, ERR_BADPAR);
- break;
- }
-
- qemu_del_timer(s->pwm.tm[(value & 3) - 1]);
- break;
-
- case LM832x_GENERAL_ERROR:
- lm_kbd_error(s, ERR_BADPAR);
- break;
- default:
- lm_kbd_error(s, ERR_CMDUNK);
- fprintf(stderr, "%s: unknown command %02x\n", __FUNCTION__, reg);
- break;
- }
-}
-
-static void lm_i2c_event(I2CSlave *i2c, enum i2c_event event)
-{
- LM823KbdState *s = FROM_I2C_SLAVE(LM823KbdState, i2c);
-
- switch (event) {
- case I2C_START_RECV:
- case I2C_START_SEND:
- s->i2c_cycle = 0;
- s->i2c_dir = (event == I2C_START_SEND);
- break;
-
- default:
- break;
- }
-}
-
-static int lm_i2c_rx(I2CSlave *i2c)
-{
- LM823KbdState *s = FROM_I2C_SLAVE(LM823KbdState, i2c);
-
- return lm_kbd_read(s, s->reg, s->i2c_cycle ++);
-}
-
-static int lm_i2c_tx(I2CSlave *i2c, uint8_t data)
-{
- LM823KbdState *s = (LM823KbdState *) i2c;
-
- if (!s->i2c_cycle)
- s->reg = data;
- else
- lm_kbd_write(s, s->reg, s->i2c_cycle - 1, data);
- s->i2c_cycle ++;
-
- return 0;
-}
-
-static int lm_kbd_post_load(void *opaque, int version_id)
-{
- LM823KbdState *s = opaque;
-
- lm_kbd_irq_update(s);
- lm_kbd_gpio_update(s);
-
- return 0;
-}
-
-static const VMStateDescription vmstate_lm_kbd = {
- .name = "LM8323",
- .version_id = 0,
- .minimum_version_id = 0,
- .minimum_version_id_old = 0,
- .post_load = lm_kbd_post_load,
- .fields = (VMStateField []) {
- VMSTATE_I2C_SLAVE(i2c, LM823KbdState),
- VMSTATE_UINT8(i2c_dir, LM823KbdState),
- VMSTATE_UINT8(i2c_cycle, LM823KbdState),
- VMSTATE_UINT8(reg, LM823KbdState),
- VMSTATE_UINT8(config, LM823KbdState),
- VMSTATE_UINT8(status, LM823KbdState),
- VMSTATE_UINT8(acttime, LM823KbdState),
- VMSTATE_UINT8(error, LM823KbdState),
- VMSTATE_UINT8(clock, LM823KbdState),
- VMSTATE_UINT16(gpio.pull, LM823KbdState),
- VMSTATE_UINT16(gpio.mask, LM823KbdState),
- VMSTATE_UINT16(gpio.dir, LM823KbdState),
- VMSTATE_UINT16(gpio.level, LM823KbdState),
- VMSTATE_UINT8(kbd.dbnctime, LM823KbdState),
- VMSTATE_UINT8(kbd.size, LM823KbdState),
- VMSTATE_UINT8(kbd.start, LM823KbdState),
- VMSTATE_UINT8(kbd.len, LM823KbdState),
- VMSTATE_BUFFER(kbd.fifo, LM823KbdState),
- VMSTATE_UINT16_ARRAY(pwm.file, LM823KbdState, 256),
- VMSTATE_UINT8(pwm.faddr, LM823KbdState),
- VMSTATE_BUFFER(pwm.addr, LM823KbdState),
- VMSTATE_TIMER_ARRAY(pwm.tm, LM823KbdState, 3),
- VMSTATE_END_OF_LIST()
- }
-};
-
-
-static int lm8323_init(I2CSlave *i2c)
-{
- LM823KbdState *s = FROM_I2C_SLAVE(LM823KbdState, i2c);
-
- s->model = 0x8323;
- s->pwm.tm[0] = qemu_new_timer_ns(vm_clock, lm_kbd_pwm0_tick, s);
- s->pwm.tm[1] = qemu_new_timer_ns(vm_clock, lm_kbd_pwm1_tick, s);
- s->pwm.tm[2] = qemu_new_timer_ns(vm_clock, lm_kbd_pwm2_tick, s);
- qdev_init_gpio_out(&i2c->qdev, &s->nirq, 1);
-
- lm_kbd_reset(s);
-
- qemu_register_reset((void *) lm_kbd_reset, s);
- return 0;
-}
-
-void lm832x_key_event(DeviceState *dev, int key, int state)
-{
- LM823KbdState *s = FROM_I2C_SLAVE(LM823KbdState, I2C_SLAVE(dev));
-
- if ((s->status & INT_ERROR) && (s->error & ERR_FIFOOVR))
- return;
-
- if (s->kbd.len >= sizeof(s->kbd.fifo)) {
- lm_kbd_error(s, ERR_FIFOOVR);
- return;
- }
-
- s->kbd.fifo[(s->kbd.start + s->kbd.len ++) & (sizeof(s->kbd.fifo) - 1)] =
- key | (state << 7);
-
- /* We never set ERR_KEYOVR because we support multiple keys fine. */
- s->status |= INT_KEYPAD;
- lm_kbd_irq_update(s);
-}
-
-static void lm8323_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
-
- k->init = lm8323_init;
- k->event = lm_i2c_event;
- k->recv = lm_i2c_rx;
- k->send = lm_i2c_tx;
- dc->vmsd = &vmstate_lm_kbd;
-}
-
-static const TypeInfo lm8323_info = {
- .name = "lm8323",
- .parent = TYPE_I2C_SLAVE,
- .instance_size = sizeof(LM823KbdState),
- .class_init = lm8323_class_init,
-};
-
-static void lm832x_register_types(void)
-{
- type_register_static(&lm8323_info);
-}
-
-type_init(lm832x_register_types)
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