sam3: Merge sam4e8e support into sam3 code

Most of the peripherals on the sam4e8e are similar to the ones on the
sam3x8e mcu.  Merge the code together and use just one code directory.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 0 insertions, 173 deletions

diff --git a/src/sam4e8e/gpio.c b/src/sam4e8e/gpio.c
deleted file mode 100644
index 3e2c9796..00000000
--- a/src/sam4e8e/gpio.c
+++ /dev/null
@@ -1,173 +0,0 @@
-// SAM4e8e GPIO port
-//
-// Copyright (C) 2018  Florian Heilmann <Florian.Heilmann@gmx.net>
-//
-// This file may be distributed under the terms of the GNU GPLv3 license.
-
-#include "board/irq.h" // irq_save
-#include "command.h" // shutdown
-#include "gpio.h" // gpio_out_setup
-#include "internal.h" // gpio_peripheral
-#include "sam4e.h" // Pio
-#include "sched.h" // sched_shutdown
-
-static Pio * const digital_regs[] = {
-    PIOA, PIOB, PIOC, PIOD, PIOE
-};
-
-
-/****************************************************************
- * Pin multiplexing
- ****************************************************************/
-
-void
-gpio_peripheral(uint32_t gpio, char ptype, int32_t pull_up)
-{
-    uint32_t bank = GPIO2PORT(gpio), bit = GPIO2BIT(gpio);
-    Pio *regs = digital_regs[bank];
-    regs ->PIO_IDR = bit;
-
-    // Enable peripheral for pin
-    uint32_t sr;
-
-    switch (ptype) {
-    case 'A':
-        sr = regs->PIO_ABCDSR[0];
-        regs->PIO_ABCDSR[0] &= (~bit & sr);
-        sr = regs->PIO_ABCDSR[1];
-        regs->PIO_ABCDSR[1] &= (~bit & sr);
-        break;
-    case 'B':
-        sr = regs->PIO_ABCDSR[0];
-        regs->PIO_ABCDSR[0] = (bit | sr);
-        sr = regs->PIO_ABCDSR[1];
-        regs->PIO_ABCDSR[1] &= (~bit & sr);
-        break;
-    case 'C':
-        sr = regs->PIO_ABCDSR[0];
-        regs->PIO_ABCDSR[0] &= (~bit & sr);
-        sr = regs->PIO_ABCDSR[1];
-        regs->PIO_ABCDSR[1] = (bit | sr);
-        break;
-    case 'D':
-        sr = regs->PIO_ABCDSR[0];
-        regs->PIO_ABCDSR[0] = (bit | sr);
-        sr = regs->PIO_ABCDSR[1];
-        regs->PIO_ABCDSR[1] = (bit | sr);
-        break;
-    }
-
-    // Disable pin in IO controller
-    regs->PIO_PDR = bit;
-
-    // Set pullup
-    if (pull_up > 0) {
-        regs->PIO_PUER = bit;
-    } else {
-        regs->PIO_PUDR = bit;
-    }
-}
-
-
-/****************************************************************
- * General Purpose Input Output (GPIO) pins
- ****************************************************************/
-
-struct gpio_out
-gpio_out_setup(uint8_t pin, uint8_t val)
-{
-    if (GPIO2PORT(pin) >= ARRAY_SIZE(digital_regs))
-        goto fail;
-    uint32_t port = GPIO2PORT(pin);
-    Pio *regs = digital_regs[port];
-    uint32_t bank_id = ID_PIOA + port;
-    if ((PMC->PMC_PCSR0 & (1u << bank_id)) == 0) {
-        PMC->PMC_PCER0 = 1 << bank_id;
-    }
-    struct gpio_out g = { .regs=regs, .bit=GPIO2BIT(pin) };
-    gpio_out_reset(g, val);
-    return g;
-fail:
-    shutdown("Not an output pin");
-}
-
-void
-gpio_out_reset(struct gpio_out g, uint8_t val)
-{
-    Pio *regs = g.regs;
-    irqstatus_t flag = irq_save();
-    if (val)
-        regs->PIO_SODR = g.bit;
-    else
-        regs->PIO_CODR = g.bit;
-    regs->PIO_OER = g.bit;
-    regs->PIO_OWER = g.bit;
-    regs->PIO_PER = g.bit;
-    regs->PIO_PUDR = g.bit;
-    irq_restore(flag);
-}
-
-void
-gpio_out_toggle_noirq(struct gpio_out g)
-{
-    Pio *regs = g.regs;
-    regs->PIO_ODSR ^= g.bit;
-}
-
-void
-gpio_out_toggle(struct gpio_out g)
-{
-    irqstatus_t flag = irq_save();
-    gpio_out_toggle_noirq(g);
-    irq_restore(flag);
-}
-
-void
-gpio_out_write(struct gpio_out g, uint8_t val)
-{
-    Pio *regs = g.regs;
-    if (val)
-        regs->PIO_SODR = g.bit;
-    else
-        regs->PIO_CODR = g.bit;
-}
-
-struct gpio_in
-gpio_in_setup(uint8_t pin, int8_t pull_up)
-{
-    if (GPIO2PORT(pin) >= ARRAY_SIZE(digital_regs))
-        goto fail;
-    uint32_t port = GPIO2PORT(pin);
-    Pio *regs = digital_regs[port];
-    uint32_t bank_id = ID_PIOA + port;
-    if ((PMC->PMC_PCSR0 & (1u << bank_id)) == 0) {
-        PMC->PMC_PCER0 = 1 << bank_id;
-    }
-    struct gpio_in g = { .regs=regs, .bit=GPIO2BIT(pin) };
-    gpio_in_reset(g, pull_up);
-    return g;
-fail:
-    shutdown("Not an input pin");
-}
-
-void
-gpio_in_reset(struct gpio_in g, int8_t pull_up)
-{
-    Pio *regs = g.regs;
-    irqstatus_t flag = irq_save();
-    regs->PIO_IDR = g.bit;
-    if (pull_up)
-        regs->PIO_PUER = g.bit;
-    else
-        regs->PIO_PUDR = g.bit;
-    regs->PIO_ODR = g.bit;
-    regs->PIO_PER = g.bit;
-    irq_restore(flag);
-}
-
-uint8_t
-gpio_in_read(struct gpio_in g)
-{
-    Pio *regs = g.regs;
-    return !!(regs->PIO_PDSR & g.bit);
-}