diff options
| -rw-r--r-- | drivers/video/broadsheetfb.c | 110 | ||||
| -rw-r--r-- | include/video/broadsheetfb.h | 17 |
2 files changed, 107 insertions, 20 deletions
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c index 8f011062dec..57dc1a0065c 100644 --- a/drivers/video/broadsheetfb.c +++ b/drivers/video/broadsheetfb.c @@ -115,30 +115,30 @@ static struct fb_var_screeninfo broadsheetfb_var __devinitdata = { }; /* main broadsheetfb functions */ -static void broadsheet_issue_data(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_issue_data(struct broadsheetfb_par *par, u16 data) { par->board->set_ctl(par, BS_WR, 0); par->board->set_hdb(par, data); par->board->set_ctl(par, BS_WR, 1); } -static void broadsheet_issue_cmd(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_issue_cmd(struct broadsheetfb_par *par, u16 data) { par->board->set_ctl(par, BS_DC, 0); - broadsheet_issue_data(par, data); + broadsheet_gpio_issue_data(par, data); } -static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_send_command(struct broadsheetfb_par *par, u16 data) { par->board->wait_for_rdy(par); par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, data); + broadsheet_gpio_issue_cmd(par, data); par->board->set_ctl(par, BS_DC, 1); par->board->set_ctl(par, BS_CS, 1); } -static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, +static void broadsheet_gpio_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, int argc, u16 *argv) { int i; @@ -146,15 +146,43 @@ static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, par->board->wait_for_rdy(par); par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, cmd); + broadsheet_gpio_issue_cmd(par, cmd); par->board->set_ctl(par, BS_DC, 1); for (i = 0; i < argc; i++) - broadsheet_issue_data(par, argv[i]); + broadsheet_gpio_issue_data(par, argv[i]); par->board->set_ctl(par, BS_CS, 1); } -static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, +static void broadsheet_mmio_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, + int argc, u16 *argv) +{ + int i; + + par->board->mmio_write(par, BS_MMIO_CMD, cmd); + + for (i = 0; i < argc; i++) + par->board->mmio_write(par, BS_MMIO_DATA, argv[i]); +} + +static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data) +{ + if (par->board->mmio_write) + par->board->mmio_write(par, BS_MMIO_CMD, data); + else + broadsheet_gpio_send_command(par, data); +} + +static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, + int argc, u16 *argv) +{ + if (par->board->mmio_write) + broadsheet_mmio_send_cmdargs(par, cmd, argc, argv); + else + broadsheet_gpio_send_cmdargs(par, cmd, argc, argv); +} + +static void broadsheet_gpio_burst_write(struct broadsheetfb_par *par, int size, u16 *data) { int i; @@ -174,7 +202,30 @@ static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, par->board->set_ctl(par, BS_CS, 1); } -static u16 broadsheet_get_data(struct broadsheetfb_par *par) +static void broadsheet_mmio_burst_write(struct broadsheetfb_par *par, int size, + u16 *data) +{ + int i; + u16 tmp; + + for (i = 0; i < size; i++) { + tmp = (data[i] & 0x0F) << 4; + tmp |= (data[i] & 0x0F00) << 4; + par->board->mmio_write(par, BS_MMIO_DATA, tmp); + } + +} + +static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, + u16 *data) +{ + if (par->board->mmio_write) + broadsheet_mmio_burst_write(par, size, data); + else + broadsheet_gpio_burst_write(par, size, data); +} + +static u16 broadsheet_gpio_get_data(struct broadsheetfb_par *par) { u16 res; /* wait for ready to go hi. (lo is busy) */ @@ -194,7 +245,16 @@ static u16 broadsheet_get_data(struct broadsheetfb_par *par) return res; } -static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, + +static u16 broadsheet_get_data(struct broadsheetfb_par *par) +{ + if (par->board->mmio_read) + return par->board->mmio_read(par); + else + return broadsheet_gpio_get_data(par); +} + +static void broadsheet_gpio_write_reg(struct broadsheetfb_par *par, u16 reg, u16 data) { /* wait for ready to go hi. (lo is busy) */ @@ -203,16 +263,34 @@ static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, /* cs lo, dc lo for cmd, we lo for each data, db as usual */ par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, BS_CMD_WR_REG); + broadsheet_gpio_issue_cmd(par, BS_CMD_WR_REG); par->board->set_ctl(par, BS_DC, 1); - broadsheet_issue_data(par, reg); - broadsheet_issue_data(par, data); + broadsheet_gpio_issue_data(par, reg); + broadsheet_gpio_issue_data(par, data); par->board->set_ctl(par, BS_CS, 1); } +static void broadsheet_mmio_write_reg(struct broadsheetfb_par *par, u16 reg, + u16 data) +{ + par->board->mmio_write(par, BS_MMIO_CMD, BS_CMD_WR_REG); + par->board->mmio_write(par, BS_MMIO_DATA, reg); + par->board->mmio_write(par, BS_MMIO_DATA, data); + +} + +static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, + u16 data) +{ + if (par->board->mmio_write) + broadsheet_mmio_write_reg(par, reg, data); + else + broadsheet_gpio_write_reg(par, reg, data); +} + static void broadsheet_write_reg32(struct broadsheetfb_par *par, u16 reg, u32 data) { @@ -223,8 +301,8 @@ static void broadsheet_write_reg32(struct broadsheetfb_par *par, u16 reg, static u16 broadsheet_read_reg(struct broadsheetfb_par *par, u16 reg) { - broadsheet_send_command(par, reg); - msleep(100); + broadsheet_send_cmdargs(par, BS_CMD_RD_REG, 1, ®); + par->board->wait_for_rdy(par); return broadsheet_get_data(par); } diff --git a/include/video/broadsheetfb.h b/include/video/broadsheetfb.h index a2c2829ceb3..d65b6689e92 100644 --- a/include/video/broadsheetfb.h +++ b/include/video/broadsheetfb.h @@ -34,6 +34,10 @@ #define BS_DC 0x02 #define BS_WR 0x03 +/* Broadsheet IO interface specific defines */ +#define BS_MMIO_CMD 0x01 +#define BS_MMIO_DATA 0x02 + /* struct used by broadsheet. board specific stuff comes from *board */ struct broadsheetfb_par { struct fb_info *info; @@ -49,12 +53,17 @@ struct broadsheet_board { struct module *owner; int (*init)(struct broadsheetfb_par *); int (*wait_for_rdy)(struct broadsheetfb_par *); - void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8); - void (*set_hdb)(struct broadsheetfb_par *, u16); - u16 (*get_hdb)(struct broadsheetfb_par *); void (*cleanup)(struct broadsheetfb_par *); int (*get_panel_type)(void); int (*setup_irq)(struct fb_info *); -}; + /* Functions for boards that use GPIO */ + void (*set_ctl)(struct broadsheetfb_par *, unsigned char, u8); + void (*set_hdb)(struct broadsheetfb_par *, u16); + u16 (*get_hdb)(struct broadsheetfb_par *); + + /* Functions for boards that have specialized MMIO */ + void (*mmio_write)(struct broadsheetfb_par *, int type, u16); + u16 (*mmio_read)(struct broadsheetfb_par *); +}; #endif |