mirror of https://github.com/xemu-project/xemu.git
hw/misc/pca9552: Rename generic code as pca955x
Various code from the PCA9552 device model is generic to the PCA955X family. We'll split the generic code in a base class in the next commit. To ease review, first do a dumb renaming. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Cédric Le Goater <clg@kaod.org> Message-id: 20200623072723.6324-4-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé
Peter Maydell
parent
8208335b95
commit
ec17228a25
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@ -25,7 +25,7 @@
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static const char *led_state[] = {"on", "off", "pwm0", "pwm1"};
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static uint8_t pca9552_pin_get_config(PCA9552State *s, int pin)
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static uint8_t pca955x_pin_get_config(PCA955xState *s, int pin)
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{
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uint8_t reg = PCA9552_LS0 + (pin / 4);
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uint8_t shift = (pin % 4) << 1;
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@ -33,14 +33,14 @@ static uint8_t pca9552_pin_get_config(PCA9552State *s, int pin)
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return extract32(s->regs[reg], shift, 2);
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}
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static void pca9552_update_pin_input(PCA9552State *s)
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static void pca955x_update_pin_input(PCA955xState *s)
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{
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int i;
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for (i = 0; i < s->pin_count; i++) {
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uint8_t input_reg = PCA9552_INPUT0 + (i / 8);
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uint8_t input_shift = (i % 8);
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uint8_t config = pca9552_pin_get_config(s, i);
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uint8_t config = pca955x_pin_get_config(s, i);
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switch (config) {
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case PCA9552_LED_ON:
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@ -58,7 +58,7 @@ static void pca9552_update_pin_input(PCA9552State *s)
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}
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}
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static uint8_t pca9552_read(PCA9552State *s, uint8_t reg)
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static uint8_t pca955x_read(PCA955xState *s, uint8_t reg)
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{
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switch (reg) {
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case PCA9552_INPUT0:
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@ -79,7 +79,7 @@ static uint8_t pca9552_read(PCA9552State *s, uint8_t reg)
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}
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}
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static void pca9552_write(PCA9552State *s, uint8_t reg, uint8_t data)
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static void pca955x_write(PCA955xState *s, uint8_t reg, uint8_t data)
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{
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switch (reg) {
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case PCA9552_PSC0:
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@ -94,7 +94,7 @@ static void pca9552_write(PCA9552State *s, uint8_t reg, uint8_t data)
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case PCA9552_LS2:
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case PCA9552_LS3:
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s->regs[reg] = data;
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pca9552_update_pin_input(s);
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pca955x_update_pin_input(s);
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break;
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case PCA9552_INPUT0:
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@ -110,7 +110,7 @@ static void pca9552_write(PCA9552State *s, uint8_t reg, uint8_t data)
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* after each byte is sent to or received by the device. The index
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* rollovers to 0 when the maximum register address is reached.
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*/
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static void pca9552_autoinc(PCA9552State *s)
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static void pca955x_autoinc(PCA955xState *s)
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{
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if (s->pointer != 0xFF && s->pointer & PCA9552_AUTOINC) {
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uint8_t reg = s->pointer & 0xf;
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@ -120,12 +120,12 @@ static void pca9552_autoinc(PCA9552State *s)
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}
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}
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static uint8_t pca9552_recv(I2CSlave *i2c)
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static uint8_t pca955x_recv(I2CSlave *i2c)
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{
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PCA9552State *s = PCA9552(i2c);
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PCA955xState *s = PCA955X(i2c);
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uint8_t ret;
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ret = pca9552_read(s, s->pointer & 0xf);
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ret = pca955x_read(s, s->pointer & 0xf);
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/*
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* From the Specs:
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@ -143,40 +143,40 @@ static uint8_t pca9552_recv(I2CSlave *i2c)
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__func__);
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}
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pca9552_autoinc(s);
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pca955x_autoinc(s);
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return ret;
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}
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static int pca9552_send(I2CSlave *i2c, uint8_t data)
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static int pca955x_send(I2CSlave *i2c, uint8_t data)
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{
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PCA9552State *s = PCA9552(i2c);
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PCA955xState *s = PCA955X(i2c);
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/* First byte sent by is the register address */
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if (s->len == 0) {
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s->pointer = data;
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s->len++;
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} else {
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pca9552_write(s, s->pointer & 0xf, data);
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pca955x_write(s, s->pointer & 0xf, data);
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pca9552_autoinc(s);
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pca955x_autoinc(s);
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}
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return 0;
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}
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static int pca9552_event(I2CSlave *i2c, enum i2c_event event)
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static int pca955x_event(I2CSlave *i2c, enum i2c_event event)
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{
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PCA9552State *s = PCA9552(i2c);
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PCA955xState *s = PCA955X(i2c);
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s->len = 0;
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return 0;
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}
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static void pca9552_get_led(Object *obj, Visitor *v, const char *name,
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static void pca955x_get_led(Object *obj, Visitor *v, const char *name,
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void *opaque, Error **errp)
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{
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PCA9552State *s = PCA9552(obj);
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PCA955xState *s = PCA955X(obj);
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int led, rc, reg;
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uint8_t state;
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@ -195,7 +195,7 @@ static void pca9552_get_led(Object *obj, Visitor *v, const char *name,
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* reading the INPUTx reg
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*/
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reg = PCA9552_LS0 + led / 4;
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state = (pca9552_read(s, reg) >> (led % 8)) & 0x3;
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state = (pca955x_read(s, reg) >> (led % 8)) & 0x3;
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visit_type_str(v, name, (char **)&led_state[state], errp);
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}
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@ -209,10 +209,10 @@ static inline uint8_t pca955x_ledsel(uint8_t oldval, int led_num, int state)
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((state & 0x3) << (led_num << 1));
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}
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static void pca9552_set_led(Object *obj, Visitor *v, const char *name,
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static void pca955x_set_led(Object *obj, Visitor *v, const char *name,
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void *opaque, Error **errp)
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{
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PCA9552State *s = PCA9552(obj);
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PCA955xState *s = PCA955X(obj);
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Error *local_err = NULL;
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int led, rc, reg, val;
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uint8_t state;
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@ -244,9 +244,9 @@ static void pca9552_set_led(Object *obj, Visitor *v, const char *name,
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}
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reg = PCA9552_LS0 + led / 4;
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val = pca9552_read(s, reg);
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val = pca955x_read(s, reg);
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val = pca955x_ledsel(val, led % 4, state);
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pca9552_write(s, reg, val);
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pca955x_write(s, reg, val);
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}
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static const VMStateDescription pca9552_vmstate = {
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@ -254,17 +254,17 @@ static const VMStateDescription pca9552_vmstate = {
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.version_id = 0,
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.minimum_version_id = 0,
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.fields = (VMStateField[]) {
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VMSTATE_UINT8(len, PCA9552State),
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VMSTATE_UINT8(pointer, PCA9552State),
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VMSTATE_UINT8_ARRAY(regs, PCA9552State, PCA9552_NR_REGS),
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VMSTATE_I2C_SLAVE(i2c, PCA9552State),
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VMSTATE_UINT8(len, PCA955xState),
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VMSTATE_UINT8(pointer, PCA955xState),
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VMSTATE_UINT8_ARRAY(regs, PCA955xState, PCA955X_NR_REGS),
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VMSTATE_I2C_SLAVE(i2c, PCA955xState),
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VMSTATE_END_OF_LIST()
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}
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};
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static void pca9552_reset(DeviceState *dev)
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{
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PCA9552State *s = PCA9552(dev);
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PCA955xState *s = PCA955X(dev);
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s->regs[PCA9552_PSC0] = 0xFF;
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s->regs[PCA9552_PWM0] = 0x80;
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@ -275,15 +275,15 @@ static void pca9552_reset(DeviceState *dev)
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s->regs[PCA9552_LS2] = 0x55;
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s->regs[PCA9552_LS3] = 0x55;
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pca9552_update_pin_input(s);
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pca955x_update_pin_input(s);
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s->pointer = 0xFF;
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s->len = 0;
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}
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static void pca9552_initfn(Object *obj)
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static void pca955x_initfn(Object *obj)
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{
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PCA9552State *s = PCA9552(obj);
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PCA955xState *s = PCA955X(obj);
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int led;
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/* If support for the other PCA955X devices are implemented, these
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@ -297,7 +297,7 @@ static void pca9552_initfn(Object *obj)
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char *name;
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name = g_strdup_printf("led%d", led);
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object_property_add(obj, name, "bool", pca9552_get_led, pca9552_set_led,
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object_property_add(obj, name, "bool", pca955x_get_led, pca955x_set_led,
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NULL, NULL);
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g_free(name);
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}
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@ -308,9 +308,9 @@ static void pca9552_class_init(ObjectClass *klass, void *data)
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DeviceClass *dc = DEVICE_CLASS(klass);
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I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
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k->event = pca9552_event;
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k->recv = pca9552_recv;
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k->send = pca9552_send;
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k->event = pca955x_event;
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k->recv = pca955x_recv;
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k->send = pca955x_send;
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dc->reset = pca9552_reset;
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dc->vmsd = &pca9552_vmstate;
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}
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@ -318,14 +318,14 @@ static void pca9552_class_init(ObjectClass *klass, void *data)
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static const TypeInfo pca9552_info = {
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.name = TYPE_PCA9552,
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.parent = TYPE_I2C_SLAVE,
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.instance_init = pca9552_initfn,
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.instance_size = sizeof(PCA9552State),
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.instance_init = pca955x_initfn,
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.instance_size = sizeof(PCA955xState),
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.class_init = pca9552_class_init,
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};
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static void pca9552_register_types(void)
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static void pca955x_register_types(void)
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{
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type_register_static(&pca9552_info);
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}
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type_init(pca9552_register_types)
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type_init(pca955x_register_types)
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@ -12,11 +12,11 @@
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#include "hw/i2c/i2c.h"
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#define TYPE_PCA9552 "pca9552"
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#define PCA9552(obj) OBJECT_CHECK(PCA9552State, (obj), TYPE_PCA9552)
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#define PCA955X(obj) OBJECT_CHECK(PCA955xState, (obj), TYPE_PCA9552)
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#define PCA9552_NR_REGS 10
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#define PCA955X_NR_REGS 10
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typedef struct PCA9552State {
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typedef struct PCA955xState {
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/*< private >*/
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I2CSlave i2c;
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/*< public >*/
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@ -24,9 +24,9 @@ typedef struct PCA9552State {
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uint8_t len;
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uint8_t pointer;
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uint8_t regs[PCA9552_NR_REGS];
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uint8_t regs[PCA955X_NR_REGS];
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uint8_t max_reg;
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uint8_t pin_count;
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} PCA9552State;
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} PCA955xState;
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#endif
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