From 66dc9f9d0164aee9df0a637f01e8d88bbf3d893f Mon Sep 17 00:00:00 2001 From: mokopatches Date: Wed, 19 Nov 2008 17:03:14 +0000 Subject: smedia-glamo.patch [ FIXME: include/asm-arm/arch-s3c2410/irqs.h shouldn't contain device-specific changes. ] This is a Linux kernel driver for the Smedia Glamo336x / Glamo337x multi-function peripheral device. Signed-off-by: Harald Welte --- drivers/mfd/Kconfig | 2 + drivers/mfd/Makefile | 1 + drivers/mfd/glamo/Kconfig | 35 ++ drivers/mfd/glamo/Makefile | 11 + drivers/mfd/glamo/glamo-core.c | 1151 ++++++++++++++++++++++++++++++++++++ drivers/mfd/glamo/glamo-core.h | 91 +++ drivers/mfd/glamo/glamo-fb.c | 822 +++++++++++++++++++++++++ drivers/mfd/glamo/glamo-gpio.c | 62 ++ drivers/mfd/glamo/glamo-lcm-spi.c | 241 ++++++++ drivers/mfd/glamo/glamo-regs.h | 477 +++++++++++++++ drivers/mfd/glamo/glamo-spi-gpio.c | 256 ++++++++ 11 files changed, 3149 insertions(+) create mode 100644 drivers/mfd/glamo/Kconfig create mode 100644 drivers/mfd/glamo/Makefile create mode 100644 drivers/mfd/glamo/glamo-core.c create mode 100644 drivers/mfd/glamo/glamo-core.h create mode 100644 drivers/mfd/glamo/glamo-fb.c create mode 100644 drivers/mfd/glamo/glamo-gpio.c create mode 100644 drivers/mfd/glamo/glamo-lcm-spi.c create mode 100644 drivers/mfd/glamo/glamo-regs.h create mode 100644 drivers/mfd/glamo/glamo-spi-gpio.c (limited to 'drivers') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 257277394f8..10e5b2cbb13 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -153,6 +153,8 @@ config MFD_WM8350_I2C I2C as the control interface. Additional options must be selected to enable support for the functionality of the chip. +source "drivers/mfd/glamo/Kconfig" + endmenu menu "Multimedia Capabilities Port drivers" diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 9a5ad8af911..b917368fbda 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_MFD_SM501) += sm501.o obj-$(CONFIG_MFD_ASIC3) += asic3.o +obj-$(CONFIG_MFD_GLAMO) += glamo/ obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o diff --git a/drivers/mfd/glamo/Kconfig b/drivers/mfd/glamo/Kconfig new file mode 100644 index 00000000000..b99f2b29f9b --- /dev/null +++ b/drivers/mfd/glamo/Kconfig @@ -0,0 +1,35 @@ +config MFD_GLAMO + bool "Smedia Glamo 336x/337x support" + help + This enables the core driver for the Smedia Glamo 336x/337x + multi-function device. It includes irq_chip demultiplex as + well as clock / power management and GPIO support. + +config MFD_GLAMO_FB + tristate "Smedia Glamo 336x/337x framebuffer support" + depends on FB && MFD_GLAMO + help + Frame buffer driver for the LCD controller in the Smedia Glamo + 336x/337x. + + This driver is also available as a module ( = code which can be + inserted and removed from the running kernel whenever you want). The + module will be called glamofb. If you want to compile it as a module, + say M here and read . + + If unsure, say N. + +config MFD_GLAMO_SPI_GPIO + tristate "Glamo GPIO SPI bitbang support" + depends on MFD_GLAMO + help + Enable a bitbanging SPI adapter driver for the Smedia Glamo. + +config MFD_GLAMO_SPI_FB + tristate "Glamo LCM control channel SPI support" + depends on MFD_GLAMO_FB + help + Enable a bitbanging SPI adapter driver for the Smedia Glamo LCM + control channel. This SPI interface is frequently used to + interconnect the LCM control interface. + diff --git a/drivers/mfd/glamo/Makefile b/drivers/mfd/glamo/Makefile new file mode 100644 index 00000000000..fb539828637 --- /dev/null +++ b/drivers/mfd/glamo/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the Smedia Glamo framebuffer driver +# + +obj-$(CONFIG_MFD_GLAMO) += glamo-core.o glamo-gpio.o +obj-$(CONFIG_MFD_GLAMO_SPI) += glamo-spi.o +obj-$(CONFIG_MFD_GLAMO_SPI_GPIO) += glamo-spi-gpio.o + +obj-$(CONFIG_MFD_GLAMO_FB) += glamo-fb.o +obj-$(CONFIG_MFD_GLAMO_SPI_FB) += glamo-lcm-spi.o + diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c new file mode 100644 index 00000000000..acf545fbdb6 --- /dev/null +++ b/drivers/mfd/glamo/glamo-core.c @@ -0,0 +1,1151 @@ +/* Smedia Glamo 336x/337x driver + * + * (C) 2007 by OpenMoko, Inc. + * Author: Harald Welte + * All rights reserved. + * + * 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 of + * the License, or (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#ifdef CONFIG_PM +#include +#endif + +#include "glamo-regs.h" +#include "glamo-core.h" + +#define RESSIZE(ressource) (((ressource)->end - (ressource)->start)+1) + +static struct glamo_core *glamo_handle; + +static inline void __reg_write(struct glamo_core *glamo, + u_int16_t reg, u_int16_t val) +{ + writew(val, glamo->base + reg); +} + +static inline u_int16_t __reg_read(struct glamo_core *glamo, + u_int16_t reg) +{ + return readw(glamo->base + reg); +} + +static void __reg_set_bit_mask(struct glamo_core *glamo, + u_int16_t reg, u_int16_t mask, + u_int16_t val) +{ + u_int16_t tmp; + + val &= mask; + + tmp = __reg_read(glamo, reg); + tmp &= ~mask; + tmp |= val; + __reg_write(glamo, reg, tmp); +} + +static void reg_set_bit_mask(struct glamo_core *glamo, + u_int16_t reg, u_int16_t mask, + u_int16_t val) +{ + spin_lock(&glamo->lock); + __reg_set_bit_mask(glamo, reg, mask, val); + spin_unlock(&glamo->lock); +} + +static inline void __reg_set_bit(struct glamo_core *glamo, + u_int16_t reg, u_int16_t bit) +{ + __reg_set_bit_mask(glamo, reg, bit, 0xffff); +} + +static inline void __reg_clear_bit(struct glamo_core *glamo, + u_int16_t reg, u_int16_t bit) +{ + __reg_set_bit_mask(glamo, reg, bit, 0); +} + +static inline void glamo_vmem_write(struct glamo_core *glamo, u_int32_t addr, + u_int16_t *src, int len) +{ + if (addr & 0x0001 || (unsigned long)src & 0x0001 || len & 0x0001) { + dev_err(&glamo->pdev->dev, "unaligned write(0x%08x, 0x%p, " + "0x%x)!!\n", addr, src, len); + } + +} + +static inline void glamo_vmem_read(struct glamo_core *glamo, u_int16_t *buf, + u_int32_t addr, int len) +{ + if (addr & 0x0001 || (unsigned long) buf & 0x0001 || len & 0x0001) { + dev_err(&glamo->pdev->dev, "unaligned read(0x%p, 0x08%x, " + "0x%x)!!\n", buf, addr, len); + } + + +} + +/*********************************************************************** + * resources of sibling devices + ***********************************************************************/ + +#if 0 +static struct resource glamo_core_resources[] = { + { + .start = GLAMO_REGOFS_GENERIC, + .end = GLAMO_REGOFS_GENERIC + 0x400, + .flags = IORESOURCE_MEM, + }, { + .start = 0, + .end = 0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device glamo_core_dev = { + .name = "glamo-core", + .resource = &glamo_core_resources, + .num_resources = ARRAY_SIZE(glamo_core_resources), +}; +#endif + +static struct resource glamo_jpeg_resources[] = { + { + .start = GLAMO_REGOFS_JPEG, + .end = GLAMO_REGOFS_MPEG - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_GLAMO_JPEG, + .end = IRQ_GLAMO_JPEG, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device glamo_jpeg_dev = { + .name = "glamo-jpeg", + .resource = glamo_jpeg_resources, + .num_resources = ARRAY_SIZE(glamo_jpeg_resources), +}; + +static struct resource glamo_mpeg_resources[] = { + { + .start = GLAMO_REGOFS_MPEG, + .end = GLAMO_REGOFS_LCD - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_GLAMO_MPEG, + .end = IRQ_GLAMO_MPEG, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device glamo_mpeg_dev = { + .name = "glamo-mpeg", + .resource = glamo_mpeg_resources, + .num_resources = ARRAY_SIZE(glamo_mpeg_resources), +}; + +static struct resource glamo_2d_resources[] = { + { + .start = GLAMO_REGOFS_2D, + .end = GLAMO_REGOFS_3D - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_GLAMO_2D, + .end = IRQ_GLAMO_2D, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device glamo_2d_dev = { + .name = "glamo-2d", + .resource = glamo_2d_resources, + .num_resources = ARRAY_SIZE(glamo_2d_resources), +}; + +static struct resource glamo_3d_resources[] = { + { + .start = GLAMO_REGOFS_3D, + .end = GLAMO_REGOFS_END - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device glamo_3d_dev = { + .name = "glamo-3d", + .resource = glamo_3d_resources, + .num_resources = ARRAY_SIZE(glamo_3d_resources), +}; + +static struct platform_device glamo_spigpio_dev = { + .name = "glamo-spi-gpio", +}; + +static struct resource glamo_fb_resources[] = { + /* FIXME: those need to be incremented by parent base */ + { + .name = "glamo-fb-regs", + .start = GLAMO_REGOFS_LCD, + .end = GLAMO_REGOFS_MMC - 1, + .flags = IORESOURCE_MEM, + }, { + .name = "glamo-fb-mem", + .start = GLAMO_OFFSET_FB, + .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device glamo_fb_dev = { + .name = "glamo-fb", + .resource = glamo_fb_resources, + .num_resources = ARRAY_SIZE(glamo_fb_resources), +}; + +static struct resource glamo_mmc_resources[] = { + { + /* FIXME: those need to be incremented by parent base */ + .start = GLAMO_REGOFS_MMC, + .end = GLAMO_REGOFS_MPROC0 - 1, + .flags = IORESOURCE_MEM + }, { + .start = IRQ_GLAMO_MMC, + .end = IRQ_GLAMO_MMC, + .flags = IORESOURCE_IRQ, + }, { /* our data buffer for MMC transfers */ + .start = GLAMO_OFFSET_FB + GLAMO_FB_SIZE, + .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE + + GLAMO_MMC_BUFFER_SIZE - 1, + .flags = IORESOURCE_MEM + }, +}; + +static struct platform_device glamo_mmc_dev = { + .name = "glamo-mci", + .resource = glamo_mmc_resources, + .num_resources = ARRAY_SIZE(glamo_mmc_resources), +}; + +struct glamo_mci_pdata glamo_mci_def_pdata = { + .gpio_detect = 0, + .glamo_set_mci_power = NULL, /* filled in from MFD platform data */ + .ocr_avail = MMC_VDD_32_33, + .glamo_irq_is_wired = NULL, /* filled in from MFD platform data */ +}; +EXPORT_SYMBOL_GPL(glamo_mci_def_pdata); + + + +static void mangle_mem_resources(struct resource *res, int num_res, + struct resource *parent) +{ + int i; + + for (i = 0; i < num_res; i++) { + if (res[i].flags != IORESOURCE_MEM) + continue; + res[i].start += parent->start; + res[i].end += parent->start; + res[i].parent = parent; + } +} + +/*********************************************************************** + * IRQ demultiplexer + ***********************************************************************/ +#define irq2glamo(x) (x - IRQ_GLAMO(0)) + +static void glamo_ack_irq(unsigned int irq) +{ + /* clear interrupt source */ + __reg_write(glamo_handle, GLAMO_REG_IRQ_CLEAR, + 1 << irq2glamo(irq)); +} + +static void glamo_mask_irq(unsigned int irq) +{ + u_int16_t tmp; + + /* clear bit in enable register */ + tmp = __reg_read(glamo_handle, GLAMO_REG_IRQ_ENABLE); + tmp &= ~(1 << irq2glamo(irq)); + __reg_write(glamo_handle, GLAMO_REG_IRQ_ENABLE, tmp); +} + +static void glamo_unmask_irq(unsigned int irq) +{ + u_int16_t tmp; + + /* set bit in enable register */ + tmp = __reg_read(glamo_handle, GLAMO_REG_IRQ_ENABLE); + tmp |= (1 << irq2glamo(irq)); + __reg_write(glamo_handle, GLAMO_REG_IRQ_ENABLE, tmp); +} + +static struct irq_chip glamo_irq_chip = { + .ack = glamo_ack_irq, + .mask = glamo_mask_irq, + .unmask = glamo_unmask_irq, +}; + +static void glamo_irq_demux_handler(unsigned int irq, struct irq_desc *desc) +{ + const unsigned int cpu = smp_processor_id(); + + spin_lock(&desc->lock); + + desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); + + if (unlikely(desc->status & IRQ_INPROGRESS)) { + desc->status |= (IRQ_PENDING | IRQ_MASKED); + desc->chip->mask(irq); + desc->chip->ack(irq); + goto out_unlock; + } + + kstat_cpu(cpu).irqs[irq]++; + desc->chip->ack(irq); + desc->status |= IRQ_INPROGRESS; + + do { + u_int16_t irqstatus; + int i; + + if (unlikely((desc->status & + (IRQ_PENDING | IRQ_MASKED | IRQ_DISABLED)) == + (IRQ_PENDING | IRQ_MASKED))) { + /* dealing with pending IRQ, unmasking */ + desc->chip->unmask(irq); + desc->status &= ~IRQ_MASKED; + } + + desc->status &= ~IRQ_PENDING; + + /* read IRQ status register */ + irqstatus = __reg_read(glamo_handle, GLAMO_REG_IRQ_STATUS); + for (i = 0; i < 9; i++) + if (irqstatus & (1 << i)) + desc_handle_irq(IRQ_GLAMO(i), + irq_desc+IRQ_GLAMO(i)); + + } while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING); + + desc->status &= ~IRQ_INPROGRESS; + +out_unlock: + spin_unlock(&desc->lock); +} + +/*********************************************************************** + * 'engine' support + ***********************************************************************/ + +int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine) +{ + spin_lock(&glamo->lock); + switch (engine) { + case GLAMO_ENGINE_LCD: + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_LCD, + GLAMO_CLOCK_LCD_EN_M5CLK | + GLAMO_CLOCK_LCD_EN_DHCLK | + GLAMO_CLOCK_LCD_EN_DMCLK | + GLAMO_CLOCK_LCD_EN_DCLK | + GLAMO_CLOCK_LCD_DG_M5CLK | + GLAMO_CLOCK_LCD_DG_DMCLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_GEN5_1, + GLAMO_CLOCK_GEN51_EN_DIV_DHCLK | + GLAMO_CLOCK_GEN51_EN_DIV_DMCLK | + GLAMO_CLOCK_GEN51_EN_DIV_DCLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), + GLAMO_HOSTBUS2_MMIO_EN_LCD, + 0xffff); + break; + case GLAMO_ENGINE_MMC: + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MMC, + GLAMO_CLOCK_MMC_EN_M9CLK | + GLAMO_CLOCK_MMC_EN_TCLK | + GLAMO_CLOCK_MMC_DG_M9CLK | + GLAMO_CLOCK_MMC_DG_TCLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), + GLAMO_HOSTBUS2_MMIO_EN_MMC, + GLAMO_HOSTBUS2_MMIO_EN_MMC); + break; + case GLAMO_ENGINE_2D: + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_2D, + GLAMO_CLOCK_2D_EN_M7CLK | + GLAMO_CLOCK_2D_EN_GCLK | + GLAMO_CLOCK_2D_DG_M7CLK | + GLAMO_CLOCK_2D_DG_GCLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), + GLAMO_HOSTBUS2_MMIO_EN_2D, + GLAMO_HOSTBUS2_MMIO_EN_2D); + break; + case GLAMO_ENGINE_CMDQ: + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_2D, + GLAMO_CLOCK_2D_EN_M6CLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), + GLAMO_HOSTBUS2_MMIO_EN_CQ, + GLAMO_HOSTBUS2_MMIO_EN_CQ); + break; + /* FIXME: Implementation */ + default: + break; + } + spin_unlock(&glamo->lock); + + return 0; +} +EXPORT_SYMBOL_GPL(glamo_engine_enable); + +int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) +{ + spin_lock(&glamo->lock); + switch (engine) { + /* FIXME: Implementation */ + default: + break; + } + spin_unlock(&glamo->lock); + + return 0; +} +EXPORT_SYMBOL_GPL(glamo_engine_disable); + +struct glamo_script reset_regs[] = { + [GLAMO_ENGINE_LCD] = { + GLAMO_REG_CLOCK_LCD, GLAMO_CLOCK_LCD_RESET + }, +#if 0 + [GLAMO_ENGINE_HOST] = { + GLAMO_REG_CLOCK_HOST, GLAMO_CLOCK_HOST_RESET + }, + [GLAMO_ENGINE_MEM] = { + GLAMO_REG_CLOCK_MEM, GLAMO_CLOCK_MEM_RESET + }, +#endif + [GLAMO_ENGINE_MMC] = { + GLAMO_REG_CLOCK_MMC, GLAMO_CLOCK_MMC_RESET + }, + [GLAMO_ENGINE_2D] = { + GLAMO_REG_CLOCK_2D, GLAMO_CLOCK_2D_RESET + }, + [GLAMO_ENGINE_JPEG] = { + GLAMO_REG_CLOCK_JPEG, GLAMO_CLOCK_JPEG_RESET + }, +}; + +void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine) +{ + struct glamo_script *rst; + + if (engine >= ARRAY_SIZE(reset_regs)) { + dev_warn(&glamo->pdev->dev, "unknown engine %u ", engine); + return; + } + + rst = &reset_regs[engine]; + + spin_lock(&glamo->lock); + __reg_set_bit(glamo, rst->reg, rst->val); + spin_unlock(&glamo->lock); + + msleep(1); + + spin_lock(&glamo->lock); + __reg_clear_bit(glamo, rst->reg, rst->val); + spin_unlock(&glamo->lock); + + msleep(1); +} +EXPORT_SYMBOL_GPL(glamo_engine_reset); + +enum glamo_pll { + GLAMO_PLL1, + GLAMO_PLL2, +}; + +static int glamo_pll_rate(struct glamo_core *glamo, + enum glamo_pll pll) +{ + u_int16_t reg; + unsigned int div = 512; + /* FIXME: move osci into platform_data */ + unsigned int osci = 32768; + + if (osci == 32768) + div = 1; + + switch (pll) { + case GLAMO_PLL1: + reg = __reg_read(glamo, GLAMO_REG_PLL_GEN1); + break; + case GLAMO_PLL2: + reg = __reg_read(glamo, GLAMO_REG_PLL_GEN3); + break; + default: + return -EINVAL; + } + return (osci/div)*reg; +} + +int glamo_engine_reclock(struct glamo_core *glamo, + enum glamo_engine engine, + int ps) +{ + int pll, khz; + u_int16_t reg, mask, val = 0; + + if (!ps) + return 0; + + switch (engine) { + case GLAMO_ENGINE_LCD: + pll = GLAMO_PLL1; + reg = GLAMO_REG_CLOCK_GEN7; + mask = 0xff; + break; + default: + dev_warn(&glamo->pdev->dev, + "reclock of engine 0x%x not supported\n", engine); + return -EINVAL; + break; + } + + pll = glamo_pll_rate(glamo, pll); + khz = 1000000000UL / ps; + + if (khz) + val = (pll / khz) / 1000; + + dev_dbg(&glamo->pdev->dev, + "PLL %d, kHZ %d, div %d\n", pll, khz, val); + + if (val) { + val--; + reg_set_bit_mask(glamo, reg, mask, val); + msleep(5); /* wait some time to stabilize */ + + return 0; + } else { + return -EINVAL; + } +} +EXPORT_SYMBOL_GPL(glamo_engine_reclock); + +/*********************************************************************** + * script support + ***********************************************************************/ + +int glamo_run_script(struct glamo_core *glamo, struct glamo_script *script, + int len, int may_sleep) +{ + int i; + + for (i = 0; i < len; i++) { + struct glamo_script *line = &script[i]; + + switch (line->reg) { + case 0xffff: + return 0; + case 0xfffe: + if (may_sleep) + msleep(line->val); + else + mdelay(line->val); + break; + case 0xfffd: + /* spin until PLLs lock */ + while ((__reg_read(glamo, GLAMO_REG_PLL_GEN5) & 3) != 3) + ; + break; + default: + __reg_write(glamo, script[i].reg, script[i].val); + break; + } + } + + return 0; +} +EXPORT_SYMBOL(glamo_run_script); + +static struct glamo_script glamo_init_script[] = { + { GLAMO_REG_CLOCK_HOST, 0x1000 }, + { 0xfffe, 2 }, + { GLAMO_REG_CLOCK_MEMORY, 0x1000 }, + { GLAMO_REG_CLOCK_MEMORY, 0x2000 }, + { GLAMO_REG_CLOCK_LCD, 0x1000 }, + { GLAMO_REG_CLOCK_MMC, 0x1000 }, + { GLAMO_REG_CLOCK_ISP, 0x1000 }, + { GLAMO_REG_CLOCK_ISP, 0x3000 }, + { GLAMO_REG_CLOCK_JPEG, 0x1000 }, + { GLAMO_REG_CLOCK_3D, 0x1000 }, + { GLAMO_REG_CLOCK_3D, 0x3000 }, + { GLAMO_REG_CLOCK_2D, 0x1000 }, + { GLAMO_REG_CLOCK_2D, 0x3000 }, + { GLAMO_REG_CLOCK_RISC1, 0x1000 }, + { GLAMO_REG_CLOCK_MPEG, 0x3000 }, + { GLAMO_REG_CLOCK_MPEG, 0x3000 }, + { GLAMO_REG_CLOCK_MPROC, 0x1000 /*0x100f*/ }, + { 0xfffe, 2 }, + { GLAMO_REG_CLOCK_HOST, 0x0000 }, + { GLAMO_REG_CLOCK_MEMORY, 0x0000 }, + { GLAMO_REG_CLOCK_LCD, 0x0000 }, + { GLAMO_REG_CLOCK_MMC, 0x0000 }, +#if 0 +/* unused engines must be left in reset to stop MMC block read "blackouts" */ + { GLAMO_REG_CLOCK_ISP, 0x0000 }, + { GLAMO_REG_CLOCK_ISP, 0x0000 }, + { GLAMO_REG_CLOCK_JPEG, 0x0000 }, + { GLAMO_REG_CLOCK_3D, 0x0000 }, + { GLAMO_REG_CLOCK_3D, 0x0000 }, + { GLAMO_REG_CLOCK_2D, 0x0000 }, + { GLAMO_REG_CLOCK_2D, 0x0000 }, + { GLAMO_REG_CLOCK_RISC1, 0x0000 }, + { GLAMO_REG_CLOCK_MPEG, 0x0000 }, + { GLAMO_REG_CLOCK_MPEG, 0x0000 }, +#endif + { GLAMO_REG_PLL_GEN1, 0x05db }, /* 48MHz */ + { GLAMO_REG_PLL_GEN3, 0x09c3 }, /* 80MHz */ + { 0xfffd, 0 }, + /* + * b9 of this register MUST be zero to get any interrupts on INT# + * the other set bits enable all the engine interrupt sources + */ + { GLAMO_REG_IRQ_ENABLE, 0x01ff }, + { GLAMO_REG_CLOCK_GEN6, 0x2000 }, + { GLAMO_REG_CLOCK_GEN7, 0x0101 }, + { GLAMO_REG_CLOCK_GEN8, 0x0100 }, + { GLAMO_REG_CLOCK_HOST, 0x000d }, + { 0x200, 0x0ef0 }, + { 0x202, 0x07ff }, + { 0x212, 0x0000 }, + { 0x214, 0x4000 }, + { 0x216, 0xf00e }, + { GLAMO_REG_MEM_TYPE, 0x0874 }, /* 8MB, 16 word pg wr+rd */ + { GLAMO_REG_MEM_GEN, 0xafaf }, /* 63 grants min + max */ + /* + * the register below originally 0x0108 makes unreliable Glamo MMC + * write operations. Cranked to 0x05ad to add a wait state, the + * unreliability is not seen after 4GB of write / read testing + */ + { GLAMO_REG_MEM_TIMING1, 0x0108 }, + { GLAMO_REG_MEM_TIMING2, 0x0010 }, /* Taa = 3 MCLK */ + { GLAMO_REG_MEM_TIMING3, 0x0000 }, + { GLAMO_REG_MEM_TIMING4, 0x0000 }, /* CE1# delay fall/rise */ + { GLAMO_REG_MEM_TIMING5, 0x0000 }, /* UB# LB# */ + { GLAMO_REG_MEM_TIMING6, 0x0000 }, /* OE# */ + { GLAMO_REG_MEM_TIMING7, 0x0000 }, /* WE# */ + { GLAMO_REG_MEM_TIMING8, 0x1002 }, /* MCLK delay, was 0x1000 */ + { GLAMO_REG_MEM_TIMING9, 0x6006 }, + { GLAMO_REG_MEM_TIMING10, 0x00ff }, + { GLAMO_REG_MEM_TIMING11, 0x0001 }, + { GLAMO_REG_MEM_POWER1, 0x0020 }, + { GLAMO_REG_MEM_POWER2, 0x0000 }, + { GLAMO_REG_MEM_DRAM1, 0x0000 }, + { 0xfffe, 1 }, + { GLAMO_REG_MEM_DRAM1, 0xc100 }, + { 0xfffe, 1 }, + { GLAMO_REG_MEM_DRAM1, 0xe100 }, + { GLAMO_REG_MEM_DRAM2, 0x01d6 }, + { GLAMO_REG_CLOCK_MEMORY, 0x000b }, +}; + +static struct glamo_script glamo_resume_script[] = { + { GLAMO_REG_IRQ_ENABLE, 0x01ff }, + { GLAMO_REG_CLOCK_GEN6, 0x2000 }, + { GLAMO_REG_CLOCK_GEN7, 0x0001 }, /* 0101 */ + { GLAMO_REG_CLOCK_GEN8, 0x0100 }, + { GLAMO_REG_CLOCK_HOST, 0x000d }, + { 0x200, 0x0ef0 }, + { 0x202, 0x07ff }, + { 0x212, 0x0000 }, + { 0x214, 0x4000 }, + { 0x216, 0xf00e }, + { GLAMO_REG_MEM_TYPE, 0x0874 }, /* 8MB, 16 word pg wr+rd */ + { GLAMO_REG_MEM_GEN, 0xafaf }, /* 63 grants min + max */ + + { GLAMO_REG_MEM_TIMING1, 0x0108 }, + { GLAMO_REG_MEM_TIMING2, 0x0010 }, /* Taa = 3 MCLK */ + { GLAMO_REG_MEM_TIMING3, 0x0000 }, + { GLAMO_REG_MEM_TIMING4, 0x0000 }, /* CE1# delay fall/rise */ + { GLAMO_REG_MEM_TIMING5, 0x0000 }, /* UB# LB# */ + { GLAMO_REG_MEM_TIMING6, 0x0000 }, /* OE# */ + { GLAMO_REG_MEM_TIMING7, 0x0000 }, /* WE# */ + { GLAMO_REG_MEM_TIMING8, 0x1002 }, /* MCLK delay, was 0x1000 */ + { GLAMO_REG_MEM_TIMING9, 0x6006 }, + { GLAMO_REG_MEM_TIMING10, 0x00ff }, + { GLAMO_REG_MEM_TIMING11, 0x0001 }, + { GLAMO_REG_MEM_POWER1, 0x0020 }, + { GLAMO_REG_MEM_POWER2, 0x0000 }, + { GLAMO_REG_MEM_DRAM1, 0x0000 }, + { 0xfffe, 1 }, + { GLAMO_REG_MEM_DRAM1, 0xc100 }, + { 0xfffe, 1 }, + { GLAMO_REG_MEM_DRAM1, 0xe100 }, + { GLAMO_REG_MEM_DRAM2, 0x01d6 }, + { GLAMO_REG_CLOCK_MEMORY, 0x000b }, +}; + +#if 0 /* MM370 */ +static const struct glamo_script regs_vram_2mb = { + { GLAMO_REG_CLOCK_MEMORY, 0x3aaa }, + { 0xfffe, 50 }, + { GLAMO_REG_CLOCK_MEMORY, 0x0aaa }, + { 0xfffe, 3 }, + { GLAMO_REG_MEM_POWER1, 0x0020 }, + { 0x033a, 0x0000 }, + { 0x033c, 0x0000 }, + { 0x033e, 0x0000 }, + { 0x0340, 0x0000 }, + { 0x0342, 0x0000 }, + { 0x0344, 0x0000 }, + { 0x0346, 0x0240 }, + { GLAMO_REG_MEM_TIMING8, 0x1016 }, + { GLAMO_REG_MEM_TIMING9, 0x6067 }, + { GLAMO_REG_MEM_TIMING10, 0x00ff }, + { GLAMO_REG_MEM_TIMING11, 0x0030 }, + { GLAMO_REG_MEM_GEN, 0x3fff }, + { GLAMO_REG_MEM_GEN, 0xafaf }, + { GLAMO_REG_MEM_TIMING1, 0x0108 }, + { GLAMO_REG_MEM_TIMING2, 0x0010 }, + { GLAMO_REG_MEM_DRAM1, 0x0a00 }, + { 0xfffe, 3 }, + { GLAMO_REG_MEM_DRAM1, 0xe200 }, + { 0xfffe, 1 }, +}; + +static const struct glamo_script regs_vram_8mb = { + { GLAMO_REG_CLOCK_MEMORY, 0x3aaa }, + { 0xfffe, 50 }, + { GLAMO_REG_CLOCK_MEMORY, 0x0aaa }, + { 0xfffe, 3 }, + { GLAMO_REG_MEM_POWER1, 0x0020 }, + { 0x033a, 0x45cf }, + { 0x033c, 0x4240 }, + { 0x033e, 0x53e0 }, + { 0x0340, 0x1401 }, + { 0x0342, 0x0c44 }, + { 0x0344, 0x1d0b }, + { 0x0346, 0x25ac }, + { 0x0348, 0x1953 }, + { 0xfffe, 1 }, + { GLAMO_REG_MEM_TYPE, 0x087a }, + { GLAMO_REG_MEM_DRAM2, 0x01d6 }, + { GLAMO_REG_MEM_TIMING8, 0x1060 }, + { GLAMO_REG_MEM_TIMING9, 0x6067 }, + { GLAMO_REG_MEM_TIMING10, 0x00ff }, + { GLAMO_REG_MEM_TIMING11, 0x0030 }, + { GLAMO_REG_MEM_GEN, 0x3fff }, + { GLAMO_REG_MEM_GEN, 0xafaf }, + { GLAMO_REG_MEM_TIMING1, 0x3108 }, + { GLAMO_REG_MEM_TIMING2, 0x0010 }, + { GLAMO_REG_MEM_DRAM1, 0x0a00 }, + { 0xfffe, 3 }, + { GLAMO_REG_MEM_DRAM1, 0xe200 }, + { 0xfffe, 1 }, +}; +#endif + +enum glamo_power { + GLAMO_POWER_ON, + GLAMO_POWER_STANDBY, + GLAMO_POWER_SUSPEND, +}; + +static void glamo_power(struct glamo_core *glamo, + enum glamo_power new_state) +{ + spin_lock(&glamo->lock); + + switch (new_state) { + case GLAMO_POWER_ON: + /* power up PLL1 and PLL2 */ + __reg_set_bit_mask(glamo, GLAMO_REG_DFT_GEN6, 0x0001, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 0x2000, 0x0000); + + /* spin until PLL1 and PLL2 lock */ + while ((__reg_read(glamo, GLAMO_REG_PLL_GEN5) & 3) != 3) + ; + + /* enable memory clock and get it out of deep pwrdown */ + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, + GLAMO_CLOCK_MEM_EN_MOCACLK, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM2, + GLAMO_MEM_DRAM2_DEEP_PWRDOWN, 0x0000); + __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM1, + GLAMO_MEM_DRAM1_SELF_REFRESH, 0x0000); + + glamo_run_script(glamo, glamo_resume_script, + ARRAY_SIZE(glamo_resume_script), 0); + + break; + case GLAMO_POWER_STANDBY: + /* enable memory self-refresh */ + __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM1, + GLAMO_MEM_DRAM1_SELF_REFRESH, 0xffff); + /* stop memory clock */ + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, + GLAMO_CLOCK_MEM_EN_MOCACLK, 0x0000); + /* power down PLL2 and then PLL1 */ + __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 0x2000, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_DFT_GEN5, 0x0001, 0xffff); + break; + case GLAMO_POWER_SUSPEND: + __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM2, + GLAMO_MEM_DRAM2_DEEP_PWRDOWN, 0xffff); + /* stop memory clock */ + __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, + GLAMO_CLOCK_MEM_EN_MOCACLK, 0x0000); + /* power down PLL2 and then PLL1 */ + __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 0x2000, 0xffff); + __reg_set_bit_mask(glamo, GLAMO_REG_DFT_GEN5, 0x0001, 0xffff); + break; + } + + spin_unlock(&glamo->lock); +} + +#if 0 +#define MEMDETECT_RETRY 6 +static unsigned int detect_memsize(struct glamo_core *glamo) +{ + int i; + + /*static const u_int16_t pattern[] = { + 0x1111, 0x8a8a, 0x2222, 0x7a7a, + 0x3333, 0x6a6a, 0x4444, 0x5a5a, + 0x5555, 0x4a4a, 0x6666, 0x3a3a, + 0x7777, 0x2a2a, 0x8888, 0x1a1a + }; */ + + for (i = 0; i < MEMDETECT_RETRY; i++) { + switch (glamo->type) { + case 3600: + __reg_write(glamo, GLAMO_REG_MEM_TYPE, 0x0072); + __reg_write(glamo, GLAMO_REG_MEM_DRAM1, 0xc100); + break; + case 3650: + switch (glamo->revision) { + case GLAMO_CORE_REV_A0: + if (i & 1) + __reg_write(glamo, GLAMO_REG_MEM_TYPE, + 0x097a); + else + __reg_write(glamo, GLAMO_REG_MEM_TYPE, + 0x0173); + + __reg_write(glamo, GLAMO_REG_MEM_DRAM1, 0x0000); + msleep(1); + __reg_write(glamo, GLAMO_REG_MEM_DRAM1, 0xc100); + break; + default: + if (i & 1) + __reg_write(glamo, GLAMO_REG_MEM_TYPE, + 0x0972); + else + __reg_write(glamo, GLAMO_REG_MEM_TYPE, + 0x0872); + + __reg_write(glamo, GLAMO_REG_MEM_DRAM1, 0x0000); + msleep(1); + __reg_write(glamo, GLAMO_REG_MEM_DRAM1, 0xe100); + break; + } + break; + case 3700: + /* FIXME */ + default: + break; + } + +#if 0 + /* FIXME: finish implementation */ + for (j = 0; j < 8; j++) { + __ +#endif + } + + return 0; +} +#endif + +/* Find out if we can support this version of the Glamo chip */ +static int glamo_supported(struct glamo_core *glamo) +{ + u_int16_t dev_id, rev_id; /*, memsize; */ + + dev_id = __reg_read(glamo, GLAMO_REG_DEVICE_ID); + rev_id = __reg_read(glamo, GLAMO_REG_REVISION_ID); + + switch (dev_id) { + case 0x3650: + switch (rev_id) { + case GLAMO_CORE_REV_A2: + break; + case GLAMO_CORE_REV_A0: + case GLAMO_CORE_REV_A1: + case GLAMO_CORE_REV_A3: + dev_warn(&glamo->pdev->dev, "untested core revision " + "%04x, your mileage may vary\n", rev_id); + break; + default: + dev_warn(&glamo->pdev->dev, "unknown glamo revision " + "%04x, your mileage may vary\n", rev_id); + /* maybe should abort ? */ + } + break; + case 0x3600: + case 0x3700: + default: + dev_err(&glamo->pdev->dev, "unsupported Glamo device %04x\n", + dev_id); + return 0; + } + + dev_info(&glamo->pdev->dev, "Detected Glamo core %04x Revision %04x " + "(%uHz CPU / %uHz Memory)\n", dev_id, rev_id, + glamo_pll_rate(glamo, GLAMO_PLL1), + glamo_pll_rate(glamo, GLAMO_PLL2)); + + return 1; +} + + +static int __init glamo_probe(struct platform_device *pdev) +{ + int rc, irq; + struct glamo_core *glamo; + + if (glamo_handle) { + dev_err(&pdev->dev, + "This driver supports only one instance\n"); + return -EBUSY; + } + + glamo = kmalloc(GFP_KERNEL, sizeof(*glamo)); + if (!glamo) + return -ENOMEM; + + spin_lock_init(&glamo->lock); + glamo_handle = glamo; + glamo->pdev = pdev; + glamo->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + glamo->irq = platform_get_irq(pdev, 0); + glamo->pdata = pdev->dev.platform_data; + if (!glamo->mem || !glamo->pdata) { + dev_err(&pdev->dev, "platform device with no MEM/PDATA ?\n"); + rc = -ENOENT; + goto out_free; + } + + /* register a number of sibling devices whoise IOMEM resources + * are siblings of pdev's IOMEM resource */ +#if 0 + glamo_core_dev.dev.parent = &pdev.dev; + mangle_mem_resources(glamo_core_dev.resources, + glamo_core_dev.num_resources, glamo->mem); + glamo_core_dev.resources[1].start = glamo->irq; + glamo_core_dev.resources[1].end = glamo->irq; + platform_device_register(&glamo_core_dev); +#endif + /* only remap the generic, hostbus and memory controller registers */ + glamo->base = ioremap(glamo->mem->start, GLAMO_REGOFS_VIDCAP); + if (!glamo->base) { + dev_err(&pdev->dev, "failed to ioremap() memory region\n"); + goto out_free; + } + + /* bring MCI specific stuff over from our MFD platform data */ + glamo_mci_def_pdata.glamo_set_mci_power = + glamo->pdata->glamo_set_mci_power; + glamo_mci_def_pdata.glamo_irq_is_wired = + glamo->pdata->glamo_irq_is_wired; + + glamo_mmc_dev.dev.parent = &pdev->dev; + /* we need it later to give to the engine enable and disable */ + glamo_mci_def_pdata.pglamo = glamo; + mangle_mem_resources(glamo_mmc_dev.resource, + glamo_mmc_dev.num_resources, glamo->mem); + platform_device_register(&glamo_mmc_dev); + + glamo_2d_dev.dev.parent = &pdev->dev; + mangle_mem_resources(glamo_2d_dev.resource, + glamo_2d_dev.num_resources, glamo->mem); + platform_device_register(&glamo_2d_dev); + + glamo_3d_dev.dev.parent = &pdev->dev; + mangle_mem_resources(glamo_3d_dev.resource, + glamo_3d_dev.num_resources, glamo->mem); + platform_device_register(&glamo_3d_dev); + + glamo_jpeg_dev.dev.parent = &pdev->dev; + mangle_mem_resources(glamo_jpeg_dev.resource, + glamo_jpeg_dev.num_resources, glamo->mem); + platform_device_register(&glamo_jpeg_dev); + + glamo_mpeg_dev.dev.parent = &pdev->dev; + mangle_mem_resources(glamo_mpeg_dev.resource, + glamo_mpeg_dev.num_resources, glamo->mem); + platform_device_register(&glamo_mpeg_dev); + + glamo->pdata->glamo = glamo; + glamo_fb_dev.dev.parent = &pdev->dev; + glamo_fb_dev.dev.platform_data = glamo->pdata; + mangle_mem_resources(glamo_fb_dev.resource, + glamo_fb_dev.num_resources, glamo->mem); + platform_device_register(&glamo_fb_dev); + + glamo->pdata->spigpio_info->glamo = glamo; + glamo_spigpio_dev.dev.parent = &pdev->dev; + glamo_spigpio_dev.dev.platform_data = glamo->pdata->spigpio_info; + platform_device_register(&glamo_spigpio_dev); + + /* only request the generic, hostbus and memory controller MMIO */ + glamo->mem = request_mem_region(glamo->mem->start, + GLAMO_REGOFS_VIDCAP, "glamo-core"); + if (!glamo->mem) { + dev_err(&pdev->dev, "failed to request memory region\n"); + goto out_free; + } + + if (!glamo_supported(glamo)) { + dev_err(&pdev->dev, "This Glamo is not supported\n"); + goto out_free; + } + + platform_set_drvdata(pdev, glamo); + + dev_dbg(&glamo->pdev->dev, "running init script\n"); + glamo_run_script(glamo, glamo_init_script, + ARRAY_SIZE(glamo_init_script), 1); + + dev_info(&glamo->pdev->dev, "Glamo core now %uHz CPU / %uHz Memory)\n", + glamo_pll_rate(glamo, GLAMO_PLL1), + glamo_pll_rate(glamo, GLAMO_PLL2)); + + for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) { + set_irq_chip(irq, &glamo_irq_chip); + set_irq_handler(irq, handle_level_irq); + set_irq_flags(irq, IRQF_VALID); + } + + if (glamo->pdata->glamo_irq_is_wired && + !glamo->pdata->glamo_irq_is_wired()) { + set_irq_chained_handler(glamo->irq, glamo_irq_demux_handler); + set_irq_type(glamo->irq, IRQT_FALLING); + glamo->irq_works = 1; + } else + glamo->irq_works = 0; + return 0; + +out_free: + glamo_handle = NULL; + kfree(glamo); + return rc; +} + +static int glamo_remove(struct platform_device *pdev) +{ + struct glamo_core *glamo = platform_get_drvdata(pdev); + int irq; + + disable_irq(glamo->irq); + set_irq_chained_handler(glamo->irq, NULL); + + for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) { + set_irq_flags(irq, 0); + set_irq_chip(irq, NULL); + } + + platform_set_drvdata(pdev, NULL); + platform_device_unregister(&glamo_fb_dev); + platform_device_unregister(&glamo_mmc_dev); + iounmap(glamo->base); + release_mem_region(glamo->mem->start, GLAMO_REGOFS_VIDCAP); + glamo_handle = NULL; + kfree(glamo); + + return 0; +} + +#ifdef CONFIG_PM +static int glamo_suspend(struct platform_device *pdev, pm_message_t state) +{ + return 0; +} + +static int glamo_resume(struct platform_device *pdev) +{ + return 0; +} +#else +#define glamo_suspend NULL +#define glamo_resume NULL +#endif + +static struct platform_driver glamo_driver = { + .probe = glamo_probe, + .remove = glamo_remove, + .suspend = glamo_suspend, + .resume = glamo_resume, + .driver = { + .name = "glamo3362", + .owner = THIS_MODULE, + }, +}; + +static int __devinit glamo_init(void) +{ + return platform_driver_register(&glamo_driver); +} + +static void __exit glamo_cleanup(void) +{ + platform_driver_unregister(&glamo_driver); +} + +module_init(glamo_init); +module_exit(glamo_cleanup); + +MODULE_AUTHOR("Harald Welte "); +MODULE_DESCRIPTION("Smedia Glamo 336x/337x core/resource driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h new file mode 100644 index 00000000000..cf89f032500 --- /dev/null +++ b/drivers/mfd/glamo/glamo-core.h @@ -0,0 +1,91 @@ +#ifndef __GLAMO_CORE_H +#define __GLAMO_CORE_H + +#include + + +/* for the time being, we put the on-screen framebuffer into the lowest + * VRAM space. This should make the code easily compatible with the various + * 2MB/4MB/8MB variants of the Smedia chips */ +#define GLAMO_OFFSET_VRAM 0x800000 +#define GLAMO_OFFSET_FB (GLAMO_OFFSET_VRAM) + +/* we only allocate the minimum possible size for the framebuffer to make + * sure we have sufficient memory for other functions of the chip */ +//#define GLAMO_FB_SIZE (640*480*4) /* == 0x12c000 */ +#define GLAMO_INTERNAL_RAM_SIZE 0x800000 +#define GLAMO_MMC_BUFFER_SIZE (64 * 1024) +#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE - GLAMO_MMC_BUFFER_SIZE) + + +struct glamo_core { + int irq; + int irq_works; /* 0 means PCB does not support Glamo IRQ */ + struct resource *mem; + struct resource *mem_core; + void __iomem *base; + struct platform_device *pdev; + struct glamofb_platform_data *pdata; + u_int16_t type; + u_int16_t revision; + spinlock_t lock; +}; + +struct glamo_script { + u_int16_t reg; + u_int16_t val; +}; + +int glamo_run_script(struct glamo_core *glamo, + struct glamo_script *script, int len, int may_sleep); + +enum glamo_engine { + GLAMO_ENGINE_CAPTURE, + GLAMO_ENGINE_ISP, + GLAMO_ENGINE_JPEG, + GLAMO_ENGINE_MPEG_ENC, + GLAMO_ENGINE_MPEG_DEC, + GLAMO_ENGINE_LCD, + GLAMO_ENGINE_CMDQ, + GLAMO_ENGINE_2D, + GLAMO_ENGINE_3D, + GLAMO_ENGINE_MMC, + GLAMO_ENGINE_MICROP0, + GLAMO_ENGINE_RISC, + GLAMO_ENGINE_MICROP1_MPEG_ENC, + GLAMO_ENGINE_MICROP1_MPEG_DEC, +#if 0 + GLAMO_ENGINE_H264_DEC, + GLAMO_ENGINE_RISC1, + GLAMO_ENGINE_SPI, +#endif + __NUM_GLAMO_ENGINES +}; + +struct glamo_mci_pdata { + struct glamo_core * pglamo; + unsigned int gpio_detect; + unsigned int gpio_wprotect; + unsigned long ocr_avail; + void (*glamo_set_mci_power)(unsigned char power_mode, + unsigned short vdd); + int (*glamo_irq_is_wired)(void); +}; + + +static inline void glamo_reg_access_delay(void) +{ + int n; + + for (n = 0; n != 2; n++) + nop(); +} + + +int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine); +int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine); +void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine); +int glamo_engine_reclock(struct glamo_core *glamo, + enum glamo_engine engine, int ps); + +#endif /* __GLAMO_CORE_H */ diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c new file mode 100644 index 00000000000..394a0add5cb --- /dev/null +++ b/drivers/mfd/glamo/glamo-fb.c @@ -0,0 +1,822 @@ +/* Smedia Glamo 336x/337x driver + * + * (C) 2007 by OpenMoko, Inc. + * Author: Harald Welte + * All rights reserved. + * + * 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 of + * the License, or (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#ifdef CONFIG_PM +#include +#endif + +#include + +#include "glamo-regs.h" +#include "glamo-core.h" + +#ifdef DEBUG +#define GLAMO_LOG(...) +#else +#define GLAMO_LOG(...) \ +do { \ + printk(KERN_DEBUG "in %s:%s:%d", __FILE__, __func__, __LINE__); \ + printk(KERN_DEBUG __VA_ARGS__); \ +} while (0); +#endif + + +#define RESSIZE(ressource) (((ressource)->end - (ressource)->start)+1) + +struct glamofb_handle { + struct fb_info *fb; + struct device *dev; + struct resource *reg; + struct resource *fb_res; + char __iomem *base; + struct glamofb_platform_data *mach_info; + char __iomem *cursor_addr; + u_int32_t pseudo_pal[16]; +}; + +/* 'sibling' spi device for lcm init */ +static struct platform_device glamo_spi_dev = { + .name = "glamo-lcm-spi", +}; + + +static int reg_read(struct glamofb_handle *glamo, + u_int16_t reg) +{ + glamo_reg_access_delay(); + return readw(glamo->base + reg); +} + +static void reg_write(struct glamofb_handle *glamo, + u_int16_t reg, u_int16_t val) +{ + glamo_reg_access_delay(); + writew(val, glamo->base + reg); +} + +static struct glamo_script glamo_regs[] = { + { GLAMO_REG_LCD_MODE1, 0x0020 }, + /* no display rotation, no hardware cursor, no dither, no gamma, + * no retrace flip, vsync low-active, hsync low active, + * no TVCLK, no partial display, hw dest color from fb, + * no partial display mode, LCD1, software flip, */ + { GLAMO_REG_LCD_MODE2, 0x1020 }, + /* no video flip, no ptr, no ptr, dhclk, + * normal mode, no cpuif, + * res, serial msb first, single fb, no fr ctrl, + * cpu if bits all zero, no crc + * 0000 0000 0010 0000 */ + { GLAMO_REG_LCD_MODE3, 0x0b40 }, + /* src data rgb565, res, 18bit rgb666 + * 000 01 011 0100 0000 */ + { GLAMO_REG_LCD_POLARITY, 0x440c }, + /* DE high active, no cpu/lcd if, cs0 force low, a0 low active, + * np cpu if, 9bit serial data, sclk rising edge latch data + * 01 00 0 100 0 000 01 0 0 */ + { GLAMO_REG_LCD_A_BASE1, 0x0000 }, /* display A base address 15:0 */ + { GLAMO_REG_LCD_A_BASE2, 0x0000 }, /* display A base address 22:16 */ +}; + +static int glamofb_run_script(struct glamofb_handle *glamo, + struct glamo_script *script, int len) +{ + int i; + + for (i = 0; i < len; i++) { + struct glamo_script *line = &script[i]; + + if (line->reg == 0xffff) + return 0; + else if (line->reg == 0xfffe) + msleep(line->val); + else + reg_write(glamo, script[i].reg, script[i].val); + } + + return 0; +} + +static int glamofb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct glamofb_handle *glamo = info->par; + + if (var->yres > glamo->mach_info->yres.max) + var->yres = glamo->mach_info->yres.max; + else if (var->yres < glamo->mach_info->yres.min) + var->yres = glamo->mach_info->yres.min; + + if (var->xres > glamo->mach_info->xres.max) + var->xres = glamo->mach_info->xres.max; + else if (var->xres < glamo->mach_info->xres.min) + var->xres = glamo->mach_info->xres.min; + + if (var->bits_per_pixel > glamo->mach_info->bpp.max) + var->bits_per_pixel = glamo->mach_info->bpp.max; + else if (var->bits_per_pixel < glamo->mach_info->bpp.min) + var->bits_per_pixel = glamo->mach_info->bpp.min; + + /* FIXME: set rgb positions */ + switch (var->bits_per_pixel) { + case 16: + switch (reg_read(glamo, GLAMO_REG_LCD_MODE3) & 0xc000) { + case GLAMO_LCD_SRC_RGB565: + var->red.offset = 11; + var->green.offset = 5; + var->blue.offset = 0; + var->red.length = 5; + var->green.length = 6; + var->blue.length = 5; + var->transp.length = 0; + break; + case GLAMO_LCD_SRC_ARGB1555: + var->transp.offset = 15; + var->red.offset = 10; + var->green.offset = 5; + var->blue.offset = 0; + var->transp.length = 1; + var->red.length = 5; + var->green.length = 5; + var->blue.length = 5; + break; + case GLAMO_LCD_SRC_ARGB4444: + var->transp.offset = 12; + var->red.offset = 8; + var->green.offset = 4; + var->blue.offset = 0; + var->transp.length = 4; + var->red.length = 4; + var->green.length = 4; + var->blue.length = 4; + break; + } + break; + case 24: + case 32: + default: + /* The Smedia Glamo doesn't support anything but 16bit color */ + printk(KERN_ERR + "Smedia driver does not [yet?] support 24/32bpp\n"); + return -EINVAL; + break; + } + + return 0; +} + +static void reg_set_bit_mask(struct glamofb_handle *glamo, + u_int16_t reg, u_int16_t mask, + u_int16_t val) +{ + u_int16_t tmp; + + val &= mask; + + tmp = reg_read(glamo, reg); + tmp &= ~mask; + tmp |= val; + reg_write(glamo, reg, tmp); +} + +#define GLAMO_LCD_WIDTH_MASK 0x03FF +#define GLAMO_LCD_HEIGHT_MASK 0x03FF +#define GLAMO_LCD_PITCH_MASK 0x07FE +#define GLAMO_LCD_HV_TOTAL_MASK 0x03FF +#define GLAMO_LCD_HV_RETR_START_MASK 0x03FF +#define GLAMO_LCD_HV_RETR_END_MASK 0x03FF +#define GLAMO_LCD_HV_RETR_DISP_START_MASK 0x03FF +#define GLAMO_LCD_HV_RETR_DISP_END_MASK 0x03FF + +enum orientation { + ORIENTATION_PORTRAIT, + ORIENTATION_LANDSCAPE +}; + + +static void rotate_lcd(struct glamofb_handle *glamo, + __u32 rotation) +{ + int glamo_rot; + + switch (rotation) { + case FB_ROTATE_UR: + glamo_rot = GLAMO_LCD_ROT_MODE_0; + break; + case FB_ROTATE_CW: + glamo_rot = GLAMO_LCD_ROT_MODE_90; + break; + case FB_ROTATE_UD: + glamo_rot = GLAMO_LCD_ROT_MODE_180; + break; + case FB_ROTATE_CCW: + glamo_rot = GLAMO_LCD_ROT_MODE_270; + break; + default: + glamo_rot = GLAMO_LCD_ROT_MODE_0; + break; + } + glamofb_cmd_mode(glamo, 1); + reg_set_bit_mask(glamo, + GLAMO_REG_LCD_WIDTH, + GLAMO_LCD_ROT_MODE_MASK, + glamo_rot); + reg_set_bit_mask(glamo, + GLAMO_REG_LCD_MODE1, + GLAMO_LCD_MODE1_ROTATE_EN, + (glamo_rot != GLAMO_LCD_ROT_MODE_0)? + GLAMO_LCD_MODE1_ROTATE_EN : 0); + glamofb_cmd_mode(glamo, 0); +} + +static enum orientation get_orientation(struct fb_var_screeninfo *var) +{ + GLAMO_LOG("mark\n") + if (var->xres <= var->yres) { + GLAMO_LOG("portrait\n") + return ORIENTATION_PORTRAIT; + } + GLAMO_LOG("landscape\n") + return ORIENTATION_LANDSCAPE; +} + +static int will_orientation_change(struct fb_var_screeninfo *var) +{ + enum orientation orient = get_orientation(var); + switch (orient) { + case ORIENTATION_LANDSCAPE: + if (var->rotate == FB_ROTATE_UR || var->rotate == FB_ROTATE_UD) + return 1; + break; + case ORIENTATION_PORTRAIT: + if (var->rotate == FB_ROTATE_CW || var->rotate == FB_ROTATE_CCW) + return 1; + break; + } + return 0; +} + +static void glamofb_update_lcd_controller(struct glamofb_handle *glamo, + struct fb_var_screeninfo *var) +{ + int sync, bp, disp, fp, total, xres, yres, pitch, orientation_changing; + + GLAMO_LOG("enter: glamo:%#x, var:%#x\n", (unsigned)glamo, (unsigned)var); + if (!glamo || !var) + return; + + glamofb_cmd_mode(glamo, 1); + + if (var->pixclock) + glamo_engine_reclock(glamo->mach_info->glamo, + GLAMO_ENGINE_LCD, + var->pixclock); + + xres = var->xres; + yres = var->yres; + GLAMO_LOG("xres:%d, yres:%d, rotate:%d\n", xres, yres, var->rotate); + + /* + * figure out if orientation is going to change + */ + orientation_changing = will_orientation_change(var); + GLAMO_LOG("orientation_changing:%d\n", orientation_changing); + + /* + * adjust the pitch according to new orientation to come + */ + if (orientation_changing) { + pitch = var->yres * var->bits_per_pixel / 8; + } else { + pitch = var->xres * var->bits_per_pixel / 8; + } + GLAMO_LOG("pitch:%d\n", pitch); + + /* + * set the awaiten LCD geometry + */ + reg_set_bit_mask(glamo, + GLAMO_REG_LCD_WIDTH, + GLAMO_LCD_WIDTH_MASK, + xres); + reg_set_bit_mask(glamo, + GLAMO_REG_LCD_HEIGHT, + GLAMO_LCD_HEIGHT_MASK, + yres); + reg_set_bit_mask(glamo, + GLAMO_REG_LCD_PITCH, + GLAMO_LCD_PITCH_MASK, + pitch); + + GLAMO_LOG("mark:\n"); + /* + * honour the rotation request + */ + rotate_lcd(glamo, var->rotate); + + /* + * update the reported geometry + * of the framebuffer. + */ + if (orientation_changing) { + var->xres_virtual = var->xres = yres; + var->yres_virtual = var->yres = xres; + } else { + var->xres_virtual = var->xres = xres; + var->yres_virtual = var->yres = yres; + } + + GLAMO_LOG("reported res:(%d,%d)\n", var->xres, var->yres); + /* + * update scannout timings + */ + sync = 0; + bp = sync + var->hsync_len; + disp = bp + var->left_margin; + fp = disp + xres; + total = fp + var->right_margin; + + reg_set_bit_mask(glamo, GLAMO_REG_LCD_HORIZ_TOTAL, + GLAMO_LCD_HV_TOTAL_MASK, total); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_HORIZ_RETR_START, + GLAMO_LCD_HV_RETR_START_MASK, sync); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_HORIZ_RETR_END, + GLAMO_LCD_HV_RETR_END_MASK, bp); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_HORIZ_DISP_START, + GLAMO_LCD_HV_RETR_DISP_START_MASK, disp); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_HORIZ_DISP_END, + GLAMO_LCD_HV_RETR_DISP_END_MASK, fp); + + GLAMO_LOG("mark:\n"); + + sync = 0; + bp = sync + var->vsync_len; + disp = bp + var->upper_margin; + fp = disp + yres; + total = fp + var->lower_margin; + + reg_set_bit_mask(glamo, GLAMO_REG_LCD_VERT_TOTAL, + GLAMO_LCD_HV_TOTAL_MASK, total); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_VERT_RETR_START, + GLAMO_LCD_HV_RETR_START_MASK, sync); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_VERT_RETR_END, + GLAMO_LCD_HV_RETR_END_MASK, bp); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_VERT_DISP_START, + GLAMO_LCD_HV_RETR_DISP_START_MASK, disp); + reg_set_bit_mask(glamo, GLAMO_REG_LCD_VERT_DISP_END, + GLAMO_LCD_HV_RETR_DISP_END_MASK, fp); + + GLAMO_LOG("mark:\n"); + glamofb_cmd_mode(glamo, 0); + + GLAMO_LOG("leave:\n"); +} + +static int glamofb_set_par(struct fb_info *info) +{ + struct glamofb_handle *glamo = info->par; + struct fb_var_screeninfo *var = &info->var; + + switch (var->bits_per_pixel) { + case 16: + info->fix.visual = FB_VISUAL_TRUECOLOR; + break; + default: + printk("Smedia driver doesn't support != 16bpp\n"); + return -EINVAL; + } + + info->fix.line_length = (var->xres * var->bits_per_pixel) / 8; + + glamofb_update_lcd_controller(glamo, var); + + return 0; +} + +static int glamofb_blank(int blank_mode, struct fb_info *info) +{ + /* FIXME */ + return 0; +} + +static inline unsigned int chan_to_field(unsigned int chan, struct fb_bitfield *bf) +{ + chan &= 0xffff; + chan >>= 16 - bf->length; + return chan << bf->offset; +} + +static int glamofb_setcolreg(unsigned regno, + unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + struct glamofb_handle *glamo = info->par; + unsigned int val; + + switch (glamo->fb->fix.visual) { + case FB_VISUAL_TRUECOLOR: + case FB_VISUAL_DIRECTCOLOR: + /* true-colour, use pseuo-palette */ + + if (regno < 16) { + u32 *pal = glamo->fb->pseudo_palette; + + val = chan_to_field(red, &glamo->fb->var.red); + val |= chan_to_field(green, &glamo->fb->var.green); + val |= chan_to_field(blue, &glamo->fb->var.blue); + + pal[regno] = val; + }; + break; + default: + return 1; /* unknown type */ + } + + return 0; +} + +static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor) +{ + struct glamofb_handle *glamo = info->par; + u_int16_t reg; + + if (cursor->image.depth > 2) + return -EINVAL; + + reg = reg_read(glamo, GLAMO_REG_LCD_MODE1); + + if (cursor->enable) + reg_write(glamo, GLAMO_REG_LCD_MODE1, + reg | GLAMO_LCD_MODE1_CURSOR_EN); + else + reg_write(glamo, GLAMO_REG_LCD_MODE1, + reg & ~GLAMO_LCD_MODE1_CURSOR_EN); + + if (cursor->set & FB_CUR_SETPOS) { + reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_POS, + cursor->image.dx); + reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_POS, + cursor->image.dy); + } + + if (cursor->set & FB_CUR_SETCMAP) { + /* FIXME */ + } + + if (cursor->set & FB_CUR_SETSIZE || + cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) { + int x, y, op; + const unsigned char *pcol = cursor->image.data; + const unsigned char *pmsk = cursor->mask; + void __iomem *dst = glamo->cursor_addr; + unsigned char dcol = 0; + unsigned char dmsk = 0; + + reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE, + cursor->image.width); + reg_write(glamo, GLAMO_REG_LCD_CURSOR_PITCH, + cursor->image.width * 2); + reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE, + cursor->image.height); + + for (op = 0; op < (cursor->image.width * + cursor->image.height * 2)/8; op += 4) + writel(0x0, dst + op); + + for (y = 0; y < cursor->image.height; y++) { + for (x = 0; x < cursor->image.width; x++) { + if ((x % 8) == 0) { + dcol = *pcol++; + dmsk = *pmsk++; + } else { + dcol >>= 1; + dmsk >>= 1; + } + + if (dmsk & 1) { + unsigned int op; + + op = (dcol & 1) ? 1 : 3; + op <<= ((x % 4) * 2); + + op |= readb(dst + (x / 4)); + writeb(op, dst + (x / 4)); + } + } + } + } +} + +static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb) +{ + return reg_read(gfb, GLAMO_REG_LCD_STATUS1) & (1 << 15); +} + +void glamofb_cmd_mode(struct glamofb_handle *gfb, int on) +{ + dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on); + if (on) { + dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ", + __FUNCTION__); + while (!glamofb_cmdq_empty(gfb)) + yield(); + dev_dbg(gfb->dev, "empty!\n"); + + /* display the entire frame then switch to command */ + reg_write(gfb, GLAMO_REG_LCD_COMMAND1, + GLAMO_LCD_CMD_TYPE_DISP | + GLAMO_LCD_CMD_DATA_FIRE_VSYNC); + + /* wait until LCD is idle */ + dev_dbg(gfb->dev, "waiting for LCD idle: "); + while (!reg_read(gfb, GLAMO_REG_LCD_STATUS2) & (1 << 12)) + yield(); + dev_dbg(gfb->dev, "idle!\n"); + + msleep(90); + } else { + /* RGB interface needs vsync/hsync */ + if (reg_read(gfb, GLAMO_REG_LCD_MODE3) & GLAMO_LCD_MODE3_RGB) + reg_write(gfb, GLAMO_REG_LCD_COMMAND1, + GLAMO_LCD_CMD_TYPE_DISP | + GLAMO_LCD_CMD_DATA_DISP_SYNC); + + reg_write(gfb, GLAMO_REG_LCD_COMMAND1, + GLAMO_LCD_CMD_TYPE_DISP | + GLAMO_LCD_CMD_DATA_DISP_FIRE); + } +} +EXPORT_SYMBOL_GPL(glamofb_cmd_mode); + +int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val) +{ + dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n", + __FUNCTION__); + while (!glamofb_cmdq_empty(gfb)) + yield(); + dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val); + + reg_write(gfb, GLAMO_REG_LCD_COMMAND1, val); + + return 0; +} +EXPORT_SYMBOL_GPL(glamofb_cmd_write); + +static struct fb_ops glamofb_ops = { + .owner = THIS_MODULE, + .fb_check_var = glamofb_check_var, + .fb_set_par = glamofb_set_par, + .fb_blank = glamofb_blank, + .fb_setcolreg = glamofb_setcolreg, + //.fb_cursor = glamofb_cursor, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static int glamofb_init_regs(struct glamofb_handle *glamo) +{ + struct fb_info *info = glamo->fb; + + glamofb_check_var(&info->var, info); + glamofb_run_script(glamo, glamo_regs, ARRAY_SIZE(glamo_regs)); + glamofb_set_par(info); + + return 0; +} + +static int __init glamofb_probe(struct platform_device *pdev) +{ + int rc = -EIO; + struct fb_info *fbinfo; + struct glamofb_handle *glamofb; + struct glamofb_platform_data *mach_info = pdev->dev.platform_data; + + printk(KERN_INFO "SMEDIA Glamo frame buffer driver (C) 2007 " + "OpenMoko, Inc.\n"); + + fbinfo = framebuffer_alloc(sizeof(struct glamofb_handle), &pdev->dev); + if (!fbinfo) + return -ENOMEM; + + glamofb = fbinfo->par; + glamofb->fb = fbinfo; + glamofb->dev = &pdev->dev; + + strcpy(fbinfo->fix.id, "SMedia Glamo"); + + glamofb->reg = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "glamo-fb-regs"); + if (!glamofb->reg) { + dev_err(&pdev->dev, "platform device with no registers?\n"); + rc = -ENOENT; + goto out_free; + } + + glamofb->fb_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "glamo-fb-mem"); + if (!glamofb->fb_res) { + dev_err(&pdev->dev, "platform device with no memory ?\n"); + rc = -ENOENT; + goto out_free; + } + + glamofb->reg = request_mem_region(glamofb->reg->start, + RESSIZE(glamofb->reg), pdev->name); + if (!glamofb->reg) { + dev_err(&pdev->dev, "failed to request mmio region\n"); + goto out_free; + } + + glamofb->fb_res = request_mem_region(glamofb->fb_res->start, + mach_info->fb_mem_size, + pdev->name); + if (!glamofb->fb_res) { + dev_err(&pdev->dev, "failed to request vram region\n"); + goto out_release_reg; + } + + /* we want to remap only the registers required for this core + * driver. */ + glamofb->base = ioremap(glamofb->reg->start, RESSIZE(glamofb->reg)); + if (!glamofb->base) { + dev_err(&pdev->dev, "failed to ioremap() mmio memory\n"); + goto out_release_fb; + } + fbinfo->fix.smem_start = (unsigned long) glamofb->fb_res->start; + fbinfo->fix.smem_len = mach_info->fb_mem_size; + + fbinfo->screen_base = ioremap(glamofb->fb_res->start, + RESSIZE(glamofb->fb_res)); + if (!fbinfo->screen_base) { + dev_err(&pdev->dev, "failed to ioremap() vram memory\n"); + goto out_release_fb; + } + + platform_set_drvdata(pdev, fbinfo); + + glamofb->mach_info = pdev->dev.platform_data; + + fbinfo->fix.visual = FB_VISUAL_TRUECOLOR; + fbinfo->fix.type = FB_TYPE_PACKED_PIXELS; + fbinfo->fix.type_aux = 0; + fbinfo->fix.xpanstep = 0; + fbinfo->fix.ypanstep = 0; + fbinfo->fix.ywrapstep = 0; + fbinfo->fix.accel = FB_ACCEL_NONE; /* FIXME */ + + fbinfo->var.nonstd = 0; + fbinfo->var.activate = FB_ACTIVATE_NOW; + fbinfo->var.height = mach_info->height; + fbinfo->var.width = mach_info->width; + fbinfo->var.accel_flags = 0; + fbinfo->var.vmode = FB_VMODE_NONINTERLACED; + + fbinfo->fbops = &glamofb_ops; + fbinfo->flags = FBINFO_FLAG_DEFAULT; + fbinfo->pseudo_palette = &glamofb->pseudo_pal; + + fbinfo->var.xres = mach_info->xres.defval; + fbinfo->var.xres_virtual = mach_info->xres.defval; + fbinfo->var.yres = mach_info->yres.defval; + fbinfo->var.yres_virtual = mach_info->yres.defval; + fbinfo->var.bits_per_pixel = mach_info->bpp.defval; + + fbinfo->var.pixclock = mach_info->pixclock; + fbinfo->var.left_margin = mach_info->left_margin; + fbinfo->var.right_margin = mach_info->right_margin; + fbinfo->var.upper_margin = mach_info->upper_margin; + fbinfo->var.lower_margin = mach_info->lower_margin; + fbinfo->var.hsync_len = mach_info->hsync_len; + fbinfo->var.vsync_len = mach_info->vsync_len; + + memset(fbinfo->screen_base, 0, fbinfo->fix.smem_len); + + glamo_engine_enable(mach_info->glamo, GLAMO_ENGINE_LCD); + glamo_engine_reset(mach_info->glamo, GLAMO_ENGINE_LCD); + glamofb_init_regs(glamofb); + + rc = register_framebuffer(fbinfo); + if (rc < 0) { + dev_err(&pdev->dev, "failed to register framebuffer\n"); + goto out_unmap_fb; + } + + if (mach_info->spi_info) { + /* register the sibling spi device */ + mach_info->spi_info->glamofb_handle = glamofb; + glamo_spi_dev.dev.parent = &pdev->dev; + glamo_spi_dev.dev.platform_data = mach_info->spi_info; + platform_device_register(&glamo_spi_dev); + } + + printk(KERN_INFO "fb%d: %s frame buffer device\n", + fbinfo->node, fbinfo->fix.id); + + return 0; + +out_unmap_fb: + iounmap(fbinfo->screen_base); + iounmap(glamofb->base); +out_release_fb: + release_mem_region(glamofb->fb_res->start, RESSIZE(glamofb->fb_res)); +out_release_reg: + release_mem_region(glamofb->reg->start, RESSIZE(glamofb->reg)); +out_free: + framebuffer_release(fbinfo); + return rc; +} + +static int glamofb_remove(struct platform_device *pdev) +{ + struct glamofb_handle *glamofb = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + iounmap(glamofb->base); + release_mem_region(glamofb->reg->start, RESSIZE(glamofb->reg)); + kfree(glamofb); + + return 0; +} + +#ifdef CONFIG_PM +static int glamofb_suspend(struct platform_device *pdev, pm_message_t state) +{ + return 0; +} + +static int glamofb_resume(struct platform_device *pdev) +{ + return 0; +} +#else +#define glamofb_suspend NULL +#define glamofb_resume NULL +#endif + +static struct platform_driver glamofb_driver = { + .probe = glamofb_probe, + .remove = glamofb_remove, + .suspend = glamofb_suspend, + .resume = glamofb_resume, + .driver = { + .name = "glamo-fb", + .owner = THIS_MODULE, + }, +}; + +static int __devinit glamofb_init(void) +{ + return platform_driver_register(&glamofb_driver); +} + +static void __exit glamofb_cleanup(void) +{ + platform_driver_unregister(&glamofb_driver); +} + +module_init(glamofb_init); +module_exit(glamofb_cleanup); + +MODULE_AUTHOR("Harald Welte "); +MODULE_DESCRIPTION("Smedia Glamo 336x/337x framebuffer driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/glamo/glamo-gpio.c b/drivers/mfd/glamo/glamo-gpio.c new file mode 100644 index 00000000000..45d0bf91268 --- /dev/null +++ b/drivers/mfd/glamo/glamo-gpio.c @@ -0,0 +1,62 @@ + +#include +#include +#include +#include + +#include + +#include "glamo-core.h" +#include "glamo-regs.h" + +void glamo_gpio_setpin(struct glamo_core *glamo, unsigned int pin, + unsigned int value) +{ + unsigned int reg = REG_OF_GPIO(pin); + u_int16_t tmp; + + spin_lock(&glamo->lock); + tmp = readw(glamo->base + reg); + if (value) + tmp |= OUTPUT_BIT(pin); + else + tmp &= ~OUTPUT_BIT(pin); + writew(tmp, glamo->base + reg); + spin_unlock(&glamo->lock); +} +EXPORT_SYMBOL(glamo_gpio_setpin); + +int glamo_gpio_getpin(struct glamo_core *glamo, unsigned int pin) +{ + return readw(REG_OF_GPIO(pin)) & INPUT_BIT(pin) ? 1 : 0; +} +EXPORT_SYMBOL(glamo_gpio_getpin); + +void glamo_gpio_cfgpin(struct glamo_core *glamo, unsigned int pinfunc) +{ + unsigned int reg = REG_OF_GPIO(pinfunc); + u_int16_t tmp; + + spin_lock(&glamo->lock); + tmp = readw(glamo->base + reg); + + if ((pinfunc & 0x00f0) == GLAMO_GPIO_F_FUNC) { + /* pin is a function pin: clear gpio bit */ + tmp &= ~FUNC_BIT(pinfunc); + } else { + /* pin is gpio: set gpio bit */ + tmp |= FUNC_BIT(pinfunc); + + if (pinfunc & GLAMO_GPIO_F_IN) { + /* gpio input: set bit to disable output mode */ + tmp |= GPIO_OUT_BIT(pinfunc); + } else if (pinfunc & GLAMO_GPIO_F_OUT) { + /* gpio output: clear bit to enable output mode */ + tmp &= ~GPIO_OUT_BIT(pinfunc); + } + } + writew(tmp, glamo->base + reg); + spin_unlock(&glamo->lock); +} +EXPORT_SYMBOL(glamo_gpio_cfgpin); + diff --git a/drivers/mfd/glamo/glamo-lcm-spi.c b/drivers/mfd/glamo/glamo-lcm-spi.c new file mode 100644 index 00000000000..92cabe4dbb0 --- /dev/null +++ b/drivers/mfd/glamo/glamo-lcm-spi.c @@ -0,0 +1,241 @@ +/* + * Copyright (C) 2007 OpenMoko, Inc. + * Author: Harald Welte + * + * Smedia Glamo GPIO based SPI driver + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This driver currently only implements a minimum subset of the hardware + * features, esp. those features that are required to drive the jbt6k74 + * LCM controller asic in the TD028TTEC1 LCM. + * +*/ + +#define DEBUG + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include + +#include "glamo-core.h" +#include "glamo-regs.h" + +struct glamo_spi { + struct spi_bitbang bitbang; + struct spi_master *master; + struct glamo_spi_info *info; + struct device *dev; +}; + +static inline struct glamo_spi *to_gs(struct spi_device *spi) +{ + return spi->controller_data; +} + +static int glamo_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t) +{ + struct glamo_spi *gs = to_gs(spi); + unsigned int bpw; + + bpw = t ? t->bits_per_word : spi->bits_per_word; + + if (bpw != 9 && bpw != 8) { + dev_err(&spi->dev, "invalid bits-per-word (%d)\n", bpw); + return -EINVAL; + } + + return 0; +} + +static void glamo_spi_chipsel(struct spi_device *spi, int value) +{ +#if 0 + struct glamo_spi *gs = to_gs(spi); + + dev_dbg(&spi->dev, "chipsel %d: spi=%p, gs=%p, info=%p, handle=%p\n", + value, spi, gs, gs->info, gs->info->glamofb_handle); + + glamofb_cmd_mode(gs->info->glamofb_handle, value); +#endif +} + +static int glamo_spi_txrx(struct spi_device *spi, struct spi_transfer *t) +{ + struct glamo_spi *gs = to_gs(spi); + const u_int16_t *ui16 = (const u_int16_t *) t->tx_buf; + u_int16_t nine_bits; + int i; + + dev_dbg(&spi->dev, "txrx: tx %p, rx %p, bpw %d, len %d\n", + t->tx_buf, t->rx_buf, t->bits_per_word, t->len); + + if (spi->bits_per_word == 9) + nine_bits = (1 << 9); + else + nine_bits = 0; + + if (t->len > 3 * sizeof(u_int16_t)) { + dev_err(&spi->dev, "this driver doesn't support " + "%u sized xfers\n", t->len); + return -EINVAL; + } + + for (i = 0; i < t->len/sizeof(u_int16_t); i++) { + /* actually transfer the data */ +#if 1 + glamofb_cmd_write(gs->info->glamofb_handle, + GLAMO_LCD_CMD_TYPE_SERIAL | nine_bits | + (1 << 10) | (1 << 11) | (ui16[i] & 0x1ff)); +#endif + /* FIXME: fire ?!? */ + if (i == 0 && (ui16[i] & 0x1ff) == 0x29) { + dev_dbg(&spi->dev, "leaving command mode\n"); + glamofb_cmd_mode(gs->info->glamofb_handle, 0); + } + } + + return t->len; +} + +static int glamo_spi_setup(struct spi_device *spi) +{ + int ret; + + if (!spi->bits_per_word) + spi->bits_per_word = 9; + + /* FIXME: hardware can do this */ + if (spi->mode & SPI_LSB_FIRST) + return -EINVAL; + + ret = glamo_spi_setupxfer(spi, NULL); + if (ret < 0) { + dev_err(&spi->dev, "setupxfer returned %d\n", ret); + return ret; + } + + dev_dbg(&spi->dev, "%s: mode %d, %u bpw\n", + __FUNCTION__, spi->mode, spi->bits_per_word); + + return 0; +} + +static int glamo_spi_probe(struct platform_device *pdev) +{ + struct spi_master *master; + struct glamo_spi *sp; + int ret; + int i; + + master = spi_alloc_master(&pdev->dev, sizeof(struct glamo_spi)); + if (master == NULL) { + dev_err(&pdev->dev, "failed to allocate spi master\n"); + ret = -ENOMEM; + goto err; + } + + sp = spi_master_get_devdata(master); + memset(sp, 0, sizeof(struct glamo_spi)); + + sp->master = spi_master_get(master); + sp->info = pdev->dev.platform_data; + if (!sp->info) { + dev_err(&pdev->dev, "can't operate without platform data\n"); + ret = -EIO; + goto err_no_pdev; + } + dev_dbg(&pdev->dev, "sp->info(pdata) = %p\n", sp->info); + + sp->dev = &pdev->dev; + + platform_set_drvdata(pdev, sp); + + sp->bitbang.master = sp->master; + sp->bitbang.setup_transfer = glamo_spi_setupxfer; + sp->bitbang.chipselect = glamo_spi_chipsel; + sp->bitbang.txrx_bufs = glamo_spi_txrx; + sp->bitbang.master->setup = glamo_spi_setup; + + ret = spi_bitbang_start(&sp->bitbang); + if (ret) + goto err_no_bitbang; + + /* register the chips to go with the board */ + + glamofb_cmd_mode(sp->info->glamofb_handle, 1); + + for (i = 0; i < sp->info->board_size; i++) { + dev_info(&pdev->dev, "registering %p: %s\n", + &sp->info->board_info[i], + sp->info->board_info[i].modalias); + + sp->info->board_info[i].controller_data = sp; + spi_new_device(master, sp->info->board_info + i); + } + + return 0; + +err_no_bitbang: + platform_set_drvdata(pdev, NULL); +err_no_pdev: + spi_master_put(sp->bitbang.master); +err: + return ret; + +} + +static int glamo_spi_remove(struct platform_device *pdev) +{ + struct glamo_spi *sp = platform_get_drvdata(pdev); + + spi_bitbang_stop(&sp->bitbang); + spi_master_put(sp->bitbang.master); + + return 0; +} + +#define glamo_spi_suspend NULL +#define glamo_spi_resume NULL + +static struct platform_driver glamo_spi_drv = { + .probe = glamo_spi_probe, + .remove = glamo_spi_remove, + .suspend = glamo_spi_suspend, + .resume = glamo_spi_resume, + .driver = { + .name = "glamo-lcm-spi", + .owner = THIS_MODULE, + }, +}; + +static int __init glamo_spi_init(void) +{ + return platform_driver_register(&glamo_spi_drv); +} + +static void __exit glamo_spi_exit(void) +{ + platform_driver_unregister(&glamo_spi_drv); +} + +module_init(glamo_spi_init); +module_exit(glamo_spi_exit); + +MODULE_DESCRIPTION("Smedia Glamo 336x/337x LCM serial command SPI Driver"); +MODULE_AUTHOR("Harald Welte ") +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/glamo/glamo-regs.h b/drivers/mfd/glamo/glamo-regs.h new file mode 100644 index 00000000000..151cd66aa23 --- /dev/null +++ b/drivers/mfd/glamo/glamo-regs.h @@ -0,0 +1,477 @@ +#ifndef _GLAMO_REGS_H +#define _GLAMO_REGS_H + +/* Smedia Glamo 336x/337x driver + * + * (C) 2007 by OpenMoko, Inc. + * Author: Harald Welte + * All rights reserved. + * + * 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 of + * the License, or (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +enum glamo_regster_offsets { + GLAMO_REGOFS_GENERIC = 0x0000, + GLAMO_REGOFS_HOSTBUS = 0x0200, + GLAMO_REGOFS_MEMORY = 0x0300, + GLAMO_REGOFS_VIDCAP = 0x0400, + GLAMO_REGOFS_ISP = 0x0500, + GLAMO_REGOFS_JPEG = 0x0800, + GLAMO_REGOFS_MPEG = 0x0c00, + GLAMO_REGOFS_LCD = 0x1100, + GLAMO_REGOFS_MMC = 0x1400, + GLAMO_REGOFS_MPROC0 = 0x1500, + GLAMO_REGOFS_MPROC1 = 0x1580, + GLAMO_REGOFS_CMDQUEUE = 0x1600, + GLAMO_REGOFS_RISC = 0x1680, + GLAMO_REGOFS_2D = 0x1700, + GLAMO_REGOFS_3D = 0x1b00, + GLAMO_REGOFS_END = 0x2400, +}; + + +enum glamo_register_generic { + GLAMO_REG_GCONF1 = 0x0000, + GLAMO_REG_GCONF2 = 0x0002, +#define GLAMO_REG_DEVICE_ID GLAMO_REG_GCONF2 + GLAMO_REG_GCONF3 = 0x0004, +#define GLAMO_REG_REVISION_ID GLAMO_REG_GCONF3 + GLAMO_REG_IRQ_GEN1 = 0x0006, +#define GLAMO_REG_IRQ_ENABLE GLAMO_REG_IRQ_GEN1 + GLAMO_REG_IRQ_GEN2 = 0x0008, +#define GLAMO_REG_IRQ_SET GLAMO_REG_IRQ_GEN2 + GLAMO_REG_IRQ_GEN3 = 0x000a, +#define GLAMO_REG_IRQ_CLEAR GLAMO_REG_IRQ_GEN3 + GLAMO_REG_IRQ_GEN4 = 0x000c, +#define GLAMO_REG_IRQ_STATUS GLAMO_REG_IRQ_GEN4 + GLAMO_REG_CLOCK_HOST = 0x0010, + GLAMO_REG_CLOCK_MEMORY = 0x0012, + GLAMO_REG_CLOCK_LCD = 0x0014, + GLAMO_REG_CLOCK_MMC = 0x0016, + GLAMO_REG_CLOCK_ISP = 0x0018, + GLAMO_REG_CLOCK_JPEG = 0x001a, + GLAMO_REG_CLOCK_3D = 0x001c, + GLAMO_REG_CLOCK_2D = 0x001e, + GLAMO_REG_CLOCK_RISC1 = 0x0020, /* 3365 only? */ + GLAMO_REG_CLOCK_RISC2 = 0x0022, /* 3365 only? */ + GLAMO_REG_CLOCK_MPEG = 0x0024, + GLAMO_REG_CLOCK_MPROC = 0x0026, + + GLAMO_REG_CLOCK_GEN5_1 = 0x0030, + GLAMO_REG_CLOCK_GEN5_2 = 0x0032, + GLAMO_REG_CLOCK_GEN6 = 0x0034, + GLAMO_REG_CLOCK_GEN7 = 0x0036, + GLAMO_REG_CLOCK_GEN8 = 0x0038, + GLAMO_REG_CLOCK_GEN9 = 0x003a, + GLAMO_REG_CLOCK_GEN10 = 0x003c, + GLAMO_REG_CLOCK_GEN11 = 0x003e, + GLAMO_REG_PLL_GEN1 = 0x0040, + GLAMO_REG_PLL_GEN2 = 0x0042, + GLAMO_REG_PLL_GEN3 = 0x0044, + GLAMO_REG_PLL_GEN4 = 0x0046, + GLAMO_REG_PLL_GEN5 = 0x0048, + GLAMO_REG_GPIO_GEN1 = 0x0050, + GLAMO_REG_GPIO_GEN2 = 0x0052, + GLAMO_REG_GPIO_GEN3 = 0x0054, + GLAMO_REG_GPIO_GEN4 = 0x0056, + GLAMO_REG_GPIO_GEN5 = 0x0058, + GLAMO_REG_GPIO_GEN6 = 0x005a, + GLAMO_REG_GPIO_GEN7 = 0x005c, + GLAMO_REG_GPIO_GEN8 = 0x005e, + GLAMO_REG_GPIO_GEN9 = 0x0060, + GLAMO_REG_GPIO_GEN10 = 0x0062, + GLAMO_REG_DFT_GEN1 = 0x0070, + GLAMO_REG_DFT_GEN2 = 0x0072, + GLAMO_REG_DFT_GEN3 = 0x0074, + GLAMO_REG_DFT_GEN4 = 0x0076, + + GLAMO_REG_DFT_GEN5 = 0x01e0, + GLAMO_REG_DFT_GEN6 = 0x01f0, +}; + +#define GLAMO_REG_HOSTBUS(x) (GLAMO_REGOFS_HOSTBUS-2+(x*2)) + +#define REG_MEM(x) (GLAMO_REGOFS_MEMORY+(x)) +#define GLAMO_REG_MEM_TIMING(x) (GLAMO_REG_MEM_TIMING1-2+(x*2)) + +enum glamo_register_mem { + GLAMO_REG_MEM_TYPE = REG_MEM(0x00), + GLAMO_REG_MEM_GEN = REG_MEM(0x02), + GLAMO_REG_MEM_TIMING1 = REG_MEM(0x04), + GLAMO_REG_MEM_TIMING2 = REG_MEM(0x06), + GLAMO_REG_MEM_TIMING3 = REG_MEM(0x08), + GLAMO_REG_MEM_TIMING4 = REG_MEM(0x0a), + GLAMO_REG_MEM_TIMING5 = REG_MEM(0x0c), + GLAMO_REG_MEM_TIMING6 = REG_MEM(0x0e), + GLAMO_REG_MEM_TIMING7 = REG_MEM(0x10), + GLAMO_REG_MEM_TIMING8 = REG_MEM(0x12), + GLAMO_REG_MEM_TIMING9 = REG_MEM(0x14), + GLAMO_REG_MEM_TIMING10 = REG_MEM(0x16), + GLAMO_REG_MEM_TIMING11 = REG_MEM(0x18), + GLAMO_REG_MEM_POWER1 = REG_MEM(0x1a), + GLAMO_REG_MEM_POWER2 = REG_MEM(0x1c), + GLAMO_REG_MEM_LCD_BUF1 = REG_MEM(0x1e), + GLAMO_REG_MEM_LCD_BUF2 = REG_MEM(0x20), + GLAMO_REG_MEM_LCD_BUF3 = REG_MEM(0x22), + GLAMO_REG_MEM_LCD_BUF4 = REG_MEM(0x24), + GLAMO_REG_MEM_BIST1 = REG_MEM(0x26), + GLAMO_REG_MEM_BIST2 = REG_MEM(0x28), + GLAMO_REG_MEM_BIST3 = REG_MEM(0x2a), + GLAMO_REG_MEM_BIST4 = REG_MEM(0x2c), + GLAMO_REG_MEM_BIST5 = REG_MEM(0x2e), + GLAMO_REG_MEM_MAH1 = REG_MEM(0x30), + GLAMO_REG_MEM_MAH2 = REG_MEM(0x32), + GLAMO_REG_MEM_DRAM1 = REG_MEM(0x34), + GLAMO_REG_MEM_DRAM2 = REG_MEM(0x36), + GLAMO_REG_MEM_CRC = REG_MEM(0x38), +}; + +#define GLAMO_MEM_TYPE_MASK 0x03 + +enum glamo_reg_mem_dram1 { + GLAMO_MEM_DRAM1_EN_SDRAM_CLK = (1 << 11), + GLAMO_MEM_DRAM1_SELF_REFRESH = (1 << 12), +}; + +enum glamo_reg_mem_dram2 { + GLAMO_MEM_DRAM2_DEEP_PWRDOWN = (1 << 12), +}; + +enum glamo_irq { + GLAMO_IRQ_HOSTBUS = 0x0001, + GLAMO_IRQ_JPEG = 0x0002, + GLAMO_IRQ_MPEG = 0x0004, + GLAMO_IRQ_MPROC1 = 0x0008, + GLAMO_IRQ_MPROC0 = 0x0010, + GLAMO_IRQ_CMDQUEUE = 0x0020, + GLAMO_IRQ_2D = 0x0040, + GLAMO_IRQ_MMC = 0x0080, + GLAMO_IRQ_RISC = 0x0100, +}; + +enum glamo_reg_clock_host { + GLAMO_CLOCK_HOST_DG_BCLK = 0x0001, + GLAMO_CLOCK_HOST_DG_M0CLK = 0x0004, + GLAMO_CLOCK_HOST_RESET = 0x1000, +}; + +enum glamo_reg_clock_mem { + GLAMO_CLOCK_MEM_DG_M1CLK = 0x0001, + GLAMO_CLOCK_MEM_EN_M1CLK = 0x0002, + GLAMO_CLOCK_MEM_DG_MOCACLK = 0x0004, + GLAMO_CLOCK_MEM_EN_MOCACLK = 0x0008, + GLAMO_CLOCK_MEM_RESET = 0x1000, + GLAMO_CLOCK_MOCA_RESET = 0x2000, +}; + +enum glamo_reg_clock_lcd { + GLAMO_CLOCK_LCD_DG_DCLK = 0x0001, + GLAMO_CLOCK_LCD_EN_DCLK = 0x0002, + GLAMO_CLOCK_LCD_DG_DMCLK = 0x0004, + GLAMO_CLOCK_LCD_EN_DMCLK = 0x0008, + // + GLAMO_CLOCK_LCD_EN_DHCLK = 0x0020, + GLAMO_CLOCK_LCD_DG_M5CLK = 0x0040, + GLAMO_CLOCK_LCD_EN_M5CLK = 0x0080, + GLAMO_CLOCK_LCD_RESET = 0x1000, +}; + +enum glamo_reg_clock_mmc { + GLAMO_CLOCK_MMC_DG_TCLK = 0x0001, + GLAMO_CLOCK_MMC_EN_TCLK = 0x0002, + GLAMO_CLOCK_MMC_DG_M9CLK = 0x0004, + GLAMO_CLOCK_MMC_EN_M9CLK = 0x0008, + GLAMO_CLOCK_MMC_RESET = 0x1000, +}; + +enum glamo_reg_clock_isp { + GLAMO_CLOCK_ISP_DG_I1CLK = 0x0001, + GLAMO_CLOCK_ISP_EN_I1CLK = 0x0002, + GLAMO_CLOCK_ISP_DG_CCLK = 0x0004, + GLAMO_CLOCK_ISP_EN_CCLK = 0x0008, + // + GLAMO_CLOCK_ISP_EN_SCLK = 0x0020, + GLAMO_CLOCK_ISP_DG_M2CLK = 0x0040, + GLAMO_CLOCK_ISP_EN_M2CLK = 0x0080, + GLAMO_CLOCK_ISP_DG_M15CLK = 0x0100, + GLAMO_CLOCK_ISP_EN_M15CLK = 0x0200, + GLAMO_CLOCK_ISP1_RESET = 0x1000, + GLAMO_CLOCK_ISP2_RESET = 0x2000, +}; + +enum glamo_reg_clock_jpeg { + GLAMO_CLOCK_JPEG_DG_JCLK = 0x0001, + GLAMO_CLOCK_JPEG_EN_JCLK = 0x0002, + GLAMO_CLOCK_JPEG_DG_M3CLK = 0x0004, + GLAMO_CLOCK_JPEG_EN_M3CLK = 0x0008, + GLAMO_CLOCK_JPEG_RESET = 0x1000, +}; + +enum glamo_reg_clock_2d { + GLAMO_CLOCK_2D_DG_GCLK = 0x0001, + GLAMO_CLOCK_2D_EN_GCLK = 0x0002, + GLAMO_CLOCK_2D_DG_M7CLK = 0x0004, + GLAMO_CLOCK_2D_EN_M7CLK = 0x0008, + GLAMO_CLOCK_2D_DG_M6CLK = 0x0010, + GLAMO_CLOCK_2D_EN_M6CLK = 0x0020, + GLAMO_CLOCK_2D_RESET = 0x1000, + GLAMO_CLOCK_2D_CQ_RESET = 0x2000, +}; + +enum glamo_reg_clock_3d { + GLAMO_CLOCK_3D_DG_ECLK = 0x0001, + GLAMO_CLOCK_3D_EN_ECLK = 0x0002, + GLAMO_CLOCK_3D_DG_RCLK = 0x0004, + GLAMO_CLOCK_3D_EN_RCLK = 0x0008, + GLAMO_CLOCK_3D_DG_M8CLK = 0x0010, + GLAMO_CLOCK_3D_EN_M8CLK = 0x0020, + GLAMO_CLOCK_3D_BACK_RESET = 0x1000, + GLAMO_CLOCK_3D_FRONT_RESET = 0x2000, +}; + +enum glamo_reg_clock_mpeg { + GLAMO_CLOCK_MPEG_DG_X0CLK = 0x0001, + GLAMO_CLOCK_MPEG_EN_X0CLK = 0x0002, + GLAMO_CLOCK_MPEG_DG_X1CLK = 0x0004, + GLAMO_CLOCK_MPEG_EN_X1CLK = 0x0008, + GLAMO_CLOCK_MPEG_DG_X2CLK = 0x0010, + GLAMO_CLOCK_MPEG_EN_X2CLK = 0x0020, + GLAMO_CLOCK_MPEG_DG_X3CLK = 0x0040, + GLAMO_CLOCK_MPEG_EN_X3CLK = 0x0080, + GLAMO_CLOCK_MPEG_DG_X4CLK = 0x0100, + GLAMO_CLOCK_MPEG_EN_X4CLK = 0x0200, + GLAMO_CLOCK_MPEG_DG_X6CLK = 0x0400, + GLAMO_CLOCK_MPEG_EN_X6CLK = 0x0800, + GLAMO_CLOCK_MPEG_ENC_RESET = 0x1000, + GLAMO_CLOCK_MPEG_DEC_RESET = 0x2000, +}; + +enum glamo_reg_clock51 { + GLAMO_CLOCK_GEN51_EN_DIV_MCLK = 0x0001, + GLAMO_CLOCK_GEN51_EN_DIV_SCLK = 0x0002, + GLAMO_CLOCK_GEN51_EN_DIV_JCLK = 0x0004, + GLAMO_CLOCK_GEN51_EN_DIV_DCLK = 0x0008, + GLAMO_CLOCK_GEN51_EN_DIV_DMCLK = 0x0010, + GLAMO_CLOCK_GEN51_EN_DIV_DHCLK = 0x0020, + GLAMO_CLOCK_GEN51_EN_DIV_GCLK = 0x0040, + GLAMO_CLOCK_GEN51_EN_DIV_TCLK = 0x0080, + /* FIXME: higher bits */ +}; + +enum glamo_reg_hostbus2 { + GLAMO_HOSTBUS2_MMIO_EN_ISP = 0x0001, + GLAMO_HOSTBUS2_MMIO_EN_JPEG = 0x0002, + GLAMO_HOSTBUS2_MMIO_EN_MPEG = 0x0004, + GLAMO_HOSTBUS2_MMIO_EN_LCD = 0x0008, + GLAMO_HOSTBUS2_MMIO_EN_MMC = 0x0010, + GLAMO_HOSTBUS2_MMIO_EN_MICROP0 = 0x0020, + GLAMO_HOSTBUS2_MMIO_EN_MICROP1 = 0x0040, + GLAMO_HOSTBUS2_MMIO_EN_CQ = 0x0080, + GLAMO_HOSTBUS2_MMIO_EN_RISC = 0x0100, + GLAMO_HOSTBUS2_MMIO_EN_2D = 0x0200, + GLAMO_HOSTBUS2_MMIO_EN_3D = 0x0400, +}; + +/* LCD Controller */ + +#define REG_LCD(x) (x) +enum glamo_reg_lcd { + GLAMO_REG_LCD_MODE1 = REG_LCD(0x00), + GLAMO_REG_LCD_MODE2 = REG_LCD(0x02), + GLAMO_REG_LCD_MODE3 = REG_LCD(0x04), + GLAMO_REG_LCD_WIDTH = REG_LCD(0x06), + GLAMO_REG_LCD_HEIGHT = REG_LCD(0x08), + GLAMO_REG_LCD_POLARITY = REG_LCD(0x0a), + GLAMO_REG_LCD_A_BASE1 = REG_LCD(0x0c), + GLAMO_REG_LCD_A_BASE2 = REG_LCD(0x0e), + GLAMO_REG_LCD_B_BASE1 = REG_LCD(0x10), + GLAMO_REG_LCD_B_BASE2 = REG_LCD(0x12), + GLAMO_REG_LCD_C_BASE1 = REG_LCD(0x14), + GLAMO_REG_LCD_C_BASE2 = REG_LCD(0x16), + GLAMO_REG_LCD_PITCH = REG_LCD(0x18), + /* RES */ + GLAMO_REG_LCD_HORIZ_TOTAL = REG_LCD(0x1c), + /* RES */ + GLAMO_REG_LCD_HORIZ_RETR_START = REG_LCD(0x20), + /* RES */ + GLAMO_REG_LCD_HORIZ_RETR_END = REG_LCD(0x24), + /* RES */ + GLAMO_REG_LCD_HORIZ_DISP_START = REG_LCD(0x28), + /* RES */ + GLAMO_REG_LCD_HORIZ_DISP_END = REG_LCD(0x2c), + /* RES */ + GLAMO_REG_LCD_VERT_TOTAL = REG_LCD(0x30), + /* RES */ + GLAMO_REG_LCD_VERT_RETR_START = REG_LCD(0x34), + /* RES */ + GLAMO_REG_LCD_VERT_RETR_END = REG_LCD(0x38), + /* RES */ + GLAMO_REG_LCD_VERT_DISP_START = REG_LCD(0x3c), + /* RES */ + GLAMO_REG_LCD_VERT_DISP_END = REG_LCD(0x40), + /* RES */ + GLAMO_REG_LCD_POL = REG_LCD(0x44), + GLAMO_REG_LCD_DATA_START = REG_LCD(0x46), + GLAMO_REG_LCD_FRATE_CONTRO = REG_LCD(0x48), + GLAMO_REG_LCD_DATA_CMD_HDR = REG_LCD(0x4a), + GLAMO_REG_LCD_SP_START = REG_LCD(0x4c), + GLAMO_REG_LCD_SP_END = REG_LCD(0x4e), + GLAMO_REG_LCD_CURSOR_BASE1 = REG_LCD(0x50), + GLAMO_REG_LCD_CURSOR_BASE2 = REG_LCD(0x52), + GLAMO_REG_LCD_CURSOR_PITCH = REG_LCD(0x54), + GLAMO_REG_LCD_CURSOR_X_SIZE = REG_LCD(0x56), + GLAMO_REG_LCD_CURSOR_Y_SIZE = REG_LCD(0x58), + GLAMO_REG_LCD_CURSOR_X_POS = REG_LCD(0x5a), + GLAMO_REG_LCD_CURSOR_Y_POS = REG_LCD(0x5c), + GLAMO_REG_LCD_CURSOR_PRESET = REG_LCD(0x5e), + GLAMO_REG_LCD_CURSOR_FG_COLOR = REG_LCD(0x60), + /* RES */ + GLAMO_REG_LCD_CURSOR_BG_COLOR = REG_LCD(0x64), + /* RES */ + GLAMO_REG_LCD_CURSOR_DST_COLOR = REG_LCD(0x68), + /* RES */ + GLAMO_REG_LCD_STATUS1 = REG_LCD(0x80), + GLAMO_REG_LCD_STATUS2 = REG_LCD(0x82), + GLAMO_REG_LCD_STATUS3 = REG_LCD(0x84), + GLAMO_REG_LCD_STATUS4 = REG_LCD(0x86), + /* RES */ + GLAMO_REG_LCD_COMMAND1 = REG_LCD(0xa0), + GLAMO_REG_LCD_COMMAND2 = REG_LCD(0xa2), + /* RES */ + GLAMO_REG_LCD_WFORM_DELAY1 = REG_LCD(0xb0), + GLAMO_REG_LCD_WFORM_DELAY2 = REG_LCD(0xb2), + /* RES */ + GLAMO_REG_LCD_GAMMA_CORR = REG_LCD(0x100), + /* RES */ + GLAMO_REG_LCD_GAMMA_R_ENTRY01 = REG_LCD(0x110), + GLAMO_REG_LCD_GAMMA_R_ENTRY23 = REG_LCD(0x112), + GLAMO_REG_LCD_GAMMA_R_ENTRY45 = REG_LCD(0x114), + GLAMO_REG_LCD_GAMMA_R_ENTRY67 = REG_LCD(0x116), + GLAMO_REG_LCD_GAMMA_R_ENTRY8 = REG_LCD(0x118), + /* RES */ + GLAMO_REG_LCD_GAMMA_G_ENTRY01 = REG_LCD(0x130), + GLAMO_REG_LCD_GAMMA_G_ENTRY23 = REG_LCD(0x132), + GLAMO_REG_LCD_GAMMA_G_ENTRY45 = REG_LCD(0x134), + GLAMO_REG_LCD_GAMMA_G_ENTRY67 = REG_LCD(0x136), + GLAMO_REG_LCD_GAMMA_G_ENTRY8 = REG_LCD(0x138), + /* RES */ + GLAMO_REG_LCD_GAMMA_B_ENTRY01 = REG_LCD(0x150), + GLAMO_REG_LCD_GAMMA_B_ENTRY23 = REG_LCD(0x152), + GLAMO_REG_LCD_GAMMA_B_ENTRY45 = REG_LCD(0x154), + GLAMO_REG_LCD_GAMMA_B_ENTRY67 = REG_LCD(0x156), + GLAMO_REG_LCD_GAMMA_B_ENTRY8 = REG_LCD(0x158), + /* RES */ + GLAMO_REG_LCD_SRAM_DRIVING1 = REG_LCD(0x160), + GLAMO_REG_LCD_SRAM_DRIVING2 = REG_LCD(0x162), + GLAMO_REG_LCD_SRAM_DRIVING3 = REG_LCD(0x164), +}; + +enum glamo_reg_lcd_mode1 { + GLAMO_LCD_MODE1_PWRSAVE = 0x0001, + GLAMO_LCD_MODE1_PARTIAL_PRT = 0x0002, + GLAMO_LCD_MODE1_HWFLIP = 0x0004, + GLAMO_LCD_MODE1_LCD2 = 0x0008, + /* RES */ + GLAMO_LCD_MODE1_PARTIAL_MODE = 0x0020, + GLAMO_LCD_MODE1_CURSOR_DSTCOLOR = 0x0040, + GLAMO_LCD_MODE1_PARTIAL_ENABLE = 0x0080, + GLAMO_LCD_MODE1_TVCLK_IN_ENABLE = 0x0100, + GLAMO_LCD_MODE1_HSYNC_HIGH_ACT = 0x0200, + GLAMO_LCD_MODE1_VSYNC_HIGH_ACT = 0x0400, + GLAMO_LCD_MODE1_HSYNC_FLIP = 0x0800, + GLAMO_LCD_MODE1_GAMMA_COR_EN = 0x1000, + GLAMO_LCD_MODE1_DITHER_EN = 0x2000, + GLAMO_LCD_MODE1_CURSOR_EN = 0x4000, + GLAMO_LCD_MODE1_ROTATE_EN = 0x8000, +}; + +enum glamo_reg_lcd_mode2 { + GLAMO_LCD_MODE2_CRC_CHECK_EN = 0x0001, + GLAMO_LCD_MODE2_DCMD_PER_LINE = 0x0002, + GLAMO_LCD_MODE2_NOUSE_BDEF = 0x0004, + GLAMO_LCD_MODE2_OUT_POS_MODE = 0x0008, + GLAMO_LCD_MODE2_FRATE_CTRL_EN = 0x0010, + GLAMO_LCD_MODE2_SINGLE_BUFFER = 0x0020, + GLAMO_LCD_MODE2_SER_LSB_TO_MSB = 0x0040, + /* FIXME */ +}; + +enum glamo_reg_lcd_mode3 { + /* LCD color source data format */ + GLAMO_LCD_SRC_RGB565 = 0x0000, + GLAMO_LCD_SRC_ARGB1555 = 0x4000, + GLAMO_LCD_SRC_ARGB4444 = 0x8000, + /* interface type */ + GLAMO_LCD_MODE3_LCD = 0x1000, + GLAMO_LCD_MODE3_RGB = 0x0800, + GLAMO_LCD_MODE3_CPU = 0x0000, + /* mode */ + GLAMO_LCD_MODE3_RGB332 = 0x0000, + GLAMO_LCD_MODE3_RGB444 = 0x0100, + GLAMO_LCD_MODE3_RGB565 = 0x0200, + GLAMO_LCD_MODE3_RGB666 = 0x0300, + /* depth */ + GLAMO_LCD_MODE3_6BITS = 0x0000, + GLAMO_LCD_MODE3_8BITS = 0x0010, + GLAMO_LCD_MODE3_9BITS = 0x0020, + GLAMO_LCD_MODE3_16BITS = 0x0030, + GLAMO_LCD_MODE3_18BITS = 0x0040, +}; + +enum glamo_lcd_rot_mode { + GLAMO_LCD_ROT_MODE_0 = 0x0000, + GLAMO_LCD_ROT_MODE_180 = 0x2000, + GLAMO_LCD_ROT_MODE_MIRROR = 0x4000, + GLAMO_LCD_ROT_MODE_FLIP = 0x6000, + GLAMO_LCD_ROT_MODE_90 = 0x8000, + GLAMO_LCD_ROT_MODE_270 = 0xa000, +}; +#define GLAMO_LCD_ROT_MODE_MASK 0xe000 + +enum glamo_lcd_cmd_type { + GLAMO_LCD_CMD_TYPE_DISP = 0x0000, + GLAMO_LCD_CMD_TYPE_PARALLEL = 0x4000, + GLAMO_LCD_CMD_TYPE_SERIAL = 0x8000, + GLAMO_LCD_CMD_TYPE_SERIAL_DIRECT= 0xc000, +}; +#define GLAMO_LCD_CMD_TYPE_MASK 0xc000 + +enum glamo_lcd_cmds { + GLAMO_LCD_CMD_DATA_DISP_FIRE = 0x00, + GLAMO_LCD_CMD_DATA_DISP_SYNC = 0x01, /* RGB only */ + /* switch to command mode, no display */ + GLAMO_LCD_CMD_DATA_FIRE_NO_DISP = 0x02, + /* display until VSYNC, switch to command */ + GLAMO_LCD_CMD_DATA_FIRE_VSYNC = 0x11, + /* display until HSYNC, switch to command */ + GLAMO_LCD_CMD_DATA_FIRE_HSYNC = 0x12, + /* display until VSYNC, 1 black frame, VSYNC, switch to command */ + GLAMO_LCD_CMD_DATA_FIRE_VSYNC_B = 0x13, + /* don't care about display and switch to command */ + GLAMO_LCD_CMD_DATA_FIRE_FREE = 0x14, /* RGB only */ + /* don't care about display, keep data display but disable data, + * and switch to command */ + GLAMO_LCD_CMD_DATA_FIRE_FREE_D = 0x15, /* RGB only */ +}; + +enum glamo_core_revisions { + GLAMO_CORE_REV_A0 = 0x0000, + GLAMO_CORE_REV_A1 = 0x0001, + GLAMO_CORE_REV_A2 = 0x0002, + GLAMO_CORE_REV_A3 = 0x0003, +}; + +#endif /* _GLAMO_REGS_H */ diff --git a/drivers/mfd/glamo/glamo-spi-gpio.c b/drivers/mfd/glamo/glamo-spi-gpio.c new file mode 100644 index 00000000000..73926bd22a4 --- /dev/null +++ b/drivers/mfd/glamo/glamo-spi-gpio.c @@ -0,0 +1,256 @@ +/* + * Copyright (C) 2007 OpenMoko, Inc. + * Author: Harald Welte + * + * Smedia Glamo GPIO based SPI driver + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This driver currently only implements a minimum subset of the hardware + * features, esp. those features that are required to drive the jbt6k74 + * LCM controller asic in the TD028TTEC1 LCM. + * +*/ + +#define DEBUG + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include + +#include "glamo-core.h" +#include "glamo-regs.h" + +struct glamo_spigpio { + struct spi_bitbang bitbang; + struct spi_master *master; + struct glamo_spigpio_info *info; + struct glamo_core *glamo; +}; + +static inline struct glamo_spigpio *to_sg(struct spi_device *spi) +{ + return spi->controller_data; +} + +static inline void setsck(struct spi_device *dev, int on) +{ + struct glamo_spigpio *sg = to_sg(dev); + glamo_gpio_setpin(sg->glamo, sg->info->pin_clk, on ? 1 : 0); +} + +static inline void setmosi(struct spi_device *dev, int on) +{ + struct glamo_spigpio *sg = to_sg(dev); + glamo_gpio_setpin(sg->glamo, sg->info->pin_mosi, on ? 1 : 0); +} + +static inline u32 getmiso(struct spi_device *dev) +{ + struct glamo_spigpio *sg = to_sg(dev); + if (sg->info->pin_miso) + return glamo_gpio_getpin(sg->glamo, sg->info->pin_miso) ? 1 : 0; + else + return 0; +} + +#define spidelay(x) ndelay(x) + +#define EXPAND_BITBANG_TXRX +#include + +static u32 glamo_spigpio_txrx_mode0(struct spi_device *spi, + unsigned nsecs, u32 word, u8 bits) +{ + return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits); +} + +static u32 glamo_spigpio_txrx_mode1(struct spi_device *spi, + unsigned nsecs, u32 word, u8 bits) +{ + return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits); +} + +static u32 glamo_spigpio_txrx_mode2(struct spi_device *spi, + unsigned nsecs, u32 word, u8 bits) +{ + return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits); +} + +static u32 glamo_spigpio_txrx_mode3(struct spi_device *spi, + unsigned nsecs, u32 word, u8 bits) +{ + return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits); +} + + +#if 0 +static int glamo_spigpio_setupxfer(struct spi_device *spi, + struct spi_transfer *t) +{ + struct glamo_spi *gs = to_sg(spi); + unsigned int bpw; + + bpw = t ? t->bits_per_word : spi->bits_per_word; + + if (bpw != 9 && bpw != 8) { + dev_err(&spi->dev, "invalid bits-per-word (%d)\n", bpw); + return -EINVAL; + } + + return 0; +} +#endif + +static void glamo_spigpio_chipsel(struct spi_device *spi, int value) +{ + struct glamo_spigpio *gs = to_sg(spi); +#if 0 + dev_dbg(&spi->dev, "chipsel %d: spi=%p, gs=%p, info=%p, handle=%p\n", + value, spi, gs, gs->info, gs->info->glamo); +#endif + glamo_gpio_setpin(gs->glamo, gs->info->pin_cs, value ? 0 : 1); +} + + +static int glamo_spigpio_probe(struct platform_device *pdev) +{ + struct spi_master *master; + struct glamo_spigpio *sp; + int ret; + int i; + + master = spi_alloc_master(&pdev->dev, sizeof(struct glamo_spigpio)); + if (master == NULL) { + dev_err(&pdev->dev, "failed to allocate spi master\n"); + ret = -ENOMEM; + goto err; + } + + sp = spi_master_get_devdata(master); + platform_set_drvdata(pdev, sp); + sp->info = pdev->dev.platform_data; + if (!sp->info) { + dev_err(&pdev->dev, "can't operate without platform data\n"); + ret = -EIO; + goto err_no_pdev; + } + + master->num_chipselect = 1; + master->bus_num = 2; /* FIXME: use dynamic number */ + + sp->master = spi_master_get(master); + sp->glamo = sp->info->glamo; + + sp->bitbang.master = sp->master; + sp->bitbang.chipselect = glamo_spigpio_chipsel; + sp->bitbang.txrx_word[SPI_MODE_0] = glamo_spigpio_txrx_mode0; + sp->bitbang.txrx_word[SPI_MODE_1] = glamo_spigpio_txrx_mode1; + sp->bitbang.txrx_word[SPI_MODE_2] = glamo_spigpio_txrx_mode2; + sp->bitbang.txrx_word[SPI_MODE_3] = glamo_spigpio_txrx_mode3; + + /* set state of spi pins */ + glamo_gpio_setpin(sp->glamo, sp->info->pin_clk, 0); + glamo_gpio_setpin(sp->glamo, sp->info->pin_mosi, 0); + glamo_gpio_setpin(sp->glamo, sp->info->pin_cs, 1); + + glamo_gpio_cfgpin(sp->glamo, sp->info->pin_clk); + glamo_gpio_cfgpin(sp->glamo, sp->info->pin_mosi); + glamo_gpio_cfgpin(sp->glamo, sp->info->pin_cs); + if (sp->info->pin_miso) + glamo_gpio_cfgpin(sp->glamo, sp->info->pin_miso); + + /* bring the LCM panel out of reset if it isn't already */ + + glamo_gpio_setpin(sp->glamo, GLAMO_GPIO4, 1); + glamo_gpio_cfgpin(sp->glamo, GLAMO_GPIO4_OUTPUT); + msleep(90); + +#if 0 + sp->dev = &pdev->dev; + + sp->bitbang.setup_transfer = glamo_spi_setupxfer; + sp->bitbang.txrx_bufs = glamo_spi_txrx; + sp->bitbang.master->setup = glamo_spi_setup; +#endif + + ret = spi_bitbang_start(&sp->bitbang); + if (ret) + goto err_no_bitbang; + + /* register the chips to go with the board */ + + for (i = 0; i < sp->info->board_size; i++) { + dev_info(&pdev->dev, "registering %p: %s\n", + &sp->info->board_info[i], + sp->info->board_info[i].modalias); + + sp->info->board_info[i].controller_data = sp; + spi_new_device(master, sp->info->board_info + i); + } + + return 0; + +err_no_bitbang: + platform_set_drvdata(pdev, NULL); +err_no_pdev: + spi_master_put(sp->bitbang.master); +err: + return ret; + +} + +static int glamo_spigpio_remove(struct platform_device *pdev) +{ + struct glamo_spigpio *sp = platform_get_drvdata(pdev); + + spi_bitbang_stop(&sp->bitbang); + spi_master_put(sp->bitbang.master); + + return 0; +} + +#define glamo_spigpio_suspend NULL +#define glamo_spigpio_resume NULL + +static struct platform_driver glamo_spi_drv = { + .probe = glamo_spigpio_probe, + .remove = glamo_spigpio_remove, + .suspend = glamo_spigpio_suspend, + .resume = glamo_spigpio_resume, + .driver = { + .name = "glamo-spi-gpio", + .owner = THIS_MODULE, + }, +}; + +static int __init glamo_spi_init(void) +{ + return platform_driver_register(&glamo_spi_drv); +} + +static void __exit glamo_spi_exit(void) +{ + platform_driver_unregister(&glamo_spi_drv); +} + +module_init(glamo_spi_init); +module_exit(glamo_spi_exit); + +MODULE_DESCRIPTION("Smedia Glamo 336x/337x LCM serial command SPI Driver"); +MODULE_AUTHOR("Harald Welte ") +MODULE_LICENSE("GPL"); -- cgit v1.2.3