__irq_set_handler_locked(irq, handle);
}
-static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
-extern void bfin_gpio_irq_prepare(unsigned gpio);
+#ifdef CONFIG_GPIO_ADI
-#if !BFIN_GPIO_PINT
+static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
static void bfin_gpio_ack_irq(struct irq_data *d)
{
return 0;
}
-#ifdef CONFIG_PM
-static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
-{
- return gpio_pm_wakeup_ctrl(irq_to_gpio(d->irq), state);
-}
-#else
-# define bfin_gpio_set_wake NULL
-#endif
-
static void bfin_demux_gpio_block(unsigned int irq)
{
unsigned int gpio, mask;
bfin_demux_gpio_block(irq);
}
-#else
-
-#define NR_PINT_BITS 32
-#define IRQ_NOT_AVAIL 0xFF
-
-#define PINT_2_BANK(x) ((x) >> 5)
-#define PINT_2_BIT(x) ((x) & 0x1F)
-#define PINT_BIT(x) (1 << (PINT_2_BIT(x)))
-
-static unsigned char irq2pint_lut[NR_PINTS];
-static unsigned char pint2irq_lut[NR_PINT_SYS_IRQS * NR_PINT_BITS];
-
-static struct bfin_pint_regs * const pint[NR_PINT_SYS_IRQS] = {
- (struct bfin_pint_regs *)PINT0_MASK_SET,
- (struct bfin_pint_regs *)PINT1_MASK_SET,
- (struct bfin_pint_regs *)PINT2_MASK_SET,
- (struct bfin_pint_regs *)PINT3_MASK_SET,
-#ifdef CONFIG_BF60x
- (struct bfin_pint_regs *)PINT4_MASK_SET,
- (struct bfin_pint_regs *)PINT5_MASK_SET,
-#endif
-};
-
-inline unsigned int get_irq_base(u32 bank, u8 bmap)
-{
- unsigned int irq_base;
-
-#ifndef CONFIG_BF60x
- if (bank < 2) { /*PA-PB */
- irq_base = IRQ_PA0 + bmap * 16;
- } else { /*PC-PJ */
- irq_base = IRQ_PC0 + bmap * 16;
- }
-#else
- irq_base = IRQ_PA0 + bank * 16 + bmap * 16;
-#endif
- return irq_base;
-}
-
- /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
-void init_pint_lut(void)
-{
- u16 bank, bit, irq_base, bit_pos;
- u32 pint_assign;
- u8 bmap;
-
- memset(irq2pint_lut, IRQ_NOT_AVAIL, sizeof(irq2pint_lut));
-
- for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
-
- pint_assign = pint[bank]->assign;
-
- for (bit = 0; bit < NR_PINT_BITS; bit++) {
-
- bmap = (pint_assign >> ((bit / 8) * 8)) & 0xFF;
-
- irq_base = get_irq_base(bank, bmap);
-
- irq_base += (bit % 8) + ((bit / 8) & 1 ? 8 : 0);
- bit_pos = bit + bank * NR_PINT_BITS;
-
- pint2irq_lut[bit_pos] = irq_base - SYS_IRQS;
- irq2pint_lut[irq_base - SYS_IRQS] = bit_pos;
- }
- }
-}
-
-static void bfin_gpio_ack_irq(struct irq_data *d)
-{
- u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
- u32 pintbit = PINT_BIT(pint_val);
- u32 bank = PINT_2_BANK(pint_val);
-
- if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
- if (pint[bank]->invert_set & pintbit)
- pint[bank]->invert_clear = pintbit;
- else
- pint[bank]->invert_set = pintbit;
- }
- pint[bank]->request = pintbit;
-
-}
-
-static void bfin_gpio_mask_ack_irq(struct irq_data *d)
-{
- u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
- u32 pintbit = PINT_BIT(pint_val);
- u32 bank = PINT_2_BANK(pint_val);
-
- if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
- if (pint[bank]->invert_set & pintbit)
- pint[bank]->invert_clear = pintbit;
- else
- pint[bank]->invert_set = pintbit;
- }
-
- pint[bank]->request = pintbit;
- pint[bank]->mask_clear = pintbit;
-}
-
-static void bfin_gpio_mask_irq(struct irq_data *d)
-{
- u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-
- pint[PINT_2_BANK(pint_val)]->mask_clear = PINT_BIT(pint_val);
-}
-
-static void bfin_gpio_unmask_irq(struct irq_data *d)
-{
- u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
- u32 pintbit = PINT_BIT(pint_val);
- u32 bank = PINT_2_BANK(pint_val);
-
- pint[bank]->mask_set = pintbit;
-}
-
-static unsigned int bfin_gpio_irq_startup(struct irq_data *d)
-{
- unsigned int irq = d->irq;
- u32 gpionr = irq_to_gpio(irq);
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
-
- if (pint_val == IRQ_NOT_AVAIL) {
- printk(KERN_ERR
- "GPIO IRQ %d :Not in PINT Assign table "
- "Reconfigure Interrupt to Port Assignemt\n", irq);
- return -ENODEV;
- }
-
- if (__test_and_set_bit(gpionr, gpio_enabled))
- bfin_gpio_irq_prepare(gpionr);
-
- bfin_gpio_unmask_irq(d);
-
- return 0;
-}
-
-static void bfin_gpio_irq_shutdown(struct irq_data *d)
-{
- u32 gpionr = irq_to_gpio(d->irq);
-
- bfin_gpio_mask_irq(d);
- __clear_bit(gpionr, gpio_enabled);
- bfin_gpio_irq_free(gpionr);
-}
-
-static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type)
-{
- unsigned int irq = d->irq;
- int ret;
- char buf[16];
- u32 gpionr = irq_to_gpio(irq);
- u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
- u32 pintbit = PINT_BIT(pint_val);
- u32 bank = PINT_2_BANK(pint_val);
-
- if (pint_val == IRQ_NOT_AVAIL)
- return -ENODEV;
-
- if (type == IRQ_TYPE_PROBE) {
- /* only probe unenabled GPIO interrupt lines */
- if (test_bit(gpionr, gpio_enabled))
- return 0;
- type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
- }
-
- if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
- IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-
- snprintf(buf, 16, "gpio-irq%d", irq);
- ret = bfin_gpio_irq_request(gpionr, buf);
- if (ret)
- return ret;
-
- if (__test_and_set_bit(gpionr, gpio_enabled))
- bfin_gpio_irq_prepare(gpionr);
-
- } else {
- __clear_bit(gpionr, gpio_enabled);
- return 0;
- }
-
- if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
- pint[bank]->invert_set = pintbit; /* low or falling edge denoted by one */
- else
- pint[bank]->invert_clear = pintbit; /* high or rising edge denoted by zero */
-
- if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
- == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
- if (gpio_get_value(gpionr))
- pint[bank]->invert_set = pintbit;
- else
- pint[bank]->invert_clear = pintbit;
- }
-
- if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
- pint[bank]->edge_set = pintbit;
- bfin_set_irq_handler(irq, handle_edge_irq);
- } else {
- pint[bank]->edge_clear = pintbit;
- bfin_set_irq_handler(irq, handle_level_irq);
- }
-
- return 0;
-}
-
#ifdef CONFIG_PM
-static struct bfin_pm_pint_save save_pint_reg[NR_PINT_SYS_IRQS];
-static u32 save_pint_sec_ctl[NR_PINT_SYS_IRQS];
static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
{
- u32 pint_irq;
- u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
- u32 bank = PINT_2_BANK(pint_val);
-
- switch (bank) {
- case 0:
- pint_irq = IRQ_PINT0;
- break;
- case 2:
- pint_irq = IRQ_PINT2;
- break;
- case 3:
- pint_irq = IRQ_PINT3;
- break;
- case 1:
- pint_irq = IRQ_PINT1;
- break;
-#ifdef CONFIG_BF60x
- case 4:
- pint_irq = IRQ_PINT4;
- break;
- case 5:
- pint_irq = IRQ_PINT5;
- break;
-#endif
- default:
- return -EINVAL;
- }
+ return bfin_gpio_pm_wakeup_ctrl(irq_to_gpio(d->irq), state);
+}
-#ifndef SEC_GCTL
- bfin_internal_set_wake(pint_irq, state);
-#endif
+#else
- return 0;
-}
+# define bfin_gpio_set_wake NULL
-void bfin_pint_suspend(void)
-{
- u32 bank;
+#endif
- for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
- save_pint_reg[bank].mask_set = pint[bank]->mask_set;
- save_pint_reg[bank].assign = pint[bank]->assign;
- save_pint_reg[bank].edge_set = pint[bank]->edge_set;
- save_pint_reg[bank].invert_set = pint[bank]->invert_set;
- }
-}
+static struct irq_chip bfin_gpio_irqchip = {
+ .name = "GPIO",
+ .irq_ack = bfin_gpio_ack_irq,
+ .irq_mask = bfin_gpio_mask_irq,
+ .irq_mask_ack = bfin_gpio_mask_ack_irq,
+ .irq_unmask = bfin_gpio_unmask_irq,
+ .irq_disable = bfin_gpio_mask_irq,
+ .irq_enable = bfin_gpio_unmask_irq,
+ .irq_set_type = bfin_gpio_irq_type,
+ .irq_startup = bfin_gpio_irq_startup,
+ .irq_shutdown = bfin_gpio_irq_shutdown,
+ .irq_set_wake = bfin_gpio_set_wake,
+};
-void bfin_pint_resume(void)
-{
- u32 bank;
+#endif
- for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
- pint[bank]->mask_set = save_pint_reg[bank].mask_set;
- pint[bank]->assign = save_pint_reg[bank].assign;
- pint[bank]->edge_set = save_pint_reg[bank].edge_set;
- pint[bank]->invert_set = save_pint_reg[bank].invert_set;
- }
-}
+#ifdef CONFIG_PM
#ifdef SEC_GCTL
+static u32 save_pint_sec_ctl[NR_PINT_SYS_IRQS];
+
static int sec_suspend(void)
{
u32 bank;
.suspend = sec_suspend,
.resume = sec_resume,
};
-
-#endif
-#else
-# define bfin_gpio_set_wake NULL
-#endif
-
-void bfin_demux_gpio_irq(unsigned int inta_irq,
- struct irq_desc *desc)
-{
- u32 bank, pint_val;
- u32 request, irq;
- u32 level_mask;
- int umask = 0;
- struct irq_chip *chip = irq_desc_get_chip(desc);
-
- if (chip->irq_mask_ack) {
- chip->irq_mask_ack(&desc->irq_data);
- } else {
- chip->irq_mask(&desc->irq_data);
- if (chip->irq_ack)
- chip->irq_ack(&desc->irq_data);
- }
-
- switch (inta_irq) {
- case IRQ_PINT0:
- bank = 0;
- break;
- case IRQ_PINT2:
- bank = 2;
- break;
- case IRQ_PINT3:
- bank = 3;
- break;
- case IRQ_PINT1:
- bank = 1;
- break;
-#ifdef CONFIG_BF60x
- case IRQ_PINT4:
- bank = 4;
- break;
- case IRQ_PINT5:
- bank = 5;
- break;
#endif
- default:
- return;
- }
-
- pint_val = bank * NR_PINT_BITS;
-
- request = pint[bank]->request;
-
- level_mask = pint[bank]->edge_set & request;
-
- while (request) {
- if (request & 1) {
- irq = pint2irq_lut[pint_val] + SYS_IRQS;
- if (level_mask & PINT_BIT(pint_val)) {
- umask = 1;
- chip->irq_unmask(&desc->irq_data);
- }
- bfin_handle_irq(irq);
- }
- pint_val++;
- request >>= 1;
- }
- if (!umask)
- chip->irq_unmask(&desc->irq_data);
-}
#endif
-static struct irq_chip bfin_gpio_irqchip = {
- .name = "GPIO",
- .irq_ack = bfin_gpio_ack_irq,
- .irq_mask = bfin_gpio_mask_irq,
- .irq_mask_ack = bfin_gpio_mask_ack_irq,
- .irq_unmask = bfin_gpio_unmask_irq,
- .irq_disable = bfin_gpio_mask_irq,
- .irq_enable = bfin_gpio_unmask_irq,
- .irq_set_type = bfin_gpio_irq_type,
- .irq_startup = bfin_gpio_irq_startup,
- .irq_shutdown = bfin_gpio_irq_shutdown,
- .irq_set_wake = bfin_gpio_set_wake,
-};
-
void init_exception_vectors(void)
{
/* cannot program in software:
local_irq_disable();
-#if BFIN_GPIO_PINT
-# ifdef CONFIG_PINTx_REASSIGN
- pint[0]->assign = CONFIG_PINT0_ASSIGN;
- pint[1]->assign = CONFIG_PINT1_ASSIGN;
- pint[2]->assign = CONFIG_PINT2_ASSIGN;
- pint[3]->assign = CONFIG_PINT3_ASSIGN;
-# endif
- /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
- init_pint_lut();
-#endif
-
for (irq = 0; irq <= SYS_IRQS; irq++) {
if (irq <= IRQ_CORETMR)
irq_set_chip(irq, &bfin_core_irqchip);
irq_set_chip(irq, &bfin_internal_irqchip);
switch (irq) {
-#if BFIN_GPIO_PINT
- case IRQ_PINT0:
- case IRQ_PINT1:
- case IRQ_PINT2:
- case IRQ_PINT3:
-#elif defined(BF537_FAMILY)
+#if !BFIN_GPIO_PINT
+#if defined(BF537_FAMILY)
case IRQ_PH_INTA_MAC_RX:
case IRQ_PF_INTA_PG_INTA:
#elif defined(BF533_FAMILY)
#endif
irq_set_chained_handler(irq, bfin_demux_gpio_irq);
break;
+#endif
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
case IRQ_MAC_ERROR:
irq_set_chained_handler(irq,
handle_level_irq);
#endif
/* if configured as edge, then will be changed to do_edge_IRQ */
+#ifdef CONFIG_GPIO_ADI
for (irq = GPIO_IRQ_BASE;
irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
handle_level_irq);
+#endif
bfin_write_IMASK(0);
CSYNC();
ilat = bfin_read_ILAT();
local_irq_disable();
-#if BFIN_GPIO_PINT
-# ifdef CONFIG_PINTx_REASSIGN
- pint[0]->assign = CONFIG_PINT0_ASSIGN;
- pint[1]->assign = CONFIG_PINT1_ASSIGN;
- pint[2]->assign = CONFIG_PINT2_ASSIGN;
- pint[3]->assign = CONFIG_PINT3_ASSIGN;
- pint[4]->assign = CONFIG_PINT4_ASSIGN;
- pint[5]->assign = CONFIG_PINT5_ASSIGN;
-# endif
- /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
- init_pint_lut();
-#endif
-
for (irq = 0; irq <= SYS_IRQS; irq++) {
if (irq <= IRQ_CORETMR) {
irq_set_chip_and_handler(irq, &bfin_core_irqchip,
if (irq == IRQ_CORETMR)
irq_set_handler(irq, handle_percpu_irq);
#endif
- } else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) {
- irq_set_chip(irq, &bfin_sec_irqchip);
- irq_set_chained_handler(irq, bfin_demux_gpio_irq);
} else if (irq >= BFIN_IRQ(34) && irq <= BFIN_IRQ(37)) {
irq_set_chip_and_handler(irq, &bfin_sec_irqchip,
handle_percpu_irq);
__irq_set_preflow_handler(irq, bfin_sec_preflow_handler);
}
}
- for (irq = GPIO_IRQ_BASE;
- irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
- irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
- handle_level_irq);
bfin_write_IMASK(0);
CSYNC();
projects / linux-drm-fsl-dcu.git / blobdiff